Removal of some metal ions by activated carbon prepared from Phaseolus aureus hulls

Rao, M. Madhava; Ramana, D.K. Venkata; Seshaiah, K.; Wang, M.C.; Chien, Shu-Mei

doi:10.1016/j.jhazmat.2008.12.002

Cited by 278 publications

(72 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The data obtained from Lagergren equation for the adsorption of the metals in terms of initial concentration of the metal solutions with the adsorbent CMAC. The linear plot obtained shows the applicability of Lagergren rate equation for the adsorption of the metal ions used in this study and suggested the formation of monolayer of metal ions onto the surface of the adsorbent (Madhava Rao et al 2009). The rate constants K a are calculated from the slope of the plots of log(q e − q) vs t. The values of correlation coefficient (r 2 ) obtained show good correlation.…”

Section: Lagergren Rate Equationsupporting

confidence: 57%

Kinetic study on adsorption of Cr(VI), Ni(II), Cd(II) and Pb(II) ions from aqueous solutions using activated carbon prepared from Cucumis melo peel

Manjuladevi¹,

Anitha²,

Manonmani³

2018

Appl Water Sci

120

View full text Add to dashboard Cite

The adsorption of Cr(VI), Ni(II), Cd(II) and Pb(II), ions from aqueous solutions by Cucumis melo peel-activated carbon was investigated under laboratory conditions to assess its potential in removing metal ions. The adsorption behavior of metal ions onto CMAC was analyzed with Elovich, intra-particle diffusion rate equations and pseudo-first-order model. The rate constant of Elovich and intra-particle diffusion on CMAC increased in the sequence of Cr(VI) > Ni(II) > Cd(II) > Pb(II). According to the regression coefficients, it was observed that the kinetic adsorption data can fit better by the pseudo-first-order model compared to the second-order Lagergren's model with R 2 > 0.957. The maximum adsorption of metal ions onto the CMAC was found to be 97.95% for Chromium(VI), 98.78% for Ni(II), 98.55% for Pb(II) and 97.96% for Cd(II) at CMAC dose of 250 mg. The adsorption capacities followed the sequence Ni(II) ≈ Pb(II) > Cr(VI) ≈ Cd(II) and Ni(II) > Pb(II) > Cd(II) > Cr(VI). The optimum adsorption conditions selected were adsorbent dosage of 250 mg, pH of 3.0 for Cr(VI) and 6.0 for Ni(II), Cd(II) and Pb(II), adsorption concentration of 250 mg/L and contact time of 180.

show abstract

Section: Lagergren Rate Equationsupporting

confidence: 57%

Kinetic study on adsorption of Cr(VI), Ni(II), Cd(II) and Pb(II) ions from aqueous solutions using activated carbon prepared from Cucumis melo peel

Manjuladevi¹,

Anitha²,

Manonmani³

2018

Appl Water Sci

120

View full text Add to dashboard Cite

show abstract

“…The results confirmed that all of the not degraded CR dye was successfully retained, which is the primary cause of the different membrane fouling behaviour. This is due to the amount of dye deposited/adsorbed per unit of membrane surface area, which might be proportional to the percentage of flux decline [28]. Therefore, the maximum membrane flux decline (64 ± 1.0%) during the nanofiltration in the absence of photocatalyst is primarily due to the deposited of 100% of 20 mg L À1 dyes on the membrane surface.…”

Section: Tablementioning

confidence: 99%

Effect of various zinc oxide nanoparticles in membrane photocatalytic reactor for Congo red dye treatment

Hairom

Mohammad

Kadhum

2014

Separation and Purification Technology

View full text Add to dashboard Cite

“…The majority of metal ions were removed in the first 30 min. The behavior suggests that at the initial stage adsorption takes place rapidly on the external surface of the adsorbent (15). It has also been noticed that equilibrium is established in les time for higher adsorbent doses.…”

Section: Process Parametersmentioning

confidence: 87%

Removal of chromium from water using pea waste – a green approach

Anwar

Shafique

Waheed-uz-Zaman

et al. 2010

Green Chemistry Letters and Reviews

View full text Add to dashboard Cite

Agro-waste materials have carboxylic and phenolic groups that play the main role in metal adsorption. The advantages of these materials include easy availability, low cost, and reasonable metal removal capacity. One of the materials (usually considered as waste) is pea waste (pods). Present work comprises adsorption of chromium from aqueous solution using powder of pods of garden peas (Pisum sativum) in batch. Important parameters like adsorbent dose, pH, contact time, and agitation speed were studied. Adsorption equilibrium was explained by Langmuir, Freundlich, and Temkin isotherms. Maximum chromium uptake (q m ) was 3.56 mg/g of adsorbent.Heat of adsorption, as evaluated by Temkin isotherm was 1.96 kJ/mol. It is proposed that pea pods can be an effective and environmentally benign (green) adsorbents for removal of chromium from industrial effluents and waste waters.

show abstract

Removal of some metal ions by activated carbon prepared from Phaseolus aureus hulls

Cited by 278 publications

References 41 publications

Kinetic study on adsorption of Cr(VI), Ni(II), Cd(II) and Pb(II) ions from aqueous solutions using activated carbon prepared from Cucumis melo peel

Kinetic study on adsorption of Cr(VI), Ni(II), Cd(II) and Pb(II) ions from aqueous solutions using activated carbon prepared from Cucumis melo peel

Effect of various zinc oxide nanoparticles in membrane photocatalytic reactor for Congo red dye treatment

Removal of chromium from water using pea waste – a green approach

Contact Info

Product

Resources

About