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Çѱ¹¼öÀÚ¿øÇÐȸ / v.34, no.5, 2001³â, pp.487-497
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( A Scheme of Effective Water Quality Management on Lake Okjeoung )
ÀÌ¿ä»ó;±è¿ì±¸; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò;
 
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¿ÁÁ¤È£¿¡ ´ëÇÑ ¼öÁúº¯È­ Á¶»ç ÀڷḦ Åä´ë·Î ¼öÁú¸ðÀǸ¦ ½Ç½ÃÇÏ¿´À¸¸ç, ±× °á°ú ¹ÙÅÁÀ¸·Î È¿À²ÀûÀÎ ´ïÀú¼öÁö ¼öÁú°ü¸® ¹æ¾ÈÀ» Á¦½ÃÇÏ¿´´Ù. ¿ÁÁ¤È£ÀÇ ¼öÁúÀº °èÀý¿¡ ´Ù¶ó Áß¿µ¾ç»óÅÂ¿Í ºÎ¿µ¾ç»óŸ¦ ³ªÅ¸³»´Â °ÍÀ¸·Î Æò°¡µÇ¾úÀ¸¸ç ÀÌ·¯ÇÑ ¼öÁú»óÅ´ ¿ÜºÎ·ÎºÎÅÍ À¯ÀԵǴ ¿À¿°¿ø¿¡ ¸¹Àº ¿µÇâÀ» ¹Þ°Ô µÇ¹Ç·Î ¿ì¼± À¯¿ªÀ¸·ÎºÎÅÍ À¯ÀԵǴ ¿À¿°ºÎÇÏÀÇ Á¤È®ÇÑ »êÁ¤ÀÌ ÇÊ¿äÇÑ °ÍÀ¸·Î Æò°¡µÇ¾ú´Ù. 1999³â¿¡ Á¶»çÇÑ 7Â÷·ÊÀÇ °­¿ì±â°£ Áß ÃÑ ºÎÇÏ¿Í ÀϳⰣ ¹ß»ýÇÑ ÃÑ ºÎÇϸ¦ ºñ±³ÇÏ¸é °­¿ì·®Àº 17.5%Àε¥ ºñÇØ SS´Â 72.8%, TN°ú TP´Â ¾à 50%°¡ °­¿ì±â¿¡ À¯ÀԵǴ °ÍÀ¸·Î Á¶»óµÇ¾ú´Ù. ¶ÇÇÑ ÅðÀû¹°ÀÇ ¿ëÃâÀ²Àº TPÀÇ °æ¿ì °¡µÎ¸® ¾ç½ÄÀåÀÌ ¿î¿µµÇ´ø ÁöÁ¡¿¡¼­´Â 11.92 mg/L, Á¤±â¼öÁú Á¶»çÁöÁ¡¿¡¼­ 0.2¡­1.9 mg/L·Î ±¹³»¡¤¿Ü ÀÚ·á¿Í ºñ±³ÇÏ¿© ¿ëÃâÀ²ÀÌ ÀÛÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ´ïÀú¼öÁö ¼öÁú°ü¸® ¹æ¾È ¼ö¸³À» À§ÇÏ¿© WASP5 ¸ðÇüÀ» Àû¿ëÇÏ¿´À¸¸ç °ËÁõµÈ °á°ú¸¦ ÀÌ¿ëÇÏ¿© °¢ ¼ÒÀ¯¿ª¿¡¼­ ¿À¿°ºÎÇÏ »è°¨¿¡ µû¸¥ 6°¡Áö ¹æ¾È¿¡ ´ëÇÑ ¼öÁú¸ðÀǸ¦ ½Ç½ÃÇÏ¿´°í °¢°¢¿¡ ´ëÇÑ ¼öÁú°³¼± È¿°ú¸¦ Á¦½ÃÇÏ¿´´Ù. °¡Àå È¿À²ÀûÀÎ ¹æ¾ÈÀº ÀÓ½Çõ À¯¿ª°ú °üÃ̱³ À¯¿ªÀÇ ¿À¿°ºÎÇϸ¦ Á¦¾îÇÏ´Â ¹æ¾ÈÀ¸·Î Æò°¡µÇ¾úÀ¸¸ç, °¡Àå ¼öÁú°³¼±È¿°ú°¡ ÁÁÀº °ÍÀº ´ëÇ¥ ¼¼À¯¿ªÀÇ ¿À¿°ºÎÇϸ¦ Á¦¾îÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. À̸¦ ¹ÙÅÁÀ¸·Î ¼öÁú°³¼±À» À§ÇÑ ÇÏ¡¤Æó¼öó¸®ÀåÀÇ °Ç¼³ ÀûÁö¸¦ Á¦½ÃÇÏ¿´´Ù.
Investigated data on Lake Okjeong were used for the simulation of water quality. According to the simulation results, the effective scheme of water quality management on reservoir has been proposed. It has been recognized that the water quality of Lake Okjeong is under eutrophic and mesotrophic condition even though there are seasonal variation. The water quality of lake is mainly affected by the inflow of pollutant load from watershed. Therefore, to estimate and quantify the accurate amounts of pollutants flowing into reservoir is absolutely necessary for the effective management of water quality on Lake Okjeong. When the pollutant load measured during 7 different rainy periods in 1999 was compared with total pollutant load in 1999. TN and TP measured during 7 different rainy periods showed almost 50% of total pollutant load. In case of SS, it was 72.8%. On the other hand, the rainfall amount measured during the 7 different rainy periods was about 17.5% of total rainfall amount in 1999. Release rate of TP shows 11.92 mg/L at fish farm site and 0.2¡­1.9 mg/L at monitoring station of water quality on Lake Okjeong, and which is considered to be less than that of other foreign reservoirs under the circumstances of anoxic condition. For the effective management of water quality on Lake Okjeong. WASP5 water quality simulation model has been applied and verified, and the verified model was used to propose the effective scheme of water quality management. In this case, 6 different scenarios were applied, by changing the amount of inflow of pollutant load in each subbasin. The most effective scheme has turned out that pollutant load generated from Imsil and Gwanchon subbasin should be reduced, and the best way to improve the water a quality is to reduce the pollutant load at every subbasin. According to the simulation result, wastewater treatment facility should be located at every subbasin.
 
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¼öÁú°ü¸®;¿ÁÁ¤È£;¿À¿°ºÎÇÏ;water quality management;Lake Okjeong;pollutant load;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.34, no.5, 2001³â, pp.487-497
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111920841063)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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