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Maximazing sludge and biogas production for counteracting global warming
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering (moved 20130630), Water, Sewage and Waste technology.
2010 (English)In: Research and application of new technologies in wastewater treatment and municipal solid waste disposal in Ukraine, Sweden and Poland: Proceedings of a Polish-Swedish-Ukrainian seminar / [ed] E. Plaza, E. Levlin, 2010, 95-104 p.Conference paper (Refereed)
Abstract [en]

Can wastewater treatment contribute to counteract global warming? Increased biogasproduction for substituting fossil fuel is one possibility. However, using maximum amount of thecarbon source for biogas production there will be no carbon source for biological nutrient removal.This will need development of new methods for nutrient removal without carbon source, for whichstruvite precipitation and can anammox be used. Ozone treatment of digested sludge afterdegassing of CO2 with recycling back to the digestion is a promising method to increase biogasproduction from sludge digestion.At anaerobic digestion half of the energy is utilized as biogas and half remains as organic materialin the digested sludge. To eliminate emission of greenhouse gases from digested sludge, allorganic content in the sludge should be oxidized. At Super Critical Water Oxidation SCWO allorganic content is oxidized and the energy can be utilized.The possibility to use sewage sludge to counteract global warming by recycling carbon to deep seesediments should be studied.

Place, publisher, year, edition, pages
2010. 95-104 p.
, Joint Swedish - Polish reports, ISSN 1650-8610
Keyword [en]
Anammox, Anaerobic digestion, Biogas, Energy recovery, Experimental plant Hammarby Sjöstadsverk, Global warming, Nutrient removal, Phosporus recovery, Struvite, Sewage sludge
National Category
Water Engineering
URN: urn:nbn:se:kth:diva-81528ISBN: 978-91-7415-523-5OAI: diva2:497579
Polish-Swedish-Ukrainian seminar, Stockholm, Sweden, September 23 – 25, 2009
QC 20120419Available from: 2012-02-10 Created: 2012-02-10 Last updated: 2012-04-19Bibliographically approved

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