The past, present, and future trends of biosorption

Abstract

The discovery and further development of biosorption phenomena provide a basis for a whole new technology aimed at the removal of various pollutants or the recovery of valuable resources from aqueous systems. Today, biosorption is one of the main components of environmental and bioresource technology. Since the status of scientific development of a technology can be reflected through analyses of the literatures pertaining to it, in this review, we qualitatively examine almost all aspects of biosorption research. A range of subjects are covered, including the initial history, raw materials, mechanisms, instrumental tools, process factors, modification and immobilization methods, recovery and regeneration, continuous processes, commercial application, and modeling studies of biosorption. Finally, we summarized the important considerations of the current research on biosorption, as well as the suggestions for its future directions. We believe that this review will prove to be useful for scientists and engineers in the performance of their research into biosorption. © KSBB hÉóïçêÇëW=~ÇëçêÄÉåíI=ÄáçëçêÄÉåíI=ÄáçëçêéíáçåI=ÜÉ~îó=ãÉí~äëI=ÇóÉëI=éêÉÅáçìë=ãÉí~äë= = = = =

Fungal Biosorption for Cadmium and Mercury Heavy Metal Ions Isolated from Some Polluted Localities in KSA

“…However, many characteristic attributes of living microorganisms have not been exploited in large-scale applications (Park et al, 2010). The choice organism must develop resistance towards metal ions as it comes into contact with the heavy metal pollutant to achieve the goal of remediation.…”

Evaluation of adsorption potential of bamboo biochar for metal-complex dye: equilibrium, kinetics and artificial neural network modeling

“…In general, the pseudo-second-order equation has been more successfully applied to the adsorption of metal ions, dyes, herbicides and other organic substances from aqueous solutions compared with the pseudo-first-order model (Park et al 2010). In this study, the pseudo-second-order (Ho and McKay 1998) and Weber-Morris (Ö zer et al 2006) models were applied to describe the adsorption kinetics as follows:…”

“…Langmuir and Freundlich models have been most commonly used to describe the adsorption isotherm (Park et al 2010), which were evaluated for their ability to fit the equilibrium data in this research. The parameters for bamboo biochar obtained for the different isotherm models are listed in (Table 2) were all in range 2-10, indicating that good adsorption occurred (Subramanyam and Das 2009).…”

The adsorption potential and recovery of thallium using green micro-algae from eutrophic water sources

“…A variety of microorganisms like bacteria and algae have been utilised in biosorption of some common heavy metals with the exception of Tl [20,21]. Information on the occurrence, mechanisms, behaviour, and bioremediation of thallium toxicity in the environment is still sketchy [18,22].…”