基于合理性指数的入河污染物多目标总量分配模型

Multi-objective River Waste Load Allocation Model Based on Rationality Evaluation Index

基于水环境容量的污染物总量分配是污染物容量总量控制的核心内容.建立了以水环境容量利用率和总量分配合理性指数最大为目标,以WESC2D水环境模型和RPSM粒子群算法为工具的动态水文条件下入河污染物多目标总量分配模型,并在赣江下游控制单元进行了应用研究.结果表明,该模型兼顾了公平与效率原则,实现了污染物总量分配方案的科学性、合理性和可行性,无需试算、灵活易用,适用于不同分配主体,并为赣江下游控制单元污染物总量控制提供了决策依据.

Waste load allocation based on water environmental capacity is the major tool for total pollutant control. A multi-objective waste load allocation model was established to maximize both utilization of water environment capacity and the total load allocation rationality index,applied to allocate waste load for the lower Ganjiang River control unit. The Two Dimensional Water Environment Simulation Code（ WESC2D） model for water quality simulation and the Repulsive Particle Swarm Method（ RPSM） as an optimization tool were incorporated in this model under dynamic hydrological conditions. The results show that the proposed model is fair and efficient,flexible,easy-to-use and suitable for different distribution objects without the requirement of trial-and-error. The proposed methodology ensures that the total pollutant distribution plan is scientific,rational and feasible while providing foundation for the total pollutant control of lower Ganjiang River control unit decision-making.