Single and simultaneous effects of naphthalene and salinity on anaerobic digestion: Response surface methodology, microbial community analysis and potential functions prediction

Shi, Yongsen; Fang, Hongli; Li, Yu You; Wu, Hanyang; Liu, Rutao; Niu, Qigui

doi:10.1016/j.envpol.2021.118188

Cited by 21 publications

(3 citation statements)

References 51 publications

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“…Some researchers showed that Methylobacterium could utilize PAHs as the carbon substrate and had the ability to degrade PAHs (Ge et al, 2021; Li, Yin, et al, 2021). The Clostridium ( Firmicutes phylum) was capable of degrading different organic compounds including PAHs (Shi et al, 2021). Cao et al (2020) reported that the Exiguobacterium sp.…”

Section: Resultsmentioning

confidence: 99%

Toxicity determination, pollution source delineation, and microbial diversity evaluation of PAHs‐contaminated sediments for an urban river

Yao

Lin

et al. 2022

Water Environment Research

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The Feng‐Sang River is a metropolitan river in Kaohsiung City, Taiwan. In this study, Feng‐Sang River sediments were analyzed to investigate the distributions and sources of polycyclic aromatic hydrocarbons (PAHs). The Sediment Quality Guidelines (SQGs), potentially carcinogenic PAHs (TEQcarc), and toxic equivalence quotient (TEQ) were applied to evaluate influences of PAHs on ecosystems and microbial diversities. Results indicate that PAHs concentrations varied between seasons and locations. The concentrations of ∑16PAHs ranged from 73.6 to 603.8 ng/kg in dry seasons and from 2.3 to 199.3 ng/kg in wet seasons. This could be because of the flushing effect during wet seasons, which caused the movement and dilution of the PAH‐contaminated sediments. Diagnostic ratio analysis infers that high PAHs levels were generated by combustion processes and vehicle traffic, and results from multivariate descriptive statistical analysis also demonstrate that the vehicular traffic pollution could be the major emission source of PAHs contamination. Comparisons of PAHs with SQGs indicate that PAHs concentrations in sediment were below the effects range low (ERL) values, and thus, the immediate threat to organisms might not be significant. The diagnostic ratio analyses are effective methods for PAH source appointment. The metagenomic assay results imply that sediments contained essential microbial species with eminent diversity. The detected PAH‐degrading bacteria (Desulfatiglans, Dechloromonas, Sphingomonas, Methylobacterium, Rhodobacter, Clostridium, and Exiguobacterium) played a key role in PAHs biotransformation, and Dechloromonas and Rhodobacter had a higher relative abundance. Results of microbial diversity analyses indicate that the contaminated environment induced the changes of governing microbial groups in sediments. Practitioner Points Diagnostic ratio analyses are effective methods for PAHs source appointment. Microbial composition in sediments are highly affected by anthropogenic pollution. Combustion and vehicle traffic contribute to urban river sediments pollution by PAHs. Dechloromonas and Rhodobacter are dominant PAHs‐degrading bacteria in sediments.

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Section: Resultsmentioning

confidence: 99%

Toxicity determination, pollution source delineation, and microbial diversity evaluation of PAHs‐contaminated sediments for an urban river

Yao

Lin

et al. 2022

Water Environment Research

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“…Methanobacterium was a hydrogenotrophic methanogen that could interact with other methanogens and fermenters to promote the conversion of organic matter [58]. Methanofollis was a hydrogenotrophic methanogen with an optimum growth temperature of 37 • C [25]. Methanosarcina was an acetic acid-nutrient methanogen that typically grew at mesophilic temperatures [57].…”

Section: Archaea Communitymentioning

confidence: 99%

“…After a one-step temperature increase, there was a rapid proliferation of Methanosarcina, Methanothermobacter, and Methanoculleus within 11 days. However, the sludge was rich in microorganisms with low concentrations of ammonia, which is beneficial for the normal metabolism of methanogens [25]. During the thermophilic anaerobic digestion of garbage slurry inoculated with mesophilic-wasteactivated sludge, thermophilic methanogens could be enriched [26].…”

Section: Introductionmentioning

confidence: 99%

Effects of One-Step Abrupt Temperature Change on Anaerobic Co-Digestion of Kitchen Waste with Dewatered Sludge

Hu,

Zhou,

Zhu

et al. 2023

Fermentation

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The operating temperature of anaerobic digesters should be adjusted to adapt to seasonal variations in environmental temperature and the composition of organic solid waste. This study investigated the effects of one-step abrupt temperature changes (from mesophilic to thermophilic temperature, M–T, and from thermophilic to mesophilic temperature, T–M) and the inoculation ratio on methane yield and microbial diversity during the anaerobic co-digestion of kitchen waste with dewatered sludge. The results showed that the cumulative methane yield (CMY) level resulting from thermophilic control and the M–T digesters was greater than that resulting from mesophilic control and the T–M digesters. The CMF of M–T digesters increased, whereas the CMY of T–M digesters gradually decreased with an increase in the inoculation ratio. The maximal CMY was 385.1 mL/g-VSSadded, which corresponded to an M–T digester with a 5% inoculation ratio. In the later stage of anaerobic digestion, the bacterial community of T–M was more diverse than that of M–T, but the archaeal community of M–T was more diverse than that of T–M. The one-step temperature change from thermophilic to mesophilic temperature was more stable than that from mesophilic to thermophilic temperature.

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Sustainable Management of Oily Petroleum Refinery Sludge Through Anaerobic Digestion with Bioenergy Production

Sahu,

Sethi,

Bharshankh

et al. 2024

Recent Trends in Management and Utilization of Industrial Sludge

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Single and simultaneous effects of naphthalene and salinity on anaerobic digestion: Response surface methodology, microbial community analysis and potential functions prediction

Cited by 21 publications

References 51 publications

Toxicity determination, pollution source delineation, and microbial diversity evaluation of PAHs‐contaminated sediments for an urban river

Toxicity determination, pollution source delineation, and microbial diversity evaluation of PAHs‐contaminated sediments for an urban river

Effects of One-Step Abrupt Temperature Change on Anaerobic Co-Digestion of Kitchen Waste with Dewatered Sludge

Sustainable Management of Oily Petroleum Refinery Sludge Through Anaerobic Digestion with Bioenergy Production

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