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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.36, no.4, 2003³â, pp.467-472
Á¶·ùÆæ½ºÀÇ Á¶·ù Àú°¨ È¿°ú¿¡ ´ëÇÑ ½ÇÇèÀûÀÎ Æò°¡
( The Application of an Algal Fence for the Reduction of Algal Intake into the Water Intake Facility )
Àå¹ÎÈ£;¹Ú¼º¹è;Á¤Á¾¹®;³ëÀç¼ø;Á¤±¤¼®;ÁÖ±âÀç; ºÎ»ê´ëÇб³ »ý¹°Çаú;ºÎ»ê´ëÇб³ »ý¹°Çаú;ºÎ»ê´ëÇб³ »ý¹°Çаú, ºÎ»ê±¤¿ª½Ã »ó¼öµµ »ç¾÷º»ºÎ ¼öÁú¿¬±¸¼Ò;ºÎ»ê´ëÇб³ »ý¹°Çаú, ºÎ»ê±¤¿ª½Ã »ó¼öµµ »ç¾÷º»ºÎ ¼öÁú¿¬±¸¼Ò;ºÎ»ê´ëÇб³ »ý¹°Çаú;ºÎ»ê´ëÇб³ »ý¹°Çаú;
 
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º» ¿¬±¸¿¡¼­´Â »ó¼ö¿ø¼ö Ãë¼öÀåÀÇ Ãë¼ö±¸·Î À¯ÀԵǴ Á¶·ù ±ºÃ¼ÀÇ ¾çÀ» ¹°¸®ÀûÀ¸·Î ¾ïÁ¦ÇÒ ¼ö ÀÖ´Â Á¶·ù Ææ½º¸¦ °³¹ßÇϰí, ÇöÀå¿¡ Àû¿ë ¹× Æò°¡ÇÏ¿´´Ù(2001³â 6-9¿ù). Ææ½º¸¦ ¼³Ä¡ÇÑ ÈÄ Ææ½º ¾ÈÆÆÀÇ ½Ä¹°Çöûũſ »ýü·®Àº Åë°èÀûÀ¸·Î À¯ÀÇÇÑ Â÷À̸¦ ³ªÅ¸³»¾ú´Ù. ºÐ»ê ºÐ¼®ÀÇ °á°ú ¼³Ä¡ 1ÀÏ ÈÄÀÇ chl. a´Â ¸ðµç ¼ö½É (0, 1,2 m)¿¡¼­ À¯ÀÇÇÑ Â÷À̸¦ º¸¿´À¸¸ç (¸ðµç ¼ö½É¿¡¼­ 0.001 > p ,°¢ ¼ö½Éº° r= 16), ƯÈ÷ Ç¥Ãþ°ú ¼ö½É 1m¿¡¼­ °¡Àå Å« Â÷À̸¦ º¸¿´´Ù. ÇÏÁö¸¸ Á¶·ù Àú°¨ È¿°ú´Â ¼³Ä¡ ÈÄ 3-5ÀÏÀÌ Áö³ª¸é¼­ °¨¼ÒÇÏ¿´´Ù. Á¶·ù Ææ½ºÀÇ ¹°¸®Àû À¯ÀÔ Àú°¨ È¿°úÀÇ Áö¼Ó¼º À¯Áö¸¦ À§Çؼ­´Â È¿°úÀûÀÎ ¼³Ä¡ ¹× À¯Áö°ü¸® ¹æ¾È(¿¹, ±â°èÀûÀÎ ¼³Ä¡ ¹× ÁÖ±âÀûÀÎ ¿ª¼¼Ã´ µî)ÀÌ ¸ð»öµÇ¾î¾ß Çϸç, »ýÅ ¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ´ë¹ø¼º ½Ã±â ¿¹ÃøÀÌ °¡´ÉÇÒ °æ¿ì ÈξÀ È¿°úÀûÀ¸·Î Á¶·ùÀÇ À¯ÀÔ Â÷´ÜÀÌ °¡´ÉÇÒ °ÍÀ¸·Î º¸ÀδÙ.
In this study, an algal fence was developed and applied to reduce the input of algal scum into the water intake facility. The effectiveness of vertical algal fences(overlapped three types of meshes, (312 ${mu}m$ ${ imes}$ 375 ${mu}m$, 390 ${mu}m$ ${ imes}$ 450 ${mu}m$, and 0,7 cm ${ imes}$ 1cm; vertical depth, 1.5 m; length of fence, about 120 m)) was experimentally tested at a water intake facility (Mulgum, lower Nakdong River). The application of the fence resulted in the statistically significant difference of algal biomass between inside and outside of the fence. According to ANOVA test, chi. a concentration in Day-1showed large difference at each depth of 0, 1, 2 m (0.001> p at each depth, n = 16 respectively). Especially large difference was observed at 0 and 1 m depth. However, the fence was only effective for a short period and its efficiency declined by Day-5after the installation. When better maintenance options for the fence are prepared, e.g. mechanical installation and periodic backwashing of the fence, the performance of algal fence may be sustained. In addition, reliable models for bloom prediction are required to provide an advanced indication of the optimal timing for the installation so that effective operation would be achieved.
 
Ű¿öµå
Microcystis blooms;algal fence;water intake facility;Nakdong River;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.36, no.4, 2003³â, pp.467-472
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200318317182071)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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