Abstract
The main goal of this large-scale pilot distribution study was to systematically investigate the impacts of blending different source waters on distribution water qualities. The principal source waters investigated were conventionally treated ground water (G1), surface water processed by enhanced treatment (S1), and desalted seawater by reverse osmosis membranes (RO). Due to the nature of raw water quality and associated treatment processes, G1 water had high alkalinity, while S1 and RO sources were characterized as high sulfate and high chloride waters, respectively. One year of pilot pipe study demonstrated that water quality was significantly deteriorated by increased color when source water blends with characteristics different from historic groundwater were introduced to pipe distribution systems. Elevated color was associated with release of iron corrosion products, mainly from aged unlined cast iron pipes. Iron release increased significantly when exposed to RO and S1 waters: that is, the greater iron release was experienced with alkalinity reduced below the background of G1 water. Lead and copper release to water, on the other hand, enhanced with the application of RO and G1 waters, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 59-71 |
| Number of pages | 13 |
| Journal | Environmental Monitoring and Assessment |
| Volume | 117 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 2006 Aug 25 |
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Keywords
- Advanced surface water treatment
- Pipe corrosion
- Pipe distribution water qualities
- Sea water desalination
- Source water blending
ASJC Scopus subject areas
- Environmental Science(all)
- Environmental Chemistry
Cite this
Monitoring of distribution water qualities under various source water blending. / Taylor, James; Tang, Zhijian; Xiao, Weizhong; Hong, Seungkwan.
In: Environmental Monitoring and Assessment, Vol. 117, No. 1-3, 25.08.2006, p. 59-71.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Monitoring of distribution water qualities under various source water blending
AU - Taylor, James
AU - Tang, Zhijian
AU - Xiao, Weizhong
AU - Hong, Seungkwan
PY - 2006/8/25
Y1 - 2006/8/25
N2 - The main goal of this large-scale pilot distribution study was to systematically investigate the impacts of blending different source waters on distribution water qualities. The principal source waters investigated were conventionally treated ground water (G1), surface water processed by enhanced treatment (S1), and desalted seawater by reverse osmosis membranes (RO). Due to the nature of raw water quality and associated treatment processes, G1 water had high alkalinity, while S1 and RO sources were characterized as high sulfate and high chloride waters, respectively. One year of pilot pipe study demonstrated that water quality was significantly deteriorated by increased color when source water blends with characteristics different from historic groundwater were introduced to pipe distribution systems. Elevated color was associated with release of iron corrosion products, mainly from aged unlined cast iron pipes. Iron release increased significantly when exposed to RO and S1 waters: that is, the greater iron release was experienced with alkalinity reduced below the background of G1 water. Lead and copper release to water, on the other hand, enhanced with the application of RO and G1 waters, respectively.
AB - The main goal of this large-scale pilot distribution study was to systematically investigate the impacts of blending different source waters on distribution water qualities. The principal source waters investigated were conventionally treated ground water (G1), surface water processed by enhanced treatment (S1), and desalted seawater by reverse osmosis membranes (RO). Due to the nature of raw water quality and associated treatment processes, G1 water had high alkalinity, while S1 and RO sources were characterized as high sulfate and high chloride waters, respectively. One year of pilot pipe study demonstrated that water quality was significantly deteriorated by increased color when source water blends with characteristics different from historic groundwater were introduced to pipe distribution systems. Elevated color was associated with release of iron corrosion products, mainly from aged unlined cast iron pipes. Iron release increased significantly when exposed to RO and S1 waters: that is, the greater iron release was experienced with alkalinity reduced below the background of G1 water. Lead and copper release to water, on the other hand, enhanced with the application of RO and G1 waters, respectively.
KW - Advanced surface water treatment
KW - Pipe corrosion
KW - Pipe distribution water qualities
KW - Sea water desalination
KW - Source water blending
UR - http://www.scopus.com/inward/record.url?scp=33747450955&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33747450955&partnerID=8YFLogxK
U2 - 10.1007/s10661-006-7672-8
DO - 10.1007/s10661-006-7672-8
M3 - Article
C2 - 16917698
AN - SCOPUS:33747450955
VL - 117
SP - 59
EP - 71
JO - Environmental Monitoring and Assessment
JF - Environmental Monitoring and Assessment
SN - 0167-6369
IS - 1-3
ER -