Nickel removal from electroplating waste water using stand-alone and electrically assisted ion exchange processes

Ismail, Ibrahim; Soliman, Ahmed A.; Abdelmonem, Nabil; Ahmed, H. S.; Sorour, Mohamed H.

doi:10.1007/s13762-012-0158-z

Cited by 16 publications

(7 citation statements)

References 34 publications

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“…The Electro coagulation process involves several chemical reactions and physicochemical phenomena, which result in decomposition. Usually there are three steps that occur in sequential ways, and they are [8]:…”

Section: The Theory Of Electro-coagulationmentioning

confidence: 99%

“…The removal values were (93.5%, 98.5%, 97.5%, 99.55%) at (4, 6, 7, 8) pH, respectively. The highest removal was obtained at pH parameter equal to 8, at 120 minutes, and the reason is that the aluminum electrode dissolves in the solution when the electric current passes, forming aluminum ions in the solution, forming several compositions of aluminum compounds -hydroxyl at pH value range (4)(5)(6)(7)(8). The type of compound formed depends on the pH value, which helps to remove nickel ions by the method of electro-coagulation as mentioned in previous works [11].…”

Section: Effect Of Acidity Function (Ph)mentioning

confidence: 99%

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Using Photovoltaic to Remove Heavy Metals from Industrial Water

Ali¹,

Alwan²,

Abdullah³

et al. 2021

IJOIR

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Heavy metals pollution has become a more serious environmental problem in the last several decades as a result of releasing toxic materials into the environment. The aim of this study is to develop an ecological method for the removal of Ni2+ ions from industrial wastewater by an electro coagulation method using aluminum plates and solar cell as a source of D.C current. In this study, different conditions of pH of 4, 6, 7, and 8, current densities of 0.5, 1.0, and 1.5 mA/cm2, and nickel ion concentrations of 200, 300, and 500 ppm were investigated during a period of time of 120 minutes to remove nickel ions prepared waste water by electro coagulation. The total removal of nickel ions was (97.5- 99.5%), (97- 99%), and (96.67-98.8%) for pH (4-8), current density (0.5-1.5 mA/cm2) and nickel ions concentration (200-500 ppm), respectively. The results show that the optimum condition of electro coagulation process can be obtained at pH = 8 and current density 1.5 mA/cm2 when 120 minutes were elapsed.

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Section: The Theory Of Electro-coagulationmentioning

confidence: 99%

Section: Effect Of Acidity Function (Ph)mentioning

confidence: 99%

Using Photovoltaic to Remove Heavy Metals from Industrial Water

Ali¹,

Alwan²,

Abdullah³

et al. 2021

IJOIR

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“…For instance, the majority of Ni plating industries utilizes sulfuric acid solutions to perform acid pickling for surface activation [11,15]. Alternately, Ca is used in electroless Ni plating to precipitate the phosphite anion formed from the reaction of the hypophosphite reducing agent and NiSO4 [16].…”

Section: Introductionmentioning

confidence: 99%

Selective and enhanced nickel adsorption from sulfate- and calcium-rich solutions using chitosan

Nicomel

Otero-González

Folens

et al. 2021

Separation and Purification Technology

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Highlights• Chitosan effectively adsorbed Ni from a real Ni/Ca/SO4 2bearing leachate • Sulfate had a positive effect on Ni adsorption while Ca did not have any effect• Formation of NiSO4 0 species contributed to the enhanced Ni adsorption onto chitosan • Chitosan has a Ni qmax of 1.49 mmol/g even with 500 mM SO4 2and 10 mM Ca present • Chitosan was selective for Ni over Ca as validated in a column setup ABSTRACT Nickel (Ni) is an economically important metal characterized by its mechanical strength and anticorrosion properties. With the increasing industrial demand for Ni and the depleting accessible Ni primary ores, sustainable technologies are required for the recovery of this metal from alternative resources. In this study, adsorption using chitosan was investigated as a sustainable technique to recover Ni from sulfate (SO4 2-) and calcium (Ca) rich secondary resources. The effects of pH, contact time, and the presence of SO4 2and Ca on Ni adsorption were investigated in batch experiments. Chemical speciation modeling was performed to analyze how the predominant Ni species present under different conditions may affect the efficiency of the adsorption process. The comparison of chitosan's maximum Ni adsorption capacities in the absence (1.00 mmol/g) and presence (1.49 mmol/g) of 500 mM SO4 2and 10 mM Ca indicated the positive effect of these ions on Ni adsorption. The predominance of the neutrally charged NiSO4 0 species in Ni/SO4 2system has contributed to the enhanced Ni adsorption on chitosan as verified by X-ray photoelectron spectroscopy (XPS) analysis.However, kinetic studies confirmed that the Ni adsorption rate decreased by 4.5 times when SO4 2was present. The subsequent continuous Ni adsorption from a real SO4 2--rich leachate in a column setup revealed that chitosan is selective for Ni over Ca and Cr with selectivity quotients of 9.6 (KNi/Ca) and 3.0 (KNi/Cr). Overall, this study indicated that Ni complexation with SO4 2enhances the Ni adsorption capacity of chitosan, but slows down the adsorption process.

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“…Pb heads the list of environmental threats because, even at extremely low concentrations, it has been shown to cause brain damage in children [5]. A number of techniques have been used to remove the metal ions from wastewater effluents; including chemical precipitation [6], ion exchange process [7][8][9][10][11][12][13][14][15][16][17], electrolytic methods [18][19][20], adsorption onto activated carbon [21,22], low cost adsorbents such as kaolin, bentonite, blast furnace slag and fly ash [23 ], ion imprinted polymer (IIP) [24][25][26], organic-based ligand precipitation [26], membrane and reverse osmosis processes [28]. The industrial utilization of these methods has been found to be limited, because of the high capital and operating costs and/or the ineffectiveness in meeting stringent effluent standards.…”

Section: Introductionmentioning

confidence: 99%

Removal of Lead from Industrial Wastewater Using Flow-by-Porous Electrode

Abdel-Salam¹,

Ismail²,

Soliman³

et al. 2014

Port. Electrochim. Acta

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Lead present in several industrial wastes has deleterious effects on the quality of water. Cathodic deposition has been considered as one of the suitable means for lead removal. Experiments were carried out using a lab-scale electrochemical cell incorporating flowby porous graphite electrodes at steady state conditions. The effects of flow rate, current density, lead influent concentration and pH, on lead removal efficiency, current efficiency, lead removal rates, and cell potential, were investigated. It was found that the maximum removal efficiency (97.75%) was obtained at flow rate (100 mL/min), for initial concentration (40 mg/L), with a residual concentration (0.9 mg/L) and maximum current efficiency of (60.7%). In addition, the recovery of lead from wastewater was investigated.

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Nickel removal from electroplating waste water using stand-alone and electrically assisted ion exchange processes

Cited by 16 publications

References 34 publications

Using Photovoltaic to Remove Heavy Metals from Industrial Water

Using Photovoltaic to Remove Heavy Metals from Industrial Water

Selective and enhanced nickel adsorption from sulfate- and calcium-rich solutions using chitosan

Removal of Lead from Industrial Wastewater Using Flow-by-Porous Electrode

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