Improvement of rural water to fight water borne diseases using low cost bio-sand filters
Bone char filtration Not all filters remove heavy metals or other toxins from the water, but crushed and charred animal bone can. And in areas where they occur in the water, removing them is a good idea. Chronic arsenic exposure, for example, can cause skin cancer, bladder, kidney and lung cancers, gangrene and possibly diabetes, high blood pressure and reproductive disorders. Uranium in the drinking water is linked ...more »
Ozonation of Drainage water for Drinking and Farming What is ozone? Ozone (O3), also known as activated oxygen contains three atoms of oxygen rather than the two atoms we normally breathe .Ozone is the best of nature's tools for cleaning the air, a unique and natural phenomenon that helps us in many ways. The ozone layer around the Earth protects us from the harmful UV rays of the Sun. The ozone in our atmosphere also ...more »
It is part of something I came accross which i think is a brilliant idea. Pls see below A Socially Responsible, Environmentally Sound and Economically Profitable Business Model . Today, more than 1.1 billion people worldwide do not have access to clean drinking water. Mainly poor people living in remote communities in developing countries suffer from contaminated water. In order to achieve the UN Millenium development ...more »
In Relation to most filtration methods, water is carefully introduced to one side of the filter, which acts to block the passage of anything larger than the pore size, typically bacteria, protozoa, and microbial cysts are removed Ceramic water filters may be treated with silver in a form that will not leach away. The silver helps to kill or incapacitate bacteria and prevent the growth of mold and algae in the body of ...more »
Reeds and water plants etc are good filtrators of river water, fence areas around the catchment areas to prevent animals polluting the water and collect filtered water in tanks.
this is a three step natural process of filtering water which is zero cost and 100% practical to any citizen in the world.
considering the economy , environment and availability of water and other resources in south Africa this process will be the most suitable method of filtering water in almost all the areas of Africa
Reverse osmosis produces one of the purest methods of water filtration, removing up to 99% of all contaminants from water. Water passes through a series of filters including an activated carbon filter for the removal of chlorine. After which the water passes through a semi permeable membrane that has the ability to remove and reject a wide spectrum of impurities, bacteria and contaminants from the water, producing ultra ...more »
While we’d love to provide the most advanced totally pure water supply for Africa, maybe one approach is to make a significant difference first with a simpler, mechanical method using locally available materials. The earliest means of purifying water that I’ve read about were sand filters, dating back to 1804 in England.* Is it possible to teach people in Africa to build their own sand filters, using discarded soda ...more »
This is a project I am currently working on for my Chemistry Honours degree. Using a clay-polymer nanocomposite for water filtration. It is well known that clay is a very abundant material especially in Africa, and it is also very cheap commercially.In comparison to activated carbon, clay is actually 20 times cheaper. Naturally clays are non-toxic and have very good adsorbent properties because of their already existing ...more »
This involves modification of Titanium Oxide by incorporating other metals into it. Taking small portion of the mixed compound and incorporating it to the clay, molding a pot like filter out of it, drying and burning at high degree. When cool the clay pot is placed on top of a another pot or bucket and both placed in the sun where the energy released kills the micro-organisms or reduces the metal ions.Titanium oxide acts ...more »
I've found a way to filter pond water using a converted washing machine. It is highly effective and easier to use than other systems For the past three years I have concentrated my time on improving a more enhanced filtration systemfor koi ponds, and water gardens. Other current systems prove to be time consuming, complicated, and inefficient. This system is safe and simple to operate, and completes the nitrogen cycle ...more »