The removal of copper ions from aqueous solutions using bean shells as an adsorbent is presented in this paper. influence the solution pH on biosorption capacity was investigated. increased with increase pH. pseudo-second order kinetic model showed best agreement analyzed experimental data, indicating that chemisorption could be a possible way binding to surface shells. Langmuir isotherm fitted...

The amount of heavy metals released into the environment has significantly increased. Industrial wastewaters, e.g. from mining or battery manufacturing, are often polluted with such as Cd, Cr Pb. These threat and can cause health problems even at low concentrations. Therefore, their proper removal industrial wastewater before its disposal is paramount importance (Javanbakht et al. [1]). Here ab...

Heavy metal contamination in the natural environment can occur as long-term site pollution or surges of pollutants from wastewater discharge. It is well recognized that heavy discharge processing industries has a negative impact on environment. Conventional methods removal aqueous solutions are not cost-effective and produce large amounts harmful chemical sludge. A novel alternative approach to...

Biosorption of Cu (II) ion onto a non – conventional water hyacinth biomass was investigated in column reactor system. Process parameters which include initial metal ion concentration, contact time and pH of solution were varied in order to evaluate their influence on the biosorption process. The results obtained indicate that the biosorption of Cu (II) ion on water hyacinth biomass is better a...

Some industrial wastewaters contain high quantities of non-toxic salts besides heavy metal ions. The presence of salt ions leads to a high ionic strength of water, which may significantly affect the performance of the biosorption process, so that the effect of salts on the biosorption of heavy metal ions should be investigated. In this study the effect of different salts concentrations (0.1; 0....

Crab shell particles were tested for its ability to remove Zn 2+ ions from aqueous solution and were evaluated in a batch reactor and in a fixed-bed column. The binding of Zn 2+ ions by crab shell was found to be affected significantly by pH, with maximum sorption capacity 71.46 mg/g observed at pH 4.5. The sorption isotherm of Zn 2+ ions on crab shell particles was modeled on the application o...

The present study explores the effectiveness of Saraca indica leaf powder, a surplus low value agricultural waste, in removing Pb ions from aqueous solution. The influence of pH, biomass dosage, contact time, particle size and metal concentration on the removal process were investigated. Batch studies indicated that maximum biosorption capacity for Pb was 95.37% at the pH 6.5. The sorption proc...

ABSTRACT Because of the severity of heavy metal contamination and potential adverse health impact on the public, tremendous efforts have been made to purify waters containing toxic metal ions. Biosorption is presented as an alternative to traditional physicochemical means for removing toxic metals from groundwaters and wastewaters. Removal of lead from solution was studied using growing cells a...

Synthetic dyes are extensively used in many industrial applications like textile, leather and cosmetics. The release of various harmful dyes from these industries into the environment has attracted great attention worldwide in recent years. Biosorption is a very effective dye removal technique from aqueous system. In this research, the biosorption performance of cone of red pine for C.I. Basic ...

Fluorescent Pseudomonas strain Psd is a soil isolate, possessing multiple plant growth promoting (PGP) properties and biocontrol potential. In addition, the strain also possesses high Zn2+ biosorption capability. In this study, we have investigated the role exopolysaccharides (EPS) play in Zn2+ biosorption. We have identified that alginates are the prime components contributing to Zn2+ biosorpt...