SALONI GUPTA*, ANAMIKA VERMA, JYOTI SHARMA, SUNITA KUMARI, PANKAJ SHARMA, MUKESH KUMAR, SOHAN LAL AND NARSI RAM BISHNOI
Department of Environmental Science & Engineering, Guru Jambheshwar University of Science & Technology, Hisar125 001 (Haryana), India
*(e-mail : firstname.lastname@example.org); Mobile : 9991091374
(Received : June 13, 2018); Accepted : July 28, 2018)
The aim of the present work was to study the potential of two SRB consortia for the removal of high concentration of chromium from simulated wastewater. The SRB inoculums obtained from soil (S1) and sludge (S2) were cultivated on Postgate B medium containing lactate as carbon source. Both S1
and S2 consortia showed high percentage removal of chromium at pH 6.95 and temperature 32°C but S1 was able to withstand higher chromium concentration (up to 500 ppm). The effect of chromium concentration on the growth and activity of SRB was studied through pH and oxidation reduction potential. The precipitates composition was analyzed by SEM-EDX.
Key words : Sulphate reducing bacteria, chromium, simulated wastewater, EDX