Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
15
pubmed:dateCreated
2010-8-6
pubmed:abstractText
Service reservoirs play an important role in maintaining water quality in distribution systems. Several factors affect the reservoir water quality, including bulk water reactions, stratification, sediment accumulation and wall reactions. It is generally thought that biofilm and sediments can harbour microorganisms, especially in chloraminated reservoirs, but their impact on disinfectant loss on disinfectant loss has not been quantified. Hence, debate exists as to the extent of the problem. To quantify the impact, the reservoir acceleration factor (F(Ra)) is defined. This factor represents the acceleration of chloramine decay arising from all causes, including changes in retention time, assuming that the reservoir is completely mixed. Such an approach quantifies the impact of factors, other than chemical reactions, in the bulk water. Data from three full-scale chloraminated service reservoirs in distribution systems of Sydney, Australia, were analysed to demonstrate the generality of the method. Results showed that in two large service reservoirs (404 x 10(3) m(3) and 82 x 10(3) m(3)) there was minimal impact from biofilm/sediment. However, in a small reservoir (3 x 10(3) m(3)), the biofilm/sediment had significant impact. In both small and large reservoirs, the effect of stratification was significant.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1879-2448
pubmed:author
pubmed:copyrightInfo
(c) 2010 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4463-72
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Development and application of a method for quantifying factors affecting chloramine decay in service reservoirs.
pubmed:affiliation
Department of Civil and Construction Engineering, Curtin University of Technology, GPO Box U1987, Perth, Western Australia 6845, Australia. S.Sathasivan@curtin.edu.au
pubmed:publicationType
Journal Article