苏州河水的黑臭现象研究

Study of the Phenomena of Water Blackening and Stink on Suzhou Creek

通过对苏州河上海段300km^2水域范围的实际观测试验,研究了苏州河出现黑臭现象的规律,讨论了河流中的有机污染物(COD、BOD、NH_3—N),溶解氧和水温对河水黑臭的影响定量关系,并应用多因子系数,建立了水质黑臭指数关系式,经过实测进行了验证,结果表明,应用所建立的黑臭指数关系式对苏州河沿程水质进行评价,其正确率可达97％。

Phenomena of blackening and stink in urban river water were studied through analysis of the water in Suzhou Creek, Shanghai. Environmental factors: COD, NH_3-N, DO and water temperature were proposed as odorous thresholds, then blackening and stink indexes were established with the parameters of multifactor. The accuracy was 97% with the established index model, through verifying a series of observed data of the river in Shanghai.