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Erschienen in: Clean Technologies and Environmental Policy 2/2023

22.10.2021 | Original Paper

Effect of pre-treatment on mesophilic anaerobic co-digestion of fruit, food and vegetable waste

verfasst von: Amit Kumar Chaurasia, Puneet Siwach, Ravi Shankar, Prasenjit Mondal

Erschienen in: Clean Technologies and Environmental Policy | Ausgabe 2/2023

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Abstract

Pre-treatment of fruit, food and vegetable waste materials could enhance the biogas generation and waste stabilization in a shorter time. Effect of alkaline, hydrothermal, thermal and ultrasonication pre-treatment of fruit, food and vegetable waste (FFVW) on the anaerobic co-digestion (ACD) was assessed in terms of total solid (TS), volatile solid (VS) reduction and biogas/methane production. The mesophilic anaerobic co-digestion of pre-treated FFVW with cow dung was performed in a laboratory scale 1L batch digester for 30 days at 40 ± 2 °C temperature. Performance of ultrasonication process is found more economical and efficient pre-treatment over other pre-treatment processes such as thermal, alkaline and hydrothermal processes. Obtained results show that ultrasonication pre-treatment process enhances the biogas and biomethane production by 29.4% and 18.4%, respectively. During ultrasonication pre-treatment, 16.89% TS and 19.44% VS removal are noted. While 106.81 ml biogas/gVS and 29.92 ml CH4/gVS are generated during ACD of ultrasonicated FFVW. In addition, considerable enhancement in biogas production was noted with alkaline pre-treatment but it is least economical. Economic analysis shows that the cost for the production of biogas through anaerobic co-digestion from untreated, ultrasonication, alkaline, hydrothermal and thermal pre-treated FFVW are 2.45, 3.12, 19.33, 5.52 and 22.72 USDs/ton FFVW, respectively. Energy study also indicates the lesser energy consumption and higher biogas production in case of ultrasonication pre-treatment.

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Metadaten
Titel
Effect of pre-treatment on mesophilic anaerobic co-digestion of fruit, food and vegetable waste
verfasst von
Amit Kumar Chaurasia
Puneet Siwach
Ravi Shankar
Prasenjit Mondal
Publikationsdatum
22.10.2021
Verlag
Springer Berlin Heidelberg
Erschienen in
Clean Technologies and Environmental Policy / Ausgabe 2/2023
Print ISSN: 1618-954X
Elektronische ISSN: 1618-9558
DOI
https://doi.org/10.1007/s10098-021-02218-5

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