Journal ArticleDOI
Biosorption of Trivalent Chromium from Wastewater: An Approach towards Green Chemistry
J. Kanagaraj,Thamizharasan Senthilvelan,Ramesh C. Panda,Rathinam Aravindhan,Asit Baran Mandal +4 more
TLDR
In this article, a mathematical model representing the biosorption kinetics was formulated, supporting the Langmuir isotherm for the adsorption of chromium, which is one of the metals used in industry that create environmental toxicity and pollution problems, and the analysis of pollution parameters (chemical oxygen demand, total organic content, total dissolved solid, total suspended solid) suggest a significant reduction of the pollution load.Abstract:
Chromium is one of the metals used in industry that create environmental toxicity and pollution problems. In the present study, chromium in wastewater was removed by a biosorption method using a bacterial culture of Bacillus pumilus. A mathematical model representing the biosorption kinetics was formulated, supporting the Langmuir isotherm for the adsorption of chromium. Fourier transform infrared and scanning electron microscopy studies were used to characterize the adsorption of chromium by the bacterial biomass. The analysis of pollution parameters (chemical oxygen demand, total organic content, total dissolved solid, total suspended solid) suggest a significant reduction of the pollution load. The results show that the method developed here is very effective for the removal of chromium from an aqueous environment.read more
Citations
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Journal ArticleDOI
Removal of chromium from wastewater by membrane filtration, chemical precipitation, ion exchange, adsorption electrocoagulation, electrochemical reduction, electrodialysis, electrodeionization, photocatalysis and nanotechnology: a review
TL;DR: In this article, the authors review aqueous chromium species, their toxicity and methods to remove Cr such as membrane filtration, chemical precipitation, ion exchange, adsorption electrocoagulation, electrochemical reduction, electrodialysis, electrodeionization, photocatalysis and nanotechnology.
Journal ArticleDOI
Biosorption and removal of toxic heavy metals by metal tolerating bacteria for bioremediation of metal contamination: A comprehensive review
TL;DR: In this paper, the metal binding potentials of bacterial biomass towards different metal ions, cell wall constituent, biofilm, extracellular polymeric substances (EPS) in metal binding, and the effect of various environmental parameters influencing the metal removal were summarized.
Journal ArticleDOI
Chemically Modified CaO/Fe3O4 Nanocomposite by Sodium Dodecyl Sulfate for Cr(III) Removal from Water
Sajad Tamjidi,Hossein Esmaeili +1 more
Journal ArticleDOI
Effect of interfering ions on phosphate removal from aqueous media using magnesium oxide@ferric molybdate nanocomposite
TL;DR: In this paper, the removal efficiency of phosphate ion from aqueous media using magnesium oxide/iron molybdate (MgO/Fe2(MoO4)3) nanocomposite was investigated.
Journal ArticleDOI
Kinetic, thermodynamic and equilibrium studies on removal of hexavalent chromium from aqueous solutions using agro-waste biomaterials, casuarina equisetifolia L. and sorghum bicolor
TL;DR: In this article, the removal of Cr(VI) by biosorption on two agro waste materials, casuarinas fruit powder (CFP) and sorghum stem powder (SSP), has been investigated.
References
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Journal ArticleDOI
The kinetics of sorption of basic dyes from aqueous solution by sphagnum moss peat
Yuh-Shan Ho,Gordon McKay +1 more
TL;DR: In this paper, three basic dyes, namely, Chrysoidine, Astrazon Blue, and Astrazone Blue, were applied to sphagnum moss peat.
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Industrial Wastewater Treatment Technology
TL;DR: In this paper, the authors discuss industrial wastewater treatment technology, and propose a method to improve the quality of wastewater treatment in industrial water treatment plants by using industrial wastewater data collected from wastewater treatment plants.
Journal ArticleDOI
Biosorption mechanism of nine different heavy metals onto biomatrix from rice husk
TL;DR: A biomatrix was prepared from rice husk, a lignocellulosic waste from agro-industry, for the removal of several heavy metals as a function of pH and metal concentrations in single and mixed solutions, which indicated the presence of several functional groups for binding metal ions.
Journal ArticleDOI
Contribution of Sulfonate Groups and Alginate to Heavy Metal Biosorption by the Dry Biomass of Sargassum fluitans
Eric Fourest,Bohumil Volesky +1 more
TL;DR: In this paper, the mechanism of heavy metal complexation by the dry biomass of the brown seaweed Sargassum fluitans was investigated at the molecular level using different techniques.
Journal ArticleDOI
Biosorption of toxic metals from aqueous solutions by bacteria strains isolated from metal-polluted soils
TL;DR: In this paper, the use of biological materials for effective removal and recovery of heavy metals from contaminated wastewaters has emerged as a potential alternative method to conventional treatment techniques, which can provide a large contact interface, which would interact with metals from the surrounding environment.