零价铁类芬顿耦合固定化微生物工艺处理农药制剂废水工程实例

Project Cases of the Zero-Valent Iron Fenton-Like Coupled Immobilized Microbial Process Treating Wastewater from Pesticide Preparations

农药行业是化工污染大户,也是治理难度最大、投资最多的行业,随着国家农业产业的不断发展,农药产品和产量随之不断增加,很多防治污染工作落实不到位又增加很多新污染,尤其废水污染,不仅造成生态环境污染,还会给人类带来严重危害。农药废水毒性大、污染物成分复杂且浓度高,其化学需氧量可达到每升数万毫克。废水外排的污染问题得不到有效治理,企业将面临被迫停产的境地。该文通过采用零价铁类芬顿耦合固定化微生物处理工艺,处理农药企业的高浓度生产废水,结果表明:该耦合工艺系统处理效果理想、运行稳定,且工艺操作简单,为高浓度农药制剂废水的处理提供一种新的工艺思路和工程应用参数。

The pesticide industry is a major chemical polluter,and it is also the industry with the greatest difficulty in treatment and the largest investment.With the continuous development of the national agricultural industry,pesticide products and production continue to increase,much new pollution increases after the implementation of much pollution prevention and control work,and especially wastewater pollution not only causes ecological environment pollution,but also brings serious harm to human beings.Pesticide wastewater has high toxicity and complex and high-concentration pollutant compositions,and its chemical oxygen demand can reach tens of thousands of mg/L.If the pollution problem of wastewater discharge is not treated,enterprises will face the situation of being forced to stop production.This paper adopts the zero-valent iron Fenton-like coupled immobilized microbial treatment process to treat high-concentration production wastewater from pesticide enterprises.The results show that the coupled process system has ideal treatment effect,stable operation and simple operation,which provides a new process idea and engineering application parameters for the treatment of wastewater from high-concentration pesticide preparations.