A review on recovery of extracellular biopolymers from flocculent and granular activated sludges: Cognition, key influencing factors, applications, and challenges

被引：37
作者：
Chen, Xingyu [1 ]
Lee, Yu-Jen [2 ]
Yuan, Tian [1 ]
Lei, Zhongfang [1 ]
Adachi, Yasuhisa [1 ]
Zhang, Zhenya [1 ]
Lin, Yuemei [3 ]
van Loosdrecht, Mark C. M. [3 ]
机构：
[1] Univ Tsukuba, Fac Life & Environm Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058572, Japan
[2] Natl Taiwan Univ, Dept Chem Engn, Taipei 10617, Taiwan
[3] Delft Univ Technol, Dept Biotechnol, Van Der Maasweg 9, NL-2629 HZ Delft, Netherlands
来源：
BIORESOURCE TECHNOLOGY | 2022年 / 363卷
关键词：
Flocculent activated sludge; Bacterial aerobic granular sludge; Algal -bacterial aerobic granular sludge; Alginate -like exopolymer; Extracellular biopolymer; ALGINATE-LIKE EXOPOLYSACCHARIDES; HYDRODYNAMIC SHEAR FORCE; POLYMERIC SUBSTANCES EPS; BIOSYNTHESIS; PERFORMANCE; REMOVAL; QUALITY; CARBON;
D O I：
10.1016/j.biortech.2022.127854
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
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 algalbacterial 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.
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页数：13
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