Performance of submerged membrane bioreactor (SMBR) with and without the addition of the different particle sizes of GAC as suspended medium

Johir, M.A.H.; Shanmuganathan, Sukanyah; Vigneswaran, S.; Kandasamy, Jaya

doi:10.1016/j.biortech.2013.03.032

Cited by 54 publications

(28 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More details on aeration are given in Section 6.2. In connection with (v), the nature of the biomass in MBRs can be partially controlled through the addition of coagulants or flocculants [124,[140][141][142][143][144] and adsorbent agents (e.g., activated carbon [145][146][147][148][149][150][151]). In addition, the bioprocess parameters, such as the sludge retention time (SRT), influence the biomass and supernatant as well as the fouling [152].…”

Section: Blocking and Blocking Mitigation In Submerged Hf Modulesmentioning

confidence: 99%

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

et al. 2017

View full text Add to dashboard Cite

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.

show abstract

Section: Blocking and Blocking Mitigation In Submerged Hf Modulesmentioning

confidence: 99%

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

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Another advantage is, unlike in column mode of operation, smaller size adsorbents can be used in SMAHS for higher removal of pollutants and this has been proved in past studies [5,6]. Johir et al [5] studied the effect of three particle sizes of granular activated carbon (GAC) on scouring of membrane and dissolved organic carbon removal in SMAHS.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modelling of Nitrate Removal from Water Using a Submerged Membrane Adsorption Hybrid System with Four Adsorbents

et al. 2018

View full text Add to dashboard Cite

Excessive concentrations of nitrate in ground water are known to cause human health hazards. A submerged membrane adsorption hybrid system that includes a microfilter membrane and four different adsorbents (Dowex 21K XLT ion exchange resin (Dowex), Fe-coated Dowex, amine-grafted (AG) corn cob and AG coconut copra) operated at four different fluxes was used to continuously remove nitrate. The experimental data obtained in this study was simulated mathematically with a homogeneous surface diffusion model that incorporated membrane packing density and membrane correlation coefficient, and applied the concept of continuous flow stirred tank reactor. The model fit with experimental data was good. The surface diffusion coefficient was constant for all adsorbents and for all fluxes. The mass transfer coefficient increased with flux for all adsorbents and generally increased with the adsorption capacity of the adsorbents.

show abstract

“…Consequently there is less membrane fouling and the operational time increases (Johir et al 2011;Johir et al 2013).…”

mentioning

confidence: 99%

Submerged membrane – (GAC) adsorption hybrid system in reverse osmosis concentrate treatment

Shanmuganathan

Nguyễn

Jeong

et al. 2015

Separation and Purification Technology

View full text Add to dashboard Cite

Nitrate contamination of ground and surface waters causes environmental pollution and human health problems in many parts of the world. This study tests the nitrate removal efficiencies of two ion exchange resins (Dowex 21k XLT and iron modified Dowex 21k XLT (Dowex-Fe)), and two chemically modified bio-adsorbents (amine grafted corn cob (AG corn cob) and amine grafted coconut copra (AG coconut copra)) using a dynamic adsorption treatment system. A submerged membrane (microfiltration) adsorption hybrid system > SMAHS treatment of polluted water continuously maintained NO3 -below WHO limit.> NO3 -adsorption capacity: Dowex-Fe > Dowex > coconut copra/amine > corn cob/amine > Treated water volume was in the same order as the adsorption capacity.> Transmembrane pressure increased with flux and was highest for bio-adsorbents.

show abstract

Performance of submerged membrane bioreactor (SMBR) with and without the addition of the different particle sizes of GAC as suspended medium

Cited by 54 publications

References 22 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

Mathematical Modelling of Nitrate Removal from Water Using a Submerged Membrane Adsorption Hybrid System with Four Adsorbents

Submerged membrane – (GAC) adsorption hybrid system in reverse osmosis concentrate treatment

Contact Info

Product

Resources

About