Determination of methane potential of mixtures composed of sewage sludge, organic fraction of municipal waste and grease trap sludge using biochemical methane potential assays. A comparison of BMP tests and semi-continuous trial results

Anna Grosser

Energy, 2018, vol. 143, issue C, 488-499

Abstract: The main objective of this study was to evaluate the effect of simultaneous addition of grease trap sludge and organic fraction of municipal waste on anaerobic digestion of sewage sludge. Batch experiments were performed under mesophilic conditions to determine the biochemical methane potential and methane production rate of raw material as well as their mixtures. The optimum mixing ratio of sewage sludge with grease trap sludge and organic fraction of municipal waste was 4:3:3. For this mixture methane yield was 327 LCH4/kg VS, which is higher by approximately 130% than that of sewage sludge alone. Additionally, selected models were used to analyze the kinetics of anaerobic co-digestion.

Keywords: Co-substrate; Co-digestion; Sewage sludge; Grease trap sludge; Organic fraction of municipal waste; Methane production (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:143:y:2018:i:c:p:488-499

DOI: 10.1016/j.energy.2017.11.010

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