Xiao, L
; Feng, LR; Yuan, GD; Wei, J发表期刊ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
ISSN0269-4042
2019
页码10
关键词BiowasteExposure timesFunctional groupsCadmiumOxytetracycline
研究领域Engineering, Environmental; Environmental Sciences; Public, Environmental & Occupational Health; Water Resources
DOI10.1007/s10653-019-00458-5
产权排序[Xiao, Liang; Feng, Lirong; Wei, Jing] Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China; [Xiao, Liang; Feng, Lirong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Yuan, Guodong] Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Guangdong, Peoples R China
通讯作者Yuan, Guodong(yuanguodong@zqu.edu.cn)
作者部门海岸带环境过程实验室
英文摘要Biochar has been intensively investigated for carbon sequestration, soil fertility enhancement, and immobilization of heavy metals and organic pollutants. Large-scale use of biochar in agricultural production and environmental remediation, however, has been constrained by its high cost. Here, we demonstrated the production of low-cost biochar ($20/ton) in the field from Robinia pseudoacacia biowaste via a combined aerobic and oxygen-limited carbonization process and a fire-water-coupled method. It involved aerobic combustion at the outer side of biomass, oxygen-limited pyrolysis in the inner core of biomass, and the termination of the carbonization by water spray. The properties of biochar thus produced were greatly affected by exposure time (the gap between a burning char fell to the ground and being extinguished by water spray). Biochar formed by zero exposure time showed a larger specific surface area (155.77 m(2)/g), a higher carbon content (67.45%), a lower ash content (15.38%), and a higher content of carboxyl and phenolic-hydroxyl groups (1.74 and 0.86 mol/kg, respectively) than biochars formed with longer exposure times (5-30 min). Fourier-transform infrared spectroscopic (FTIR) spectra indicated that oxygen-containing functional groups of biochar played a role in Cd and oxytetracycline sorption though a quantitative relationship could not be established as the relative contribution of carbon and ash moieties of biochar to the sorption was unknown. Outcomes from this research provide an option for inexpensive production of biochar to support its use as a soil amendment in developing countries.
文章类型Article; Early Access
资助机构Chinese National Key Research and Development Program [2016YFD0200303]; Key Research and Development Program of Shandong Province [2016CYJS05A01]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41501522]
收录类别SCI
语种英语
关键词[WOS]PYROLYSIS CONDITIONS; BLACK CARBON; SOIL; BIOMASS; REMOVAL; WASTE; ADSORPTION; CHARCOAL; SORPTION; WATER
研究领域[WOS]Engineering, Environmental; Environmental Sciences; Public, Environmental & Occupational Health; Water Resources
WOS记录号WOS:000495056200003
引用统计被引频次：7[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24815
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Guangdong, Peoples R China
推荐引用方式
GB/T 7714Xiao, L,Feng, LR,Yuan, GD,et al. Low-cost field production of biochars and their properties[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2019:10.
APAXiao, L,Feng, LR,Yuan, GD,&Wei, J.(2019).Low-cost field production of biochars and their properties.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,10.
MLAXiao, L,et al."Low-cost field production of biochars and their properties".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH (2019):10.
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