Evaluation of some Species of Aspergillus for their Biodegradation capability to Degrade Silk Industry Effluent of Reservoir Khajua Lake at Mubarakpur, Azamgarh, (U.P.)

Afroz* and A.K.

P.G. Department of Botany, S.M.M. Town P.G. College, Ballia – 277 001. India.

ABSTRACT

The present study was carried out to observe the biodegrading character of Aspergillus niger, Aspergillus aculatus and Aspergillus flavus on the hydrological parameters pH, alkalinity, Do, BoD, CoD and hardness. Dyeing processes in silk industries release dyes and other chemicals in nature. Biodegradation of such effluent from Khajua lake at Mubarakpur was conducted with respect to the above parameters. These parameters were estimated at 50%, 75% and 100% concentrations of the effluent at three different time intervals 24 hours, 96 hours and 120 hours.
The results of the experiment indicate that the standard values recommended by WHo for these parameters were approximated after 120 hours of the experiment by the treatment with the microbes under study. The biodegradation due to the microbes was found maximum at 50% concentration of the silk industry effluent while it was minimum at 100% concentration. The use of Aspergillus niger, Aspergillus aculatus and Aspergillus flavus was found satisfactory for purification of silk industry effluent.
Keywords: Keywords: Aspergillus, biodegradation, silk industry effluent, Khajua lake.