Effect of direct enzyme addition on the anaerobic digestion of OFMSW

Yagmur Kabakci*, Sadiye Kosar, Ozgur Dogan, Fehmi Gorkem Uctug, Osman Atilla Arikan

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Özet

The organic fraction of municipal solid waste (OFMSW) has high biodegradability and is a good feedstock for anaerobic digestion (AD). However, the solubilization of OFMSW is a limiting factor for AD. In this study, enzyme treatment was investigated to increase the conversion of complex materials of OFMSW into soluble fractions. Six different concentrations (0.15, 0.3, 0.5, 1.0, 1.5 and 3.0 mg/VSadded) of the alpha amylase enzyme (obtained from Aspergillus oryzae) were directly added as a powder and automated biochemical methane potential (BMP) tests were performed under thermophilic conditions. According to BMP tests, the methane (CH4) yield increased up to 17.5 % and the lag phase decreased to 19.3 % after enzyme addition. The highest CH4 yield and shortest lag phase were obtained when 0.5 mg of enzyme/VSadded was added to the reactor. These findings suggest that direct alpha amylase enzyme application obtained from Aspergillus oryzae can be used to increase biogas production by enhancing solubilization of OFMSW for AD.

Orijinal dilİngilizce
Makale numarası101415
DergiSustainable Chemistry and Pharmacy
Hacim37
DOI'lar
Yayın durumuYayınlandı - Şub 2024

Bibliyografik not

Publisher Copyright:
© 2023 Elsevier B.V.

Finansman

The authors would like to express their appreciation for the research support given to the Circular Economy and Resource Efficiency Research Group by the Scientific and Technological Research Institution of Turkey (TUBITAK). The Istanbul Technical University , Turkey, Scientific Research Projects: Yagmur Kabakci [Project No: MDK-2019-42183 ], for their support, is gratefully acknowledged by the authors. The authors would like to thank the Duzce Solid Waste Association for their support of the project. The authors would like to express their appreciation for the research support given to the Circular Economy and Resource Efficiency Research Group by the Scientific and Technological Research Institution of Turkey (TUBITAK). The Istanbul Technical University, Turkey, Scientific Research Projects: Yagmur Kabakci [Project No: MDK-2019-42183], for their support, is gratefully acknowledged by the authors. The authors would like to thank the Duzce Solid Waste Association for their support of the project.

FinansörlerFinansör numarası
Duzce Solid Waste Association
Scientific and Technological Research Institution of Turkey
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu
Istanbul Teknik ÜniversitesiMDK-2019-42183

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