Spatially Constrained Treatment of Raw Sewage to Produce Water for Domestic Use

Abstract

Water is rapidly becoming one of Pakistan’s most precious resources, much more than any hard currency and strength of arms. As the population grows and mismanagement of water sources continues, Pakistan shall move on from a “water-stressed” country to a “water scarce” country. Aiming to resolve just one of the issues with managing water, this project aims to provide an alternative to the average, water-starved inhabitants of Pakistan and provide them with a fool proof method to have a renewable source of clean water to use. Treating sewage is something that is carried out by municipalities all over the world and hence isn’t something new. However, there exists no system in Pakistan that allows for households to treat their waste and use it again, and this is the goal of this project. By going over the various steps of primary, secondary and tertiary treatment, aim to bring renewable water sources into people’s lives. However,this is not possible using conventional methods and a radical new approach is needed. These methods reduce the time and the space taken to treat water by many factors so that a single unit may fit in a small apartment as well, targeting those who have theleast amount of resources to fix their water problem. A prototype consisting of various, state of the art settling tanks, bio reactors and sterilization units was assembled and a continuous treatment process was put together.