乳品废水活性污泥沉降特性研究  

Study of Settlement Characteristics of Activated Sludge from Dairy Wastewater

作　　者：温洪宇[1] 吕爱军[1] 杨洋[1] 贾新宇[1] 杨柳[1] 

机构地区：[1]徐州师范大学生命科学学院,江苏徐州221116

出　　处：《环境科学与管理》2008年第10期85-87,共3页Environmental Science and Management

基　　金：江苏省高校自然科学基础研究项目(06KJD180180);徐州师范大学培育课题(06DYL03);徐州师范大学自然科学基金(07XLB11)

摘　　要：针对活性污泥法处理乳品工业废水过程中产生大量活性污泥的现状,研究不同温度、pH和沉降时间对活性污泥沉降的影响,旨在阐明活性污泥沉降性能的最佳条件,最大限度降低活性污泥在污水处理系统中所占的体积。试验结果表明当污泥沉降时间为120 m in时,pH6.0,35℃条件下污泥沉降体积为54%;pH7.0,45℃条件下污泥沉降比为54%;pH8.0,45℃污泥沉降体积比为55%;pH9.0,55℃条件下污泥沉降体积为52%;pH 10.0,5℃、15℃、25℃、35℃、45℃和55℃条件下污泥沉降体积比相近,均在60%以上。结合乳品废水处理的实际情况,pH6.0~9.0,温度35℃~55℃,污泥沉降时间为120 m in,污泥沉降效果较好,体积比可达到52%~54%。Influence of pH,temperature and settlement time on the settlement characteristics of activated sludge were studied preliminarily to illustrate the best condition for sludge settlement and decrease the volume of sludge in wastewater treatment system facing to the fact that volume of sludge increases in course of treating dairy wastewater using activated sludge process.The experimental results showed that activated sludge had different settlement characteristics under different experimental conditions.Under t...

关 键 词：活性污泥 沉降 PH 温度 时间 

分 类 号：X703.1[环境科学与工程—环境工程]