Mohammad Al-Shannag

University of Jordan | UJ · Department of Chemical Engineering

Greywater (GW) treatment by the electrocoagulation (EC) technique alone might not meet the required standards in terms of pollutant removal, specifically when GW contains high loads of pollutants. In this preliminary study, a sand filtration (SF) unit was integrated with the EC technique as a pretreatment step to enhance the EC process for treating...

The objective of this study is to prepare magnetic composites as adsorbents for Cr(VI) from wastewater. The prepared composites are magnetic activated carbon (M-AC), magnetic ash (M-ASH), and magnetic sand (M-SAND). These composites were characterized using XRF, FTIR, XRD, and TGA, and then tested as adsorbents for toxic Cr(VI) ions from synthetic...

Mediterranean countries produce up to 97% of the total global olive production. Besides being a serious environmental burden, olive mill waste represents a potential resource of useful materials for recovery and valorization. In this work, the adsorption characteristics and potential of bioadsorbent material manufactured by alkali treatment of oliv...

A novel approach using the integration of electrocoagulation, with one or more treatment processes has been recently practiced to improve the removal of colloidal and non-biodegradable pollutants. Several treatment processes including adsorption, chemical coagulation, magnetic field, reverse osmosis, and membrane filtration have been combined with...

Paper mill sludge (PMS) can be efficiently utilized to produce fuels and chemicals. However, wastewater is usually generated during the de-ashing step of the PMS for fibrous materials recovery. Per process requirements, the wastewater stream must be treated which results in an increase in the overall process production cost. Therefore, this researc...

The integration of electrocoagulation, EC with one or more treatment processes has become a novel approach that able to improve the removal of colloidal and non-biodegradable pollutants. Several treatment processes including adsorption, chemical coagulation, magnetic field, reverse osmoses and membrane filtration have been combined with electrocoag...

The treatment of olive mill wastewater (OMW) in Jordan was investigated in this work using ultrasound oxidation (sonolysis) combined with other advanced oxidation processes such as ultraviolet radiation, hydrogen peroxide (H2O2) and titanium oxide (TiO2) catalyst. The efficiency of the combined oxidation process was evaluated based on the changes i...

Abstract In this work, olive cake was treated by applying the alkali hydrolysis process in order to produce an adsorbent material for biodiesel purification. The treatment was performed with an aqueous solution of 7.5 wt% NaOH in a solid-to-liquid mass ratio of 1:6 at 90 °C followed by filtration, washing, drying, and sieving. The structure and co...

Electrocoagulation combined process

The electrocoagulation (EC) combined treatment processes have shown promising performances in which the removal of pollutants from industrial wastewater was greatly enhanced. The integration of a free radical producing step with EC has been considered as one of these new combinations that show synergy and improvements in the overall cleaning proces...

The combination of electrocoagulation with another process is a promising approach to enhance the removal efficiency of water pollutants. For instance, free radical-assisted electrocoagulation is a new combination showing higher performance. There are different combinations depending on the free radical source. This article reviews free radical-ass...

Camelina sativa is a cool-season oil seed crop that has been proven to produce various biofuels. The present study investigated the technical possibilities of using whole camelina biomass as a model feedstock in a biorefinery.

This review focuses on the performance of immobilized cell bioreactors utilizing a magnetic field. These reactors utilized immobilized cells on magnetic particles or beads as the solid phase. All published research papers dealing with the performance of immobilized cell bioreactors utilizing a magnetic field from the early 1960s to the present time...

A vast number of publications have investigated the application of electrocoagulation (EC) process heavy metal ions removal from wastewaters. Most of these studies were simple lab-scale using synthetic wastewater with the absence of holistic and systematic approach to consider the process complexity. This comprehensive review considers the fundamen...

Grey water (GW) is a valuable source for water reclamation in many useful applications. In order to be safe for reuse, grey water should undergo sufficient treatment. In the last few years, electrocoagulation (EC) technique has proved to be an attractive method for GW treatment. However, an important consideration when dealing with grey water is th...

Nowadays, heavy metal ions produced from Industrial and human activities are considered as major source of environmental contamination that led to deterioration of many ecosystems and social health. This situation represents a big challenge to develop sustainable treatment methods to remove these contaminations. Among the treatment processes that a...

In this study, cadmium ions, Cd(II), were removed from aqueous solutions using Ballota Undulata. Experimental data were exploited for kinetic and thermodynamic assessments related to adsorption processes. The different variables affecting the adsorption capacity such as pH, contact time, temperature, adsorbent particle size and mass of adsorbent ha...

The main objective of this article is devoted to reviewing all previous contributions concerning immobilized enzyme bioreactors utilizing a magnetic field. These reactors used magnetic supports or beads with immobilized enzymes as the solid phase. All published researches from the early beginning after the middle of the last century to the present...

This review focuses on the performance of immobilized cell bioreactors utilizing a magnetic field. These reactors utilized immobilized cells on magnetic particles or beads as the solid phase. All published research papers dealing with the performance of immobilized cell bioreactors utilizing a magnetic field from the early 1960s to the present time...

This review focuses on the performance of immobilized cells bioreactors utilizing a magnetic field. These reactors utilized immobilized cells on the magnetic particles or beads as the solid phase. All published researches dealing with the performance of Immobilized cells bioreactors utilizing a magnetic from the early sixties of the last century to...

The main objective of this article is devoted to reviewing all previous contributions concerning immobilized enzyme bioreactors utilizing a magnetic field. These reactors used magnetic supports or beads with immobilized enzymes as the solid phase. All published researches from the early beginning after the middle of the last century to the present...

The state of Wisconsin has existing pulp mill infrastructure capable of converting wood into biofuel and value-added products such as lumber, pulp, and paper. Each day, pulp and paper mills produce a waste material that is commonly referred to as sludge. Sludge is typically sent to a landfill or concentrated for burning to produce steam. The primar...

A series of batch lab-scale experiments were performed to investigate the performance of dead phosphorylated algal biomass of Spirogyra species for the bioadsorption of Cu+2 ions from aqueous solutions. FT-IR and SEM analysis were performed to characterize the phosphorylated and raw algae. The SEM analysis indicated that the phosphorus content incr...

The state of Wisconsin has existing pulp mill infrastructure capable of converting wood into biofuel and value-added products such as lumber, pulp, and paper. Each day, pulp and paper mills produce a waste material that is commonly referred to as sludge.

The present paper investigated the technical possibilities of bioethanol production from coffee pulp in a sustainable manner . Coffee pulp is a largely underutilized waste stream and has the potential to become a bioethanol feedstock if processing is economically viable.

A novel submerged membrane electro-bioreactor (SMEBR) was investigated to improve the membrane filterability and reduce the disturbances of the volumetric loading rates by applying an electrical direct current (DC) field. The strategy of this study was based on operating the SMEBR for 53 days at a constant transmembrane pressure. For the comparison...

The present paper investigated the technical possibilities of bioethanol production from coffee pulp in a sustainable manner. Coffee pulp is a largely underutilized waste stream and has the potential to become a bioethanol feedstock if processing is economically viable. This study aimed to characterize the chemical composition of coffee pulp with r...

In this study we investigated the technical feasibility of convert paper mill sludge into fuel ethanol. This involved the removal of mineral fillers by using either chemical pretreatment or mechanical fractionation to determine their effects on cellulose hydrolysis and fermentation to ethanol. In addition, we studied the effect of cationic polyelec...

In Jordan having deficit atmospheric precipitation, an increase in water demand occurs during summer months. Jordan can be regarded with a relatively high potential for wastewater recycling and reuse. The main purpose of this paper was to investigate the removal of total suspended solids (TSS) and chemical oxygen demand (COD) for olive mill wastewa...

he performance of a submerged membrane bioreactor (SMBR) system for grey water (GW) treatment was evaluated in terms of effluent quality and membrane fouling. The SMBR was operated for 42 days at constant transmembrane pressure (13 kPa) in six consecutive stages. A hollow fibre ultrafiltration membrane module (ZW-1) was used to treat real GW with t...

The performance of a submerged membrane bioreactor (SMBR) system for grey water (GW) treatment was evaluated in terms of effluent quality and membrane fouling. The SMBR was operated for 42 days at constant transmembrane pressure (13 kPa) in six consecutive stages. A hollow fibre ultrafiltration membrane module (ZW-1) was used to treat real GW with...

The performance of a submerged membrane bioreactor (SMBR) system for grey water (GW) treatment was evaluated in terms of effluent quality and membrane fouling. The SMBR was operated for 42 days at constant transmembrane pressure (13 kPa) in six consecutive stages. A hollow fibre ultrafiltration membrane module (ZW-1) was used to treat real GW with...

In this study we investigated the technical feasibility of convert paper mill sludge into fuel ethanol. This involved the removal of mineral fillers by using either chemical pretreatment or mechanical fractionation to determine their effects on cellulose hydrolysis and fermentation to ethanol.

The adsorptive and hydrodynamic characteristics of low density non-porous magnetic supports used for biocatalyst immobilization have been investigated. The magnetic particles consist of a sand core have been covered with a magnetite layer followed by a layer of nano size activated carbon or fly ash with the aid of epoxy resin.

The aim of the present work was to investigate experimentally the reduction of Chemical Oxygen Demand (COD) levels from baker’s yeast wastewater (BYW) using batch electrocoagulation (EC) treatment process. An electrocoagulation unit with six iron electrodes was designed to achieve this treatment task. The effect of several operational parameters in...

Biodegradation of olive mill wastewater (OMW) toxic constituents was investigated using thermophilic bacteria. Three types of thermophilic bacteria were isolated from olive mills solid waste (Jift) and tested their ability to detoxify OMW. These thermophiles, namely Bacillus polymaxa JT6, Bacillus Maceramns JT7 and Bacillus popilliae JT8, can grow...

In this study, the reduction of phenolic compounds and other organic pollutants from greenish black (GB) and dark brown (DB) olive mill wastewater (OMW) was investigated. Ultrasonic irradiation in combination with aerobic biodegradation was adopted as the treatment technique. Operational parameters such as the duration of ultrasonic irradiation, ul...

The isobaric vapor–liquid equilibrium (VLE) behaviors for binary system, ethyl acetate + ethyl benzene, and ethyl acetate + ethyl benzene + LiBr (at saturation) were studied at the local ambient pressure (707 ± 1 mmHg). Equilibrium still was used where both liquid and vapor were continuously circulated. The experimental results showed that salt-fre...

The present work studied experimentally the variations of some characteristics of the mixed liquor solution in wastewater treatment plants (WWTPs) under the effect of electrocoagulation (EC) technique. Unlike conventional methods, electrocoagulation was performed using cylindrical perforated iron electrodes to achieve a good distribution of the app...

The phase stability of DE and DBE blends at different component concentrations, as will as the effects of using DBE blends including ethanol of various proportions on a CI engine performance are experimentally investigated. The engine was operated with DBE blends having 5, 10, 15 and 20% ethanol with fixed 10% biodiesel on a volume basis, to solve...

The objective of the present study was to investigate experimentally the removal of total suspended solid (TSS) and chemical oxygen demand (COD) of wastewater from paper industries by electrocoagulation techniques solely, or with the aid of chemical flocculants. Electro-coagulation experiments were carried out using iron electrodes and either iron...

In paint industries, synthesis of alkyd resins and aqueous emulsions consumes high energy levels required for occurrence of endothermic chemical reactions. In attempt to reduce energy consumption, the present work investigated energy integration of the heating cycles of aqueous emulsion and alkyd resin production lines that operate independently. T...

The current study investigated numerically the two-dimensional (2D) incompressible flow and mass transfer in a lid-driven cavity of annular geometry accompanied by enzymatic surface-reactions. The lid-driven bioreactor had a square cross-section of (H × H) and a radius of curvature of r c. This flow configuration gives the opportunity to evaluate e...

This paper proposes the use of a combination of two treatment processes for the removal of organic pollutants from the olive oil mill wastewater (OMW). The two treatment processes are, a single coagulation stage followed by a single advanced oxidation, AOP, stage. For the AOPs, the following processes were used; UV, O3, O3/UV and H2O2/UV depending...

New measurements of the frictional pressure drop of air—water two-phase flow in a flexible corrugated U-tube have been carried out. Experiments were performed under the following conditions of two-phase parameters: mass flux of 300—800 kg/m2 s, gas quality of 1—60 per cent, and system pressure of 3—7 bar. The inner diameter of the U-tubes tested wa...

This study aims at applying ultrasound techniques with high frequency to treat wastewater. One application that was chosen here is to apply ultrasound wave on spent wastewater resulting from Jordanian oil shale retorting, which is known as retort water. The proposed process has shown an excellent ability on retort water treatment. At a fixed high u...

In the present study, olive mill wastewater (OMW) treatment is investigated experimentally in various stage processes of advanced oxidation with ozone (O3), photodegradation by UV radiation, and an aerobic biodegradation. The effects of these treatment processes on the removal of chemical oxygen demand (COD) of OMW are monitored. For both single-st...

Experiments of air water two-phase flow pressure drop in vertical internally wavy 90 degrees bend have been carried out. The tested bends are flexible and made of stainless steel with inner diameter of 50 mm and various curvature radiuses of 200, 300, 400 and 500 mm. The experiments were performed under the following conditions of two-phase paramet...

This article aims to apply the ultrasound technique in the field of clean technology to protect environment. The principle of sonochemistry is conducted here to degrade pesticides in simulated industrial wastewater resulted from a factory manufacturing pesticides namely diazinon. Diazinon pesticide selected in this study for degradation under high...

The properties of ternary mixtures of surfactant-oil-water based on the use of the single chain mean-field (SCMF) theory is presented. A new methodology is applied where the chains of surfactant and oil are thrown randomly onto a three-dimensional lattice of size L × L × L. We determine the critical micelle concentrations, density distribution and...

The two-dimensional momentum and mass transfer in an immobilized enzyme reactor was numerically investigated. The equations of motion and the mass-transport equation of a substrate, consumed at specified boundaries of the reactor, were solved by using fourth-order discretization schemes. A wall-driven cavity of square cross-section was selected to...

Fenton and ozone treatment was investigated at laboratory scale for the degradation of aqueous solutions of nitrobenzene (NB). Effects of reactants concentration (03, H2O2, and Fe(II)), temperature, and pH on NB degradation were monitored. Reaction kinetic of these processes was also assessed. A rapid reaction took place for Fenton process at highe...

Diatomite, an abundant inorganic material in Jordan, was treated with sulfuric acid and heat treated in order to improve its performance as an adsorbent. The acid treated diatomite (ATD) was used to adsorb methylene blue from aqueous solutions. The equilibrium data were fitted to different adsorption isotherms and the best fit was obtained using La...

A magnetically stabilized fluidized bed (MSFBs) utilizing a transverse magnetic field was used to retain cells from cell suspension. The magnetic field permits bed expansion without mixing of the magnetic particles. The bed porosity increased by 75% when the magnetic field intensity increases to 110 mT. The effect of the magnetic field, suspension...