Volume No. 9 Issue No.: 3A Page No.: 1006-1009 January-March 2015




Mangesh Gulhane and Padwekar Karishma G*.

Department of Civil Engineering, Government College of Engineering, Amravati, Maharashtra (INDIA)


Received on : October 10, 2014




A study was carried out to check the feasibility of treatment of domestic wastewater with attached growth system with provision of some modification in the conventional rotating biological contactor. Effort is made to develop treatment option to treat domestic wastewater by using fixed film biological reactor with rotating paddles. For this purpose, a laboratory scale model was developed comprising of horizontal and vertical shaft on which rotating paddles were fitted instead of disc. The paddles were packed with artificial media to enhance the efficiency. The current experimental study of fixed film biological reactor with rotating paddles revealed that, the maximum removal efficiency for BOD and COD was observed to be 85% and 80% at an optimal rotational speed of 7 rpm and detention time of 24 hours. The present paper discusses various options adopted for operation and treatment of wastewater using fixed film biological reactors with rotating paddles


Keywords : Attached growth, Paddles, Rotating biological contactor, Total solid, Wastewater