Ceramic water filter (CWF) in not new way of filtering water. In ceramic water filter the ceramic material is used to filter water from dirt, dust and bacteria and mostly Diatomaceous Earth, a fossil substance is the core of the ceramic filter. Filter with the pore size of .01 micron to .45 micron is considered bacteriologically sterile and one with pore size of .45 micron to 1.0 micron is bacteriologically safe.
To filter water, the water is first contained in the container then it passes through the filter,leaving behind any particulate or molecule with larger size than the water molecule.
Ceramic water filter with silver is more efficient as they are capable of killing or incapacitating bacteria that a normal ceramic filter cannot. Also with silver, algae and mold cannot grow on the body of the filter.
Types of Ceramic Filters
- Pot Type Ceramic Water Filter
- Candle Type Ceramic Water Filter
In every kind of this filter there is one top of ceramic pot and a container for water below, which is fitted with a tap. Water is poured into ceramic top and from there the water passes through the minuscule holes of the ceramic leaving behind the contaminants. These contaminants are then cleaned with brush and water. Candle type ceramic filter has the additional active carbon to absorb chlorine. This type of filter needs regular replacement as clogging occurs on carbon leading to its inefficiency.
Also you can get the portable ceramic filters like MSR Miniworks and and in-line ceramic filters. The former needs manual pumping to work.
Although you can remove particulate by using the ceramic water filter but if you talk about chemicals then these water filters are not meant to do this. With the high-performing activated carbon core the performance of the filter reduce metallic and organic contaminants can be increased but to remove them completely there are other option like reverse osmosis water filter that is very efficient in removing these.
Ceramic material is very brittle so any harsh handling can lead to hairline cracks that reduces the efficiency.
Role of Potters For Peace in Ceramic Water Filters
This is the cheapest way to filter water. Even where technological advanced safe drinking water cannot reach at this point in time the use of CWF is recommended. Potters for Peace is one such group that assist in the production of colloidal silver-enhanced ceramic water purifier. The reason behind this is that there is close to 1.7 million deaths each year because of diarrhea that is caused by drinking unsafe water. The U.N.’s Millennium Development Goal is to reduce the number of halve by 2015. To achieve this goal about 125,000 people needs to be connected to safe water which is bit difficult to achieve. Here Potters for Peace, a member of the World Health Organization is playing a major role by making and promoting the use of ceramic water filter in remote areas. First of all ceramic pot with terra-cotta clay, sawdust or rice husks is made. This is then heatedat 860 deg. C and treated with colloidal silver. These ceramic water filters are made by the localities and sold at local cost of production.
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