• J. JAYACHITRA
• E. BABU

A biological material for the removal of heavy metal ions from waste water is important due to its extreme toxicity towards aquatic life and humans. Micro organisms are being increasingly studied for the removal of heavy metal ions from aqueous solution. In this work, Aspergillus Nigerpowder was taken as a biosorbent for the sorption of Copper(II). The various parameters like initial metal ion concentration, initial pH, temperature and biosorbent dosage were studied in a batch reactor. Equilibrium was reached after 24 h of contact time. The optimum values of initial copper concentration, initial pH, temperature and biomass loading are found to be 50mg/l, 4,30°C and 5g/l . Under this optimised condition, a maximum percentage removal of 91% and specific uptake of 11.2mg/g was obtained for Cu (II) sorption.

Biosorption, aspergillus Niger, initial concentration, percentage removal, uptake of metal ion, etc.

"BIOSORPTION OF COPPER (II) BY IMMOBILIZED ASPERGILLUS NIGER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.452-459, May-2019, Available :http://www.jetir.org/papers/JETIRBP06079.pdf

"BIOSORPTION OF COPPER (II) BY IMMOBILIZED ASPERGILLUS NIGER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp452-459, May-2019, Available at : http://www.jetir.org/papers/JETIRBP06079.pdf