氮污染在地下水中迁移、转化规律的研究

氮及其化合物是目前地表水和地下水的一个重要污染源。本文选取不同土质作为渗透介质,通过室内土柱实验,得出不同深度的土层对不同浓度的NH4+-N和NO3--N的去除率,及不同土层对同一浓度NH4+-N和NO3--N的去除率。同时得出,无论哪种地下土质对氨和硝酸盐的阻截能力都较弱,对突发污染恢复力也同样较弱。

Study on Transfer of Nitrogen Pollution in Groundwater

Nitrogen and its compounds have become the major pollutants of surface water and groundwater.In this paper,using different soil as the infiltration medium,indoor experiments of different soil depth and different soil layer were done and the removal rate of NH+4-N and NH-3-N were got.The conclusion showed that no matter what kinds of soil,it has little ability to tackle the infiltration of ammonia and nitrate,and it can hardly reinstate from emergency pollution.