Research on the influence of protective distance of iron and steel enterprises under the scenario of capacity replacement
Based on the pollution source emission data of an iron and steel enterprise in Liaoning Province,Busi-ness-As-Usual(BAU)scenario and after the implementation of capacity replacement scenario were established.The CALPUFF model was used to simulate the influence of various pollutant emissions of the steel plant on the atmospher-ic environment protection zone and health protection zone settings around the plant under two scenarios.The results showed that the implementation of the capacity replacement project of iron and steel enterprises had a significant ef-fect on the reduction of major pollutants.Among the major pollutants,emission of particulate matter,SO2 and NOX were reduced by about 53.4%,16.2%and 50.9%,respectively.After the implementation of the capacity replace-ment project,the atmospheric protection distance and health protection distance in the surrounding area of the steel plant were reduced compared with BAU scenario.
Protection distanceIron and steelCALPUFFCapacity replacementUltra-low emission retrofit