Physics and Chemistry of the Earth, Parts A/B/C, 31 May 2012
Manufacturing a Low-Cost Ceramic Water Filter and Filter System for the Elimination of Common Pathogenic Bacteria
J.J. Simonisa, A.K. Bassonb
a Department of Hydrology, University of Zululand, KwaDlangezwa, P Bag X1001, KwaDlangezwa, 3886, South Africa
b Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa
One simple but effective way of making sure that water is of good quality is by purifying it by means of a household ceramic water filter. The making and supply of water filters suitable for the removal of suspended solids, pathogenic bacteria and other toxins from drinking water is therefore critical. A micro-porous ceramic water filter with micron-sized pores was developed using the traditional slip casting process. This locally produced filter has the advantage of making use of less raw materials, cost, labour, energy and expertise and being more effective and efficient than other low cost produced filters. The filter is fitted with a silicone tube inserted into a collapsible bag that acts as container and protection for the filter. Enhanced flow is obtained through this filter system. The product was tested using water inoculated with high concentrations of different bacterial cultures as well as with locally polluted stream water. The filter is highly effective (Log10 >4 with 99.99% reduction efficiency) in providing protection from bacteria and suspended solids found in natural water. With correct cleaning and basic maintenance this filter technology can effectively provide drinking water to rural families affected by polluted surface water sources. This is an African solution for the more than 340 million people in Africa without access to clean drinking water (WHO and UNICEF, 2008).
{ 1 comment… read it below or add one }
In this economy these days it is always important for things to be low costing. Thanks