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The purpose of this research was considered about the physical characteristic of clay body for ceramic equipment preparation of the water filter for drinking by adding up with agricultural residues in order to open the pores at a temperature of 750°C and 800°C, for continuous comparison of the pore opening, and water quality by filtering in preparing the clay body for ceramic water filter. Using local clay body, including waste, sawdust, coconut husks and black husks are mixtures of clay body. Resolution of the local clay and waste ground was composed within an average of 35 meshes by using the maximum temperature 750°C and 800°C. The texture ratio of 15 formulas ratio was controlled by 70 % of local clay, waste ground, sawdust, and coconut coir, including 30 % of black rice husk. The research outcome of the property does not meet the criteria set at 750°C, qualifying for 800°C at combustion ratio of 11 and 12 meets the selection criteria. The strength is more than 2.5 Mpa, the shrinkage within 6%, porosity in the range of 27%, and water absorption within 19% respectively. The water quality test by using filtration through soil formula 11 of three major sources: surface water, piped water, and water from the Huai Mong showed turbidity before filtration 2 2 4 FAU respectively; after the filter has turbidity 1 2 2 FAU respectively. No coli form bacteria is found and the fecal coli form bacteria, both before and after the filter. The mixture ratio of 11, also 12 can be used in developing further research process
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