The effects of divalent copper on performance, extracellular polymeric substances and microbial community of an anoxic–aerobic sequencing batch reactor

RSC Advances ◽  
2015 ◽  
Vol 5 (39) ◽  
pp. 30737-30747 ◽  
Author(s):  
Sen Wang ◽  
Mengchun Gao ◽  
Zhichao Wang ◽  
Zonglian She ◽  
Chunji Jin ◽  
...  
Keyword(s):  
Microbial Community ◽  
Activated Sludge ◽  
Extracellular Polymeric Substances ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Divalent Copper

The effects of divalent copper (Cu(ii)) on the performance, extracellular polymeric substances (EPS) and microbial community of activated sludge were investigated in an anoxic–aerobic sequencing batch reactor (SBR).

scholarly journals Effect of temperatures and alternating anoxic/oxic sequencing batch reactor (SBR) operating modes on extracellular polymeric substances in activated sludge

2020 ◽  
Author(s):  
Hongwei Sun ◽  
Chenjian Cai ◽  
Jixue Chen ◽  
Chunyu Liu ◽  
Guangjie Wang ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Extracellular Polymeric Substances ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Operating Modes ◽  
Nitrification Process ◽  
Main Component ◽  
Denitrification Process

Abstract In order to investigate the effect of temperatures and operating modes on extracellular polymeric substances (EPS) contents, three sequencing batch reactors (SBRs) were operated at temperatures of 15, 25, and 35 °C (R15 °C, R25 °C, and R35 °C, respectively), with two SBRs operated under alternating anoxic/oxic conditions (RA/O and RO/A, respectively). Results showed that higher contents of tightly bound EPS (TB-EPS) and total EPS appeared in R15 °C, while loosely bound EPS (LB-EPS) dominated in R35 °C. In all three kinds of EPS (LB-EPS, TB-EPS and total EPS) assessed, protein was the main component in R15 °C and R25 °C, while polysaccharides dominated in R35 °C. Moreover, compared with RO/A, RA/O was favorable for the production of the three kinds of EPS. Furthermore, three kinds of EPS and their components were augmented during the nitrification process, while they declined during the denitrification process under all conditions except for R35 °C.

Effect of oxytetracycline on performance and microbial community of an anoxic–aerobic sequencing batch reactor treating mariculture wastewater

RSC Advances ◽  
2015 ◽  
Vol 5 (66) ◽  
pp. 53893-53904 ◽  
Author(s):  
Sen Wang ◽  
Mengchun Gao ◽  
Zhe Wang ◽  
Zonglian She ◽  
Chunji Jin ◽  
...  
Keyword(s):  
Microbial Community ◽  
Activated Sludge ◽  
Microbial Communities ◽  
Sequencing Batch Reactor ◽  
Batch Reactor ◽  
Dgge Profile

The DGGE profile illustrates that the microbial communities of activated sludge exhibit obvious variations under OTC stress.

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