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Influence of mixing on anaerobic digestion efficiency in stirred tank digesters: A review.

Authors
  • Kariyama, Ibrahim Denka1
  • Zhai, Xiaodong1
  • Wu, Binxin2
  • 1 Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, China. , (China)
  • 2 Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, China. Electronic address: [email protected] , (China)
Type
Published Article
Journal
Water research
Publication Date
Oct 15, 2018
Volume
143
Pages
503–517
Identifiers
DOI: 10.1016/j.watres.2018.06.065
PMID: 29990745
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

A comprehensive review was carried out on the influence of mixing on anaerobic digestion (AD) efficiency in stirred tank anaerobic digesters. Though traditionally, stirred tank digesters operated as continuous stirred tank reactors (CSTRs), this review revealed that there is no motivation to continue to operate stirred tank anaerobic digesters as CSTRs if AD energy efficiency is to be improved. AD energy production efficiency can be achieved with optimized intermittent mixing. AD efficiency should include an assessment of the net energy production efficiency and should be the criteria in determining the mixing mode, mixing intensity, mixing time and mixing interval for every anaerobic digestion operating plan. Copyright © 2018 Elsevier Ltd. All rights reserved.

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