城市污水处理厂恶臭浓度分布规律及其防治措施

Analysis on Stench Concentration Distribution and Treatment Technology for City Wastewater Treatment Plant

城市污水处理厂的主要大气污染物之一为恶臭污染,恶臭问题已经成为环境领域的一个重要研究课题。恶臭污染物的来源主要是初沉池等水流湍动处,其成分主要是含氮化合物、含硫化合物、含氧有机物等。分析了恶臭污染物的来源、成分和浓度分布等,对确定城市污水处理厂的卫生防护距离进行了讨论,并介绍了目前国内外主要恶臭污染防治措施。湿式吸收氧化法和生物过滤法这两种技术是当前发展和应用的方向。

One of the major air pollutants in city wastewater treatment plant is stench, which has become an important environmental research object. Major sources of stench is the primary sedimentation tank and other water turbulence office, the main components are nitrogen compounds, sulfur compounds, oxygenated organic compounds, etc.. This article ana- lyzed the source, composition and concentration distribution of stench, discussed the determination of health protection distance in wastewater treatment plant, and introduced the present major domestic and aboard control measures for stench. At present, the wet oxida- tion and biological filtration absorption method are the current direction of the development and application.