• Dr .P. Gajalakshmi
• Anuradha Singh

This study was carried out to evaluate the removal of heavy metals chromium in effluent waste water by surface active agent. Formthe soil samples collected from mechanical shed in and around Karur, Tamilnadu, Biosurfactant producing bacterium Pseudomonas spwas isolatedRemoval of Chromium using crude oil utilizing bacteria was tested. Growth of bacteria on crude oil under shaking condition was studied. Biosurfactant activity was carried out by oil displacement, hemolytic activity and emulsification index. The experimental data reveals that, out of 5 oil tolerant bacteria, S4 only found to be oil tolerant and biosurfactant producer. The isolate is a hemolytic, Gram negative rod showed maximum oil displacement activity than other tested strains. The reduction property of crude tested onleather tannery effluent shows decreased concentration of hexavalent chromium. Toxicity of treated effluent on seed germination and vigor index showedenhanced germination and plant growthpotential evidenced thatthe treated effluent is free from chromium 6+toxicity.

Chromium, Biosurfactant, Citrobactersp, Toxicity,Vigor index

"Application of Biosurfactant producing Pseudomonassp for chromium reduction on tannery effluent and its effect on Agriculture", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 11, page no.906-913, November-2018, Available :http://www.jetir.org/papers/JETIR1811C38.pdf

"Application of Biosurfactant producing Pseudomonassp for chromium reduction on tannery effluent and its effect on Agriculture", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 11, page no. pp906-913, November-2018, Available at : http://www.jetir.org/papers/JETIR1811C38.pdf