Composite hollow fiber membranes with different poly(dimethylsiloxane) intrusions into substrate for phenol removal via extractive membrane bioreactor

Loh, Chun Heng; Zhang, Yuan; Goh, S. H.; Wang, Rong; Fane, Anthony G.

doi:10.1016/j.memsci.2015.12.001

Cited by 71 publications

(68 citation statements)

References 29 publications

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“…However, consideration must be given to membrane fouling which can occur due to particles and colloids present in the feed streams [3,9]. The most important membrane technologies used to remove phenols from wastewater are extractive membrane bioreactors and hollow fiber membranes; photocatalytic membrane reactors; high-pressure membrane processes such as nanofiltration, reverse osmosis, and pervaporation; and membrane distillation [3,9,24].…”

Section: Phenol Removal By Membrane Processesmentioning

confidence: 99%

“…Loh et al prepared composite hollow fiber membranes with different levels of polydimethylsiloxane (PDMS) intrusion by coating a layer of PDMS on a polyetherimide (PEI) hollow fiber substrate for phenol removal [24]. Praveen and Loh investigated removal of phenol from wastewater by hollow fiber membranes impregnated with trioctylphosphine oxide (TOPO), which was immobilized in the hollow fiber membrane for removal of phenol.…”

Section: Extractive Membrane Bioreactors (Embr) and Hollow Fiber Membmentioning

confidence: 99%

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A Short Review of Techniques for Phenol Removal from Wastewater

et al. 2016

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Phenolic compounds are priority pollutants with high toxicity even at low concentrations. In this review, the efficiency of both conventional and advanced treatment methods is discussed. The applicability of these treatments with phenol and some common derivatives is compared. Conventional treatments such as distillation, absorption, extraction, chemical oxidation, and electrochemical oxidation show high efficiencies with various phenolic compounds, while advanced treatments such as Fenton processes, ozonation, wet air oxidation, and photochemical treatment use less chemicals compared to the conventional ones but have high energy costs. Compared to physicochemical treatment, biological treatment is environmentally friendly and energy saving, but it cannot treat high concentration pollutants. Enzymatic treatment has proven to be the best way to treat various phenolic compounds under mild conditions with different enzymes such as peroxidases, laccases, and tyrosinases.

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Section: Phenol Removal By Membrane Processesmentioning

confidence: 99%

Section: Extractive Membrane Bioreactors (Embr) and Hollow Fiber Membmentioning

confidence: 99%

A Short Review of Techniques for Phenol Removal from Wastewater

et al. 2016

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“…The superiority of this configuration is exemplified by an EMBR where the receiving solution is biomedium [28,29,37]; (2) the capability to offer more specific and efficient point-source treatment of individual industrial effluent unlike the centralized classical techniques [37,48]; and (3) the low energy consumption due to operation at room temperature and atmospheric pressure [28,29,37,49]. In order to get a deeper understanding of the aqueous-aqueous extractive systems, a specific process, namely an EMBR process with biomedium as the receiving solution, is selected for detailed elaboration in the following section.…”

Section: Thesis Outlinementioning

confidence: 99%

“…Technologies currently available for phenol treatment include: (1) traditional methods such as distillation [14,15], extraction [16], adsorption [17], chemical oxidation [18,19], and biodegradation [20]; (2) advanced methods such as photo oxidation processes [21,22] and membrane separation technologies [23,24]; and (3) hybrid systems which combine traditional and advanced techniques, for example, reverse osmosis coupled with adsorption process [25], membrane bioreactor (MBR) [26], extractive membrane bioreactor (EMBR) [27][28][29], membrane aromatic recovery system (MARS) [30] and membrane pervaporation [31]. As presented in dealing with treatment of phenolic pollutants.…”

Section: Introductionmentioning

confidence: 99%

“…This process exhibits advantages including low energy consumption, low operating costs and easy scalability. One typical variation of the aqueous-aqueous extractive process is an EMBR system with biomedium as the receiving solution [1,29,34,35]. Owing to its special configuration, EMBR offers unique features such as operation at ambient temperature and pressure, independent biodegradation of permeated organic pollutants under optimum conditions, and generation of effluents with small quantity [27].…”

Section: Introductionmentioning

confidence: 99%

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Development of high-performance polydimethylsiloxane-based nanofibrous composite membranes for phenol removal from wastewater

Jin¹

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Joseph. With their kind support and help on research safety, equipment usage, purchasing and administrative work, I would be able to carry out my routine research work smoothly and efficiently. I am highly honored to join IGS-NEWRI\SMTC to undertake my PhD study in Nanyang Technological University (NTU), Singapore. I greatly appreciate the Environment & Water Industry Programme Office (EWI) for offering me the prestigious National Research Foundation-Environmental & Water Technologies (NRF-EWT) PhD scholarship, which supported me with sufficient allowances and provided me with a variety of avenues to communicate with both academic researchers and industrial practitioners throughout the world by diverse opportunities such as local and international conferences, symposiums and workshops. I would also like to acknowledge the research funding support from the Singapore NRF under its EWT Strategic Research Programme administered by the EWI Programme Office of the PUB (EWI RFP 1102-IRIS-02-03). The funding support and research facilities from NEWRI and SMTC are also much appreciated. Last but not least, this thesis is dedicated to my beloved parents, Lu Hua and Jin Jie, who always give me strength, encouragement, support and love in iv my endeavors, without which I would not have been able to accomplish the PhD journey.

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Upgrading sequencing batch reactor using attached biofilm

Abdelaziz¹,

Fouad

Mossad

2021

Water Environment Research

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A conventional sequencing batch reactor (SBR) was upgraded using fixed biofilm carriers with a specific surface area around 18 m 2 m −3 . The upgraded SBR was investigated to remove phenol from high strength wastewater operated under various operational conditions. The operational conditions used were variable volume exchange ratio (VER) up to 75%, hydraulic retention time (HRT) from (10.7-21.3 hr), aeration time (from 2 to 8 hr), and initial phenol concentration up to 600 mg L −1 . It was found that the upgraded SBR increased the removal efficiencies of biological oxygen demand (BOD 5 ), chemical oxygen demand (COD), and total suspended solids (TSS) by about 10% using high strength wastewater without phenol compared to SBR. Furthermore, the removal rate of phenol for the upgraded SBR was higher than conventional SBR by about 18% at 600 mg L − of initial phenol concentration under the same operational conditions. Compared to the conventional SBR, the upgraded version reduced the aeration step by 25% and achieved higher removal efficiency of phenol. Moreover, it reduced the excess sludge by about 23% and enhanced its properties by lowering the sludge volume index (SVI) by about 33%. © 2021 Water Environment Federation • Practitioner points• Upgrading conventional SBR by adding biofilm carriers is necessary for wastewater treatment with high strength wastewater. • The upgraded SBR has a higher resistance toward phenol compound due to the presence of the attached biofilm. • The upgraded SBR enhances sludge settling properties, decreases the amount of excess sludge, and also reduces the start-up period. • The number of cycles per day by upgraded SBR was more than the conventional SBR by 15%. • The upgraded SBR is an effective system and has good operational stability.

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Composite hollow fiber membranes with different poly(dimethylsiloxane) intrusions into substrate for phenol removal via extractive membrane bioreactor

Cited by 71 publications

References 29 publications

A Short Review of Techniques for Phenol Removal from Wastewater

A Short Review of Techniques for Phenol Removal from Wastewater

Development of high-performance polydimethylsiloxane-based nanofibrous composite membranes for phenol removal from wastewater

Upgrading sequencing batch reactor using attached biofilm

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