14.-Storm and wastewater renovation and reuse in urban areas exploiting soil aquifer system-Akshaydhara concept

Abstract

The Akshaydhara concept (Gupta and Sharma, 1996), has been examined in a typical urban context of Ahmedabad City. It has been shown that if the available high quality water resources were to be utilised only for potable purposes, we have plentiful. To meet the requirements on non-potable uses, if we could segregate and renovate and recycle the grey component of th edomestic wastewater, there would again be no shortage. Based on a set of new and recent experiments, it has been shown that shallow soil-Aquifer system can be used with advantage for renovation and recycling of the grey wastewater component. It has also been shown that there may be no adverse impact on salt balance on the groundwater quality, if artificial recharging of even 20% of the storm water runoff (or 10% of rainfall) can be added to the soil-Aquifer system.