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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.6, 1999³â, pp.273-283
¹Ì»ý¹° ±ÕüÀÇ ÁÖÀÔÀ» ÅëÇÑ Åä¾çÀÇ Åõ¼ö°è¼ö °¨¼Ò
( Permeability Reduction of Soils by Biomass Injection )
¼Û¿µ¿ì;±è°ÇÇÏ;±¸µ¿¿µ; Çѳ²´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ¤ýȯ°æ°øÇаú;Çѳ²´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ¤ýȯ°æ°øÇаú;Çѳ²´ëÇб³ ´ëÇпø Åä¸ñ¤ýȯ°æ°øÇаú;
 
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¹ÚÅ׸®¾Æ¸¦ Åä¾ç°ú °°Àº ´Ù°ø¼º ¸ÅÁú¿¡ ÁÖÀÔ½Ã۰í ÀûÀýÇÑ ±âÁú°ú ¿µ¾çºÐÀ» °ø±Þ½ÃŰ¸é ¹ÚÅ׸®¾Æ´Â ¸ÅÁúÀÇ Ç¥¸é¿¡ ºÎÂøÇÏ¿© ¼ºÀåÇÏ¸ç ±× °á°ú °ø±ØÀÇ Å©±â°¡ °¨¼ÒÇÏ¿© ¸ÅÁúÀÇ Åõ¼ö°è¼ö°¡ °¨¼ÒµÇ°í ÀÔÀÚ°£ ¸¶Âû°è¼ö°¡ Áõ°¡ÇÑ´Ù. º» ¿¬±¸´Â Åõ¼ö°è¼ö°¡ ºñ±³Àû Å« ¸ð·¡¿Í È­°­Ç³È­Åä¿¡ ¹ÚÅ׸®¾Æ¸¦ Á¢Á¾, ¹è¾çÇÑ ÈÄ Åõ¼ö°è¼öÀÇ º¯È­¸¦ ÃøÁ¤ÇÏ¿´À¸¸ç, ¹è¾çµÈ ¹ÙÀÌ¿ÀÇʸ§ÀÇ ³»È­Çмº ¹× ¿Âµµº¯È­¿¡ ´ëÇÑ ³»±¸¼º ½ÇÇèÀ» ÅëÇØ ´ë¿ë Â÷¼öÀç·ÎÀÇ °¡´É¼ºÀ» Æò°¡ÇÏ¿´´Ù. È­°­Ç³È­Åä¿¡ ¹ÚÅ׸®¾Æ¸¦ Á¢Á¾, ¹è¾çÇÑ ÈÄ Åõ¼ö°è¼ö´Â ÃʱâÄ¡¿Í ºñ±³ÇÏ¿© ¾à 1/50 Á¤µµÀÇ °¨¼Ò¸¦ ³ªÅ¸³Â°í, »ê¼º ¶Ç´Â ¿°±â¼º¿ë¾×ÀÇ Ä§Åõ ÀÌÈÄ¿¡µµ Åõ¼ö°è¼öÀÇ ±Þ°ÝÇÑ Áõ°¡´Â ³ªÅ¸³ªÁö ¾Ê¾Ò´Ù. ±×·¯³ª ¹Ýº¹ÀûÀÎ µ¿°á-À¶ÇØÈÄ Åõ¼ö°è¼ö°¡ Áõ°¡ÇØ ¹ÙÀÌ¿ÀÇʸ§À¸·Î ÀÎÇÑ °ø±ØÀÇ Æó»öÀÌ ¼Õ»óµÉ ¼ö ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù.
When microorganism is injected into porous medium such as soils, biomass is retained in the pore. Soil pore size and shape are varied from the initial condition as a result of biofilm formation which makes hydraulic conductivity reduced and friction rate between soil aggregates increased. In this research, hydraulic conductivity reduction was measured after microorganism are inoculated and cultured with synthetic substrate and nutrient. In addition, this research evaluated the applicability of biomass-soil mixture to the field condition as an alternative cover material in landfill by measuring hydraulic conductivity change after repetitive freeze-thaw cycles. Hydraulic conductivity of silty soil decreased by approximately 1/50 after biomass inoculation and cultivation. Biofilm attached on soil aggregates is resistant to acidic or basic condition. After repetitive freeze-thaw cycles, however, hydraulic conductivity increase implies that biomass clogging can be impaired.
 
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Hydraulic conductivity;Biofilm;Landfill;Alternative cover material.;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.6, 1999³â, pp.273-283
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749927)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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