In the current industrialized world, uses of batteries have gained importance as a result of its high performance and energy storage system. Though, battery was considered safe and produced less carbon foot print, it also has its ill effects such as heavy metal contamination in water and soil, which is also at its threshold to be addressed. Here comes the concern, about the elevated heavy metal concentration especially chromium in the environment and its health hazards exerted over all living organisms. Thus, as an approach towards the bio sorption of chromium from environment, fungal isolates obtained from soil samples of HEB effluent were screened for their resistance and efficiency. Among the 36 fungal isolates attained, Aspergillus was found to be most predominant in both eastern and western area, as well as more resistant to chromium even at 1000 ppm. On further optimization of pH, Temperature, incubation period, carbon source, nitrogen source and phosphorous, it concluded that medium with Glucose, malt extract and potassium dihydrogen phosphate at pH 5 showed significant growth and proficient absorption of chromium under static condition. The 18s rRNA gene sequencing of the effectual organism revealed to be Aspergillus niger (KY354579) with 99 % according to BLAST analysis.
Published Date: 2022-08-29; Received Date: 2022-08-01