研究论文
王文峰,秦勇,宋党育.燃煤电厂中微量元素迁移释放研究[J].环境科学学报,2003,23(6):748-752
燃煤电厂中微量元素迁移释放研究
- Study on the mobility and release of trace elements in coal-fired power plant
- 基金项目：中国煤田地质总局重点科学技术项目“中国洁净煤地质研究”(7F0257)部分资助
- 作者
- 单位
- 王文峰
- 中国矿业大学资源学院,江苏徐州 221008
- 秦勇
- 中国矿业大学资源学院,江苏徐州 221008
- 宋党育
- 中国矿业大学资源学院,江苏徐州 221008
- 摘要：基于原煤、飞灰及底灰的测试分析,对晋北一家燃煤电厂中硫等43种元素向环境的迁移释放作了定量研究.结果表明:Al等30种元素基本留在固体燃煤产物中;As等10种元素部分留在固体燃煤产物中,部分挥发到大气中;元素Br、Hg及硫基本挥发到大气中;各元素的挥发程度与自身的赋存状态及地球化学性质等有关.
- Abstract：Based on the analyses of the samples of raw coal,fly ash and bottom ash collected from a power plant from the Northern Shanxi,China,the mobility and emission of sulfur and 42 other elements in these samples were studied quantitatively.The results indicated that:Al and 29 other elements were primarily retained in solid combustion residues;As,Be,Cd,Na,Nb,Ni,P,Pb,Sb and Se were only partially retained in solid combustion residues and partially emitted to the atmosphere;Hg,Br and S were primarily emitted to the atmosphere;the volatile degree of the elements are controlled by their occurrence and geochemistry properties etc.;the mean concentrations of S,Hg and Be emitted form the power plant were calculated theoretically and exceed maximum limit of atmosphere environment standard,and more attention should be paid to them.
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