Studies on the Sewage Treatment for Methane Fermentation, Denitrification and Phosphorus Removal by Rotating Biological Contactor.

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The Influent Domestic Sewage BOD5 and TOC ranged from 50 to 140 mg/1 and 25 to 70 mg/1 respectively. On the Basis of the Results of this Investigation it was Concluded that :1) Maximum TOC Removal Rates of 90% at 35ﾟC of Waste water Temperature and HRT 6 hours, 80% at 13ﾟC. 2) Nitrification and denitrification Rates of 95% at 13ﾟC to 35ﾟC of Waste water Temperature and HRT with from 6 hours to 3 hours. 3) Attached Bacteria bring up Methanosarcina and Methanobacterium. 4) Phosphorus Removal Rates of from 80% to 95% at from 13ﾟC to 35ﾟC of Waste water Temperature and HRT with 6 hours by Iron plate rotating Disk. 5) Disc Material have Suitable for Ceramics than Polyethylene on Methane Fermentation. 6) Disc Material have Most suitable for Porosity Diameter of Ceramics is 400 mu M on Methane Fermentation.