城市河流黑臭水体综合评价体系的建立及应用

Establishment and Application of Comprehensive Evaluation System of Urban Black and Odorous Rivers

以系统理论为基础,对区域水系进行综合评价,并结合综合水质标识指数法和水体感官指标评价法,建立了城市河流黑臭水体综合评价体系。采用该综合评价体系,以某开发区内河水系为例,利用该区域水质例行监测数据(每月1次)和现场感官评价,确定当Iwq≥6.7时水体发生黑臭现象,开发区内河水系除黄白排水沟外,李公河、小埠东干渠、玉白河、解白河、彭白河以及小墩沟均有黑臭现象发生。分析结果表明,建立的综合评价体系可较好地识别城市河流黑臭水体,这对我国黑臭水体的识别及治理具有重要意义。

From the perspective of theory system, a comprehensive evaluation of regional water system was conducted. A comprehensive evaluation system for assessing black and odorous water in urban rivers was established, which combined comprehensive water quality identification index method and sen- sory evaluation method. The proposed system was applied to the river system in an economic development area. Based on the river water quality routine monitoring data （ 1 time per month） and on-site sensory e- valuation, it was identified that the river became black and odorous when I_wq ≥6.7, and black and odor- ous phenomenon took place in Ligong River, East Xiaobu Trunk Canal, Yubai River, Xiebai River, Pengbai River and Xiaodun Ditch except Huangbai Drainage Ditch in the river system of the economic de- velopment area. The results showed that the urban black and odorous rivers could be effectively identified by the comprehensive evaluation system, which had great significance for the identification and manage- ment of black and odorous rivers in China.