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Pesticide chemical wastewater treatment process

A technology of chemical wastewater and treatment process, which is applied in the direction of special compound water treatment, oxidized water/sewage treatment, multi-stage water treatment, etc. It can solve the problems of complex pollutant composition, high operating cost, and poor treatment effect, and achieve reduction The workload of investment and construction, the effect of reducing labor intensity and land occupation, and simplifying daily management

Active Publication Date: 2018-03-09
ANHUI HUAXING CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (2) The composition of pollutants is complex
[0005] (3) There are many difficult biodegradable substances
[0006] (4) The discharge of waste water per ton of product is large, and due to unstable production process, operation management and other issues, the water quality and quantity of waste water are unstable, which brings certain difficulties to the treatment of waste water
[0007] Although most domestic pesticide factories have established wastewater treatment devices, due to the poor treatment effect, the conventional pretreatment plus biochemical secondary treatment method occupies a large area and high operating costs
Therefore, it is difficult to ensure that all facilities can operate normally. It is urgent to develop and promote new wastewater treatment methods with simple treatment methods, low operating costs and good treatment effects.

Method used

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Effect test

Embodiment 1

[0035] The technical problem to be solved by the present invention adopts the following technical solutions to realize:

[0036] Pesticide chemical wastewater treatment process: Pesticide chemical wastewater treatment process includes the following processes:

[0037] PH adjustment, micro-electrolysis, catalytic oxidation, LBQ-first-level aerobic, LBQ-ABR anaerobic, LBQ-secondary aerobic, AOP, biological aerated filter, deep oxidation;

[0038] 1. High-ammonia-nitrogen wastewater is collected separately for deamination, using negative pressure deamination or normal temperature blowing deamination, and then performing physical and chemical pretreatment, and biochemical process for wastewater treatment. After treatment, the effluent ammonia nitrogen is 731-1341mg / L;

[0039]2. After adding 2% mass percentage of hydrogen peroxide (concentration content is 20%), the cyanide-containing wastewater is pumped into the catalytic micro-electrolysis tower with a flow rate of 200 ml / hour,...

Embodiment 2

[0052] The technical problem to be solved by the present invention adopts the following technical solutions to realize:

[0053] Pesticide chemical wastewater treatment process: Pesticide chemical wastewater treatment process includes the following processes:

[0054] PH adjustment, micro-electrolysis, catalytic oxidation, LBQ-first-level aerobic, LBQ-ABR anaerobic, LBQ-secondary aerobic, AOP, biological aerated filter, deep oxidation;

[0055] 1. High-ammonia-nitrogen wastewater is collected separately for deamination, using negative pressure deamination or normal temperature blowing deamination, and then performing physical and chemical pretreatment, and biochemical process for wastewater treatment. After treatment, the effluent ammonia nitrogen is 731-1341mg / L;

[0056] 2. After adding 3% mass percent hydrogen peroxide (concentration content is 25%), the cyanide-containing wastewater is pumped into the catalytic micro-electrolysis tower with a flow rate of 200 ml / hour, and ...

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Abstract

The invention discloses a pesticide chemical wastewater treatment process, and relates to the technical field of wastewater treatment. The pesticide chemical wastewater treatment process includes thesteps: PH (potential of hydrogen) adjustment; micro-electrolysis; catalytic oxidation; LBQ-primary aerobic treatment; LBQ-ABR anaerobic treatment; LBQ-secondary aerobic treatment; AOP; biological aerated filter; deep oxidation. The pesticide chemical wastewater treatment process more effectively, more rapidly and more environmentally treats chemical wastewater, harm of the wastewater to environments and humans is decreased, everything is full of vitality, the process actively responds to the national policy of strict requirements on environmental protection in recent years, and existing wastewater treatment facilities are upgraded and rebuilt. After technological upgrading and rebuilding, a wastewater treatment station can stably and efficiently run, running cost is reduced, and automationdegree is high.

Description

Technical field: [0001] The invention relates to the technical field of wastewater treatment, in particular to a treatment process for wastewater generated by pesticide and chemical enterprises. Background technique: [0002] At present, the pollution of the pesticide industry mainly comes from the wastewater discharged during the production process. According to statistics, the national pesticide industry discharges about 150 million tons of wastewater every year, mainly from the drainage during the production process, product washing water, equipment and cleaning water on the workshop floor. Wait. Wastewater from the pesticide industry has the following characteristics: [0003] (1) The concentration of organic matter is high and the toxicity is great. The COD of synthetic wastewater is generally above tens of thousands of mg / L, sometimes even as high as hundreds of thousands of mg / L. [0004] (2) The composition of pollutants is complex. Taking the production wastewat...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/36
CPCC02F1/283C02F1/46176C02F1/4672C02F1/722C02F1/725C02F1/76C02F3/106C02F3/2806C02F9/00C02F2103/36C02F2301/08C02F2305/026
Inventor 王玉贵庆光平尹仕兵付昌群吴春喜
Owner ANHUI HUAXING CHEM IND CO LTD
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