Characteristic of heavy metals in biochar derived from sewage sludge
文献类型：期刊论文
| 作者 | Lu, Tao1,2,3 ; Yuan, Haoran1,2; Wang, Yazhuo1,2; Huang, Hongyu1,2; Chen, Yong1,2
|
| 刊名 | journal of material cycles and waste management
 |
| 出版日期 | 2016-09-01 |
| 卷号 | 18期号:4页码:725-733 |
| 关键词 | Sewage sludge Pyrolysis Biochar Heavy metal Toxicity |
| 英文摘要 | this study investigates the characteristic of heavy metals (pb, zn, cu, cd, cr, ni and as) in biochar derived from sewage sludge at different pyrolysis temperatures (300, 400, 500, 600 and 700 a degrees c). the heavy metal concentrations, chemical speciation distribution, leaching toxicity, and bio-available contents were investigated using icp-oes after microwave digestion, a sequential extraction procedure recommended by the community bureau of reference (bcr), an improved nitric acid-sulphuric acid method, and diethylenetriamine pentaacetic acid (dtpa) extraction method, respectively. the results showed that a great percentage of the heavy metals remained in biochar, the concentrations of heavy metals in biochar (except cd in b7) were higher than that in sludge, and the enrichment of the heavy metals in biochar enhanced with the pyrolysis temperature. although the effect of pyrolysis temperature on the chemical speciation distribution, the leaching toxicity and the bio-available contents of heavy metals in biochar was inconsistent, the potential risk of biochar on soil and groundwater contamination was lower than sewage sludge. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | environmental sciences |
| 研究领域[WOS] | environmental sciences & ecology |
| 关键词[WOS] | pyrolysis ; residues ; temperatures ; speciation ; conversion ; sizes |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000382120600014 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/11839]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Lu, Tao,Yuan, Haoran,Wang, Yazhuo,et al. Characteristic of heavy metals in biochar derived from sewage sludge[J]. journal of material cycles and waste management,2016,18(4):725-733. |
| APA | Lu, Tao,Yuan, Haoran,Wang, Yazhuo,Huang, Hongyu,&Chen, Yong.(2016).Characteristic of heavy metals in biochar derived from sewage sludge.journal of material cycles and waste management,18(4),725-733. |
| MLA | Lu, Tao,et al."Characteristic of heavy metals in biochar derived from sewage sludge".journal of material cycles and waste management 18.4(2016):725-733. |
入库方式： OAI收割
来源：广州能源研究所
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