Biotechnological strategies for bio-transforming biosolid into resources toward circular bio-economy: A review

Mukesh Kumar Awasthi, Ekta Singh, Parameswaran Binod, Raveendran Sindhu, Surendra Sarsaiya, Aman Kumar, Hongyu Chen, Yumin Duan, Ashok Pandey, Sunil Kumar, Mohammad J. Taherzadeh, Ji Li and Zengqiang Zhang

Renewable and Sustainable Energy Reviews, 2022, vol. 156, issue C

Abstract: Biosolids are the biological organic matter extracted from various treatment processes of wastewater which are considered as a rich source of energy and nutrients. The most commonly used method for the disposal of biosolids is landfilling. But this causes the loss of valuable nutrients and creates environmental issues. Circular economy approaches provide a better way for utilization these resources in a sustainable manner. This allows maximum utilization of resources and many natural resources can be preserved and utilized for future generations. The present review provides a comprehensive illustration of biotechnological approaches for the utilization of biosolids. Various process strategies for the utilization of biosolids for the production of energy, fuels and value-added products are discussed. The utilization of this rich organic matter under circular economy has also been described in detail.

Keywords: Circular bioeconomy; Bio-solid; Biotransformation; Biofuels; Bioconversion (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1016/j.rser.2021.111987

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