CN103614741A - Method of decreasing, reutilizing and circulating heavy metal wastewater in subsequent section of electrolytic manganese electrolysis - Google Patents
Method of decreasing, reutilizing and circulating heavy metal wastewater in subsequent section of electrolytic manganese electrolysis Download PDFInfo
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- CN103614741A CN103614741A CN201310597787.XA CN201310597787A CN103614741A CN 103614741 A CN103614741 A CN 103614741A CN 201310597787 A CN201310597787 A CN 201310597787A CN 103614741 A CN103614741 A CN 103614741A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a method of decreasing, reutilizing and circulating heavy metal wastewater in a subsequent section of electrolytic manganese electrolysis. The method comprises the following steps: preparing a solution, electrolyzing, discharging from a tank, inactivating and cleaning, wherein during the step of discharging from the tank, brushing and dripping are performed on the surface of a negative plate discharged from the tank, and the carried electrolyte is brushed and dripped back to an electrolytic tank, so that primary decrement is realized; during the step of inactivating, brushing and dripping are performed on the surface of the negative plate, and the inactivating solution is brushed and dripped back to an inactivating tank, so that secondary decrement is realized; during the step of cleaning, by virtue of multilevel cleaning equipment, cleaning is performed by adopting a multi-layered mode, so that tertiary decrement is realized, the cleaning water is gathered by virtue of a gathering unit after cleaning is finished, and the cleaning water is subjected to centralized processing and then returned back to the step of preparing the solution, so that the wastewater can be utilized circularly. The method provided by the invention has the advantages that the generation of wastewater is reduced, the output of source of wastewater is reduced, the repeated utilization of water resource is realized, the total clear water consumption is reduced, and the wastewater can be circulated in the main process by virtue of corresponding wastewater treatment equipment.
Description
Technical field
A kind of the present invention relates to heavy metal wastewater thereby decrement, use and circulate again method, the method for relate in particular to the follow-up workshop section of a kind of electrolytic manganese electrolysis heavy metal wastewater thereby decrement, using and circulate again, belongs to hydrometallurgy industry electrolytic manganese field.
Background technology
The acidic leaching that still U.S. mine office proposed in nineteen thirty-five that the production technique of China's electrolytic manganese industry mainly adopts at present, the hydrometallurgical processes of Neutral Electrolysis.Each operation of the follow-up workshop section of electrolysis still adopts manual mode of operation, and manual operation mutability is large, wayward.The follow-up workshop section of electrolytic manganese electrolysis mainly includes out groove, passivation, cleaning, dries, peels off, whole plate, polishing, cleaning, immersion liquid and enter groove operation, and wherein main waste water produces some position for going out groove, passivation and matting; Go out groove operation and utilize tradition driving lifting mode, can only simply complete negative plate is proposed from electrolyzer; Passivation procedure, with to go out groove operation identical, utilizes driving lifting multi-disc negative plate to immerse in passivating solution, and during the complete lifting of passivation, the passivating solution of carrying under one's arms in negative plate surface is dropped in ground with negative plate; Matting adopts manual operation water blast gun to rinse negative plate, and rinse dosage is uncontrollable, and waste water generation is large; Each main waste water produces some position and all shows as that waste water generation is large, heavy metal contamination is serious, and especially the heavy metal kind in waste water is many, content is high, it is complicated to produce some position, is the emphasis of electrolytic manganese industry heavy metal wastewater thereby generation.
Summary of the invention
The method that technical problem to be solved by this invention is to provide the follow-up workshop section of a kind of electrolytic manganese electrolysis heavy metal wastewater thereby decrement, uses and circulate again, has solved deficiency of the prior art, has reduced environmental pollution.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: the follow-up workshop section of a kind of electrolytic manganese electrolysis heavy metal wastewater thereby decrement, again with and the method for circulation, comprise the following steps: liquid processed, electrolysis, go out groove, passivation, cleaning; Described while going out groove step, use out groove electrolysis carrier fluid to cut down hairbrush, to going out groove negative plate surface, brush drop, the electrolytic solution brush drop of carrying under one's arms is returned in electrolyzer, recycle, realize decrement for the first time; During described passivation step, after negative plate passivation, use passivating solution brush drop hairbrush, drop is brushed on anticathode plate surface, passivating solution is brushed to drop and return in deactivation slot, recycles, and realizes decrement for the second time; During described cleaning step, utilize multilevel cleaning device, adopt multi-level mode to clean, the reduction of the water for cleaning of negative plate, realize decrement for the third time, cleaned rear recycling collection device rinse water is collected, after focusing on, be back to again liquid step processed, realize the recycle of waste water.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described in go out groove electrolysis carrier fluid cut down hairbrush be arranged on for promote with swap cathode plate go out groove mechanical on hand, and walk with going out groove mechanical hand.
Further, described, go out groove electrolysis carrier fluid and cut down in hairbrush, brush drop contact part (being hairbrush and negative plate contact part) is hydrophobicity hairbrush.
Further, focusing on of described rinse water comprises the following steps: the rinse water of collection is through preliminary equipment for separating liquid from solid, solid matter in rinse water is separated, rinse water after separation enters in ion-exchange processing device after neutralizing treatment, by heavy metal ion adsorbed separation such as the manganese in rinse water, chromium, selenium, the clear water after processing can be back in electrolysis liquid operation processed.
The invention has the beneficial effects as follows: by method of the present invention, can realize the follow-up workshop section of electrolytic manganese electrolysis heavy metal wastewater thereby decrement, use and circulation again, go out groove and passivation procedure and can reduce the generation of waste water, reduce wastewater sources generation, and can realizing water resources, matting repeatedly utilizes, reduce clear water total amount consumed, by corresponding wastewater treatment equipment, realize waste water circulation in main technique.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, the follow-up workshop section of a kind of electrolytic manganese electrolysis heavy metal wastewater thereby decrement, again with and the method for circulation, comprise the following steps: liquid processed, electrolysis, go out groove, passivation, cleaning; Described while going out groove step, use out groove electrolysis carrier fluid to cut down hairbrush, to going out groove negative plate surface, brush drop, the electrolytic solution brush drop of carrying under one's arms is returned in electrolyzer, recycle, realize decrement for the first time; During described passivation step, after negative plate passivation, use passivating solution brush drop hairbrush, drop is brushed on anticathode plate surface, passivating solution is brushed to drop and return in deactivation slot, recycles, and realizes decrement for the second time; During described cleaning step, utilize multilevel cleaning device, adopt multi-level mode to clean, the reduction of the water for cleaning of negative plate, realize decrement for the third time, cleaned rear recycling collection device rinse water is collected, after focusing on, be back to again liquid step processed, realize the recycle of waste water.
Describedly go out groove electrolysis carrier fluid and cut down hairbrush and be arranged on out groove mechanical on hand, and walk with going out groove mechanical hand.
Described, go out groove electrolysis carrier fluid and cut down in hairbrush, brush drop contact part is hydrophobicity hairbrush.
Focusing on of described rinse water comprises the following steps: the rinse water of collection is through preliminary equipment for separating liquid from solid, solid matter in rinse water is separated, rinse water after separation enters in ion-exchange processing device after neutralizing treatment, by heavy metal ion adsorbed separation such as the manganese in rinse water, chromium, selenium, the clear water after processing can be back in electrolysis liquid operation processed.
Embodiment 1
After electrolytic manganese electrolysis preorder workshop section completes, liquid processed, electrolysis, the specification of negative plate is 600mm * 800mm, on every negative plate, obtained about 3kg manganese, then carry out the groove that of negative plate, use out groove mechanical hand that negative plate is lifted out to electrolyzer, now, on negative plate with electrolytic solution 56mL, use is simultaneously arranged on out the groove mechanical groove electrolysis carrier fluid that goes out on hand and cuts down hairbrush, to going out groove negative plate surface, brush drop, the electrolytic solution brush drop of carrying under one's arms is returned in electrolyzer, recycle, the electrolytic solution ratio that brush drop returns is 50%, the circulation of elecrolyte of 28mL/piece is used, reduce the generation of waste water, then negative plate is put into deactivation slot and carried out passivation, after negative plate passivation, negative plate is lifted out to passivating solution, now, on negative plate with passivating solution 56mL/piece, use passivating solution brush drop hairbrush, drop is brushed on anticathode plate surface, passivating solution is brushed to drop and return in deactivation slot simultaneously, recycle, the passivating solution ratio that brush drop returns is 50%, and the passivating solution of 28mL/piece is recycled, and reduces the generation of waste water, finally carry out the cleaning of negative plate, utilize multilevel cleaning device, used altogether 2L/piece rinse water, reduce by 65% water for cleaning amount with conventional clean operation ratio, adopt multi-level mode to clean, after cleaning completes, recycling collection device collects rinse water, reclaimed the rinse water of 2L/piece, the rate of recovery of rinse water is 100%, after focusing on, be back to again liquid step processed, recycle, has realized waste water reuse, has both reduced the usage quantity of rinse water, also reduce the generation of heavy metal wastewater thereby, reduced environmental pollution.
Embodiment 2
After electrolytic manganese electrolysis preorder workshop section completes, liquid processed, electrolysis, the specification of negative plate is 550mm * 600mm, on every negative plate, obtained about 2.5kg manganese metal, then carry out the groove that of negative plate, use out groove mechanical hand that negative plate is lifted out to electrolyzer, now, on negative plate with electrolytic solution 25.5L/ ton electrolytic manganese, use is simultaneously arranged on out the groove mechanical groove electrolysis carrier fluid that goes out on hand and cuts down hairbrush, to going out groove negative plate surface, brush drop, the electrolytic solution brush drop of carrying under one's arms is returned in electrolyzer, recycle, the electrolytic solution ratio that brush drop returns is 70%, the circulation of elecrolyte of 25.5L/ ton electrolytic manganese is used, reduce the generation of waste water, then negative plate is put into deactivation slot and carried out passivation, after negative plate passivation, negative plate is lifted out to passivating solution, now, on negative plate with passivating solution 25.5L/ ton electrolytic manganese, use passivating solution brush drop hairbrush, drop is brushed on anticathode plate surface, passivating solution is brushed to drop and return in deactivation slot simultaneously, recycle, the passivating solution ratio that brush drop returns is 70%, and the passivating solution of 18L/ ton electrolytic manganese is recycled, and reduces the generation of waste water, finally carry out the cleaning of negative plate, utilize multilevel cleaning device, used altogether 0.6m
3/ ton electrolytic manganese rinse water, and conventional clean operation is than the water for cleaning amount that reduces 80%, adopts multi-level mode to clean, and has cleaned rear recycling collection device rinse water is collected, and has reclaimed 0.6m
3the rinse water of/ton electrolytic manganese, the rate of recovery of rinse water is 100%, after focusing on, then is back to liquid step processed, recycle, has realized waste water reuse, has both reduced the usage quantity of rinse water, has also reduced the generation of heavy metal wastewater thereby, has reduced environmental pollution.
Embodiment 3
After electrolytic manganese electrolysis preorder workshop section completes, liquid processed, electrolysis, the specification of negative plate is 600mm * 800mm, on every negative plate, obtained about 3kg manganese metal, then carry out the groove that of negative plate, use out groove mechanical hand that negative plate is lifted out to electrolyzer, now, on negative plate with electrolytic solution 56mL, use is simultaneously arranged on out the groove mechanical groove electrolysis carrier fluid that goes out on hand and cuts down hairbrush, to going out groove negative plate surface, brush drop, the electrolytic solution brush drop of carrying under one's arms is returned in electrolyzer, recycle, the electrolytic solution ratio that brush drop returns is 50%, the circulation of elecrolyte of 28mL/piece is used, reduce the generation of waste water, then negative plate is put into deactivation slot and carried out passivation, after negative plate passivation, negative plate is lifted out to passivating solution, now, on negative plate with passivating solution 56mL/piece, use passivating solution brush drop hairbrush, drop is brushed on anticathode plate surface, passivating solution is brushed to drop and return in deactivation slot simultaneously, recycle, the passivating solution ratio that brush drop returns is 50%, and the passivating solution of 28mL/piece is recycled, and reduces the generation of waste water, finally carry out the cleaning of negative plate, utilize multilevel cleaning device, used altogether 2L/piece rinse water, reduce by 65% water for cleaning amount with conventional clean operation ratio, adopt multi-level mode to clean, after cleaning completes, recycling collection device collects rinse water, reclaimed the rinse water of 2L/piece, the rate of recovery of rinse water is 100%, after focusing on, be back to again liquid step processed, recycle, has realized waste water reuse, has both reduced the usage quantity of rinse water, also reduce the generation of heavy metal wastewater thereby, reduced environmental pollution.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
- The follow-up workshop section of electrolytic manganese electrolysis heavy metal wastewater thereby decrement, again with and the method for circulation, comprise the following steps: liquid processed, electrolysis, go out groove, passivation, cleaning, it is characterized in that,Described while going out groove step, use out groove electrolysis carrier fluid to cut down hairbrush, to going out groove negative plate surface, brush drop, the electrolytic solution brush drop of carrying under one's arms is returned in electrolyzer, recycle;During described passivation step, after negative plate passivation, use passivating solution brush drop hairbrush, drop is brushed on anticathode plate surface, passivating solution is brushed to drop and return in deactivation slot, recycles;During described cleaning step, utilize multilevel cleaning device, adopt multi-level mode to clean, cleaned rear recycling collection device rinse water is collected, after focusing on, then be back to liquid step processed, recycle.
- According to claim 1 the follow-up workshop section of electrolytic manganese electrolysis heavy metal wastewater thereby decrement, again with and the method for circulation, it is characterized in that, go out groove electrolysis carrier fluid and cut down hairbrush and be arranged on out groove mechanical on hand, and walk with going out groove mechanical hand.
- According to claim 1 the follow-up workshop section of electrolytic manganese electrolysis heavy metal wastewater thereby decrement, again with and the method for circulation, it is characterized in that, described, go out groove electrolysis carrier fluid and cut down in hairbrush, brush drop contact part is hydrophobicity hairbrush.
- According to claim 1 the follow-up workshop section of electrolytic manganese electrolysis heavy metal wastewater thereby decrement, again with and circulation method, it is characterized in that, focusing on of described rinse water comprises the following steps: the rinse water of collection is through preliminary equipment for separating liquid from solid, solid matter in rinse water is separated, rinse water after separation enters in ion-exchange processing device after neutralizing treatment, by heavy metal ion adsorbed separation such as the manganese in rinse water, chromium, selenium, the clear water after processing can be back in electrolysis liquid operation processed.
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| CN201310597787.XA CN103614741A (en) | 2013-11-22 | 2013-11-22 | Method of decreasing, reutilizing and circulating heavy metal wastewater in subsequent section of electrolytic manganese electrolysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881199A (en) * | 2019-04-10 | 2019-06-14 | 深圳市铿东科技有限公司 | A kind of regenerating alkaline etching liquid and its copper recovery system |
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| JPS51147403A (en) * | 1975-06-12 | 1976-12-17 | Mitsubishi Heavy Ind Ltd | A process for treatment of solutions containing a minute quantity of m etals |
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| CN102249443A (en) * | 2011-04-27 | 2011-11-23 | 中信大锰矿业有限责任公司 | Method for recycling chromium from chromium passivation wastewater of electrolytic manganese factory |
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| CN102531243A (en) * | 2012-02-23 | 2012-07-04 | 湖南鼎中环保科技有限公司 | Zero-emission production process of electrolytic manganese wastewater |
| CN102534691A (en) * | 2012-03-09 | 2012-07-04 | 盐城市电子设备厂 | Three-layer device for tank exit, liquid brushing and storing and tank entry of manganese or zinc electrolytic cathode plate |
| CN102730884A (en) * | 2012-07-20 | 2012-10-17 | 广州市中绿环保有限公司 | Passivation waste liquor recycling device for electrolytic manganese industry and processing method of passivation waste liquor recycling device |
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2013
- 2013-11-22 CN CN201310597787.XA patent/CN103614741A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51147403A (en) * | 1975-06-12 | 1976-12-17 | Mitsubishi Heavy Ind Ltd | A process for treatment of solutions containing a minute quantity of m etals |
| CN201921861U (en) * | 2010-12-02 | 2011-08-10 | 湖北长阳宏信实业集团有限公司 | Vertical cleaning machine for electrolytic manganese polar plate |
| CN102249443A (en) * | 2011-04-27 | 2011-11-23 | 中信大锰矿业有限责任公司 | Method for recycling chromium from chromium passivation wastewater of electrolytic manganese factory |
| CN102534690A (en) * | 2011-12-31 | 2012-07-04 | 中国环境科学研究院 | Automatic processing method for follow-up working section for electrolyzing manganese and zinc through wet method |
| CN102531243A (en) * | 2012-02-23 | 2012-07-04 | 湖南鼎中环保科技有限公司 | Zero-emission production process of electrolytic manganese wastewater |
| CN102534691A (en) * | 2012-03-09 | 2012-07-04 | 盐城市电子设备厂 | Three-layer device for tank exit, liquid brushing and storing and tank entry of manganese or zinc electrolytic cathode plate |
| CN102730884A (en) * | 2012-07-20 | 2012-10-17 | 广州市中绿环保有限公司 | Passivation waste liquor recycling device for electrolytic manganese industry and processing method of passivation waste liquor recycling device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881199A (en) * | 2019-04-10 | 2019-06-14 | 深圳市铿东科技有限公司 | A kind of regenerating alkaline etching liquid and its copper recovery system |
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