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Çѱ¹Áö¹Ý°øÇÐȸ / v.14, no.5, 1998³â, pp.191-204
ÇöóÀֽ̾¬ÀÇ Â÷¼ö ¹× ¿À¿°¹° Â÷´Ü ´É·Â Æò°¡ ¿¬±¸
( Evaluation of Fly Ash as an Alternative to Clay Liner Material in Landfills )
Á¤¹®°æ;ÇöÀçÇõ;±è½ÂÇö; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø Áö¹Ý¿¬±¸½Ç;Ãæ³²´ëÇб³ °ø°ú´ëÇРȯ°æ°øÇаú, ¿µ³²´ëÇб³ °ø°ú´ëÇРȯ°æ°øÇаú;;
 
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ÇöóÀÌ ¾Ö½¬ÀÇ Æó±â¹° ¸Å¸³Àå ´ë¿ë Â÷¼öÀç·Î¼­ÀÇ Àû¿ë¼ºÀ» Æò°¡Çϱâ À§ÇÏ¿© ½Ç³» ½ÇÇè°ú ¸ðµ¨ ¿¬±¸¸¦ ½Ç½ÃÇÏ¿´´Ù. ½ÇÁ¦ÀÇ ¸Å¸³Àå Â÷¼öÃþÀÌ ºÒÆ÷È­ »óÅÂÀÏ ¼ö ÀÖ´Â Á¡À» °í·ÁÇÏ¿©, ´ë¿ë Â÷¼öÀç¿Í ±âÁ¸ÀÇ Á¡Åä Â÷¼öÀç¿¡¼­ÀÇ Æ÷È­ ¹× ºÒÆ÷È­ »óÅ¿¡¼­ÀÇ ¹° È帧 Ư¼ºÀ» ºñ±³ÇÏ¿´´Ù. Â÷¼öÃþ¿¡¼­ÀÇ ¿À¿°¹° À̵¿ Ư¼ºÀ» ¿¬±¸Çϱâ À§ÇÏ¿© ¿À¿°¹°À» ÀÌ¿ëÇÑ È¸ºÐ½ÇÇèÀ» ½Ç½ÃÇÏ¿´À¸¸ç, À̶§ Æó³îÀ» ´ëÇ¥ ¿À¿°¹°Áú·Î »ç¿ëÇÏ¿´´Ù. ¸ðµ¨Àº ¹°Áú ¼öÁö¿¡ ±âÃÊÇÏ¿´À¸¸ç, À¯ÇÑ Â÷ºÐ¹ý°ú predictor-corrector¹ýÀ» ÀÌ¿ëÇÑ ¼öÄ¡ ÇØ¹ýÀ¸·Î Ç®¾ú°í, ¿¬¸³ ¹ÌºÐ¹æÁ¤½ÄÀ» ´Ù·ç´ÂÅ×´Â sequential method¸¦ ÀÌ¿ëÇß´Ù. ¿¬±¸ °á°ú ´ë¿ë Â÷¼öÀç´Â ±âÁ¸ Â÷¼öÀ纸´Ù Æó³î Â÷´Ü ´É·ÂÀÌ ´õ Å©°í ¶Ç ºÒÆ÷È­´ë¿¡¼­ÀÇ Â÷¼ö´É·Âµµ ´õ Å©´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ, º» ¿¬±¸¿¡¼­ °í·ÁµÈ È帧Á¶°Ç¿¡¼­´Â Â÷¼öÃþÀ» Æ÷È­´ë·Î ÇØ¼®ÇÒ °æ¿ì Åë°úÇÏ´Â ¹°ÀÇ ¾çÀÌ ¾à°£ °ú¼ÒÆò°¡µÇ°í Æó³î Â÷´Ü ´É·ÂÀº ¸Å¿ì °ú¼ÒÆò°¡µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
The feasibility of fly ash was evaluated as an alternative liner material to the conventional clay liner of landfills through modeling and laboratory experiments. In order to consider the effect of unsaturation on water flow through the liner, analyses were made to compare flow characteristics in saturated liner with that of unsaturated one. Contaminant migration characteristics in liners were investigated by batch experiment and modeling, in which phenol was employed as a model was solved by numerical techniques of finite difference method and predictor-corrector method to deal with high non-linearity. Sequential method was used to handle the system of differential equations. Results show that the alternative liner material is more capable of cutting off water flow in unsaturated condition and in preventing phenol from passing through it. It can be seen that, under the flow conditions considered in this study, the conventional saturation approach underestimates the amount of water passing through the liner and doers the cut-off capability against phenol significantly.
 
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Lanfill liner;Fly ash;Unsaturated hydraulic conductivity;Contaminant transport;Numerical modeling;Phenol;Adsorption;
 
Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.14, no.5, 1998³â, pp.191-204
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920448548)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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