Biodenitrification of wastewater by using F.B.B.R.Technology and by the use of waste roofing construction tiles

Many types of wastewater treatments are available now a day. Out of these various wastewater treatment methods available Fluidised Bed Biofilm Technology is a very recent innovation in the wastewater treatment. This study mainly focuses on the removal of nitrate from the wastewater i.e. biodenitrification of wastewater. In this study experiments on a Fluidised bed biofilm reactor set up are carried out by the use of waste roofing construction tiles (specially crushed roofing mangalore tiles) as a biofilm carrier media which is used as a substitute over the conventional high cost biofilm carrier media. The FBBR set up is run at different varying hydraulic loading rates and the concentration of the nitrate is measured both at the inlet and outlet end of the set up along with measuring the other chemical characteristics such as COD and pH. Based on these results graphs are drawn and results are compared with other biofilm carrier material. Results states that the use of waste roofing construction tiles can be used with high advantage in the FBBR technology. The maximum average nitrate removal efficiency obtained is 59.02% at an HRT of 5 minutes. Hence use of this technology and biofilm media proves a sustainable option for conventional wastewater treatment.