Evaluation of the effects of adding activated carbon at different stages of composting on metal speciation and bacterial community evolution

2021 ◽  
pp. 151332
Author(s):  
Ying Zhang ◽  
Qinghong Sun ◽  
Zhao Jiang ◽  
Jianmin Wang ◽  
Bo Cao ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Bacterial Community ◽  
Metal Speciation ◽  
Community Evolution

The metolachlor degradation kinetics and bacterial community evolution in the soil bioelectrochemical remediation

Chemosphere ◽  
2020 ◽  
Vol 248 ◽  
pp. 125915 ◽  
Author(s):  
Xiaojing Li ◽  
Yue Li ◽  
Xiaolin Zhang ◽  
Xiaodong Zhao ◽  
Xiaodong Chen ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Degradation Kinetics ◽  
Community Evolution

scholarly journals Occurrence and Succession of Bacterial Community in O3/BAC Process of Drinking Water Treatment

2019 ◽  
Vol 16 (17) ◽  
pp. 3112 ◽  
Author(s):  
Sheng Dong ◽  
Lijun Liu ◽  
Yuxiu Zhang ◽  
Fajun Jiang
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Bacterial Community ◽  
Dissolved Oxygen ◽  
Chemical Oxygen Demand ◽  
Bacterial Communities ◽  
Oxygen Demand ◽  
Drinking Water Treatment ◽  
Turbidity Removal ◽  
N Removal

In the drinking water industry, a common advanced treatment process is comprised of treatment with ozone, followed by biological-activated carbon (O3/BAC). However, the bacterial community formation and succession procedures associated with activated carbon have rarely been reported. In this study, the dynamics of bacterial communities at three different depths were investigated using a pilot-scale O3/BAC filter. The average chemical oxygen demand (CODMn), turbidity removal and dissolved oxygen (DO) consumption rate of the filter were 26.43%, 16.57% and 16.4% during the operation period, respectively. Bacterial communities dominated by proteobacteria and Bacteroidetes attached on activated carbon were determined by polymerase chain reaction-density gradient gel electrophoresis (PCR-DGGE). Principal component analysis (PCA) revealed that the compositions and structures of bacterial communities in different layers clustered after fluctuation. A redundancy analysis (RDA) indicated that Ramlibacter henchirensis was positively correlated to chemical oxygen demand (CODMn) removal and nitrate-N removal, and Georgfuchsia toluolica also showed a positive correlation with CODMn removal. Aquabacterium parvum and Phaeobacterium nitratireducens were positively-correlated with turbidity removal. Pedobacter glucosidilyticus and Pseudomonas sp. were associated with high dissolved oxygen (DO) consumption. These results provide insight into the succession characteristics of the bacterial community of O3/BAC treatment and the interactions of the bacterial community with filter operation performance.

Bacterial community evolutions driven by organic matter and powder activated carbon in simultaneous anammox and denitrification (SAD) process

2018 ◽  
Vol 251 ◽  
pp. 13-21 ◽  
Author(s):  
Cheng-Hao Ge ◽  
Na Sun ◽  
Qi Kang ◽  
Long-Fei Ren ◽  
Hafiz Adeel Ahmad ◽  
...  
Keyword(s):  
Organic Matter ◽  
Activated Carbon ◽  
Bacterial Community ◽  
Powder Activated Carbon

scholarly journals Composition and stability of bacterial communities associated with granular activated carbon and anthracite filters in a pilot scale municipal drinking water treatment facility

2012 ◽  
Vol 10 (2) ◽  
pp. 244-255 ◽  
Author(s):  
T. B. Shirey ◽  
R. W. Thacker ◽  
J. B. Olson
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Community Structure ◽  
Water Treatment ◽  
Bacterial Community ◽  
16S Rrna ◽  
Community Composition ◽  
Bacterial Communities ◽  
Granular Activated Carbon ◽  
Rrna Genes

Granular activated carbon (GAC) is an alternative filter substrate for municipal water treatment as it provides a high surface area suitable for microbial colonization. The resulting microbial growth promotes biodegradation of organic materials and other contaminants from influent waters. Here, the community structure of the bacteria associated with three GAC and two anthracite filters was examined over 12 months to monitor changes in community composition. Nearly complete 16S rRNA genes were polymerase chain reaction amplified for terminal restriction fragment length polymorphism (T-RFLP) analyses. The identity of commonly occurring peaks was determined through the construction of five representative 16S rRNA clone libraries. Based on sequence analysis, the bacterial communities associated with both anthracite and GAC filters appear to be composed of environmentally derived bacteria, with no known human pathogens. Analysis of similarity tests revealed that significant differences in bacterial community structure occurred over time, with filter substrate playing an important role in determining community composition. GAC filters exhibited the greatest degree of bacterial community variability over the sampling period, while anthracite filters showed a lower degree of variability and less change in community composition. Thus, GAC may be a suitable biologically active filter substrate for the treatment of municipal drinking water.

Effects of GAC and UV/H2O2-GAC filtration on bacterial community and opportunistic pathogens in simulated drinking water systems

2021 ◽  
Author(s):  
Lixin Huo ◽  
Shehang Zhao ◽  
Baoyou Shi ◽  
Shouyang He ◽  
Haibo Wang
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Bacterial Community ◽  
Granular Activated Carbon ◽  
Water Systems ◽  
Opportunistic Pathogens ◽  
Drinking Water Systems

Effects of granular activated carbon (GAC) and UV/H2O2-GAC filtration on bacterial community and opportunistic pathogens (OPs) in simulated drinking water systems were investigated in this study. The results indicated that...

scholarly journals A Study of the Distribution of a Bacterial Community in Biological-Activated Carbon (BAC)

2012 ◽  
Vol 22 (9) ◽  
pp. 1237-1242
Author(s):  
Hong-Ki Park ◽  
Eun-Young Jung ◽  
Dong-Jin Cha ◽  
Jung-A Kim ◽  
Jae-Hoon Bean
Keyword(s):  
Activated Carbon ◽  
Bacterial Community ◽  
Biological Activated Carbon
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