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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.37, no.1, 2004³â, pp.112-121
Çϼö󸮼ö °ü°³ÈÄ º­Àç¹è ½ÃÇ豸¿¡¼­ ÁöÇ¥¹Ì»ý¹° °Åµ¿ ºÐ¼®
( Analysis of Indicator Microorganism Concentration in the Rice Cultural Plot after Reclaimed Water Irrigation )
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ÀÌ ¿¬±¸¿¡¼­´Â Çϼö󸮼ö¸¦ ³ó¾÷¿ë¼ö·Î½á ÀçÀÌ¿ë½Ã ¹ß»ýÇÒ ¼ö ÀÖ´Â À§»ý¹®Á¦¸¦ °ËÅäÇϱâ À§ÇØ ÇÏõ¼ö, biofilter À¯Ãâ¼ö, ±×¸®°í UV¼Òµ¶¼ö¸¦ °ü°³ÇÑ º­Àç¹è ½ÇÇèÆ÷Æ®¿¡¼­ ÁöÇ¥¹Ì»ý¹°ÀÇ ¹Ðµµº¯È­¸¦ Á¶»çÇÏ¿´´Ù. ¿ì¸®³ª¶ó Çϼöó¸®Àå À¯Ãâ¼ö ¼öÁú±âÁØÀ» »ìÆìº¸¸é, USEPA¿¡¼­ Á¤Çϰí ÀÖ´Â ³ó¾÷¿ë¼ö ÀçÀÌ¿ë ¼öÁú±âÁØ Ç׸ñÀÎ $BOD_5$¿Í SSÀÇ ¼öÁú±âÁØÀº ¸¸Á·½ÃŰÁö¸¸, ´ëÀå±ÕÀÇ °æ¿ìÃß°¡ÀûÀΠ󸮰¡ ÇÊ¿äÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. º­ ½ÄÀç Á÷ÈÄÀÎ 5¿ù°ú 6¿ùÀÇ °æ¿ì °ü°³ ÈÄ 24½Ã°£ µ¿¾ÈÀÇ Æò±Õ¹Ðµµ°¡ $10^2{sim}10^4$ÀÇ ¹üÀ§¿¡¼­ °ü°³¿ë¼öÀÇ ¹Ðµµ¿Í »ó°ü¾øÀÌ ÁöÇ¥¹Ì»ý¹°ÀÇ ¹Ðµµº¯È­´Â Å©°Ô ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ÀÌ ½Ã±â¿¡´Â ±âºñ¿Í Ãߺñ·Î ÀÎÇØ ¹Ì»ý¹°ÀÇ ¼ºÀå¿¡ ÇÊ¿äÇÑ ¿µ¾ç¹°Áú, ±³¶õµÈ ÀúÁúÀÇ ³ôÀº ¹Ì»ý¹° ¹Ðµµ µî¿¡ ¿µÇâÀ» ¹Þ°í ³íÀÇ º­ »ýÀ°»ýŰ¡ ´ú ¼º¼÷µÇ¾ú±â ¶§¹®À¸·Î ÆÇ´ÜµÈ´Ù. ±×·¯³ª 7¿ù°ú 8¿ùÀº 󸮱¸º°·Î ¹ÐµµÂ÷À̰¡ Äǰí 24½Ã°£ µ¿¾È º¯È­Æøµµ ÄÇÀ¸¸ç, °ü°³¿ë¼ö ¹Ì»ý¹°¹Ðµµ¿¡ ¿µÇâµµ ÀϺΠ³ªÅ¸³µ´Ù. ½ÇÇè±â°£µ¿¾È ÁöÇ¥¹Ì»ý¹°ÀÇ ¹Ðµµ¸¦ °ü°³¿ë¼öº°·Î ºÐ»ê ºÐ¼®ÇÑ °á°ú, UV¼Òµ¶ ÈÄ °ü°³ÇÑ °æ¿ì°¡ ÇÏõ¼ö¿Í biofilter À¯Ãâ¼ö¸¦ »ç¿ëÇÑ °æ¿ìº¸´Ù ³·Àº ¹Ðµµ¸¦ ³ªÅ¸³»¾ú´Ù. ½ÇÁ¦ ³í³ó»ç°¡ ÀÌ·ç¾îÁö°í ÀÖ´ø ¾çÆò±ºÀÇ ÇÏõ°ü°³ ³í°ú ¿©ÁÖ±ºÀÇ ÁöÇϼö°ü°³ ³íÀǽ÷áºÐ¼®¿¡¼­ ÁöÇ¥¹Ì»ý¹° ¹Ðµµ´Â FC, E. coli¹Ðµµ°¡ TC¹Ðµµº¸´Ù Å©°Ô ³·¾ÒÀ¸¸ç, ½Ã±âº°·Î ¹ÐµµÀÇ Â÷À̰¡ ÀÖÀ¸³ª, TC, FC, ±×¸®°í E. coliÀÇ Æò±Õ¹Ðµµ°¡ ¾à 4,000, 400,300 MPN/100mL¹üÀ§¸¦ ³ªÅ¸³»¾ú´Ù. TCÀÇ ¹Ðµµ´Â º» ½ÇÇèÆ÷Æ® ½ÇÇè°ú À¯»çÇÑ ¹üÀ§À̾úÀ¸¸ç, FC¿Í E. coli´Â ½ÇÇèÆ÷Æ®¿¡¼­ Ãʱ⠰æ¿î½Ã »ç¿ëµÈ biofilter À¯Ãâ¼öÀÇ ¿µÇâÀ¸·Î ½ÇÁ¦ ³íº¸´Ù ³ôÀº °ªÀ̾ú´Ù. À̾ӱ⠶§¿¡´Â Ưº°È÷ ³í Ç¥¸é¼ö¿Í ½ÅüÁ¢ÃËÀÌ ¸¹Àº Á¡À» °í·ÁÇÒ ¶§ Çϼö󸮼ö¸¸À» °ü°³ÇÏ¿© À̾ÓÁغñ¸¦ ÇÏ´Â °Íº¸´Ù Çϼö󸮼ö¸¦ º¸Á¶°ü°³¿ë¼ö·Î »ç¿ëÇÏ´Â °ÍÀÌ º¸´Ù ¾ÈÀüÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. Çϼö󸮼ö¸¦ ³ó¾÷¿ë¼ö·Î ÀçÀÌ¿ëÇÒ °æ¿ì Çϼö󸮼ö¸¦ °ü°³¿ë¼ö·Î Á÷Á¢ ÀÌ¿ëÇϱ⺸´Ù´Â UV¼Òµ¶À¸·Î º¸°Ç À§»ýÇÐÀûÀ¸·Î ³ôÀº ¾ÈÁ¤¼ºÀ» È®º¸ÇÒ ¼ö ÀÖÀ¸¸ç Çϼö󸮼öÀçÀÌ¿ë ¼öÁú±âÁØ¿¡µµ ÀûÇÕÇÒ ¼ö ÀÖÀ» °ÍÀÌ´Ù. ±×·¯³ª º­ÀÇ »ýÀ°¿¡ ¿µÇâÀ» ÁÙ ¼ö ÀÖ´Â ¿µ¾ç¹°Áú°ú´Ù·Î ÀÎÇÑ µµº¹¹®Á¦, Çϼö󸮼ö¿¡ Á¸ÀçÇÒ ¼ö ÀÖ´Â µ¶¼º¹°Áú¿¡ ÀÇÇÑ ¿µÇâ µî Çϼö󸮼ö¸¦ °ü°³°­¼ö·Î ÀÌ¿ëÇÏ´Â µ¥¿¡´Â Á¾ÇÕÀûÀÌ°í °úÇÐÀûÀÎ °íÂûÀÌ ÇÊ¿äÇϸç, º»¿¬±¸ÀÇ °á°ú´Â Çϼö󸮼ö¸¦ ³ó¾÷ÀûÀ¸·Î ÀÌ¿ëÇÒ °æ¿ì °ø°øÀÇ º¸°Ç ¡¤À§»ýÀûÀÎ ¾ÈÀüÀ» È®º¸Çϱâ À§ÇÑ ±âÃÊ¿¬±¸·Î¼­ÀÇ ¼º°ÝÀ» °®´Â´Ù°í ÇÒ ¼ö ÀÖ´Ù.
A study was performed to examine the effects of UV-disinfected reclaimed water on microorganism concentration during rice culture. Four treatments were used and each one was triplicated to evaluate the changes of microorganism concentrations: stream water irrigation (STR), biofilter effluent irrigation (BE), UV-disinfected water irrigation with dose of 6 mW ${cdot}$ s $cm{-2}$ (UV-6), and UV-disinfected water irrigation with dose of 16 mW ${cdot}$ s $cm{-2}$ (UV-16). The indicator microorganisms of interest were total coliform (TC), fecal coliform (FC), and E. coli. The biofilter effluent from 16-unit apartment sewage treatment plant was used as reclaimed water and flowthrough type UV-disinfection system was used. Concentrations of indicator microorganisms in the treatment plots ranged from $10^2$ to $10^5$ MPN/100 mL during 24 hours after irrigation in May and June, where initial irrigation water for transplanting reparation was biofilter-effluent without UV-disinfection. It implies that initial irrigation using only non-disinfected reclaimed water for puddling in paddy field can be health-concerned because of more chance of farmer's physical contact with elevated concentration of microorganisms. The concentrations of microorganisms varied widely with rainfall, and treatments using UV-disinfected water irrigation showed significantly lower concentrations than others and their levels were within the range of paddy rice field with normal surface water irrigation. The mean concentrations of STR and BE during growing season were in the range of 4 ${ imes};10^3$ MPN/100 mL for TC, and 2${ imes};10^3$ MPN/100 mL for FC and E, Coli, While mean concentrations of UV-S and UV-lS were less than 1${ imes};10^3$ MPN/100 mL for all the indicator microorganisms. Overall, UV-disinfection was thought to be feasible and practical alternative for agricultural reuse of secondary level effluent in Korea.
 
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indicator microorganisms;paddy rice culture;reclaimed water;irrigation;UV-disinfection;water reuse;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.37, no.1, 2004³â, pp.112-121
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200418317182464)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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