沥青固化城生活垃圾焚烧飞灰的试验研究-环境科学学报.pdfVIP

第 24 卷第 4 期 环 　境 　科 　学 　学 　报 Vol . 24 ,No . 4 2004 年 7 月 ACTA SCIENTIAE CIRCUMSTANTIAE July ,2004 ( ) 文章编号 2004 　　　中图分类号 :X705 　　　文献标识码 :A 沥青固化城市生活垃圾焚烧飞灰的实验研究 严建华 , 马增益 ,彭 　雯 , 李晓东 , 李建新 , 岑可法　( 能源洁净利用与环境工程教 育部重点实验室 ,浙江大学热能工程研究所 , 杭州 　310027 ) 摘要 :对利用沥青固化城市生活垃圾焚烧飞灰的处理效果进行了实验研究. 探讨了沥青与飞灰以不同比例混合对飞灰重金 ( ) 属 Pb , Cr , Cd , Ni , Cu , Zn 固化效果的影响. 并对沥青与飞灰的质量比 mASm FA , 其中AS 代表沥青 , FA 代表飞灰 为 02 时作了进一步的研究 , 在此基础上加入不同比例的添加剂 S 和NaOH. 结果表明, 在沥青与飞灰的混合物中再加适当比例的 添加剂 , 对飞灰的固化效果大大提高. 关键词 :沥青 ; S ; NaOH ; 飞灰重金属 ; 固化效果 ; 重金属硫化物 Experimental study on solidif ication of MSW incinerator fly ash by mixing with asphalt ( YAN Jianhua , MA Zengyi , PENG Wen , LI Xiaodong , LI j ianxin , CEN kefa 　 Clean Energy and Environment Engineering Key Laboratory of Ministry of Education , Institute for Thermal Power Engineering , Zhejiang University , Hangzhou 　310027) Abstract :Experiments have been performed to study the effects of treating MSW (municipal solid waste) incinerator fly ash by mixing with asphalt . The influence of mAS mFA (masstomass ratio , AS is asphalt , FA is fly ash) on the immobilization of heavy metals (Pb , Cr , Cd , Ni , Cu , Zn) in fly ash was investigated. It was further studied at fixed mAS mFA (02) to investigate the effects of different proportions of additives ( sulfur and sodium hydroxide) on metal immobilization in the mixture of asphalt and fly ash based on the typical proportion . Experimental results showed that the immobilization of metals in fly ash was impr