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Impact of treatment plant management on human health and ecological risks from wastewater irrigation in developing countries - case studies from Cochabamba, Bolivia

Cossio, Claudia and Perez Mercado, Luis Fernando and Norrman, Jenny and Dalahmeh, Sahar and Vinnerås, Björn and Mercado, Alvaro and Mcconville, Jennifer (2021). Impact of treatment plant management on human health and ecological risks from wastewater irrigation in developing countries - case studies from Cochabamba, Bolivia. International Journal of Environmental Health Research. 31 , 355-373
[Research article]

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Abstract

Wastewater irrigation is a common practice in developing countries due to water scarcity and increasing demand for food production. However, there are health risks and ecological risks associated with this practice. Small-scale wastewater treatment plants (WWTPs) intend to decrease these risks but still face management challenges. This study assessed how the management status of five small-scale WWTPs in Cochabamba, Bolivia affects health risks associated with consumption of lettuce and ecological risks due to the accumulation of nutrients in the soil for lettuce and maize crops. Risk simulations for three wastewater irrigation scenarios were: raw wastewater, actual effluent and expected effluent. Results showed that weak O&M practices can increase risk outcomes to higher levels than irrigating with raw wastewater. Improving O&M to achieve optimal functioning of small-scale WWTPs can reduce human health risks and ecological risks up to 2 log(10) DALY person(-1) year(-1) and to 2 log(10) kg nitrogen ha(-1) accumulated in soil, respectively.

Authors/Creators:Cossio, Claudia and Perez Mercado, Luis Fernando and Norrman, Jenny and Dalahmeh, Sahar and Vinnerås, Björn and Mercado, Alvaro and Mcconville, Jennifer
Title:Impact of treatment plant management on human health and ecological risks from wastewater irrigation in developing countries - case studies from Cochabamba, Bolivia
Series Name/Journal:International Journal of Environmental Health Research
Year of publishing :2021
Volume:31
Page range:355-373
Number of Pages:19
Publisher:TAYLOR AND FRANCIS LTD
ISSN:0960-3123
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Environmental Sciences related to Agriculture and Land-use
(A) Swedish standard research categories 2011 > 3 Medical and Health Sciences > 303 Health Sciences > Public Health, Global Health, Social Medicine and Epidemiology
Keywords:Wastewater irrigation, small-scale WWTPs, operation and maintenance, quantitative microbial risk assessment, ecological risks
URN:NBN:urn:nbn:se:slu:epsilon-p-101688
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-101688
Additional ID:
Type of IDID
DOI10.1080/09603123.2019.1657075
Web of Science (WoS)000484504000001
ID Code:23398
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Energy and Technology
Deposited By: SLUpub Connector
Deposited On:03 May 2021 18:45
Metadata Last Modified:04 May 2021 05:01

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