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THE EFFECT OF WATER CONDITIONING SYSTEMS ON COMMUNITY FLUORIDATED WATER

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Abstract

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ÀúÀڴ ûÁֽà ¸ð ±¹¹ÎÇб³ÀÇ ºÒ¼ÒÈ­ »ó¼ö¿¡ ´ëÇÑ ¿©·¯°¡Áö Á¤¼ö±â »ç¿ë½Ã ºÒ¼Ò³óµµÀÇ º¯
È­¸¦ ¾Ë¾Æº¸´Â ½ÇÇèÀ» ÇÏ¿© ´ÙÀ½°ú °°Àº °á·ÐÀ» ¾ò¾ú´Ù.
1. ûÁֽà ¸ð ±¹¹ÎÇб³ ±Þ¼öÀÇ Á¤¼ö±â »ç¿ë Àü ºÒ¼Ò³óµµ´Â 0.793¡¾ 0.010ppmÀ̾ú´Ù.
2. Á¤¼ö±â »ç¿ë ÈÄ ºÒ¼Ò·Õµµ´Â ¿ª»ïÅõ¾Ð ¹æ½ÄÀÇ Á¤¼ö±â´Â 0.183¡¾ 0.016ppm, È°¼ºÅº ÇÊÅÍ
Á¤¼ö±â´Â 0.231¡¾0.051pprn, ¼¼¶ó¹Í ÇÊÅÍ Á¤¼ö±â´Â 0.240¡¾0.031ppm, Áß°ø»ç¸· ÇÊÅÍ Á¤¼ö±â´Â
0.299¡¾0.037ppm, ±×¸®°í Àº-È°¼ºÅº ÇÊÅÍ Á¤¼ö±â´Â 0.368¡¾0.030ppmÀ̾ú´Ù.
3. ¿ª»ïÅõ¾Ð¹æ½ÄÀÇ Á¤¼ö±â´Â77¡¾2%, È°¼ºÅº ÇÊÅÍ Á¤¼ö±â´Â 71¡¾6%, ¼¼¶ó¹Í ÇÊÅÍ Á¤¼ö±â
´Â 70÷Ï4%, Áß°ø»ç¸· ÇÊÅÍ Á¤¼ö±â´Â 62¡¾5%, ±×¸®°í Àº-È°¼ºÅº ÇÊÅÍ Á¤¼ö±â´Â 54ÞÍ4%ÀÇ
ºÒ¼Ò³óµµÀÇ °¨¼Ò¸¦ º¸¿´´Ù.
4. ½ÇÇè¿¡ »ç¿ëµÈ ¸ðµç Á¤¼ö±â´Â Åë°èÀûÀ¸·Î À¯ÀÇÇÏ°Ô »ó¼öÀÇ ºÒ¼Ò³óµµ¸¦ °¨¼Ò½ÃÄ×´Ù
(p<.001).
#ÃÊ·Ï#
The effectiveness of the fluoride ion in lowering the incidence of dental caries is of
maior significance to the entire field of dental health. Fluoride of public water supplies
has been recognized for many years as an effective way to reduce dental caries. The
purpose of this investigation was to determine the effect of several water conditioning
systems on the fluoride concentration.
A sampling apparatus was constructed to allow collection of water samples before and
after conditioning. The apparatus connected the following types of water conditioning
systems : a ceramic filter, a silver-carbon filter, an activated carbon filter, a reverse
osmosis system and a ultra filter. These samples were tested by using colorimetric
determination of fluoride concentration.
The results were as follows,
1. The water flouride concentration of primary school of Chungju-city was 0.793¡¾
0.001ppm.
2. Fluoride concentrations after conditioning were 0.183¡¾0.016ppm(the reverse osmosis
system), 0.231¡¾0.051ppm(the activated carbon filter), 0.240¡¾0.031ppm(the ceramic filter),
0.299¡¾0.037ppm(the ultra filter) and 0.368¡¾0.030ppm(silvercarbon filter).
3. Fluoride concentration was reduced by the reverse osmosis system(77¡¾2%), the
activated carbon filter(71¡¾6%), the ceramic filter(70¡¾4%), the ultra filter(62¡¾5%)and
silver-carbon filter(54¡¾4%).
4. All water conditioning systems tested caused a statistically significant reduction in
fluoride(p<.001).

Å°¿öµå

water conditioning system; fluoride; spectrophotometer;

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