Design and passage capacity experiment of forward extended double blades sewage pump;

Research the Designing Method of Semi-opened Sewage Pump Impeller;

Hydraulic model tests for head tank of sewage pumping station;

Energy-saving mechanism and control strategy of sewage pumping station system;

Implementation of Remote Centralism Control System in City Sewage Pumping Station Based on VPN;

Application of soft starter in waste water disposal pump;

Temperature characteristics of municipal waste\|water and the type of wastewater heat pump(WWHP) was discussed,the potential of application and economy was analyzed Problems and the solution relating to the application of WWHP in residential heating system was proposed in the end.