Besides,this paper also gives an account about the actual practice of Kailuan Group in intensifying coal separation and coal washing as well as their practice in intensified comprehensive utilization of waste coals.

Research on Ecological Control over the Luanhe River in Chengde County of Hebei Province;

AFS method is used to analyze micro amounts of arsenic and selenium in the Luanhe river,this method is simple,rapid and high sensitivity.

Preliminary study on comprehensive harness of Qian an Section of Luan River;

Model Design and Experimental Study on Water and Sedimentation of Meandering River for Qianxi City Section of Luan River;

Health Risk Assessment on Heavy Metal Pollution in the Water Environment of Luan River

Relationship between pollen assemblages and vegetation in alluvial sediments of Luanhe River Basin;

Research on Flood Control by Combined Operation of Reservoirs on Luanhe River Middle and Down Stream;