Different Corrosion Protection Technologies for Energy Recovery with Mini-Hydro Turbines in Brackish Water Desalination Plants

Abstract

Brackish groundwater makes up a portion of the total amount of water stored in aquifers. Brackish groundwater desalination holds promise as a water supply strategy. It offers opportunities such as providing a viable water resource where other supply options are not readily available. Brackish groundwater desalination is only one tool in the toolbox for meeting water supply needs. One must take care that it is the most appropriate, environmentally cost effective tool for the specific location it is implemented in. Most machines that make electricity need some form of mechanical energy to get things started. Mechanical energy spins the generator to make the electricity. In the case of hydroelectricity, the mechanical energy comes from large volumes of falling water or running water under pressure such as reject brine from R.O. desalination plants. A small-scale hydro system usually consists of turbine, which is made to spin by jets of high velocity water. The turbine spins continuously, as long as there is water to drive it. The recovery of lost energy in RO desalination plants through hydro-turbine systems is a big aim to lower its cost and its large scale application in agriculture and irrigation field