Comprehensive governance of urban black and odorous water bodies in China: problem analysis, treatment ideas and measures
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摘要: 随着城市化进程加快和污染物排放量的增大,我国很多城市水体污染负荷超出水体自净能力,水质恶化甚至出现黑臭现象,城市黑臭水体已成为当前公众反映强烈的水环境问题。国务院及相关部门高度重视,接连出台了一系列政策和文件,明确了城市黑臭水体综合整治的目标和方向。介绍了我国城市黑臭水体整治的背景和意义;从点源、面源、内源以及水动力学条件等方面,解析了水体黑臭成因和污染来源;在问题分析的基础上,结合黑臭水体“标本兼治”的目标,提出了黑臭水体整治的总体思路和技术路线;明确了统筹考虑控源截污、内源治理、生态修复、活水保质、监控与管理的黑臭水体治理措施。为加快全国范围内黑臭水体治理,实现治理目标起到重要的借鉴作用。Abstract: With the acceleration of urbanization and the increase of pollutant discharges in China, the pollution load of water body in many cities have exceeded the natural self-purification capacity of water bodies, resulting in the deterioration of water quality, or even the occurrence of black and odorous water bodies. The urban black and odorous water bodies, as current water environment issue in China, have aroused a strong public concern. The State Council and relevant departments attached great importance to it and had successively issued a series of policies and documents, which put forward clear targets and directions for the comprehensive governance of urban black and odorous water bodies. The background and significance for the treatment of black and odorous water bodies in the urban area of China were introduced and the causes and pollution sources of the black and odorous water bodies analyzed from the aspects of point source, non-point source, endogenous and hydrodynamic conditions, etc. Based on the problem analysis and combined with the goal of “addressing both the symptom and the root cause”, the overall idea and technical route for the treatment of black and odorous water bodies were proposed. The overall consideration of the treatment measures for black and odorous water bodies were provided, including pollution source control, pollution interception, endogenous treatment, quality assurance of living water, ecological restoration, and supervision and management, which played an important reference role in accelerating the governance of nationwide black and odorous water bodies and further achieving the treatment targets.
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