Biotechnologie et biomatériaux

Abstrait

Removal of Toxic Heavy Metal Ions from the Dye Industries Effluents by Using Isolated and Dried A. Niger Biomass Material - The Spent Biomass Briquetts Used as Fuel Material for Small Furnacess - An Alternate Energy Approach: PART ?I

Dr. M. Subas Chandra Bose

The present Investigation is focused to removal of the heavy metal ions of Cupper, cobalt, zinc, cadmium, chromium, mercury and arsenic toxin using the technique of bio sorption potential of the heavy metal resistant fungal biomass Aspergillus niger isolated from Dye manufacturing and dying industry effluents. The dried and briquetting fungus biomass has been utilised to optimize the different parameters like contact periods, the concentration of metal ion at initial, pH, the biomass loading etc. The heavy metal ions removed is estimated by using various chemical methods was studied and recorded. The maximum of 91% Cu and other metal oxides was from in 5 mg/L starting load of Cu and other heavy metal concentration by using dried Aspergillus Niger biomass absorbent materials. The total maximum % removal of Copper and other heavy metals using the well grooming Aspergillus Niger was detected out to be 91 %. Then the characterization studies were carried out by using Scanning Electron Microscopy and EDAX analysis for copper and other individual heavy metal separately as well as all for all mixed aqueous toxic solution. The Copper heavy metal was detected to be desorbed effectively by using 0.1Molar HCl and was found to be 89 % and the reuse of the Sterilized dried fungus biomass has been showed 90.72 % Cu removal and presented all estimated efficiencies of biomass. The spent Biomass briquetts can be used as fuel material for small furnaces and other heavy metal results are also indicate the same level of removal as individual and mixed aqua solution also, which will be presented as part - II of this investigation.