Title: Journal of the Environmental Engineering Division-ASCE

Title: Journal of the Environmental Engineering Division-ASCE

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JCR Abbreviated Title:

ISSN: 90-3914

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: Impact Factor

? Rouse, J.V. (1976), Removal of heavy metals from industrial effluents. Journal of the Environmental Engineering Division-ASCE, 102 (5), 929-936.

? Crittenden, J.C. and Weber, Jr., W.J. (1978), Model for design of multicomponent adsorption systems. Journal of the Environmental Engineering Division-ASCE, 104 (6), 1175-1195.

Title: Journal of Environmental Engineering and Landscape Management

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Subject Categories:

: Impact Factor

? Hannachi, Y. (2011), Nickel biosorption by finely ground waste sludge. Journal of Environmental Engineering and Landscape Management, 19 (3), 208-214.

Full Text: 2011\J Env Eng Lan Man19, 208.pdf

Abstract: In this paper, removal of Ni (II) from aqueous solution by finely ground waste sludge (FGWS) was investigated. Waste sludge samples obtained from a varnishes and lacquers industry wastewater treatment plant was dried, ground and pre-treated with 1% H(2)O(2) to improve the biosorption capacity. Kinetics of nickel biosorption onto FGWS was investigated by using the FGWS samples with particle size of 62.2 mu m. The pseudo-first and -second order rate expressions were used to correlate the experimental data. The kinetic constants were determined for both models and the second order rate expression was found to be more suitable. Three different biosorption isotherms were used to correlate the equilibrium biosorption data and the isotherm constants were determined. The Langmuir isotherm was found to fit the experimental data better than the other tested isotherms. The biosorption capacity (q(m)) and saturation constant (K) for the Langmuir isotherm showed that finely ground waste sludge has the largest capacity and affinity for removal of Ni(II) compared to the other Activated sludges.

Keywords: Activated-Sludge, Aqueous Solution, Bacterial Extracellular Polymers, Biomass, Biosorption, Biosorption Capacity, Chromium(VI), Copper, Cu(II), Cultures, Equilibrium, Finely Ground Waste Sludge (Fgws), Heavy-Metal Removal, Isotherm, Isotherms, Kinetic, Kinetics, Langmuir, Langmuir Isotherm, Ni(II), Nickel, Nickel(II) Ions, Removal, Second Order Rate, Sludge, Sorption, Waste, Waste Sludge, Wastewater, Wastewater Treatment

Title: Journal of Environmental Engineering and Science

ISO Abbreviated Title: J. Environ. Eng. Sci.

JCR Abbreviated Title: J Environ Eng Sci

ISSN: 1496-2551

Issues/Year: 6

Language: Multi-Language

Journal Country/Territory: Canada

Publisher: Natl Research Council Canada-N R C Research Press

Publisher Address: Building M 55, Ottawa, ON K1A 0R6, Canada

Subject Categories:

Engineering, Environmental: Impact Factor 0.803, 18/35 (2006); Impact Factor 0.941, 31/42 (2009)

Environmental Sciences: Impact Factor 0.803, 99/144 (2006); Impact Factor 0.941, 139/181 (2009)

Meunier, N., Blais, J.F. and Tyagi, R.D. (2003), Selectivity of cococa shells for removal of metals from soil decontamination effluents. Journal of Environmental Engineering and Science, 2 (1), 1-8.

Full Text: J\J Env Eng Sci2, 1.pdf

Abstract: Washing using inorganic acids is a common method for treatment of metal-polluted soils. Metals solubilized during soil washing have to be removed from washing solutions (leachates). The purpose of this research was to evaluate the efficiency and the selectivity of cocoa shells to adsorb metals contained in acid leachates of soil decontamination. Shake flask experiments were done using 15 g/L of cocoa shells and a doped (addition of 100 and 300 mg metal/L) acid leachate (pH(i) = 2.4) using 1 or 10 metal salts. These tests have revealed that this natural sorbent is particularly efficient to remove lead and, to a lesser degree, copper from solution. A maximal lead concentration of 17 900 mg/kg, corresponding to 75% of lead removal, has been adsorbed on cocoa shells during tests using a soil leachate doped with 300 mg Pb/L. This research also showed that cocoa shell selectivity generally follows this order: Pb much greater than Cu much greater than Fe > Al > Cr much greater than Co > Zn > Mn > Cd > Ni. Kinetic studies over a 24-h period have indicated that the equilibrium of metals adsorption is almost reached in the first 2 h of contact. Moreover, metal uptake on cocoa shells is controlled by an ion-exchange mechanism involving magnesium and potassium release from the adsorbent. Finally, cocoa shells are a promising natural adsorbent for the treatment of metal-contaminated acid effluents and particularly for the removal of lead from these solutions.

Keywords: Adsorption, Metals, Lead, Cocoa Shells, Leachate, Soils, Heavy-Metals, Contaminated Soil, Industrial-Wastes, Toxic Metals, Extraction, Recovery, Biosorption, Remediation, Acid

Njoroge, B.N.K. and Mwamachi, S.G. (2004), Ammonia removal from an aqueous solution by the use of a natural zeolite. Journal of Environmental Engineering and Science, 3 (2), 147-154.

Full Text: J\J Env Eng Sci3, 147.pdf

Abstract: A series of batch experiments were conducted to ascertain the ability of a natural zeolite (a crystalline aluminosilicate) to remove ammonia from synthetic wastewater samples composed of ammonium hydroxide (NH₄OH). The reaction with ammonia was observed to be very rapid, with half the amount of ammonium ions being sorbed in the first minute in some instances. Estimated ammonia uptake was favoured by low sorbate concentration, small particle size of sorbent, high temperature, and an alkaline medium. The sorption kinetics studies strongly indicated that the sorption process was largely governed by intraparticle pore diffusion. The effect of temperature on equilibrium at 14 degreesC and at room temperature (25 degreesC) showed the sorption process was endothermic, the rate and extent of sorption increasing appreciably with temperature. The equilibrium data fitted the Langmuir sorption model, a possible indication of a monolayer coverage of ammonium ions on the surface of the particle. The Langmuir correlation of the equilibrium data suggested that ion exchange might have been the dominant sorption mechanism. The zeolite seemed to have some fairly good potential for ammonia removal with the sorption capacity being about 4 mmol (NH₄⁺) per 100 g of sorbent. However, this needs to be investigated further through flow-through conditions and in the presence of other ions as in real wastewater.

Keywords: Zeolite, Aluminosilicate, Sorbent, Ammonia Nitrogen, Sorption, Sorbate, Clinoptilolite, Sorption

Ben Tahar, F., Ben Cheikh, R. and Blais, J.F. (2004), Decoloration of yeast wastewater by adsorption on charcoal. Journal of Environmental Engineering and Science, 3 (4), 269-277.

Full Text: J\J Env Eng Sci3, 269.pdf

Abstract: The decolorization study of a yeast wastewater factory by adsorption on activated and raw charcoal showed that these adsorbents have great capacity to discolor and to adsorb the total organic matter (TOM), the chemical oxygen demand (COD), and the dissolved organic carbon (DOC). The solutions color characteristics have been followed by determining their dominant wavelengths issued from their correspondent trichromatic coefficients (X,Y,Z). The adsorbent size is an important parameter. The use of 30 g of charcoal sized 150-250 m, per liter of solution, leads to a total decolorization, and to a diminution of up to 50% of the treated solutions COD and DOC concentrations. To obtain the same efficiency, 130 g/L of 425- to 850-m sized charcoal are needed. The study of the kinetics of the discoloration shows that the adsorbent instantly reaches a saturated state with a saturation rate almost equivalent to the rate of its diffusion in the liquid. It shows also that the maximum amounts of the adsorption of the COD and the DOC can be modelled by the Langmuir adsorption isotherm, and that they are respectively equal to 231 and 213 mg/g for the nonactivated charcoal (150-250 m), and 103 mg/g for the activated charcoal (425-850 m) regarding the COD, and that the Freundlich adsorption model fit well the COD and DOC adsorption for the nonactivated charcoal.

Keywords: Decolorization, Charcoal, Adsorption, Yeast, Wastewater, Color Removal, Decolorization, Plant, Dyes

Zaggout, F.R. (2005), Kinetic removal of lead from water by decaying Tamrix leaves. Journal of Environmental Engineering and Science, 4 (4), 299-305.

Full Text: 2005\J Env Eng Sci4, 299.pdf

Abstract: Removal of lead ions from aqueous solutions by Tamrix gallica leaves was studied. The factors that affected this removal were investigated. These factors are metal ion concentration, tamrix leave concentration, pH, presence of competing ions, agitation, crushing, drying, presence of complexing agent, and leaf extract. Application of the Freundlich adsorption isotherm on the present results has been examined and the parameters of this isotherm have been calculated. The order of reaction between lead ions and Tamrix gallica leaves has been determined and a mechanism for this interaction has been suggested.

Keywords: Lead Removal, Tamrix Leaves, Adsorption, pH, Metal-Ions, Polluted Water, Gallica Leaves, Aluminum, Cadmium

? Hammy, F., Chartier, M., Mercier, G. and Blais, J.F. (2006), Air pollution control residues (APCR) decontamination of municipal waste incinerators by leaching in basic medium and peat moss adsorption. Journal of Environmental Engineering and Science, 5 (4), 335-348.

Full Text: J Env Eng Sci5, 335

Abstract: Air pollution control residues (APCR) from municipal waste incinerators are usually considered as hazardous wastes because of their high contents in easily soluble Pb and other toxic metal contaminants. The objective of this research was to compare various techniques using Pb adsorption on Sphagnum peat moss (MT) for the treatment of alkaline leachates produced during the decontamination of various types of APCR including used lime (CU), electrofilter ashes (CE), and boiler ashes (CC). Regeneration tests of saturated MT using hydrochloric and sulphuric acids have revealed that excessive acid consumption (> 250 kg acid/metric ton of treated APCR) are necessary for the elution of metals. However, the incineration of the saturated MT and its possible valorization represents an interesting way to explore for the management of the adsorbent. This method allows to reduce by a factor of 3 or 4 the mass of residues and increases in the same proportion the Pb content in the incinerated MT. Finally, the present study has highlighted that ion exchange on the anionic functional groups of MT would be one of the most important mechanisms implied in the Pb fixation on this natural sorbent during the treatment of very alkaline leachates (pH > 11) of APCR.

Keywords: Lead, Leaching, Incinerator, Air Pollution Control Residues (APCR), Removal, Peat, Adsorption, Toxicity Characteristic Leaching Procedure (TCLP), Nica-Donnan Model, Metal-Ion Binding, Fly-Ash, Heavy-Metals, Humic Substances, Solid-Wastes, Removal, Cadmium, Lead, Disposal

? Zaggout, F.R., Al-Subu, M.M. and El-Ghoti, T. (2006), Removal of cadmium(II) ions from aqueous solution by Tamrix gallica leaves. Journal of Environmental Engineering and Science, 5 (6), 509-515.

Full Text: J Env Eng Sci5, 509

Abstract: Removal of cadmium from aqueous solutions by Tamrix gallica leaves has been investigated. The effect of several factors on the removal has been studied, including metal ions concentration, Tamrix leaves concentration, pH, presence of competing ions, agitation, crushing, and drying. Removal of cadmium by Tamrix leaves was found to be dependant on pH and the maximum removal of cadmium by Tamrix leaves was found at pH 5. The cadmium removal by Tamrix leaves has been found to depend on both the concentration of leaves and the concentration of cadmium in solution. The presence of foreign ions along with cadmium ions in water reduce the removal of cadmium in the order Cu > Pb > Ni > Na > K. Applicability of the Freundlich adsorption isotherm has been examined and the parameters of this isotherm have been calculated. The order of reaction between cadmium ions and Tamrix gallica leaves with respect to cadmium has been found to be first order and a mechanism based on adsorption of cadmium on leaves has been suggested.

Keywords: Cadmium Removal, Water, Tamrix Leaves, Adsorption Isotherm, Polluted Water, Metal-Ions

? Kaur, S., Walia, T.P.S. and Mahajan, R.K. (2008), Comparative studies of zinc, cadmium, lead and copper on economically viable adsorbents. Journal of Environmental Engineering and Science, 7 (1), 83-90.

Abstract: Lead and cadmium are very important metals even at trace levels because many health hazards are associated with them. Whereas, zinc and copper are toxic only when these are present at higher concentrations. Their removal from the contaminated samples is of utmost importance. The technique of adsorption using various economically viable adsorbents such as bagasse, bottom ash, rice husk ash, sawdust, and used tea leaves has been applied for their removal from aqueous solutions. Various parameters such as contact time, adsorbent dose, and metal concentrations were studied, optimized and applied to the present study. The equilibrium data obtained were analyzed in the light of Freundlich and Langmuir isotherms. Results revealed that rice husk ash is most efficient in removing lead and copper from aqueous solutions in comparison to the other adsorbents. Whereas in the case of cadmium, bottom ash was found to be of maximum efficiency. Bagasse was of maximum efficiency in removing zinc.

Keywords: Adsorbent, Adsorbents, Adsorption, Cadmium, Copper, Equilibrium, Fly-Ash, Freundlich, Heavy-Metal Removal, Isotherms, Langmuir, Lead, Light, Sorbents, Waste, Water, Zinc

? Ncibi, M.C., Mahjoub, B. and Seffen, M. (2008), Adsorption of metal dye by the fibres of Posidonia oceanica. Journal of Environmental Engineering and Science, 7 (6), 645-650.

Abstract: The leaf sheath fibres of the Mediterranean seagrass Posidonia oceanica (L.) were used as a renewable and low cost biological adsorbent for the removal of textile metal complex dye from aqueous solutions. Batch experiments were carried out for sorption kinetics and isotherms. Experimental operating variables studied were pH, contact time at different initial dye concentrations, and biomass dosage. Maximum color removal was observed at pH 2. Adsorption capacity was enhanced by increasing both initial dye concentration and biomass quantity up to 20 g/L. The sorption kinetic data were found to follow the pseudo-second-order equations, thereby predicting a chimisorption process. Besides, the equilibrium data were modelled using Langmuir, Freundlich, Temkin, and Redlich-Peterson equations. Based on several error calculation methods, equilibrium data were well represented by both Redlich-Peterson and Langmuir isotherm models, suggesting a monolayer coverage of dye molecules onto the marine biomass surface and adsorption active sites of quite similar affinities toward the tested textile pollutant.

Keywords: Adsorbent, Adsorption, Adsorption Capacity, Aqueous Solutions, Aqueous-Solutions, Biological, Biomass, Biosorption, Calculation, Capacity, Cellulose, Color Removal, Concentration, Contact, Cost, Coverage, Data, Dye, Effluent, Equilibrium, Error, Experiments, Freundlich, Isotherm, Isotherm Models, Isotherms, Kinetic, Kinetics, Kinetics, Kinetics and Isotherms, Langmuir, Langmuir Isotherm, Low Cost, Mediterranean, Metal, Metal Complex Dye, Methods, Modelling, Models, Monolayer, NOV, Orange Peel, pH, Posidonia, Posidonia Oceanica, Process, Pseudo Second Order, Pseudo-Second-Order, Redlich-Peterson, Removal, Sawdust, Solutions, Sorption, Sorption Kinetics, Sorption Kinetics