지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.10
- 수록면
- 413 - 420 (8page)
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초록· 키워드
오류제보하기
Objective of this study was to investigate adsorption characteristics and kinetic models of NH₄-N to biochar produced from rice hull in respective to mitigation of greenhouse gases. NH₄-N concentration was analyzed by UV Spectrophotometer. For the experiment, the soil texture used in this study was sandy loam soil, and application rates of chemical fertilizer and pig compost were 420-200-370 kg ha<SUP>-1</SUP> (N-P-K) and 5,500 kg ha<SUP>-1</SUP> as recommended amount after soil test for corn cultivation. Biochar treatments were 0.2-5% to soil weight. Its adsorption characteristic was investigated with application of Langmuir isotherm, and pseudo-first order kinetic model and pseudo-second order kinetic model were used as kinetic models. Adsorption amount and removal rates of NH₄-N were 39.3 mg g<SUP>-1</SUP> and 28.0% in 0.2% biochar treatment, respectively. The sorption of NH₄-N to biochar was fitted well by Langmiur model because it was observed that dimensionless constant (RL) was 0.48. The maximum adsorption amount (q<SUB>m</SUB>) and binding strength constant (b) were calculated as 4.1 mg g<SUP>-1</SUP> and 0.01 L mg<SUP>-1</SUP> in Langmuir isotherm, respectively. The pseudo-second order kinetic model was more appropriate than pseudo-first order kinetic model for high correlation coefficient (r<SUP>2</SUP>) of pseudo-second order kinetic model. Therefore, biochar produced from rice hull could reduce N₂O by adsorbing NH₄-N to biochar cooperated in sandy loam soil.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusion
References
참고문헌 (22)
참고문헌 신청
[학술지(정기간행물)] - Bouwman A. F. / 2002 / Emissions of N2O and NO from fertilized fields: Summary of available measurement data / Global Biogeochem Cycles 16 (4) : 6 ~ 13
[단행본] - Denman K. L. / 2007 / Climate change 2007: the physical science basis. Contribution of Working Group Ⅰ to the Fourth Assessment Report of the Intergovernmental panel on Climate Change / Cambridge universal press. Cambridge. United Kingdom and New York. NY. USA : 499 ~ 588
[학술지(정기간행물)] - Hamid S. B. A. / 2014 / Base Catalytic Approach: A Promising Technique for the Activation of Biochar for Equilibrium Sorption Studies of Copper, Cu (II) Ions in Single Solute System / Materials 7 (4) : 2815 ~ 2832
[학술지(정기간행물)] - Khalil, K / / Nitrous oxide production by nitrification and denitrification in soil aggregates as affected by O2 concentration / Soil Biol. Biochem 36 (4) : 687 ~ 699
[학술지(정기간행물)] - 김동진 / 2011 / 탈질에서 질소성분 및 유기탄소 농도가 N_2O 배출에 미치는 영향 / 청정기술 17 (2) : 134 ~ 141
[단행본] - Denman K. L. / 2007 / Climate change 2007: the physical science basis. Contribution of Working Group Ⅰ to the Fourth Assessment Report of the Intergovernmental panel on Climate Change / Cambridge universal press. Cambridge. United Kingdom and New York. NY. USA : 499 ~ 588
[학술지(정기간행물)] - Hamid S. B. A. / 2014 / Base Catalytic Approach: A Promising Technique for the Activation of Biochar for Equilibrium Sorption Studies of Copper, Cu (II) Ions in Single Solute System / Materials 7 (4) : 2815 ~ 2832
[학술지(정기간행물)] - Khalil, K / / Nitrous oxide production by nitrification and denitrification in soil aggregates as affected by O2 concentration / Soil Biol. Biochem 36 (4) : 687 ~ 699
[학술지(정기간행물)] - 김동진 / 2011 / 탈질에서 질소성분 및 유기탄소 농도가 N_2O 배출에 미치는 영향 / 청정기술 17 (2) : 134 ~ 141
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UCI(KEPA) : I410-ECN-0101-2016-521-002012954