苏州河水体黑臭机理及底质再悬浮对水体的影响  

The Mechanism of Blackening and Stink and Effects of Resuspended Sediments on Suzhou Creek Water Quality

作　　者：应太林[1] 张国莹[1] 吴芯芯[1] 

机构地区：[1]上海大学,上海200072

出　　处：《上海环境科学》1997年第1期23-26,共4页Shanghai Environmental Sciences

摘　　要：探讨了苏州河水体黑臭现象,证实了水体发黑主要与存在吸附了FeS的带负电胶体悬浮颗粒有关,且腐殖质是吸附物或络合物的主要组成。水体发臭为含硫、氮等有机物降解时逸出NH_3、H_2S等所致。 用Ⅲ类地面水对典型污染断面的底质进行了反复搅拌清洗试验。结果表明,随着清洗次数的增加,水体的黑臭指数下降最终可不黑臭。底泥再悬浮对水质的影响试验表明,搅拌速度增加,各项指标恶化,黑臭加剧。It was proved that the main substance to make the water blackening was the colloid granules with negative electricity which adsorbed FeS and MnS. The adsorbent was mainly composed of humus. Stink of the water was caused by NH3 and HzS escaping when organic matters were decomposed. The blackening and stink index could be decreased by stirring and washing the contaminated sediment with third class surface water repeatedly. The test of resuspended sediment in the water showed that with raising the rate of stirring quality of the water worsened rapidly.

关 键 词：河流污染 苏州河 底质污染 黑臭 再悬 水体 水质 

分 类 号：X522.02[环境科学与工程—环境工程]