摘要
当前城市污水处理厂臭气的消除与控制将成为一种必然趋势,建设环保型污水处理厂是时代发展的要求。介绍了城市污水处理厂恶臭气体的主要组成成分、臭味阀值及臭气的来源,并对臭气在各构筑物中形成和逸出的原因进行了分析。指出城市污水处理厂内的主要臭气源是污水处理的进水部分和污泥处理部分,且在不同的污水处理工艺及运行方式下产生的臭气浓度、成分会有所不同。从臭气成分测定的复杂性出发,分别对嗅觉测定法和仪器分析法进行评价,并从抑制气体的产生和逸出、构筑物的密封、逸出气体的收集处理以及收集气体的净化等方面对污水处理设施中气体的控制进行了讨论。介绍了常用的活性炭吸附法、臭氧处理法、生物过滤法等恶臭污染控制技术,简单评价了各种处理净化方法的优缺点以及适用范围,提出生物脱臭法是最为经济有效的,不会产生二次污染的问题。
As the public living standard and awareness of environmental issues increased, odour pollution from sewage treatment plant becoming an increasing problem. This article introduced the composition, threshold and source of odour from sewage treatment plant, and analyzed the reason of the odour and how it escapes. This article pointed out that the main odour came from the inlet of the sewage treatment plants and the part of the sludge disposal. The concentration and composition of odour depend upon the process of sewage treatment and the way of operation. Sensory measurement and analytical measurement were evaluated through the complicacy of the odour measurement method. The way of restraining generation and escaping of odour, the containment structure of facilities and decontamination of odour after emitting were discussed. The activated carbon adsorption method, ozone method, biological filtrating method and so on have been described. The simple evaluation was made through the virtue, shortcoming and it application area of each method, and found out that the biological method was most effective and economical, and without secondary pollution. The odour abaement and control is an inevitable direction for sewage treatment plant in these days.
出处
《上海环境科学》
CAS
CSSCI
CSCD
北大核心
2003年第S2期4-7,190,共5页
Shanghai Environmental Sciences
基金
上海市重点学科建设项目
关键词
城市污水处理厂
臭气
测定
控制
Sewage treatment plant Odour Measurement Control
