Adsorbents for Industrial Pollution Control

El-Geundi, Mohammad S.

doi:10.1177/026361749701501004

Cited by 124 publications

(87 citation statements)

References 71 publications

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“…They have a variety of engineered surface groups which can be employed in a number of specific applications ranging from purification, decolourisation and deodorisation, chlorine reduction, toxicity reduction, filtration, separation and concentration of recoverable materials (Gadkaree, 1997 andHayashi et al, 2005). Major applications of activated carbons include gas separation and purification, solvent recovery, water treatment, food and food beverage processing, chemical and pharmaceutical processing, sewage treatment, gold recovery, catalysts and catalyst supports, water purification and gas-solid separation (Smisek and Cerny, 1970, El-Geundi, 1997and Marsh, 2001.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of the aurocyanide, complex on granular activated carbons derived from macadamia nut shells – A preliminary study

Poinern¹,

Senanayake

Shah³

et al. 2011

Minerals Engineering

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In this study, waste macadamia nut shells were investigated for potential use as a hard organic precursor for the production of a granular activated carbon material. The processing of the macadamia shells commenced with the carbonised of the shells under a nitrogen atmosphere. This was followed by the physical activation of the shells under a carbon dioxide atmosphere, which was carried out at different temperatures to investigate the effect of the activation temperature on pore formation. The pore structure and gold loading capacity of the synthesised activated carbons were investigated. The porous nature and surface structure of the macadamia shell based activated carbon were examined by Scanning Electron Microscopy (SEM) at various stages of manufacture. In addition, gold loading studies were carried out in conjunction with elemental mapping of the activated carbon surface to determine the gold adsorption sites. The studies have revealed that the macadamia shell based carbons, activated at higher temperatures have a gold loading capacity that is comparable to the commercially available coconut based activated carbons.

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Section: Introductionmentioning

confidence: 99%

Adsorption of the aurocyanide, complex on granular activated carbons derived from macadamia nut shells – A preliminary study

Poinern¹,

Senanayake

Shah³

et al. 2011

Minerals Engineering

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“…As per literature, the various analytic methods attempted for dephenolation of wastewater include steam stripping, solvent extraction, oxidation (O 3 , H 2 O 2 , and ClO 2 ), ion exchange, biodegradation and adsorption methods [4,5,6]. Out of all these, adsorption methods are the most-widely used techniques and activated carbon has been the predominant adsorbent all over the world [7,8]. However, due to its high cost and low regeneration capacity, since the last three decades, extensive researches have been directed towards investigating the adsorption characteristics and potentials of cheaper materials and solid wastes, such as fly ash, peat, soil, rice husk, sawdust, bagasse and so forth [9,10,11,12].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Phenol From Aqueous Media by an Agro-Waste (Hemidesmus Indicus) Based Activated Carbon

Srihari¹

2009

Appl Ecol Env Res

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Abstract. The adsorption of phenol by an agro-waste based activated carbon prepared from the root residue of Hemidesmus Indicus (HIC) was investigated to assess its possible use as adsorbent. The effect of various factors, namely, pH, initial adsorbate concentration, adsorbent dosage and contact time were studied to identify adsorption capacity of HIC. The results were compared to that obtained from adsorption of phenol by commercial activated carbon (CAC). Adsorption data were modeled with the Langmuir and Freundlich isotherms. The kinetic models were also applied for the pseudo-first-order, pseudo-second-order, intra-particle diffusion and pore diffusion coefficients. Although HIC and CAC showed much similar isotherm models and kinetics, yet HIC was found to show much higher boundary layer effect and pore-diffusion coefficients, in relation to CAC.

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“…These materials have been reported to adsorb different pollutants such as heavy metal ions, dyestuff and other toxic pollutants [14], have been evaluated for the adsorption of heavy metal ions from wastewater. Research in the use of agricultural by-products [15] has included metal binding studies with Daturainnoxia, dyed cellulosic materials, wheat and rice bran, oat fiber, sugarcane bagasse, maize cob [16] and sawdust to mention a few [17]. By using natural agricultural waste fibers, the adsorption of pollutants from aqueous solutions can be much more economical with regard to other similar physico-chemical processes.…”

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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Adsorbents for Industrial Pollution Control

Cited by 124 publications

References 71 publications

Adsorption of the aurocyanide, complex on granular activated carbons derived from macadamia nut shells – A preliminary study

Adsorption of the aurocyanide, complex on granular activated carbons derived from macadamia nut shells – A preliminary study

Adsorption of Phenol From Aqueous Media by an Agro-Waste (Hemidesmus Indicus) Based Activated Carbon

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

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