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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.8, 2007³â, pp.97-106
pH¿¡ µû¸¥ Á¡ÅäÂ÷¼öÀçÀÇ Æ¯¼º
( Effect of pH Level on the Characteristics of a Landfill Clay Liner Material )
Á¤¼öÁ¤;ÀÌ¿ë¼ö;±èÅÂÇü; Çѱ¹½Ã¼³¾ÈÀü±â¼ú°ø´Ü ¿¬±¸¿ø;Çѱ¹Çؾç´ëÇб³ Åä¸ñ°øÇаú;Çѱ¹Çؾç´ëÇб³ °Ç¼³È¯°æ°øÇкÎ;
 
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º» ¿¬±¸¿¡¼­´Â Æó±â¹° ¸Å¸³Áö¿¡¼­ Á¡ÅäÂ÷¼öÀç¿¡ ´ëÇÑ Æó±â¹° ħÃâ¼öÀÇ ¿µÇâ¿¡ ´ëÇØ ¾Ë¾Æº¸°íÀÚ ¸ð·¡-º¥Å䳪ÀÌÆ® È¥ÇÕÅ並 »ç¿ëÇÏ¿© ÀÎÀå½ÃÇè, ºñÁß°èºÐ¼®, ±Õ¿­ÆÐÅÏ °üÂûÀ» ½Ç½ÃÇÏ¿´´Ù. ÀÎÀå½ÃÇè °á°ú, pH 9ÀÇ È¥ÇÕ¼ö¸¦ »ç¿ëÇÏ¿© ´ÙÁüÇÑ °ø½ÃüÀÇ ÀÎÀå°­µµ´Â pH 3, pH6ÀÇ È¥ÇÕ¼ö·Î ´ÙÁüÇÑ °ø½ÃüÀÇ ÀÎÀå°­µµº¸´Ù ÀÛ°Ô ³ªÅ¸³µ´Ù. ´Ù½Ã ¸»ÇØ, ÀÎÀå°­µµ´Â ³ôÀº pH¿¡¼­ °¨¼ÒÇϸç À̰ÍÀº pH°¡ Áõ°¡ÇÒ¼ö·Ï ¸é¸ðÈ­Çö»óÀÌ °¨¼ÒÇϱ⠶§¹®ÀÌ´Ù. ¶ÇÇÑ ºñÁß°èºÐ¼®¿¡¼­´Â pH°¡ Áõ°¡ÇÒ¼ö·Ï Å丳ÀÚÀÇ Ä§°­¼Óµµ°¡ ´À·ÁÁ® ¼¼¸³ÀÚÀÇ ÇÔÀ¯·®ÀÌ ³ô°Ô ³ªÅ¸³µ´Ù. À̰ÍÀº pH°¡ Áõ°¡ÇÔ¿¡ µû¶ó Á¡Åä ÀÔÀÚÀÇ ¸é¸ð±¸Á¶°¡ °¨¼ÒÇϱ⠶§¹®À̸ç ÀÌ·¯ÇÑ °æÇâÀº º¥Å䳪ÀÌÆ®ÀÇ ÇÔÀ¯·®ÀÌ Áõ°¡ÇÒ¼ö·Ï ´õ¿í ¶Ñ·ÇÇÏ°Ô ³ªÅ¸³µ´Ù. ±Õ¿­ÆÐÅÏ °üÂû °á°ú¿¡¼­µµ pHÀÇ ¿µÇâÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
In this study, experiments are conducted to find out the effect of waste leachate on landfill clay liner system. Tensile test, hydrometer analysis and crack pattern test were conducted on sand-bentonite mixtures with different pH values of water. The tensile strength of specimen compacted with pH 9 of water is smaller than that of specimen compacted with for pH 3 and 6 of water. That is, the higher the pH value, the smaller the tensile strength, because a higher pH solution decreases flocculation phenomenon. The percent finer also increased with high pH value in particle size distribution of fine grained soil (<0.075 mm), because the velocity of particles settling decreases. This trend becomes the clearer as the content of bentonite, becomes the larger, because the higher pH value decreases flocculation structure of fine soils. The results of the crack pattern tests also showed the effect of pH values of water.
 
Ű¿öµå
Clay liner;Crack;pH;Sand-bentonite mixture;Waste leachate;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.8, 2007³â, pp.97-106
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200734516348763)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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