摘要
用水解酸化-好氧工艺模拟炼油废水生化处理系统,在二沉池中加入软性纤维填料后,不但使泥水分离效果更好,而且可起到反硝化脱氮的功能,改进了脱氮工艺的传统方式,弥补了由于原工艺中构筑物的原因造成废水无法回流脱氮的缺陷。二沉池中反硝化工艺研究表明,当供给适量C源、DO<1mg/L、温度在25℃-40℃时,NOx-N降解率可达75％～90％。出水COD、oiL等各污染指标均达到国家和DB44/56-92地方排放标准。
The improved secondary semidentahon of the pilot sewage treatment plant in H - O treatment process Served the function of breaking down NOx - N. The experiment results showed that providing the sewage with sufficient carbon resource 75%-90% of NOx -N can be broken down when DO<1mg/L and the temperture is between 25℃-40℃. Finally the pollation index of effluent(such as COD、oil etc. ) can meet the national local water standard DB 44/56 - 92.
出处
《石油化工环境保护》
2003年第1期23-25,共3页
Environment Protection in Petrochemical Industry
