Reduction of precursors of chlorination by-products in drinking water using fluidized-bed biofilm reactor at low temperature.
OBJECTIVE
To investigate the reduction of chlorination by-products (CBPs) precursors using the fluidized-bed biofilm reactor (FBBR).


METHODS
Reduction of total organic carbon (TOC), ultraviolet absorbance (UV254), trihalomethane (THM) formation potential (THMFP), haloacetic acid (HAA) formation potential (HAAFP), and ammonia in FBBR were evaluated in detail. Results The reduction of TOC or UV254 was low, on average 12.6% and 4.7%, respectively, while the reduction of THMFP and HAAFP was significant. The reduction of ammonia was 30%-40% even below 3 degrees C, however, it could quickly rise to over 50% above 3degrees C. Conclusions The FBBR effectively reduces CBPs and ammonia in drinking water even at low temperature and seems to be a very promising and competitive drinking water reactor for polluted surface source waters, especially in China.
Xie
Shu-Guang
SG
Department of Environmental Sciences, College of Environmental Sciences, Peking University, Beijing 100871, China. xiesg@pku.edu.cn
Wen
Dong-Hui
DH
Shi
Dong-Wen
DW
Tang
Xiao-Yan
XY
D018441:Biofilms; D002713:Chlorine; D018508:Water Purification
D002713:Chlorine