pH对剩余污泥中氮、磷释放的影响  

Impact of pH on Release of Nitrogen and Phosphorus from Excess Sludge

作　　者：员建[1] 陈轶[1] 李琼[2] 苑宏英[1] 孙力平[1] 

机构地区：[1]天津城市建设学院环境与市政工程系,天津300384 [2]中国城市规划设计研究院,北京100044

出　　处：《中国给水排水》2010年第1期96-98,共3页China Water & Wastewater

基　　金：天津市高等学校科技发展基金资助项目(20060521);天津市自然科学基金资助项目(08JCYBJC13200)

摘　　要：将pH分别控制在不同条件下(3.0、5.0、8.0、10.0和不调节),并测定各条件下剩余污泥溶出的NH4+-N和PO34--P浓度,考察了剩余污泥在水解酸化过程中pH对NH4+-N、PO43--P释放的影响。结果表明:对剩余污泥的pH进行调节,能够提高氨氮、正磷酸盐的释放量,且酸性环境下的NH4+-N和PO43--P释放量明显高于中性和碱性环境下的释放量。The concentrations of PO^- - P and NH4＋ - N released from excess sludge were meas- ured when pH was 3.0, 5.0, 8.0, 10.0 and without adjusting, and the impact of pH on the release ofPO4^3 - P and NH4 - N during the process of hydrolysis acidification of excess sludge was investigated. The results show that adjusting of acid-base environment can realize a significant increase in release of PO4^3 - P and NH4＋ - N. For the release of NH4 - N and PO4^3 - P, acid environment is better than neutral and alkaline environment.

关 键 词：剩余污泥 氮 磷释放 PH 

分 类 号：X703[环境科学与工程—环境工程]