Advantages of a ClO2/NaClO combination process for controlling the disinfection by-products (DBPs) for high algae-laden water

Ye, Bin1,2; Cang, Yan1,2,3; Li, Ji3; Zhang, Xiaolei3

2019-06

10.1007/s10653-018-0231-8

ENVIRONMENTAL GEOCHEMISTRY AND HEALTH   影响因子和分区

0269-4042

1573-2983

Chlorine dioxide (ClO2) has been widely used in the process of preoxidation and disinfection as an excellent water treatment reagent. However, the inorganic by-products produced by ClO2, such as chlorite (ClO2-) and chlorate (ClO3-) are harmful to human health, and this has become a potential problem when using ClO2 in drinking water treatment. In this study, ClO2 alone and a ClO2/NaClO combination process were carried out to evaluate the algae removal efficiency of the treatment and the formation of disinfection by-products (DBPs: chlorite, chlorate, trihalomethanes and haloacetic acids) for high algae-laden water with 124.16 mu g L-1 chlorophyll a (Chl.a) content. The results show that disinfection with 1.5 mg L-1 ClO2 alone results in a ClO2- concentration exceeding 0.7 mg L-1. ClO2 preoxidation/ClO2 disinfection is applicable for the control of effluent quality, but the ClO2- concentration still has an excessive risk when using 0.8 mg L-1 and 0.6 mg L-1 ClO2 for the two process, respectively. In the ClO2/NaClO combination process, the ClO2- concentration is below 0.6 mg L-1, and trihalomethane (THM) and haloacetic acid (HAA) concentrations are lower than 60% of the maximum contaminant levels (MCLs) set by the World Health Organization (WHO). Further, the formation of ClO2- is more effectively controlled by NaClO preoxidation/ClO2 disinfection than ClO2 preoxidation/NaClO disinfection.

Chlorine dioxide (ClO2) Disinfection Sodium hypochlorite (NaClO) Algae Disinfection by-products (DBPs)

SCI

英语

第一 ; 通讯

Southern University of Science and Technology[G01296001]

Engineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources

Engineering, Environmental ; Environmental Sciences ; Public, Environmental & Occupational Health ; Water Resources

WOS:000482428000029

SPRINGER

ENVIRONMENT/ECOLOGY

Web of Science

1.Southern Univ Sci & Technol, Guangdong Prov Key Lab Soil & Groundwater Pollut, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 518055, Peoples R China
3.Harbin Inst Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China

Ye, Bin,Cang, Yan,Li, Ji,et al. Advantages of a ClO2/NaClO combination process for controlling the disinfection by-products (DBPs) for high algae-laden water[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2019,41(3):1545-1557.

Ye, Bin,Cang, Yan,Li, Ji,&Zhang, Xiaolei.(2019).Advantages of a ClO2/NaClO combination process for controlling the disinfection by-products (DBPs) for high algae-laden water.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,41(3),1545-1557.

Ye, Bin,et al."Advantages of a ClO2/NaClO combination process for controlling the disinfection by-products (DBPs) for high algae-laden water".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 41.3(2019):1545-1557.