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钢渣中重金属在水泥基胶凝材料的长期浸出行为

李沙 王肇嘉 王明威 郑永超 战佳宇

李沙, 王肇嘉, 王明威, 郑永超, 战佳宇. 钢渣中重金属在水泥基胶凝材料的长期浸出行为[J]. 环境工程, 2023, 41(3): 136-142. doi: 10.13205/j.hjgc.202303018
引用本文: 李沙, 王肇嘉, 王明威, 郑永超, 战佳宇. 钢渣中重金属在水泥基胶凝材料的长期浸出行为[J]. 环境工程, 2023, 41(3): 136-142. doi: 10.13205/j.hjgc.202303018
LI Sha, WANG Zhaojia, WANG Mingwei, ZHENG Yongchao, ZHAN Jiayu. LONG-TERM LEACHING BEHAVIORS OF HEAVY METALS FROM STEEL SLAG IN CEMENT-BASED CEMENTITIOUS MATERIALS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(3): 136-142. doi: 10.13205/j.hjgc.202303018
Citation: LI Sha, WANG Zhaojia, WANG Mingwei, ZHENG Yongchao, ZHAN Jiayu. LONG-TERM LEACHING BEHAVIORS OF HEAVY METALS FROM STEEL SLAG IN CEMENT-BASED CEMENTITIOUS MATERIALS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(3): 136-142. doi: 10.13205/j.hjgc.202303018

钢渣中重金属在水泥基胶凝材料的长期浸出行为

doi: 10.13205/j.hjgc.202303018
基金项目: 

国家重点研发计划项目(2018YFC1903602)

河北省科技重大专项(21283804Z)

详细信息
    作者简介:

    李沙(1990-),女,工程师,主要研究方向为固废制备建材的环境风险评价。13031188952@163.com

    通讯作者:

    王肇嘉(1965-),男,教授级高工,主要研究方向为工业固废制备绿色建材。Zhajiawang@123.com

LONG-TERM LEACHING BEHAVIORS OF HEAVY METALS FROM STEEL SLAG IN CEMENT-BASED CEMENTITIOUS MATERIALS

  • 摘要: 采用连续水槽浸出试验研究了钢渣在胶砂中重金属的长期浸出规律,并通过浸出动力学模型拟合预测了胶砂30 a重金属累积浸出量。结果表明:钢渣中含有As、Cr、Cu、Mn、Ni、Pb和Zn等重金属,制备成胶砂后Cr、Cu、Ni和Zn浸出量偏高。随着浸出时间的增加,溶液中重金属离子累积浸出量先快速增加后减缓;胶砂预先养护龄期越长,重金属累积浸出量越低,对重金属Zn的固化作用越明显。水泥胶砂中Cr和Ni、Cu和Zn的浸出规律分别符合Elovich方程和双常数速率方程,掺钢渣胶砂中Cu的浸出规律满足双常数速率方程,而Cr、Ni和Zn的浸出规律满足二级动力学方程。通过动力学方程计算,预测掺钢渣胶砂与纯水泥胶砂中Cr、Cu、Ni和Zn的30 a累积浸出量相比分别降低了49.52%、24.02%、47.20%和89.79%。
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出版历程
  • 收稿日期:  2022-03-31
  • 网络出版日期:  2023-05-26
  • 刊出日期:  2023-03-01

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