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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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In this study physical and chemical characteristics of rice straw ash (RSA) were analyzed in agricultural by-products such as the characteristics of soilpH, electric conductivity (EC), total phosphorus (T-P), available phosphate (Avail-P), and cation exchange capacity (CEC). The results showed that RSAis of mainly C in 95.74% and followed by Si > Al > P > Mg > K > Ca. The pH of RSA was high near 11 and the T-P concentration was2,322.38±10.35 mg/kg. The specific surface area of RSA was 123.50 m2/g, which was much lower than that of biochar. The X-ray diffraction (XRD)analysis indicated that RSA were C and Si based crystalline. TCLP and KSLT test results implied that the heavy metal concentrations were below theenvironmental standards and would not impose the risks. T-P concentration increased from 225.59±12.69 mg/kg to 593.39±17.36 mg/kg along with RSAmixing ratio to soil from 0% to 15%. Both pH and EC values were increased with the increase of RSA ratio. The changes in Avail-P and CEC werenot when RSA mixing ratio was 1%. whereas the Avail-P concentration was slightly increase when the mixing ratio was more than 5%. Additionalinvestigation considering receiving soil characteristics based on the results of this study would help effective application of RSA to soil.
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참고문헌 (25)
참고문헌 신청
2005 / ASTM D422, Standard test method for particle size analysis of soils. ASTM Standard 04. 08 / ASTM :10~17
J.J. Chew / 2011 / Recent advances in biomass pretreatment – Torrefaction fundamentals and technology / Renewable and Sustainable Energy Reviews 15(8):4212~4222
Badie S. Girgis / 2007 / X-ray Diffraction Patterns of Activated Carbons Preparedunder Various Conditions / Carbon Letters 8(2):95~100
홍성구 / 2015 / 열역학적 평형모델을 이용한 바이오매스 연료조건에 따른 합성가스 조성의 예측 / 한국농공학회논문집 57(1):79~87
S. Jeffery / 2011 / A quantitative review of the effects of biochar application to soils on crop productivity using meta-analysis / Agriculture, Ecosystems & Environment 144(1):175~187
J.J. Chew / 2011 / Recent advances in biomass pretreatment – Torrefaction fundamentals and technology / Renewable and Sustainable Energy Reviews 15(8):4212~4222
Badie S. Girgis / 2007 / X-ray Diffraction Patterns of Activated Carbons Preparedunder Various Conditions / Carbon Letters 8(2):95~100
홍성구 / 2015 / 열역학적 평형모델을 이용한 바이오매스 연료조건에 따른 합성가스 조성의 예측 / 한국농공학회논문집 57(1):79~87
S. Jeffery / 2011 / A quantitative review of the effects of biochar application to soils on crop productivity using meta-analysis / Agriculture, Ecosystems & Environment 144(1):175~187
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