TEMPORAL AND SEASONAL VARIATION OF NUST WASTEWATER

Abstract

Water is the basic resource for survival of living organism. With such a quick development globally, the supply and demand gap is getting bigger and bigger with each passing day. So development has become a problem for many countries and regions worldwide. Countries that have fresh water below 1000 m3 per person per year are classified as water scarce. Pakistan has annual rain fall of less than 250 mm. These problems have become worse since ground water reservoirs are also exhausted. MBR technology allows building up decentralized wastewater treatment plants in areas where large treatment plants are difficult to construct and operate. It provides improved health conditions due to almost bacteria-free effluent and the possibility of re-using the treated water. In this study, samples were collected from different locations within NUST H-12 campus. Dissolved oxygen, temperature and pH were investigated on site and for further analysis transported to laboratory for analysis. The chemical and biological characteristics of wastewater were analyzed and variations in concentrations of wastewater constituents in different seasons were investigated. On the basis of data collected, GPS-X software was used for modeling and simulation of pilot scale wastewater treatment plant to be installed in h-12 campus at NUST Islamabad. Different scenarios were run in GPS-X and establish the most suitable conditions for pilot scale MBR plant.