Study of fate and transport of chromium in unsaturated zone‐saturated zone

Effluent irrigation can ease the water shortage area , agricultural water shortage and waste-water , recycling as well as bring a series of scientific and socio-econ , omic issues such as environmental , , issues food safety sustainable development and so , , on which has attracted the attention of people. So paper to Kaifeng city several important dirt irrigation district for , research object system analysis long-term dirt irrigation conditions soil heavy metal of content and the rich set , status and used within Mei Luo index method on the district soil heavy metal pollution status for , evaluation and research has Cr(VI) in different soil in the , of adsorption characteristics established adsorption , dynamics model and using non-are quality sand box simulation research that when , the level changes Cr(VI) in unsaturated zone-saturated zone interface of points different migration law.