| Impact of pyrolysis process on the chromium behavior of copr | |
| Zhang, Dalei1; He, Shengbing1; Dai, Luwei1; Xie, Yaning2; Wu, Deyi1; Bu, Guanhua1; Peng, Kangjin1; Kong, Hainan1 | |
| 刊名 | Journal of hazardous materials
 |
| 2009-12-30 | |
| 卷号 | 172期号:2-3页码:1597-1601 |
| 关键词 | Pyrolysis Copr Sewage sludge Reduction |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2009.08.032 |
| 通讯作者 | Kong, hainan(hnkong@sjtu.edu.cn) |
| 英文摘要 | The effect of pyrolysis process with sewage sludge on the chromium behavior of chromite ore processing residue (copr) was examined in this study. the behavior of chromium was characterized in term of chromium oxidation test, ph-static leaching tests, column leaching test and sequential extraction test. as a sequence of pyrolysis process, the cr(vi) in copr was effectively reduced from 5057 mg kg(-1) for untreated copr to 8.6 mg kg(-1) for treated copr at temperature over 600 degrees c, which is far below the new jersey department of environmental protection regulatory limit of 240 mg kg(-1). as a result, the amount of exchangeable and carbonate-bound cr fractions, the most mobile for the environment, were largely reduced. at the same time, the amount of the other three cr fractions which are much less mobile become augmented. ph static test showed that the chromium in the treated copr at pyrolysis temperature above 400 degrees c was quite stable at ph > 7. column study also indicated that only negligible amount of chromium of the treated copr at above 600 degrees c can be released by the acid rain. (c) 2009 elsevier b.v. all rights reserved. |
| WOS关键词 | SEWAGE-SLUDGE ; ORE ; REMEDIATION ; RESIDUE ; DISPOSAL |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS类目 | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000271980800144 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2175951 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Kong, Hainan |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Dalei,He, Shengbing,Dai, Luwei,et al. Impact of pyrolysis process on the chromium behavior of copr[J]. Journal of hazardous materials,2009,172(2-3):1597-1601. |
| APA | Zhang, Dalei.,He, Shengbing.,Dai, Luwei.,Xie, Yaning.,Wu, Deyi.,...&Kong, Hainan.(2009).Impact of pyrolysis process on the chromium behavior of copr.Journal of hazardous materials,172(2-3),1597-1601. |
| MLA | Zhang, Dalei,et al."Impact of pyrolysis process on the chromium behavior of copr".Journal of hazardous materials 172.2-3(2009):1597-1601. |
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