Title
A review on recovery of extracellular biopolymers from flocculent and granular activated sludges: Cognition, key influencing factors, applications, and challenges
Author
Chen, Xingyu (University of Tsukuba)
Lee, Yu Jen (National Taiwan University)
Yuan, Tian (University of Tsukuba)
Lei, Zhongfang (University of Tsukuba)
Adachi, Yasuhisa (University of Tsukuba)
Zhang, Zhenya (University of Tsukuba)
Lin, Y. (TU Delft BT/Environmental Biotechnology) 
van Loosdrecht, Mark C.M. (TU Delft BT/Environmental Biotechnology)
Date
2022
Abstract
A reasonable recovery of excess sludge may shift the waste into wealth. Recently an increasing attention has been paid to the recycling of extracellular biopolymers from conventional and advanced biological wastewater treatment systems such as flocculent activated sludge (AS), bacterial aerobic granular sludge (AGS), and algal-bacterial AGS processes. This review provides the first overview of current research developments and future directions in the recovery and utilization of high value-added biopolymers from the three types of sludge. It details the discussion on the recent evolvement of cognition or updated knowledge on functional extracellular biopolymers, as well as a comprehensive summary of the operating conditions and wastewater parameters influencing the yield, quality, and functionality of alginate-like exopolymer (ALE). In addition, recent attempts for potential practical applications of extracellular biopolymers are discussed, suggesting research priorities for overcoming identification challenges and future prospects.
Subject
Algal-bacterial aerobic granular sludge
Alginate-like exopolymer
Bacterial aerobic granular sludge
Extracellular biopolymer
Flocculent activated sludge
To reference this document use:
http://resolver.tudelft.nl/uuid:e6c67afb-52fa-4875-9a45-3bda5563e462
DOI
https://doi.org/10.1016/j.biortech.2022.127854
Embargo date
2023-07-01
ISSN
0960-8524
Source
Bioresource Technology, 363
Bibliographical note
Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
review
Rights
© 2022 Xingyu Chen, Yu Jen Lee, Tian Yuan, Zhongfang Lei, Yasuhisa Adachi, Zhenya Zhang, Y. Lin, Mark C.M. van Loosdrecht