污水处理消毒技术及发展方向

水消毒技术在给水处理中的应用已有100多年的历史,但在污水处理中的应用时间却不长,而我国更是才刚刚起步。城市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。分析比较了紫外线消毒、氯消毒、二氧化氯消毒、臭氧消毒技术的消毒原理、优缺点及适用条件,并阐述了污水消毒技术的发展方向以及在铁路行业的应用前景。

Technology and Prospects of Wastewater Disinfection

Water disinfection has been applied for more than 100 years to water treatment, but not for a long time to wasterwater treatment, and even just started in China.The city's treated wastewater may still contains pathogenic organisms, so it must be disinfected. In this paper, the principle, advantages and disadvantages, suitable application of ultraviolet, chlorination, chlorine dioxide and ozonisation disinfection processes are presented.The developing direction and the prospects of application in railway of wastewater disinfection are indicated.