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添加剂对燃料式熔炉固化垃圾焚烧飞灰特性的影响

田书磊 王 琪 汪群慧 金 晶 胡小英 张兰河 李润东

田书磊, 王 琪, 汪群慧, 金 晶, 胡小英, 张兰河, 李润东. 添加剂对燃料式熔炉固化垃圾焚烧飞灰特性的影响[J]. 环境科学研究, 2007, 20(3): 102-107.
引用本文: 田书磊, 王 琪, 汪群慧, 金 晶, 胡小英, 张兰河, 李润东. 添加剂对燃料式熔炉固化垃圾焚烧飞灰特性的影响[J]. 环境科学研究, 2007, 20(3): 102-107.
TIAN Shu-lei, WANG Qi, WANG Qun-hui, JIN Jing, HU Xiao-ying, ZHANG Lan-he, LI Run-dong. The Effect of Additive on Solidification of MSWI Fly Ash by Fuel Furnace[J]. Research of Environmental Sciences, 2007, 20(3): 102-107.
Citation: TIAN Shu-lei, WANG Qi, WANG Qun-hui, JIN Jing, HU Xiao-ying, ZHANG Lan-he, LI Run-dong. The Effect of Additive on Solidification of MSWI Fly Ash by Fuel Furnace[J]. Research of Environmental Sciences, 2007, 20(3): 102-107.

添加剂对燃料式熔炉固化垃圾焚烧飞灰特性的影响

基金项目: 国家自然科学基金资助项目(20577047);国家高技术研究发展计划(863)项目(2002AA644010)

The Effect of Additive on Solidification of MSWI Fly Ash by Fuel Furnace

  • 摘要: 采用燃料式表面熔炉,以废旧石英玻璃粉代替纯SiO2作为添加剂,对杭州某生活垃圾焚烧厂的焚烧飞灰,连续进行了6个多月、处理规模为500 kg/d的熔融固化中试分析,主要研究了添加剂对焚烧飞灰的熔融温度、重金属固定率、熔渣中重金属的浸出质量浓度、烟气中二英和其他污染物排放水平的影响,同时探讨了整个系统的稳定性和可操作性. 结果表明:添加剂能有效降低飞灰的熔点,并使熔渣中重金属浸出质量浓度有所减少;同时也可显著提高重金属Cu和Zn的固定率,但对Pb,Cd和Cr的固定率影响不明显;当温度高于到达飞灰样品熔融温度时,所有飞灰样品的减容率均高于80%,飞灰样品的减容率依次为w(添加剂)为20%的飞灰>w(添加剂)为10%的飞灰>w(添加剂)为5%的飞灰>原灰. 二英总毒性当量浓度(以TEQ计)为0.053 ng/m3,远低于国家标准. 同时发现在一定运行条件下,排放烟气中其他污染物的排放浓度均符合国家相关标准,且运行期间系统稳定、可操作性强.

     

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  • 刊出日期:  2007-06-25

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