辽河流域工业行业污染减排潜力实证研究

Research of Industrial Pollutant Emission Reduction Potential in Liao River Basin

随着经济总量的持续增长,降低产污强度,从源头减少污染产生是促进污染减排的重要手段。基于2008年辽河流域工业行业环境统计数据,以COD,NH3-N两项指标为研究对象,识别出7类重点行业,其COD,NH3-N产生量分别占工业产生总量的77%、90%,排放量占工业总量的81%、77%。分析了重点行业的产污强度及末端去除率水平,表明工业行业产污强度高是工业污染严重的主要原因,发展清洁生产具有较大的减排潜力。设计工业行业发展清洁生产情景并测算出到2015年辽河工业的污染物排放情况,结果显示,通过适当限制重污染行业增长速度、重点降低产污强度、适当提高末端去除率,在流域工业行业产值年均增长率14.75%的情况下,2015年工业污染物排放量与2008年相比,COD削减45%-55%,NH3-N削减21%-33%。以此为流域工业污染防治"十二五"规划提供技术支持。

With the continuous growth of economic output, lowing pollutants generation intensity to reduce pollutant production was an important means for pollutant emission reduction. Based on environmental statistics data of industries of Liao River basin in 2008, with COD and NH3-N as pollutant indexes, seven kinds of industries, of COD and NH3 - N were selected as key industries, of which the pollutants production of COD and NH3-N were 77% and 90% and pollutants emission of COD and NH3-N were 81% and 77% respectively. By analying the pollutant generation intensity and end-pipe removal rates of the key industries, it showed that the higher pollutant generation intensity was the main reasons of heavy pollution and there were big pollutant emission reduction space for developing cleaner production from these industries. Desiging cleaner production development scenarios and measuing the pollutants emission of key industries in 2015, it shows that though limiting output annual growth rate of heavy pollution industries reasonably, reducing pollutant generation intensity and also appropriately raising the end-pipe removal rate, under the condition that industrial output keeps an average annual growth rate of 14.75%, the pollutant emission of COD will reduce 45% - 55% and NH3-N will reduce 21% - 33% compared to that of COD and NH3-N in 2008. 31ais provides technical supports for ＂12th five year＂ industrial water pollution control planning for Liao River basin.