摘要
污泥调质效果是决定板框压滤机出泥含水率的关键因素,为保证出泥含水率<60%,对污泥有机调质及无机调质的试验研究显得尤为重要。以天山污水处理厂为例,通过实验室试验和上机试验确定污泥浓缩段有机调质适用的PAM型号,将污泥含水率浓缩至97%以下,固体回收率高。同时通过板框压滤机脱水试验,随着浓缩污泥含水率的变化,污泥无机调质所需FeCl3和Ca(OH)2的投加量亦有明显变化。
It is sludge condition effect that can determine the sludge moisture content of plate and frame filter press.To guarantee the moisture content<60%,relevant experimental research of organic condition and inorganic condition is important particularly.Taking Tianshan Sewage Treatment Plant for example,the suitable organic condition PAM type number of sludge concentration section is decided by means of laboratory test and machine test,which can concentrate the sludge moisture content below 97% with high recovery rate of solid.Meanwhile,the plate and frame filter press dewatering test can show that,with the changes of concentrated sludge moisture content,the dosages of FeCl3 and Ca(OH) 2(needed by sludge inorganic condition) will be changed obviously.
出处
《中国市政工程》
2013年第2期31-33,106,共3页
China Municipal Engineering
关键词
污泥脱水
板框压滤机
污泥调质
sludge dewatering
plate and frame filter press
sludge condition
