Open AccessReaction law of high purity chlorine dioxide and typical substances in raw water
Author(s) -
Zhuoyue Wang,
Wei Song,
Ji Li,
Xiaolei Zhang,
Mengxun Wu
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/471/1/012011
Subject(s) - chlorine dioxide , chlorite , organic matter , chlorine , chemistry , environmental chemistry , water treatment , raw water , environmental science , inorganic chemistry , environmental engineering , materials science , metallurgy , organic chemistry , quartz
Great concern has been risen due to the harmful by-product formation in chlorine dioxide disinfection. To control the by-product formation, we need to know the factor that make a great contribution to generate by-product in drinking water treatment. The Fe 2+ , Mn 2+ , organic matter and algae are the most presenting matters that could cause the formation of chlorite; thus, they were selected as factors in the study. The results showed that the amount of by-product chlorite produced increased along with the increase of the concentrations of organic matter, algae and Fe 2+ in water, but the presence of Mn 2+ didn’t impact on the formation of chlorite. In addition, the interaction between Fe 2+ and Mn 2+ was observed, but no obvious interaction between other factors was found. So when the concentration of above factors exceed the standard, the chlorine dioxide is not recommended in any step of the water treatment.