慢速渗滤土地处理系统对沈阳西部城市污水有机污染物净化效果的研究

Purification effect of slow rate land treatment system on organic pollutants in municipal wastewater from west Shenyang.

本文研究了慢速渗滤土地处理系统对沈阳西部城市污水中有机污染物的净化效果和有机污染物在土地处理系统土壤中的残留情况。结果表明,在试验条件下,系统对有机污染物具有良好的净化效果,大多数有机污染物在系统输出水中未被检出,少数重点有机污染物在系统输出水中的浓度也明显降低,其中苯、氯苯、1,2-和1,4-二氯苯、苯酚,邻苯二甲酸二丁酯、γ-666等的含量已明显低于地面水水质标准建议值。系统对绝大多数重点有机污染物的去除率达95—100％,而不同重点有机污染物在土壤中的残留率为0—3％。

The purification effect of slow rate land treatment system (SR-LTS) on organic pollutants in wastewater and the residual rate of organic pollutants in soil are studied in this papter. It's shown that the sYstem has a good purifying effect on organic pollutants, most of the organic pollutants in wastewater being not detected in effluent and some priority organic pollutants in it being significantly decreased, among which, the concentrations of benzene, chlorobenzcne, 1,2-dichlorobenzene and 1,4-dichlorobenzene, phenol, dibutyl-phthalate and γ-666 are much lower than the recommended quality standard of surface water, The removal efficiency for most priority organic pollutants is 95—100%, and their residual rate in soil is 0—3%.