CN204550267U - A kind of containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment - Google Patents

A kind of containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment Download PDF

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Publication number
CN204550267U
CN204550267U CN201520061956.2U CN201520061956U CN204550267U CN 204550267 U CN204550267 U CN 204550267U CN 201520061956 U CN201520061956 U CN 201520061956U CN 204550267 U CN204550267 U CN 204550267U
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CN
China
Prior art keywords
pond
waste water
nmp
pyrrolidone
water treatment
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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.)
Expired - Fee Related
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CN201520061956.2U
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Chinese (zh)
Inventor
涂凯
赵英武
彭金胜
刘巍
吴昊
王川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI ENERGY CONSERVATION OF ENVIRONMENT Co Ltd
Shanghai Qingwet Environmental Protection Technology Co Ltd
Original Assignee
SHANGHAI ENERGY CONSERVATION OF ENVIRONMENT Co Ltd
Shanghai Qingwet Environmental Protection Technology Co Ltd
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Application filed by SHANGHAI ENERGY CONSERVATION OF ENVIRONMENT Co Ltd, Shanghai Qingwet Environmental Protection Technology Co Ltd filed Critical SHANGHAI ENERGY CONSERVATION OF ENVIRONMENT Co Ltd
Priority to CN201520061956.2U priority Critical patent/CN204550267U/en
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Publication of CN204550267U publication Critical patent/CN204550267U/en
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  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The utility model discloses a kind of containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it comprises, and the wastewater collection pond (1), acidification reaction pond (2), Fenton oxidation pond (3), the PH that connect successively adjust pond (4), flocculation basin (5), mixed solution leave standstill pond (6), plate-and-frame filter press (7), intermediate pool (8), deep bed filter (9), accurate filter (10); First lithium electricity factory effluent is collected through workshop pipeline and is entered wastewater collection pond, after wastewater collection pond arranges simple and easy grid removal macrobead rubbish suspended substance, acidified pond, Fenton oxidation pond, PH adjustment pond, flocculation basin, mixed solution leave standstill pond, plate-and-frame filter press press filtration process successively, filtrate enters intermediate pool, intermediate pool water outlet is more successively through deep bed filter, accurate filter filtration treatment, Chinese effluent after filtering, the dewatered sludge pack process after filter press.The utility model is for the Cleaning Wastewater obvious processing effect of discharging in pulping process in lithium cell production industry, and simple to operate, operational management is safe and reliable.

Description

A kind of containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment
Technical field
The utility model relates to a kind of containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment.
Background technology
Certainly will have a small amount of waste water in Production Process of Lithium Battery to discharge, the positive and negative electrode pulping process process particularly in Production Process of Lithium Battery, can use the starting material such as NMP (methyl-2-pyrrolidone), Graphite Powder 99, carbon dust in pulping process, therefore slurrying terminates to be bound to containing NMP in the Cleaning Wastewater of rear cleaning pulping tank discharge, SS (carbon dust, Graphite Powder 99) etc. pollution substance, utilize the chemical process of traditional coagulating sedimentation effectively can remove SS (Graphite Powder 99 in waste water, carbon dust) etc. material, but organism (CODcr) is often difficult to up to standard, in addition, due in Production Process of Lithium Battery, the water yield of this class waste water is usually very little, larger by the method floor space of traditional anaerobism+aerobic treatment, input cost is higher, and NMP (methyl-2-pyrrolidone) this organism finds the non-constant of its biochemical through lab scale, be not easy biological degradation, therefore a kind of composite processing system of necessary exploitation, the materials such as the SS in waste water can be got rid of and also can remove organism in water.
Summary of the invention
The purpose of this utility model is that the waste water containing the pollution substance such as organism and SS such as NMP for discharging in lithium cell production industry provides that a kind of technique is simple, treatment effect stablizes composite processing system.
The technical solution of the utility model is as follows:
One described in the utility model is containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, and it mainly includes, and the wastewater collection pond (1), acidification pool (2), Fenton oxidation pond (3), the PH that connect successively adjust pond (4), flocculation tank (5), mixed solution leave standstill pond (6), plate-and-frame filter press (7), intermediate pool (8), deep bed filter (9), accurate filter (10).
Wastewater collection pond (1) described in the utility model, it is provided with a set of Simple mechanical grid and is used for retaining macrobead rubbish foreign matter in removal waste water, prevents from entering subsequent handling block pumps or pipeline;
Be provided with floating ball lever meter (29) 1 in wastewater collection pond (1) described in the utility model to overlap, in wastewater collection pond, waste water can be promoted to acidification pool (2) by waste water lifting pump (12) automatically according to height of liquid level;
Acidification reaction pond (2) described in the utility model, Fenton oxidation pond (3), PH adjust pond (4), flocculation tank (5), these 4 reaction tanks are connected successively, a stirrer (13-16) is provided with in the middle of each reaction tank, the mode UNICOM of upper entering and lower leaving, bottom in and top out is utilized between each pond, flocculation tank (5) is left standstill pond with mixed solution and is connected by pipeline, and 4 reaction tank each reaction tank residence time are 20mim;
Be provided with online PH in acidification reaction pond (2) described in the utility model and count (32) 1 covers, sulfuric acid chemicals dosing plant (19,24) 1 cover, reaction stirrer (13) 1 cover, chain control is fed back by online PH meter and sulfuric acid chemicals dosing plant, realize sulfuric acid Automatic Dosing, ensure that acidification pool (2) interior PH is within 2-4 scope;
Reaction stirrer (14) 1 cover, ferrous sulfate chemicals dosing plant (20,25) 1 cover is provided with in Fenton oxidation pond (3) described in the utility model, hydrogen peroxide chemicals dosing plant (21,26) 1 overlaps, and ferrous sulfate chemicals dosing plant and hydrogen peroxide chemicals dosing plant all link with waste water lifting pump (12);
PH described in the utility model adjusts in pond (4) and is provided with online PH meter (33) 1 cover, liquid caustic soda chemicals dosing plant (22,27) 1 overlaps, reaction stirrer (15) 1 overlaps, chain control is fed back by online PH meter and liquid caustic soda chemicals dosing plant, realize liquid caustic soda Automatic Dosing, ensure that PH adjusts pond (4) interior PH within 8-9 scope;
Being provided with PAM chemicals dosing plant (23,28) 1 in flocculation tank described in the utility model (5) to overlap, react stirrer (16) 1 cover, making flocculation basin reflect best results by controlling to add PAM flocculation agent dose size;
Mixed solution described in the utility model leaves standstill in pond (6) and is provided with floating ball lever meter (30) 1 cover, and the mixed solution that mixed solution leaves standstill in pond can be processed to plate-and-frame filter press (7) by pneumatic diaphragm pump (17) automatic lifting according to height of liquid level;
Filtrate after plate-and-frame filter press described in the utility model (7) press filtration enters intermediate pool (8) through pipeline self, and the dewatered sludge pack after press filtration transfers to professional solidification disposal of waste company to dispose;
Be provided with floating ball lever meter (31) 1 in intermediate pool described in the utility model (8) to overlap, intermediate pool lift pump (18) 2, intermediate pool lift pump (18) and floating ball lever meter (31) chain control realize highly opening low stopping;
Deep bed filter described in the utility model (9) is the filter bag of 1um built with pore size filter, can be retained the suspended matter removed particle diameter and be greater than more than 1um by filter bag, and after filtering, water outlet enters accurate filter filtration;
Accurate filter described in the utility model (10) is the PP fabric filter element of 0.5um built with pore size filter, can be retained the suspended matter removed particle diameter and be greater than more than 0.5um by filter element filtering, produces water discharge after filtering;
The utility model is applicable to the process of the waste water containing pollution substances such as organism and SS such as NMP discharged in lithium cell production industry, has compact construction, takes up an area few, installs simple to operate, the feature that operating performance is stable.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present utility model;
In figure:
(1)-wastewater collection pond
(2)-acidification pool
(3)-Fenton oxidation pond
(4)-PH adjusts pond
(5)-flocculation tank
(6)-mixed solution leaves standstill pond
(7)-plate-and-frame filter press
(8)-intermediate pool
(9)-deep bed filter
(10)-accurate filter
(11)-Simple mechanical grid
(12)-waste water lifting pump
(13)-acidification pool reaction stirrer
(14)-Fenton oxidation pond stirrer
(15)-PH adjusts pond stirrer
(16)-flocculation tank stirrer
(17)-mud pneumatic diaphragm pump
(18)-intermediate pool lift pump
(19)-sulfuric acid medicine-adding bin
(20)-ferrous sulfate medicine-adding bin
(21)-hydrogen peroxide medicine-adding bin
(22)-liquid caustic soda medicine-adding bin
(23)-PAM medicine-adding bin
(24)-sulfuric acid dosing pump
(25)-ferrous sulfate dosing pump
(26)-hydrogen peroxide dosing pump
(27)-liquid caustic soda dosing pump
(28)-PAM dosing pump
(29)-wastewater collection pond floating ball lever meter
(30)-mixed solution leaves standstill pond floating ball lever meter
(31)-intermediate pool floating ball lever meter
(32) the online PH meter of-acidification pool
(33)-PH adjusts the online PH meter in pond
Embodiment
Below in conjunction with accompanying drawing, the utility model technology contents is explained:
As shown in Figure 1, one described in the utility model is containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it mainly includes, and the wastewater collection pond (1), acidification pool (2), Fenton oxidation pond (3), the PH that connect successively adjust pond (4), flocculation tank (5), mixed solution leave standstill pond (6), plate-and-frame filter press (7), intermediate pool (8), deep bed filter (9), accurate filter (10), also comprise other auxiliary facilities (11-33).
Below in conjunction with concrete engineering example, process implementing of the present utility model is described;
Hangzhou power Science and Technology Ltd. lithium cell production waste is processed.The concrete water quality of sewage is as following table 1:
Table 1: raw water quality table
Produce slurrying Cleaning Wastewater in lithium electricity production process and be first disposed to wastewater collection pond (1) through workshop pipeline collection gravity flow, be provided with simple and easy grid (11) in wastewater collection pond (1) and remove macrobead rubbish foreign matter in waste water for retaining, prevent from entering subsequent handling block pumps or pipeline, wastewater collection pond (1) interior waste water promotes successively acidified pond (2) through waste water lifting pump (12), Fenton oxidation pond (3), PH adjusts pond (4), flocculation tank (5), add sulfuric acid respectively to acidification pool (2) makes PH in acidification pool remain within 2-4 scope simultaneously, ferrous sulfate and hydrogen peroxide is added to Fenton oxidation pond (3), adding liquid caustic soda to PH adjustment pond makes PH in PH adjustment pond remain within 8-9 scope, in flocculation tank, add PAM medicament ensure that flocculating effect is best, after flocculation, mixed solution gravity flow enters mixed solution and leaves standstill pond (6), the mixed solution that mixed solution leaves standstill in pond is promoted to plate-and-frame filter press (7) press filtration through mud pneumatic diaphragm pump (17), after press filtration, filtrate is from flowing to intermediate pool (8), dewatered sludge pack after press filtration transfers to professional solidification disposal of waste company to dispose, intermediate pool (8) water outlet is promoted to deep bed filter (9) through intermediate pool lift pump (18) and filters, after filtering, water outlet enters accurate filter (10) filtration, produce water after final filtration to arrange outward.
Sewage runs treatment effect as following table 2 by these processing condition:
Table 2: effluent quality table after process
Project Raw water quality Water outlet after process Clearance
PH 6-9 8-9 -
COD 1758mg/L (surveying after filtering) 303 82.7%
SS 1600mg/L 12 99.2%
Water outlet is now satisfied reaches the requirement of " integrated wastewater discharge standard " (GB8978-1996)-Na tube drainage.And the utility model sewage disposal is simple to operate, operating performance is stablized, and the contaminant removal efficiency such as COD, SS are high, and operational management is convenient.
As mentioned above, embodiment of the present utility model is explained, but as long as do not depart from inventive point of the present utility model in fact and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation is also all included within protection domain of the present utility model.

Claims (10)

1. one kind contains methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it is characterized in that, mainly include: the wastewater collection pond (1) connected successively, acidification pool (2), Fenton oxidation pond (3), PH adjustment pond (4), flocculation tank (5), mixed solution leave standstill pond (6), plate-and-frame filter press (7), intermediate pool (8), deep bed filter (9), accurate filter (10).
2. according to claim 1 containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it is characterized in that, in described wastewater collection pond (1), be provided with simple waste grid (11), diving lift pump (12), floating ball lever meter (29).
3. according to claim 1 containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it is characterized in that, be provided with online PH in described acidification pool (2) and count (32), reaction stirrer (13), sulfuric acid chemicals dosing plant (19,24).
4. according to claim 1 containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it is characterized in that, in described Fenton oxidation pond (3), be provided with reaction stirrer (14), ferrous sulfate chemicals dosing plant (20,25), hydrogen peroxide chemicals dosing plant (21,26).
5. according to claim 1 containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it is characterized in that, described PH adjusts in pond (4) and is configured with online pH meter (33), reaction stirrer (15), liquid caustic soda chemicals dosing plant (22,27).
6. according to claim 1 containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it is characterized in that, in described flocculation tank (5), be configured with reaction stirrer (16), PAM chemicals dosing plant (23,28).
7. according to claim 1 containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it is characterized in that, described mixed solution leaves standstill in pond (6) and configures floating ball lever meter (30).
8. according to claim 1 containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it is characterized in that, mixed solution is left standstill between pond (6) with plate-and-frame filter press (7) and is connected by pneumatic diaphragm pump (17).
9. according to claim 1ly to it is characterized in that containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, configuration floating ball lever meter (31) in described intermediate pool (8), diving lift pump (18).
10. according to claim 1 containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment, it is characterized in that, in described deep bed filter (9), be configured with the filter bag that precision is 1um.
CN201520061956.2U 2015-01-29 2015-01-29 A kind of containing methyl-2-pyrrolidone (NMP) lithium electricity Waste Water Treatment Expired - Fee Related CN204550267U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105293782A (en) * 2015-11-26 2016-02-03 安徽中环环保科技股份有限公司 System for treating and recycling waste water resulting from lithium battery production
CN106865896A (en) * 2017-03-13 2017-06-20 苏州宜科环保工程有限公司 A kind of lithium battery production wastewater treatment system
CN108083515A (en) * 2018-02-06 2018-05-29 美尚生态景观股份有限公司 A kind of gardens organic mat production process generates the processing system of waste water
CN108675569A (en) * 2018-07-13 2018-10-19 苏州爱源环境工程技术服务有限公司 A kind of Lithium Battery Industry purification method for effluent
CN109264939A (en) * 2018-12-06 2019-01-25 湖南大辰环保科技有限公司 The processing method and system of Lithium Battery Industry production waste water
CN110436593A (en) * 2019-08-16 2019-11-12 金为环保科技(常州)有限公司 A method of N methyl pyrrolidone in recycling Anode of lithium cell waste liquid
CN110894125A (en) * 2019-09-25 2020-03-20 镇江新纳环保材料有限公司 Sewage treatment process for recycling N-methyl pyrrolidone

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105293782A (en) * 2015-11-26 2016-02-03 安徽中环环保科技股份有限公司 System for treating and recycling waste water resulting from lithium battery production
CN106865896A (en) * 2017-03-13 2017-06-20 苏州宜科环保工程有限公司 A kind of lithium battery production wastewater treatment system
CN108083515A (en) * 2018-02-06 2018-05-29 美尚生态景观股份有限公司 A kind of gardens organic mat production process generates the processing system of waste water
CN108675569A (en) * 2018-07-13 2018-10-19 苏州爱源环境工程技术服务有限公司 A kind of Lithium Battery Industry purification method for effluent
CN109264939A (en) * 2018-12-06 2019-01-25 湖南大辰环保科技有限公司 The processing method and system of Lithium Battery Industry production waste water
CN110436593A (en) * 2019-08-16 2019-11-12 金为环保科技(常州)有限公司 A method of N methyl pyrrolidone in recycling Anode of lithium cell waste liquid
CN110894125A (en) * 2019-09-25 2020-03-20 镇江新纳环保材料有限公司 Sewage treatment process for recycling N-methyl pyrrolidone

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150812

Termination date: 20160129

EXPY Termination of patent right or utility model