流域排污权交易系统模型研究

在Hung和Shaw提出的排污权交易系统模型基础上，结合我国流域水污染状况，提出运用社会资本投资建设污水处理厂、对排污权征税与逐年降低目标区域污染物排放总量控制标准的组合策略，建立了新的流域排污权交易系统模型，并进行了仿真。研究表明，新模型成本有效，且新加入的组合策略，在目标区域污染物排放总量控制标准减少的同时，有效减少流域总削污成本和流域总排污量，增加污水处理厂的污水处理量，有效实现排污企业减排目标和流域水污染的可持续治理。

Research on Watershed-based Permit-trading System Models

Based on Hung and Shaw's trading-ratio system model,a mixed policy,which included building sewage treat-ment plants with social capital,a tax on emission permits and annual reduction of the standard regulating the total emis-sion control of water pollutant in target regions,was used to establish a new watershed-based permit-trading system mod-el.The results of simulation analysis showed that the new model Was cost-effective,and with the annual reduction of the standard in the model.the mixed policy led to reduce the total abatement cost and total emission of the watershed areas,and increase the treatment volume of sewage treatment plants.Therefore,the new model completed the emission reduc-tion and the watershed sustainable pollution regulation.