摘要
以兰州某石化公司化工污水处理厂恶臭治理项目为例,在确定恶臭气体的污染源源强的基础上,采用AERMOD模式预测污染物扩散情况。结果表明,添置除臭装置后,NH3的臭气浓度减少了90%,VOCs的臭气浓度减少了88%。同时,当恶臭污染物浓度达到环境质量浓度标准时,NH3的臭气强度为1.40级,VOCs的臭气强度为0.82级,人们仍能感觉到气味。因此石化企业在进行恶臭治理过程中需综合考虑污染物的环境空气质量浓度标准和臭气强度,以期改善环境空气质量。
Taking achemical sewage treatment plant stench control project in a petrochemical company in Lanzhou as exam-ple, this study determines the source of the strong stench of gas pollution on the basis of model calculations using AERMOD deo-dorizing device after purchase. It was found that odor concentration of NH3 reduced 90% and of VOCs reduced 88%. At the same time , when the concentration of odor pollutants concentration of environmental quality standards, the odor intensity of NH3 is 1. 40 and of VOCs is 0. 82, in which situation people could still feel the terrible smell. Therefore, in order to improve air quality, pet-rochemical enterprises should take into account ambient air quality standards of odor pollutants and the odor intensity in the process of stench governance.
出处
《环境科学与管理》
CAS
2016年第10期161-165,共5页
Environmental Science and Management
关键词
恶臭气体
臭气强度
污水处理厂
除臭装置
stench gas
odor intensity
sewage treatment plant
deodorization device
