HAAs formation kinetics in water distribution system in Shen Zhen

摘要

HAAs is one of the by-products of chlorination disinfection and harmful to the health. The tests were carried out in the City of Shen Zhen, China on the HAAs formation kinetics in water distribution system. A new method was developed based on EPA 6251 .B and 552 and proved to be more time saving and accurate. Many factors, such as organic substances, NH_4-N, temperature, bromate, reaction time, chlorine consume, PH, etc. have effect on HAAs formation and organic substances, NH_4-N, temperature, bromate and reaction time are the main factors. Experiments were done respectively and mathematics equations were concluded. Based on the research, dynamic monitoring model on HAAs in water distribution system may be set up in the future.