scholarly journals Assessment of microbial products in the biosorption process of Cu(II) onto aerobic granular sludge: Extracellular polymeric substances contribution and soluble microbial products release

2018 ◽  
Vol 527 ◽  
pp. 87-94 ◽  
Author(s):  
Linxian Huang ◽  
Meilin Li ◽  
Guangchao Si ◽  
Jinglin Wei ◽  
Huu Hao Ngo ◽  
...  
Keyword(s):  
Extracellular Polymeric Substances ◽  
Granular Sludge ◽  
Aerobic Granular Sludge ◽  
Soluble Microbial Products ◽  
Biosorption Process ◽  
Microbial Products

Production of soluble microbial products in aerobic granular sludge system under the stress of toxic 4-chlorophenol

2017 ◽  
Vol 38 (24) ◽  
pp. 3192-3200 ◽  
Author(s):  
Heng Dong ◽  
Dong Wei ◽  
Siyu Wang ◽  
Xiaodong Wang ◽  
Tao Yan ◽  
...  
Keyword(s):  
Granular Sludge ◽  
Aerobic Granular Sludge ◽  
Soluble Microbial Products ◽  
Microbial Products

Effect of Ce3+ on soluble microbial products production in anaerobic granular sludge digestion

2011 ◽  
Vol 64 (7) ◽  
pp. 1459-1465
Author(s):  
Bo Fu ◽  
Rui Liang ◽  
Qing Xia ◽  
Lili Ding ◽  
Ke Xu ◽  
...  
Keyword(s):  
Extracellular Polymeric Substances ◽  
Oxygen Demand ◽  
Granular Sludge ◽  
Cell Lysis ◽  
Bulk Solution ◽  
Anaerobic Sludge ◽  
Anaerobic Granular Sludge ◽  
Soluble Microbial Products ◽  
Sludge Digestion ◽  
Microbial Products

Upflow anaerobic sludge bed reactors fed on glucose were used to investigate the effects of Ce3+ on soluble microbial products (SMP) production, which is the majority of the residual chemical oxygen demand present in the effluent. It was found that Ce3+ concentration of 0.05 mg/L had no significant effect on the amount of SMP production, whereas that of 1 mg/L led to the increase in SMP production. The molecular-weight distribution and carbohydrate analysis indicated that an increase in SMP production may be partly attributed to the release of extracellular polymeric substances (EPS) into the bulk solution resulted from cerium toxicity, and the nucleic acids analysis suggested that increased cell lysis also contributed to SMP accumulation in the presence of Ce3+. The increase in SMP production in the presence of Ce3+ is possibly a consequence of the release of EPS and increased cell lysis due to cerium toxicity.

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