地下污水处理厂恶臭污染物空间分布特性仿真分析  

Simulation analysis on odor dissipation and distribution characteristics of underground sewage treatment plant

作　　者：刘承东 杨鹏[2,3] 刘雪峰[2,3] 唐宏辉 

机构地区：[1]广州市市政工程设计研究总院 [2]华南理工大学电力学院 [3]广东省能源高效清洁利用重点试验室

出　　处：《制冷与空调》2017年第1期79-87,共9页Refrigeration and Air-Conditioning

基　　金：地埋式污水处理厂通风除臭系统关键技术研究(x2dlD8160470);国家科技支撑计划课题资金资助(2012BAJ06B06);广东省自然科学基金资助(2015A030310303);中央高校基本科研业务费专项资金资助(B6150170)

摘　　要：相对于地面式污水处理厂,地下污水处理厂一定程度上规避了异味,但因其地理位置的特殊性使得恶臭污染物在相对封闭的污水处理厂内聚集,严重损害工作人员的身体健康。本文选取某地下污水厂恶臭最严重的污泥脱水机房为例,运用Fluent模拟分析恶臭污染物中含量较高的NH3、H2S的逸散分布特性及随室外温湿度变化的规律,试验验证了Fluent模拟能基本反映地下污水厂污泥脱水机房的NH3、H2S的分布规律,模拟结果表明,湿度对NH3、H2S的逸散影响较大,为脱水机房的通风除臭提供理论依据和指导。Compared with conventional sewage treatment plants,underground sewage treatment plants reduce the emissions to a certain degree.While,due to environmental characteristics of its relatively closed,underground sewage treatment plant makes malodorous gas gathering,concentration increasing.Odorous gases concentration of sludge dewatering room is the most serious.The objective of this paper is to study on NH3 and H2S dissipation and distribution characteristics and the law fallowed by outdoor temperature and humidity changes based on fluent.Results comparing simulation data with the experimental data illustrate that fluent simulation is feasible.The simulation results show that the humidity has greater impact on dissipation and distribution characteristics of NH3,H2 S.These results provide a theoretical basis and guidance for the ventilation and deodorization of sludge dewatering room.

关 键 词：除臭系统 污水脱水机房 恶臭污染物 仿真模拟 环境控制 

分 类 号：X512[环境科学与工程—环境工程]