Abstract:

According to the characteristics of high variation of water quality，high concentration and good biodegradability，the main process of a certain 40 000 m³/d wastewater with improved Bardenpho+BAF+Flocculation sedimentation tank+V-filter+Sodium hypochlorite disinfection was used to meet the “Municipal Sewage Treatment Plant Pollutant discharge Standard”（GB 18918—2002） first class A standard. The process flow，design parameters of each treatment unit and process characteristics were introduced in detail. Since March 2018，the current operation treatment effect was very ideal，and the COD，NH₃-N，TN，TP removal rates reached 98.66%，98.80%，90.43%，98.90%，respectively. The effluent quality indexes were stable and met the standard.

Key words: seafood processing, high ammonia nitrogen, nitrogen and phosphorus removal, improved Bardenpho, biological aerated filter

摘要：

根据海产品废水水质水量变化大、水质浓度高、可生化性好的特点，确定某40 000 m³/d海产品废水主工艺采用改良Bardenpho+曝气生物滤池（BAF）+絮凝沉淀池+V型滤池+次氯酸钠消毒，达到《城镇污水处理厂污染物排放标准》（GB 18918－2002）一级A标准。详细介绍了处理工艺流程、各处理单元的设计参数和工艺特点。自2018年3月正式运行以后，处理效果非常理想，COD、NH₃-N、TN、TP去除率分别达到98.66%、98.80%、90.43、98.90%，出水各项指标稳定达到标准。

关键词: 海产品加工, 高氨氮, 脱氮除磷, 改良Bardenpho, 曝气生物滤池

CLC Number: 

• TU992