The main research contents are as follows. (1) Measure the concentratedsludge collected from the sewage treatment plants located in north and mid Taiyuan.
课题主要研究内容及结果如下：（1）对采自太原市河西北中部污水处理厂的浓缩污泥样品进行分析测定。
2
Analyze sludge movement in the course of the mud scraper in concentrated pond operating, changes the straight line trowel to the curve trowel, raises the mud scraper working efficiency.
分析浓缩池刮泥机运转过程中污泥运动情况，改直线刮泥板为曲线刮泥板，提高了刮泥机工作效率。
3
Inhibition effect of high concentrated sulfate and sulfite on aerobic granular sludge technology is also analyzed, and the methods of eliminating the inhibition are discussed.