Adsorption of selected toxic metals by modified peanut shells

Chamarthy, Srinath; Seo, Chung W.; Marshall, Wayne E.

doi:10.1002/jctb.418.abs

Cited by 16 publications

(18 citation statements)

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“…Adsorption applications of onion skins have been carried out by various assays (Saka et al 2011a, b;Saka and Ş ahin 2011 AbdelGhani et al 2007AbdelGhani et al , 2008Abdel-Ghani and Elchaghaby 2007;Abdel-Halim et al 2003;Ahluwalıa and Goyal 2005;Benhimaa et al 2008;Chamarthy et al 2001;Dahiya et al 2008;El-Ashtoukhya et al 2008;Feng et al 2004;Fıol et al 2006;Ghaffar 2008;Goel et al 2005;Gong et al 2005;Gueu et al 2007;Han et al 2005;Hanafiah et al 2006;Hashem 2007;Ho and Ofomaja 2006;Ho 2005;Ilhan et al 2004;Imamoglu and Tekir 2008;Iyagba and Opete 2009;Kannan and Thambidurai 2007;Kannan and Veemaraj 2009;Kim et al 2006;Kiran and Akar 2005;Krishnan et al 2003;Liao et al 2010;Lugo-Lugo et al 2009;Martınez et al 2006;Meunier et al 2003;Naddafi et al 2007;Ö zdemir et al 2004;Qaiser et al 2009;Quek et al 1998;Sarı and Tuzen 2008;Sekar et al 2004;…”

Section: Onion Skinsmentioning

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.

135

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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: Onion Skinsmentioning

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.

135

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“…In all the cases (i.e., Hg (II), Cd (II), and Pb (II)), the adsorption kinetics was found to be up to five times faster than that found with a commercial granular activated carbon, and the adsorption capacity was 9 to 32 times higher. Peanut shell has also been used by Chamarthy et al, [100] who prepared adsorbents by heat treatment in the presence of phosphoric or citric acid and used it for the adsorption of Cd 2+ , Cu 2+ , Ni 2+ , Pb 2+ , and Zn 2+ . Their investigations showed that phosphoric acid-modified shells adsorbed metal ions in larger amounts compared to citric acid modified shells.…”

Section: Bio-waste Materials As Adsorbent Of Contaminate From Waste Wmentioning

confidence: 99%

Applications of Bio-waste Materials as Green Synthesis of Nanoparticles and Water Purification

Ali¹

2017

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Towards the future of green, sustainable and renewable products the suggestion of using the agriculture biomass in the coming decades got increased. Biomass material is one of the important sources of alternative material for the production of biocomposite products. An increasing global awareness about environmental issues is acting as the driving force behind the utilization of biomass material as valuable products. Bio-waste materials (agricultural waste) have been recognized as an ecological burden for the society they stimulated new gateways for the production of renewable, low cost and sustainable adsorbents for water treatment applications. In the area of water purification, nanotechnology offers the possibility of an efficient removal of pollutants and bacteria. Adsorption has proved that it is the best process of water treatment technologies, because of its significant advantages. Different modification methods of waste-based adsorbents, have also been presented to highlight and discuss the key advancements on the preparation of novel adsorbents using agricultural "agro-waste". Adsorption mechanisms responsible for pollutants removal by waste-based adsorbents have also been discussed. It also focuses on the computational aspects of binding of biomolecules to nanoparticles (NPs) and some of the applications of the biosynthesized NPs as water purification. The nature acts like a large ''bio-laboratory" comprising of plants, algae, fungi, yeast, etc. which are composed of biomolecules. These naturally occurring biomolecules have been identified to play an active role in the formation of nanoparticles with distinct shapes and sizes thereby acting as a driving force for the designing of greener, safe and environmentally benign protocols for the synthesis of NPs. The biosynthesis of NPs using waste materials will help researchers not only to design safer nanomaterials but also to promote the understanding of health and safety considerations of NPs. Useful materials can be produced easily even at reasonable scale because the biomaterial based routes eliminate the need to use toxic chemicals. The aim of this review is to summarize the adsorption capacities for organic and inorganic pollutants by different bio-waste-based adsorbents.

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“…122 In another application, the fibrous skeleton that supports the cellulosic layer of the peanut husk can be used in the form of nonwoven biodegradable fabrics to control soil erosion until vegetation is matured. 123 Peanut shells are also employed for the absorption of toxic metal ions including cadmium copper, nickel, lead, and zinc from solution 124 and in the treatment of industrial wastewaters. 125 In comparison with pine sawdust, a common copper remover in industry, peanut husk removes 98% of copper ions from wastewaters while pine sawdust removes only 44%.…”

Section: Peanut Huskmentioning

confidence: 99%