Experimental study on capability of nitrogen removal and inhibiting nitrogen pollution in unsaturated zone under different states
不同状态下包气带除氮及阻止氮污染能力的实验研究

The capability of nitrogen removal and inhibition of nitrogen pollution in unsaturated zone under different states(natural self\|purification,injecting nutrition into the media and transplanted highly efficient cultured denitrifers into the media)were investigated and evaluated by means of nitrate\|eliminated modeling in soil column.The result showed that the state of transplanting highly efficient cultured denitrifers into unsaturated zone has high capability of inhibiting nitrogen pollution and removing nitrogen.Furthermore,reactive dynamic model of denitrification about that state was described.The results can be reliable reference for practicing engineering of eliminating nitrogen from wastewater in unsaturated zone and controlling nitrogen pollution caused by large area pollution.