Aimed at the problems such as chemical foam,septic floating sludge,denitrifying floating sludge and aged floating sludge occurred in a municipal wastewater treatment plant using the modified oxidation ditch for more than one year,the causes for mentioned problems were analyzed,and the solutions were given respectively.

In-situ observation of floccule size and fluid mud in the Changjiang Estuary;

Formation mechanism and distribution characteristics of the fluid mud in the seaward channel of the Lingding Sea;

Study on fluid mud carrying capacity, sediment transport and their application;

Experimental study on reflected spectrum and estimating amount of suspended sediment;

Observations of the size and settling velocity distributions of suspended sediment in the Zhujiang River Estuary during dry season;

Remote sensing of suspended sediments in China east coastal waters from SeaWiFS data;