污水处理消毒技术及发展方向

水循环过程中因受自然因素和人类的生活生产活动的影响,杂质和异物带入水循环形成污水。污水主要包括城市生活污水、工业废水和径流污水。若这些污水若不经处理就排入地面水体,就会使河流、湖泊受到严重污染。污水经过二级处理后,仍可能有病原菌,因此必须对污水进行消毒。本文分析比较了紫外线消毒以及氯消毒技术的适用条件、优缺点,还比较分析比较了二氧化氯消毒以及臭氧消毒技术的适用条件与优缺点,并对污水消毒技术的发展方向进行了探讨。

Sewage treatment disinfection technology and development direction

In the process of water circulation by natural factors and human life production activities affect,impurities,and foreign body into the water cycle form sewage.Sewage mainly includes the city life sewage,industrial waste and sewage runoff.These sewage if not processed into the ground is water,can make the rivers,lakes serious pollution.Sewage after level 2 treatment,it could still be a pathogen,and therefore must be of the sewage disinfected.This paper analyses and compares the ultraviolet disinfection,chlorine dioxide sterilization,disinfection,ozone disinfection and disadvantages of the techniques and the suitable conditions,and of the sewage disinfection technology development trend are discussed.