Effect of submerged plant Hydrilla verticillata on the concentrations of different phosphorus species in overlying water;

The distribution of nutrients in the interstitial water and overlying water in Daya Bay;

Removal and transfer process of phosphorus between substrate and overlying water in riparian wetlands

Effects of chemical agents on the overlying water during in-situ sediment treatment;

By lab-scale experiments,in the iron-added reactor and a contrast reactor,the changes of TP and pH in overlying water,changes of WSP,various phosphorus according to Golterman and TP in the sediments have shown that cheap and easily-gotten iron scraps can be used to reduce the concentration of soluble phosphorus in scenic water from 0.

We examined self- purifying coefficient- BOD and COD reduction coefficient in overlying water at the presence and absence of dredging sediment as well as comparison the dredging effectiveness.