• Anjali Gupta

Dual Microbial treatment on tannery effluent is used to remove Chromium was evaluated in this study, using chromium resistant Pseudomonas fluorescence and Tricoderma harizanum isolated from leather processing site. Initially resistant strains were isolated by plating method, under 1000 ppm concentration of potassium dichromate. Efficiency Cr VI reduction on bacterial and dead fungal mat was tested under aerobic condition. Chromium removal was noted by DPZ spectro-pohotometric assay and effluent characters were tested. The results shows that reduction of chromium was significant by bacteria and fungi alone and more effective maximum reduction by combined treatment estimated as 96% chromium VI and chromium III. The concentration of Cr6+was reduced as Cr3+ and estimated as 40 %by bacteria and 30 % by fungi alone. Further the chromium 6+was 96%reduced by dual bacterial- fungal treatment. The combined treatment also shows BOD and COD greatly reduced,compare to independent treatment. The treated effluent also showed significant result on seed germination indicates that it’s free from chromium toxicity as Cr VI is reduced. This study confirms that the isolated bacteria and fungi were potent novel isolateswhich remove hexavlant chromium efficiently.

Chromium, Pseudomonas, Fungi, toxicity

"Heavy metal chromium removal from effluent by using Pseudomonas fluorescence and Tricoderma harizanum– A dual microbial treatment approach", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.1170-1175, December-2018, Available :http://www.jetir.org/papers/JETIR1812D68.pdf

"Heavy metal chromium removal from effluent by using Pseudomonas fluorescence and Tricoderma harizanum– A dual microbial treatment approach", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp1170-1175, December-2018, Available at : http://www.jetir.org/papers/JETIR1812D68.pdf