Removal of copper from aqueous solution using newspaper pulp as an adsorbent

Chakravarty, Sanchita; Pimple, S. Y.; Chaturvedi, Hema T.; Singh, Snigdha; Gupta, Kalyan Kali Sen

doi:10.1016/j.jhazmat.2008.02.030

Cited by 79 publications

(40 citation statements)

References 30 publications

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“…R L is a positive number whose magnitude determines the feasibility of the biosorption process. As the R L values lie between 0 and 1, the biosorption process is favorable [2,13]. Further, the R L values for this study at all temperatures studied are between 0.5145 and 0.3311; therefore, the adsorption is spontaneous.…”

Section: Biosorption Isothermsmentioning

confidence: 60%

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Influence of Temperature on Equilibrium, Kinetic and Thermodynamic Parameters of Biosorption of Cr(VI) onto Fish Scales as Suitable Biosorbent

Kondapalli¹,

Mohanty²

2011

JWARP

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In this work the potential of fish scales as a suitable biosorbent for removal of Cr(VI) ions from aqueous solutions was investigated at various temperatures. The influence of temperature on equilibrium, kinetics as well as thermodynamic parameters was investigated. Various isotherm models such as Langmuir, Freundlich, R -P, D -R, Temkin and Halsey were used for the mathematical description of the biosorption of Cr(VI) ions onto fish scales. It was observed that Freundlich model exhibited the best fit to experimental data.Amongst the various kinetic models tested, the pseudo-first-order kinetic model represented the best correlation for the biosorption of Cr(VI) onto fish scales at various temperatures. In addition, various thermodynamic parameters such as ∆G o , ∆H o and ∆S o were also determined. The biosorption of Cr(VI) was found to be a spontaneous and endothermic process.

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Section: Biosorption Isothermsmentioning

confidence: 60%

“…The adsorption capacity increases with increase in solution temperature. This indicates that the adsorption of Cr(VI) on fish scales is an endothermic process [13]. …”

Section: Effect Of Initial Cr(vi) Concentrationmentioning

confidence: 94%

Influence of Temperature on Equilibrium, Kinetic and Thermodynamic Parameters of Biosorption of Cr(VI) onto Fish Scales as Suitable Biosorbent

Kondapalli¹,

Mohanty²

2011

JWARP

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“…The adsorption process as a function of R L may be described as (Chakravarty et al 2008) if R L [ 1 unfavorable, R L = 1 linear condition, 0 \ R L \ 1 favorable condition, R L = 0 irreversible condition. R L lies between 0 and 1 which is 0.429 indicates the favorable adsorption of Cd(II) ions.…”

Section: Equilibrium Modelingmentioning

confidence: 99%

Application of dried plant biomass as novel low-cost adsorbent for removal of cadmium from aqueous solution

Dubey¹,

Mishra²,

Singhal³

2013

Int. J. Environ. Sci. Technol.

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Heavy metals are a threat to human health and ecosystem. These days, great deal of attention is being given to green technologies for purification of water contaminated with heavy metal ions. Biosorption is one among such emerging technologies, which utilizes naturally occurring waste materials to sequester heavy metals from wastewater. Cadmium has hazardous impact on living beings; therefore, its removal through green and economical process is an important task. The aim of the present study was to utilize the locally available Portulaca oleracea plant biomass as an adsorbent for cadmium removal from aqueous solution. The biomass was obtained after drying and grinding the portulaca leaves and stem. No chemical treatment was done on the adsorbent so that it remained green in a true sense. Batch experiments were performed at room temperature. The critical parameters studied were effects of pH, contact time, initial metal ion concentration and adsorbent dose on the adsorption of cadmium. The maximum adsorption was found to be 72 %. The kinetic data were found to best fit the pseudo-secondorder equation. High adsorption rates were obtained in the initial 45 min, and adsorption equilibrium was then gradually achieved in about 100 min. Adsorption increased with increase in pH for a range 2 and 6. The equilibrium adsorption results closely followed both the Langmuir and Freundlich isotherms. The values of constants were calculated from isotherms. Results indicated that portulaca plant biomass could be developed as a potential material to be used in green water treatment devices for removal of metal ions.

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“…Exposure to heavy metals can cause cancer in humans. For example Copper (Cu), if humans consumed continuously will cause irritation, itching, skin diseases, cancer, liver, kidneys and lungs [2].…”

Section: Introductionmentioning

confidence: 99%

“…As research conducted by Chakravarty et al [4] used the newspaper that has been modified as adsorbent, capable of reducing the metal content of Zn 9.20 mg / g with initial concentration of Zinc 10.31 mg / lt. Then Chakravarty et al [2] conducted a study with an adsorbent newspaper to absorb Cu (II), obtained a maximum loading capacity of 30 mg / g with initial concentration of Cu (II) 20 mg / l. Dehghani et al [5] using old newspapers that have been modified to absorb chromium of 59.88 mg / g (64%) with a dose of adsorbent 3 g / l and a contact time of 60 minutes. Marshall [6] enhanced the adsorption capacity of soybean hulls for copper uptake by employing base treatment before modification with citric acid (CA).…”

Section: Introductionmentioning

confidence: 99%

Reuse of Newspaper As An Adsorbent For Cu (II) Removal By Citric Acid Modification

2018

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Abstract. High Consumption of paper, bring the impact of the waste paper itself. And the utilization of the paper is limited to recycled products and crafts, whereas paper such as newspaper still contains cellulose that can be potential to be used as a heavy metal adsorbent. In this study, newspaper was dissolved in sodium bicarbonate to reduce various impurities and then was reacted with citric acid (CA). The modified adsorbent was characterized by FTIR and was tested for adsorb Cu(II) in artificial solution. After adsorption process, the solution was filtered and analysed using Atomic Absorption Spectrophotometer (AAS). The adsorption experimental data was fitted to Langmuir, Freundlich, Tempkin, and Dubinin-Radushkevich for equilibrium model and was fitted to pseudo first order reaction and pseudo second order reaction for kinetic studies. The result showed that CA-modification newspaper able to remove heavy metals Cu(II) in solution.

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Removal of copper from aqueous solution using newspaper pulp as an adsorbent

Cited by 79 publications

References 30 publications

Influence of Temperature on Equilibrium, Kinetic and Thermodynamic Parameters of Biosorption of Cr(VI) onto Fish Scales as Suitable Biosorbent

Influence of Temperature on Equilibrium, Kinetic and Thermodynamic Parameters of Biosorption of Cr(VI) onto Fish Scales as Suitable Biosorbent

Application of dried plant biomass as novel low-cost adsorbent for removal of cadmium from aqueous solution

Reuse of Newspaper As An Adsorbent For Cu (II) Removal By Citric Acid Modification

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