Impact of different inoculum sources on the performance of membrane bioreactors for municipal wastewater treatment: Dynamic membrane versus ultrafiltration membrane

Isik, Onur; Cengiz, Ali Izzet; Abdelrahman, Amr Mustafa; Ozcelik, Kadir; Yüksekdağ, Ayşe; Koyuncu, İsmail; Erşahin, Mustafa Evren; Özgün, Hale; Demir, İbrahim

doi:10.1016/j.jwpe.2021.102549

Cited by 7 publications

(3 citation statements)

References 39 publications

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“…It was because SS addition to the FW reduced the fraction of small particles which are < 1 μm in the feedstock while the fraction of larger particles > 100 μm was increased. It is known that small particles can deposit on the membrane surface and block the membrane pores (Isik et al 2022). Therefore, besides the biological synergistic effect of codigestion, physical synergistic effects are visible that are especially important for the AnMBR systems.…”

Section: Sludge Streammentioning

confidence: 99%

“…Another application that might be a solution for the membrane fouling faced during co-digestion by AnMBRs is using DM in AnMBR. DM is a secondary filtration layer that forms a low-cost support material by the deposition of solid particles and microbial cells (Isik et al 2022). DM can be repeatedly formed on the lowcost support material and thus this can be a potential solution for the permeability loss that is observed in conventional membranes (Lee et al 2001).…”

Section: Sludge Streammentioning

confidence: 99%

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Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Cengiz,

Guven,

Ozgun

et al. 2024

Rev Environ Sci Biotechnol

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Today, the transition to renewable energy from conventional energy practices is more important than ever to establish energy security and mitigate climate change. The wastewater treatment plants (WWTP) consume a remarkable amount of energy and cause significant greenhouse gas emissions. The energy balance of WWTP can be improved by implementing energy-efficient applications such as anaerobic digestion. However, most of the existing WWTPs utilize only sewage sludge in conventional anaerobic digesters (CAD) which results in low biogas generation. Generally, co-digestion is indicated as an effective solution for the low biogas generation faced in mono-digestion. Moreover, recently, anaerobic membrane bioreactors (AnMBR) have been promoted as a prominent alternative to CADs. This paper overviews the current situation of co-digestion applications by AnMBRs for municipal WWTPs. Furthermore, the environmental and economic aspects of these applications were reviewed. Lastly, challenges and future perspectives related to the co-digestion applications by AnMBR were thoroughly discussed. Graphical Abstract

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Section: Sludge Streammentioning

confidence: 99%

Section: Sludge Streammentioning

confidence: 99%

Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Cengiz,

Guven,

Ozgun

et al. 2024

Rev Environ Sci Biotechnol

Self Cite

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show abstract

“…Membranes are commonly used in water treatment systems due to their small footprint, reasonable operating costs, high selective separation efficiency, and high quality of final permeate 1 – 3 . Membrane filtration is a versatile technology that can be coupled with other water separation systems, including micro- and ultra-filtration in bioreactors, where it represents an autonomous substitute for secondary clarifiers and nanofiltration in the treatment of drinking water 4 , 5 . An important obstacle impeding the development of membranes as the primary option in water treatment systems, however, is (bio)fouling 4 , 6 .…”

Section: Introductionmentioning

confidence: 99%

Advanced (bio)fouling resistant surface modification of PTFE hollow-fiber membranes for water treatment

Taghavian

Černík

Dvořák

2023

Sci Rep

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Membrane surface treatment to modify anti-(bio)fouling resistivity plays a key role in membrane technology. This paper reports on the successful use of air-stimulated surface polymerization of dopamine hydrochloride incorporated ZnO nanoparticles (ZnO NPs) for impeding the intrinsic hydrophobicity and low anti-(bio)fouling resistivity of polytetrafluoroethylene (PTFE) hollow-fiber membranes (HFMs). The study involved the use of pristine and polydopamine (Pdopa) coated PTFE HFMs, both with and without the presence of an air supply and added ZnO NPs. Zeta potential measurements were performed to evaluate the dispersion stability of ZnO NPs prior to immobilization, while morphological characterization and time-dependency of the Pdopa growth layer were illustrated through scanning electron microscopy. Pdopa surface polymerization and ZnO NPs immobilization were confirmed using FT-IR and EDX spectroscopy. Transformation of the PTFE HFM surface features to superhydrophilic was demonstrated through water contact angle analysis and the stability of immobilized ZnO NPs assessed by ICP analysis. Anti-fouling criteria and (bio)fouling resistivity performance of the surface-modified membranes were assessed through flux recovery determination of bovine serum albumin in dead-end filtration as well as dynamic-contact-condition microbial evaluation against Staphylococcus spp. and Escherichia coli, respectively. The filtration recovery ratio and antimicrobial results suggested promising surface modification impacts on the anti-fouling properties of PTFE HFM. As such, the method represents the first successful use of air-stimulated Pdopa coating incorporating ZnO NPs to induce superhydrophilic PTFE HFM surface modification. Such a method can be extended to the other membranes associated with water treatment processes.

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Performance of production of polyhydroxyalkanoates from food waste fermentation with Rhodopseudomonas palustris

Dan

Jing

Tian

et al. 2023

Bioresource Technology

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Impact of different inoculum sources on the performance of membrane bioreactors for municipal wastewater treatment: Dynamic membrane versus ultrafiltration membrane

Cited by 7 publications

References 39 publications

Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Enhanced energy recovery in municipal wastewater treatment plants through co-digestion by anaerobic membrane bioreactors: current status and future perspectives

Advanced (bio)fouling resistant surface modification of PTFE hollow-fiber membranes for water treatment

Performance of production of polyhydroxyalkanoates from food waste fermentation with Rhodopseudomonas palustris

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