An indicator system have been established for evaluating the environmental performance of enterprises,and the DEA model was use to study the environmental performance levels of 15 representative enterprises in an industrial park in Nanjing.The results indicate that three companies have achieved DEA scale efficiency,while the remaining 12 enterprises are all DEA scale ineffective.The emission reduction of 12 non-DEA effective enterprises are 48252.09 t/a for wastewater,22.91873 million standard m3/a for exhaust gas,5.075 t/a for COD,0.747 t/a for ammonia nitrogen,and 7.811 t/a for VOCs respectively,which indicating a great emission reduction potential.Using DEA model can effectively evaluate the level of environmental performance of enterprises,and providing theoretical basis for optimizing and controlling the environmental performance of park enterprises.
关键词
DEA模型/工业园区/环境绩效/削减量
Key words
DEA model/Industrial parks/Environmental performance/Emission reductions
维普
万方数据