New option of MBR-RO process for production of NEWater from domestic sewage

Qin, Jianjun; Kekre, Kiran A.; Tao, Guihe; Oo, Maung Htun; Wai, Maung Nyunt; Lee, Ting Cui; Viswanath, Bala; Seah, Harry

doi:10.1016/j.memsci.2005.07.023

Cited by 103 publications

(47 citation statements)

References 19 publications

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“…Membrane processes employed in water reclamation schemes can produce water that is even purer than required for potable supply and industrial applications can create an additional demand for intensively treated wastewater. The electronics industry requires ultra pure water and is a driver for the expansion of water reclamation in Singapore (Qin et al, 2006(Qin et al, , 2009) (cf. Section 3.3.2).…”

Section: Demand For High Quality Watermentioning

confidence: 99%

Increasing urban water self-sufficiency: New era, new challenges

Rygaard

Binning

Albrechtsen

2011

Journal of Environmental Management

139

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Urban water supplies are traditionally based on limited freshwater resources located outside the cities. However, a range of concepts and techniques to exploit alternative water resources has gained ground as water demands begin to exceed the freshwater available to cities. Based on 113 cases and 15 in-depth case studies, solutions used to increase water self-sufficiency in urban areas are analyzed. The main drivers for increased self-sufficiency were identified to be direct and indirect lack of water, constrained infrastructure, high quality water demands and commercial and institutional pressures. Case studies demonstrate increases in self-sufficiency ratios to as much as 80% with contributions from recycled water, seawater desalination and rainwater collection. The introduction of alternative water resources raises several challenges: energy requirements vary by more than a factor of ten amongst the alternative techniques, wastewater reclamation can lead to the appearance of trace contaminants in drinking water, and changes to the drinking water system can meet tough resistance from the public. Public water-supply managers aim to achieve a high level of reliability and stability. We conclude that despite the challenges, self-sufficiency concepts in combination with conventional water resources are already helping to reach this goal.

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Section: Demand For High Quality Watermentioning

confidence: 99%

Increasing urban water self-sufficiency: New era, new challenges

Rygaard

Binning

Albrechtsen

2011

Journal of Environmental Management

139

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“…Given the complementary treatment capacity of MBR and NF/RO membrane filtration, there is significant scope for the coupling of these two treatment processes to achieve an overall enhanced performance [28][29][30][31][32]. Qin et al [28] reported an MBR-RO pilot study for the reclamation of domestic sewage in Singapore, demonstrating a consistently high treated water quality with respect to several basic water quality parameters such as TOC, NO 3 − , and NH 4 + .…”

Section: Introductionmentioning

confidence: 99%

Combining MBR and NF/RO membrane filtration for the removal of trace organics in indirect potable water reuse applications

Alturki

Tadkaew

McDonald

et al. 2010

Journal of Membrane Science

229

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“…Advanced membrane bioreactor (MBR) which is a combination of the conventional activated sludge process (ASP) and Microfiltration/Ultrafiltration membrane separation has been widely used in treatment of domestic sewage as MBR has advantages of consistently high quality of effluent, small footprint, reduced sludge production and simple system operation and facility management over ASP [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Stephenson et al [2] have introduced a number of MBRs for treatment of municipal wastewater.…”

Section: Introductionmentioning

confidence: 99%

“…Judd [9] has reviewed the MBR technology with focus on principles and applications of MBRs. Tao et al [12,13] have investigated different types of submerged MBRs under the tropical conditions and demonstrated the advantages of MBR technology for reclamation of the domestic sewage.…”

Section: Introductionmentioning

confidence: 99%

Pilot Study on Treatment of Wastewater from an Ethylene Plant with Membrane Bioreactor Technology

Qin¹,

Oo²,

Dutková³

et al. 2008

TOCENGJ

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Pilot studies were conducted with an anoxic/aerobic concept membrane bioreactor (MBR) technology and a hollow fiber Petro ® MBR system with capacity of 12 m 3 /d was operated continuously (24-hour) during the study. Trials on different membrane fluxes were conducted to obtain the sustainable flux while mixed liquor suspended solid (MLSS) was maintained at 9-11 g/L. The results of the MBR pilot trials showed that no obvious fouling of the membrane was found when the plant was operated at the flux of 12 L /m 2 /h (LMH) over 3 months and 15 LMH over one month during the pilot study. Design guidelines such as hydraulic retention time (HRT), sludge retention time (SRT), anoxic and aeration volume ratio, re-circulation flow rate and air scouring were obtained for a full-scale plant. It was concluded that treatment of wastewater from an ethylene plant without addition of any chemicals using MBR technology is feasible. The product quality consistently met the requirement for discharge and was suitable for the feed of further reverse osmosis (RO) post-treatment.

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New option of MBR-RO process for production of NEWater from domestic sewage

Cited by 103 publications

References 19 publications

Increasing urban water self-sufficiency: New era, new challenges

Increasing urban water self-sufficiency: New era, new challenges

Combining MBR and NF/RO membrane filtration for the removal of trace organics in indirect potable water reuse applications

Pilot Study on Treatment of Wastewater from an Ethylene Plant with Membrane Bioreactor Technology

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