摘要
采用CALPUFF模型,评估铸造行业提升改造后对沧州市空气质量的改善效果。以2017年为基准年进行核算,从炉窑改造、末端治理技术升级、无组织排放管控三个角度进行情景分析。在执行减排策略下,沧州市铸造行业SO_(2)、NO_(x)、PM_(2.5)、VOCs减排量分别达224.4 t/a、282.1 t/a、5631.9 t/a、245.6 t/a,较现状排放情景减排效率分别为50.95%、41.13%、80.28%、55.74%。模拟结果显示,现状情景下SO_(2)、NO_(x)、PM_(2.5)、VOCs对国控点的年均浓度贡献值分别为0.09μg/m^(3)、0.12μg/m^(3)、1.58μg/m^(3)、0.08μg/m^(3),优化情景下SO_(2)、NO_(x)、PM_(2.5)、VOCs对国控点的年均浓度贡献值分别为0.05μg/m^(3)、0.08μg/m^(3)、0.40μg/m^(3)、0.04μg/m^(3),PM_(2.5)浓度下降1.18μg/m^(3),改善效果显著。
This study evaluated the impact of improvement degree of environmental air quality in Cangzhou after the upgrades and transformation of the foundry industry by CALPUFF model.In this study,2017 was taken as the baseline year for accounting,and scenario analysis was made from three perspectives:fumace renovation,terminal management technology upgrades,disorganized emission control.Under the reduction strategy,the emission reduction of SO_(2),NO_(x),PM_(2.5) and VOCs in Cangzhou foundry industry was 224.4 t/a,282.1 t/a,5631.9 t/a,245.6 t/a.Compared with the baseline emission scenario,the reduction ratio was 50.95%,41.13%,80.28%and 55.74%respectively.The simulation results showed that average annual concentration contributions to national control points of SO_(2),NO_(x),PM_(2.5) and VOCs were 0.09μg/m^(3),0.12μg/m^(3),1.58μg/m^(3),0.08μg/m^(3) respectively under the baseline scenario and 0.05μg/m^(3),0.08μg/m^(3),0.40μg/m^(3),0.04μg/m^(3) respectively under the emission reduction scenario,PM_(2.5) concentration decreased by 1.18μg/m^(3),showing significant emission reduction effect.
作者
雷团团
李时蓓
伯鑫
屈加豹
马岩
毛娜
路瑞娟
LEI Tuantuan;LI Shibei;BO Xin;QU Jiabao;MA Yan;MAO Na;LU Ruijuan(Appraisal Center for Environment and Engineering,Ministry of Ecology and Environment,Beijing 100012,China;Ecology and Environmental Protection Science Research Institute of Cangzhou,Cangzhou 061000,China)
出处
《环境影响评价》
2021年第5期68-74,共7页
Environmental Impact Assessment
基金
国家自然科学基金资助项目(71673107)
大气重污染成因与治理攻关项目(DQGG0209-07、DQGG0304-07)。
