焚烧飞灰熔融过程重金属迁移特性中试研究  

Migration Characteristics of Heavy Metals During Pilot Melting Process of Incineration Fly Ash

作　　者：李润东[1] 李彦龙[1] 王雷[1] 王建平[1] 可欣[1] 

机构地区：[1]沈阳航空工业学院清洁能源与环境工程研究所,沈阳110034

出　　处：《环境科学》2007年第12期2873-2876,共4页Environmental Science

基　　金：国家自然科学基金项目(50606028)

摘　　要：通过中试试验研究垃圾焚烧飞灰熔融过程重金属Cd、Pb、Zn、Cu、Cr和Ni的迁移特性,着重研究重金属在熔渣中的固化效果,考察了温度(1290℃、1320℃、1360℃)、助熔剂(10%的玻璃粉)、冷却方式(水冷、空冷)对重金属固定率的影响.结果表明,温度的提高使Pb、Zn、Cu、Cr和Ni的固定率都有一定的提高;加入10%的玻璃粉使各种重金属的固定率都有显著提高,只有Zn例外;对Zn、Cu、Cr和Ni,空气冷却方式下的重金属固定率比水冷方式下的高.The characteristics of heavy metals（ Cd, Pb, Zn, Cu, Cr and Ni） were studied during pilot melting process of waste incineration fly ash, and it mainly focused on the solidification of those heavy metals in molten slag. The experiment factors include temperature （1 290 ℃, 1 320℃ and 1 360℃ ）, additive （10% glass powder）, slag cooling mode （water or air cooling ）, whose influence on the heavy metals＇ solidification in the molten slag was studied. The result shows： the solidification of the heavy metals（Pb, Zn, Cu, Cr and Ni） increase on certain degree with temperature＇s increasing; Adding 10% glass powder makes the solidification of heavy metals increase greatly except Zn; For Zn, Cu, Cr and Ni, the solidification using air cooling mode is higher than that using water cooling mode.

关 键 词：垃圾焚烧飞灰 熔融 中试 重金属 固定率 

分 类 号：X705[环境科学与工程—环境工程]