1*,2,3Assistant Professor, M.V.G.R. College of Engineering, Vizianagaram, Andhra Pradesh-535005, India ---------------------------------------------------------------------***-------------------------------------------------------------------Abstract-Desalination is a process which is used to convert the salt water or saline water into usable water using different techniques. The energy utilize...

This paper evaluates life cycle Greenhouse Gas (GHG) emissions of a Seawater Reverse Osmosis (SWRO) desalination plant and assesses its performance under three power supply scenarios. A Life Cycle Assessment (LCA) analysis is conducted for a plant located in Perth, Western Australia (WA). Input and output flows of SWRO plant are based on literature and Perth desalination plants. The Simapro Aus...

With more than a billion people lacking accessible drinking water, there is a critical need to convert nonpotable sources such as seawater to water suitable for human use. However, energy requirements of desalination plants account for half their operating costs, so alternative, lower energy approaches are equally critical. Membrane distillation (MD) has shown potential due to its low operating...

Dry areas near the sea can obtain fresh water through solar distillation of saline sea water resources. However, these solar distillation sites produce wastewater as a result of desalination of sea water with high salt concentration. Waste must be disposed of with the least effect on the receiving environment (sea, in most cases). Initial dilution and its characteristics play important roles in...

This paper summarizes a study of the economic and environmental performance of Reverse Osmosis (RO) desalination powered mainly with photovoltaics. It is based on up-to-date cost data for photovoltaic power plants and RO desalination plants. A case study is presented of a plant producing 6550 m water per day on the coast of the Red Sea in Saudi Arabia powered by 3-MWdc PV or HCPV capacities. We...

Solar stills are very simple to construct and to operate but their efficiency and productivity are fairly low. To increase the yield from stills different methods were adopted. In this paper, an experimental investigation on single and double effect desalination systems are reported and effects of some parameters such as water depth, input radiation intensity and salinity on the productivity of...

With an increase in demand of freshwater and depleting water sources, it is imperative to switch to seawater as a regular source of water supply. However, due to the high total dissolved solid content, it has to be desalinated to make it drinkable. While desalination technologies have been used for many years, mass deployment of such technologies poses a number of challenges like high energy re...

Cogeneration of electricity and desalinised water for water production is an accepted principle in many countries. However, there is an opportunity to extend the concept to obtain greater efficiencies by reassessing the desalination paradigm. The new paradigm considers desalination as only part of the saline water processing chain. It looks at value-adding opportunities through further processi...