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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.36, no.4, 2003³â, pp.447-454
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( The Application of Aluminum Coagulant for the Improvement of Water Quality in Three Recreational Ponds ) |
| °Çʱ¸;±è¹üö; °¿ø´ëÇб³ ÀÚ¿¬°úÇдëÇРȯ°æÇаú;°¿ø´ëÇб³ ÀÚ¿¬°úÇдëÇРȯ°æÇаú;
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| ºÎ¿µ¾çÈ£ÀÇ ¼öÁúÁ¤È¸¦ À§ÇÏ¿© ¾Ë·ç¹Ì´½ ÀÀÁýÁ¦¸¦ È£¼ö¿¡ ÷°¡Çϰí Á¶·ù¿Í ºÎÀ¯¹°ÀÇ Ä§°Á¦°ÅÈ¿°ú, ¹× ÀÎÀÇ °¨¼ÒÈ¿°ú¸¦ ÃøÁ¤ÇÏ¿´´Ù. ¼¿ï ¼®ÃÌÈ£¿Í °¿ø´ëÇб³ ±¸³» ¿¬¸øÀ» ´ë»óÀ¸·Î 8ȸ¿¡ °ÉÃÄ Ã·°¡·®À» ´Þ¸®ÇÏ¿© ½Ç½ÃÇÏ¿´´Ù. 7ȸÀÇ Ã³¸®¿¡¼´Â Ȳ»ê¾Ë·ç¹Ì´½À» »ç¿ëÇÏ¿´°í 1ȸ´Â PAC¸¦ »ç¿ëÇÏ¿´´Ù. ºÎÀ¯¹°ÁúÀÇ Ä§°Á¦°ÅÈ¿°ú´Â ÷°¡·®¿¡ µû¶ó Á¿ìµÇ¾ú´Ù. 10.0 mgAl/l¸¦ ÷°¡ÇÑ °æ¿ì¿¡´Â ºÎÀ¯¹°Áú, Á¶·ù, ÀÎ µîÀÌ ¿ÏÀüÈ÷ Á¦°ÅµÇ¾úÀ¸³ª, 3.3 mgAl/l¿Í 1.8 mgAl/l¸¦ ÷°¡ÇÑ °æ¿ì¿¡´Â ºÎºÐÀûÀÎÁ¦°Å È¿°ú°¡ ÀÖ¾ú´Ù. ±×·¯³ª 0.45 mgAl/l·Î ÷°¡ÇÑ °æ¿ì¿¡´Â °ÅÀÇ °³¼±È¿°ú°¡ º¸ÀÌÁö ¾Ê¾Ò´Ù. ¾Ë·ç¹Ì´½ ÷°¡°¡ ºÎÀ¯¹°À» ħÀüÁ¦°Å¿¡ È¿°ú¸¦ ³ªÅ¸³»±â À§Çؼ´Â ÃÖ¼Ò¿ªÄ¡ (¾à 5 mgAl/l) ÀÌ»óÀ» Åõ¿©ÇÏ¿©¾ß ÇÏ´Â °ÍÀ¸·Î °á·ÐÁöÀ» ¼ö ÀÖ´Ù. È¿°ú Áö¼Ó½Ã°£Àº ¿ÜºÎ·ÎºÎÅÍÀÇ Ãß°¡ºÎÇÏ·® À¯ÀÔ¿¡ ÀÇÇØ Á¿ìµÇ´Â °ÍÀ¸·Î º¸ÀδÙ. ¼®ÃÌÈ£¿¡¼´Â Àα٠ÇÏõ¼öÀÇ ÆßÇο¡ ÀÇÇØ °ð ´Ù½Ã È¥Å¹ÇØ Á³À¸¸ç, ±¸³»¿¬¸ø¿¡¼´Â °¿ìÈÄ ÁÖº¯ÀÇ Åä»ç°¡ À¯ÀԵǰųª ÁöÇϼö ÆßÇÎÀ¸·Î ¿µ¾ç¿°·ù°¡ À¯ÀÔµÇ¸é °ð ´Ù½Ã Á¶·ù°¡ ¹ø¼ºÇϰí È¥Å¹ÇØ Á³´Ù. ÀÀÁýÁ¦ Åõ¿©ÀÇ °á°ú·Î pH°¡ Áö³ªÄ¡°Ô ³·¾ÆÁö´Â ÇÇÇØ³ª ¾îÆÐ·ù¿¡ ´ëÇÑ À¯Çؼº ¡ÈÄ´Â ¹ß°ßµÇÁö ¾Ê¾Ò´Ù. ¿ÜºÎ ¿À¿°¿øÀ» Á¦°ÅÇÒ ¼ö ¾ø´Â È£¼ö¿¡¼´Â ÀÀÁýÁ¦ÀÇ Åõ¿©°¡ È£¼ö¼öÁú °³¼±ÀÇ ÀÓ½ÃÀû ´ë¾ÈÀ¸·Î Ȱ¿ëµÉ ¼ö ÀÖÀ» °ÍÀ¸·Î º¸ÀδÙ. |
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| Aluminum coagulant was applied to two eutrophic lakes (Lake Sukchon, in Seoul, and a pond on the campus of Kangwon National University), to precipitate suspended particles and phosphate from the water column. Aluminum sulfate (alum) was used for seven treatments and polyaluminum chloride (PAC) was used for one treatment. The effect of treatment varied depending on the dose of alumium coagulant. Particles and phosphate were completely precipitated from the water column with a dose of 10.0 mgAl/l. Partial removal was observed at doses of 3.3 and 1.8 mgAl/l, but not at 0.45 mgAl/l. Therefore, coagulant should be applied at a dose over the threshold in order to remove particles effectively, which seems to be between 1.8 and 10.0 mgAl/l. The length of treatment effect was determined by new inputs of nutrients and particles from external sources. Renewal of pond water by stream water caused recovery of algal growth in Lake Sukchon, and rainfall runoff and ground water pumping caused a return of turbid water in the campus pond. During treatment there was no sign of decreasing pH, or harmful effects on fish or mussels. Aluminum coagulant may be an economically feasible alternative for water quality improvement when the external control of pollutant sources is difficult. However, repeated application is required when there is a renewal of lake water or new input of nutrients. |
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| Ű¿öµå |
| aluminum coagulant;restoration;water quality;alum; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.36, no.4, 2003³â, pp.447-454
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200318317182049)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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