Biosorption of Baftkar textile effluent.
Decolourization of wastewater from a textile plant by a marine Aspergillus niger was studied. The fungus was previously isolated from Gorgan Bay in the Caspian Sea. The kinetics of decolourization was studied by varying energy sources. The best decolourization was achieved when sucrose was used as source of carbon and energy. NH4+ ion was demonstrated to be the best nitrogen source. Color reduction was found to increase from 80-97% as inoculum concentration increased from 0.04-1.0 g/L. A minimum inoculum of 0.2 g/L is necessary to achieve decolourization. The optimal temperature for the growth of A. niger on Baftkar wastewater is found to be 30 degrees C. 90-96% colour reduction is achieved in 19-20 hr of contact of mycelium cell with the wastewater. Colour reduction in a continuous column reactor of 70% was obtained using treated mycelium (NaOH, 90 degrees C) after 1 hr.
Assadi
Mahnaz Mazaheri
MM
Biotechnology Center, Iranian Research Organization for Science and Technology, No.71, Forsat St. Enghelab ave, Tehran, Iran. mxmazaheriassadi@yahoo.com
Mazaheri
Maryam
M
Satari
Taher Nejad
TN
Noohi
Ashrafulsadat
A
Shahamat
Manoochehr
M
Levin
Morris
M
D001234:Aspergillus niger / Q000254:growth & development* / Q000302:isolation & purification; D001673:Biodegradation, Environmental; D003116:Color; D004396:Coloring Agents / Q000032:analysis*; D007492:Iran; D009792:Oceans and Seas; D013783:Textile Industry; D014865:Waste Disposal, Fluid; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000032:analysis*
D004396:Coloring Agents; D014874:Water Pollutants, Chemical