A method for the treatment of tebuconazole pesticide production wastewater and the recovery of potassium sulfate resources
A technology for producing wastewater and treatment methods, which is applied in biological water/sewage treatment, natural water treatment, multi-stage water treatment, etc. It can solve the problems of ineffective resource recovery and poor treatment effect, and achieve excellent treatment effect and high COD. Removal rate and the effect of recycling
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Embodiment 1
[0039] This embodiment provides a method for treating tebuconazole pesticide production wastewater, in which effective recovery of potassium sulfate resources is carried out, and the treatment object is tebuconazole pesticide wastewater from a workshop of a pesticide enterprise in Binhai, Jiangsu. The process flow diagram of the present invention is as figure 1 As shown, the processing steps are as follows:
[0040] (1) Treatment of wastewater from ketene and condensation production section: including blow-off-micro-electrolysis-Fenton oxidation-neutralization precipitation treatment. The specific steps of the treatment process are:
[0041] a) Stripping: Collect the ketene from the tebuconazole pesticide preparation process in the workshop and the wastewater from the condensation production section separately into the collection tank, pump the wastewater into the stripping tower, and strip it at 60°C for 2 hours.
[0042] b) Micro-electrolysis: The waste water is pumped into the ir...
Embodiment 2
[0063] This embodiment provides a method for the treatment of tebuconazole pesticide production wastewater, in which effective recovery of potassium sulfate resources is carried out, and the treatment object is tebuconazole pesticide wastewater from a workshop of a pesticide company in Binhai, Jiangsu. The combined treatment process steps are as follows:
[0064] (1) Treatment of wastewater from ketene and condensation production sections. The treatment process includes the following steps:
[0065] a) Blowing off: After collecting the ketene from the tebuconazole pesticide preparation process in the workshop and the wastewater from the condensation production section separately into the collection tank, pump the waste water in the collection tank into the blowing off tower at 70℃ Blow off for 4h.
[0066] b) Micro-electrolysis: use a pump to pump water into the iron-carbon micro-electrolysis kettle, first adjust the pH of the wastewater to 3 with sulfuric acid, and then add cast ir...
Embodiment 3
[0080] This embodiment provides a method for the treatment of tebuconazole pesticide production wastewater, in which effective recovery of potassium sulfate resources is carried out, and the treatment objects are the same as in embodiment 2. The combined treatment process steps in this embodiment are as follows:
[0081] (1) Treatment of wastewater from ketene and condensation production sections. The treatment process includes the following steps:
[0082] a) Blowing off: After collecting the ketene from the tebuconazole pesticide preparation process and the wastewater from the condensation production section in the workshop separately into the collection tank, pump the waste water in the collection tank into the blowing off tower at 65℃ Blow off for 3h.
[0083] b) Micro-electrolysis: Then pump the water into the iron-carbon micro-electrolysis kettle, first adjust the pH of the wastewater to 4 with sulfuric acid, then add cast iron powder to the wastewater and mechanically stir for...
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Abstract
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