IEG 환경지질연구정보센터
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(2) ;ç*ÁÒ'Áç¢. 38. f ãB', ~ã' GöB F~Ò¢ '>, 6 Air-Sparging¾ Bioremediation" ?f *ËÚ »" 'b 'ÏB , BÎN Ëç" ?f ÿ> çßÎ"(synergy effect)¢ V& > ®j ©¢ ÒòB . "BÚ : MTBE, öæÚ, NO, >wãÚ», ÏÎN 1.. B . ¢ ËV* ã 6º «b Âö z FB N {>î . ÿb þj Û BzW ¶ò¢ " EPAº MTBE~ Bz&ËWj ÚBz&ËWb î(Probable human carcinogen) b ÿböBº Bzö & Ϫ Ã& ®b¾, *ö²º ¦'. à 6 º Ã& ìrj ¾æÚº B2 ;~ ® . V¢B Ú;ö ~º *Wö & ÖJ& .> Ã&~& , MTBE ÒÏ B>º B~ ;ê& ¸jæ ®º º^. . 6, ;öVb ¾Ò ^B 7 ~¾ öæÚ~ ~ã ^B¢ Ö~V * O»b ÒæÚf Zªö" ?f &Ï" ~ÞÒ" ~²'" ?f Ï Ò >¾ ÆÏÒ, ãæ ÒÏb ö; & Ò Ï>º ö; Ï> ® . ß®, Zªö" ?f ; º Ïö & ô >Ú z . öæÚ~ "W ª W>æf ÂZº ç ï~ 7.³" FV J" bîj >O > ® º & ô Ú^ z . V¢B, öBº ôf >& B> ¾Ò> ® º öæÚ~ MTBE~ OßWj 2k~V * ²ª þb 10, 25, 50 mg/l ³ê~ MTBE¢ öæÚf £ 48* v>~ öæÚ~ NOj ~, þ. Î~ ¢" þj Ï~ OÎN" 2"Fj ~ &ºÖ~ Î&B ÒÏ>º MTBE J"B æ~>¢ ¾Ò > ®º O >wãÊ~ O î 2êB öæÚ~ 'Ï æ Wö & V.¢ ~& . MTBE. ê³' ãBB*" "~ ²>& ËçNö V¢ ÛêÓ ¶òö V 2002j 1ú *Ò ¶ÿN &> & £ ÂâWò & >º ê³ Ã& ©b . ç~ ® . ¶ÿN &>~ Ã& ò~ >ºf öæÚ B Ã&~ ® . *Ò ÒÏ > ®º &ºÖ~ ãÖ, &ºÖ~ ®j*² & V J" 'æ¶, &VJ"&6 ;k~ ¢~b Ö Ò¾¢¢ j ôf &öB ÖzB¢ &ºÖ ö ~ê ~Zz~& . ß®, ~ ãÖ 1990 j &VÓ;»(Clean Air Act)öB &VJ" 9B êº > òö ÖzB¢ ~ê ~& . & ' ÖzBº öêR, Methyl tertiary Butyl Ether (~ MTBE £) ® . ß®, MTBEº &Ï &Z~, VË çú~ &Ë ô ÒÏ> ®º ÖzB òö Î&>Ú úêVËj BF~ ¢Özê ²f ÊF" ?f &VJ"bî~ Bj Î"'b 6 ²Ê ® . Þb, MTBEº ' >î J"j ¢V > ®º zbî . "¾ö Ú æ~ &Ë(Underground Storage Tank; UST)öB NAPLs (Non Aqueous Phase Liquids) ®Òº F~ 5 Fz bî~ * &ËWö & > ® . ß® "F² æ~&ËöB NAPLs~ * J"f Æ·~ ê¢ 2Z~ æ~>¢ J"Ò &ËW. Ö ¸j ' ~ã^B &v> ®º ; . MTBEº >7öBº 7ª, &>ª, &î _f ¦F bîö O ~ ¢Ú¾æ p ³ê ÿ~ ² B . ß® MTBE~ J"ö ~ ^B& ¢V> ® º æ~>öB~ Òº ¸f Ïê Úö 'Ë î > ® æ~>öB~ ÿ æ BTEXz b"º Ò Ö . >ïÿöò jî¢ >ç ÿ Ö B~, [~ æ~>ræ J"ʺ © b Ò> ® . MTBE¢ >BF & *ÂF ãÖ, BTEXzbf *Âæ6 ¦"öB º~ ~ MTBEº æ~> ~~¦ 5 [¦ {Ö, Ç> Ú 7º* æ~>¢ J"Ò &ËW ¸j ©b Ò> ® . ëW' GöB MTBEº *Ò, Ò²ö & BzW ¶òº jç BB :& ìæò, vö 1,14). 14). 1,14). 1,6,11,12,14). 4,6-9). 6,10,12). 1). Journal of KoSSGE Vol. 8, No. 3, pp. 37~44, 2003. 2.. O 5 þO» 2). O Of v ç~ ãêöB ¢Ú¾ _f ^ ~ ÚöB ¢Ú¾º bî~ »' 6º ³»*çb " > ® . W OB~ Of b OB& bulk Ïb¦V «¶Ú~ O*~ ÿ, ³»>º "; b O";f ¢N~ ³ ê ¾2 > ® . Ñ êº bOB& OB "*~ ãïj Û bulkÏ b¦V OB~ ¦ b ÿ~º ê OB~ ª¶Úÿö ~ {Ö "º ·Ï B . ãïj Û bî*f ç&'b ¶Ò > ®b Bf ²ª >w Úö v>j ~¾ 2.1..
(3) 2ê öæÚ¢ Ï >wãÚö & . ;[ O ¢"öB~ vªj Â~ç Fæb F > ® . æ O³êº OB «¶~ ¦ 'ö jf~ ãê[ {Ö O³ê~ B ê ãÖ OB~ ßWö Z&~ . ~ êº bOB& OB~ ¦b¦V « ¶ Ú¦ ÿ~º ê Ú~ *j Û {Ö" ~ Új V¢ ÿ~º v ê ¾*Ú ' > ®b ''f ÿö ¢Ú ê > ® . Úç {Ö~ ³êº bOB ª¶f~ Ú "~ Ïò Ï ª¶f~ Ïò" jv~ ç&' b ' &;~ Z r, ;æ bulk Ïj Û {Ö³êf ? &; > ®b V¢B Nê~ 'Ë Þ . > Úç {Öf Úö OB ê bî* ¢Ú > ®b ~ O ·ö 'Ëj Aº . æ «¶* {Ö³êº Úç {Ö " Úç {Öj ÿö J~¢ . «¶* { Öf ¢>'b N æ Ã&~ bOB~ ª¶ï æ 6² . q êº bOB& OB «¶~ öB bÒ z'b O>º ê OBf bOB~ ç^· ÏßWö V¢ &¦ª~ O";öB ãê[ { Ö 6º «¶* {Öö jv~ Ö ² ¢Ú ê . ²ªOöBº v>ö ~ ;BK ·Ï~ æ bOb Â~, {Öö ~~ ÿ³ê¢ & æ bOb 5 OB~ «~f ª¶~ ÿ³êö ~ {Ö ;êö V¢ æz . 2.2.. 39. " zêRj >wB B . öò ² ¦ 2f " ÏÒ ª; 6º 7îF ª;öB W>, ¦ê~ Wz, TBA~ î>zö ~ B> Vê . MTBEº Table 1" ?f bÒz' ßWj &æ ® . ¢>' êz>² W ² ,. NöB >BW~ ZïÚ 6ê& Ô, &W, Vf BW~ bbj ;W > ® . êz> ², ör 5 rzRö & Ïê& j" ¸ ò ÚöB >ª> 5 bö ~ çªÒ ^B& ìb, ß ® Kê&& ¸ CF~ B®"~ bW ±j Ö² zb 7 ¶ÿNÏ >BF VÒ ô ÒÏ> ® .. þö ÒÏB MTBEº SupelcoÒ~ 99.99%~ Bê¢ &æº Standard 1000 mg(Neat)j j& 8 18.2 Ω î N> C~ ÒÏ~& . ÖF, 1 l Ïï 2¢Ê ö î N>¢ jÚ Ê Standard 1 mgj Î& ÒÏ~ 1000 mg/l~ &öj ò Ú ÒÏ~& . MTBE ªCö ÒÏ~V * 1000 mg/l~ Ïj C~ 1, 5, 10, 25, 50, 100 mg/l ~ &j B~& . (isobutylene). öæÚ öB ÒÏ öæÚº ¶öÒÒöB B A~b, öæÚ~ "º Wªf Fig. 1" ?  Z 5 WZ& 7ïj £ 50.0%. :¿ £ 27.5%, VªWª £ 17.5%, ²ª £ 5.0% ¾æÒ . 2.2.2. þ Òò. 2.2.1 MTBE. º ¢>'b jv' Nz Ú*öB ;Ö W~ ·N v~>æ ~ Ö/ ~öB ²¦ 2 MTBE. Table 1. Properties of MTBE1) Item Molecular Formula Molecular Weight (g/mole) Color Specific Gravity (at 20oC) Caloric Value (J/kg) Specific Heat (J/kg) Boiling Point (oC) Flash Point (oC) Ignition Point (oC) Vapor Pressure (Pa at 25oC) Solubility (% at 20oC). Properties CH3OC(CH3)3 88.14 Colorlessness 0.740 3.52 107 2.13 55.2 −28 224 32.659~33.546 4.8. Fig. 1. Composition of ground Tire3).. Ü. Fig. 2. Consistent Elements in the ground Tire14). Journal of KoSSGE Vol. 8, No. 3, pp. 37~44, 2003.
(4) ;ç*ÁÒ'Áç¢. 40. öæÚ~ z' Wªf Fig. 2ö ¾æ :f ? 7ïj ê²& £ 83.0%, >²& £ 7.0%, Ö²& £ 2.5%, £ 1.2%, î²& £ 0.3%, ²ª £ 6.0% W>Ú ® . ²ª Oï; þö ÒÏ~V *ö BAf öæ Ú~ «ê& ¢~æ pj Ú¢ Ï~ ªÒ~& . 4® Ú¢ Ï~ æª 4.75 mm ç öæÚf 16 ® Ú¢ Ï~ æª 1.18 mm ~ öæÚ¢ ª Ò~ &j~& . öæÚº æª 4.75 mm ç æÚf 1.18 mm ç 4.75mm ~ æÚ, Ò 1.18 mm ~ 3«j &j~& . Ò j& 8 18.2 Ω îN> aÚ Çb" VªWªj B~& . 105 CöB 24*ÿn Î êö ÒÏ~& . o. þ O» 2.3.1 MTBE ªC MTBE ªCf Ï Îúj ÒÏ~ Ï ºÂ~ ¯~& . Îúf J. T. BakerÒ~ º~³£ ªC Ïj ÒÏ~& . Îú 20 mlf ò 20 ml¢ 1:1 40 ml Vialö If êö Vortex Mixer¢ Ï~ £ 10 ª ÿn ºÂ êö, £ 1* ÿn .r2 ºÂVöB .r2 ºÂj ~& . O»b MTBE¢ º  ê Îúj Capillary Column DB-5& J~B GC 2010(SHIMADZU, JAPAN)~ >² "Nz ¦ÂV (Flame Ionization Detector) ;ï~&b, ªC f SHIMADZUÒ~ GC solution programö ~ ; ~& . þöB ÒÏ Gas Chromatograph~ ªC f ¢" "«Nê¢ 250 C, J6~ Nê¢ 30 CöB ·~ 10 C/minb ßNB 100 Cræ ßNVb, 2.3.. o. o. o. o. Table 2. Analytical Condition of MTBE by the Gas Chromatograph Items Column Injection Mode Injection Temperature Detector Temperature Column Temperature Carrier Gas Column Flow Rate Detector Sample Injection Volume. Conditions Capillary DB-5 (Agilent Technologies) Split Ratio : 50 250oC 310oC o 100oC 30 C o (10 C/min) He (99.999%) 1.2 ml/min FID (Flame Ionization Detector) 1 µl. . Journal of KoSSGE Vol. 8, No. 3, pp. 37~44, 2003. Fig. 3. A Experimental System for the Adsorption Process. Nê¢ 310 C .~& . þöB ÒÏB ªCf Table 2f ? . o. Detector. ²ª NO þ. þf öæÚ~ MTBE~ OßWj 2k~V * ²ª þ" B 'Ïçö MTBE~ OßWj J ¢" þb ¾*Úê . ²ª þf öæÚ~ Vö V OßWj 2 k~V * Ïï £ 300 ml BOD ÷j Ï~&b , MTBE ³ê¢ 10 mg/l, 25 mg/l, 50 mg/l ª~. ~& . O þf öæÚ¢ BOD ÷ö Iæ pf blankf öæÚ~ Vö V¢ ;{~² Z²¢ ÒÚ 5 g, 10 gj IÚ &j ê MTBE Ïj Ij r & ³~² ~ >Bö ~ ¶ j ²b ~&b, Head-space¢ ²z >² ~& . MTBE¢ If BOD ÷j 25 C& Fæ>º N v>Vö IÚ ï; ³ê& F rræ £ 48 *j v> ~& . v> êö : 40 ml ~ :âö Îú" 1:1 Ï ºÂ ê vortex mixing" .r2 ºÂ" ?f *¾Ò êö GC ªC~ & . '' þöº Blank¢ ò Ú ~& . 2.3.2. o. ¢" þ öæÚ~ MTBE~ O îB ßWj 2k~V * FÒÒî B Fig. 3" ? çã 3 cm ^ 50 cm ~ ¢"j B·~& . B·B ¢"ö &jB öæÚ¢ Ïê êö micro tube pump¢ Ï~ £ 2.5 ml/min ~ ³ê 10 mg/l~ MTBE Ïj çË~ "«~&. . ¢"~ Öf Teflon tube¢ Ï~& . ò j º ' ¢"j Û"~ ¾Jº Ïj 30 mlO Vialö 2.3.3.
(5) 2ê öæÚ¢ Ï >wãÚö & . 41. Table 3. The Result of Batch Test I Batch Group. Mass of Ground Rubber (g). Blank A1) A B2) B C3) C. 0.00 5.00 10.00 5.00 10.00 5.00 10.00. Initial Concentration of MTBE (mg/l) 10 mg/l 10.00 10.00 10.00 10.00 10.00 10.00 10.00. Equilibrium Concentration (mg/l). Mass of MTBE Sorbed per Gram of Ground Rubber (mg/g). 8.75 7.86 6.16 8.06 7.59 8.16 7.19. 0.059 0.085 0.046 0.038 0.039 0.051. Initial Concentration of MTBE (mg/l) 25 mg/l 25.00 25.00 25.00 25.00 25.00 25.00 25.00 50 mg/l 50.00 50.00 50.00 50.00 50.00 50.00 50.00. Equilibrium Concentr-ation (mg/l). Mass of MTBE sorbed per Gram of Ground Rubber (mg/g). 21.55 17.72 16.13 18.35 17.07 19.81 18.82. − 0.253 0.179 0.211 0.148 0.115 0.090. 46.17 38.26 34.21 46.17 40.66 41.22 37.06. − 0.522 0.395 0.364 0.290 0.327 0.301. Table 4. The Result of Batch Test II Batch Group. Mass of Ground Rubber (g). Blank A1) A B2) B C3) C. 0.00 5.00 10.00 5.00 10.00 5.00 10.00. Blank 0.00 A1) 5.00 A 10.00 B2) 5.00 B 10.00 C3) 5.00 C 10.00 1.18 mm 1) A : Tire Size 2) B : Tire Size 1.18 mm to 4.75 mm 3) C : Tire Size 4.75 mm. . ç7 ~&b, ' òº Fï 100 ml¢ Û"~&j rî j ê ³ê¢ G;~& . Ö"¢ ªC r &»j *' Fïb ~ Ö"¢ ¾* ¾æÚ 2"6 5 ÎNj G;~& . 3.. þ Ö". ²ª NO þ Ö" Table 3" 4º öæÚ~ Vê MTBE¢ 10 mg/l, 25 mg/l, 50 mg/l ¢ '' "« çöB ''~ N O³ê¢ G;~ ¾æÞ Ö" 8 . 1.18 mm ~~ 3.1. öæÚ~ ãÖö 10 mg/l~ MTBE¢ O Ö", öæÚ g & 0.085 mg O>î . Vö j £ 2V z ô O>îrj r > ®î . 6 25 mg/l. 50 mg/l~ MTBE Ïb þ Ö"ê îR&æ, öæÚ~ V& ·j> z ôf MTBE ¢ O~& . MTBE 50 mg/lb þ~&j r 1.18 mm ~~ öæÚ~ g & Oïf £ 0.5 mg î . Vö j £ 2V z ô O>îrj r > ®î . Table 5º Batch þÖ"¢ Æ& Freundlich N Oj ¾æÞ © . Freundlich f &Ú Ôf ³ê Journal of KoSSGE Vol. 8, No. 3, pp. 37~44, 2003.
(6) ;ç*ÁÒ'Áç¢. 42. Table 5. Experimental Values of the Freundlich Isotherm Parameters for Sizes of Tire Freundlich Isotherm KF 1/n 1.11 A1) 8.67 10−3 B2) 3.85 10−3 1.17 3.36 10−3 1.29 C3) 1) A : Tire Size 1.18 mm 2) B : Tire Size 1.18 mm to 4.75 mm 3) C : Tire Size 4.75 mm n= Group. Ü Ü Ü. Ïî" Nêö V¢ 8 ;æº ç>. Correlation Coefficient 0.92 0.94 0.94. ~ 'öB ' , ¢>'b 1/n8" KF8 rº Freundlich ~ O' ÚöB ¸f OWj , KF8 · n8 rº O' Úö Ôf OWj . 6 n8 ·j rº ϳêö V¢ O ßû æz~º ³ê& ¸j rº ·^ OW j ² B . ¢>'b 1/n8 0.1~0.5¢ r O £² ¢Ú¾, 1/n 8 2ç bîf  OW . öæÚ~ O þ Ö", OBö & Ïî~ Oïj ¾æÚº Freundlich æ> KF 8 öæÚ V& &Ë ·f © ç&'b ¸² ¾æÒb, ¾ ^æ v &æ~ ãÖº jÝ~² ¾æÒ . º "Úê ³êöB öæÚ * îï OB MTBE~ ·. V~ öæÚ 1.18 mm ~~ ãÖ& z ©j ~ . V& ·j> z 9f 'j &æ ®V r^b ÒòB . ¢" þ Ö" MTBE 10 mg/l ¢ micro tube pump¢ Ï~ 2.5 ml/min~ F³b /~ FÂ>¢ 30 ml ¢ j~ Îúj Ï~ Ï ºÂ ê MTBE¢ ªC~& . Ò, 100 ml¢ F êö 30 ml¢ j ~ ªC~, 100 ml¢ F êö ò¢ j~& . O»j >~ *'Fï £ 1200 3.2.. ml ¢ rræ MTBE 10 mg/l ¢ /~& . Table 6f ¢" þ Ö"¢ ¾æÞ © . öæÚ¢ Ïê~æ p f ¢"j Ï~ ÿ¢ b :û þj ~ & . Ö", 10 mg/l~ MTBE& ï £ 9.2 mg/l~ ³ê F«>îrj r > ®î . ¢ :ûb V& 1.18 mm ~ öæÚf ~ v &æ «~~ æªj &ê öæÚ¢ ¢"ö Ï ê~ þj ~& . 1.18 mm ~~ öæÚ¢ çã 3 cm, ^ 50 cm~ ¢"ö 145 gj Ïê~& . 1.18 mm ç 4.75 mm~ ãÖº 165 g, Ò 4.75 mm ç ãÖº £ 185 g~ öæÚ¢ Ïê ê þj. ~& . öæÚ~ Vö V 2"6ræ~ *' Fïj G ; Ö", ^ &æ ãÖ Îv& jÝ Vö 2" & Úrrj r > ®î . *' Fï 550 ml¢ r 2"& ·>î . 2" *ræ~ ï ³êº 1.18 mm ~~ öæÚº £ 7.06 mg/lîb, 1.18 mm ç 4.75 mm~ ãÖº £ 7.51 mg/l î . 4.75 mm ç~ ãÖº £ 7.37 mg/l ¾æÒ . 2" *ræ~ ï³êf Batch þöB Freundlich Isothermj Ï~ Oïj êÖ~ Table 6ö *~& . 1.18 mm ~~ öæÚ& 1.18 mm ç 4.75 mm, 4.75 mm ç öæÚ £ 2V~ ö æÚ g MTBE Oïj & . º B Freundlich Isotherm~ KF 8" jfj r > ® . C vªö & ï MTBE~ ³ê¢ êÖ~ B OB ·j êÖ~& . &Ë ·f öæÚöB g £ 0.031 mg~ MTBE¢ O~&rj r > ®î . 6 ¾^æ v B «~~ öæÚ~ ãÖº Îv g £ 0.07 mg~ MTBE¢ O~& . Freundlich Isothermj Ï~ Sorption Capacity f B ï ³ê G;j ê êÖB MTBE~ O ïj jv~ Utilization Efficiency¢ êÂ~& . öæ. Table 6. The Result of Column Test Equilibrium Sorption Total Mass of Utilization Sorption Capacity Capacity at Average Accumulated Ground Efficiency at Breakthrough Batch Group Influent Concentration Volume Rubber (%) (mg/g) (mg/g) (ml) (g) Initial Concentration of MTBE : 10 mg/l &, Average Inlet Concentration of MTBE : 9.21 mg/l Blank 0 1200 − − − 145 1200 0.086 0.031 36.0 A1) B2) 160 1200 0.045 0.007 15.6 3) C 185 1200 0.044 0.007 16.4 Journal of KoSSGE Vol. 8, No. 3, pp. 37~44, 2003.
(7) 2ê öæÚ¢ Ï >wãÚö & . 43. b þ~&j r 1.18 mm ~~ öæ Ú~ g & Oïf £ 0.5 mgb ¾æÒ . 6 , Freundlich æ> KF 8f öæÚ~ V& ·f ©öB &Ë 8j & . 2. ^ &æ V~ öæÚ Îv, ¢"j Û *' Fï £ 550 ml¢ r¦V 2"& ·>î . 2" * ræ~ ï ³êº 1.18 mm ~~ öæÚº £ 7.06 mg/l îb, 1.18 mm ç 4.75 mm~ ãÖº £ 7.51 mg/l î . 4.75 mm ç~ ãÖº £ 7.37 mg/l ¾ æÒ . 3. B ¢" þj Û 1.18 mm ~~ öæÚ& 1.18 mm ç 4.75 mm, 4.75 mm ç öæÚ. £ 2V~ öæÚ g MTBE Oïj & . º B Freundlich Isotherm~ KF 8" jfj r > ® . 4. C vªö & ï MTBE~ ³ê¢ êÖ~. B OB ·j êÖ Ö", &Ë ·f öæÚöB g £ 0.031 mg~ MTBE¢ O~&rj r > ®î ¾^æ v B «~~ öæÚ~ ãÖº Îv g £ 0.07 mg~ MTBE¢ O~& . 5. Freundlich Isothermj Ï~ Sorption Capacityf B ï ³ê G;j ê êÖB MTBE ~ Oïj jv~ Ï ÎNj êÖ Ö", 1.18 mm ~~ öæÚ& £ 36%, ¾^æ v &æ «~~ öæÚº '' 15.6 %f 16.4%~ ÎNj ¾æÚî . f ?f þ Ö" 6 r, öæÚ~ V& ·j> ' Ã&~ MTBE¢ O > ®º ËKf z > ® . Ò MTBE~ O W Ë V~ Wêö j ÎÚææò, öæÚ~ ¾ª jÏ" Ò jÏj 6n , MTBE J"B æ~> ~ O î öæÚ~ Ïf ãB'bê, ~ã' bê F > ®bÒ¢ 'B . 6 Pilot ξ *ËöB, Air-Sparging ¾ Bioremediation" ?f In-Situ »" 'b 'ÏB , BÎN Ëç" ?f ÿ> çßÎ"(synergy effect)¢ V& > ®º ê jº~ . MTBE 50 mg/l. . Fig. 4. The Plots of Column Test Results ( 1.18 mm).. Úº 1.18 mm~~ © £ 36% ~ ÎNj ¾æÚî , ¾^æ v «~~ öæÚº '' 15.6%f 16.4%~ ÎNj ¾æÚî . ÎNf B ç' Batch þ Ö"f ¢" þÖ"¢ jv ©b ÎNf *Ëö B 'Ï > ®º &ËWj ¾æÚ " ® . B'b *Ëö O î öæÚ¢ ÒÏ~¶ , MTBE ö «~~ J"bî" ? Ò~ ®º ãÖ¾, b' >w~ ÆÒW, ¦æ~ ßWj Ϫ® J¢~æò, 1.18 mm ~~ öæÚ& &æº MTBE bî~ OßW" ÎNf Ϫ® 'Ï &ËW ® 'B .. r Fig. 4º ' V& öæÚ~ ¢" Ú~ MTBE Oj ¾æÚ ® . 5.. Ö 5 V. öBº &ºÖ ò~ Ö²B Î&>Ú ú ê~ VËj BF~ &VJ"bî~ Bj Î"'b 6²Êæò, Þbº >BF~ *Â Æ · 5 æ~>~ J"j FB > ®º bî MTBE (Methyl tertiary Butyl Ether)¢ &ç bî ~ öæ Ú¢ *ËÚ J"æ~> ;z » 7 ~¾ >wãÚ »~ O î ÒÏj ï&~& . ²ª þj Û B V& öæÚ~ MTBE O ßWj N Ob ï&~& . 6 ¢" þj ÛB 2"F (Breakthrough Curve)j Ò Ï ÎNj ~&b Öf r" ? . 1. ²ª þ~ Ö"¢ NOb ï& Ö", Freundlich Isotherm &Ë '~&b 1.18 mm ~~ öæÚ~ ãÖö 10 mg/l ~ MTBE¢ O Ö", öæÚ g & 0.085 mg O>î .. ^^ò ~ã;kÁï&ö, òÎ&B MTBE~ *W 5 &Ò jºWö & ^ ¾, (2002). 2. ¶êÞ, O , (ö&: Suzuki M.), ;JÂ6Ò, (2000). 3. ¶, fCj, B'z, Fÿ&, “öæÚ ~²'öB B >º Òf VV&ÊöB~ ëWJ"bî~ ;ï”, Æ 1.. Journal of KoSSGE Vol. 8, No. 3, pp. 37~44, 2003.
(8) ;ç*ÁÒ'Áç¢. 44. ϲ ¢^÷. , 13(1), pp. 213-220, (1993). 4. Kim, J.Y., Park, J.K. and Edil, T.B., “Sorption of Organic Compounds in the Aqueous Phase into Tire Rubber” Journal of Environmental Engineering, 123(9), pp. 827-835, (1997). 5. Park, J.K. Kim, J.Y., and Edil, T.B., “Mitigation organic compound movement in landfills by shredded tires.” Water Environment Research. 68(1), pp. 4-10, (1996). 6. Savolainen H., Pfaffli P., and Elovaara, E., “Biochemical effects of MTBE in extended vapor exposure in rats”, Arch. Toxicol. 57(4) pp. 285-288, (1995). 7. Kershaw, D.S., Kulik, C., and Pamukcu, S., “Ground Rubber : Sorption media for ground water containing benzene and o-xylene.” Journal of Geotechnical and Geoenvironment Engineering. 123(4), pp. 324-334, (1997). 8. Al-Tabbaa, A. and Aravinthan, T., “Natural clay-shredded tire mixtures as landfill barrier materials.” Waste Management 18(1) pp. 9-16, (1998). 9. Smith, C.C., Anderson, W.F., and Freewood, R.J., “Evaluation of shredded lyre chips as sorption media for passive treatment walls”, Engineering Geology, 60, pp. 256-261, (2000). 10. Willson, G.J., Druder, A., Suidan, M,T., and Venosa, A.D.,. Journal of KoSSGE Vol. 8, No. 3, pp. 37~44, 2003. 11.. 12.. 13.. 14.. 15.. “Biodegradation Kinetics of MTBE in Laboratory Batch and Continuous Flow Reactors.” Journal of Environmental Engineering. 128(9), pp. 824-829, (2002). Shih, T.C., Wangpaichitr, M., and Suffet, M., “Evaluation of Granular Activated Carbon Technology for the Removal of MTBE form Drinking Water.” Water Research 37, pp. 375385, (2002). Wihelm, M.J., Adams. V.D., Curtis J.G., and Middlebrock, E.J., “Carbon Adsorption and Air-Stripping Removal of MTBE form River Water.” Journal of Environmental Engineering. 128(9), pp. 813-823, (2002). Guerin, T.F., Horner, S., McGovern, T., and Davey, B., “An Application of PRB Technology to Petroleum Hydrocarbon Contaminated Groundwater.” Water Research, 36, pp. 1524, (2002). US EPA, Achieving Clean Air and Clean Water; The Report of the Blue Ribbon Panel on Oxygenates in Gasoline. EPA 420-R-99-021, (1999). Gunasekara, A.S., Donovan, J.A., and Xing, B., “Ground discarded tires remove naphthalene, toluene, and mercury from water.” Chemosphere, 41(8), pp. 1155-1160, (2000)..
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In this research, there is no consistent result that the outsourcing can give effects on business performance, but most of hypothesis indicates that
36 SEM Microphotographs of the Electrical Electrodes of the Burn Resistor PCB ((a): Before Vibration and Thermal Vacuum Test, (b): After Vibration and Thermal
In short, the finding of the study indicated that the students' interest, satisfaction, and participation in English are improved as a result of
As a result, exhibition booth development was carried out the basis of the study results. On that account, the result of the exhibition booth
In contrast, Chiropractic has shown better result than sports massage in the range of motion of the shoulder joint, Thoracic Scapular rhythm test, and the
2. The finite element is calculating using tension test of uni-direction 0° and 90°, compression test of uni-direction 0° and 90° and shear test results and, the results
The result based on the students’ survey showed that the majority of students had rarely experienced learning punctuation, and even the experienced
Sequential logic circuits’ outputs react to the current values on the input wires and to the past history of values on those same input wires....
