6. Summary
This paper provides the life cycle analysis of water supply management for a university campus in India. The environmental impact of the water supply management is described in the respective impact categories.
When considering the input data that has been used for the LCA, it must be clearly stated that many information have been estimation of the personnel working at the case university. Wherever it was not possible to obtain the respective data, values from relevant literature have been used to fill the gaps.
From the results it can be stated that the tap water in academic and residential buildings is the main source of impacts. The main impact in this category is due to the energy used for groundwater extraction and water wastage in reverse osmosis treatment (RO). The study shows that the use of treated water for gardening activities will reduce the environmental impact of the university by almost 25%. The university has already started to provide a separate line for supply of treated water for the gardening activities. This study is based on the peak demand of water during summer when the maximum temperature reaches 46 degree centigrade. The demand during the winter period will be less as the minimum temperature almost reaches 4 degree centigrade.