【摘要】 南京市江宁区于2017年对周岗盖社区的黑臭河道进行整治。为调查治理是否取得长期有效性,文章调查了2018年冬、夏两季该河道的水质,并采用城市黑臭水体污染程度分级标准进行分析评价。监测结果表明:河道上、中、下游的透明度最低值25 cm,氨氮最高值为4.17 mg/L,溶解氧最低4.69 mg/L,氧化还原电位最低125 m V,均处于无黑臭指标范围,表明河道水体在整治两年后维持良好的自净能力,治理效果显著。更多还原

【Abstract】 In Nanjing Jiangning District, a clean-up project using the method of ecological restoration was carried out to improvethewaterqualityofblack-smellywateralongsideZhouGangGaicommunityin 2017.Inanefforttoinvestigatethe long-termeffectivenessofwaterecologicalrestorationuponrivermanagement,aresearchonwaterqualitywasconducted during the summer and winter of 2018 and the results have been analyzed by the classification standard for pollution degree of urban black-odor rivers. Figures show that: of all upper, middle and lower reaches of the river course, the minimum of transparency index is 25 cm, the maximum of NH3-N being 4.17 mg/L, the minimum of DO being 4.69 mg/L,and the minimum of ORP being 125 mV, all of which suggest they are not black-odor rivers. The self-purification ability of water body at present has maintained in a fairly good condition after the management two years ago and that is a remarkableimprovement.更多还原