Bioremediation of oily sludge by solid complex bacterial agent with a combined two-step process

Ke, Cong‐Yu; Fang-ling, Qin; Yang, Zhiyong; Sha, Jun; Sun, Wu‐Juan; Hui, Junfeng; Zhang, Qun-Zheng; Zhang, Xun‐Li

doi:10.1016/j.ecoenv.2020.111673

Cited by 36 publications

(26 citation statements)

References 53 publications

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“…Batch biodegradation process offers an efficient approach at shorter hydraulic retention time (HRT) for the treatment of oily wastewater (Agamuthu 1995;Nzila et al 2017 Bioaugmentation with a consortium of microorganisms is an effective approach for the removal of pollutants present in oily wastewater (Corti-Monzόn et al 2020;Ke et al 2021). Shokrollahzadeh et al (2008) treated oily wastewater in an activated sludge inoculated with a consortium of microorganisms consisting of 67 bacterial strains from Acinetobacter, Pseudomonas, Comamonas, Flavobacterium, Cytophaga, Sphingomonas, Acidovorax, and Bacillus genera and one mold species, Trichoderma sp.…”

Section: Batch Biodegradation Of Oily Wastewater Using Single or Consortium Of Microorganismsmentioning

confidence: 99%

Treatment of industrial oily wastewater by advanced technologies: a review

2021

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Oily wastewater consists of fats, oils and greases together with a broad spectrum of dissolved organic and/or inorganic substances in suspension. It is regarded as one of the most hazardous wastewaters, causing serious environmental and health threats to the ecosystems, flora and fauna. The global increase in the discharge of oily wastewater coupled with stringent regulations for effluent discharge and incessant drive for re-use of treated wastewater necessitate the need for treatment of the wastewater. Conventional approaches employed in the past are inept for oily wastewater treatment due to low treatment efficiency and high operational costs, among others, hence the need for adoption of advanced technologies as promising alternatives to existing treatment systems for oily wastewater. Furthermore, the use of combined treatment processes is effective for the removal of hazardous pollutants present in high-strength oily wastewater. This review provides insights into advanced and emerging state-of-the-art technologies for safe and efficient treatment of industrial oily wastewater.

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Section: Batch Biodegradation Of Oily Wastewater Using Single or Consortium Of Microorganismsmentioning

confidence: 99%

Treatment of industrial oily wastewater by advanced technologies: a review

2021

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“…Oily sludge is an inevitable byproduct of the petrochemical industry during the production, collection, and transportation of petrochemicals. In China, more than one million tons of oily sludge are produced every year 14 . Currently, the main disposal methods for oily sludge include stacking, landfilling, and incineration 15 .…”

Section: Introductionmentioning

confidence: 99%

Removal of Cr(VI) by biochar derived via co-pyrolysis of oily sludge and corn stalks

Han

Zhang

et al. 2022

Sci Rep

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The co-pyrolysis of oily sludge with biomass to prepare carbon materials is not only an effective way to mitigate oily sludge pollution, but it is also a method of obtaining carbon materials. In this study, a carbon material (OS-CS AC) was obtained by the direct co-pyrolysis of oily sludge (OS) and corn stalks (CS) and then applied to Cr(VI) removal. According to the hydroxy and carboxy masking experiments and the characterization of OS-CS AC by FT-IR, SEM, XPS, XRD, and N2 physical adsorption–desorption, Cr(VI) can be adsorbed efficiently through pore filling, the surface oxygen-containing functional groups can promote the reduction of Cr(VI) to Cr(III) through electron donors, and the greater the electrostatic attraction between the electron-donating functional groups of OS-CS AC and the Cr(VI) is, the stronger the ability to remove Cr(VI). In addition, the removal process was discussed, and the results indicated that the McKay kinetic model, Langmuir isotherm model and Van't Hoff thermodynamic model were the most suitable models for removal. The main factors affecting the removal of Cr(VI) were discussed, and the removal of Cr(VI) reached 99.14%, which gives a comprehensive utilization way of oily sludge and corn stalks.

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“…In comparison to phytoremediation, microbial bioremediation is slightly faster, but can still take months to years for signi cant impact [11,12]. While bioremediation using native microbiota has been shown to be effective [13,14], neither conventional nor alternative remediation techniques are currently optimized to assess, monitor, and restore affected soil microbial communities to their uncontaminated states [15]. Thus, assessment of the native soil microbial community throughout the remediation processes is essential for mitigating negative ecological impacts [16].…”

Section: Introductionmentioning

confidence: 99%

Soil microbial community composition and tolerance to contaminants in an urban brownfield site

Mejia

Rojas

Curd

et al. 2022

Preprint

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Brownfields are unused sites that likely contain hazardous substances due to previous commercial or industrial use. These sites are a priority for remediation and redevelopment because of the risk to humans, flora, and fauna. Bioremediation of brownfield sites can be facilitated by in situ microbial communities, but little research exists that characterizes microbial communities at these sites or understands which microbial taxa may play a role in successful bioremediation at Brownfields. We sequence three gene markers (16S ribosomal RNA, 18S ribosomal RNA and Fungal Internal Transcribed Spacer) in 36 soil samples collected at five depths from a defunct urban rail yard in Los Angeles to: (1) profile the composition of the soil microbiome across depths; (2) determine the extent to which hazardous chemicals predict microbiome variation; and (3) identify microbial taxonomic groups that may metabolize these contaminants. Detected contaminants in the samples include heavy metals, petroleum hydrocarbons, and polycyclic aromatic hydrocarbons. Bacterial, eukaryotic, and fungal communities all varied with depth and with concentrations of arsenic, chromium, cobalt, and lead. 18S rRNA microbiome richness was positively correlated with cobalt and lead concentrations. Furthermore, bacterial Paenibacillus and Iamia, eukaryotic Actinochloris, and fungal Alternaria were enriched in contaminated soils compared to uncontaminated soils and were identified as taxa of interest for future bioremediation trials. Based on our results, we recommend the use of test plots that combine in situ native microorganisms and plant-associated mycorrhizae to determine bioremediation potential. We also recommend incorporating DNA-based microbial community profiling in brownfield site assessment and cleanup monitoring.

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Bioremediation of oily sludge by solid complex bacterial agent with a combined two-step process

Cited by 36 publications

References 53 publications

Treatment of industrial oily wastewater by advanced technologies: a review

Treatment of industrial oily wastewater by advanced technologies: a review

Removal of Cr(VI) by biochar derived via co-pyrolysis of oily sludge and corn stalks

Soil microbial community composition and tolerance to contaminants in an urban brownfield site

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