Study on Optimization of Industry Structure in Xinxiang City

摘要

This paper proposed an approach of optimizing the industry structure. An optimizing model was built with the goals as minimum pollutants discharge, maximum gross industry output, and constraints as industrial water consumption, waste water discharge, pollutants and pollution treatment investment. This paper takes Xinxiang City as the pilot case to predict its economic development objective. On the base of the analysis of current industrial pollution and the forecasting scheme (Continuity scheme) in Xinxiang, it develops three supposed scenarios. In the three scenarios of following current programming scheme, technical improvement and increased environmental capacity,the industry structure was optimized for 2010, 2020 and 2030. After the optimization, industry structures were adjusted which caused different water use and pollutants discharge in each scenario. Compared with that in continuity scheme, the gross industrial output in the three supposed scenarios would be 8%-52% more in 2010, 2020 and 2030. Industrial water use would decrease 6%-35%, COD and NH3-N discharge would decrease 50%-80% and 36%-82% respectively. The industry optimization is an important approach to foundational control in water pollution control and water environmental protection in Xinxiang City.