CN105236635A - Manganese ore wastewater treatment method - Google Patents
Manganese ore wastewater treatment method Download PDFInfo
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- CN105236635A CN105236635A CN201510654558.6A CN201510654558A CN105236635A CN 105236635 A CN105236635 A CN 105236635A CN 201510654558 A CN201510654558 A CN 201510654558A CN 105236635 A CN105236635 A CN 105236635A
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- waste water
- manganese ore
- 15min
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- reaction
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- 239000011572 manganese Substances 0.000 title claims abstract description 44
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 41
- 238000004065 wastewater treatment Methods 0.000 title abstract description 4
- 239000002351 wastewater Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 49
- 230000015271 coagulation Effects 0.000 claims abstract description 6
- 238000005345 coagulation Methods 0.000 claims abstract description 6
- 230000016615 flocculation Effects 0.000 claims abstract description 6
- 238000005189 flocculation Methods 0.000 claims abstract description 6
- 238000001556 precipitation Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 239000006228 supernatant Substances 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 230000005855 radiation Effects 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 239000012286 potassium permanganate Substances 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 5
- 239000011790 ferrous sulphate Substances 0.000 claims description 4
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 abstract description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000008394 flocculating agent Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 235000010755 mineral Nutrition 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000011109 contamination Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000007516 brønsted-lowry acids Chemical class 0.000 description 1
- 150000007528 brønsted-lowry bases Chemical class 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- -1 dirt Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a manganese ore wastewater treatment method comprising the following steps: regulation, precipitation, illuminating, secondary regulation, coagulation, and discharging. The two-time regulating method is adopted, and Mn<2+> in water is effectively converted into MnO2, so as to achieve the purpose of manganese removal; by adding a flocculating agent in the treatment process, the treatment process is simplified, and a flocculation body can be rapidly formed, so as to be rapidly removed from the water; with cooperation of ultraviolet light illumination disinfection, the influence of wastewater discharge on the environment is greatly reduced; the method is good in treatment effect, high in treatment efficiency and simple in process, and is an excellent manganese ore wastewater treatment method.
Description
Technical field
Waste gas and waste liquid technical field of comprehensive utilization of the present invention, is specifically related to a kind of method processing manganese ore waste water.
Background technology
Manganese is one of important heavy metal monitoring index of ambient water quality pollutent, because China's manganese ore deposit mostly is middle-size and small-size mineral deposit, constrains the scale that Manganese Mine is built, and existing Manganese Mine throughput is general less.Whole nation year consumes manganese ore 1,000 ten thousand more than t, occupy first place in the world, but China's manganese resource lacks relatively, rich ore is less, due to the restriction of each side such as equipment and treatment technology in the exploitation and deep-processing process of a large amount of manganese ore, make polluting containing manganese waste material and Mn-bearing waste water of China comparatively serious, manganese ore mine water pollution can be divided into mineral pollution, Organic pollutants and bacterial contamination.Radio contamination and thermal pollution is also there is in some mine.Mineral pollution has sand, mud particle, dirt, dust, solvency, bronsted lowry acids and bases bronsted lowry etc.; Organic pollutants have the oxidative degradation products of grease, biological metabolic product, timber and other materials.Bacterial contamination is mainly by the pollution of the rock dust, breeze and the associated mineral that are scattered in exploitation, transportation.One large feature of manganese ore pit water is that mn ion content is high, and the manganese in pit water is dissolved in caused by water by the oxide compound of manganese in rocks and minerals, sulfide, carbonate and silicate etc.In oxidising process, manganese moves and generate Mn2 ﹢ in water, and therefore in pit water, manganese mainly exists with Mn2 ﹢ form.In mining process, discharge a large amount of waste water barren rock from down-hole, pollute river, occupy a large amount of farmland, mountain forest, grassland, destroy the eubiosis.
In present water, the harm of manganese has caused the most attention of people, but Mn2 ﹢ rate of oxidation is in neutral conditions very slow, is difficult to be oxidized to Manganse Dioxide by dissolved oxygen.In general, when pH value >7.0, comparatively fast, under identical pH value condition, the oxidation of Mn2 ﹢ is much slower than Fe2 ﹢, and thus in water, the removal of manganese is more much more difficult than iron for the rate of oxidation of the Fe2 ﹢ in underground water.When pH value >9.0, the rate of oxidation of Mn2 ﹢ is just obviously accelerated, Mn2 ﹢ promptly could be oxidized to MnO2 and separate out by dissolved oxygen, thus initial usually through adding the pH value of alkaline matter raising water or adding the chemical process demanganization that strong oxidizer etc. accelerates Mn2 ﹢ rate of oxidation, the present inventor, by carrying out research and analysis to Mn-bearing waste water pollution problem, proposes a kind for the treatment of process of manganese ore waste water.
Summary of the invention
The present invention aims to provide a kind of method processing manganese ore waste water, to solve numerous manganese ore wastewater treatment difficulty, contaminate environment, the problem that impact is ecological.The present invention is achieved by the following technical programs:
Process a method for manganese ore waste water, the method comprises the following steps:
A, adjustment: in manganese ore waste water, add highly basic, control the pH value > 9.5 of waste water in reaction process, the reaction times is 10-15min;
B, precipitation: waste water, according to after the waste water 10-15min after the linear velocity stirring reaction of regulation, is put into settling tank and left standstill 30min, by the MnO that reaction generates by clockwise direction
2get rid of through being separated;
C, irradiation: uviolizing process is carried out to the supernatant liquor of waste water, irradiation time is 10-15min;
D, Secondary Control: in the supernatant liquor through radiation treatment, add strong oxidizer, continue to stir 10-15min, then leave standstill 15min;
E, coagulation: in supernatant liquor, add flocculation agent, leave standstill 10min after continuing to stir 10min;
F, discharge: the precipitate and separate after leaving standstill got rid of, the waste water processed can be sent in pond and get rid of, or directly discharges.
Highly basic in described step a is the one in lime, NaOH.
Stirring linear velocity in described step b is 15-20m/s.
The irradiation distance of described step c middle-ultraviolet lamp radiation treatment is 25-30cm.
Strong oxidizer in described steps d is potassium permanganate.
The flocculation agent added in described step e is the one in iron trichloride, ferrous sulfate.
Beneficial effect of the present invention is: present invention employs twice adjustment method, effectively by the Mn2 in water
﹢change into MnO
2thus reach the object of demanganization, by adding flocculation agent in treating processes, simplify processes process, can form flocs unit fast, to remove from water rapidly, the illumination-based disinfection of combined with ultraviolet radiation, significantly reduce the impact of waste water eliminating on environment, present method treatment effect is good, processing efficiency is high, technique is simple, is a kind for the treatment of process of excellent manganese ore waste water.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further described, but described in claimed scope is not limited to.
Embodiment one
Process a method for manganese ore waste water, the method comprises the following steps:
A, adjustment: in manganese ore waste water, add lime, control the pH value > 9.5 of waste water in reaction process, the reaction times is 10min;
B, precipitation: waste water, according to stirring after linear velocity is the waste water 10min after 15m/s stirring reaction, is put into settling tank and left standstill 30min by clockwise direction, will the MnO that generates of reaction
2get rid of through being separated;
C, irradiation: uviolizing process is carried out to the supernatant liquor of waste water, irradiation distance is 25cm, and irradiation time is 10min;
D, Secondary Control: in the supernatant liquor through radiation treatment, add potassium permanganate, continue to stir 10min, then leave standstill 15min;
E, coagulation: in supernatant liquor, add iron trichloride, leave standstill 10min after continuing to stir 10min;
F, discharge: the precipitate and separate after leaving standstill got rid of, the waste water processed can be sent in pond and get rid of, or directly discharges.
Embodiment two
Process a method for manganese ore waste water, the method comprises the following steps:
A, adjustment: in manganese ore waste water, add NaOH, control the pH value > 9.5 of waste water in reaction process, the reaction times is 15min;
B, precipitation: waste water, according to stirring after linear velocity is the waste water 15min after 20m/s stirring reaction, is put into settling tank and left standstill 30min by clockwise direction, will the MnO that generates of reaction
2get rid of through being separated;
C, irradiation: uviolizing process is carried out to the supernatant liquor of waste water, irradiation distance is 30cm, and irradiation time is 15min;
D, Secondary Control: in the supernatant liquor through radiation treatment, add potassium permanganate, continue to stir 15min, then leave standstill 15min;
E, coagulation: in supernatant liquor, add iron trichloride, ferrous sulfate, leave standstill 10min after continuing to stir 10min;
F, discharge: the precipitate and separate after leaving standstill got rid of, the waste water processed can be sent in pond and get rid of, or directly discharges.
Embodiment three
Process a method for manganese ore waste water, the method comprises the following steps:
A, adjustment: in manganese ore waste water, add NaOH, control the pH value > 9.5 of waste water in reaction process, the reaction times is 13min;
B, precipitation: waste water, according to stirring after linear velocity is the waste water 13min after 18m/s stirring reaction, is put into settling tank and left standstill 30min by clockwise direction, will the MnO that generates of reaction
2get rid of through being separated;
C, irradiation: uviolizing process is carried out to the supernatant liquor of waste water, irradiation distance is 28cm, and irradiation time is 13min;
D, Secondary Control: in the supernatant liquor through radiation treatment, add potassium permanganate, continue to stir 13min, then leave standstill 15min;
E, coagulation: in supernatant liquor, add ferrous sulfate, leave standstill 10min after continuing to stir 10min;
F, discharge: the precipitate and separate after leaving standstill got rid of, the waste water processed can be sent in pond and get rid of, or directly discharges.
Claims (6)
1. process a method for manganese ore waste water, it is characterized in that: the method comprises the following steps:
A, adjustment: in manganese ore waste water, add highly basic, control the pH value > 9.5 of waste water in reaction process, the reaction times is 10-15min;
B, precipitation: waste water, according to after the waste water 10-15min after the linear velocity stirring reaction of regulation, is put into settling tank and left standstill 30min, by the MnO that reaction generates by clockwise direction
2get rid of through being separated;
C, irradiation: uviolizing process is carried out to the supernatant liquor of waste water, irradiation time is 10-15min;
D, Secondary Control: in the supernatant liquor through radiation treatment, add strong oxidizer, continue to stir 10-15min, then leave standstill 15min;
E, coagulation: in supernatant liquor, add flocculation agent, leave standstill 10min after continuing to stir 10min;
F, discharge: the precipitate and separate after leaving standstill got rid of, the waste water processed can be sent in pond and get rid of, or directly discharges.
2. the method for process manganese ore waste water according to claim 1, is characterized in that: the highly basic in described step a is the one in lime, NaOH.
3. the method for process manganese ore waste water according to claim 1, is characterized in that: the stirring linear velocity in described step b is 15-20m/s.
4. the method for process manganese ore waste water according to claim 1, is characterized in that: the irradiation distance of described step c middle-ultraviolet lamp radiation treatment is 25-30cm.
5. the method for process manganese ore waste water according to claim 1, is characterized in that: the strong oxidizer in described steps d is potassium permanganate.
6. the method for process manganese ore waste water according to claim 1, is characterized in that: the flocculation agent added in described step e is the one in iron trichloride, ferrous sulfate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510654558.6A CN105236635A (en) | 2015-10-10 | 2015-10-10 | Manganese ore wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510654558.6A CN105236635A (en) | 2015-10-10 | 2015-10-10 | Manganese ore wastewater treatment method |
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| Publication Number | Publication Date |
|---|---|
| CN105236635A true CN105236635A (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510654558.6A Pending CN105236635A (en) | 2015-10-10 | 2015-10-10 | Manganese ore wastewater treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587430A (en) * | 2016-12-19 | 2017-04-26 | 华中科技大学 | Treatment method of simultaneously removing multiple metal ions in manganiferous waste water |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080203032A1 (en) * | 2007-02-28 | 2008-08-28 | Inco Limited | Method for removing manganese from nickel laterite waste liquors |
| CN101503239A (en) * | 2009-03-23 | 2009-08-12 | 中国科学院生态环境研究中心 | Multicomponent composite flocculating setting agent and use in arsenic contamination water treatment |
| CN101643263A (en) * | 2009-09-02 | 2010-02-10 | 重庆大学 | Method for recovering heavy metal in electrolytic manganese passivating wastewater |
-
2015
- 2015-10-10 CN CN201510654558.6A patent/CN105236635A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080203032A1 (en) * | 2007-02-28 | 2008-08-28 | Inco Limited | Method for removing manganese from nickel laterite waste liquors |
| CN101503239A (en) * | 2009-03-23 | 2009-08-12 | 中国科学院生态环境研究中心 | Multicomponent composite flocculating setting agent and use in arsenic contamination water treatment |
| CN101643263A (en) * | 2009-09-02 | 2010-02-10 | 重庆大学 | Method for recovering heavy metal in electrolytic manganese passivating wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 孙侃: "磷矿选矿含锰尾水的综合利用研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587430A (en) * | 2016-12-19 | 2017-04-26 | 华中科技大学 | Treatment method of simultaneously removing multiple metal ions in manganiferous waste water |
| CN106587430B (en) * | 2016-12-19 | 2019-08-13 | 华中科技大学 | A treatment method for simultaneously removing multiple metal ions in manganese-containing wastewater |
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Application publication date: 20160113 |