城市污水处理厂不同性状污泥填埋工艺的试验研究  

Research on methods of sludge disposal by landfill for urban wastewater treatment plants

作　　者：马建立[1] 赵由才[1] 张华[1] 魏云梅[1] 牛冬杰[1] 柴晓利[1] 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《给水排水》2007年第10期50-53,共4页Water & Wastewater Engineering

基　　金：2005年全国家教育部科学技术重大项目(305005)

摘　　要：根据上海城市污水处理厂处理工艺和污泥的物理化学特性,将污泥分为生化污泥和化学污泥,提出了生化污泥与矿化垃圾混合填埋,化学污泥固化填埋两种污泥填埋工艺。研究表明,生化污泥与矿化垃圾按10∶7的比例进行混合填埋可以达到污泥填埋的土力学要求,并可加速污泥厌氧产气反应和有机质的降解,缩短污泥稳定化的时间;污泥固化填埋采用一种新型的M1镁系胶凝固化剂,加入量为5%时,可以达到污泥的填埋要求,并对污泥中的重金属具有固化作用。By the genesis and the nature of the wastewater sludge, it is classified into two categories： the biological sludge and the chemical sludge, which are treated by different ways. The biological one is blended with aged urban solid waste at ratio of 10 ： 7 and the chemical one is solidified by magnetic solidified agent M1 with addition of 5%, and finally both two shall be disposed by landfill. The experimental research proved that the anaerobic gas generation and degradation of the organic substances in the blended biological sludge were speeded up, so the stabilization time decreased and also the soil mechanic properties improved to meet the requirement of landfill. For the solidification of chemical sludge, the heavy metals were fixed, the release was avoided and the physical feature of the solidified chemical sludge was suitable to landfill.

关 键 词：污泥填埋 生化污泥 化学污泥 矿化垃圾 污泥固化 

分 类 号：X505[环境科学与工程—环境工程]