Removal of Nickel Ions from Acid Mine Drainage by Ion Exchange

Desalination and Water Treatment, 2016

The capacity of synthesized hybrid ion exchanger for removal of rhodamine B dye and Pb +2 ions from aqueous solution. The effect of different reaction conditions such as sample dosage, pH, ionic strength, contact time and concentration on removal of rhodamine B dye and lead ions were studied. Experimental results of pH and ionic strength showed that hydrophobic-hydrophobic interactions might be the dominant force of attraction for the rhodamine B and lead ions onto synthesized hybrid exchanger system. Adsorption equilibrium isotherms were analyzed by Langmuir, Freundlich, Dubinin-Radushkevich, Tempkin and Redlich-Peterson and Sips models. Langmuir model was found to show the best fit for experimental data and the maximum adsorption capacity was found to be 82.3 and 182.7 mg g-1 for lead ions and 76.4 and 156.8 mg g-1 for rhodamine B at 20 and 50 o C, respectively. The experimental kinetic of the data were analyzed using pseudo-first-order, pseudo-second-order and Weber-Morris intra-particle kinetic models and the results showed that pseudo-second-order kinetic model described the ion exchange kinetics accurately for rhodamine B and lead ions. Thermodynamic activation parameters such as ΔG*, ΔS* and ΔH* were also calculated.

2010

This paper discusses the methodology used to determine the optimal ion-exchange column size to process all separate batches of feeds from acid mine drainage wastewater. The optimal design ensures the best utilization of resin material and therefore results in a minimum amount of spent resins. Ion exchanger materials have been studied for removing heavy metals from a metal bearing wastes. For the current treatment, a facility has been designed for the removal of heavy metals from the acid mine drainage (AMD) waste by the ion-exchange technology.

2002

A method for the removal of nickel from waste water by adsorption process on ion exchange resin was studied. The percentage removal of nickel depends upon the contact time, pH and dose of adsorbent. Adsorption of nickel on ion exchange resins obeys Freundlich adsorption isotherm. The applicability of Lagergren kinetic model has also been investigated. In order to understand the

ejeafche.uvigo.es

Acid mine drainage (AMD), characterized by low pH and high concentrations of sulfate and heavy metals, is an important and widespread environmental problem related to the mining industry. Active treatments have received much attention lately as promising method for AMD treatment. They offer advantages such as high metal removal at low pH, stable sludge, and recovery of metals. Ion Exchange is the desired mechanism of contaminant removal; however, many mechanisms including adsorption reverse osmosis of metal occur in active treatments. The efficiency of active treatment is high. The most important component is the selection of resins and operating parameters. The performance of field ion exchangers can also be limited by AMD load and metal toxicity. Several studies conducted to find the bestsuited resin are reviewed. Moreover, critical parameters for design and long-term operation are discussed. Additional work needs to be done to properly assess the long-term efficiency of Ion exchanger and the metal removal mechanisms.

Australian Journal of basic and applied sciences, 2013

This paper presents the result of nickel removal from electroless plating industry wastewater using integrated chemical precipitation and ion exchange treatment. The performance efficiencies of Chitosan, FeCl 3 , polyacrylamide (PAA) and WPC6001 organic commercial coagulant for the removal nickel, Chemical Oxygen Demand (COD), total suspended solid (TSS) and turbidity were investigated using jar test. The supernatant from coagulation process was then treated in a two column ion exchanger using Strong Acid Cation Resin (Purolite D 5041) and Chelating Resin (Purolite D 5047). Polyacrylamide gave the best performance with the percentage removal as nickel, COD, TSS and turbidity as 96.6%, 47.2%, 99.6% and 99.6% respectively while chelating resin with percentage nickel of 99.2% and 99.55% in the 1 st column and 2 nd column respectively was found to be best resin. The nickel contents in the effluents of the first column and second column ion exchange column were in the range of 0.023 -0.043 mg/L and 0.013 -0.032 mg/L respectively. These results meet the Malaysia Environmental Quality Standard A for industrial effluent, which is 0.2 mg/L.

Selected Scientific Papers - Journal of Civil Engineering, 2018

Acid Mine Drainage (AMD) is the most common pollution related to mining. It consists of an aqueous solution containing high metals and sulphate concentration, which impact surface and groundwater and lead to serious environmental problems. Low pH and high concentrations of heavy metals and sulphates are limiting for many various treatment technologies in these acidic waters. Ion - exchange is a very powerful technology where one or more undesirable contaminants are removed from water by exchange with another non-objectionable or less objectionable substance. Many of materials for the ion - exchange treatment is available in a variety forms and have widely differing chemical and physical properties. The paper deals with study of ion - exchange process under static and dynamic conditions for sulphate removal from acidic waters using ion - exchange resin with the aim to apply the results for treatment of acid mine drainage. Two types of experiments were performed under static and dynam...

Reviews in Chemical Engineering, 2020

Recently, removal of nickel ions has been gaining a lot of attention because of the negative impact of nickel ions on the environment. The aim of this review paper is to organize the scattered available information on removal of nickel ions from aqueous solutions through the adsorption process. Survey on investigated materials suggests that composite- and polymer-based adsorbents have the most effective capability for nickel adsorption. The composite material class, i.e. CaCO3-maltose, followed by biopolymer-based material showed the highest Ni(II) adsorption capacity of 769.23 and 500 mg/g, respectively. The importance of treatment parameters (i.e. pH, temperature, contact time, and metal ion concentration) is discussed, together with their effect on the underlying physicochemical phenomena, giving particular attention to the adsorption/desorption mechanism. It was ascertained that adsorption of nickel ions is pH dependent and the optimal pH range for adsorption of Ni(II) ions was ...

Journal of Hazardous Materials, 2009

Ion-exchange is an alternative process for uptake of heavy metals from aqueous solutions. In the present study, the sorption of nickel(II) ions from aqueous solution was investigated by using Lewatit MonoPlus SP 112 (strongly acidic, macroporous cation-exchange resin) in a batch adsorption system as a function of pH (2.0-8.0), initial nickel concentration (50-200 mg/L), resin dosage (0.5-2.0 g/L), contact time (0.5-3 h), and temperatures (298-318 K). The data were analyzed on the basis of Lagergren pseudo-first order, pseudo-second order (Types 1-5), Elovich and external, Weber-Morris intraparticle, pore-surface mass diffusion models. The experimental data showed that the maximum pH for efficient sorption of nickel(II) was 6.0. At the optimal conditions, nickel(II) ions sorption on the resin was decreased when the initial metal concentration increased. The results indicated that the resin dosage strongly affected the amount of nickel(II) ions removed from aqueous solution. The adsorption process was very fast due to 80% of nickel(II) sorption was occurred within 30 min and equilibrium was reached at about 90 min. Freundlich and Langmuir adsorption isotherm models were used for sorption equilibrium data and the maximum adsorption capacity (171 mg/g) of Lewatit MonoPlus SP 112 was obtained from Langmuir isotherm. The thermodynamic parameters (G • , free energy change; S • , enthalpy change; and H • , entropy change) for sorption of nickel(II) ions were evaluated. The rise in temperature caused a partly increase in the value of the equilibrium constant (K c) for the sorption of nickel(II) ions. Moreover, column flow adsorption study was also studied. Breakthrough curves were obtained from column flow studies by using both synthetic solution and rinsing bath water of filter industry. The column regeneration was carried out for two sorption-desorption cycles. The eluant used for regeneration of the cation-exchange resin was 7% (w/w) HCl. The experimental results demonstrated that Lewatit MonoPlus SP 112 cation-exchange resin could be used effectively for the removal of nickel(II) ions from aqueous medium.