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Çѱ¹Áö¹Ý°øÇÐȸ / v.15, no.5, 1999³â, pp.291-300
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°è¸éȰ¼ºÁ¦¸¦ ÀÌ¿ëÇÑ Æ÷ÈÁöÃþ³» ÀúºñÁß ºñ¼ö¿ë¼º À¯±â¿ë¸ÅÀÇ Á¦°Å°Åµ¿¿¡ °üÇÑ ¿¬±¸
( An Experimental Study on Surfactant Enhanced LNAPL Removal Behavior in Saturated Zone ) |
| ÀÌÀç¿ø;¹Ú±ÔÈ«;¹ÚÁعü;ÀÓ°æÈñ; ¼¿ï´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;Áß¾Ó´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;¼¿ï´ëÇб³ °ø°ú´ëÇÐ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;Áß¾Ó´ëÇб³ °ø°ú´ëÇÐ ÈÇаøÇаú;
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| ÃÊ ·Ï |
| BTEX·Î ¿À¿°µÈ È¥ÇÕÅä(»çÁúÅä/Á¡Åä)ÀÇ Á¤È¸¦ À§ÇÑ °è¸éȰ¼ºÁ¦ ±â¹ýÀÇ Àû¿ë¼º ¹× Á¦°ÅÈ¿À²¿¡ ´ëÇÑ ¿¬±¸¸¦ ÁøÇàÇÏ¿´´Ù. Ãʱâ³óµµ 275mg/kgÀ¸·ÎºÎÅÍ 1975mg/kgÀÇ BTEX·Î ¿À¿°½ÃŲ 8°³ÀÇ Ä÷³¿¡ ¹°, methyl alcohol°ú °è¸éȰ¼ºÁ¦ ¿ë¾×À» ÁÖÀÔÇÏ¿´°í À̶§ °è¸éȰ¼ºÁ¦¿Í ÷°¡¹°ÀÇ È¥ÇÕ°ú ºñÈ¥Çսÿ¡ ´ëÇØ Á¦°Å°Åµ¿À» ºñ±³ ºÐ¼®ÇÏ¿´´Ù. ¹°À» ÀÌ¿ëÇÑ Èë ¼¼Ã´¹ýÀÇ Àû¿ë °á°ú 850 °£±ØºÎÇÇÀÇ ¹°À» ÁÖÀÔÇÏ¿© 98%ÀÇ Á¦°Å È¿À²À» º¸¿´À¸³ª 8mg/kg ÀÌÇÏÀÇ Àú³óµµ¿¡¼´Â ´õ ÀÌ»ó Á¦°Å°¡ ÀÌ·ç¾îÁöÁö ¾Ê°í ÀÏÁ¤ÇÑ ¾ç»óÀ» °¡Áö´Â tailing effect¸¦ º¸¿´´Ù. º» ½ÇÇè °á°ú °¡Àå ¿ì¼öÇÑ Á¶°ÇÀº3% ethyl alcohol°ú 3% SXS¸¦ ÷°¡ÇÑ 4% SOFTANOL(equation omitted)-90À» °£ÇæÀûÀ¸·Î ÁÖÀÔÇÑ °æ¿ì¿´À¸¸ç ÀÌ ¶§ 95 °£±ØºÎÇÇ¿¡¼ 99.5%ÀÇ Á¦°ÅÈ¿À²À» º¸¿´´Ù. ½ÇÇè°á°ú ¹°À» ÁÖÀÔÇÏ¿´À» °æ¿ì 850 °£±ØºÎÇǸ¦ ÁÖÀÔÇÑ ¹Ý¸é, °è¸éȰ¼ºÁ¦ Àû¿ë½Ã 95-165 °£±ØºÎÇÇ¿¡¼ 84.5%-99.5%ÀÇ Á¦°ÅÈ¿À²À» º¸¿´´Âµ¥ ÀÌ´Â °è¸éȰ¼ºÁ¦ ±â¹ýÀ» ¿À¿°µÈ Áö¹Ý Á¤È¿¡ È¿À²ÀûÀ¸·Î Àû¿ëÇÒ ¼ö ÀÖÀ½À» ³ªÅ¸³»´Â °ÍÀÌ´Ù. |
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| Surfactant flushing for enhancing the removal of BTEX from contaminated sand/clay mixtures was investigated. Eight soil columns packed with relatively undisturbed BTEX contaminated soils, were leached with water, methyl alcohol and then flushed with surfactant with or without several additives. Initial concentrations of BTEX mixture range from 278mg/kg to 1975mg/kg. Initial BTEX removal efficiency was 98% when the contaminated soil was flushed with water of 850 pore volumes. Because of tailing effect, water flushing could not remove below 8mg/kg concentrations during the experimental period. Eventually, the most effective surfactant for flushing was turned out to be 4% SOFTANOL(equation omitted)-90 with 3% ethyl alcohol and 3% SXS. In interrupted flow conditions, the removal efficiency was 99.5% with the flushed water of 95 pore volumes. The BTEX mixture removed from the soil columns during the surfactant flushing ranges from 84.5% to 99.5% of the initial amount for both water leaching(850 pore volumes) and surfactant flushing(95-165 pore volumes), respectively. Test results indicated that surfactant flushing could enhance the removal of BTEX mixture from contaminated soils and could reduce the aqueous phase BTEX mixture concentration in leachate. |
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| Ű¿öµå |
| Surfactant flushing;Soil column;Pore volume;Tailing effect; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.15, no.5, 1999³â, pp.291-300
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911921749702)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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