Low-cost field production of biochars and their properties

doi:10.1007/s10653-019-00458-5

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Low-cost field production of biochars and their properties
	Xiao, L ; Feng, LR ; Yuan, GD ; Wei, J
刊名	ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
	2019
关键词	Biowaste Exposure times Functional groups Cadmium Oxytetracycline
ISSN号	0269-4042
DOI	10.1007/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
文献子类	Article; Early Access
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.
WOS关键词	PYROLYSIS CONDITIONS ; BLACK CARBON ; SOIL ; BIOMASS ; REMOVAL ; WASTE ; ADSORPTION ; CHARCOAL ; SORPTION ; WATER
WOS研究方向	Engineering, Environmental ; Environmental Sciences ; Public, Environmental & Occupational Health ; Water Resources
语种	英语
WOS记录号	WOS:000495056200003
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]
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24815]
专题	烟台海岸带研究所_近岸生态与环境实验室
作者单位	1.Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Guangdong, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
推荐引用方式 GB/T 7714	Xiao, L,Feng, LR,Yuan, GD,et al. Low-cost field production of biochars and their properties[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2019.
APA	Xiao, L,Feng, LR,Yuan, GD,&Wei, J.(2019).Low-cost field production of biochars and their properties.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH.
MLA	Xiao, L,et al."Low-cost field production of biochars and their properties".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH (2019).