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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.9, 2006³â, pp.5-14
¿À¿°ÅðÀûÅä¿¡ ´ëÇÑ µ¿Àü±âÀû ħÀü ¹× Á¤È­ °øÁ¤¿¡¼­ÀÇ ½Ã·á ¹Ðµµ ¹× ħÇÏ º¯È­ Ư¼º
( The Variation of Density and Settlement for Contaminated Sediments During Electrokinetic Sedimentation and Remediation Processes )
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º» ³í¹®¿¡¼­´Â À¯±â¹°Áú·Î ¿À¿°µÈ ÅðÀûÅä¿¡¼­ µ¿Àü±â ħÀü ¹× Á¤È­ ±â¹ýÀ» ÀÌ¿ëÇÏ¿© ÃÊ¿¬¾àÇÑ ÅðÀûÅäÀÇ Ä§Çϸ¦ ÃËÁø½ÃÄÑ ¹Ðµµ¸¦ ÁõÁø½ÃŰ´Â ¿¬±¸¸¦ ¼öÇàÇÏ¿´´Ù. º» ³í¹®¿¡¼­´Â ÀÎü¿¡ ¹«ÇØÇÑ ¿¡Æ¿·»±Û¸®ÄÝ À¯±â¹°ÁúÀ» ÀϹݼö¿Í ÀûÁ¤ÇÏ°Ô ¼¯Àº ¿À¿°¼ö¿¡ Ä«¿À¸®³ªÀÌÆ® Á¡Å並 È¥ÇÕÇÏ¿© ÇÔ¼öºñ°¡ ³ôÀº ½½·¯¸® »óŸ¦ Á¶¼ºÇÏ¿© ¸¸µç ¿À¿°µÈ ÅðÀûÅ並 ½Ã·á·Î »ç¿ëÇÏ¿´´Ù. ÀϹÝÀûÀ¸·Î µ¿Àü±â±â¹ýÀ» ÀÌ¿ëÇÑ Àü±â¿µµ¿ ¹× Àü±â»ïÅõ¿¡ ÀÇÇÏ¿© ½½·¯¸®³»ÀÇ °íÇü¹° ÀÔÀÚ¸¦ À½±ØÀ¸·Î À̵¿½ÃŰ°í °£±Ø¼ö¸¦ ¾ç±ØÀ¸·Î ¹èÁ¦½Ãų ¼ö ÀÖ´Â °ÍÀ¸·Î º¸°íµÇ°í ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â ¿À¿°µÈ ÅðÀûÅä¿¡ ´ëÇÏ¿© °íÇü¹°ÇÔ·®, °ø±ÞÀü¾Ð ¹× ¿À¿°³óµµ¸¦ º¯È­½ÃŰ¸é¼­ µ¿Àü±âħÀü ¹× µ¿Àü±âÁ¤È­ ½ÃÇèÀ» ¿¬¼ÓÀûÀ¸·Î µ¿½Ã¿¡ ¼öÇàÇÏ¿´À¸¸ç µ¿Àü±âħÀü ¹× µ¿Àü±âÁ¤È­ °øÁ¤¿¡¼­ ¹ß»ýÇÑ ½Ã·áÀÇ Ä§ÇÏ ¹× ¹Ðµµ º¯È­¿¡ ´ëÇÏ¿© »ìÆìº¸¾Ò´Ù. ½ÃÇè°á°ú ¿À¿°ÅðÀûÅäÀÇ Ä§ÇÏ·®Àº °ø±ÞÀü¾ÐÀÌ Å¬¼ö·Ï °íÇü¹°ÇÔ·® ¹× ¿À¿°³óµµ°¡ ÀÛÀ»¼ö·Ï Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±×¸®°í ¿À¿°ÅðÀûÅäÀÇ ¹Ðµµ´Â µ¿Àü±â ħÀü´Ü°è¿¡¼­´Â ½Ã·áÀÇ Ä§ÇÏ¿¡ ÀÇÇÏ¿© Áõ°¡ÇÏ°í µ¿Àü±â Á¤È­´Ü°è¿¡¼­´Â ¹°º¸´Ù ¹«°Å¿î À¯±â¹°ÁúÀÇ À¯Ãâ¿¡ ÀÇÇÏ¿© °¨¼ÒÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
Generally, the sediments contain significant water, clay, colloidal fraction and contaminants, and can result in soft strata with high initial void, and its potential hazards in subsurface environments exist. Electrokinetic technique has been used in sedimentation for volume reduction of slurry tailing wastes and in remediation for extraction of contaminants from contaminated soils. In this research, the coupled effects of sedimentation and remediation of contaminated sediments are focused using electrokinetic sedimentation and remediation techniques from experimental aspects. A series of laboratory experiments including variable conditions such as initial solid content of the specimen, concentration level of the contaminant, and magnitude of applied voltage are performed with the contaminated sediment specimens mixed with ethylene glycol. Commercially available high specification Kaolin was used to simulate slurried sediment. From the test results, the settlement of specimen increases with increasing of applied voltage and decreasing of solid content and contamination level. The density of specimen increases due to settlement of specimen in the process of electrokinetic sedimentation and decreases due to extraction of organic contaminant in the process of electrokinetic remediation.
 
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Contaminant;Electrokinetics;Sediment;Sedimentation;Remediation;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.9, 2006³â, pp.5-14
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200634515067296)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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