Advanced

Estimating microbial risk in treated wastewater for reuse: a case study in Lund, Sweden

Liu, Shuang LU and Persson, Kenneth M LU (2014) In Journal of Water Reuse and Desalination 4(4). p.263-275
Abstract
The potential microbial risk from using treated wastewater is a burning issue to be studied. In Sweden, only a small part of treated wastewater is reused directly, although water reuse could be beneficial. Disinfection is virtually never practised and no protective guidelines for water reuse are found in Sweden. Based on a 1 year monitoring programme of water quality, this paper estimates the microbial risk of Escherichia coli and rotavirus in treated wastewater for different applications of irrigation, landscape, industry, unban non-potable water. A Quantitative Microbial Risk Assessment model is used and the samples were collected from the pond system of Kallby wastewater treatment plant in Lund, Sweden. The results are used to evaluate... (More)
The potential microbial risk from using treated wastewater is a burning issue to be studied. In Sweden, only a small part of treated wastewater is reused directly, although water reuse could be beneficial. Disinfection is virtually never practised and no protective guidelines for water reuse are found in Sweden. Based on a 1 year monitoring programme of water quality, this paper estimates the microbial risk of Escherichia coli and rotavirus in treated wastewater for different applications of irrigation, landscape, industry, unban non-potable water. A Quantitative Microbial Risk Assessment model is used and the samples were collected from the pond system of Kallby wastewater treatment plant in Lund, Sweden. The results are used to evaluate if the treated wastewater after tertiary treatment process combined with pond system can be reused for different applications from a microbial point of view. The risk assessment results show that the studied water is only suitable for agriculture irrigation, while additional treatment or disinfection are needed for other applications since the potential risks are higher than the value that can be accepted. The protective guidelines are discussed based on the process and results of risk assessment and suggestions for establishing a structure of guidelines in Sweden are presented. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
E. coli, guidelines, Quantitative Microbial Risk Assessment, reuse, rotavirus, treated wastewater
in
Journal of Water Reuse and Desalination
volume
4
issue
4
pages
263 - 275
publisher
IWA Publishing
external identifiers
  • wos:000348593400004
  • scopus:84921967826
ISSN
2220-1319
DOI
10.2166/wrd.2014.053
language
English
LU publication?
yes
id
de7de4b3-f30d-4545-af9f-9f8241b07878 (old id 5069105)
date added to LUP
2015-02-25 13:38:12
date last changed
2017-05-07 04:08:35
@article{de7de4b3-f30d-4545-af9f-9f8241b07878,
  abstract     = {The potential microbial risk from using treated wastewater is a burning issue to be studied. In Sweden, only a small part of treated wastewater is reused directly, although water reuse could be beneficial. Disinfection is virtually never practised and no protective guidelines for water reuse are found in Sweden. Based on a 1 year monitoring programme of water quality, this paper estimates the microbial risk of Escherichia coli and rotavirus in treated wastewater for different applications of irrigation, landscape, industry, unban non-potable water. A Quantitative Microbial Risk Assessment model is used and the samples were collected from the pond system of Kallby wastewater treatment plant in Lund, Sweden. The results are used to evaluate if the treated wastewater after tertiary treatment process combined with pond system can be reused for different applications from a microbial point of view. The risk assessment results show that the studied water is only suitable for agriculture irrigation, while additional treatment or disinfection are needed for other applications since the potential risks are higher than the value that can be accepted. The protective guidelines are discussed based on the process and results of risk assessment and suggestions for establishing a structure of guidelines in Sweden are presented.},
  author       = {Liu, Shuang and Persson, Kenneth M},
  issn         = {2220-1319},
  keyword      = {E. coli,guidelines,Quantitative Microbial Risk Assessment,reuse,rotavirus,treated wastewater},
  language     = {eng},
  number       = {4},
  pages        = {263--275},
  publisher    = {IWA Publishing},
  series       = {Journal of Water Reuse and Desalination},
  title        = {Estimating microbial risk in treated wastewater for reuse: a case study in Lund, Sweden},
  url          = {http://dx.doi.org/10.2166/wrd.2014.053},
  volume       = {4},
  year         = {2014},
}