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공학석사학위논문 사격장부지내 monopotassium phosphate 에의한 TNT 흡착증가가광분해에미치는영향 The influence on photodegradation by TNT sorption enhancement with monopotassium phosphate treatment 년 월 서울대학교대학원 건설환경공학부 임상순
사격장부지내 에의한 흡착증가가 광분해에미치는영향 지도교수남경필이논문을공학석사학위논문으로제출함 년 월서울대학교대학원건설환경공학부임상순임상순의석사학위논문을인준함 년 월
п
π
п
п
μ
Pseudo first-order rate constant (min -1 ) 0.025 0.020 0.015 0.010 0.005 0.000 0 5 10 15 20 25 Initial concentration of TNT (mg/l) 0.12 mw/cm2 0.8 mw/cm2 1.2 mw/cm2 4.2 mw/cm2
1.0 Residual Ratio (C/C 0 ) 0.8 0.6 0.4 0.2 ph 6.32 w/o UV ph 6.32 w/ UV 0.0 0 100 200 300 400 500 600 Time (min)
14 12 ph of TNT solution 10 8 6 ph 6.32 w/o UV ph 6.32 w/uv 4 2 0 100 200 300 400 500 600 Time (min)
100 aa TNT concentration (mg/kg) 80 60 40 20 TNT degration on soil w/ UV TNT degradation on soil w/o UV 0 0 1 2 3 4 5 6 Time (day)
TNT concentration (mg/kg) 100 80 60 40 20 0 aa No water addition Water contents between day 5.5 and 8.5 (50%) Water contents between day 5.5 and 8.5 (100%) 0 2 4 6 8 10 Time (day)
100 TNT concentration (mg/kg) 80 60 40 20 Field soil Fe_removal Fe_rem_Magnetite Fe_rem_Ferrihydrite Fe_rem_Goethite 0 0 2 4 6 8 10 12 Time (Day)
TNT concentration (mg/kg) 100 80 60 40 20 Field soil Fe_removal Fe_rem_Magnetite Fe_rem_Ferrihydrite Fe_rem_Goethite 0 0 2 4 6 8 10 12 Time (Day) TNT concentration (mg/kg) 100 80 60 40 20 Field soil Fe_removal Fe_rem_Magnetite Fe_rem_Ferrihydrite Fe_rem_Goethite 0 0 2 4 6 8 10 12 Time (Day)
100 TNT concentration (mg/kg) 80 60 40 20 Field soil Lime 1% Lime 5% 0 0 2 4 6 8 10 12 Time (Day)
log
0.25 TNT mass (mg) 0.20 0.15 0.10 1:5, no potassium 1:5, potassium 1% 1:5, potassium 5% 0.05 0.00 0 5 10 15 20 25 Time (hr)
100 TNT concentration (mg/kg) 80 60 40 20 Field soil Field_MKP 1% Field_MKP 5% 0 0 2 4 6 8 10 12 Time (Day) 100 TNT concentration (mg/kg) 80 60 40 20 Field soil Field_MKP 1% Field_MKP 5% 0 0 2 4 6 8 10 12 Time (Day)
100 TNT concentration (mg/kg) 80 60 40 20 Field soil Field_MKP 1% Field_MKP 5% 0 0 2 4 6 8 10 12 Time (Day)
100 TNT concentration (mg/kg) 80 60 40 20 Lime 1% Lime 5% Lime 1% + K 5% Lime 5% + K 5% 0 0 2 4 6 8 10 12 Time (Day)
6000 Sorbed K + concentration (mg/kg) 5000 4000 3000 2000 1000 No K+ leaching K+ leaching 1st K+ leaching 9th 0 0 5 10 15 20 25 30 Applied KH 2 PO 4 (%)
Sorbed TNT Concentration (mg/kg) 140 120 100 80 60 40 20 0 No K + leaching KH2PO4 1% KH2PO4 5% KH2PO4 10% KH2PO4 25% 0 2 4 6 8 TNT Aqueous Equilibrium Concentration (mg/l) 140 K + leaching (1st) Sorbed TNT Concentration (mg/kg) 120 100 80 60 40 20 0 KH2PO4 1% KH2PO4 5% KH2PO4 10% KH2PO4 15% 0 2 4 6 8 TNT Aqueous Equilibrium Concentration (mg/l)
140 K + leaching (9th) Sorbed TNT Concentration (mg/kg) 120 100 80 60 40 20 0 KH2PO4 1% KH2PO4 5% KH2PO4 10% KH2PO4 15% KH2PO4 20% KH2PO4 25% 0 2 4 6 8 TNT Aqueous Equilibrium Concentration (mg/l) 1000 Concentration of potassium (mg/l) 800 600 400 200 0 MKP 1% 5% 10% 15% 20% 25% 0 2 4 6 8 10 Leaching time