| 螯合型表面活性剂对垃圾焚烧飞灰改性的研究 |
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| 引用本文： | 张后虎,钱光人,张晓岚. 螯合型表面活性剂对垃圾焚烧飞灰改性的研究[J]. 环境科学, 2005, 26(4): 195-199 |
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| 作者姓名： | 张后虎 钱光人 张晓岚 |
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| 作者单位： | 上海大学环境与化学工程学院 上海200072;上海大学环境与化学工程学院 上海200072;上海大学环境与化学工程学院 上海200072 |
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| 基金项目： | 上海市重点科技攻关项目(032312043-2) |
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| 摘 要： | 以垃圾焚烧飞灰的高附加值资源化和稳定化为目标,研究了螯合型表面活性剂对垃圾焚烧飞灰改性活化和对重金属的稳定螯合效果.通过活化指数和红外光谱分析,在改性剂用量7.0mL/100g飞灰、改性时间15min和改性温度75℃的条件下,ACS1改性飞灰的活化指数可达95%以上.美国环保局固体废弃物浸出毒性试验表明,螯合型表面活性剂对飞灰中重金属具有较强的束缚能力.
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| 关 键 词： | 焚烧飞灰 表面改性 螯合型表面活性剂 活化指数 重金属离子 |
| 文章编号： | 0250-3301(2005)04-0195-05 |
| 收稿时间： | 2004-07-24 |
| 修稿时间： | 2004-11-20 |
Modification of MSWI Fly Ash by Using Anionic Chelating Surfactant |
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| ZHANG Hou-hu,QIAN Guang-ren and ZHANG Xiao-lan. Modification of MSWI Fly Ash by Using Anionic Chelating Surfactant[J]. Chinese Journal of Environmental Science, 2005, 26(4): 195-199 |
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| Authors: | ZHANG Hou-hu QIAN Guang-ren ZHANG Xiao-lan |
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| Affiliation: | College of Environmental and Chemical Engineering, Shanghai University, Shanghai 200072, China. |
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| Abstract: | This paper aims at the reutilization and stabilization of municipal solid waste incineration (MSWI) fly ash to produce a high value added product. The effects of anionic chelating surfactants on the surface modification and fixing capacity of MSWI fly ash were primarily explored. Based on the indexes of active ratio and analysis of IR-spectrometer, the active ratio of ACS1 modified fly ash can be found higher than 95% under the condition of surfactant dosage at 7.0mL/100g fly ash, modification time at 15min and temperature at 75 degrees C . Moreover, Anionic chelating surfactant shows a strong fixing capacity for heavy metals by the United States Environmental Protection Agency's Toxicity Characteristic Leaching Procedure (TCLP). |
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| Keywords: | MSWI fly ash surface modification anionic chelating surfactant active ratio heavy metals |
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