不同进水方式对于EPBR系统厌氧释磷的影响  

EFFECT OF DIFFERENT MODES OF INFLUENT TO ANAEROBIC PHOSPHORUS RELEASE IN EPBR

作　　者：唐旭光[1] 王淑莹[1] 彭永臻[1] 袁志国[2] 段菁微 

机构地区：[1]北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100022 [2]昆士兰大学高级废水管理中心

出　　处：《环境工程》2008年第S1期36-40,共5页Environmental Engineering

基　　金：“十一五”国家科技支撑计划重点项目(2006BAC19B03);国家自然科学基金(50628808);北京市教委科技创新平台(PXM2008_014204_050843)

摘　　要：为了提高实际污水处理工艺中除磷效率,优化系统中厌氧释磷的条件,主要研究了三种不同原水投加方式对厌氧释磷过程的影响。本试验采用UniFed SBR系统内的活性污泥,考察了实际生活污水对活性污泥的释磷影响,采用1次进水、4次进水和连续进水3种不同原水供给方式对于厌氧释磷性能进行比较。研究结果表明,不同进水方式可有效延长实际生活污水的注入时间,大大提高其中有机底物的可利用性,释磷速率由0.082增至0.143 mg/(L.min),其中单位活性污泥释磷量分别为2.24×10-3、3.26×10-3和3.80×10-3mg/mg,这种碳源投加方式的改变,使得利用实际生活污水的厌氧释磷特性得到优化,并提高了实际生活污水中有机碳源的可利用性和除磷效率。In order to increase the phosphorus removal efficiency and to realize optimization of anaerobic phosphorus release conditions in the traditional wastewater treatment process,it was investigaed that the effect of three different modes of influence to the anaerobic phosphorus removal.The experimental sludge for treatment municipal wastewater was from the UniFed SBR system.In this study,the rate of phosphorus release were got respectively under three different modes of influence,one-time filling,four-time filling and continuous filling with same quantity of wastewater.The results showed that,the rate of anaerobic phosphorus release increased from 0.082 to 0.143 mg/(L·min),the phosphorus release quantity per unit sludge was 2.24×10^(-3),3.26×10^(-3),3.80×10^(-3)mg/mg respectively.It was proved that both of the phosphorus release efficiency and quantity was enhanced with the increasing of the wastewater filling schedule.The conclusion was that change of the modes of influence not only could change the biodegradability of the municipal wastewater,but also enhance the characteristic of the anaerobic phosphorus release with real municipal wastewater.

关 键 词：生活污水 进水方式 厌氧释磷 生物除磷 

分 类 号：X703[环境科学与工程—环境工程]