Removal of Heavy Metal Ions from Aqueous Solutions via Adsorption onto Modified Lignin from Pulping Wastes

Çelik, Ali; Demırbas, Ayhan

doi:10.1080/00908310490479583

Cited by 139 publications

(78 citation statements)

References 44 publications

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“…Technological advances by humans have resulted in the contamination of water bodies resulting in the presence of toxic pollutants at concentrations well above the limits set by World Health Organization (WHO) and the Environmental protection agency (EPA) [1,2]. The hazards imposed to humans and aquatic life associated with exposure to metals like chromium, lead, mercury, cadmium and arsenic have been well established in the literature [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Adsorption isotherm and kinetics analysis of hexavalent chromium and mercury on mustard oil cake

Reddy

Chauhan

Chakraborty

2016

Environmental Engineering Research

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The biosorption process has been established as characteristics of dead biomasses of both cellulosic and microbial origin to bind metal ion pollutants from aqueous suspension. The high effectiveness of this process even at low metal concentration, similarity to ion exchange treatment process, but cheaper and greener alternative to conventional techniques have resulted in a mature biosorption technology. Yet its adoption to large scale industrial wastewaters treatment has still been a distant reality. The purpose of this review is to make in-depth analyses of the various aspects of the biosorption technology, staring from the various biosorbents used till date and the various factors affecting the process. The design of better biosorbents for improving their physico-chemical features as well as enhancing their biosorption characteristics has been discussed. Better economic value of the biosorption technology is related to the repeated reuse of the biosorbent with minimum loss of efficiency. In this context desorption of the metal pollutants as well as regeneration of the biosorbent has been discussed in detail. Various inhibitions including the multi mechanistic role of the biosorption technology has been identified which have played a contributory role to its non-commercialization.

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Section: Introductionmentioning

confidence: 99%

Adsorption isotherm and kinetics analysis of hexavalent chromium and mercury on mustard oil cake

Reddy

Chauhan

Chakraborty

2016

Environmental Engineering Research

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“…Inhalation of copper spray industries, tanneries, batteries, paper industries, increases the risk of lung cancer among exposed workers pesticides etc. [2,3]. Several episodes due to heavy metal [13].…”

Section: Introductionmentioning

confidence: 99%

A Novel Agricultural Waste Adsorbent, Watermelon Shell for the Removal of Copper from Aqueous Solutions

Banerjee¹,

Ramesh

Gandhimathi³

2012

IJEE

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Abstract:The present study deals with the application of Watermelon Shell, an agricultural waste, for the adsorptive removal of Cu(II) from its aqueous solutions. This paper incorporates the effects of time, dose, temperature, concentration, particle size, agitation speed and pH. Analytical techniques have been employed to find pore properties and characteristics of adsorbent materials. Batch kinetic and isotherm studies have also been performed to understand the ability of the adsorbents. The adsorption behavior of the Cu(II) has been studied using Freundlich, Langmuir and Tempkin adsorption isotherm models. The monolayer adsorption capacity determined from the Langmuir adsorption equation has been found as 111.1 mg/g. Kinetic measurements suggest the involvement of pseudo-second-order kinetics in adsorptions and is controlled by a particle diffusion process. Adsorption of Cu(II) on adsorbents was found to increase on decreasing initial concentration, increasing pH up to 8, increasing temperature, increasing agitation speed and decreasing particle size. Overall, the present findings suggest that watermelon outer shell is environmentally friendly, efficient and low-cost biosorbent which is useful for the removal of Cu(II) from aqueous media.

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“…Excessive levels of heavy metals in water are an environmental hazard because of their toxicity, accumulation in the food chain and persistence in nature [1][2][3]. Water contamination by heavy metals such as Cr, Cd, Hg, Cu, Ni, As and Pb, is a big environmental concern and it requires significant attention [4][5][6][7][8]. The major sources of heavy metal pollution are municipal waste, metal plating facilities, mining operations, fertilizer industries, tanneries, batteries and paper industries [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Pb(II) ions from aqueous solution using lignin from Hagenia abyssinica

Tesfaw¹,

Chekol²,

Mehretie³

et al. 2017

Bull. Chem. Soc. Eth.

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ABSTRACT. The adsorption of lead(II) ions from aqueous solution onto alkali lignin extracted from Hagenia abyssinica was investigated by electrochemical methods. The effect of solution pH, lignin dosage and contact time were investigated at room temperature in a batch system. Adsorption equilibrium was approached within 80 min. The adsorption kinetics data were described by pseudo-second-order kinetics model, while the equilibrium data were well fitted using the Freundlich model. A maximum adsorption capacity was found to be 80.41 mg g -1 of the dry weight of lignin.

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Removal of Heavy Metal Ions from Aqueous Solutions via Adsorption onto Modified Lignin from Pulping Wastes

Cited by 139 publications

References 44 publications

Adsorption isotherm and kinetics analysis of hexavalent chromium and mercury on mustard oil cake

Adsorption isotherm and kinetics analysis of hexavalent chromium and mercury on mustard oil cake

A Novel Agricultural Waste Adsorbent, Watermelon Shell for the Removal of Copper from Aqueous Solutions

Adsorption of Pb(II) ions from aqueous solution using lignin from Hagenia abyssinica

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