Affiliations: State Key Joint Laboratory of Environmental Simulation
and Pollution Control,Institute of Environmental Sciences,Beijing Normal
University,Beijing 100875,China | Plant of Water and Electricity Supply,Huabei
Oil-Field,Renqiu 062552,China | Department of Water Resources and Environmental
Science,China University of Geoscience,Beijing 100873,China
Abstract: Nitrogen contaminant transport,transformation and uptake simulation
experiments were conducted in green house under three different planting
density of winter wheat.They were Group A,planting density of 0.0208
plants/cm²,Group B, 0.1042 plants/cm²,and Group C,0.1415
plants/cm² .The capacity and ratio of nitrogen removal were different on
three kinds of conditions of wastewater land treatment.From analysis of
wastewater treatment capacity,wastewater concentration and irrigation intensity
for Group C were suitable and nitrogen quantity added was 2 times of that for
Group B,2.6 times for Group A while nitrogen residue was only
7.06%.Hence,wastewater irrigation and treatment design with purpose of waste
water treatment should select the design with maximum capacity,optimal removal
ratio and least residue in soil,which was closely related to crop planting
density,crop growth status and also background nitrogen quantity in soil.
