垃圾焚烧飞灰中重金属的固化/稳定化处理研究
|
摘要
以某生活垃圾焚烧发电厂焚烧飞灰为研究对象,考察水泥固化-药剂稳定化协同处理技术对飞灰中重金属的稳定化效果。结果表明:当水泥掺入量为15%,Na2S投加量为0.6%时,Pb、Cd浸出浓度均能满足《生活垃圾填埋场污染控制标准》(GB16889-2008)中的入场填埋限值要求;与传统的水泥固化法相比,水泥固化协同药剂稳定化处理飞灰中重金属的效果更显著,具有良好的应用前景。
In this paper, the fly ash of a municipal solid waste incineration power plant was taken as the research object.The stabilization effect of heavy metals in fly ash by the cooperative treatment technology of cement solidification-chemical stabilization was studied. The results showed that : when the cement content was 15 % and the dosage of Na2 S was 0.6 %, the leaching concentrations of Pb and Cd could meet the landfill limit specified in the pollution control standard for domestic garbage landfill(GB 16889-2008). Compared with single cement curing method, cement curing synergistic agent stabilization had more significant effect on the treatment of heavy metals in fly ash.
In this paper, the fly ash of a municipal solid waste incineration power plant was taken as the research object.The stabilization effect of heavy metals in fly ash by the cooperative treatment technology of cement solidification-chemical stabilization was studied. The results showed that : when the cement content was 15 % and the dosage of Na2 S was 0.6 %, the leaching concentrations of Pb and Cd could meet the landfill limit specified in the pollution control standard for domestic garbage landfill(GB 16889-2008). Compared with single cement curing method, cement curing synergistic agent stabilization had more significant effect on the treatment of heavy metals in fly ash.
引文
[1]靳美娟.城市生活垃圾焚烧飞灰水泥固化技术研究[J].环境工程学报,2016,10(06):3235-3241.
[2]王勤,严建华,潘新潮,等.利用热等离子体熔融垃圾焚烧飞灰[J].浙江大学学报(工学版),2011,45(01):141-145.
[3]曲烈,刘志华,王超,等.垃圾焚烧灰-玻璃粉轻质陶粒重金属固化效应研究[J].四川建材,2016,42(06):84-86.
[4]徐颖,陈玉,冯岳阳.重金属螯合剂处理垃圾焚烧飞灰的稳定化技术[J].化工学报,2013,64(05):1833-1839.
[5]刘引,杨为中,孙晓龙,等.无机试剂无害化处理垃圾焚烧飞灰的研究[J].环境科学导刊,2015,34(05):72-77.
[6]李智.生活垃圾焚烧飞灰水泥固化预处理技术的改进研究[D].西南交通大学,2016.
[7]宁华宇.垃圾焚烧飞灰中氯离子洗脱及水泥固化研究[J].水泥,2018(12):9-12.
[8]杜渐.水泥固化技术用于垃圾焚烧飞灰的处理[J].河南建材,2017(04):13-14.
[9]周明凯,王彩萍,陈潇,等.水泥掺量对水泥-垃圾焚烧飞灰固化体性能的影响[J].水泥,2014(05):9-12.
[10]宋旭艳,韩静云,吕正勇,等.预处理飞灰与水泥的固化效果研究[J].混凝土与水泥制品,2013(11):86-88.
[11]刘彦博,商平,刘汉桥,等.垃圾焚烧飞灰固化/稳定化实验研究[J].环境卫生工程,2010,18(02):15-18.
[12]闵海华,韩正平,刘淑玲.生活垃圾焚烧厂飞灰固化方法的优化研究[J].环境卫生工程,2017,25(01):27-29.
[2]王勤,严建华,潘新潮,等.利用热等离子体熔融垃圾焚烧飞灰[J].浙江大学学报(工学版),2011,45(01):141-145.
[3]曲烈,刘志华,王超,等.垃圾焚烧灰-玻璃粉轻质陶粒重金属固化效应研究[J].四川建材,2016,42(06):84-86.
[4]徐颖,陈玉,冯岳阳.重金属螯合剂处理垃圾焚烧飞灰的稳定化技术[J].化工学报,2013,64(05):1833-1839.
[5]刘引,杨为中,孙晓龙,等.无机试剂无害化处理垃圾焚烧飞灰的研究[J].环境科学导刊,2015,34(05):72-77.
[6]李智.生活垃圾焚烧飞灰水泥固化预处理技术的改进研究[D].西南交通大学,2016.
[7]宁华宇.垃圾焚烧飞灰中氯离子洗脱及水泥固化研究[J].水泥,2018(12):9-12.
[8]杜渐.水泥固化技术用于垃圾焚烧飞灰的处理[J].河南建材,2017(04):13-14.
[9]周明凯,王彩萍,陈潇,等.水泥掺量对水泥-垃圾焚烧飞灰固化体性能的影响[J].水泥,2014(05):9-12.
[10]宋旭艳,韩静云,吕正勇,等.预处理飞灰与水泥的固化效果研究[J].混凝土与水泥制品,2013(11):86-88.
[11]刘彦博,商平,刘汉桥,等.垃圾焚烧飞灰固化/稳定化实验研究[J].环境卫生工程,2010,18(02):15-18.
[12]闵海华,韩正平,刘淑玲.生活垃圾焚烧厂飞灰固化方法的优化研究[J].环境卫生工程,2017,25(01):27-29.