Integrated food waste and sewage treatment - A better approach than conventional food waste-sludge co-digestion for higher energy recovery via anaerobic digestion.

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ID: 25514
2019
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Abstract
This work proposes a new treatment approach involving both food waste disposal and sewerage treatment called MOWFAST i.e. Municipal Organic Waste management by combined Food waste disposal and Sewerage Treatment. MOWFAST involves mixing of food waste directly with raw sewage instead of separate addition to sludge and their combined anaerobic digestion (AD). Compared to conventional sludge digestion, MOWFAST exhibited better digestion capability and allowed a greater degradation of organic material along with higher production of methanogenic-favourable products from the beginning of digestion. This resulted in producing higher specific methane yields (7.86 LCH/kg VS versus 0.95 LCH/kg VS) and 1.4-fold higher cumulative methane yield over sludge AD. Furthermore, compared with conventional food waste-sludge co-digestion, MOWFAST gave higher solubilization of organic material (0.82 g sCOD/g VS versus 0.23 g sCOD/g VS) and specific methane yields (7.86 LCH/kg VS versus 3.2 LCH/kg VS). This proves its feasibility for digestion and methane generation potential.
Reference Key
kaur2019integratedbioresource Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Kaur, Guneet;Luo, Liwen;Chen, Guanghao;Wong, Jonathan W C;
Journal Bioresource technology
Year 2019
DOI
S0960-8524(19)30928-9
URL
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