Life cycle assessment of wastewater treatment in developing countriesCitation formats

Standard

Life cycle assessment of wastewater treatment in developing countries : A review. / Gallego Schmid, Alejandro; Tarpani, Raphael.

In: Water Research , Vol. 153, 15.04.2019, p. 63-79.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Author

Bibtex

@article{095af6cdac324de39103478bd7ce5e08,
title = "Life cycle assessment of wastewater treatment in developing countries: A review",
abstract = "Within developing countries, wastewater treatment (WWT) has improved in recent years but remains a high priority sustainability challenge. Accordingly, life cycle assessment (LCA) studies have recently started to analyse the environmental impacts of WWT technologies on the specific context of less developed countries, mainly in China and India. This work presents a comprehensive review of this knowledge with the aim of critically analysing the main conclusions, gaps and challenges for future WWT-related LCAs in developing countries. The most commonly assessed technologies in the 43 reviewed articles are different variations of activated sludge and extensive treatments applied in decentralized systems; however, studies focused on advanced technologies or new sources ofpollution(e.g. micropollutants) are still lacking. Goal and system boundaries are normally clearly defined, butsignificant stages for some technologies such as the construction and sludge management are frequentlynot included and functional units should be defined accordingly to specific conditions in developingcountries. At the inventory level, a more concise description of sources and technical parameters wouldgreatly improve the quality of the LCAs along with accountability of direct greenhouse gas emissions.Eutrophication and global warming are the two most commonly assessed impacts; however, thecalculation of terrestrial ecotoxicity when the sludge is used for agricultural purposes, of water use and ofthe land use change impacts associated to extensive technologies should be encouraged. The estimationof more site-specific databases, characterization factors (especially for eutrophication) or normalizationand weighting values combined with more affordable access to background databases and LCA software,would deeply increase the accuracy of WWT-related LCAs in developing countries. An increased usage ofthe uncertainty analysis should be encouraged to assess the influence of these gaps in the final interpretation of the results. The review finishes with a summary of the main challenges and research gapsidentified and with specific guid",
author = "{Gallego Schmid}, Alejandro and Raphael Tarpani",
year = "2019",
month = apr,
day = "15",
doi = "10.1016/j.watres.2019.01.010",
language = "English",
volume = "153",
pages = "63--79",
journal = "Water Research ",
issn = "1879-2448",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Life cycle assessment of wastewater treatment in developing countries

T2 - A review

AU - Gallego Schmid, Alejandro

AU - Tarpani, Raphael

PY - 2019/4/15

Y1 - 2019/4/15

N2 - Within developing countries, wastewater treatment (WWT) has improved in recent years but remains a high priority sustainability challenge. Accordingly, life cycle assessment (LCA) studies have recently started to analyse the environmental impacts of WWT technologies on the specific context of less developed countries, mainly in China and India. This work presents a comprehensive review of this knowledge with the aim of critically analysing the main conclusions, gaps and challenges for future WWT-related LCAs in developing countries. The most commonly assessed technologies in the 43 reviewed articles are different variations of activated sludge and extensive treatments applied in decentralized systems; however, studies focused on advanced technologies or new sources ofpollution(e.g. micropollutants) are still lacking. Goal and system boundaries are normally clearly defined, butsignificant stages for some technologies such as the construction and sludge management are frequentlynot included and functional units should be defined accordingly to specific conditions in developingcountries. At the inventory level, a more concise description of sources and technical parameters wouldgreatly improve the quality of the LCAs along with accountability of direct greenhouse gas emissions.Eutrophication and global warming are the two most commonly assessed impacts; however, thecalculation of terrestrial ecotoxicity when the sludge is used for agricultural purposes, of water use and ofthe land use change impacts associated to extensive technologies should be encouraged. The estimationof more site-specific databases, characterization factors (especially for eutrophication) or normalizationand weighting values combined with more affordable access to background databases and LCA software,would deeply increase the accuracy of WWT-related LCAs in developing countries. An increased usage ofthe uncertainty analysis should be encouraged to assess the influence of these gaps in the final interpretation of the results. The review finishes with a summary of the main challenges and research gapsidentified and with specific guid

AB - Within developing countries, wastewater treatment (WWT) has improved in recent years but remains a high priority sustainability challenge. Accordingly, life cycle assessment (LCA) studies have recently started to analyse the environmental impacts of WWT technologies on the specific context of less developed countries, mainly in China and India. This work presents a comprehensive review of this knowledge with the aim of critically analysing the main conclusions, gaps and challenges for future WWT-related LCAs in developing countries. The most commonly assessed technologies in the 43 reviewed articles are different variations of activated sludge and extensive treatments applied in decentralized systems; however, studies focused on advanced technologies or new sources ofpollution(e.g. micropollutants) are still lacking. Goal and system boundaries are normally clearly defined, butsignificant stages for some technologies such as the construction and sludge management are frequentlynot included and functional units should be defined accordingly to specific conditions in developingcountries. At the inventory level, a more concise description of sources and technical parameters wouldgreatly improve the quality of the LCAs along with accountability of direct greenhouse gas emissions.Eutrophication and global warming are the two most commonly assessed impacts; however, thecalculation of terrestrial ecotoxicity when the sludge is used for agricultural purposes, of water use and ofthe land use change impacts associated to extensive technologies should be encouraged. The estimationof more site-specific databases, characterization factors (especially for eutrophication) or normalizationand weighting values combined with more affordable access to background databases and LCA software,would deeply increase the accuracy of WWT-related LCAs in developing countries. An increased usage ofthe uncertainty analysis should be encouraged to assess the influence of these gaps in the final interpretation of the results. The review finishes with a summary of the main challenges and research gapsidentified and with specific guid

U2 - 10.1016/j.watres.2019.01.010

DO - 10.1016/j.watres.2019.01.010

M3 - Article

VL - 153

SP - 63

EP - 79

JO - Water Research

JF - Water Research

SN - 1879-2448

ER -