Microorganisms can be important biosorbents for heavy metal remediation of contaminated soils and wastewaters.With different types and concentrations of heavy metals, strains display different resistance and removal abilities to the heavy metals. In the present study, biosorption of Pb(II) was carried out using Aspergillus niger NCIM 616 and also studied the effect of paramaters such as pH, tem...

The biosorption characteristic of Cu(II) using live and dead cells of Yarrowia lipolytica as biosorbents have been investigated in the present research. Biosorption of Cu(II) was enhanced with an increase in pH, temperature, agitation, contact time and initial concentration of the metal ion. It was observed that dead and live biomass efficiently removed copper at 30 min at an initial pH of 5.0....

Equilibrium experiments of chromium(III) biosorption by microalga (Spirulina sp.) and macroalga (Pithophora varia) were investigated in this paper. Influence of the following process parameters was studied: pH, biomass concentration and temperature. The equilibrium of the process was described with Langmuir equation. The model parameters were determined at various process conditions. The best o...

Biosorption of heavy metals by various types of non-living (microbial) biomass appears as a very cost-effective new alternative for decontamination of metal bearing effluents. The understanding of metal biosorption mechanisms has progressed to the point where the process is being readied for scale up and field applications. Packed bed sorption columns is perhaps the most efficient equipment for...

The toxic heavy metals cause soil and water pollution. include cadmium, lead, zinc, arsenic, chromium, nickel, mercury, etc. There are physico-chemical methods for the removal of from contaminated soils water. biosorption technique is easy, eco-friendly economical bodies. work here describes study Langmuir kinetics by Aspergillus clavatus, oryzae fumigatus. fungi were isolated distillery spentw...

BACKGROUND Kinetics, thermodynamics and equilibrium of the removal of chromium(VI) ions from aqueous solutions by using chemically activated leaves of Ficus nitida were investigated. Adsorption runs were performed as a function of pH, mass of biosorbent, contact time, initial concentration of chromium(VI) ions and temperature. RESULTS The optimum conditions for maximum removal of chromium(VI)...

Biosorption on lignocellulosic wastes and by-products has been identified as a proper alternative to the existing technologies applied for toxic metal ion and dye removal from wastewater streams. This paper deals with utilization of typical low cost wastes and by-products produced in different food agricultural and agro-industries as biosorbent and reviews the current state of studies on a wide...

As a new category of persistent organic pollutants, polybrominated diphenyl ethers (PBDEs) have become ubiquitous global environmental contaminants. No literature is available on the aerobic biotransformation of decabromodiphenyl ether (BDE-209). Herein, we investigated the interaction of PBDEs with aerobic granular sludge. The results show that the removal of BDE-209 from wastewater is mainly ...