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Position: Home > Articles > Removal of Nitrogen and Phosphorus from Precipitation Runoff of Dianchi Catchment Using Natural Zeolite Journal of Agro-Environment Science 2003,22 (02) 181-184

控制滇池流域降雨径流污染的沸石吸附技术

作  者:
张曦;吴为中;温东辉;李文奇
单  位:
北京大学环境科学中心
关键词:
降雨径流;天然沸石;吸附
摘  要:
采用野外现场试验方法,研究了滇池流域降雨径流污染物特征及天然沸石对模拟降雨径流中污染物的去除。结果表明,沸石床对NH+4-N和TP处理率达50%以上可持续约17h;对NO-3-N、NO-2-N则分别为5h和8h。流速及运行次数对NH+4-N去除率均有影响,同样的处理时间下,流速增大或运行次数增多,沸石对NH+4-N的去除率减小。
译  名:
Removal of Nitrogen and Phosphorus from Precipitation Runoff of Dianchi Catchment Using Natural Zeolite
作  者:
ZHANG Xi,WU Wei-zhong,WEN Dong-hui ,LI Wen-qi (Center of Environmental science,Peking University,Beijing 100871,China)
关键词:
precipitation runoff;natural zeolite;adsorption
摘  要:
The characteristics of pollutants in the precipitation runoff discharging to Dianchi Lake and the removal of pollutants by natural zeolite were studied.The fo llowing results were obtained:the t ime for need removal over 50%of ammon ia nitrogen and total phosphorus remained was 17hours whi le the times for over 50%of removal ra tio of nitrite nitrogen and nitrate n itrogen remained were5and 8hours,respectively.Within t he same removal period,removal ratio of ammonia nitrogen decreased with either runoff velocity or increasing times of using zeolite.

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