Recent advances and viability in sustainable thermochemical conversion of sludge to bio-fuel production

Thermochemical methods are regarded as promising approach for managing sludge, that can achieve resources and energy recovery, volume reduction followed by efficient elimination of microorganisms. This review highlights an extensive description of the implementation of thermochemical technologies involving pyrolysis, gasification and hydrothermal liquefaction for valorisation of sludge into bio-fuel thus reducing the issues related to surplus generation and accumulation of sludge in environment affecting human health followed by rapid depletion of energy resources. The paper addresses working mechanism of thermochemical processes, their implementation for sludge conversion to bio-fuel and common factors affecting the process efficiency. Various studies have proved possible potential of thermochemical techniques for conversion of sludge to bio-fuel obtaining a high yield of bio-fuel and syngas. However, few technical challenges are still there that requires further studies and understanding for a better commercialization on industrial-scale and subsequently the future perspectives have also been analysed. Data collected from existing studies revealed that hydrothermal liquefaction has the efficiency to be proved better than other thermochemical technologies for proper valorisation of sludge resulting in high bio-fuel yield.

Authors
Gururani Prateek , Bhatnagar Pooja , Bisht Bhawna , Jaiswal Krishna Kumar , Kumar Vinod 2, 4 , Kumar Sanjay , Vlaskin Mikhail S. , Grigorenko Anatoly V. , Rindin Kirill G.
Journal
Publisher
Elsevier Ltd
Language
English
Pages
123351
Status
Published
Volume
316
Year
2022
Organizations
  • 1 Department of Biotechnology, Graphic Era (Deemed to be University)
  • 2 Algal Research and Bioenergy Laboratory, Department of Life Sciences, Graphic Era (Deemed to be University)
  • 3 Department of Green Energy Technology, Pondicherry University
  • 4 Peoples’ Friendship University of Russia (RUDN University)
  • 5 Joint Institute for High Temperatures of the Russian Academy of Sciences
Keywords
Sludge; Hydrothermal Liquefaction; Pyrolysis; Gasification; Bio-fuel
Date of creation
08.08.2022
Date of change
08.08.2022
Short link
https://repository.rudn.ru/en/records/article/record/92954/
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