Critical, sustainable and threshold fluxes for membrane filtration with water industry applications

Field, Robert W.; Pearce, Graeme

doi:10.1016/j.cis.2010.12.008

Cited by 300 publications

(182 citation statements)

References 44 publications

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“…Due to the limited practical applicability of critical flux, threshold and sustainable flux have been proposed [158,332]. While the threshold flux demarcates a low fouling from a high fouling region, the sustainable flux is one at which moderate fouling is tolerated based on balancing capital and operating costs; some guidelines are available that link measured threshold flux to sustainable flux [158]. However, in practice, it is difficult to measure the threshold flux in an operating plant as it involves flux-stepping involving conditions of high fouling rate that could be detrimental.…”

Section: Identifying Sustainable Fluxmentioning

confidence: 99%

“…The membrane material largely influences the initial rates of deposition of foulants due to the tendency of some materials to adsorb certain solutes or particulates more readily, as quantifiable by the Gibbs free energy of foulant-membrane interaction [154][155][156][157]. When the adsorption becomes such that the effective pore size of the membrane is reduced, the flux is adversely affected [158][159][160].…”

Section: Membrane Materials and Surface Morphologymentioning

confidence: 99%

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The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

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Abstract:The submerged membrane filtration concept is well-established for low-pressure microfiltration (MF) and ultrafiltration (UF) applications in the water industry, and has become a mainstream technology for surface-water treatment, pretreatment prior to reverse osmosis (RO), and membrane bioreactors (MBRs). Compared to submerged flat sheet (FS) membranes, submerged hollow fiber (HF) membranes are more common due to their advantages of higher packing density, the ability to induce movement by mechanisms such as bubbling, and the feasibility of backwashing. In view of the importance of submerged HF processes, this review aims to provide a comprehensive landscape of the current state-of-the-art systems, to serve as a guide for further improvements in submerged HF membranes and their applications. The topics covered include recent developments in submerged hollow fiber membrane systems, the challenges and developments in fouling-control methods, and treatment protocols for membrane permeability recovery. The highlighted research opportunities include optimizing the various means to manipulate the hydrodynamics for fouling mitigation, developing online monitoring devices, and extending the submerged HF concept beyond filtration.

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Section: Identifying Sustainable Fluxmentioning

confidence: 99%

Section: Membrane Materials and Surface Morphologymentioning

confidence: 99%

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

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“…The CF is slightly different than from the one mentioned earlier (Field et al, 1995 (Field & Pearce, 2011). The operational flux selection is aimed to meet the economical objective of optimizing capex and opex.…”

Section: Critical Flux Conceptmentioning

confidence: 99%

Membrane bioreactor for domestic wastewater treatment: principles, challanges and future research directions

Bilad

2017

IJOST

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Membrane bioreactors (MBRs) have recently become widely accepted as an advanced technology for treatment of domestic and industrial wastewaters. The objective of this review is to provide overview on MBR technology for wastewater treatment application. It includes discussions on the fundamental, core problems (membrane fouling), recent effective development approach (dynamic filtration systems) and future research direction of MBRs. Since MBRs integrate a conventional activated sludge process with membrane filtration, and both fundamental aspects are discussed first. Later, a comprehensive discussion about membrane fouling, the main problems in MBR, is provided, including fouling control strategies. The discussion on the MBR membranes and relation between membrane properties and MBR performance is also provided. This review also includes one of the most promising MBR technologies that specifically design to manage membrane fouling: dynamic filtration systems. Lastly, insight into an approach to address MBRs challenges and recent research and developments are provided.

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“…For design purposes, the concept of these fluxes represent an important 646 characteristic of membrane operation especially in UF/MF systems [138]. Fouling of 647 a membrane can be shown through the presence of limiting flux and the onset of 648 critical flux [139].…”

Section: Limiting and Critical Fluxes 633mentioning

confidence: 99%

Membrane-Based Point-Of-Use Water Treatment (PoUWT) System in Emergency Situations

Shamsuddin

Das

Starov

2014

Separation & Purification Reviews

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Citation: SHAMSUDDIN, N., DAS, D.B. and STAROV, V., 2016. Membranebased point-of-use water treatment (PoUWT) system in emergency situations: a review. Separation and Purification Reviews, 45 (1), pp. 50-67. During emergency situations, effective and quick reactions are vital in order to supply 7 safe and unpolluted drinking water within approved guidelines Point-of-use water 8 treatment (PoUWT) system, for instance, portable membrane-based water treatment 9 devices, could help affected people to survive while waiting for aids to arrive. In the 10 context of portable membrane-based water purification devices, it is also found that 11 the most literature does not mention particle depositions and interactions, and 12 membrane fouling mechanisms that might occur in these devices.

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Critical, sustainable and threshold fluxes for membrane filtration with water industry applications

Cited by 300 publications

References 44 publications

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

Membrane bioreactor for domestic wastewater treatment: principles, challanges and future research directions

Membrane-Based Point-Of-Use Water Treatment (PoUWT) System in Emergency Situations

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