基于AERMOD模型的大气环境影响评价对项目的优化建议--以福建省某拟建生活垃圾焚烧发电项目为例  

Air Environment Impact Assessment Based on AERMOD Model is Proposed to Optimize the Project--Taking a Proposed Domestic Waste Incineration Power Generation Project in Fujian Province as an Example

作　　者：廖文珍 Liao Wenzhen(Fujian Environmental Protection Design Institute Co.,Ltd.,Fujian,350000)

机构地区：[1]福建省环境保护设计院有限公司,福建350000

出　　处：《当代化工研究》2023年第24期80-83,共4页Modern Chemical Research

摘　　要：运用AERMOD模型预测不同地表类型、烟囱高度、烟气流速、排烟温度对大气环境影响变化规律,以期能为项目选址、设计提供优化建议。结果表明:(1)不同土地利用类型的各污染物网格点最大贡献浓度占标率依次为针叶林<落叶林<城市外围<农作物<草地;(2)烟气出口流速对大气污染物扩散影响很小(变幅<1%),烟囱高度、排烟温度对大气污染物扩散影响较大;(3)拟建项目推荐方案为选址在周边内3km为针叶林,烟囱高度为90m,烟气流速取10~20m/s,排烟温度在130~150℃之间。AERMOD model is used to predict the influence of different surface types,chimney height,flue gas velocity and exhaust temperature on atmospheric environment,in order to provide optimization suggestions for project site selection and design.The results showed that:The maximum contribution concentration ratio of each pollutant grid point in five different land use types was coniferous forest<deciduous forest<urban periphery<crop<grassland;The velocity of flue gas outlet has little effect on the diffusion of air pollutants(amplitude<1%),while the height of chimney and exhaust temperature have great effect on the diffusion of air pollutants;The best recommended scheme for the proposed project:The project site is located 3 km around the coniferous forest,the chimney height is set to 90 m,the flue gas flow rate is 10~20 m/s,and the exhaust temperature is between 130℃and 150℃.

关 键 词：AERMOD模型 大气环境影响评价 地表参数 烟囱 

分 类 号：X51[环境科学与工程—环境工程]