Ceramic water filtration has been available commercially for about 200 years. It was originally mass-manufactured in England to prevent the outbreak of cholera. Since then, ceramic water filtration has seen continuous improvements and it is still used to solve the issue of unsafe drinking water around the world. SAFE Water Now facilitates the manufacture and distribution of a ceramic water filter that has been adapted for third world use. The most effective standard for commercial ceramic water filter technology is incorporated into the design and best practices are used to manufacture a high quality and affordable household water treatment option.
The SAFE Water Now filter tested at a 99.99% microbiological effectiveness rate with a life of at least five years. The technology of the SAFE Water Now ceramic water filter is simple, effective, and, sustainable. A round-bottom ceramic pot is made from a mixture of clay, a combustible material, and colloidal silver that enables bacteriostasis and microbiological effectiveness. Any agricultural waste such as sawdust or cornhusks can serve as a combustible additive.
After the clay and combustible have both been sieved through a fine mesh, they are mixed together with colloidal silver powder and water until a homogeneous mixture is formed. The mixture is then molded into the pot shape with a rim using a filter press. It is then kiln-fired to about 1000 degrees Celsius, which burns out the combustible material and leaves micro pores coated with the silver to purify the water. During the firing process, about ½ inch (10mm) of activated charcoal is produced within the filter to improve taste and color. The finished filter is placed in a food-grade plastic storage bucket with a spigot at the bottom for dispensing the filtered water. A lid is placed on top of the filter to prevent contamination.
The user pours source water, such as from a stream or pond, into the ceramic pot, which filters it into the plastic bucket at a rate of 1 to 3 liters per hour, depending upon the volume of water in the filter. A single filter can provides enough safe drinking water for up to 6 people.
When contaminated water is poured through the SAFE Water Now ceramic water filter, it is purified in three ways:
1.3 micron pore size filters out larger dirt particles, larger bacteria, and parasites.
Silver impregnation produces a hostile environment for bacteria, preventing any bacteria present from reproducing; the bacteria soon die.
½ inch of activated charcoal improves the taste and color of the water.