摘要
2011年,在天津市纪庄子污水处理厂内采集空气样品,并对其中恶臭气体的浓度、扩散模式、影响范围及污水厂内各主要构筑物间相关系数进行了分析研究。结果表明,污水处理厂格栅处恶臭气体浓度最高,为4.31 ng/mL,其中95.61%为H2S气体,其他构筑物恶臭气体浓度范围为0.09～0.32 ng/mL,恶臭气体浓度较前处理工艺相比有大幅度减少;各主要构筑物排放的恶臭气体符合高斯气体扩散模式,恶臭影响范围为厂界外100 m以内;格栅处恶臭气体的排放对于厂界处恶臭气体浓度的贡献度最大,为42.68%;格栅、初沉池、脱水机房、二沉池之间的相关度在90%以上。
The air samples were collected in Jizhuangzi Sewage Treatment Plant in 2011, and the odor concentration, dispersion mode, sphere of influence, and the correlation coefficient between each main structure were analyzed in the sewage treatment plant. The results indicate that the concentration of odor emitted from the grid is the highest （4.31 ng/mL） , 95.61% of which is H2S. The range of other main structures＇ odor concentration is from 0.09 to 0.32 ng/mL, the concentration decreases obviously compared with the previous process. The odor emission is consistent with the Gauss dispersion mode, and the sphere of influence is less then 100 m. The odor emitted from the grid has the main contribution to the odor concentration of the boundary, whose percentage is 42.68%. The degrees of correlation of grid and primary settling tank, dehydration machine room and secondary settling tank are more than 90%.
出处
《环境工程学报》
CAS
CSCD
北大核心
2013年第4期1459-1464,共6页
Chinese Journal of Environmental Engineering
基金
环保公益性行业科研专项经费项目(201009034
201109004)
天津市科技支撑计划重点项目(10ZCGYSF02000)
关键词
污水处理厂
恶臭浓度
恶臭强度
扩散模式
sewage treatment plant
odor concentration
odor intensity
dispersion mode
