A critical review of organic manure biorefinery models toward sustainable circular bioeconomy: Technological challenges, advancements, innovations, and future perspectives

Mukesh Kumar Awasthi, Surendra Sarsaiya, Steven Wainaina, Karthik Rajendran, Sumit Kumar, Wang Quan, Yumin Duan, Sanjeev Kumar Awasthi, Hongyu Chen, Ashok Pandey, Zengqiang Zhang, Archana Jain and Mohammad J. Taherzadeh

Renewable and Sustainable Energy Reviews, 2019, vol. 111, issue C, 115-131

Abstract: Total livestock emissions account for up to 14.5% of man-made greenhouse gas emissions. Counteractive measures, such as circular economy concepts and negative emission technologies are necessary to limit global warming below 1.5 °C. Possible treatment options for organic manure include anaerobic digestion, combustion, gasification, hydrothermal liquefaction and composting. The choice of treatment varies depending on the economics, the requirement of a specific product, and sociocultural factors. Commercialization of these treatments needs a blend of appropriate technology, feasible economics, policy support and agreeable socio-cultural conditions. Key findings of this study include the following: 1. Increasing scientific awareness about manure management and treatment; 2. Building a sustainable cooperative model to commercialize technologies; 3. Creating a market for manure recycling products; 4. The role of policy in supporting technologies and consumers; and 5. The codigestion of substrates for better efficacy. Current trends show minimal actions in place as opposed to the high-rate of acceleration that is necessary.

Keywords: Anaerobic digestion; Organic manure; Pretreatment; Codigestion; Organic loading rate; Bioaugmentation (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (23)

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DOI: 10.1016/j.rser.2019.05.017

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