Roles of pyrolysis on availability, species and distribution of Cu and Zn in the swine manure: Chemical extractions and high-energy synchrotron analyses
文献类型：期刊论文
| 作者 | Lin, Q; Liang, L; Wang, LH; Ni, QL; Yang, K; Zhang, J; Chen, DL; Yang, JJ; Shen, XD;张静; Chen DL(陈栋梁)
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2013 |
| 卷号 | 93期号:9页码:2094-2100 |
| 关键词 | Swine manure Metal Pyrolysis Carbonaceous material Speciation |
| 英文摘要 | Animal manures generally contain high levels of heavy metals that may pose a significant threat to soil and groundwater qualities. Pyrolysis as means of reducing metal availability in such feed stocks is recently encouraged, but systematic studies are currently lacking. The aim of this study was to assess the impact of pyrolysis temperature on the availability of Cu and Zn by chemical extraction, to determine the speciation of Cu and Zn by synchrotron-based X-ray spectroscopy, and finally to investigate the phase distribution of metal species in the carbonaceous materials by combining acid-base extractions and absorption spectroscopy data. The results showed that both Cu and Zn in the swine manure were mainly bound to organic functional groups. Cu (II) reduction and Cu (I)-S complexes were observed during the pyrolysis process. Zn species resembling ZnAc2 was still dominant, being 60.8-69.2%, and ZnS increased by 6.6-21.8% in the carbonaceous materials. The distribution of Cu and Zn in the mineral, carbonized and non-carbonized organic phases varied greatly with the pyrolysis temperature. The higher the temperature, the more the metals existed in the mineral phase and carbonized organic phase. The decrease of EDTA extractable Cu and Zn with pyrolysis temperature was due to the increase of metals in the carbonized organic phase and mineral phase. It is suggested that pyrolysis at the relatively higher temperature is a better choice for metal-containing manure according to the metal speciation, solubility and availability. (C) 2013 Elsevier Ltd. All rights reserved. |
| 学科主题 | Environmental Sciences & Ecology |
| 收录类别 | SCI |
| WOS记录号 | WOS:000327109300057 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224188]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Lin, Q,Liang, L,Wang, LH,et al. Roles of pyrolysis on availability, species and distribution of Cu and Zn in the swine manure: Chemical extractions and high-energy synchrotron analyses[J]. CHEMOSPHERE,2013,93(9):2094-2100. |
| APA | Lin, Q.,Liang, L.,Wang, LH.,Ni, QL.,Yang, K.,...&陈栋梁.(2013).Roles of pyrolysis on availability, species and distribution of Cu and Zn in the swine manure: Chemical extractions and high-energy synchrotron analyses.CHEMOSPHERE,93(9),2094-2100. |
| MLA | Lin, Q,et al."Roles of pyrolysis on availability, species and distribution of Cu and Zn in the swine manure: Chemical extractions and high-energy synchrotron analyses".CHEMOSPHERE 93.9(2013):2094-2100. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。