| 螯合型表面活性剂对垃圾焚烧飞灰改性的研究 |
| 摘要点击 2733 全文点击 2549 投稿时间：2004-07-24 修订日期：2004-11-20 |
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| 中文关键词 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 |
| 英文关键词 MSWI fly ash surface modification anionic chelating surfactant active ratio heavy metals |
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| 中文摘要 |
| 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. |
| 英文摘要 |
| 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℃. 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). |
