Abstract

Abstract: Water in India is primarily a state subject. Water is important factor in our life. It is fact that if water is used therewill be waste. India as a developing country also faces water crisis. Sequencing batch reactors (SBRs), due to its operationalflexibility and excellent process control possibilities, are being extensively used for the treatment of wastewater which nowadaysis fast becoming contaminated with newer and more complex pollutants. It is also possible to include different expanding arrayof configurations and various operational modifications to meet the effluent limits which are also continuously gettingupgraded. This article provides basic description of SBR process along with its functional and physical variants that lead toimprove the removal of nutrients and emerging contaminants. The significance of selectors and various recent advancementsin the application of SBR has been discussed along with the possibilities held by SBR process in the treatment of wastewater ofdifferent origins and composition to produce effluent of reusable quality.Keywords: Sequential Batch Reactor (SBR), Water Reuse, Nutrients.