Locally produced ceramics have been used to filter water for hundreds of years.
Efficacy of ceramic filters.
Disinfection efficiency results from subsequent batches were about 1 log lower with some results below 1 log.
This makes them ideal for use in developing countries and portable ceramic filters are commonly used in backpacking.
These filters produce 2 liters hour and can serve the daily drinking and food needs of six people per who recommendations 5.
Ceramic is a natural media filter and does not add anything to the water during the filtration process.
What ceramic filters don t remove.
Ceramic water filters cwf are an inexpensive and effective type of water filter that rely on the small pore size of ceramic material to filter dirt debris and bacteria out of water.
It also does not filter out minerals like calcium and magnesium meaning there is no need to pair the filter with a remineralizer if you want to preserve the mineral quality of your water.
10 6 cfu ml passed through the filters independent of filter history.
Laboratory testing has shown a 90 99 reduction in viruses brown 2007.
Using the best ceramic water filter removes a number of harmful contaminants from water.
This longevity is due to their effectiveness.
This system also provides safe storage until the water is used.
Backcountry grade microfilters are designed to remove contaminants down to 0 2 microns and should meet nsf protocol p231 and or the u s.
Ceramic pot filters are usually made from clay mixed with a combustible material like sawdust or rice husks.
Health benefits studies have shown a 60 70 reduction in diarrheal disease among user of ceramic water filters 7.
Iv filters maintained effectiveness over long periods up to 44 months in field use.
Field trials of the effectiveness of ceramic water filters in cambodia over time showed a 46 reduction in diarrheal disease between filter users and non users a 95 1 average and up to 99 99 reduction of e coli in drinking water brown and sobsey 2006.
Epa s guide standard and protocol for testing microbiological purifiers for removal of bacteria and protozoa.
Coli disinfection efficiencies for the first batch of spiked water ca.
Ceramic filtration cdc pdf pdf 2 pages.
Locally manufactured ceramic filters have traditionally been used throughout the world to treat household water.
Currently the most widely implemented ceramic filter is the potters for peace external design.
Under laboratory conditions ceramic water filters were found to yield 3 4 log e.
They have been around for a long time.
This includes things like cysts protozoa turbidities and bacteria.
Some filters in outdoor shops are designed to remove only unpleasant tastes from tap water.
Water is poured into a porous ceramic filter pot and is collected in another container after it passes through the ceramic pot.
V declining use of the cwps after implementation was observed due to breakages of the ceramic filter elements coupled with limited availability of replacement parts in.
