Water resource optimal configuration system and method for near-zero discharge of sewage in industrial park

Abstract

The invention relates to a water resource optimal configuration system and method for near-zero discharge of sewage in an industrial park. The system comprises a river ecological system, an industrial park industrial enterprise, an enterprise sewage treatment station, a park sewage treatment plant, a park sewage treatment plant tail water purification wetland and a water regeneration plant. According to the method, an objective function and constraint conditions are determined according to water utilization and drainage characteristics of different enterprises in a park, a park water resource optimal configuration mathematical model is constructed with the minimum fresh water consumption, the lowest economic cost and the best environmental benefit as targets, the mathematical model is solved by using a genetic algorithm, and an optimal industrial park water resource allocation scheme is obtained and output. According to the system and method, the optimal effluent direction and the water quantity of each stage of treatment facility are determined, and the selection and treatment degree of each stage of water treatment process is predicted, so that a scientific basis is provided for industrial park sewage zero-discharge network management, sewage treatment facility design and upgrading and reconstruction of a sewage treatment technology.

Description

technical field [0001] The invention relates to a system and method for optimal allocation of water resources for near-zero discharge of sewage in industrial parks, and belongs to the technical field of environmental pollution control. Background technique [0002] At present, the research on the near-zero discharge of sewage in industrial parks mainly focuses on the development and improvement of unit treatment technologies such as membrane treatment and advanced oxidation, aiming at improving the removal efficiency of pollutants in wastewater, but there is a lack of overall planning of the industrial park as a whole, comprehensive consideration of corporate water use, A region-wide, whole-process water resource optimization scheme for drainage, sewage treatment, and recycling. Therefore, it is of great significance to construct a multi-level water resource optimal allocation model that couples water distribution within enterprises, water distribution between enterprises in...

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Problems solved by technology

[0002] At present, the research on the near-zero discharge of sewage in industrial parks mainly focuses on the development and improvement of unit treatment technologies such as membrane treatment and advanced oxidation, aiming at improving the removal efficiency of pollutants in wastewater, but there is a lack of overall planning of the industrial park as a whole, comprehensive consideration of corporate water use, A region-wide, whole-process water resource optimization scheme for drainage, sewage treatment, and recycling

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