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The potential for waste to biogas in La Paz and El Alto in Bolivia
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Energy and Climate Studies, ECS.ORCID iD: 0000-0002-4321-6894
Center for Promotion of Sustainable Technology (CPTS).
Center for Promotion of Sustainable Technology (CPTS).
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2013 (English)In: 1st International Water Association Conference on HolisticSludge Management, 2013, Västerås Sweden, 2013Conference paper (Refereed)
Abstract [en]

In the cities of La Paz and El Alto, 573 tons of organic material are disposed in landfills every day. These residues can be used to produce biogas and recycle nutrients, thus alleviating environmental impacts related to waste management. Technical solutions are evaluated through a multicriteria analysis with the purpose of defining a strategy for implementing waste-to-biogas in the two cities. As a result, the development for waste-to-biogas-system is defined in three steps. Step 1 consists of an active extraction system of landfill gas in the already existing landfills. Step 2 implies the establishment of a dry-digestion biogas facility based on present waste collection practices, that is, not segregated waste. Step 3 consists of a biogas plant using dry digestion for processing source segregated bio-waste. The economic feasibility of these three steps is evaluated. Despite prevailing fossil fuels subsidies in the country, implementing waste-to-biogas turn out feasible in the country provided the digestate is commercialized as bio-fertilizer or erosion control material and additional services such as waste collection and deposition are computed in the total economy of the biogas production plant.

Place, publisher, year, edition, pages
Keyword [en]
Waste, biogas production, digestate, sorting, knowledge transfer, Bolivia
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-122160OAI: diva2:621140
1st International Water Association Conference on Holistic Sludge Management, 2013, Västerås Sweden

QC 20130710

Available from: 2013-05-13 Created: 2013-05-13 Last updated: 2015-07-09Bibliographically approved

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Lönnqvist, TomasSilveira, Semida
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