乙酸盐对废水生物脱氮除磷影响的研究  

Effect of Acetate on Biological Removal of Phosphorus and Nitrogen

作　　者：周岳溪[1] 

机构地区：[1]中国环境科学研究院

出　　处：《环境科学》1994年第1期82-84,共3页Environmental Science

摘　　要：考察了乙酸盐（钠）含量对循序间歇式废水生物脱氮除磷工艺的氮、磷去除效果及污泥沉降性能的影响。试验结果表明，废水中乙酸盐（钠）含量对ＰＯ扩Ｐ、ＮＯ－Ｎ去除效果的影响较ＮＨ－Ｎ的明显。随着乙酸盐（钠）浓度的增加，ＰＯ－Ｐ及ＮＯ－Ｎ的去除率相应提高。乙酸盐（钠）的最低起始浓度为１２５ｍｍ／Ｌ，但超过２１５ｍｇ／Ｌ后，便产生污泥膨胀现象。n this paper, the effects of acetate on biological Nand P removal rates and activated sludge settleabilitywere studied. A sequential biological batch reactor(SBR) was used. Experimental results demonstratethat: Acetate has morde effects on PO- P andNON removal than on NHk- N removal. Theremoval rates of PO and NO.-N became higherwith increase in initial acetate concentrations. Theleast required initial concentration of acetate is 125× 10-6. As the initial acetate concentration reached215 × 10-6, the bulking of activated sludgeoccured.

关 键 词：废水处理 生物脱氮除磷 污泥沉降性 

分 类 号：X703[环境科学与工程—环境工程]