Preparation of biochar as a coating material for biochar-coated urea
文献类型：期刊论文
| 作者 | Jia, Yiman; Hu, Zhengyi; Mu, Jing; Zhang, Wantong; Xie, Zijian; Wang, Guoxi |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2020-08-20 |
| 卷号 | 731页码:1-1 |
| ISSN号 | 0048-9697 |
| 关键词 | Biomass pyrolysis Biomass feedstock Slow-release urea Adhesion of biochar to urea surface Biochar surface functional groups Grey correlation analysis |
| 英文摘要 | Biochar was used as a coating material for slow release urea. However, influence of biochar performance on preparing biochar-coated urea (BCU) and nitrogen release characteristics is rarely reported. In this study, total of 24 biochars were prepared and characterized from six biomass residues ( rice straw, chicken manure, vinasse, Phyllostachys pubescens, Arundo donax and sugarcane bagasse) at four pyrolysis temperatures (400-700 degrees C). Grey correlation analysis (GCA) was used to select biochar as a coating material for BCU based on biochar performance indicators. The feasibility (BCU formability) for preparing BCU and characteristics of nitrogen release in BCU based on hydrostatic dissolution test and soil column leaching experiment were evaluated. Biochar prepared at low pyrolysis temperature was not suitable as a coating material for BCU due to low specific surface area. Biochars derived from pyrolysis of Phyllostachys pubescens (B-P6), vinasse (B-V6) and rice straw (B-R6) at 600 degrees C were selected as coating materials for BCU based on grey correlation analysis (GCA). The adhesion of biochar to urea surface was related to biomass type that preparing biochar. B-V6 was recommended for use as coating material for BCU because the feasibility of the biochars followed the order B-R6 > B-V6 > B-P6, and the practicality of the biochars followed the order B-P6 > B-V6 > B-R6. The findings suggest that biochar with a high specific surface area, hydrophilic oxygen-containing functional groups and low pH is a suitable material for BCU. (C) 2020 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44980]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Jia, Yiman,Hu, Zhengyi,Mu, Jing,et al. Preparation of biochar as a coating material for biochar-coated urea[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,731:1-1. |
| APA | Jia, Yiman,Hu, Zhengyi,Mu, Jing,Zhang, Wantong,Xie, Zijian,&Wang, Guoxi.(2020).Preparation of biochar as a coating material for biochar-coated urea.SCIENCE OF THE TOTAL ENVIRONMENT,731,1-1. |
| MLA | Jia, Yiman,et al."Preparation of biochar as a coating material for biochar-coated urea".SCIENCE OF THE TOTAL ENVIRONMENT 731(2020):1-1. |
入库方式： OAI收割
来源：生态环境研究中心
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