The company Aqsep Ltd of Denmark produces and develops state of the art desalination systems which are based on the reverse osmosis principle. The desalination systems can be used for both brackish and sea water and no pressure are necessary. At the same time, the systems have integrated energy recovery systems which lowers the power consumption from 6-12 kWH/m3 of water produced to around 3 kWh/m3.
Water U-Can Trust – A sustainable new sidewalk located solar powered toxin-free drinking water Street Vending Dispensers (SVD)
Water U-Can Trust aims to professionally prototype, manufacture, and install our low energy, iconic, solar powered SVD units located on pavements to provide quality drinking water for the general public.
The project consists of modular and semi-mobile photovoltaic solar cells power supply system with a capacity of 45 K Watt/hr working during the day hours only to reduce the cost of energy storage. The generated electrify is used to operate a high efficient RO desalination plant for brackish groundwater treatment. The capacity of each RO unit is 5 m3/hr with a recovery ratio of 60%. The system is provided with an ultraviolet filtration and disinfection system. The raw water is abstracted from a groundwater with a submersible pump operated by the solar energy also. Various alternatives and options for brine water discharge were evaluated and it was found that the optimal solution is use evaporative lake. However and some areas where the raw water salinity is less than 10,000 the produced brine water can be used for irrigating native desert plant species (salt tolerant species). It has been found that this system is feasible and the consumption of the energy ranges between 3.0 to 5.0 Kwatt/m3.
The State of Qatar has embarked on a programme, called “QATAR NATIONAL FOOD SECURITY PROGRAMME (QNFSP)”, by linking Solar energy, Seaawater Desalination and Agriculture development to enhance food security and simultaneously augmenting the water security will allow Qatar to establish a global reference project for “green” agriculture policy for arid states worldwide.
KAHRAMAA has contracted for Engineering and Consultancy services to provide the required consultancy services to support and assist in its tasks for the Qatar National Food Security Program (QNFSP) effort to assure the provision of the required amount of water and electricity for agriculture purposes in Qatar.