污水生物处理系统中逸出气体的危害与控制

随着人们生活水平和环境意识的提高，污水处理系统逸出气体的问题日益引起人们的关注。笔者从人的意识与环境要求两个方面论述了污水处理设施中逸出气体净化的必要性，并介绍了逸出气体中刺激性成分对人体和构筑物的危害，提出了污水处理中逸出气体控制的主要对象。文中从抑制逸出气体的产生和逸出、气体逸出后所需要的构筑物的密封处理以及密封后气体的净化3个方面对污水处理设施中气体的控制进行了评述，分别简单评价了各种抑制、处理以及净化方法的优缺点，为控制方法的选择提供指导。

Harm of Offgas from Wastewater Treatment Facilities and Its Controlling

Offgas problem of wastewater treatment systems is becoming an increasing problem, as the public's living standard and awareness of environmental issues increases. This article puts forward the necessity of cleaning the offgas from wastewater treatment facility, introduces the harms of odorous portion of offgas to public and concrete construction, brings forward the main object of offgas emitted from wastewater treatment plant. The way of restraining the generation and escaping of gases, the containment structure of facilities and decontaminate of offgas after it emit, and the virtues and shortcomings of each method are discussed in this article to give advices for the selection of controlling ways.