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Journal ArticleDOI

Biosorption of heavy metal ions using wheat based biosorbents – A review of the recent literature

01 Jul 2010-Bioresource Technology (Elsevier)-Vol. 101, Iss: 14, pp 5043-5053
TL;DR: High efficiency, high biosorption capacity, cost-effectiveness and renewability are the important parameters making these materials as economical alternatives for metal removal and waste remediation.
About: This article is published in Bioresource Technology.The article was published on 2010-07-01. It has received 758 citations till now. The article focuses on the topics: Biosorption.
Citations
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Journal ArticleDOI
TL;DR: The inaccurate use of technical terms, the problem associated with quantities for measuring adsorption performance, the important roles of the adsorbate and adsorbent pKa, and mistakes related to the study of adsor adaptation kinetics, isotherms, and thermodynamics are discussed.

1,691 citations

Journal ArticleDOI
TL;DR: In this article, the authors provide a sketch about treatment technologies followed by their heavy metal capture capacity from industrial effluent, the treatment performance, their remediation capacity and probable environmental and health impacts were deliberated in this review article.
Abstract: The controversy related to the environment pollution is increasing in human life and in the eco-system. Especially, the water pollution is growing rapidly due to the wastewater discharge from the industries. The only way to find the new water resource is the reuse of treated wastewater. Several remediation technologies are available which provides a convenience to reuse the reclaimed wastewater. Heavy metals like Zn, Cu, Pb, Ni, Cd, Hg, etc. contributes various environmental problems based on their toxicity. These toxic metals are exposed to human and environment, the accumulation of ions takes place which causes serious health and environmental hazards. Hence, it is a major concern in the environment. Due to this concern, the significance of developing technology for removing heavy metals has been increased. This paper contributes the outline of new literature with two objectives. First, it provides the sketch about treatment technologies followed by their heavy metal capture capacity from industrial effluent. The treatment performance, their remediation capacity and probable environmental and health impacts were deliberated in this review article. Conclusively, this review paper furnishes the information about the important methods incorporated in lab scale studies which are required to identify the feasible and convenient wastewater treatment. Moreover, attempts have been made to confer the emphasis on sequestration of heavy metals from industrial effluent and establish the scientific background for reducing the discharge of heavy metals into the environment.

1,040 citations

Journal ArticleDOI
TL;DR: In this article, a review of different treatment methods for removing heavy metals from the aquatic environment with a different degree of success has been presented, and the distinctive sorts of treatment strategies for the removal of the toxic metals from wastewater had been explained.

742 citations

Journal ArticleDOI
TL;DR: In this article, the authors make in-depth analyses of the various aspects of the biosorption technology, staring from the various biosorbents used till date and the various factors affecting the process.
Abstract: The biosorption process has been established as characteristics of dead biomasses of both cellulosic and microbial origin to bind metal ion pollutants from aqueous suspension. The high effectiveness of this process even at low metal concentration, similarity to ion exchange treatment process, but cheaper and greener alternative to conventional techniques have resulted in a mature biosorption technology. Yet its adoption to large scale industrial wastewaters treatment has still been a distant reality. The purpose of this review is to make in-depth analyses of the various aspects of the biosorption technology, staring from the various biosorbents used till date and the various factors affecting the process. The design of better biosorbents for improving their physico-chemical features as well as enhancing their biosorption characteristics has been discussed. Better economic value of the biosorption technology is related to the repeated reuse of the biosorbent with minimum loss of efficiency. In this context desorption of the metal pollutants as well as regeneration of the biosorbent has been discussed in detail. Various inhibitions including the multi mechanistic role of the biosorption technology has been identified which have played a contributory role to its non-commercialization.

684 citations

References
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Journal ArticleDOI

24,580 citations


"Biosorption of heavy metal ions usi..." refers methods in this paper

  • ...The surface area is calculated by employing Brunauer–Emett–Teller (BET) adsorption isotherm using nitrogen as the adsorbate (Brunauer et al., 1938)....

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Book
15 Aug 1990
TL;DR: The state of the art in the field of biosorption is reviewed, with many references to recent reviews and key individual contributions, and the composition of marine algae polysaccharide structures, which seem instrumental in metal uptake and binding are discussed.
Abstract: Only within the past decade has the potential of metal biosorption by biomass materials been well established. For economic reasons, of particular interest are abundant biomass types generated as a waste byproduct of large-scale industrial fermentations or certain metal-binding algae found in large quantities in the sea. These biomass types serve as a basis for newly developed metal biosorption processes foreseen particularly as a very competitive means for the detoxification of metal-bearing industrial effluents. The assessment of the metal-binding capacity of some new biosorbents is discussed. Lead and cadmium, for instance, have been effectively removed from very dilute solutions by the dried biomass of some ubiquitous species of brown marine algae such as Ascophyllum and Sargassum, which accumulate more than 30% of biomass dry weight in the metal. Mycelia of the industrial steroid-transforming fungi Rhizopus and Absidia are excellent biosorbents for lead, cadmium, copper, zinc, and uranium and also bind other heavy metals up to 25% of the biomass dry weight. Biosorption isotherm curves, derived from equilibrium batch sorption experiments, are used in the evaluation of metal uptake by different biosorbents. Further studies are focusing on the assessment of biosorbent performance in dynamic continuous-flow sorption systems. In the course of this work, new methodologies are being developed that are aimed at mathematical modeling of biosorption systems and their effective optimization. Elucidation of mechanisms active in metal biosorption is essential for successful exploitation of the phenomenon and for regeneration of biosorbent materials in multiple reuse cycles. The complex nature of biosorbent materials makes this task particularly challenging. Discussion focuses on the composition of marine algae polysaccharide structures, which seem instrumental in metal uptake and binding. The state of the art in the field of biosorption is reviewed in this article, with many references to recent reviews and key individual contributions.

3,388 citations


"Biosorption of heavy metal ions usi..." refers background in this paper

  • ...Percentage removal gives no information about the amount of biomass used and, sometimes, can be misleading while comparing different biomaterials (Volesky and Holan, 1995)....

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  • ...Metal biosorption is the removal of metal ions by inactive, nonliving biomass due to highly attractive forces present between the two (Volesky and Holan, 1995)....

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  • ...Biosorption is the removal of materials (compounds, metal ions, etc.) by inactive, non-living biomass (materials of biological origin) due to ‘‘high attractive forces” present between the two (Volesky and Holan, 1995)....

    [...]

Journal ArticleDOI

2,569 citations


"Biosorption of heavy metal ions usi..." refers background in this paper

  • ...The value of RL indicates the type of isotherm to be unfavourable (RL > 1), linear (RL = 1), irreversible (RL = 0) or favourable (0 > RL > 1) (Hall et al., 1966)....

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Journal ArticleDOI
TL;DR: The emphasis is on outlining the biochemical properties of the brown algae that set them apart from other algal biosorbents, including alginate and fucoidan, which are chiefly responsible for heavy metal chelation.

2,191 citations


"Biosorption of heavy metal ions usi..." refers background in this paper

  • ...A number of other reviews are available in the literature (Davis et al., 2003; Lodiero et al., 2006; Nurchi and Villaescusa, 2008; Romera et al., 2006; Shukla et al., 2002)....

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Journal ArticleDOI
TL;DR: The organic forms of mercury are generally more toxic to aquatic organisms and birds than the inorganic forms, and the form of retained mercury in birds is more variable and depends on species, target organ and geographical site.

1,730 citations


"Biosorption of heavy metal ions usi..." refers background in this paper

  • ...fuel burning, mining and metallurgical processes, paint and chloralkali industries Neurological and renal disturbances, impairment of pulmonary function, corrosive to skin, eyes, muscles, dermatitis, kidney damage Boening (2000), Manohar et al....

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  • ...fuel burning, mining and metallurgical processes, paint and chloralkali industries Neurological and renal disturbances, impairment of pulmonary function, corrosive to skin, eyes, muscles, dermatitis, kidney damage Boening (2000), Manohar et al. (2002), Morel et al. (1998)...

    [...]

  • ...fuel burning, mining and metallurgical processes, paint and chloralkali industries Neurological and renal disturbances, impairment of pulmonary function, corrosive to skin, eyes, muscles, dermatitis, kidney damage Boening (2000), Manohar et al. (2002), Morel et al....

    [...]