IJCRTICGT082 International Journal of Creative Research Thoughts (IJCRT) www.ijcrt.org 621 AbstractThere is many domestic wastewater treatment processes in use today. Rotating biological contactors (RBCs) constitute a very unique and superior alternative for biodegradable matter. Ph, BOD and COD removal requires very less area, low energy consumption, short start-up, low operating and maintenance cost and high treatment efficiency. The present study of RBCs model and results focused on parameters that affect performance of the unit like Detention time, rotational speed, influent and effluent waste water characteristics. biofilm formation on the media and change in the effluent characteristics were studied for different parameters. Present study was under taken to analyze the feasibility treatment of waste water by using combinations within the RBC unit fitted with various operating conditions. In all, 10 combinations of discs were studied to judge the performance of treatment through RBC units. The unit was divided in to two identical stages and discs were arranged parallel to each other. Discs were immersed 40% in the water. The Rotating Biological Contactor (RBC) system was fed with waste water from various localities. Comparing the result obtained for reduction in BOD and COD.
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