Paper Title
Demonstration of An Autonomous, Small Wastewater Treatment Plant with Solar Power Supply and Pumped Energy Storage with a Miniature on-Demand Hydro Electric Conversion Unit

Abstract
Untreated wastewater (WW) is a global environmental hinder that by correct handling may be turned into agricultural irrigation water resources. While the common WW treatment strategy is central regional treatment facilities, such a strategy is not optimal for many point sources. Such point sources are in locations where the required infrastructures and in particular energy are not available. If not treated to a sufficient level such anthropogenic pollution might degrade potable water resources and cause community illness. The proposed strategy relays on the development of an energetically self-sustained WW treatment plant (WWTP), as demonstrated with the full-scale (~400m3/day) Ariel University Dormitories WWTP. Such a system that may be erected in almost any place, on various scales and without the need for electric grid infrastructure, may be a benchmark in sustainable rural development both from local and global perspectives. The Ariel University Dormitories WWTP operates in an innovative biofiltration methodology enabling WWthird-stage treatment in less than half the energy required by conventional WWTPs. The WWTP is already installed with a photovoltaic system capable of supplying its daily energy demand, but not during the night and peak discharge time. To resolve this gap a pumped storage system is under construction that will store treated WW, which will be pumped by surplus solar power to a high reservoir, to be distributed for gravitational irrigation and to produce hydroelectrical power to operate the WWTP when solar power is insufficient