| 添加剂对垃圾焚烧飞灰熔融特性的影响 |
| 摘要点击 3350 全文点击 1358 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 垃圾焚烧飞灰 熔融固化 重金属 添加剂 |
| 英文关键词 fly ash from MSWI melting and solidification heavy metal additive |
| DOI 10.13227/j.hjkx.20061127 |
|
| 中文摘要 |
| 研究制备了1种具有多重作用效果的飞灰熔融复合型添加剂，并选用上海和福州2种典型飞灰，利用荧光光谱仪和电感耦合等离子体质谱仪等仪器，分析了添加剂对飞灰熔融过程中的挥发率，流动温度，重金属固定率以及熔融渣的重金属浸出特性的影响。研究结果表明：添加10%添加剂可以将飞灰的流动温度降低150℃左右，挥发率降低10%～20%，重金属Cu和Pb的固定率提高了10%～20%，对重金属Zn的固定率可提高近40%；同时，采用我国毒性浸出方法和美国EPA的TCLP方法，分析测试熔融渣中重金属浸出量，结果证实几种重金属的浸出浓度均低于相应的标准限值。 |
| 英文摘要 |
| A kind of compound additive was studied and prepared in the paper, which associated with the many functions. Using typical fly ash of Shanghai and Fuzhou, the paper studied the effect of the additive on evaporation rate, flowing temperature, fixed rate of heavy metals and its leaching characteristics in melting slag in the process of melting fly ash. The result showed that the flowing temperature and the evaporation rate of fly ash could be respectively reduced approximately 150℃ and 10%～20%by adding 10% additive, and the fixed rate of heavy metals Cu and Pb increased 10%～20%, especially Zn, which could increase 40%. The amount of leaching heavy metals in melting slag were both under corresponding standard limits using either national toxicity leaching methods or TCLP of EPA. |
