Effects of effluent irrigation on the variation of chemical element concentrations of soil extractions under field conditions;

This paper analysed heavy metal content in soil samples of different depth from the eastern,analyzed the relation between the concentration change of heavy metals in soil,provided the scientific evidences for effluent irrigation,solving the problems of water in effluent irrigation areas and environmental impact assessment.

We analyzed and evaluated contents of several heavy metals(Cr,,Cu,Cd,Pb)in soil samples at different depths collected from eastern Inner Mongolia receiving effluent irrigation.

Nitrogen wastewater irrigation study and its contamination risk analysis;

Diary effluent is typically rich in nitrogen and phosphorus, and wastewater irrigation can reduce fertilizing costs and slacken contamination.

Abstract The impact of wastewater in Shawan Wastewater Pool in the refinery of Dushanzi Petrochemical Company on surrounding environment and the impact of wastewater irrigation on soil,environment and vegeta- tion are analyzed,which provides important information on the re-utilization of treated wastewater from petro- chemical plants.

Research progress on heavy metal pollution in sewage irrigation;

Impact of depth of groundwater table on nitrogen dynamics in soil under sewage irrigation;

Effects of sewage irrigation on winter wheat quality and Yield;

Effect of additional organic carbon on nitrogen transport in waste water irrigation;

It is concluded that the test soils in waste water irrigation area of western Shenyang suburb were heavily contaminated,suggesting that engineering,biological and chemical measures must be taken to remedy contaminated soils in a long period.