文献类型：期刊文献

中文题名：垃圾焚烧飞灰除杂净化工艺研究

英文题名：Optimization of impurity removal and purification process for waste incineration fly ash

作者：张杰 赵冲 韦超 冉景榆 石贵 张飞旭

第一作者：张杰

机构：[1]贵州省高等学校化学外加剂科学与技术重点实验室,贵州理工学院,贵州贵阳550003;[2]贵州理工学院贵州磷石膏研究院,贵州贵阳550003;[3]贵州省磷氟资源高效利用协同创新中心,贵州理工学院,贵州贵阳550003

第一机构：贵州理工学院

年份：2026

卷号：55

期号：3

起止页码：592-596

中文期刊名：应用化工

外文期刊名：Applied Chemical Industry

收录：;北大核心:【北大核心2023】；

基金：国家自然基金(52268001);贵州省高校科学研究项目(黔教技〔2023〕022号,黔教技〔2023〕077号);贵州省普通高校青年科技人才培养项目(黔教合KY字〔2022〕348号);贵州省教育厅自然科学研究项目(黔教技〔2022〕001号);贵州理工学院高层次人才科研启动金(2023GCC055)。

语种：中文

中文关键词：垃圾焚烧飞灰;酸洗;水洗;XRD;SEM;EDS

外文关键词：incineration fly ash;acid washing;water washing;XRD;SEM;EDS

摘要：采取硫酸、磺化煤油、十二水磷酸钠和硫化钠等耦合技术对飞灰进行净化处理,再结合水洗工艺研究了贵州与云南两地某发电厂的垃圾焚烧厂飞灰中的重金属Zn、Pb、Cu、Ba和Cl去除效率。结果表明,Na_(2)S与Na_(3)PO_(4)·12H_(2)O的最优掺量分别为0.32 mmol和15 mmol,此时贵州中的重金属和氯的去除效率分别为98.11%,61.36%,90.3%,97.75%和94.37%,其去除率比较:Zn>Ba>Cl>Cu>Pb;云南中的重金属和氯的去除效率分别为96.05%,59.78%,87.59%,94.86%和87.42%,去除率比较:Zn>Ba>Cu>Cl>Pb。由XRD及SEM-EDS数据分析得出,飞灰净化后主要成分为Ca(OH)_(2)、NaCl和KCl等,重金属离子Zn、Pb、Cu、Ba含量明显减少。垃圾焚烧飞灰经过净化处理后,锌、铜、钡重金属离子和氯离子均达到了GB 16889—2024和HJ 1134—2020的标准含量要求。
The removal efficiency of Zn,Pb,Cu,Ba and Cl from fly ash of a power plant in Guizhou and Yunnan were studied by the coupling technology of sulfuric acid,sulfonated kerosene,sodium phosphate dodecahydrate and sodium sulfide.The experimental results showed that the optimal dosages of Na_(2)S and Na_(3)PO_(4)·12H_(2)O were 0.32 mmol and 15 mmol,respectively.At this time,the removal efficiencies of heavy metals and chlorine in Guizhou were 98.11%,61.36%,90.3%,97.75%,and 94.37%,respectively.The comparison of removal efficiencies was as follows:Zn>Ba>Cl>Cu>Pb;the removal efficiency of heavy metals and chlorine in Yunnan is 96.05%,59.78%,87.59%,94.86%,and 87.42%,respectively.The comparison of removal rate is:Zn>Ba>Cu>Cl>Pb.According to XRD and SEM-EDS data analysis,the main components of fly ash after purification are Ca(OH)_(2),NaCl and KCl,and the contents of heavy metal ions Zn,Pb,Cu and Ba are significantly reduced.After the waste incineration fly ash is purified,the content of Zn,Cu,Ba heavy metal ions and chloride ions meet the standard requirements of GB 16889—2024 and HJ 1134—2020.