Three analogous laboratory-scale water pipe systems were constructed to study the effects of three chlorine levels of finished water on the growth of biofilm. The experimental results indicated that the heterotrophic plate counts (HPCs) of biofilm for chlorine-free water were approximately 2 and 3 orders of magnitude higher than those for low-chlorine water (0.3-0.5 mg/l Cl2) and high-chlorine water (1.2-1.5 mg/l Cl2), respectively. The difference in HPCs between low-chlorine water and high-chlorine water was below 1 order. Average biofilm formation rates are 325 ATP pg/cm2 per day for chlorine-free water, 159 ATP pg/cm2 per day for low-chlorine water and 118 ATP pg/cm2 per day for high-chlorine water. Scanning electron microscope (SEM) observation showed that bacterial species separated from the biofilm were more complex than from the finished water. The Gram-negative bacteria were dominant.
Skip Nav Destination
Article navigation
Research Article|
March 01 2003
Effects of chlorine level on the growth of biofilm in drinking water pipes Available to Purchase
C. Chu;
C. Chu
1Department of Environmental Engineering, National Chung Hsing University, Taichung 402, Chinese, Taiwan
Search for other works by this author on:
C. Lu;
1Department of Environmental Engineering, National Chung Hsing University, Taichung 402, Chinese, Taiwan
E-mail: [email protected]
Search for other works by this author on:
C.M. Lee;
C.M. Lee
1Department of Environmental Engineering, National Chung Hsing University, Taichung 402, Chinese, Taiwan
Search for other works by this author on:
C. Tasi
C. Tasi
1Department of Environmental Engineering, National Chung Hsing University, Taichung 402, Chinese, Taiwan
Search for other works by this author on:
Water Supply (2003) 3 (1-2): 171–177.
Citation
C. Chu, C. Lu, C.M. Lee, C. Tasi; Effects of chlorine level on the growth of biofilm in drinking water pipes. Water Supply 1 March 2003; 3 (1-2): 171–177. doi: https://doi.org/10.2166/ws.2003.0100
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
eBook
Pay-Per-View Access
$38.00