摘要
为了将生活垃圾焚烧底灰(MSWI-BA)进行资源化利用,基于响应面中心复合试验法(RSM-CCD)研究了不同活性激发方式对经过预处理的MSWI-BA水泥胶砂试块28 d抗压强度的影响.结果表明:活性激发MSWI-BA胶凝材料具有较好的胶凝活性;采用RSM-CCD得到,掺10%MSWI-BA水泥胶砂试块在最佳试验条件下的28 d抗压强度计算值为46.04 MPa,实测值为46.15 MPa,二者符合较好,为MSWI-BA的资源化利用提供了一种解决方法;MSWI-BA胶凝材料的安全性较好,重金属浸出性能满足GB 30760—2014《水泥窑协同处置固体废物技术规范》的要求.
To recycle the municipal solid waste incineration bottom ash(MSWI-BA),the effects of different active excitation methods on the 28-day compressive strength of mortar test blocks prepared by pretreated MSWI-BA were studied by the method of response surface central composite test method(RSM-CCD).The results show that the MSWI-BA cementitious material has good cementitious activity by active excitation.The RSM-CCD test simulates that the 28-day compressive strength of the cement mortar test block with 10%MSWI-BA reaches 46.04 MPa under the optimal experimental conditions.Under this condition,the 28-day compressive strength of the cement mortar test block reaches 46.15 MPa,which is highly coincident with the predicted value.This method provides a solution for the resource utilization of MSWI-BA.Finally,the safety of the cementitious material is evaluated.The leaching performance of heavy metals meets the requirements of GB 30760—2014 Technical Specification for Coprocessing of Solid Waste in Cement Kiln.
作者
刘心中
郇冬冬
丘琛辉
张梦成
杨康
LIU Xinzhong;HUAN Dongdong;QIU Chenhui;ZHANG Mengcheng;YANG Kang(School of Ecological Environment and Urban Construction,Fujian University of Technology,Fuzhou 350118,China)
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2024年第2期161-166,173,共7页
Journal of Building Materials
基金
“十三五”国家重点研发计划项目(2019YFC1904103)。
关键词
生活垃圾焚烧底灰
响应曲面法
中心复合设计
抗压强度
重金属浸出
municipal solid waste incineration bottom ash(MSWI-BA)
response surface method(RSM)
central composite design
compressive strength
heavy metal leaching
