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Selecting sustainable sewage sludge reuse options through a systematic assessment framework: Methodology and case study in Latin America
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. United Nations University, Germany.ORCID iD: 0000-0002-0367-5332
United Nations University, Germany.ORCID iD: 0000-0003-0690-0942
United Nations University, Germany.
United Nations University, Germany.
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2020 (English)In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 242, p. 1-12, article id 118389Article in journal (Refereed) Published
Abstract [en]

Sewage sludge is a by-product of wastewater treatment and has a complex composition including organic matter and nutrients. The recovery of the useful components can partially buffer the continuous depletion of natural resources. However, due to a range of many complex variables, such as concerns on safe-use practices and lack of technical capacities, sludge recovery is classified as a wicked problem. To facilitate the decision-making process, this study intends to provide a decision support framework (DSF) to guide decision making towards selecting sustainable options to handle sewage sludge in Latin America. The framework was tested and refined through a case study in Panajachel, Lake Atitlan, Guatemala. Sludge disposal solutions are missing in the municipality and the pathogen content highly exceeds national and international standards. The framework was used to evaluate possible recovery scenarios. The results show that the most sustainable ways to use sewage sludge in Panajachel are through agricultural use and soil conditioning. Composting is suggested as a conversion process to eliminate pathogens and obtain stable fertilisers.

Place, publisher, year, edition, pages
Elsevier, 2020. Vol. 242, p. 1-12, article id 118389
Keywords [en]
Sewage sludge, Latin America, sustainability, beneficial use, decision support framework
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-89357DOI: 10.1016/j.jclepro.2019.118389ISI: 000491240100109OAI: oai:DiVA.org:lnu-89357DiVA, id: diva2:1355903
Available from: 2019-09-30 Created: 2019-09-30 Last updated: 2019-11-08Bibliographically approved

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Ferrans, Laura

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