Novel pyrethroid pesticide wastewater treatment process
A pesticide wastewater and treatment process technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, water pollutants, etc., can solve the problem of high risk, inability to remove harmful substances well, high investment cost, etc. problems, to achieve the effects of reducing equipment investment and operating costs, improving the biochemical properties of wastewater, and lowering the requirements for operators
Inactive Publication Date: 2022-04-12
广东智环创新环境科技有限公司
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Problems solved by technology
[0003] Evaporation process: the energy consumption required for evaporation is extremely high, which can reach more than 200 yuan / ton of water; because the salt content in the wastewater is too high, the requirements for the material of the evaporator are extremely high, and ordinary evaporators cannot meet the requirements, and the service life of general evaporators is not long ;Evaporation process has strict requirements on operators and is dangerous; Evaporation process generally needs supporting boilers, and the investment cost is high
Advanced oxidation and other oxidation processes: the removal rate of pollutants is not high, and harmful substances cannot be removed well, and the amount of chemicals added is very large, the cost is high, and the salt content introduced is also high
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[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] A treatment process for novel pyrethroid pesticide wastewater, comprising the following steps:
[0019] S1, mix the pyrethroid wastewater evenly in the sump;
[0020] S2. Elevate the waste water to the acid analysis reaction tank, add 98% concentrated sulfuric acid to the acid analysis reaction tank to adjust the pH between 2-3, the pyrethroids will automatically precipitate in the form of gas under acidic conditions, greatly reducing the Remove the toxic components in the wastewater, and create acidic conditions for the ele...
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The invention discloses a novel pyrethroid pesticide wastewater treatment process, and belongs to the technical field of pesticide wastewater treatment. According to the method, concentrated sulfuric acid is adopted for treatment, part of pollutants in the pyrethroid wastewater are removed, part of oil and suspended solids are removed after the pyrethroid wastewater subjected to acidification treatment passes through a filtering device, the filtered pyrethroid wastewater is subjected to electro-catalysis treatment through a ruthenium-iridium electrode, the PH of the effluent subjected to electro-catalysis is adjusted to be neutral, and the effluent subjected to electro-catalysis treatment is discharged. The method has a good treatment effect on the pyrethroid pesticide wastewater, and can meet the water inlet requirement (B / C is greater than 0.3) of the existing biochemical sewage treatment.
Description
technical field [0001] The invention relates to the technical field of pesticide wastewater treatment, in particular to a treatment process for novel pyrethroid pesticide wastewater. Background technique [0002] At present, the treatment of pyrethroid pesticide wastewater mainly relies on evaporation process, chemical oxidation technology or mixed dilution with other wastewater for pretreatment. [0003] Evaporation process: the energy consumption required for evaporation is extremely high, which can reach more than 200 yuan / ton of water; because the salt content in the wastewater is too high, the requirements for the material of the evaporator are extremely high, and ordinary evaporators cannot meet the requirements, and the service life of general evaporators is not long ; Evaporation process has strict requirements on operators and is very dangerous; evaporation process generally needs supporting boilers, and the investment cost is high. Advanced oxidation and other oxi...
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Login to View More IPC IPC(8): C02F9/14C02F101/30C02F101/34C02F101/36C02F101/38
Inventor 高文迪张文平黄顺攀
Owner 广东智环创新环境科技有限公司