CN111558599B - A collaborative resource processing system and method for waste packaging barrels and waste salt - Google Patents
A collaborative resource processing system and method for waste packaging barrels and waste salt Download PDFInfo
- Publication number
- CN111558599B CN111558599B CN202010407570.8A CN202010407570A CN111558599B CN 111558599 B CN111558599 B CN 111558599B CN 202010407570 A CN202010407570 A CN 202010407570A CN 111558599 B CN111558599 B CN 111558599B
- Authority
- CN
- China
- Prior art keywords
- waste
- cleaning
- iron
- liquid
- salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 203
- 150000003839 salts Chemical class 0.000 title claims abstract description 81
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000012545 processing Methods 0.000 title description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 149
- 238000004140 cleaning Methods 0.000 claims abstract description 105
- 239000007788 liquid Substances 0.000 claims abstract description 73
- 229910052742 iron Inorganic materials 0.000 claims abstract description 71
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000004064 recycling Methods 0.000 claims abstract description 30
- 239000007800 oxidant agent Substances 0.000 claims abstract description 13
- 230000001590 oxidative effect Effects 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims description 33
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 24
- 239000003792 electrolyte Substances 0.000 claims description 17
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 14
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims description 12
- 239000012670 alkaline solution Substances 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 11
- 238000007885 magnetic separation Methods 0.000 claims description 10
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 10
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229910001868 water Inorganic materials 0.000 claims description 9
- 150000002500 ions Chemical class 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 239000011780 sodium chloride Substances 0.000 claims description 7
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 6
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 230000000593 degrading effect Effects 0.000 claims description 3
- HTXDPTMKBJXEOW-UHFFFAOYSA-N iridium(IV) oxide Inorganic materials O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000003011 anion exchange membrane Substances 0.000 claims description 2
- 150000003841 chloride salts Chemical class 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 abstract description 14
- 238000005868 electrolysis reaction Methods 0.000 abstract description 10
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052801 chlorine Inorganic materials 0.000 abstract description 9
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 5
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 239000012459 cleaning agent Substances 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000012946 outsourcing Methods 0.000 description 4
- 235000011164 potassium chloride Nutrition 0.000 description 4
- 239000001103 potassium chloride Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical group [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the field of waste recycling, in particular to a cooperative recycling treatment system and a treatment method for waste packaging barrels and waste salt. A synergistic recycling treatment system for waste packaging barrels and waste salt comprises a waste packaging barrel pretreatment subsystem and a waste salt electrochemical treatment subsystem, wherein the waste packaging barrel pretreatment subsystem comprises a cleaning unit for cleaning iron materials formed by the waste packaging barrels, alkaline cleaning liquid adopted in cleaning is obtained by electrolysis in the waste salt electrochemical treatment subsystem, and chlorine obtained by electrolysis in the waste salt electrochemical treatment subsystem can be used as an oxidant for cleaning waste liquid treatment, so that part of organic pollutants are degraded, and the difficulty of subsequent advanced treatment is reduced.
Description
Technical Field
The invention relates to the field of waste recycling, in particular to a cooperative recycling treatment system and a treatment method for waste packaging barrels and waste salt.
Background
The waste packaging barrel containing or directly contaminated with hazardous waste belongs to the hazardous waste, code 900-041-49. The traditional waste iron packaging barrel is recycled after being cleaned by an organic solvent, the organic solvent used in the production process is high in risk, and secondary pollution can be caused. Therefore, the alkaline aqueous solution cleaning process is changed from the viewpoint of environmental safety. But the COD concentration of the cleaned wastewater is high, the biodegradability is poor, and the treatment difficulty is high. And dirt on the iron sheet is difficult to clean and separate. On the other hand, the disposal cost of waste salt is extremely high, which becomes a difficult point for treatment. In order to solve the above problems, a novel efficient resource-based processing technique has been developed.
Disclosure of Invention
In order to solve the above problems, a first object of the present invention is to provide a system for the cooperative recycling of waste packaging barrels and waste salts, and a second object of the present invention is to provide a method for the cooperative recycling of waste packaging barrels and waste salts. The synergistic recycling treatment system and method can utilize the waste salt to generate alkaline solution and chlorine on line, wherein the alkaline solution can be used as a cleaning agent, the chlorine can be used as an oxidant, and the biodegradability is improved by treating the cleaned wastewater.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The cooperative recycling treatment system for the waste packaging barrel and the waste salt comprises a waste packaging barrel pretreatment subsystem and a waste salt electrochemical treatment subsystem, wherein the waste packaging barrel pretreatment subsystem comprises a cleaning unit for cleaning iron materials;
The waste salt electrochemical treatment subsystem comprises an electrochemical reactor and a preparation tank for preparing electrolyte with a main component of chloride salt, wherein the electrochemical reactor comprises a cathode chamber, an anode chamber, and a cathode and an anode which are respectively arranged in the cathode chamber and the anode chamber and are connected with a power supply;
the outlet end of the preparation tank is connected with the inlet end of the cathode chamber through a pipeline, the outlet end of the cathode chamber is connected with the inlet end of the cleaning unit through a pipeline, and the outlet end of the cleaning unit is connected with the inlet end of the anode chamber through a pipeline.
The technical scheme is that the collaborative recycling treatment system comprises a waste packaging barrel pretreatment subsystem and a waste salt electrochemical treatment subsystem, wherein the waste packaging barrel pretreatment subsystem comprises a cleaning unit for cleaning iron materials formed by the waste packaging barrel, alkaline cleaning liquid adopted in cleaning is obtained by electrolysis in the waste salt electrochemical treatment subsystem, and chlorine obtained by electrolysis in the waste salt electrochemical treatment subsystem can be used as an oxidant for cleaning waste liquid treatment to degrade part of organic pollutants and reduce the difficulty of subsequent deep treatment.
Advantages and positive effects of the invention
1. Realizes the cooperative treatment of the waste packaging barrel and the waste salt and the recycling of resources.
2. The alkaline cleaning liquid is generated on line by utilizing the waste salt, so that the outsourcing cost of the cleaning agent is saved, and meanwhile, the disposal fee of the waste salt and the outsourcing fee of the waste iron can be collected, and the economic benefit is considerable.
3. The alkaline cleaning agent is adopted, and dirt attached to the surface of the iron piece can be effectively removed through combined treatment of friction cleaning and ultrasonic cleaning, so that the product quality is good.
4. The byproduct chlorine of the waste salt electrochemical treatment subsystem can be used as an oxidant for treating the cleaning waste liquid, so that part of organic pollutants are degraded, and the difficulty of subsequent advanced treatment is reduced.
Preferably, the waste salt electrochemical treatment subsystem further comprises an anode tank, wherein the anode tank is connected to a pipeline between the outlet end of the cleaning unit and the inlet end of the anode chamber and is used for storing waste liquid containing organic matters and ammonia nitrogen discharged by the cleaning unit.
Preferably, the anode is preferably a conductive metal or metal oxide, and the surface of the anode is coated with one or more catalytic materials in PbO 2、RuO2、MnO2、IrO2、SnO2.
Preferably, the waste salt electrochemical treatment subsystem further comprises a waste liquid tank, wherein the inlet end of the waste liquid tank is connected with the outlet end of the anode chamber, and the waste liquid in the anode chamber is introduced into the waste liquid tank for temporary storage so as to facilitate subsequent advanced treatment.
Preferably, the waste salt electrochemical treatment subsystem further comprises a cleaning liquid storage tank connected to the pipeline between the outlet end of the cathode chamber and the inlet end of the cleaning unit. The cleaning solution storage tank is used for storing alkaline cleaning solution obtained by electrolysis in the waste salt electrochemical treatment subsystem.
Preferably, the cleaning unit of the waste packaging barrel pretreatment subsystem specifically comprises a friction cleaning unit and an ultrasonic cleaning unit, wherein the outlet ends of the friction cleaning unit and the ultrasonic cleaning unit are connected with the inlet end of the anode chamber through pipelines, and the inlet ends of the friction cleaning unit and the ultrasonic cleaning unit are connected with the outlet end of the cathode chamber through pipelines. In the technical scheme, the iron material obtained by processing the waste packaging barrel is required to be subjected to two working procedures of friction cleaning and ultrasonic cleaning, and the specific cleaning working procedures are recorded in the following method. After the iron sheet is cleaned by two procedures, the iron sheet reaches the product standard of recycling the waste iron, and can be sold as the waste iron.
Preferably, the waste packaging barrel pretreatment subsystem further comprises, in order
The residual liquid collecting unit is used for collecting residual liquid of the waste iron packaging barrel and separating out residual dangerous waste in the barrel;
The crushing unit is used for crushing the waste iron packaging barrel;
And the magnetic separation unit is used for separating iron materials and non-iron residues from the crushed materials through magnetic separation.
The cooperative recycling treatment method for the waste packaging barrel and the waste salt is characterized by comprising a waste packaging barrel pretreatment process and a waste salt electrochemical treatment process, wherein the waste packaging barrel pretreatment process comprises the following steps:
Step1, collecting residual liquid of a collected waste iron packaging barrel, and separating out residual dangerous waste in the barrel;
Step 2, the residual liquid is collected and then enters a crushing unit for crushing;
step 3, separating iron materials and non-iron residues from the crushed materials through magnetic separation;
Step 4, cleaning the iron material to reach the product standard of waste iron recycling, wherein the cleaning liquid in the step is from alkaline solution obtained by a waste salt electrochemical treatment process, and the waste liquid generated in the step is treated by the waste salt electrochemical treatment process;
the waste salt electrochemical treatment process comprises the following steps:
Step 1, preparing waste salt into a solution with the Cl ion concentration of 100-1000 mg/L as electrolyte;
Step 2, carrying out electrochemical treatment on the electrolyte and the waste liquid obtained in the waste packaging barrel pretreatment process step 4 to prepare an alkaline solution and a chlorate oxidant;
And step 3, introducing the alkaline solution into the step 4 of the pretreatment process of the waste packaging barrel to serve as cleaning liquid, degrading organic matters and ammonia nitrogen in the waste liquid by using the chlorate oxidant, and temporarily storing the waste liquid.
Preferably, the step 1 of the electrochemical treatment process of the waste salt specifically comprises the step of preparing a solution with the main component of one or both of NaCl and KCl and water as an electrolyte, wherein the concentration of Cl ions is 100-1000 mg/L.
Preferably, the step 4 includes a step 4.1, a friction cleaning process and a step 4.2, and an ultrasonic cleaning process;
Step 4.1, the friction cleaning procedure is to soak the iron material in the cleaning liquid to continuously rub and peel off the dirt attached on the iron sheet;
And 4.2, the ultrasonic cleaning process is specifically to soak the iron sheet in a cleaning liquid and clean the iron sheet by ultrasonic waves.
Drawings
FIG. 1 is a schematic diagram of a cooperative resource processing system according to the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Example 1:
a co-resource treatment system for waste packaging barrels and waste salts as shown in fig. 1 comprises a waste packaging barrel pretreatment subsystem and a waste salt electrochemical treatment subsystem.
The pretreatment subsystem of the waste packaging barrel sequentially comprises
And the residual liquid collecting unit 1 is used for collecting residual liquid of the waste iron packaging barrel and separating out residual dangerous waste in the barrel.
And the crushing unit 2 is used for crushing the waste iron packaging barrel.
And the magnetic separation unit 3 is used for separating iron materials and non-iron residues from the crushed materials through magnetic separation.
Comprises a cleaning unit for cleaning iron materials. The cleaning units specifically comprise a friction cleaning unit 4 and an ultrasonic cleaning unit 5.
The operation steps of the waste packaging barrel pretreatment subsystem are as follows, the collected waste iron packaging barrel is firstly collected by residual liquid, and the residual dangerous waste in the barrel is separated out for separate disposal. The residual liquid is collected and then enters a crushing unit 2, and crushing equipment adopts a commercially available crusher, preferably a shearing crusher. The crushed materials enter a magnetic separation unit 3, and iron materials and non-iron residues are separated through a magnetic separator. The non-ferrous residue is collected and disposed of further. The ferrous material enters the friction washing unit 4. The friction cleaning unit 4 is preferably a roll type cleaning machine, and iron materials are soaked in cleaning liquid to continuously rub and peel off dirt attached to the iron sheet. The friction cleaning unit 4 cleaning fluid comes from a waste salt electrochemical treatment system. After being treated by the friction cleaning unit 4, the iron sheet enters the ultrasonic cleaning unit 5 for further cleaning. The ultrasonic cleaning unit 5 cleaning liquid comes from a waste salt electrochemical treatment system. The cleaning liquid of the friction cleaning unit 4 and the ultrasonic cleaning unit 5 enters the anode tank for temporary storage after being used. The iron sheet after ultrasonic cleaning reaches the product standard of recycling the waste iron, and can be sold as the waste iron.
The waste salt electrochemical treatment subsystem comprises an electrochemical reactor 6, an anode tank 7, a waste liquid tank 8, a cleaning liquid storage tank 9 and a preparation tank 10. The electrochemical reactor 6 includes a cathode chamber 61, an anode chamber 62, and a cathode 64 and an anode 65 respectively disposed in the cathode chamber 61 and the anode chamber 62 and connected to a power source 63. Wherein the cathode chamber 61 and the anode chamber 62 are separated by an anion exchange membrane 66, and the anode 65 is preferably conductive metal or metal oxide, and the surface of the anode is coated with one or more catalytic materials of PbO 2、RuO2、MnO2、IrO2、SnO2.
The preparation tank 10 is used for preparing an electrolyte with a main component of chloride, and the outlet end of the preparation tank 10 is connected with the inlet end of the cathode chamber 61 through a pipeline. The outlet end of the cathode chamber 61 is connected with the inlet end of the cleaning unit through a pipeline, the cleaning liquid storage tank 9 is used for storing alkaline cleaning agent obtained by electrolysis in the waste salt electrochemical treatment subsystem, and the cleaning liquid storage tank 9 is connected on the pipeline between the outlet end of the cathode chamber 61 and the inlet end of the cleaning unit. The outlet end of the cleaning unit is connected with the inlet end of the anode chamber 62 through a pipeline, and the anode tank 7 is connected on the pipeline between the outlet end of the cleaning unit and the inlet end of the anode chamber 62 and is used for storing the waste liquid containing organic matters and ammonia nitrogen discharged by the cleaning unit. The inlet end of the waste liquid tank 8 is connected with the outlet end of the anode chamber 62, and the waste liquid in the anode chamber 62 is introduced into the waste liquid tank 8 for temporary storage so as to facilitate the subsequent advanced treatment.
As described above, the cleaning unit specifically includes the friction cleaning unit 4 and the ultrasonic cleaning unit 5. In this case, the outlet ends of the friction washing unit 4 and the ultrasonic washing unit 5 are connected to the inlet end of the anode chamber 62 through pipes, and the inlet ends of the friction washing unit 4 and the ultrasonic washing unit 5 are connected to the outlet end of the cathode chamber 61 through pipes. In the technical scheme, the iron material obtained by processing the waste packaging barrel is subjected to two working procedures of friction cleaning and ultrasonic cleaning, and the specific cleaning working procedure is as described in the embodiment 2. After the iron sheet is cleaned by two procedures, the iron sheet reaches the product standard of recycling the waste iron, and can be sold as the waste iron.
The technical scheme is adopted, and the technical scheme relates to a cooperative recycling treatment system for waste packaging barrels and waste salt, which comprises a waste packaging barrel pretreatment subsystem and a waste salt electrochemical treatment subsystem. The waste packaging barrel pretreatment subsystem comprises a cleaning unit and is used for cleaning iron materials formed by the waste packaging barrels. The alkaline cleaning liquid adopted in the cleaning is obtained by electrolysis in the waste salt electrochemical treatment subsystem, and the chlorine obtained by electrolysis in the waste salt electrochemical treatment subsystem can be used as an oxidant for treating the cleaning waste liquid to degrade part of organic pollutants, so that the difficulty of subsequent advanced treatment is reduced.
Advantages and positive effects of the invention
1. Realizes the cooperative treatment of the waste packaging barrel and the waste salt and the recycling of resources.
2. The alkaline cleaning liquid is generated on line by utilizing the waste salt, so that the outsourcing cost of the cleaning agent is saved, and meanwhile, the disposal fee of the waste salt and the outsourcing fee of the waste iron can be collected, and the economic benefit is considerable.
3. The alkaline cleaning agent is adopted, and dirt attached to the surface of the iron piece can be effectively removed through combined treatment of friction cleaning and ultrasonic cleaning, so that the product quality is good.
4. The byproduct chlorine of the waste salt electrochemical treatment subsystem can be used as an oxidant for treating the cleaning waste liquid, so that part of organic pollutants are degraded, and the difficulty of subsequent advanced treatment is reduced.
Example 2:
the embodiment provides a method for cooperatively recycling the waste packaging barrel and the waste salt based on the system for cooperatively recycling the waste packaging barrel and the waste salt in the embodiment 1, which comprises a waste packaging barrel pretreatment process and a waste salt electrochemical treatment process. The pretreatment process of the waste packaging barrel comprises the following steps:
And step1, collecting residual liquid from the collected waste iron packaging barrel, and separating out the residual dangerous waste in the barrel.
And 2, after the residual liquid is collected, the packaging barrel enters a crushing unit 2 for crushing.
And 3, separating iron materials and non-iron residues from the crushed materials through magnetic separation.
And 4, cleaning the iron material to reach the product standard of waste iron recycling, wherein the cleaning liquid in the step is from alkaline solution obtained by a waste salt electrochemical treatment process, and the waste liquid generated in the step is treated by the waste salt electrochemical treatment process.
The step4 comprises a step 4.1, a friction cleaning process and a step 4.2, and an ultrasonic cleaning process.
And 4.1, the friction cleaning procedure is to soak the iron material in the cleaning liquid to continuously rub and peel off dirt attached to the iron sheet.
And 4.2, the ultrasonic cleaning process is specifically to soak the iron sheet in a cleaning liquid and clean the iron sheet by ultrasonic waves.
The waste salt electrochemical treatment process comprises the following steps:
And step 1, preparing a solution with the Cl ion concentration of 100-1000 mg/L as an electrolyte. The step 1 is specifically that waste salt with main components of one or two of NaCl and KCl and water are adopted to prepare a solution with the concentration of Cl ions of 100-1000 mg/L as electrolyte.
And 2, carrying out electrochemical treatment on the electrolyte and the waste liquid obtained in the waste packaging barrel pretreatment process step 4 to obtain an alkaline solution and a chlorate oxidant.
And step 3, introducing the alkaline solution into the step 4 of the pretreatment process of the waste packaging barrel to serve as cleaning liquid, degrading organic matters and ammonia nitrogen in the waste liquid by using the chlorate oxidant, and temporarily storing the waste liquid.
The method is implemented by preparing waste salt into a solution with the Cl ion concentration of 100-1000 mg/L, and introducing the solution into a cathode chamber 61 of an electrochemical reactor 6 as electrolyte. The cleaning liquid waste water used in the anode tank 7 is introduced into the anode chamber 62. The positive electrode of the power supply 63 is connected with the anode 65, and the negative electrode of the power supply 63 is connected with the cathode 64. The output of the power supply 63 can be constant current, constant voltage or pulse mode, and the current density is 0.5-35A/dm 2. After the power is on, the cathode 64 undergoes a reduction reaction to generate hydrogen and hydroxyl, thereby generating an alkaline solution, which enters the cleaning solution storage tank 9 to be used as cleaning solution. The chloride ions in the cathode chamber 61 migrate to the anode chamber 62 under the action of electrodynamic force and concentration difference, and undergo oxidation reaction at the anode 65 to generate chlorine, and the chlorine is dissolved in water to react to generate hypochlorite oxidant, so that organic matters and ammonia nitrogen in the waste liquid of the anode 65 can be degraded.
Based on the above-mentioned waste packaging barrel and salt cooperative resource treatment system and method, two groups of experiments adopted are recorded as follows:
And in the first experimental group, the iron bucket for containing the waste engine oil is pretreated. The waste salt mainly containing sodium chloride obtained by utilizing the incineration fly ash water washing wastewater to evaporate and crystallize is prepared into electrolyte, the concentration of the electrolyte is 300mg/L, and the indexes of the waste salt are shown in the following table. Stainless steel is used as a cathode 64, tiO2/RuO2 is used as an anode 65, electrolysis is carried out under the current density of 5A/dm2, and an alkaline cleaning liquid with the pH value of more than or equal to 13 is obtained in a cathode chamber 61 and is used for friction cleaning and ultrasonic cleaning of iron pieces. The COD concentration of the wastewater in the anode chamber 62 is reduced from 3561mg/L to 1915mg/L, and the ammonia nitrogen concentration is reduced from 314mg/L to 91mg/L. The quality of the recycled regenerated iron piece meets the relevant limit value requirements in waste iron and steel GB 4223-2004.
TABLE 1 waste salt index of Experimental group I
| Project | Index% |
| The content of sodium chloride is more than or equal to | 93.3 |
| Moisture is less than or equal to | 4.0 |
| Water insoluble matter less than or equal to | 0.2 |
| The total amount of calcium and magnesium ions is less than or equal to | 0.7 |
| Sulfate ion less than or equal to | 1.0 |
And in the second experimental group, the iron bucket filled with the paint slag is pretreated. The waste salt mixed by sodium chloride and potassium chloride obtained by evaporating and crystallizing the incineration fly ash water washing wastewater is used for preparing electrolyte, the concentration of the electrolyte is 400mg/L, and the indexes of the waste salt are shown in the following table. Stainless steel is used as a cathode 64, tiO2/RuO2 is used as an anode 65, electrolysis is carried out under the current density of 5A/dm2, and an alkaline cleaning liquid with the pH value of more than or equal to 13 is obtained in a cathode chamber 61 and is used for friction cleaning and ultrasonic cleaning of iron pieces. The COD concentration of the wastewater is reduced from 3812mg/L to 2038mg/L, and the ammonia nitrogen concentration is reduced from 532mg/L to 116mg/L. The quality of the recycled regenerated iron piece meets the relevant limit value requirements in waste iron and steel GB 4223-2004.
TABLE 2 waste salt index of experimental group II
| Project | Index% |
| The content of potassium chloride and sodium chloride is more than or equal to | 90.1 |
| Moisture is less than or equal to | 4.0 |
| Water insoluble matter less than or equal to | 0.2 |
| The total amount of calcium and magnesium ions is less than or equal to | 0.7 |
| Sulfate ion less than or equal to | 2.0 |
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention.
Claims (7)
1. The cooperative recycling treatment system for the waste packaging barrels and the waste salt is characterized by comprising a waste packaging barrel pretreatment subsystem and a waste salt electrochemical treatment system, wherein the waste packaging barrel pretreatment subsystem comprises a cleaning unit for cleaning iron materials;
The waste salt electrochemical treatment system comprises an electrochemical reactor (6) and a preparation tank (10) for preparing electrolyte with a main component of chloride salt, wherein the electrochemical reactor (6) comprises a cathode chamber (61), an anode chamber (62), and a cathode (64) and an anode (65) which are respectively positioned in the cathode chamber (61) and the anode chamber (62) and connected with a power supply (63), and the cathode chamber (61) and the anode chamber (62) are separated by an anion exchange membrane (66);
the outlet end of the preparation tank (10) is connected with the inlet end of the cathode chamber (61) through a pipeline, the outlet end of the cathode chamber (61) is connected with the inlet end of the cleaning unit through a pipeline, and the outlet end of the cleaning unit is connected with the inlet end of the anode chamber (62) through a pipeline;
The waste salt electrochemical treatment system further comprises an anode tank (7), wherein the anode tank (7) is connected to a pipeline between the outlet end of the cleaning unit and the inlet end of the anode chamber (62) and is used for storing waste liquid containing organic matters and ammonia nitrogen discharged by the cleaning unit;
The waste salt electrochemical treatment system further comprises a cleaning liquid storage tank (9), and the cleaning liquid storage tank (9) is connected to a pipeline between the outlet end of the cathode chamber (61) and the inlet end of the cleaning unit;
The cleaning unit of the waste packaging barrel pretreatment subsystem specifically comprises a friction cleaning unit (4) and an ultrasonic cleaning unit (5), wherein the outlet ends of the friction cleaning unit (4) and the ultrasonic cleaning unit (5) are connected with the inlet end of the anode chamber (62) through pipelines, and the inlet ends of the friction cleaning unit (4) and the ultrasonic cleaning unit (5) are connected with the outlet end of the cathode chamber (61) through pipelines.
2. A co-recycling system for waste packaging barrels and waste salts according to claim 1, wherein the anode (65) is made of conductive metal or metal oxide, and is coated with one or more catalytic materials selected from PbO 2、RuO2、MnO2、IrO2、SnO2.
3. The co-recycling system for waste packaging barrels and waste salts according to claim 1, wherein the waste salt electrochemical treatment system further comprises a waste liquid tank (8), and an inlet end of the waste liquid tank (8) is connected with an outlet end of the anode chamber (62).
4. The co-recycling treatment system of waste packaging barrels and waste salt according to claim 1, wherein the waste packaging barrel pretreatment subsystem further comprises, in order:
A residual liquid collecting unit (1) for collecting residual liquid of the waste iron packaging barrel and separating out residual dangerous waste in the barrel;
A crushing unit (2) for crushing the waste iron packaging barrel;
And the magnetic separation unit (3) is used for separating iron materials and non-iron residues from the crushed materials through magnetic separation.
5. A method for cooperatively recycling waste packaging barrels and waste salt is characterized in that the method adopts the system of any one of claims 1-4, and comprises a waste packaging barrel pretreatment process and a waste salt electrochemical treatment process, wherein the waste packaging barrel pretreatment process comprises the following steps:
Step1, collecting residual liquid of a collected waste iron packaging barrel, and separating out residual dangerous waste in the barrel;
Step 2, the residual liquid is collected and then enters a crushing unit (2) for crushing;
step 3, separating iron materials and non-iron residues from the crushed materials through magnetic separation;
Step 4, cleaning the iron material to reach the product standard of waste iron recycling, wherein the cleaning liquid in the step is from alkaline solution obtained by a waste salt electrochemical treatment process, and the waste liquid generated in the step is treated by the waste salt electrochemical treatment process;
the waste salt electrochemical treatment process comprises the following steps:
Step 1, preparing waste salt into a solution with the Cl ion concentration of 100-1000 mg/L as electrolyte;
Step 2, carrying out electrochemical treatment on the electrolyte and the waste liquid obtained in the waste packaging barrel pretreatment process step 4 to prepare an alkaline solution and a chlorate oxidant;
And step 3, introducing the alkaline solution into the step 4 of the pretreatment process of the waste packaging barrel to serve as cleaning liquid, degrading organic matters and ammonia nitrogen in the waste liquid by using the chlorate oxidant, and temporarily storing the waste liquid.
6. The method for collaborative recycling of waste packaging barrels and waste salts according to claim 5, wherein the step 1 of the electrochemical treatment process of the waste salts is characterized in that waste salts with one or two of NaCl and KCl as main components and water are used as electrolyte, wherein the solution with the concentration of Cl ions of 100-1000 mg/L is prepared.
7. The method for cooperatively recycling waste packaging barrels and waste salts according to claim 5, wherein the step 4 comprises a step 4.1, a friction cleaning process and a step 4.2, and an ultrasonic cleaning process;
Step 4.1, the friction cleaning procedure is to soak the iron material in the cleaning liquid to continuously rub and peel off the dirt attached on the iron sheet;
And 4.2, the ultrasonic cleaning process is specifically to soak the iron sheet in a cleaning liquid and clean the iron sheet by ultrasonic waves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010407570.8A CN111558599B (en) | 2020-05-14 | 2020-05-14 | A collaborative resource processing system and method for waste packaging barrels and waste salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010407570.8A CN111558599B (en) | 2020-05-14 | 2020-05-14 | A collaborative resource processing system and method for waste packaging barrels and waste salt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111558599A CN111558599A (en) | 2020-08-21 |
| CN111558599B true CN111558599B (en) | 2025-01-03 |
Family
ID=72072048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010407570.8A Active CN111558599B (en) | 2020-05-14 | 2020-05-14 | A collaborative resource processing system and method for waste packaging barrels and waste salt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111558599B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212597863U (en) * | 2020-05-14 | 2021-02-26 | 浙江天象环境服务有限公司 | Cooperative recycling treatment system for waste packaging barrels and waste salt |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101373486B1 (en) * | 2011-12-31 | 2014-03-14 | 전주대학교 산학협력단 | Treating and reusing method of high salinity waste water |
| CN103466852B (en) * | 2013-09-26 | 2015-04-01 | 南京大学 | Sludge-reduction electrocatalytic reduction-oxidation pretreatment method for nitrotoluene production waste water |
| CN106148998B (en) * | 2016-08-26 | 2018-02-02 | 江苏安凯特科技股份有限公司 | Abraum salt recycles recovery system |
| CN108787689A (en) * | 2017-04-28 | 2018-11-13 | 安徽嘉朋特环保科技服务有限公司 | A kind of useless pail pack recovery and treatment method |
| CN109825713A (en) * | 2019-03-20 | 2019-05-31 | 北京航天国环技术有限公司 | A kind of processing method of the abraum salt containing aluminium |
-
2020
- 2020-05-14 CN CN202010407570.8A patent/CN111558599B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212597863U (en) * | 2020-05-14 | 2021-02-26 | 浙江天象环境服务有限公司 | Cooperative recycling treatment system for waste packaging barrels and waste salt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111558599A (en) | 2020-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205151853U (en) | Electrolysis trough that contains salt waste water and retrieve acid -base is simultaneously handled to two units negative pole altogether | |
| CN105523668B (en) | A kind of PCB nitrogen-containing wastewaters Zero discharge treatment method and device | |
| CN104152905A (en) | Acidic copper chloride etching liquid electrolytic regeneration recycling and copper plate recovery device and method | |
| CN111268771A (en) | Electrochemical method for dechlorinating and removing heavy metals from incineration fly ash water washing liquid | |
| CN102321908A (en) | Recycling and regenerating process method and metal copper recovery system of acid chloride etching solution | |
| CN102101010B (en) | Electrolysis circulating flue gas desulfurization method utilizing reclamation semidry method | |
| CN106966414B (en) | A kind of waste phosphoric acid processing method producing electrode foil | |
| CN102206835A (en) | Acid etchant online electrolytic recycling device and etchant regenerating method | |
| CN106929857A (en) | Cupric acidity etching liquid recycling equipment for reclaiming and method | |
| CN105329988A (en) | Electrolytic bath for treating high-salt industrial waste water by combining Fenton method with bipolar membrane technology | |
| WO2021138960A1 (en) | Electrochemical method for synchronous implementation of organic phosphorus wastewater treatment and recycling. | |
| CN111636073A (en) | Device and process for recycling salt-containing wastewater | |
| CN102286746B (en) | Recycling and regeneration of acid etching solution and copper recycling device | |
| US5443700A (en) | Method for treating waste water containing oil composed of esters, and treating apparatus thereof | |
| CN212247228U (en) | Contain salt waste water recycling apparatus based on electrolysis hydrogen manufacturing technique | |
| CN212597863U (en) | Cooperative recycling treatment system for waste packaging barrels and waste salt | |
| CN111558599B (en) | A collaborative resource processing system and method for waste packaging barrels and waste salt | |
| CN204198895U (en) | A kind of strip cleaning section electrolytic cleaning tank | |
| CN105236631B (en) | A high-salt industrial wastewater treatment method based on multi-electrode and multi-diaphragm electrolyzer | |
| CN101811756B (en) | Method for treating waste emulsion by indirect electrochemical oxidation | |
| CN219752008U (en) | Anti-pollution and anti-scaling waste salt solution utilization device | |
| CN205204884U (en) | Handle many diaphragm electrolysis of multi -electrode groove of high salt industrial waste water | |
| CN210505701U (en) | A device for continuous and efficient resource treatment of chloride ions in industrial wastewater | |
| CN204625786U (en) | A kind of acidic etching liquid electrolysis cycle regeneration system rapidly | |
| CN110240237B (en) | Device and process for continuously and efficiently recycling chloride ions in industrial wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |