DE1658138B2 - PROCESS FOR THE TREATMENT OF SLUDGE FROM WASTEWATER IN GALVANO TECHNICAL FACILITIES - Google Patents
PROCESS FOR THE TREATMENT OF SLUDGE FROM WASTEWATER IN GALVANO TECHNICAL FACILITIESInfo
- Publication number
- DE1658138B2 DE1658138B2 DE19671658138 DE1658138A DE1658138B2 DE 1658138 B2 DE1658138 B2 DE 1658138B2 DE 19671658138 DE19671658138 DE 19671658138 DE 1658138 A DE1658138 A DE 1658138A DE 1658138 B2 DE1658138 B2 DE 1658138B2
- Authority
- DE
- Germany
- Prior art keywords
- sludge
- water
- metal
- oxides
- ferrous
- 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.)
- Granted
Links
- 239000010802 sludge Substances 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 12
- 239000002351 wastewater Substances 0.000 title claims description 6
- 238000004140 cleaning Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 8
- 238000006386 neutralization reaction Methods 0.000 claims description 7
- -1 ferrous metal hydroxides Chemical class 0.000 claims description 6
- 239000010801 sewage sludge Substances 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000009713 electroplating Methods 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000000571 coke Substances 0.000 claims description 3
- 150000002506 iron compounds Chemical class 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 10
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 4
- 239000003795 chemical substances by application Substances 0.000 claims 4
- 229910052976 metal sulfide Inorganic materials 0.000 claims 4
- 150000004692 metal hydroxides Chemical class 0.000 claims 3
- 239000000047 product Substances 0.000 claims 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 2
- 150000004679 hydroxides Chemical class 0.000 claims 2
- 229910044991 metal oxide Inorganic materials 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 150000003568 thioethers Chemical class 0.000 claims 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229910052793 cadmium Inorganic materials 0.000 claims 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 125000004093 cyano group Chemical group *C#N 0.000 claims 1
- 238000011156 evaluation Methods 0.000 claims 1
- 210000003608 fece Anatomy 0.000 claims 1
- 239000003673 groundwater Substances 0.000 claims 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 235000014413 iron hydroxide Nutrition 0.000 claims 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 claims 1
- 239000010871 livestock manure Substances 0.000 claims 1
- 238000010297 mechanical methods and process Methods 0.000 claims 1
- 230000005226 mechanical processes and functions Effects 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 230000000717 retained effect Effects 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 150000003464 sulfur compounds Chemical class 0.000 claims 1
- 239000002699 waste material Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/126—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using drum filters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Description
Es sind auch Verfahren bekannt, die eine Sinte- haudenen Eisenverbindungen wie bei bekannten
fung derartiger Abwassersehlämme nach vorheriger Öäsreinigungsmassen zu Eisensülfid umgesetzt.
Entwässerung und Trocknung gegebenenfalls unter Durch die Aufbereitung und Verwendung geieknischung
von Zuschlagstoffen beinhalten, Die 60 nannter AbwasserscMämme für Gasreinigungszwecke
Siaterprödukte werden beispielsweise zu feuerfesten wird eine gefahrlose Beseitigung dieser für Gewässer
Und chemikalienbeständigen Bauelementen verarbei- und städtische Abwasserreinigungsanlagen schädlitet.
chen Stoffe erreicht, wobei für das Umsetzen der Hy-Processes are also known which convert sintered iron compounds into iron sulphide after previous cleaning masses, as in the case of known fungus of such sewage dams.
Drainage and drying, if necessary, including the processing and use of aggregates, the 60 named sewage combs for gas cleaning purposes, Siaterproducts are, for example, refractory, safe disposal of these water and chemical-resistant construction elements and municipal sewage treatment plants. reached substances, whereby for the implementation of the hy-
t Ferner ist bekannt, Eiseus^Jamm aus Neutralisa* dride in Oxide keine weiteren Energiekosten als die itensaniagen für salzsaure Beizen, d, h, ebenfalls Me- 65 sonst für die Regenerierung der bekannten Gasreinifdlhydroxid enthaltenden Schlamm, als Gasreini- gungsmassen erforderlichen Kosten aufzuwenden gUägsmasse zu verwenden. sind. Das aus Rückständen der Gasreinigungsmassen t is also known Eiseus ^ Jamm from neutralization * hydrides in oxides no further energy cost than the itensaniagen for hydrochloric acid pickling, d, h, also metal 65 otherwise containing for the regeneration of the known Gasreinifdlhydroxid mud, as gas cleaning masses costs required to spend gUägsmasse to use. are. That from residues of the gas cleaning compounds
Diese bekannten Verfahren erfordern neben durch Abrösten gewonnene Schwefeldioxid kann inThese known processes require sulfur dioxide obtained in addition to roasting
bekannter Weise für die Schwefelsäureerzeugung genutzt werden oder in der Zellstoffindustrie Verwendung finden. Die entstehenden Abbrände lassen sich im Hochofen weiterverarbeiten oder sie können ohne weiteres auf Halden abgelagert werden. Mit dem Einsatz von nichteisenmetallhydroxidhaltigen Abwasserschlämmen für Gasreinigungszwecke wird neben der gefahrlosen Beseitigung außerdem eine Werkstoffrückgewinnung ermöglichtknown to be used for the production of sulfuric acid or in the pulp industry Find. The resulting burn-offs can be further processed in the blast furnace or you can do without further be deposited in heaps. With the use of sewage sludge containing non-ferrous metal hydroxide For gas cleaning purposes, in addition to safe disposal, material recovery is also made possible
Die Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert werden.The invention will be explained in more detail below using an exemplary embodiment.
Xn einer einem galvanischen Betrieb angeschlossenen zentralen Neutralisations- und Entgiftungsanlage werden die bei der Neutralisation von galvanischen Abwässern ki der eigenen Anlage entstehenden und die aus Absetzanlagen fremder galvanischer Betriebe erhaltenen und angelieferten nichteisenmetallhydroxidhaltigen Abwasserschlämme mittels eines Schlammeindickers auf einen Wassergehalt von 96% eingedickt Durch den Einsatz von Saugzellenfiltern erfolgt eine Reduzierung des Wassergehaltes auf etwa 65°/o» Eine anschließende Trocknung auf 25% Wassergehalt geschieht bei einer Schütthöhe von 10 cm in überdachten dränagelosen Trockenbeeten. Der getrocknete Schlamm wird in einem gaserzeugenden Betrieb mittels Ammoniakwassers auf einen Wassergehalt von zumindest 40 % gebracht und mitXn a central neutralization and decontamination system connected to a galvanic system are generated during the neutralization of galvanic wastewater from your own plant and those containing non-ferrous metal hydroxide received and delivered from tailings of other electroplating companies Sewage sludge by means of a sludge thickener to a water content of 96% thickened The use of suction cell filters results in a reduction in the water content about 65% »A subsequent drying to 25% Water content occurs at a bed height of 10 cm in roofed, drainage-free drying beds. The dried sludge is converted into a gas-generating plant using ammonia water Water content of at least 40% brought and with
ίο 20% Koksgrus aufgelockert Der aufbereitete Abwasserschlamm wird zum Zwecke der Gasreinigung in die Absorptionskästen einer Gasreinigungsanlage eingefüllt Nach der eingetretenen Sättigung mit Schwefel wird der chemisch umgesetzte Abwasserschlämm zur Gewinnung von Schwefeldioxid an eineίο 20% coke breeze loosened The treated sewage sludge is used for gas cleaning in the absorption boxes of a gas cleaning system Filled in After the saturation with sulfur has occurred, the chemically converted sewage sludge is used for the production of sulfur dioxide to a
. Schwefelsäurefabrik abgegeben. iDe gesamten Abbrände der Schwefeisäurefabrik werden der Verhüttung zugeleitet. Sulfuric acid factory surrendered. iDe total burn-offs the sulfuric acid factory are sent to smelting
Claims (3)
entwässert, (Ke entwässerten Schlämme daraufhin Ausgehend von einem Verfahren zor BehandlungL Process for the treatment of sludge, process for the treatment of sludge from waste water after neutralization by 5 water electroplating companies and its settling to create under recovery, after the non-ferrous metal evaluation of these metal hydroxides containing hydroxide containing sludge as gas cleaning sludge from gas cleaning mass are used for sulphurous mass and stable, cyano-containing gases are used as the end product, characterized by the fact that non-ferrous metal hydroxides are formed from oxides that can be stored in heaps without holding sludge from electroplating operations for the. Implementation of the hydroxides into oxides an artificial or. natural processes require additional expenditure of energy
dewatered, (Ke dewatered sludge based on a procedure for treatment
technischer Betriebe nach Neutralisation der Abwäs- Es wurde festgestellt, daß die meisten HydroxideThe invention relates to a method for handling as a loosening agent 20 percent by weight of sludge that is mixed in with galvanic coke breeze from wastewater,
technical operations after neutralization of the wastewater It was found that most of the hydroxides
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV0032840 | 1967-01-23 | ||
| DEV0032840 | 1967-01-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1658138A1 DE1658138A1 (en) | 1971-11-25 |
| DE1658138B2 true DE1658138B2 (en) | 1973-02-15 |
| DE1658138C DE1658138C (en) | 1973-09-06 |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242210A (en) * | 2016-09-05 | 2016-12-21 | 湖北平安电工材料有限公司 | A kind of curing technology etching mud |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242210A (en) * | 2016-09-05 | 2016-12-21 | 湖北平安电工材料有限公司 | A kind of curing technology etching mud |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1658138A1 (en) | 1971-11-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) |