摘要
以某市某新建的大型农药制造厂污水处理站UASB系统为例,介绍了UASB系统的工程设计、工程建设、工程调试、工程运行,以及所遇困难分析和解决方案,通过合理设计调试计划,精准调节运行参数和精心制定甲烷化/反硝化耦合方案,经处理后的农药化工废水,COD从15000~16000 mg/L降至1000~1500 mg/L;TN从100~120 mg/L降至10~15 mg/L;NH_(3)-N从80~100 mg/L降至5~10 mg/L;COD、TN和NH_(3)-N最大去除效率分别可达到90%,91.5%和95%;实现了UASB系统的启动、调试、运行以及甲烷化/反硝化过程的耦合,并形成了内部是产甲烷菌,外层是反硝化细菌的颗粒污泥,达到了预期效果。本文涉及的参数及方法可为类似工程调试和运行提供参考。
Taking UASB system of a newly-established large-scale pesticide manufacturing plant′s wastewater treatment station in a certain city as a case study,on the engineering design,engineering construction,engineering commissioning,engineering operation of the UASB system were elaborated.Additionally,an analysis of challenges encountered was provided during the process along with corresponding solutions.Through meticulous planning of the commissioning strategy,precise adjustment of operational parameters,and detailed formulation of the methanogenesis/denitrification coupling technical protocols,operational data of pesticide and chemical wastewater after treatment were as follows:the concentrations of COD were reduced from 15000 to 16000 mg/L to 1000 to 1500 mg/L,the concentrations of TN were reduced from 100 to 120 mg/L to 10 to 15 mg/L,the concentrations of NH_(3)-N were reduced from 80 to 100 mg/L to 5 to 10 mg/L.The maximum removal efficiency of COD,TN and NH_(3)-N could reach 90%,91.5%and 95%,respectively.The start-up,commissioning,operation and coupling of methanation and denitrification process in UASB system were realized,which formed a granular sludge with methanogenic bacteria inside and denitrifying bacteria outside.The expected effect was achieved.The parameters and methods involved in this paper can provide reference for the debugging and start-up of similar projects.
作者
余楷
夏兵
杨建飞
陈兆银
YU Kai;XIA Bing;YANG Jianfei;CHEN Zhaoyin(Liaoning Youchuang Crop Protection Co.,Ltd.,Liaoning Huludao 125000;Jiangsu Yangnong Chemical Co.,Ltd.,Jiangsu Yangzhou 225000,China)
出处
《广州化工》
2026年第2期169-173,共5页
GuangZhou Chemical Industry
关键词
农药化工废水
UASB
甲烷化和反硝化耦合
pesticide chemical wastewater
UASB
coupling methanation and denitrification
