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Influence of pyrolysis temperature and holding time on properties of biochar derived from medicinal herb (radix isatidis) residue and its effect on soil CO2 emission
Yuan, Haoran1,2; Lu, Tao1,2,3; Wang, Yazhuo1,2; Huang, Hongyu1,2; Chen, Yong1,2
2014-11-01
发表期刊JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
卷号110页码:277-284
摘要Radix isatidis is a wide-spread medicinal herb in China. The boiled radix isatidis residue contains considerable quantities of cellulose, hemicellulose, and lignin that could be used as feedstock for biochar production. This study aims to investigate the influence of pyrolysis temperature and holding time on biochar properties as well as the effect of biochar on soil CO2 emission in southern China. The biochar was prepared using pyrolysis over a temperature range of 300-700 degrees C and a holding time span of 10-180 min. The incubation experiment of soil incorporated with biochar lasted for 46 days. Increasing temperature and prolonging holding time were found to reduce the volatile matter content, strengthen the carbon enrichment, and grow aromatic structure, producing alkaline biochar that has weak surface polarity, high specific surface area and extensively porous structures. The effect of biochar on soil CO2 emission in southern China lays in the combined actions of biochar properties, especially of volatile matter, porous structure, and pH. Increasing temperature and extending holding time may convert the positive effect into a negative effect and reduce soil CO2 emission. (C) 2014 Elsevier B.V. All rights reserved.
文章类型Article
关键词Pyrolysis Biochar Radix Isatidis Soil Co2 Emission
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jaap.2014.09.016
研究领域[WOS]Chemistry ; Spectroscopy
关键词[WOS]BLACK CARBON BIOCHAR ; MICROBIAL ACTIVITY ; BIOMASS ; CHARCOAL ; SLUDGE ; RECOVERY ; ENERGY ; WASTE ; HUMUS
收录类别SCI
语种英语
WOS类目Chemistry, Analytical ; Spectroscopy
WOS记录号WOS:000347496800033
引用统计
被引频次:35[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10631
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Yuan, Haoran,Lu, Tao,Wang, Yazhuo,et al. Influence of pyrolysis temperature and holding time on properties of biochar derived from medicinal herb (radix isatidis) residue and its effect on soil CO2 emission[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2014,110:277-284.
APA Yuan, Haoran,Lu, Tao,Wang, Yazhuo,Huang, Hongyu,&Chen, Yong.(2014).Influence of pyrolysis temperature and holding time on properties of biochar derived from medicinal herb (radix isatidis) residue and its effect on soil CO2 emission.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,110,277-284.
MLA Yuan, Haoran,et al."Influence of pyrolysis temperature and holding time on properties of biochar derived from medicinal herb (radix isatidis) residue and its effect on soil CO2 emission".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 110(2014):277-284.
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