Adsorption Phenomenon and its Application in Removal of Lead from Waste Water: A Review

Kaushal, Achla; Singh, SK

doi:10.15406/ijh.2017.01.00008

Cited by 28 publications

(14 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Adsorption isotherms are mathematical models used to indicate the relationship between the amount of the material adsorbed and concentration of the liquid at constant temperature (Kaushal and Singh 2017). The results of adsorption isotherms are generally calculated as a plot of the concentration of chemical substance adsorbed (mg/g) versus the residual concentration (mg/L).…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Adsorption of chromium ions from tannery effluents onto activated carbon prepared from rice husk and potato peel by H3PO4 activation

et al. 2021

View full text Add to dashboard Cite

Two biomass agricultural waste materials; rice husks (RH) and potato peels (PP) were used as precursors for preparation of activated carbons by chemical activation using phosphoric acid for adsorption of hexavalent chromium [Cr(VI)] from tannery effluents. The prepared rice husk (RH–AC) and potato peel activated carbon (PP–AC) were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray diffraction. Adsorption experiments were performed by varying pH, agitation speed, contact time, adsorbent dose and initial metal ion concentration. Freundlich, Langmuir and Temkin isotherms were used to analyze the equilibrium data obtained at different adsorption conditions. It was found that the adsorption isotherms were well fitted by the Freundlich equation and the adsorption process was found to follow pseudo-second-order rate kinetics. Adsorption results obtained show a maximum Cr(VI) uptake being attained at pH 2.0, with chromium removal efficiency of 99.88% and 99.52% for RH–AC and PP–AC, respectively. RH–AC and PP–AC are effective adsorbent for the removal of chromium(VI) ions from wastewater.

show abstract

Section: Adsorption Isothermsmentioning

confidence: 99%

Adsorption of chromium ions from tannery effluents onto activated carbon prepared from rice husk and potato peel by H3PO4 activation

et al. 2021

View full text Add to dashboard Cite

show abstract

“…It can be deduced that the extraction efficiency of Co 2+ gradually increases with concentration of the azo dyes before reaching the optimum %E. The increase in the % E with concentration of the ligand may be attributed to the presence of more coordination sites available for binding the metal ions [21]- [23].This was in agreement with the observations made by preview authors [22][9]. The results also showed that at ligand concentration higher than 0.01 M, the percentage removal efficiency of Co 2+ was nearly constant, and this is possibly as a result of the depletion of all Co 2+ ion that were initially present in the medium [7].…”

Section: Iii4 Effect Of Azo Dyes (Ligand) Concentration On the % E Removalmentioning

confidence: 99%

Synthesis and Application of Eco-Friendlyred Onion Skins Azo Dyes for the Removal of Cobalt from Aqueous Media

Manizabayo¹,

Niyomugabo²,

Chukwu³

2021

IJRIAS

View full text Add to dashboard Cite

The present study investigated the synthesis of low cost and environmental friendly red onion skins azo dyes derivatives and their application as ligands for the extraction of cobalt (II) ions from aqueous media. The effect of pH, agitation time, ligand concentration, and metal ion concentration on Co 2+ ions removal efficiency as well as the stoichiometric coefficients were examined. The study revealed that the azo dyes were effective in removing Co 2+ ion from aqueous solution. The highest removal efficiencies were obtained within the pH ranges 6-7. The results also showed that the % extraction (% E) of Co 2+ ions increased with agitation time and concentration of the ligand. The slope analysis carried out on the experimental data demonstrated that Co 2+ ions reacted with the ligands in 1:2 metals to ligand ratio.

show abstract

“…Among these processes it can be included ion-exchange, membrane filtration, photocatalysis, bioremediation, adsorption, nano materials. [6][7][8][9] In our opinion, in the water toxicity by more than one pollutant, it is indispensable to study their combined action since addition, suppression or synergism could be occurring. In order to mimic the natural environmental condition, the presence of soil in such studies can give more confident results.…”

Section: Effect Of the Soil/in Vivo Fish Toxicitymentioning

confidence: 99%

Effects of Pollutants and Role of the Soil in the Water Toxicity

Dantzger¹,

Aoyama²

2017

IJH

View full text Add to dashboard Cite

Adsorption Phenomenon and its Application in Removal of Lead from Waste Water: A Review

Cited by 28 publications

References 26 publications

Adsorption of chromium ions from tannery effluents onto activated carbon prepared from rice husk and potato peel by H3PO4 activation

Adsorption of chromium ions from tannery effluents onto activated carbon prepared from rice husk and potato peel by H3PO4 activation

Synthesis and Application of Eco-Friendlyred Onion Skins Azo Dyes for the Removal of Cobalt from Aqueous Media

Effects of Pollutants and Role of the Soil in the Water Toxicity

Contact Info

Product

Resources

About