Distribution system materials may be among the most important
factors influencing the growth of biofilms in distribution
systems. However, relatively little research has been
done to demonstrate the relationships between pipe materials
and linings in the presence of varied organic carbon levels and
disinfectants on biofilm growth and subsequent microbial water
quality.
Research in this area is of increasing importance to water
utilities as aging sections of distribution systems must be repaired
or replaced and networks must be expanded to meet a growing
consumer base.
For utilities seeking methods to control distribution system
biofilm, two alternatives are available. These include the reduction
in organic carbon and/or the replacement/relining of iron pipe in
their distribution systems. If organic carbon is high, pipe replacement
or relining may be a good option for reducing biofilm problems.
However, the economics of this choice must be weighed against
treatment changes leading to the reduction in organic carbon. Includes 25 references, tables, figures.
| Edition : | Vol. 95 - No. 7 |
| File Size : | 1
file
, 240 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 15 |
| Published : | 07/01/2003 |
