Treatment of petrochemical wastewater by microaerobic hydrolysis and anoxic/oxic processes and analysis of bacterial diversity

Yang, Qi; Xiong, Ping; Ding, Pengyuan; Chu, Libing; Wang, Jianlong

doi:10.1016/j.biortech.2015.07.087

Cited by 166 publications

(30 citation statements)

References 34 publications

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“…As for eubacteria, sample AS-A exhibited the highest ACE estimator and Chao 1 estimator, suggesting that AS-A has the greatest richness than AS-B and AS-C, whereas sample AS-C displayed the highest richness in archaea among all samples (Table 1). Microbial diversity was evaluated by Shannon index, and the higher the Shannon index, the richer the diversity [27]. In comparison, higher values of the Shannon index were achieved in samples AS-A (6.05) and AS-C (3.09) for the eubacteria and archaeal community, respectively.…”

Section: Overall Analysis Of Illumina Miseq Sequencingmentioning

confidence: 99%

Microbial Community of Tannery Wastewater Involved in Nitrification Revealed by Illumina MiSeq Sequencing

Ma¹,

Wu²,

Huang³

et al. 2018

Journal of Microbiology and Biotechnology

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The aim of this study was to investigate the microbial community of three tannery wastewater treatment plants (WWTPs) involved in nitrification by Illumina MiSeq sequencing. The results showed that highly diverse communities were present in tannery wastewater. A total of six phyla, including Proteobacteria (37-41%), Bacteroidetes (6.04-16.80), Planctomycetes (3.65-16.55), Chloroflexi (2.51-11.48), Actinobacteria (1.91-9.21), and Acidobacteria (3.04-6.20), were identified as the main phyla, and Proteobacteria dominated in all the samples. Within Proteobacteria, Beta-proteobacteria was the most abundant class, with the sequence percentages ranging from 9.66% to 17.44%. Analysis of the community at the genus level suggested that Thauera, Gp4, Ignavibacterium, Phycisphaera, and Arenimonas were the core genera shared by at least two tannery WWTPs. A detailed analysis of the abundance of ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) indicated that Nitrosospira, Nitrosomonas, and Nitrospira were the main AOB and NOB in tannery wastewater, respectively, which exhibited relatively high abundance in all samples. In addition, real-time quantitative PCR was conducted to validate the results by quantifying the abundance of the AOB and total bacteria, and similar results were obtained. Overall, the results presented in this study may provide new insights into our understanding of key microorganisms and the entire community of tannery wastewater and contribute to improving the nitrogen removal efficiency. S 1170 Ma et al. J. Microbiol. Biotechnol.

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Section: Overall Analysis Of Illumina Miseq Sequencingmentioning

confidence: 99%

Microbial Community of Tannery Wastewater Involved in Nitrification Revealed by Illumina MiSeq Sequencing

Ma¹,

Wu²,

Huang³

et al. 2018

Journal of Microbiology and Biotechnology

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“…Slight DO improved the physiological and metabolic functions of facultative hydrolytic acidifying bacteria and increased the acid production rate and the stability of the entire system. 42 At 5 and 10 kPa, anaerobic biochemicals were controlled in the hydrolytic acidication phase to convert macromolecular organic matter into small molecules, improving their biodegradability. At 15 kPa, anaerobes and facultative anaerobes were inhibited by excessive DO and the organic matter was mostly removed by aerobic bacteria.…”

Section: Operation Parameter Analysismentioning

confidence: 99%

Advanced treatment of coal chemical reverse osmosis concentrate with three-stage MABR

Liu

et al. 2020

RSC Adv.

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“…41,42 It includes a broad variety of aerobic, anaerobic and facultative bacteria that can degrade a wide spectrum of organic pollutants, as well as remove nitrogen and phosphorus during wastewater treatment. 43 The filamentous phylum Chloroflexi is ubiquitous among microbial populations in petroleum refinery and coking wastewater treatment plants, 37,44 where it plays a critical role in the degradation of soluble microbial products, including organic carbohydrates and other cellular components. 45 Members of the phylum Acidobacteria are dominant and metabolically active in soil samples.…”

Section: Analysis Of the Bacterial Communitymentioning

confidence: 99%

A bioaugmentation agent allowing the advanced treatment of refractory refinery wastewater in a biological aerated filter and analysis of its microbial community

Feng

Wen

2020

J of Chemical Tech & Biotech

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BACKGROUND The performance of a biological aerated filter (BAF) with activated sludge and nut shell activated carbon was evaluated for the advanced treatment of intractable refinery wastewater. Bioaugmenting the BAF with Pseudomonas sp. FS‐01 and Bacillus sp. FS‐02 and the microbial community structure between the upgrade system and the original system were also studied. RESULTS During the steady state of the BAF, the influent chemical oxygen demand (COD) was in the range 80–128 mg L−1, and ammonia nitrogen (NH4+‐N) was in the range 15–20 mg L−1. The BAF with activated carbon from nut shells as a supporting material can remove over 32% of influent COD and 95% of NH4+‐N. On bioaugmentation, the average effluent COD and NH4+‐N concentrations were 31.8 and 0.4 mg L−1, respectively. The predominant genera in BAF1 were Nitrospira, an unranked member of the Anaerolineaceae and an unclassified member of the Rhizobiales, while the dominant genera in BAF2 were Pseudomonas, Bacillus and an unranked member of the Anaerolineaceae. CONCLUSIONS The coconut shell activated carbon has outstanding properties for removing COD and NH4+‐N, along with high shock loading resistance. Bioaugmentation can improve the COD remove efficiency by 35% in relation to only adding sludge. Microbial diversity analysis indicated that bioaugmentation accelerated the transformation of the bacterial community structure, quickly becoming dominant strains. This bioaugmented process may be a promising alternative technology for the treatment of refractory wastewater. © 2019 Society of Chemical Industry

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Treatment of petrochemical wastewater by microaerobic hydrolysis and anoxic/oxic processes and analysis of bacterial diversity

Cited by 166 publications

References 34 publications

Microbial Community of Tannery Wastewater Involved in Nitrification Revealed by Illumina MiSeq Sequencing

Microbial Community of Tannery Wastewater Involved in Nitrification Revealed by Illumina MiSeq Sequencing

Advanced treatment of coal chemical reverse osmosis concentrate with three-stage MABR

A bioaugmentation agent allowing the advanced treatment of refractory refinery wastewater in a biological aerated filter and analysis of its microbial community

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