Colour removal from textile effluents by adsorption techniques

El-Geundi, Mohammad S.

doi:10.1016/0043-1354(91)90006-c

Cited by 264 publications

(108 citation statements)

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“…The coulombic forces between dye species and negatively charged cellulose in water are the major interactions that affect the adsorption of dyes on the materials. El-Geundi [107] studied maizecob, an agricultural waste, without any pretreatment for the removal of two basic dyes (astrazone blue and maxilon red) and two acid dyes (telon blue and erinoyl red). The agricultural waste was found to have high adsorption capacities of 160 and 94.5 mgg −1 for astrozone blue and maxilonred and low capacities of 47.7 and 41.4 mgg −1 for erinoyl red and telon blue, respectively.…”

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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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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“…The level of dye removal by the fibres and the subsequent adsorption isotherm for the PVP/TA fibres and the disperse dye were determined using a bottle point adsorption method [23,24]. Dye dispersions of concentrations of 25-300 mg dm -3 were made using Dianix Blue AC-E and distilled water.…”

Section: Dye Adsorption Studymentioning

confidence: 99%

Centrifugal melt spinning of polyvinylpyrrolidone (PVP)/triacontene copolymer fibres

2016

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Polyvinylpyrrolidone/1-triacontene (PVP/TA) copolymer fibre webs produced by centrifugal melt spinning were studied to determine the influence of jet rotation speed on morphology and internal structure as well as their potential utility as adsorbent capture media for disperse dye effluents. Fibres were produced at 72°C with jet head rotation speeds from 7000 to 15,000 r min -1 . The fibres were characterised by means of SEM, XRD and DSC. Adsorption behaviour was investigated by means of an isothermal bottle point adsorption study using a commercial disperse dye, Dianix AC-E. Through centrifugal spinning nanofibers and microfibers could be produced with individual fibres as fine as 200-300 nm and mean fibre diameters of ca. 1-2 lm. The PVP/TA fibres were mechanically brittle with characteristic brittle tensile fracture regions observed at the fibre ends. DSC and XRD analyses suggested that this brittleness was linked to the graft chain crystallisation where the PVP/TA was in the form of a radial brush copolymer. In this structure, the triacontene branches interlock and form small lateral crystals around an amorphous backbone. As an adsorbent, the PVP/TA fibres were found to adsorb 35.4 mg g -1 compared to a benchmark figure of 30.0 mg g -1 for a granular-activated carbon adsorbent under the same application conditions. PVP/TA is highly hydrophobic and adsorbs disperse dyes through the strong ''hydrophobic bonding'' interaction. Such fibrous assemblies may have applications in the targeted adsorption and separation of non-polar species from aqueous or polar environments.

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“…Use of waste materials as adsorbents can reduce waste disposal costs, as well as reduce adsorbent costs (Bhatnagar and Sillanpää, 2010). Accordingly, a variety of waste materials have been explored as potential activated carbon adsorbents, including sewage sludge (Aksu and Yerner, 1998;Chen et al, 2005;Kojima et al, 2002;Rio et al, 2005;Thawornchaisit and Pakulanon, 2007), tires (Bhatnagar and Sillanpää, 2010), newspaper (Hamabe et al, 1998;Shimada et al, 1999), cork (Olivella et al, 2011), ion-exchange resin (Long et al, 2008), seaweed (Ghimire et al, 2007) and various agricultural wastes Morus plant (Gopalswami et al, 2010), jatropha husk (Namasivayam et al, 2007), coir pith (Kadirvelu and Namasivayam, 2000;Namasivayam and Kavitha, 2002;Namasivayam and Sangeetha, 2006;Namasivayam et al, 2001;Parab et al, 2006), maize waste (El-Geundi, 1991;ElizaldeGonzález et al, 2006), rice husk (Ahmaruzzaman and Sharma, 2005;Akhtar et al, 2006;Chandrasekhar and Pramada, 2006;Kannan and Sundaram, 2001;Kaur and Prasad, 2001;Kumar and Bandyopadhyay, 2006;Lakshmi et al, 2009;Mahvi et al, 2004;Malik, 2003;McKay et al, 1999;Mohanty et al, 2006;Srinivasan et al, 1988;Wang and Lin, 2008;Zafar et al, 2007), wheat bran (Bulut and Baysal, 2006;…”

Section: Introductionmentioning

confidence: 99%

Analysis and comparison of inertinite-derived adsorbent with conventional adsorbents

Gangupomu

Kositkanawuth

Sattler

et al. 2012

j air waste manag assoc

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Colour removal from textile effluents by adsorption techniques

Cited by 264 publications

References 3 publications

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

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

Centrifugal melt spinning of polyvinylpyrrolidone (PVP)/triacontene copolymer fibres

Analysis and comparison of inertinite-derived adsorbent with conventional adsorbents

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