摘要
从炼油厂污水处理场进水水质调查结果来看,氨回收净化水是污水处理场氨氮主要污染源。为使炼油厂外排污水氨氮达标,必需提高氨回收装置的脱氮率、解决好氨水的出路,并提出 A/O 生物膜法脱氮、氧化沟脱氮、程序控制间歇式活性污泥法脱氮等技术,对氨回收净化水进行再处理,再用二次生化和氧化塘把关可以确保排放污水氨氮达标。
According to the monitored results of water quality at the inlet of waste- water treatment facility,one of the main NH_3-N pollutant resources is the di- schaged water from NH_3 recovery unit.In order to meet the specification for NH_3-N content in refinery wastewater,several approaches are discussed:in- creasing the denitrogenation rate of NH_3 recovery unit;utilizing the NH_3 so- lution;denitrogenation by use of A/O biological film,oxidation trench、pro- gram controlled activated slurry(in batch operation);secondary treatment for the wastewater from NH_3 recovery unit;utilization of secondary biological and oxidation basin as the final treatment to ensure the specified NH_3-N cont- ent.
出处
《石油化工环境保护》
1992年第2期33-39,共7页
Environment Protection in Petrochemical Industry
