Comprehensive evaluation method for improving water environment quality through water diversion and drainage

Abstract

The invention discloses a comprehensive evaluation method for improving the water environment quality by water diversion and drainage. The method comprises the following steps: determining evaluationindexes reflecting the effect of improving the water environment quality by water diversion and drainage; river water quality improvement evaluation factors are selected; selecting a river water quality improvement evaluation section; collecting and arranging basic data; calculating each evaluation index under each water diversion scheme, and assigning a score to each water diversion scheme from each evaluation index; synthesizing each evaluation index score of each water diversion scheme to obtain a total score of the water environment quality improvement effect in each water diversion scheme; and comprehensively evaluating and analyzing the effect of improving the water environment quality by water diversion and drainage. According to the evaluation method, water quality improvement, hydrodynamic improvement and economic factors are comprehensively considered, the defect that a traditional evaluation method is not comprehensive in consideration is overcome, the effect of improving the water environment quality through water diversion and drainage is objectively and scientifically evaluated, the evaluation result is more comprehensive and objective, and meanwhile a certain basis is provided for scientific research of the optimal water diversion and drainage scheme.

Description

technical field [0001] The invention relates to a comprehensive evaluation method for water diversion and drainage to improve water environment quality, and belongs to the technical field of water environment management. Background technique [0002] With the development of our country's society and economy, environmental problems have become the bottleneck restricting our country's development. The water environment is one of the important elements of the environment, the pollution is the most serious, and the pollution situation is very severe. Water pollution not only affects the normal development of urban functions, but also poses a serious threat to the health and ecological safety of urban residents. The fundamental measure to improve river water quality is to effectively intercept and control pollution sources, but it is difficult to do this job well. [0003] The use of water conservancy projects to improve the water environment to a certain extent through water d...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a comprehensive evaluation method for water diversion and drainage to improve water environment quality, so as to solve the problem in the prior art that there is still a lack of a unified evaluation index system for the analysis of the effect of water diversion on water environment improvement, and most of them only list water diversion. The water quality concentration and category of each water quality factor before and after water diversion fail to explain the comprehensive effect of river network water quality improvement before and after water diversion.

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