Rapid granulation of aerobic granular sludge in an integrated moving bed biofilm reactor-membrane bioreactor: Effects and mechanism of Streptomyces cellulosus microspheres

被引：1
|
作者：
Zhang, Huanlong [1 ]
Xu, Yue [1 ]
Bin, Liying [1 ]
Li, Ping [1 ]
Fu, Fenglian [1 ]
Huang, Shaosong [1 ]
Tang, Bing [1 ,2 ,3 ]
机构：
[1] Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China
[2] Guangdong Univ Technol, Guangzhou 510006, Peoples R China
[3] Guangzhou Higher Educ Mega Ctr, 100 Waihuan Xi Rd, Guangzhou 510006, Peoples R China
来源：
BIORESOURCE TECHNOLOGY REPORTS | 2023年 / 22卷
关键词：
Aerobic granular sludge; Functional microorganism; Rapid granulation; Streptomyces cellulosus microspheres; Membrane bioreactor; MULTILAYER PERCEPTRON; CROP RESIDUES; BIOMASS;
D O I：
10.1016/j.biteb.2023.101412
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
This work focuses on revealing the effects of functional microorganism on rapid granulation process of aerobic granular sludge (AGS) in an integrated moving bed biofilm reactor-membrane bioreactor (MBR), and tries to illustrate the related mechanism. The result verified that the functional microorganism, Streptomyces cellulosus microspheres (Scms), could promote the rapid granulation of AGS within only 4 days, and the average size of AGS kept at around 1850 mu m on day 80 and showed no obvious reduction in the size even for operating over 3 months. Scms first reduced the negative surface charge on sludge particles, which was beneficial to the aggregation of floc sludge, and then caused the changes in the structure of AGS and the composition of microbial community within the system. Under these effects, the formed large and stable AGS promoted a higher and more stable efficiency in the removal of COD (> 93 %).
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页数：10
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