Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Characteristic of heavy metals in biochar derived from sewage sludge | |
Lu, Tao1,2,3 ; Yuan, Haoran1,2; Wang, Yazhuo1,2; Huang, Hongyu1,2; Chen, Yong1,2
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| 2016-09-01 | |
| Source Publication | JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
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| Volume | 18Issue:4Pages:725-733 |
| Abstract | 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. |
| Subtype | Article |
| Keyword | Sewage Sludge Pyrolysis Biochar Heavy Metal Toxicity |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| DOI | 10.1007/s10163-015-0366-y |
| WOS Subject Extended | Environmental Sciences & Ecology |
| WOS Keyword | PYROLYSIS ; RESIDUES ; TEMPERATURES ; SPECIATION ; CONVERSION ; SIZES |
| Indexed By | SCI |
| Language | 英语 |
| Funding Organization | National 973 Project of China(2011CB201501) ; National Science and Technology Program of the Twelfth Five-year Plan for rural development in China(2012BAD14B16-04) ; National Natural Science Foundation of China(51161140330) ; Pearl River Nova Program of Guangzhou(2013J2200008) ; Guangdong Science and Technology Program(2012B091400011) |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000382120600014 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/11839 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 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 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation 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. |
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