The mechanical and cavitation effects of low intensity ultrasonic irradiation on the biological activity of sludge;

Analysis and discussion of sludge disposal and treatment of sewage treatment plants in China;

Effect of ultrasonic power on waste activated sludge disintegration;

Effect of characteristics of waste activated sludge and experimental conditions on ultrasonic disintegration;

Effects of pretreating waste activated sludge by heating on mesophilic anaerobic digestion;

Disposal and utilization technology of mud from waste water in Xining;

Practice and discussion of the disposal and utiliz ation of the sewage and mud in converter dust removal;

Bioleaching of heavy metals in municipal sludge\|optimum parameters and reaction mechanism;

Bio-hydrogen production from acid pretreated municipal sludge;

A biodegradable chelating agent- stereoisomer of ethylenediamine disuccinate(EDDS) was used to extract Cu,Zn,Cd,and Pb in municipal sludges from different sources.

Research on effect of compound microbial inoculant on sewage sludge composting;

Characteristic study of the solid, liquid and gas produced by microwave pyrolysis of sewage sludge;

Removal effects of citric acid,oxalic acid and acetic acid on Cd,Pb,Cu and Zn in sewage sludge;