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高锰酸钾修复焦化高环多环芳烃污染土壤的效能研究

孟祥宇 王华伟 邹融雪 丁浩然 宋菁 杨乐巍 刘渊文 王亚楠 孙英杰

孟祥宇, 王华伟, 邹融雪, 丁浩然, 宋菁, 杨乐巍, 刘渊文, 王亚楠, 孙英杰. 高锰酸钾修复焦化高环多环芳烃污染土壤的效能研究[J]. 环境工程, 2024, 42(12): 237-244. doi: 10.13205/j.hjgc.202412028
引用本文: 孟祥宇, 王华伟, 邹融雪, 丁浩然, 宋菁, 杨乐巍, 刘渊文, 王亚楠, 孙英杰. 高锰酸钾修复焦化高环多环芳烃污染土壤的效能研究[J]. 环境工程, 2024, 42(12): 237-244. doi: 10.13205/j.hjgc.202412028
MENG Xiangyu, WANG Huawei, ZOU Rongxue, DING Haoran, SONG Jing, YANG Yuewei, LIU Yuanwen, WANG Yanan, SUN Yingjie. REMEDIATION EFFICIENCY OF HIGH-RING POLYCYCLIC AROMATIC HYDROCARBONS IN COKING CONTAMINATED SOIL BY USING POTASSIUM PERMANGANATE[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(12): 237-244. doi: 10.13205/j.hjgc.202412028
Citation: MENG Xiangyu, WANG Huawei, ZOU Rongxue, DING Haoran, SONG Jing, YANG Yuewei, LIU Yuanwen, WANG Yanan, SUN Yingjie. REMEDIATION EFFICIENCY OF HIGH-RING POLYCYCLIC AROMATIC HYDROCARBONS IN COKING CONTAMINATED SOIL BY USING POTASSIUM PERMANGANATE[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(12): 237-244. doi: 10.13205/j.hjgc.202412028

高锰酸钾修复焦化高环多环芳烃污染土壤的效能研究

doi: 10.13205/j.hjgc.202412028
基金项目: 

国家重点研发计划(2020YFC1807905)

国家自然科学基金项目(52370173)

东营市科技计划(2022ZD20)

详细信息
    作者简介:

    孟祥宇(1998-),男,硕士研究生,主要研究方向为污染土壤修复。1271495922@qq.com

    通讯作者:

    王华伟(1984-),男,博士,教授,主要研究方向为污染环境修复。wanghuawei210@163.com

REMEDIATION EFFICIENCY OF HIGH-RING POLYCYCLIC AROMATIC HYDROCARBONS IN COKING CONTAMINATED SOIL BY USING POTASSIUM PERMANGANATE

  • 摘要: 为了探究高锰酸钾(KMnO4)对焦化场地多环芳烃(PAHs)污染土壤的修复效果,以安徽合肥某PAHs污染土壤为实验对象,研究了KMnO4投加浓度、反应时间和液固比等因素影响下KMnO4对土壤高环PAHs的修复效果。结果表明:1)随着KMnO4浓度的增加,PAHs去除率随之增加,当KMnO4浓度为0.13 mmol/g时,ΣPAHs含量由污染原土的300.15 mg/kg下降至55.80 mg/kg,ΣPAHs去除率为81.41%,其中苯并[a]芘去除率高达97.06%;2)ΣPAHs去除率随着反应时间的延长而显著增加,反应2 h时ΣPAHs含量为64.33 mg/kg,去除率为78.57%,当反应时间延伸至48 h时,去除率增加至85.65%;3)不同液固比时 KMnO4对PAHs的去除率影响不大;4)由响应面分析可知,KMnO4浓度为0.21 mmol/g、反应时间32.50 h、液固比1∶1时,ΣPAHs去除率最高,为87.62%;5)KMnO4能够直接参与氧化PAHs或者通过副产物MnO2间接参与氧化PAHs,将高环PAHs转化为低环PAHs或多种中间体,并进一步分解为CO2和H2O。
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出版历程
  • 收稿日期:  2024-04-15
  • 网络出版日期:  2025-01-18

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