Equilibrium and kinetics of biosorption of lead(II) from aqueous solutions by Cephalosporium aphidicola

Tunalı, Sibel; Akar, Tamer; Kıran, İsmail; Özcan, Adnan

doi:10.1016/j.seppur.2005.06.009

Cited by 251 publications

(110 citation statements)

References 38 publications

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“…In water, lead is released from lead treatment and recovery industries, such as metal plating, tanneries, oil refining and mining by effluents. Lead poisoning can cause hypertension, nephritis, abdominal pain, constipation, cramps, nausea, vomiting, behavioral changes, learning disabilities, reading problems, development defects and language difficulties (Kapoor et al 1999;Lo et al 1999;Ake et al 2001;Tunali et al 2006;Farrag et al 2009;Gupta et al 2009a, b). Lead (II) ion (Pb 2? )…”

Section: Introductionmentioning

confidence: 99%

“…ions. Adsorbent materials derived from low-cost agricultural wastes can be used for the effective removal and recovery of heavy metal ions from wastewater (Holan and Volesky 1994;Volesky and Holan 1995;Ake et al 2001;Ahalya et al 2003;Ö zcan et al 2004;Tunali et al 2006). The basic components of the agricultural waste biomass include hemicelluloses, lignin, extractives, lipids, proteins, simple sugars, water hydrocarbons and starchcontaining variety of functional groups (Bailey et al 1999).…”

Section: Introductionmentioning

confidence: 99%

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Applications on agricultural and forest waste adsorbents for the removal of lead (II) from contaminated waters

Saka

Şahi̇n

Küçük

2012

Int. J. Environ. Sci. Technol.

130

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At present, there is growing interest in using low cost, commercially available materials for the adsorption of heavy metals. The major advantages of adsorption technologies are its effectiveness in reducing the concentration of heavy metal ions to very low levels and the use of inexpensive adsorbent materials. In this review, agricultural and forest waste adsorbents were used to remove Pb 2? ions in wastewater treatment, and their technical feasibilities were reviewed in studies mainly from 2000 to 2010. They all were compared with each other by metal binding capacities, metal removal performances, sorbent dose, optimum pH, temperature, initial concentration and contact time. Although commercial activated carbon is widely used in wastewater treatment applications, it has high costs. The use of agricultural by-products as adsorbent material to purify heavy metal contaminated water has become increasingly popular through the past decade because they are less expensive, biodegradable, abundant and efficient. Instead of activated carbon, this study was focused on the inexpensive materials such as agricultural and forest waste. It was shown that these alternative adsorbents had sufficient binding capacity to remove Pb 2? ions from wastewater.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Applications on agricultural and forest waste adsorbents for the removal of lead (II) from contaminated waters

Saka

Şahi̇n

Küçük

2012

Int. J. Environ. Sci. Technol.

130

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“…Those data might be related to the solubility of the adsorbent, the electrostatic induction among those binding sites, and the repulsive actions. [22] For a certain initial concentration of the metal ions in a solution, the carbonized Eupatorium adenophorum with an overdosage will increase the number of ineffective sites on the carbon. Adding adsorbents by multiple portions can not only improve the adsorption efficiency, but also save the expense.…”

Section: Resultsmentioning

confidence: 99%

Study on adsorption of Cu(II)–Cr(VI) binary system by carbonized Eupatorium adenophorum

Chen

Song

Yang

2016

Separation Science and Technology

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We first report a mechanism study on the adsorption of Cu(II)-Cr(VI) binary mixture by a novel low-cost adsorbent, carbonized Eupatorium adenophorum. The influences by pH value, dosage, initial concentration, temperature, and adsorption time on its performance to absorb copper and chromium were investigated. The experimental data were fitted according to the Langmuir and Freundlich adsorption isotherm models, the pseudo-first-order kinetics, the pseudo-second-order kinetics, and the intra-particle diffusion model. The results indicated that when the reaction system was with its pH = 5, the dosage of carbonized Eupatorium adenophorum was 0.1 g, the adsorption time was 30 min, and the temperature was 25°C; the adsorption capacities for Cu(II) and Cr(VI) reached 27.62 mg/g and 9.68 mg/g, respectively. The process of carbonized Eupatorium adenophorum to absorb Cr(VI) is also accompanied by redox reactions. The Langmuir model and the pseudo-second-order model can better fit the experimental data. Observation by fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) found no significant change of functional groups before and after the adsorption by carbonized Eupatorium adenophorum, and this adsorption process is mainly a physical adsorption. ARTICLE HISTORY

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“…[19][20][21] Their unique chemical composition makes these wastes economic and ecofriendly alternatives the removal of chlorophenols. 6,7,22,23 We are interested in bark of Turkish Sweetgum as biosorbent.…”

Section: Introductionmentioning

confidence: 99%

Biosorption of 2,4 dichlorophenol onto Turkish Sweetgum bark in a batch system: equilibrium and kinetic modeling

Yıldız¹,

Keskin²,

Demirak³

2017

ACSi

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In this study, Turkish Sweetgum bark was used as a new biosorbent to investigate the removal of hazardous 2,4 dichlorophenol (2,4-DCP) from aqueous solutions in batch biosoption experiments. The effective usage of Turkish sweetgum bark is a meaningful work for environmental utilization of agricultural residues. The effects of experimental parameters like solution pH, contact time, initial concentration of adsorbate and amount of bisorbent dosage were investigated in a series of batch studies at 25 °C. Taguchi's Orthogonal Array (OA) analysis was used to find the best experimental parameters for the optimum design process in this study. The functional groups and surface properties of biosorbent were characterized by using Fourier transformer infrared (FTIR) and scanning electron microscopy (SEM) techniques. The experimental data were fitted to Langmuir isotherm and Freundlich isotherm models. There is a good agreement between the parameters and this confirms the monolayer adsorption of 2,4-DCP onto sweetgum bark. As a result of kinetic studies, the pseudo-second-order kinetic model was found to be suitable for all the data. Also, the results of the study show that Turkish Sweetgum bark can be potential as a low-cost alternative commercial adsorbents for removal 2,4 dichlorophenol from aqueous solutions.

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Equilibrium and kinetics of biosorption of lead(II) from aqueous solutions by Cephalosporium aphidicola

Cited by 251 publications

References 38 publications

Applications on agricultural and forest waste adsorbents for the removal of lead (II) from contaminated waters

Applications on agricultural and forest waste adsorbents for the removal of lead (II) from contaminated waters

Study on adsorption of Cu(II)–Cr(VI) binary system by carbonized Eupatorium adenophorum

Biosorption of 2,4 dichlorophenol onto Turkish Sweetgum bark in a batch system: equilibrium and kinetic modeling

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