The objective of this research was to evaluate the possibility of application of New Biological Processes For TNT-Contaminated Soil. Three processes - aerobic composting reactor(A), sequential anaerobic-aerobic composting reactor(B) and intermittent aerobic composting reactor(C) were chosen. sandy l...
The objective of this research was to evaluate the possibility of application of New Biological Processes For TNT-Contaminated Soil. Three processes - aerobic composting reactor(A), sequential anaerobic-aerobic composting reactor(B) and intermittent aerobic composting reactor(C) were chosen. sandy loam was used for this research. Composting mixes wood chips(30%), sewage sludges cake(40%) contaminated RDX (hexahydro-1,3,5 - trintro-1,3,5-triazine) and HMX(octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraazocine) from Manufacture factory of explosives with 30% soil artifitially comtaminated by TNT and added water to 60% of moisture holding capacity and glucose as carbon source(C/N ratio: 25) to composting compound. Each Composting processes operated under mesophilic conditions(25-32℃) for 60 day. Concentration of initial TNT, RDX, and HMX in compost compound were 1027.98 mg/kg, 4032.92 mg/kg and 202.35 mg/kg, respectively. sample was taken from each reactor once five days and then it was analyzed. The first order kinetic model described the removal and biomass growth with higher correlation compared to the the zero order model. In each reactor TNT was removed rapidly. the removal rate of A, B, and C after 60 days of operation were 92.3%, 93.9%, and 92.1%, respectively. According to the this result, Composting was an emerging remediation processes for removal of TNT. Further, this research showed a strong relationship with comparison between the trend of TNT removal and the trend of Biomass growth. Concentration of 2-ADNT in each reactor was higher in B than in A and C after 60days of operation. and elimination of RDX estimated B reactor was better than that of A and C but although all the three reactors removed 88%, 89.3% and 75.2% of initial concentration of RDX. respectively, high concentration of RDX(431.12-1030mg/kg) was left in each reactor. and all the three reactors did not effectively eliminated relatively low concentration of HMX compared to TNT and RDX.
The objective of this research was to evaluate the possibility of application of New Biological Processes For TNT-Contaminated Soil. Three processes - aerobic composting reactor(A), sequential anaerobic-aerobic composting reactor(B) and intermittent aerobic composting reactor(C) were chosen. sandy loam was used for this research. Composting mixes wood chips(30%), sewage sludges cake(40%) contaminated RDX (hexahydro-1,3,5 - trintro-1,3,5-triazine) and HMX(octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraazocine) from Manufacture factory of explosives with 30% soil artifitially comtaminated by TNT and added water to 60% of moisture holding capacity and glucose as carbon source(C/N ratio: 25) to composting compound. Each Composting processes operated under mesophilic conditions(25-32℃) for 60 day. Concentration of initial TNT, RDX, and HMX in compost compound were 1027.98 mg/kg, 4032.92 mg/kg and 202.35 mg/kg, respectively. sample was taken from each reactor once five days and then it was analyzed. The first order kinetic model described the removal and biomass growth with higher correlation compared to the the zero order model. In each reactor TNT was removed rapidly. the removal rate of A, B, and C after 60 days of operation were 92.3%, 93.9%, and 92.1%, respectively. According to the this result, Composting was an emerging remediation processes for removal of TNT. Further, this research showed a strong relationship with comparison between the trend of TNT removal and the trend of Biomass growth. Concentration of 2-ADNT in each reactor was higher in B than in A and C after 60days of operation. and elimination of RDX estimated B reactor was better than that of A and C but although all the three reactors removed 88%, 89.3% and 75.2% of initial concentration of RDX. respectively, high concentration of RDX(431.12-1030mg/kg) was left in each reactor. and all the three reactors did not effectively eliminated relatively low concentration of HMX compared to TNT and RDX.
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#TNT 오염 토양 생물학적 처리 생물학적처리 공정 토양오염
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