A comparison of variations in blocking mechanisms of membrane-fouling models for estimating flux during water treatment

Khan, Imtiaz Afzal; Lee, Yong Soo; Kim, Jong Oh

doi:10.1016/j.chemosphere.2020.127328

Cited by 51 publications

(21 citation statements)

References 37 publications

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“…However, considerable operational and maintenance cost have to be assessed properly to conduct some strategies for avoiding severe fouling on membrane surface due to trapped pollutants on membrane pores through cleaning stage, chemical surface modification, or pre-treatment process [22,23]. The mechanism of membrane fouling may follow one of Hermia's models that consist of four different patterns namely complete blocking, standard blocking, intermediate blocking, and cake filtration models [11,24].…”

Section: Membrane Separationmentioning

confidence: 99%

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Martini

Afroze

2021

Jurnal Teknologi

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In this review article, the recent development of organic sorbents derived from plant and animal waste for treating polluted aqueous media is presented. The application of biomass has been recognized reliable to adsorb hazardous pollutants contained in wastewater generated by emerging industries. This paper also discusses other existing technologies for removing pollutants including heavy metals, dyes, oil and grease, antibiotic and phenolic compounds from polluted aqueous media. Furthermore, several prominent examples of plant and animal wastes such as eucalyptus bark, pine bark, rice husk, various fruit peels, and animal bones are also properly reviewed. The effects of modification techniques on sorbent performance such as carbonization, pyrolysis, and chemical impregnation using acid or alkaline chemicals are considerably included. Some gaps in current literature are also discussed including the tendency of certain targeted pollutants, the use of simulated aqueous media, the scale of research projects, and the prominent modification procedures. Eventually, based on the relevant literature, clear conclusion has been drawn that these natural disposals have great potentiality as environmentally friendly sorbent alternative to other commercial expensive sorbents, and their reuse has been part of green solutions supporting a circular economy system.

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Section: Membrane Separationmentioning

confidence: 99%

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Martini

Afroze

2021

Jurnal Teknologi

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“…For a constant pressure filtration process, fouling mechanism of the membrane can be evaluated by the permeate flux reduction as a function of operating time according to Hermia's model (Khan et al, 2020). The blocking models are usually recognized as: (a) complete blocking, (b) intermediate blocking, (c) standard blocking, and (d) cake filtration (Peng & Tremblay, 2008).…”

Section: Methodsmentioning

confidence: 99%

Oily wastewater treatment by blend polyether imide‐sulfonated poly (ether ether keton) hollow fibre membrane through a side‐stream MBR process

Mehdi

Mansourizadeh

Ghaedi

et al. 2022

Water & Environment J

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The blend polyether imide‐sulfonated poly (ether ether keton) (PEI‐sPEEK) hollow fibre membrane was prepared for oily wastewater treatment of the natural gas liquid plant (NGL‐900, Gachsaran, Iran) through a side‐stream membrane bioreactor (MBR) process. Using PEI/sPEEK ratio of 90/10, a good compatibility of PEI and sPEEK polymers was achieved by DSC analysis. The modified membrane showed an open structure with large finger‐likes, overall porosity of about 80% and mean surface pore size of 10 nm. In addition, the membrane hydrophilicity significantly improved as water contact angle reduced from about 82° to 58°. In the MBR process, the improved membrane presented oil rejection, COD, TSS and turbidity reduction of about 99.9%, 99.7%, 98.9%, and 99.7%, respectively. The membrane showed a good antifouling property with flux recovery ratio (FRR) of 80.2% where the cake filtration was the dominant fouling mechanism. The modified membrane can be a promising alternative for treatment of industrial oily wastewater due to the enhanced properties.

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“…Other than that, membranes have practical operating procedures, and flexibility in design, however, the initial installation and maintenance cost can be constraints [45]. Another concern when using this technique is its main issue, namely membrane fouling which reduce the performance over time [46].…”

Section: Membrane Filtrationmentioning

confidence: 99%

The Utilization of Algae and Seaweed Biomass for Bioremediation of Heavy Metal-Contaminated Wastewater

2022

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The presence of heavy metals in water bodies is linked to the increasing number of industries and populations. This has serious consequences for the quality of human health and the environment. In accordance with this issue, water and wastewater treatment technologies including ion exchange, chemical extraction, and hydrolysis should be conducted as a first water purification stage. However, the sequestration of these toxic substances tends to be expensive, especially for large scale treatment methods that require tedious control and have limited efficiency. Therefore, adsorption methods using adsorbents derived from biomass represent a promising alternative due to their great efficiency and abundance. Algal and seaweed biomass has appeared as a sustainable solution for environmentally friendly adsorbent production. This review further discusses recent developments in the use of algal and seaweed biomass as potential sorbent for heavy metal bioremediation. In addition, relevant aspects like metal toxicity, adsorption mechanism, and parameters affecting the completion of adsorption process are also highlighted. Overall, the critical conclusion drawn is that algae and seaweed biomass can be used to sustainably eliminate heavy metals from wastewater.

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A comparison of variations in blocking mechanisms of membrane-fouling models for estimating flux during water treatment

Cited by 51 publications

References 37 publications

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Current Development of Sorbents Derived From Plant and Animal Waste as Green Solution for Treating Polluted Aqueous Media

Oily wastewater treatment by blend polyether imide‐sulfonated poly (ether ether keton) hollow fibre membrane through a side‐stream MBR process

The Utilization of Algae and Seaweed Biomass for Bioremediation of Heavy Metal-Contaminated Wastewater

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