Adsorbents for the removal of arsenic, cadmium, and lead from contaminated waters

Yadanaparthi, Sai Krishna Reddy; Graybill, David D.; Wandruszka, Ray von

doi:10.1016/j.jhazmat.2009.05.103

Cited by 255 publications

(103 citation statements)

References 150 publications

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“…The comparison of sorption capacity of Fe-leonardite with other adsorbents reported in the literature (Mohan and Pittman 2007;Yadanaparthi et al 2009) is complicated, mainly due to the variability of conditions under which sorption experiments were conducted, such as the range of initial concentrations the maximum capacity (qmax) obtained from Langmuir model varies over a wide range (Mohan and Pittman 2007). A comparison of qmax described in studies with similar arsenic initial concentrations than the used in the present work is summarized in Table 2.…”

Section: Adsorption Isothermsmentioning

confidence: 98%

Exploring Arsenic Adsorption at low Concentration onto Modified Leonardite

Solé-Sardans

Gamisans

Dorado

et al. 2016

Water Air Soil Pollut

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Section: Adsorption Isothermsmentioning

confidence: 98%

Exploring Arsenic Adsorption at low Concentration onto Modified Leonardite

Solé-Sardans

Gamisans

Dorado

et al. 2016

Water Air Soil Pollut

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“…In the process of adsorption, the gas liquid solute gathers on the adsorbent surface which forms a molecular film of the adsorbent. For the removal of metal ions and other recalcitrant compound from the industrial effluents, activated charcoal, synthetic resins, agricultural waste and industrial waste used as adsorbent followed by physical, biological, and chemical methods (Yadanaparthi et al, 2009, Kwon et al, 2010and Gottipati et al, 2012. Activated carbon: Activated carbon is the commonly preferred adsorbent; its widespread use is restricted due to high cost.…”

Section: Low Cost Adsorbants and Their Applicationsmentioning

confidence: 99%

Treatment of pulp and paper mill effluent using low cost adsorbents: An overview

Kakkar

Malik

Gupta

2018

JANS

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In the present review, the suitability of adsorption process using low cost adsorbent for the treatment of pulp and paper mill effluent has been discussed. It is clear that adsorption processes are appropriate for the removal of recalcitrant compounds such as surfactants and pesticides, among others biodegradable or non-biodegradable compound present in pulp and paper mills effluents. The importance of the adsorption is to improvement of the removal of various physico-chemical (biological oxygen demand (BOD), chemical oxygen demand (COD), colour, suspended solids, lignin), heavy metals (Cu, Cr, Fe, Zn, Ni and Mn etc) organochlorine compounds, all recalcitrant pollutant, reduce toxicity, enhance colour removal by using different cost effective adsorbents. The effective use of the different adsorbents developed from different adsorbent media such as activated carbon, agriculture by product and industrial wastes and sludge as adsorbents for the removal of different pollutants from the various processes and operations of pulp and paper mill as potential alternatives to different treatment process and received widespread attention. Adsorption necessity is a novel treatment option to improve the efficiency of removal within the discharge limits of wastewaters into the receiving bodies without causing any damage of the environment. However, still there is a need to find out the practical usefulness of such low cost adsorbent at industrial scale with the special reference to metals.

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“…The adsorption ability of iron oxides has been exploited to remove contaminants such as arsenic, chromium, cadmium, lead and organic dyes from wastewater. 1, [9][10][11] The magnetic property of magnetite has also been exploited in the removal of contaminants from processed water, where the adsorbent could be readily magnetically recovered. 1 Among the ways to manifest reliably various functions of iron oxides, the biomimetic mineralization approach features precisely controllable, sustainable and low-cost and environmentally benign to access multi-functional materials with highly ordered structures in various applications.…”

Section: Introductionmentioning

confidence: 99%

Carbon-decorated iron oxide hollow granules formed using a silk fibrous template: lithium-oxygen battery and wastewater treatment applications

et al. 2017

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Hierarchical nanoarchitecture and phase control of iron oxides are important approaches for achieving multi-functionality for various applications. Herein, rice-grain-shaped iron oxide hollow structures were synthesized via a hydrothermal process using a silk fibrous template, and the crystalline phases (α-Fe 2 O 3 , Fe 3 O 4 ) were controlled by annealing. These structures were applied in a lithium-oxygen battery cathode and as adsorbents for wastewater treatment. The porosity, hollow interior, surface area, surface chemical composition and efficient carbon matrix of the C/Fe 3 O 4 hollow granules obtained by annealing under Ar atmosphere were favorable for enhancing the oxygen reduction and evolution kinetics when applied as an electrocatalyst for lithium-oxygen batteries, and also led to superior adsorption of organic pollutants (Rhodamine B) from an aqueous medium. The C/Fe 3 O 4 hollow granules were uniformly distributed and confined in the 3D nanoarchitecture; this morphology can offer rapid ion transport with improved electronic and chemical kinetics as well as superior adsorption of organic pollutants.

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Adsorbents for the removal of arsenic, cadmium, and lead from contaminated waters

Cited by 255 publications

References 150 publications

Exploring Arsenic Adsorption at low Concentration onto Modified Leonardite

Exploring Arsenic Adsorption at low Concentration onto Modified Leonardite

Treatment of pulp and paper mill effluent using low cost adsorbents: An overview

Carbon-decorated iron oxide hollow granules formed using a silk fibrous template: lithium-oxygen battery and wastewater treatment applications

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