Numerical simulation and operating strategy of a wind-powered electricity and freshwater production system - The case study of Agios Efstratios island in Greece

The rapid increase in global population and rising demands have resulted in a shortage of clean water, depleting several of the Earth's reservoirs, especially those that reserve fresh water. Just 0.007% of the water on Earth is used to hydrate and feed billions of people, as determined by the water balance of the planet. Water-stressed nations...

Analysis of a Wind Driven Reverse Osmosis Desalination System: Experimental Study Using a Pressure Exchanger Energy Recovery Device

With a fast growing world population, the lack of fresh water is one of the world’s biggest future concerns. Water stress can lead to conflicts, holds back economic growth and has a major impact on human health. Nowadays, more and more countries that lack fresh water sources are using the saline water from the oceans and desalinate it to produce...

Silica removal from presoftenend reserse osmosis brine using silica gel beads

Brine that is produced during reverse osmosis (RO) could be further concentrated by another RO step. In the absence of bivalent cations, silica is a limiting factor because a high concentration of silica can cause irreversible fouling of the membranes. To prevent silica scale formation during the further concentration of brine with RO, silica...

Re_Claiming Rome, Papal Arsenal: Tiberinus Brewery

This project seeks to reclame the Tiber for the City of Rome and in doing so will create a physical interface which blurs the boundaries between the river and land. The water of the river and a piece of the City's industrial heritage will be re_appropriated within this project for the creation of; a brewery, a performance venue, a social hub and...

Feasibility Study on Deep Seawater Solutions for Manado: ROTEC

Due to climate change and growing cities, water scarcity is becoming one of the futures biggest problems. On top of that, the population and prosperity of cities around the equator are growing fast. Meaning that the need for electricity, cooling and drinking water will grow fast in the following decades. ROTEC’s vision is that these growing...

Crossflow reversal effect on removal of RO particulate fouling: a comparison of two spacers

Worldwide fresh water scarcity is nowadays becoming a reality rather than a futuristic concern. Non-conventional sources of wastewater are being considered as a solution for this problem, since fresh water sources will not be sufficient to satisfy the world’s water demand in the following years. Extensive research is being done on different...

Concentrating Ammonium

This thesis provided an overview of the achievable ammonium concentrations, and the energy used to achieve these concentrations, by ion exchange, electrodialysis and reverse osmosis. The need for this overview arose during research for the N2kWh project, where one step in the process focused on increasing the ammonium concentration of (anaerobic...

Project Koh Tao: Tackling water shortage

Additional Master Thesis - This report serves to inform the local government of Koh Tao on the status of their current water system and advises on an alternative in order to make sure that future tap water demand can be met in a sustainable and reliable manner.

A PV Powered BWRO Desalination Installation with Energy Recovery and Hydro-Pneumatic Energy Storage

This MSc. Thesis project was performed at the Sanitary Engineering Department of the TU Delft as part of the Sustainable Energy Technology program. It is one of the unique research projects performed in the field of renewable driven Reverse Osmosis desalination, producing fresh water with only renewable energy sources as driving force. With the...