Integrated Sustainable Solutions - Co-digestion of Solid Waste at WWTPs and the BTA Process as a Pre-treatment Step
Abstract:Traditionally, anaerobic digestion has been applied as a single substrate, single purpose treatment step and is commonly used in municipal, industrial and agricultural treatment facilities. Over the past two decades, anaerobic digestion has received growing attention serving as a multi-purpose multi-benefit processing step to divert organic waste from landfill, produce renewable energy, combat global climate change, and maintain or improve digestate fertilizer quality. Municipal wastewater treatment plants with excess digester capacity may be able to co-digest a wide range of organic feedstock with promising biogas yields. Well-proven “wet” pre-treatment technologies such as the Biotechnische Abfallverwertung (BTA) Process are available to pretreat organic wastes resources at wastewater treatment plants by effectively removing contaminates such as glass, plastics, and stones, and to produce a homogeneous organic-rich pulp ready for co-digestion.
Keywords: BTA Process; OFMSW; SSO biogas; anaerobic digestion; co-digestion; co-fermentation; digester gas; food scraps; grit removal system; organic fraction of municipal solid waste; pulper; renewable energy; source-separated organic waste; wastewater treatment
Document Type: Research Article
Publication date: 2009-01-01
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