Pilot-scale microaerobic hydrolysis-acidification and anoxic-oxic processes for the treatment of petrochemical wastewater

Chu, Libing; Ding, Pengyuan; Ding, Mingcong

doi:10.1007/s11356-021-14810-9

Cited by 5 publications

(3 citation statements)

References 43 publications

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“…Typical bacteria responsible for hydrolysis, acidification, and methane production, such as Anaerovorax species [ 30 ] and Methanosaeta [ 25 ], were detected as the dominant anaerobic bacteria in SWW. Paenibacillus became the most dominant species in SWW 180 , likely because it can survive for long periods under stress conditions and has a strong capacity for degrading different pollutants in wastewater systems [ 16 ].…”

Section: Resultsmentioning

confidence: 99%

Anaerobic Storage Completely Removes Suspected Fungal Pathogens but Increases Antibiotic Resistance Gene Levels in Swine Wastewater High in Sulfonamides

Zhao

Zhang

Sun

et al. 2023

IJERPH

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Wastewater storage before reuse is regulated in some countries. Investigations of pathogens and antibiotic resistance genes (ARGs) during wastewater storage are necessary for lowering the risks for wastewater reuse but are still mostly lacking. This study aimed to investigate pathogens, including harmful plant pathogens, and ARGs during 180 d of swine wastewater (SWW) storage in an anaerobic storage experiment. The contents of total organic carbon and total nitrogen in SWW were found to consistently decrease with the extension of storage time. Bacterial abundance and fungal abundance significantly decreased with storage time, which may be mainly attributed to nutrient loss during storage and the long period of exposure to a high level (4653.2 μg/L) of sulfonamides in the SWW, which have an inhibitory effect. It was found that suspected bacterial pathogens (e.g., Escherichia–Shigella spp., Vibrio spp., Arcobacter spp., Clostridium_sensu_stricto_1 spp., and Pseudomonas spp.) and sulfonamide-resistant genes Sul1, Sul2, Sul3, and SulA tended to persist and even become enriched during SWW storage. Interestingly, some suspected plant fungal species (e.g., Fusarium spp., Ustilago spp. and Blumeria spp.) were detected in SWW. Fungi in the SWW, including threatening fungal pathogens, were completely removed after 60 d of anaerobic storage, indicating that storage could lower the risk of using SWW in crop production. The results clearly indicate that storage time is crucial for SWW properties, and long periods of anaerobic storage could lead to substantial nutrient loss and enrichment of bacterial pathogens and ARGs in SWW.

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Section: Resultsmentioning

confidence: 99%

Anaerobic Storage Completely Removes Suspected Fungal Pathogens but Increases Antibiotic Resistance Gene Levels in Swine Wastewater High in Sulfonamides

Zhao

Zhang

Sun

et al. 2023

IJERPH

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Section: Introductionmentioning

confidence: 99%

“…The organic fraction of MSW is degraded into CO 2 , CH 4 and some low molecular weight compounds through a series of aerobic and anaerobic processes. The microbial communities which play a signi cant role in this degradation process include ammonia oxidizing bacteria, nitrite oxidizing bacteria, denitrifying bacteria, acidogens, and methanogens [4]. Due to the abundance of organic matter and substrate complexity in these sites, land lls are considered "microbial pools" [5], which are responsible for degrading the raw leachate and conversion of organic matter into less complex and less toxic compounds.…”

Section: Introductionmentioning

confidence: 99%

Microbiome analysis of landfill leachate samples sourced from Powerstown landfill Co. Carlow

Garcia-Cabellos²,

Enright³

2022

Preprint

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Little is known about the microbial ecology of closed landfill, or how the diversity of these communities changes over time. This study focuses on the bacterial community diversity analysis of landfill leachate (LFL) sourced from Powerstown landfill Co. Carlow, Ireland. The LFL samples used in this study came from both closed and active landfill, and represent different phases of the landfill. HiSeq sequencing systems based 16S rRNA gene sequence analysis was used to investigate the bacterial communities of a total of six LFL samples; four samples from landfill cells (two from closed landfill cells and two from active landfill cells), and two samples sourced from a leachate tank (LT) collected over an interval of 2.5 years. Members of the phylum Proteobacteria (Pseudomonadota) were dominant in all landfill samples investigated (56 to 71%), followed by Bacteroidetes (Bacteroidota) (7 to 21%). The operating status of landfills (i.e. active / closed) and the age of landfill were found to affect the bacterial composition of LFL. Members of the class Epsilonproteobacteria and genus Sulfurimonas were dominant in LFL from active landfill, while the class Betaproteobacteria and genus Pusillimonas were dominant in closed landfill. Furthermore, it was observed that the composition of the microbial community in active landfill showed fluctuation by the progressing landfill age, while the bacterial composition of closed landfill tends to be stable as the year the landfill is closed.

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A novel simultaneous short-course nitrification, denitrification and fermentation process: bio-enhanced phenol degradation and denitrification in a single reactor

Zhu,

Li,

Ren

et al. 2024

Environ Monit Assess

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Pilot-scale microaerobic hydrolysis-acidification and anoxic-oxic processes for the treatment of petrochemical wastewater

Cited by 5 publications

References 43 publications

Anaerobic Storage Completely Removes Suspected Fungal Pathogens but Increases Antibiotic Resistance Gene Levels in Swine Wastewater High in Sulfonamides

Anaerobic Storage Completely Removes Suspected Fungal Pathogens but Increases Antibiotic Resistance Gene Levels in Swine Wastewater High in Sulfonamides

Microbiome analysis of landfill leachate samples sourced from Powerstown landfill Co. Carlow

A novel simultaneous short-course nitrification, denitrification and fermentation process: bio-enhanced phenol degradation and denitrification in a single reactor

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