Treatment of production water
1、Fine prefiltration before operation of
　 ultrafiltration, reverse osmosis, electrodialysis
　 and ion exchange resin system etc.
2、Fine filtration of river water, well water and lake
　 water etc.

Filtration of waste water
1、Heavy metal waste water: Electroplating waste water,circuit board production 　     waste water and hot galvanizing waste water
2、Fluoride waste water
3、Waste water of coal mine well
4、Waste water of coal yard