稳定化焚烧飞灰压块填埋工艺研究  

Study on Landfill Technology of Stabilized Fly ash Block

作　　者：赵由才[1] 李天[1] 周涛[1] 夏发发 Zhao Youcai;Li Tian;Zhou Tao;Xia Fafa(Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学,上海200092

出　　处：《山东化工》2020年第6期218-221,共4页Shandong Chemical Industry

基　　金：存余垃圾无害化处置与二次污染防治技术(SQ2018YFC1901400)。

摘　　要：本文对经过化学稳定化处理后的生活垃圾焚烧飞灰开展飞灰块状填埋模拟,成形稳定化飞灰压块具有良好的抗冲击性能,淋出液水质变化较为平稳,pH值较粉体填埋淋出液约降低1左右,氯含量平缓下降,TOC在监测期内始终维持在750mg/L以下。飞灰压块填埋能够减小渗滤液水质时空分布特征差异,降低填埋早期渗滤液可溶性组分大量溶出的概率,减少对渗滤液处理系统的冲击。In this paper,flying ash block landfill simulation of municipal solid waste incineration is carried out after chemical stabilization.Stabilized fly ash briquetting have good impact resistance performance,and the water quality of the forming briquette leachate changes relatively smoothly,the pH is reduced by about 1 compared with the powder landfill leachate.The chlorine content decreases gently,and the TOC remains below 750 mg/L during the monitoring period.Fly ash briquetting landfill can reduce the difference in the spatial and temporal distribution characteristics of leachate water quality,reduce the probability of large-scale dissolution of soluble components of leachate in early landfill,and reduce the impact on the leachate treatment system.

关 键 词：飞灰 压块 稳定化 填埋 

分 类 号：X799.3[环境科学与工程—环境工程]