利用垃圾焚烧飞灰固化污染底泥的实验研究  

Experimental Study on Solidifying Contaminated Sediment via Waste Incineration Fly Ash

作　　者：刘汉桥[1,2] 刘彦博[3,4,5] 张曙光[2] 郝永俊 

机构地区：[1]天津城市建设学院 [2]天津渤海环保工程有限公司 [3]天津科技大学 [4]扬州泰达环保有限公司 [5]江苏扬州225000

出　　处：《天津城市建设学院学报》2010年第1期29-32,共4页Journal of Tianjin Institute of Urban Construction

基　　金：建设部科技计划项目(2009-K7-25);国家自然科学基金青年科学基金资助项目(20806051);中国博士后科学基金资助项目(20080440680);天津市科技创新专项资金项目(08FDZDSF03400)

摘　　要：为探讨利用垃圾焚烧飞灰代替水泥进行污染底泥固化的可行性,研究了不同配比的底泥、水泥、垃圾焚烧飞灰的固化体抗压强度及浸出毒性.结果表明:固化剂中用20%的垃圾焚烧飞灰替代10%的水泥配置的固化体7.d,其抗压强度可达0.24.MPa,重金属浸出浓度低于毒性标准,固化体可进入固废填埋场填埋处置.In order to discuss the feasibility of solidifying contaminated sediment via waste incineration fly ash instead of cement,this paper studies the compressive strength and leaching toxicity of the solidified body containing different proportional ingredients such as sediment,cement and waste incineration fly ash.The results show that the compressive strength of the solidified body which is confected by 20% waste incineration fly ash instead of 10% cement in solidifying agent can reach 0.24 MPa during 7 days,and the leaching concentration of heavy metal in the solidified body is lower than the toxicity standard,and the solidified body will meet the requirement of landfills.

关 键 词：垃圾焚烧飞灰 底泥 水泥 重金属 

分 类 号：X705[环境科学与工程—环境工程]