Membrane separation as a pre-treatment process for oily saline water

Tawalbeh, Muhammad; Mojjly, Abdullah Al; Al‐Othman, Amani; Hilal, Nidal

doi:10.1016/j.desal.2018.07.029

Cited by 140 publications

(31 citation statements)

References 395 publications

(326 reference statements)

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“…Furthermore, the oil concentrations for wastewater treatment of the food industry usually range between 120-560 mg/L [7] and the oil concentrations of wastewater generated by petroleum refineries are between 100-300 mg/L and 5000 mg/L in tank bottom [8]. For treatment of oil-water emulsions, there are several methods to use for treating these emulsions such as coagulation/flocculation by air floatation, ultrasonic separation and membrane separation [9][10][11][12]. Moreover, the natural materials, such as cellulose, can be used.…”

Section: Introductionmentioning

confidence: 99%

Optimisation of the removal of oil in water emulsion by using ceramic microfiltration membrane and hybrid coagulation/sand filter-MF

Almojjly

Johnson

Mandale

et al. 2019

Journal of Water Process Engineering

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Many industries produce oil-water emulsions as major waste streams, which require specialised treatment, including the petrochemical, oil and gas and some food industries. One method to remove oil droplets from wastewater is using ceramic tubular microfiltration membranes. However, such membranes are vulnerable to fouling, which causes operational impairment. The aim of this work is to reduce ceramic membrane fouling by exploring the combination of ceramic membranes with several pre-treatment options. We have compared direct oil-water emulsion treatment using a ceramic microfiltration (MF) membrane with a hybrid system of coagulation/ sand filtration pre-treatment prior to ceramic membrane MF. Superior permeate flux was obtained using the hybrid coagulation/sand filter-MF process due to a reduction of membrane fouling by reducing the oil concentration in the inlet emulsion to the ceramic membrane. Moreover, the oil removal efficiency for hybrid coagulation/sand

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Section: Introductionmentioning

confidence: 99%

Optimisation of the removal of oil in water emulsion by using ceramic microfiltration membrane and hybrid coagulation/sand filter-MF

Almojjly

Johnson

Mandale

et al. 2019

Journal of Water Process Engineering

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“…With the growth of industry, the amount of oily wastewater is continuously increasing. Oily wastewater significantly impacts the environment by polluting drinking, groundwater and seawater resources [1][2][3][4][5][6]. As a result, the damage can be expanded to the whole ecosystem.…”

Section: Introductionmentioning

confidence: 99%

A Review on Current Development of Membranes for Oil Removal from Wastewaters

Bolto

Zhang

et al. 2020

Membranes

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The current situation with the problems associated with the removal of oil from wastewaters by membranes is being explored. Many types of membranes have been investigated-organic polymers, inorganic or ceramic species and hybrids of the two. Polymeric membranes can be designed to facilitate the passage of oil, but the more successful approach is with hydrophilic types that encourage the passage of water. Ceramic membranes have an advantage here as they are less often irreversibly fouled and give a higher recovery of oil, with a lower flux decline. Furthermore, they can be cleaned up by a simple heating procedure. More attention should be given to understanding the mechanism of fouling so that operating conditions can be optimised to further reduce fouling and further decrease the flux decline, as well as assisting in the design of antifouling membranes. Another obstacle to ceramic membrane use is the high cost of manufacture. Cheaper starting materials such as clays have been surveyed.

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“…These and other pretreatments on cellulosic sludge are being effectively used to extract sugars from the biomass. Several processes nowadays that can be used for the treatment of pulp and paper industry wastewater such as biological processes, adsorption, advanced oxidation, chemical coagulation, electrocoagulation, and membrane separation 31‐34 …”

Section: Introductionmentioning

confidence: 99%

“…Several processes nowadays that can be used for the treatment of pulp and paper industry wastewater such as biological processes, adsorption, advanced oxidation, chemical coagulation, electrocoagulation, and membrane separation. [31][32][33][34] Cellulose content is the only consideration for the evaluation of a biomass source. This is because the extraction of sugars must practically take place under milder conditions than strong-acid hydrolysis at high temperature.…”

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confidence: 99%

Techno‐economic analysis and a novel assessment technique of paper mill sludge conversion to bioethanol toward sustainable energy production

et al. 2020

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A novel bioprocess design to convert paper mill sludge (PMS) to biofuels is proposed in this work. The design utilizes cellulosic fiber recovered from the PMS via optimized de-ashing (HCl washing) step. This work specifically provided a technical and economic analysis of paper mill sludge conversion into biofuel production using a novel protocol. The protocol is based on scanning electron microscopy (SEM) analysis to assess the quality of the contained cellulose prior to further processing. The results are crucially important to determine the suitability of the PMS feedstock to produce biofuels. SEM analysis was employed as a preliminary screening tool to evaluate sludge digestibility and conversion. The SEM characterization technique established a direct relationship between the fiber morphology, presence of crystals salts and sugar yield after enzymatic hydrolysis. Substantial structural changes were observed before and after de-ashing the sludge samples, leading to a correlation between the surface morphology and the washing step. The results suggested that deashing changes the surface morphology and upon analysis, increased the sugar yield up to about 86% as opposed to 2.2% in sludge sample A as an example. The PMS conversion into biofuel was simulated using Aspen PLUS and compared to a similar process using corn stover as feedstock. The simulation results showed it is 20% cheaper to produce bioethanol from PMS compared to corn stover. The simulation revealed less energy demand by around 13 320 MJ/h compared to that when corn stover was used.

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Membrane separation as a pre-treatment process for oily saline water

Abstract: N. (2018). Membrane separation as a pre-treatment process for oily saline water. Desalination http://dx.

Cited by 140 publications

References 395 publications

Optimisation of the removal of oil in water emulsion by using ceramic microfiltration membrane and hybrid coagulation/sand filter-MF

Optimisation of the removal of oil in water emulsion by using ceramic microfiltration membrane and hybrid coagulation/sand filter-MF

A Review on Current Development of Membranes for Oil Removal from Wastewaters

Techno‐economic analysis and a novel assessment technique of paper mill sludge conversion to bioethanol toward sustainable energy production

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