1 “Analysis and Design of an Institutional Waste Water Management Scheme” R.Ranjon Roy a ,T.R. Sreekrishnan b ,B. J. Alappat c a M.Tech student, Department of Civil Engineering, IIT, Delhi 110016, India b Professor, Department for Biochemical Engineering & Biotechnology, IIT, Delhi 110016, India c Professor, Department of Civil Engineering, IIT, Delhi 110016, India Abstract: Environmental pollution has become a burning issue in today‟s world. Water is becoming a rare commodity and many believe that future wars might take place for pure drinking water. Recycling and recovering of wastewater becomes very important, especially in urban areas. Like many educational / research institutions, IIT Delhi also generates both domestic and laboratory wastewaters. Laboratory wastewaters contain different chemicals used in the various laboratories of the Institute. Presently both kinds of wastewaters are getting mixed up and this mixed waste water is going to the municipal sewerage system. With a view to treat and recover water from the sewage, IIT Delhi is planning to separate these two waste waters and construct a STP for its sewage and another ETP for its laboratory waste water. This paper describes the details of the analysis carried out recently on the wastewaters and present a design for the STP based on Sequencing Batch Reactor (SBR) concept. Keywords: Sewage Treatment Plant (STP); Sequencing Batch Reactor (SBR); Pumping units 1. Introduction In India, there are lots of research institutes and laboratories. In recent times, institutional waste water has become a matter of concern because of its potential hazardous effect. A satisfactory level of study to minimize this problem is yet to be reached because of various limitations. Many institutes discard their waste water directly to the surroundings as they do not have proper sewage treatment system. The raw institutional wastewater contains various toxic organic and inorganic compounds, chemicals, pathogenic microorganisms etc. If they are released into the environment without any treatment, our natural water bodies will be severely affected by them. As we cannot deny the contribution of educational institutes, industries and agricultural practices in our life, we must find a solution to minimize the pollution. For this, the wastewater must be treated before releasing into the environment. Sewage treatment is a process that removes unusual contaminants from wastewater and brings back it to the environment for reuse. The treatment includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants. Its objective is to produce a treated effluent and a solid waste (sludge) which can be reused or discharged into the environment safely. However, the choice of