Efficient removal of organic compounds from shale gas wastewater by coupled ozonation and moving-bed-biofilm submerged membrane bioreactor

Liu, Xinyu; Tang, Peng; Liu, Yuanhui; Xie, Wancen; Chen, Chen; Li, Tong; He, Qiang; Bao, Jin; Tiraferri, Alberto; Liu, Baicang

doi:10.1016/j.biortech.2021.126191

Cited by 32 publications

(7 citation statements)

References 49 publications

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“…MBR-14 has slightly different pH, salinity, and temperature growth curves and carbon substrate utilization pattern compared to MBR-22 and MBR-55, possibly due to a number of singleton genes in MBR-14. Another key reactor parameter that is often reported to promote growth of Iodidimonas is aeration (21, 29, 32). The influence of aeration could be two-fold, by a) enhancing aerobic metabolism (oxidative phosphorylation machinery) thus eliminating anaerobes present in feed, and b) killing of iodine-sensitive, competing bacteria through secretion of iodide oxidizing enzyme, which in turn oxidizes iodide only in the presence of oxygen.…”

Section: Discussionmentioning

confidence: 99%

“…Time-series monitoring of this reactor through 16S rRNA gene amplicon sequencing revealed that Iodidimonas was not only a dominant and persistent genus throughout the study duration but was also the first genus to colonize the reactor along with Roseovarius (20). A recent study of two membrane bioreactors treating shale gas wastewater in China also reported Iodidimonas as one of the dominant groups in the reactor (21).…”

Section: Introductionmentioning

confidence: 99%

“…Members of this genus have been isolated from or detected mostly in subsurface-associated environments; many of these environments are reported to have high iodide concentrations and are also hydrocarbon-associated (natural gas brines/O&G PW) (20)(21)(22)(23)(24)(25). While their ability to oxidize iodide to iodine has been investigated before, the mechanisms of survival in hydrocarbon associated environments have not been explored.…”

Section: Introductionmentioning

confidence: 99%

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Iodidimonas, a bacterium unable to degrade hydrocarbons, thrives in a bioreactor treating oil and gas produced water

Acharya

Enalls

Walian³

et al. 2023

Preprint

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Iodidimonasis a genus recently described in bioreactors treating oil and gas produced water and in iodide rich brines. Besides the ability to oxidize iodine, little is known about the metabolic capabilities that enableIodidimonassp. to occupy this unique ecological niche. We isolated, characterized, and sequenced three strains belonging to theIodidimonasgenus from the sludge of a membrane bioreactor treating produced water. We describe the genomic features of these isolates and compare them with the only other four isolate genomes reported from this genus, as well as a metagenome-assembled genome from the source bioreactor. To survive in the produced water,Iodidimonasisolates had several genes associated with mitigating salinity, heavy metal and organic compound stress. While the isolates could utilize a wide variety of carbon substrates, they failed to degrade aliphatic or aromatic hydrocarbons, consistent with the lack of genes associated with common hydrocarbon degradation pathways in their genomes. We hypothesize these microbes may lead a scavenging lifestyle in the bioreactor and similar iodide-rich brines.ImportanceOccupying a niche habitat and having few representative isolates, genusIodidimonasis a relatively understudied Alphaproteobacterial group. This genus has garnered attention due to its ability to corrode pipes in iodine production facilities and generate iodinated organic compounds during treatment of oil and gas produced water. The iodinated organic compounds are likely to be carcinogenic and may pose issues with recycling the treated water. Hence, detailed characterization of the metabolic potential of these isolates is not only of economic importance, but also sheds light on adaptation of this microbe to its environmental niche.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Iodidimonas, a bacterium unable to degrade hydrocarbons, thrives in a bioreactor treating oil and gas produced water

Acharya

Enalls

Walian³

et al. 2023

Preprint

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“…Although there is limited literature on integrated systems involving MBRs, the organic removal and total membrane resistance of an SMBR and an integrated system consisting of ozonation and a moving bed biofilm SMBR has recently been compared. Lui et al [ 124 ] reported that the total membrane resistance was 40.1% lesser in the integrated system with removal rates of DOC and total nitrogen reported as 3.9% and 18.4% higher, respectively [ 124 ].…”

Section: Membrane Bioreactors (Mbrs)mentioning

confidence: 99%

Membrane Bioreactors for Produced Water Treatment: A Mini-Review

et al. 2022

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Environmentalists are prioritizing reuse, recycling, and recovery systems to meet rising water demand. Diving into produced water treatment to enable compliance by the petroleum industry to meet discharge limits has increased research into advanced treatment technologies. The integration of biological degradation of pollutants and membrane separation has been recognized as a versatile technology in dealing with produced water with strength of salts, minerals, and oils being produced during crude refining operation. This review article presents highlights on produced water, fundamental principles of membrane bioreactors (MBRs), advantages of MBRs over conventional technologies, and research progress in the application of MBRs in treating produced water. Having limited literature that specifically addresses MBRs for PW treatment, this review also attempts to elucidate the treatment efficiency of MBRs PW treatment, integrated MBR systems, general fouling, and fouling mitigation strategies.

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“…At the same time, caused water supply system failures, including drinking water pollution and delivery system disruptions, and people are faced with very urgent drinking water safety issues. , Compared to disruptions in the water supply system, the most important need to secure the safety of urban water supply is the prompt treatment of contaminated water. Water treatment technologies such as coagulation, chemical oxidation, adsorption, and membrane separation have been applied to drinking water pollution caused by water disasters. − Membrane separation technology is used generally for rapid water purification (wastewater treatment, drinking water purification, and seawater desalination) due to its advantages of high flux, low cost, high efficiency separation, small footprint, and easy integration for mobile facility. − In addition, this technology relies on the physical retention of pollutants by membrane pores to achieve clear water during emergency water supply contamination treatment, and the process is different from chemical methods and does not produce other new substances. Ultrafiltration (UF) membranes have low operating pressure, can remove colloids and viruses, reduce turbidity, and reduce the occurrence of diarrhea, so they are often used in disaster relief. − …”

Section: Introductionmentioning

confidence: 99%

Preparation of High Flux Chlorinated Polyvinyl Chloride Composite Ultrafiltration Membranes with Ternary Amphiphilic Copolymers as Anchor Pore-Forming Agents and Enhanced Anti-Fouling Behavior

Chen

Xie

Chen

et al. 2023

Ind. Eng. Chem. Res.

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N-Phenylmaleimide-styrene-maleic anhydride (NSM) copolymer, an inexpensive and commercial heat-resistant agent, was used as an additive in this work to tune the properties of chlorinated polyvinyl chloride (CPVC) composite ultrafiltration membranes. The NSM chains did not agglomerate in the casting solution, but increased the thermal instability, leading to faster phase separation and changing the cracked pores to rounded pores on the membrane surface. Moreover, the cross-section appeared with sub-layered finger-like macropores and micropores, which facilitated the rapid passage of water through the membrane. Notably, NSM copolymers were anchored to the membrane surface and the cyclic groups (maleic anhydride and maleamide) were not hydrolyzed during the phase separation as demonstrated by ATR-FTIR and XPS analysis. This may affect the membrane separation behavior. The results indicated that the pure water permeability of NSM-tuned membranes increasing by 350% that of pristine membrane. The rejection of all NSM-tuned membranes was higher than 90% for humic acid (HA) and 85% for sodium alginate (SA), which still outperformed the pristine membrane. With a NSM content of 5 or 10 wt % for two foulants (20 mg/L SA and 100 mg/L HA), the FRR of the NSM-tuned membrane exceeded 90.0% and the reversible flux decline ratio reached 50%, exhibiting better anti-fouling performance. Extended Derjaguin−Landau−Verwey−Overbeek theoretical model was utilized to evaluate and analyze the fouling mechanisms of the NSM-tuned membrane. Therefore, NSM can not only play a role of poreforming but also significantly enhance the separation behavior of the CPVC membrane, providing a reference for future environmentally friendly membrane manufacturing processes.

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Efficient removal of organic compounds from shale gas wastewater by coupled ozonation and moving-bed-biofilm submerged membrane bioreactor

Cited by 32 publications

References 49 publications

Iodidimonas, a bacterium unable to degrade hydrocarbons, thrives in a bioreactor treating oil and gas produced water

Iodidimonas, a bacterium unable to degrade hydrocarbons, thrives in a bioreactor treating oil and gas produced water

Membrane Bioreactors for Produced Water Treatment: A Mini-Review

Preparation of High Flux Chlorinated Polyvinyl Chloride Composite Ultrafiltration Membranes with Ternary Amphiphilic Copolymers as Anchor Pore-Forming Agents and Enhanced Anti-Fouling Behavior

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