The river pollution dynamic simulation system based on GIS;

Based on environmental monitoring data on the water quality of the rivers in the Yangtze River delta over past years,and combined with the experimental data and the filed investigation,the status quo of river pollution was briefly analyzed,and spatial distribution characteristics and temporal diversifi.

Influence on shallow ground water by chromium in polluted river;

Laboratorial research on clarification of polluted river;

On the basis of reviewing some international experiences on the treatment for polluted rivers as well as analyzing the serious situation of river pollution in China,development of the treatment technologies for organic polluted rivers were introduced.

Based on the discussion about migratory principle of dissolved contaminants in rivers,a two-dimensional water quality model for pollutional zones in rivers is set up.