Using the sun to purify drinking water is a great solar project for the do-it-yourself. A solar-powered purification system the size of a microwave oven can yield up to 3 gallons of purified drinking water on a sunny day. Here’s what you need for a basic solar powered water purifier like the one shown in the figure: Wooden or sheet metal enclosure Reflective material like aluminum foil Black paint, used for barbeque ...more »
Solar Thermal Pure Water Distiller(2) 1.Solar Thermal Water Distiller (STWD) Basic concept: What is distillation? The action of purifying a liquid by a process of heating and cooling Therma Energy:Form of heating by employing electric heating or fuel burning or solar heating Solar Energy: Solar radiation is a form of renewable energy that is abundant and accessible in many areas in the world.Sunlight with wavelengths ...more »
Basic concept: What is distillation? The action of purifying a liquid by a process of heating and cooling Therma Energy:Form of heating by employing electric heating or fuel burning or solar heating Solar Energy: Solar radiation is a form of renewable energy that is abundant and accessible in many areas in the world.Sunlight with wavelengths of 315-400 nanometers (nm) on the ultraviolet (UV) range of the electromagnetic ...more »
The main source of drinking water must be protected from deliberate pollution and spread of disease like guinea worm. The water is shared with animals, and is used by humans for cooking and drinking in the villages of Africa. Our solution to this program is to integrate a Sun-powered Water Well into the villages of Africa. This Water Well is eco-friendly and environmentally safe. As opposed to similar Merry-go-round ...more »
The Africans water supplies are facing new threats; affordable, advanced technologies could make a difference for millions of people in Africa. Lack of clean water is responsible for more deaths in Africa than war. About 1 out of 6 people living today do not have adequate access to water, and more than double that number lack basic sanitation, for which water is needed. My idea is to suggest a technological ...more »
The Solar Mini Grids for communities provide an ultimate solution to (i) Energy poverty (ii) Availability of safe drinking water for domestics purposes (iii) Answer food insecurity and nutrition problems in rural areas (iv) Mitigate continued emissions of Carbon dioxide into the atmosphere (carbon foot-print) by use of solid fuels thereby combating Climate Change. Solar Energy is the most abundant source of renewable ...more »
An Australian company, F-Cubed has designed a magnificent portable Solar Water Purification and DESALINATION plant that has no mechanical parts or filters to change.
Simply pour in water in the one end and clean water comes out the other side... up to 20 liters a day can be desalinated.
After discussions with a colleague with extensive experience in ground water research and borehole pumping projects, I learned that ground water extraction by means of solar powered borehole pumps have been proven quite successful in providing a considerable quantity of fairly clean, drinkable water to farms and rural communities. It is also a fairly simple system that works independently, requires little maintenance; ...more »
This simple technique requires only a few plastic bottles and sunlight. Firstly, collect several bottles (0.3 to 2.0 litre) made of clear plastic, remove all labels and wash them thoroughly. Fill the bottles with water of low turbidity and shake for about 20 seconds to aerate the water. Expose the bottles to the sun by placing them on a roof or rack for at least six hours (if sunny) or two days (if cloudy) . The water ...more »
This method involves the construction of a borehole with a pump that uses solar energy to power it. The pumped water is plunged upwards into a reservoir tank after passing through four ultra filters which are installed near the tank. A small tap connected to a pipe coming from the tank is used for easy access of the water. The ultrafilters ensure removal of disease causing pathogens before the water enters the tank. this ...more »
Ugandans lack clean water for their domestic activities including agriculture, livestock, industries and others yet there is plenty of sources of water like springs, lakes, rivers and groundwater. The problem is not that there is no water, it is because people do not have ways of delivering water from sources to their point of use. So, the low cost irrigation project (Makerere University, CEDAT) manufactures solar water ...more »
We can very well see that there are some areas in Africa that has rivers but lack the means to connect these rivers for the use of its water in house holds and farms. This is because they lack electrical power to aid in the activity. Solar water systems use the power of the sun to drive a submersible electric pump and are ideal for boreholes with a high yield. The pumps I am setting on is the - helical rotor pumps - ...more »