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Anaerobic Codigestion of Municipal Wastewater Treatment Plant Sludge with Food Waste: A Case Study
Joint Authors
Othman, Maazuza Z.
Zahan, Zubayeda
Rajendram, William
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-09-05
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The aim of this study was to assess the effects of the codigestion of food manufacturing and processing wastes (FW) with sewage sludge (SS), that is, municipal wastewater treatment plant primary sludge and waste activated sludge.
Bench scale mesophilic anaerobic reactors were fed intermittently with varying ratio of SS and FW and operated at a hydraulic retention time of 20 days and organic loading of 2.0 kg TS/m3·d.
The specific biogas production (SBP) increased by 25% to 50% with the addition of 1%–5% FW to SS which is significantly higher than the SBP from SS of 284 ± 9.7 m L N / g VS added.
Although the TS, VS, and tCOD removal slightly increased, the biogas yield and methane content improved significantly and no inhibitory effects were observed as indicated by the stable pH throughout the experiment.
Metal screening of the digestate suggested the biosolids meet the guidelines for use as a soil conditioner.
Batch biochemical methane potential tests at different ratios of SS : FW were used to determine the optimum ratio using surface model analysis.
The results showed that up to 47-48% FW can be codigested with SS.
Overall these results confirm that codigestion has great potential in improving the methane yield of SS.
American Psychological Association (APA)
Zahan, Zubayeda& Othman, Maazuza Z.& Rajendram, William. 2016. Anaerobic Codigestion of Municipal Wastewater Treatment Plant Sludge with Food Waste: A Case Study. BioMed Research International،Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1099064
Modern Language Association (MLA)
Zahan, Zubayeda…[et al.]. Anaerobic Codigestion of Municipal Wastewater Treatment Plant Sludge with Food Waste: A Case Study. BioMed Research International No. 2016 (2016), pp.1-13.
https://search.emarefa.net/detail/BIM-1099064
American Medical Association (AMA)
Zahan, Zubayeda& Othman, Maazuza Z.& Rajendram, William. Anaerobic Codigestion of Municipal Wastewater Treatment Plant Sludge with Food Waste: A Case Study. BioMed Research International. 2016. Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1099064
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1099064