| 固体垃圾与污水污泥混烧中重金属迁移特性的研究 |
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| 引用本文： | 宋丽华.固体垃圾与污水污泥混烧中重金属迁移特性的研究[J].安徽化工,2012,38(3):61-63. |
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| 作者姓名： | 宋丽华 |
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| 作者单位： | 淮南联合大学化工系,安徽淮南,232038 |
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| 摘 要： | 进行了固体垃圾与污水污泥合成样品在管式焚烧炉内的混烧实验,采集样品进行化学成分分析,表征了污水污泥中的重金属在焚烧过程中向飞灰和烟气迁移的特性及对灰渣的毒性影响。结果表明,混烧显著提高了飞灰和底灰中重金属含量,其中Zn表现最明显。毒性测试结果显示,污水污泥的混烧导致了垃圾焚烧飞灰中Zn和Pb的浸出浓度超过中国危险废物浸出的控制标准值。
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| 关 键 词： | 污水污泥 重金属 底灰 热力学平衡 |
Transferring Characteristics of Heavy Metals during Co-incineration of Municipal Sewage Sludge and Solid Waste |
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| SONG Li-hua.Transferring Characteristics of Heavy Metals during Co-incineration of Municipal Sewage Sludge and Solid Waste[J].Anhui Chemical Industry,2012,38(3):61-63. |
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| Authors: | SONG Li-hua |
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| Affiliation: | SONG Li-hua (Dep. of Chemical Engineering, Huainan Union University, Huainan 232038, China) |
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| Abstract: | Co-incineration tests of a synthetic house hold waste with sewage sludge were carried out in a lab-scale tubal incinerator and bottom ash. Meanwhile, the fly ash from the tests with sewage sludge added presents toxicity due to them raked Zn and Pb leaching that exceeds the limit values legislated by National Environmental Law for Hazardous Solid Waste. Discrepancies between models predict ions and experimental results are evident, which indicates that considering the kinetics, oxygen content in the incinerator and possible chemical reactions between these heavy metal elements and other elements in the formation of metal chloride zaseous snecies is needed. |
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| Keywords: | sewage sludge heavy metal bottom ash thermodynamics equilibrium |
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