• Dhaliwal
• MK
• Jain AD

Industrial process is a potential source of pollution and requires a specific treatment for the waste water produced. Flocculation is the most widely used process for treating the wastewater. The use of bioflocculant has attracted huge scientific interest because of their biodegradability and safety for ecosystems. In the present study twenty four bioflocculant producing bacteria were isolated from various industrial wastewaters, sludge samples, river water and soil on basal bioflocculant screening agar. During preliminary screening nine isolates were identified as effective bioflocculant producing micro-organisms, as they yielded more than 70% flocculation activity. The isolates SF 17 and TS 5 and their consortium were studied further for flocculant production. Various parameters like carbon source, nitrogen source, pH, temperature and inoculum dosage were studied to obtain the maximum flocculant production. Among the different carbon sources studied, sodium carbonate was the most favorable carbon source supporting a flocculating activity of 75%, 71% and 81% for SF 17, TS 5 and consortium respectively. Among the various nitrogen sources examined, the mixture [Urea+ Yeast extract+ (NH4)2SO4] proved to be the best nitrogen source with the highest flocculating activity of 68% 75% and 93% respectively. The optimum pH was found to be 7.0 for bioflocculant production. Also the bioflocculant was found to be thermostable at the temperature range of 37-100°C. An inoculum size of 2% (v/v) supported an optimum flocculating activity of 83%, 90% and 96% respectively.

STUDY OF EXTRACELLULAR BIOFLOCCULANT PRODUCTION FOR WASTEWATER TREATMENT

"STUDY OF EXTRACELLULAR BIOFLOCCULANT PRODUCTION FOR WASTEWATER TREATMENT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.53-61, May-2019, Available :http://www.jetir.org/papers/JETIRCB06008.pdf

"STUDY OF EXTRACELLULAR BIOFLOCCULANT PRODUCTION FOR WASTEWATER TREATMENT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp53-61, May-2019, Available at : http://www.jetir.org/papers/JETIRCB06008.pdf