Desalination of oilfield produced water associated with treatment of domestic wastewater and bioelectricity generation in microbial osmotic fuel cell

Ismail, Zainab Z.; Ibrahim, Mohammed A.

doi:10.1016/j.memsci.2015.05.012

Cited by 45 publications

(13 citation statements)

References 23 publications

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“…In the past few years, OsMFCs have been studied and developed in the aspects such as substrates and operation optimization. OsMFCs can treat both synthetic solution and actual wastewater, and it was reported that more than 50% of the treated wastewater could be extracted from the anode (Ge et al, 2013;Ismail and Ibrahim, 2015). Operation optimization focused on selecting the optimal draw solute, determining membrane orientation, and simplifying the cathode.…”

Section: Introductionmentioning

confidence: 99%

Effects of current generation and electrolyte pH on reverse salt flux across thin film composite membrane in osmotic microbial fuel cells

Qin

Abu-Reesh

2016

Water Research

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a b s t r a c tOsmotic microbial fuel cells (OsMFCs) take advantages of synergy between forward osmosis (FO) and microbial fuel cells (MFCs) to accomplish wastewater treatment, current generation, and high-quality water extraction. As an FO based technology, OsMFCs also encounter reverse salt flux (RSF) that is the backward transport of salt ions across the FO membrane into the treated wastewater. This RSF can reduce water flux, contaminate the treated wastewater, and increase the operational expense, and thus must be properly addressed before any possible applications. In this study, we aimed to understand the effects of current generation and electrolyte pH on RSF in an OsMFC. It was found that electricity generation could greatly inhibit RSF, which decreased from 16.3 ± 2.8 to 3.9 ± 0.7 gMH when the total Coulomb production increased from 0 to 311 C. The OsMFC exhibited 45.9 ± 28.4% lower RSF at the catholyte pH of 3 than that at pH 11 when 40 U external resistance was connected. The amount of sodium ions transported across the FO membrane was 18.3e40.7% more than that of chloride ions. Ion transport was accomplished via diffusion and electrically-driven migration, and the theoretical analysis showed that the inhibited electrically-driven migration should be responsible for the reduced RSF. These findings are potentially important to control and reduce RSF in OsMFCs or other osmotic-driven processes.

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Section: Introductionmentioning

confidence: 99%

Effects of current generation and electrolyte pH on reverse salt flux across thin film composite membrane in osmotic microbial fuel cells

Qin

Abu-Reesh

2016

Water Research

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“…The permeation of water back into the feed channel helps to remove the foulants from the membrane surface ). Ismail and Ibrahim (2015) demonstrated that fouling of the FO membrane occurred most likely due to the oil content of PW. MD is another novel membrane separation process and capable to treat highly concentrated solutions, such as PW.…”

Section: Pw Treatment Using Polymeric Membranementioning

confidence: 99%

Polymeric membranes for produced water treatment: an overview of fouling behavior and its control

Mondal

2016

Reviews in Chemical Engineering

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AbstractProduced water (PW) from the oil/gas field is an important waste stream. Due to its highly pollutant nature and large volume of generation, the management of PW is a significant challenge for the petrochemical industry. The treatment of PW can improve the economic viability of oil and gas exploration, and the treated water can provide a new source of water in the water-scarce region for some beneficial uses. The reverse osmosis (RO) and selective nanofiltration (NF) membrane treatment of PW can reduce the salt and organic contents to acceptable levels for some beneficial uses, such as irrigation, and different industrial reuses. However, membrane fouling is a major obstacle for the membrane-based treatment of PW. In this review, the author discusses the polymeric membrane (mainly RO/NF) fouling during PW treatment. Membrane fouling mechanisms by various types of foulants, such as organic, inorganic, colloidal, and biological matters, are discussed. The review concludes with some of the measures to control fouling by membrane surface modification approaches.

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“…The first OsBES study has provided a strong experimental evidence that the OsMFC achieved water flux of 3.94 ± 0.22 LMH (liters per square meter FO membrane per hour) with a 116-g NaCl L -1 catholyte, while there was no obvious water flux in a conventional MFC (Figure 2.6A) ). More than 50% of the treated wastewater could be extracted as clean water from various types of wastewater (Ge et al 2013b, Ismail andIbrahim 2015). That is, by using the OsBES technology, half of the wastewater can be potentially reused, instead of being discharged.…”

Section: Water Recoverymentioning

confidence: 99%

“…In the past few years, OsMFCs have been studied and developed in the aspects such as substrates and operation optimization. OsMFCs can treat both synthetic solution and actual wastewater, and it was reported that more than 50% of the treated wastewater could be extracted from the anode (Ge et al 2013b, Ismail andIbrahim 2015). Operation optimization focused on selecting the optimal draw solute, determining membrane orientation, and simplifying the cathode.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, OsMFCs can generate more electricity under both a batch mode and a continuous mode using either sodium chloride solution or artificial seawater as the catholyte (Ge et al 2013b). More than 50% of the treated wastewater could be extracted from the anode of an OsMFC (Ge et al 2013b, Ismail andIbrahim 2015). To improve our understanding of enhanced electricity generation in OsMFCs, a mathematical model has been developed and used to predict a reduction of internal resistance with increasing osmotic pressure gradient and water flux, thereby confirming the enhanced current generation (Qin et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Resource recovery by osmotic bioelectrochemical systems towards sustainable wastewater treatment

Qin

2017

Environ. Sci.: Water Res. Technol.

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(academic)Recovering valuable resources from wastewater will transform wastewater management from a treatment focused to sustainability focused strategy, and creates the need for new technology development. An innovative treatment concept -osmotic bioelectrochemical system (OsBES), which is based on cooperation between bioelectrochemical systems (BES) and forward osmosis (FO), has been introduced and studied in the past few years. An OsBES can accomplish simultaneous treatment of wastewater and recovery of resources such as nutrient, energy, and water (NEW). The cooperation can be accomplished in either an integrated (osmotic microbial fuel cells, OsMFC) or coupled (microbial electrolysis cell-forward osmosis system, MEC-FO) configuration.In OsMFC, higher current generation than regular microbial fuel cell (MFC) was observed, resulting from the lower resistance of FO membrane. The electricity generation in OsMFC could greatly inhibit the reverse salt flux. Besides, ammonium removal was successfully demonstrated in OsMFC, making OsMFCs a promising technology for "NEW recovery" (NEW: nutrient, energy and water). For the coupled OsBES, an MEC-FO system was developed. The MEC produced an ammonium bicarbonate draw solute via recovering ammonia from synthetic organic solution, which was then applied in the FO for extracting water from the MEC anode effluent. The system has been advanced with treating landfill leachate. A mathematical model developed for ammonia removal/recovery in BES quantitatively confirmed that the NH4 + ions serve as effective proton shuttles across cation exchange membrane (CEM). Resource Recovery by Osmotic Bioelectrochemical Systems towards Sustainable Wastewater TreatmentMohan Qin Abstract (general audience)Nowadays, wastewater is no longer considered as waste. Instead, it is a pool for different kinds of resources, such as nutrient, energy, and water (NEW). Various technologies were developed to achieve NEW recovery from wastewater. A novel concept, osmotic bioelectrochemical system (OsBES) has been introduced and studied in the past few years. OsBES is based on two technologies: bioelectrochemical systems (BES) and forward osmosis (FO); and the corporation between these two technologies could accomplish simultaneous wastewater treatment and resource recovery. We investigated two kinds of OsBES: one is osmotic microbial fuel cells (OsMFC), and the other is microbial electrolysis cell-forward osmosis system (MEC-FO). For OsMFC, a mathematical model was built to understand the internal resistance, which will affect the current generation according to Om's law (I=U/R). The salt transport across the cation exchange membrane (CEM) is related to the current generation. The ion transport, especially ammonium/ammonia transport, across CEM membrane in BES was modelled, which will help the BES design and operation for ammonia recovery systems. The system performance for wastewater treatment and resource recovery in MEC-FO was fully investigated with both synthetic wastewater and landfill leach...

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Desalination of oilfield produced water associated with treatment of domestic wastewater and bioelectricity generation in microbial osmotic fuel cell

Cited by 45 publications

References 23 publications

Effects of current generation and electrolyte pH on reverse salt flux across thin film composite membrane in osmotic microbial fuel cells

Effects of current generation and electrolyte pH on reverse salt flux across thin film composite membrane in osmotic microbial fuel cells

Polymeric membranes for produced water treatment: an overview of fouling behavior and its control

Resource recovery by osmotic bioelectrochemical systems towards sustainable wastewater treatment

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