Biosorption

Biosorption has emerged as an alternative sustainable strategy for cleaning up water contaminated through industrial activities and/or natural processes. Since biomaterials contain discrete reactive sites to which adsorption takes place, the biosorption process is amenable to thermodynamic treatment

Biosorption of lead(II) ions onto Phaseolus vulgaris L. waste was investigated with the variation in the parameters of pH, contact time, biosorbent and lead(II) concentrations and temperatures. The nature of the possible biosorbent and metal ion interactions was examined by the FTIR technique. The l

In this study, adsorption of Cu(II) onto the five locally abundantly low-cost biosorbents (Laminaria japonica, P. yezoensis Ueda, rice bran, wheat bran and walnut hull) was investigated depending on initial solution pH, contact time, adsorbent concentration and reaction temperature. Cu(II) removal w

The tannery effluent carrying hazardous Cr(VI) species due to the oxidation of Cr(III) species was found to pollute the soil and the ground water of Jajmau area of Kanpur city where a large number of tanneries are located. We have studied the phyto-remediation of Cr(VI). Biosorption of the chromium

As a biomass material, cotton was investigated for feasibility to be used as a cost-effective biosorbent for boron removal as the post-treatment in a desalination plant. Based on the batch tests, cotton demonstrated a good capacity of adsorption at a pH about 7. This capacity was found to increase w

Biosorption experiments were performed using different pretreated activated sludge as bioadsorbent for Cu2+, Cd and Ni2+. Pretreatment with NaOH was found to improve the adsorption capacity of the sludge where as treatment with HCl reduces it. The treated and untreated sludge show great affinity tow

Membrane biosorption is a new integrated process for xenobiotics removal from a water environment. The mathematical model has been presented in the paper based on biosorption equilibrium and kinetics as well as relevant mass balances of the integrated system. To achieve steady-state conditions the b

In this work two distinct (flocculent and non-flocculent) yeast wastes from Portuguese breweries were used for the selective removal of Cu2+, Cd2+ and Pb2+ from aqueous solutions. One of the goals was to establish both the pH profiles for the removal of each metal ion (1.0 mM) and the effect on the