Long-term effects of mineral precipitation on process performance, granules' morphology and microbial community in anammox granular sludge

2021 ◽  
pp. 107002
Author(s):  
C. Polizzi ◽  
T. Lotti ◽  
A. Ricoveri ◽  
R. Campo ◽  
C. Vannini ◽  
...  
Keyword(s):  
Microbial Community ◽  
Granular Sludge ◽  
Process Performance ◽  
Long Term Effects ◽  
Mineral Precipitation ◽  
Anammox Granular Sludge

scholarly journals Stress-Responses of Performance and Microbial Community in Anaerobic Digestion System Under Long-Term Enrichment of Phenanthrene

2021 ◽  
Author(s):  
Yongsen Shi ◽  
Chunli Xu ◽  
Jingyi Li ◽  
Yilin Yao ◽  
Qigui Niu
Keyword(s):  
Microbial Community ◽  
Stress Responses ◽  
System Performance ◽  
Oxygen Demand ◽  
Granular Sludge ◽  
Long Term Effects ◽  
Term Enrichment ◽  
Fermentative Bacteria ◽  
Soluble Chemical Oxygen Demand

The expanded granular sludge blanket reactor (EGSB) was operated for 198 days to study the long-term effects of phenanthrene (PHE) enrichment on system performance and microbial community. The results showed that the PHE was significantly enriched in the reactor. The final PHE concentration in effluent and sludge reached to 1.764±0.05 mg/L and 12.52±0.42 mg/gTS, respectively. While the average daily methane production was decreased by 5.0%-9.8% under long-term PHE exposure. The 3D-EEM of effluent indicated that PHE stimulated the microbial metabolism with the higher intensity of soluble microbial byproduct-like materials (SMP) and proteins. Moreover, the removal efficiency of soluble chemical oxygen demand (SCOD) and NH4+-N gradually diminished with the enrichment of PHE. PHE shaped the microbial community, and the predominant fermentative bacteria (Mesotoga) was severely inhibited. Contrarily, the bacteria (Syntrophorhabdus, Acinetobacter, Desulfovibrio, Desulfomicrobium) involved in PHE-degradation was enriched at end of Phase V. In addition, the relative abundance (RA) of hydrotrophic methanogens (Methanofastidiosum, Methanolinea, Methanobacterium, Methanomassiliicoccus) increased by 0.96-fold with the long-term enrichment of PHE, while the RA of acetoclastic Methanosaeta obviously decreased.

The structure of anammox granular sludge under varying long-term organic matter stress: Performance, physiochemical and microbial community

2021 ◽  
Vol 323 ◽  
pp. 129117
Author(s):  
Chongjun Chen ◽  
Ying Jiang ◽  
Jingjing Liu ◽  
Mabruk Adams ◽  
Yaofeng Chang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Microbial Community ◽  
Granular Sludge ◽  
Anammox Granular Sludge

Long-term high-solids anaerobic digestion of food waste: Effects of ammonia on process performance and microbial community

2018 ◽  
Vol 262 ◽  
pp. 148-158 ◽  
Author(s):  
Xuya Peng ◽  
ShangYi Zhang ◽  
Lei Li ◽  
Xiaofei Zhao ◽  
Yao Ma ◽  
...  
Keyword(s):  
Microbial Community ◽  
Anaerobic Digestion ◽  
Food Waste ◽  
Process Performance ◽  
High Solids

The performance and microbial community in response to MnO2 nanoparticles in anammox granular sludge

Chemosphere ◽  
2019 ◽  
Vol 233 ◽  
pp. 625-632 ◽  
Author(s):  
Jia-Jia Xu ◽  
Ya-Fei Cheng ◽  
Lian-Zeng-Ji Xu ◽  
Xiao-Ling Zhu ◽  
Wei-Qin Zhu ◽  
...  
Keyword(s):  
Microbial Community ◽  
Granular Sludge ◽  
Mno2 Nanoparticles ◽  
Anammox Granular Sludge
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