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Licensed Unlicensed Requires Authentication Published by De Gruyter March 26, 2020

Opportunities for holistic waste stream valorization from food waste treatment facilities: a review

  • Abdulmoseen Segun Giwa

    Abdulmoseen Segun Giwa received the PhD degree from the School of Environment, Tsinghua University, Beijing, China. He is now working as a Research Assistant Professor in the Green Intelligence Environmental School, Yangtze Normal University, Chongqing, China. His research interests include wastewater treatment, sludge management, food waste, and biomass valorization for resource recovery with pyrolysis and anaerobic digester technologies.

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    , Nasir Ali

    Nasir Ali received the PhD degree from the highly reputed Xiamen University, China, in 2015, majoring in biochemistry and molecular biology. He is currently a Postdoctoral Fellow at the Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China, under CAS President’s International Fellowship Initiative (PIFI). Previously, he was a Postdoctoral Fellow in the School of Environment, Tsinghua University, Beijing, China. His research interests include biomass treatment, cellulose/hemicellulose degradation enzymes, and various associated beneficial bio-products.

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    , Mohammadtaghi Vakili

    Mohammadtaghi Vakili received the PhD degree in environmental technology from Universiti Sains Malaysia, Malaysia, in 2016. He is presently working as a Scientific Researcher in the Green Intelligence Environmental School, Yangtze Normal University, China. His research interests include water/wastewater treatment, adsorption, and ion-exchange. He has published several review articles and regular research papers in journals of international repute and presented his research work in various national and international conferences.

    , Xiaogang Guo , Dongsheng Liu and Kaijun Wang

    Kaijun Wang is a Professor in the School of Environment, Tsinghua University, Beijing, China. He has an exceptional approach to innovative research and academic study. He has demonstrated his academic and industrial aptitude in technological advancement, most notably in the areas of sewage sludge, food waste, and numerous biomass fraction treatments via pyrolysis and high-performance anaerobic reactors.

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Abstract

Difficult-to-biodegrade fractions (DBFs) generated from the biological treatment of food waste (FW) account for approximately 30% of the actual waste. These wastes are difficult to degrade or are considered indigestible residues of the aerobic and anaerobic fermentation treatment of FW treatment facilities. The currently applied disposal routes for DBFs exert environmental pressure and underutilize waste as resources. Therefore, these challenges must be overcome. An innovative strategy for the enhancement of the energy value and beneficial products from FW and the associated DBFs is proposed in this review. We propose conceptual future optimization routes for FW and DBFs via three types of technology integration. Pyrolysis techniques thoroughly treat DBFs to produce various value-added bio-energy products, such as pyrogenic bio-char, syngas, and bio-oil. Anaerobic digestion treats FW while utilizing pyrolysis products for robust performance enhancement and bio-methane upgrade. This holistic route offers conceptual information and proper direction as crucial knowledge for real application to harness the inherent resources of waste streams generated from FW treatment facilities.

About the authors

Abdulmoseen Segun Giwa

Abdulmoseen Segun Giwa received the PhD degree from the School of Environment, Tsinghua University, Beijing, China. He is now working as a Research Assistant Professor in the Green Intelligence Environmental School, Yangtze Normal University, Chongqing, China. His research interests include wastewater treatment, sludge management, food waste, and biomass valorization for resource recovery with pyrolysis and anaerobic digester technologies.

Nasir Ali

Nasir Ali received the PhD degree from the highly reputed Xiamen University, China, in 2015, majoring in biochemistry and molecular biology. He is currently a Postdoctoral Fellow at the Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China, under CAS President’s International Fellowship Initiative (PIFI). Previously, he was a Postdoctoral Fellow in the School of Environment, Tsinghua University, Beijing, China. His research interests include biomass treatment, cellulose/hemicellulose degradation enzymes, and various associated beneficial bio-products.

Mohammadtaghi Vakili

Mohammadtaghi Vakili received the PhD degree in environmental technology from Universiti Sains Malaysia, Malaysia, in 2016. He is presently working as a Scientific Researcher in the Green Intelligence Environmental School, Yangtze Normal University, China. His research interests include water/wastewater treatment, adsorption, and ion-exchange. He has published several review articles and regular research papers in journals of international repute and presented his research work in various national and international conferences.

Kaijun Wang

Kaijun Wang is a Professor in the School of Environment, Tsinghua University, Beijing, China. He has an exceptional approach to innovative research and academic study. He has demonstrated his academic and industrial aptitude in technological advancement, most notably in the areas of sewage sludge, food waste, and numerous biomass fraction treatments via pyrolysis and high-performance anaerobic reactors.

Acknowledgment

This work was supported by the Biomass and Waste Water Pollution Control Grant (no. 01160056) of the Green Intelligence Environmental School, Yangtze Normal University, and The China National Key Technology Support Program (grant no. 2014BAC27B01).

  1. Conflict of interest: The authors declare no conflict of interest.

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Received: 2019-09-24
Accepted: 2020-02-22
Published Online: 2020-03-26
Published in Print: 2022-01-27

©2020 Walter de Gruyter GmbH, Berlin/Boston

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