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乙醇对过硫酸盐去除石灰岩含水介质中汽油组分BTEX的影响

邹志坤 陈余道 郑杲 陆仁骞 杨鹏飞 吴卫忠

周宁, 胡筱敏, 李鹏, 马文静. 乳状液膜法治理H酸生产废水的研究[J]. 环境工程, 2011, 29(4): 35-38. doi: 10.13205/j.hjgc.201104011
引用本文: 邹志坤, 陈余道, 郑杲, 陆仁骞, 杨鹏飞, 吴卫忠. 乙醇对过硫酸盐去除石灰岩含水介质中汽油组分BTEX的影响[J]. 环境工程, 2022, 40(12): 98-104. doi: 10.13205/j.hjgc.202212013
ZOU Zhikun, CHEN Yudao, ZHENG Gao, LU Renqian, YANG Pengfei, WU Weizhong. EFFECTS OF ETHANOL ON REMOVAL OF BTEX FROM GASOLINE BY PERSULFATE IN LIMESTONE AQUEOUS MEDIA[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(12): 98-104. doi: 10.13205/j.hjgc.202212013
Citation: ZOU Zhikun, CHEN Yudao, ZHENG Gao, LU Renqian, YANG Pengfei, WU Weizhong. EFFECTS OF ETHANOL ON REMOVAL OF BTEX FROM GASOLINE BY PERSULFATE IN LIMESTONE AQUEOUS MEDIA[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(12): 98-104. doi: 10.13205/j.hjgc.202212013

乙醇对过硫酸盐去除石灰岩含水介质中汽油组分BTEX的影响

doi: 10.13205/j.hjgc.202212013
基金项目: 

国家自然科学基金项目(41967028)

广西自然科学基金重点项目(2019GXNSFDA245030)

详细信息
    作者简介:

    邹志坤(1995-),男,主要研究方向为污染水文地质学、水资源保护与可持续利用。zzkun0319@163.com

    通讯作者:

    陈余道(1965-),男,教授,主要研究方向为污染水文地质学、水资源保护与可持续利用。cyd0056@vip.sina.com

EFFECTS OF ETHANOL ON REMOVAL OF BTEX FROM GASOLINE BY PERSULFATE IN LIMESTONE AQUEOUS MEDIA

  • 摘要: 随着乙醇汽油的推广应用,其污染岩溶地下水的环境问题受到越来越多的关注。汽油组分苯、甲苯、乙苯和二甲苯(BTEX)可以被过硫酸盐(PS)化学氧化作用有效去除。然而,乙醇的存在是否影响PS去除BTEX尚缺乏深入研究。利用石灰岩颗粒为介质,以汽油组分BTEX(总浓度为20 mg/L)和乙醇(浓度分别为500,5000 mg/L)为污染物,通过微元体(Microcosm)实验模拟污染的岩溶地下水环境,研究PS分别去除BTEX和乙醇,以及同时去除BTEX和乙醇的效果,讨论了乙醇对PS去除BTEX的影响。结果表明:前28 d,PS可以去除91%的BTEX,准一级动力学常数为0.006~0.349 d-1,其中苯最难去除,其次为甲苯。乙醇能够被PS有效去除,准一级动力学常数为0.003~0.054 d-1,去除速率小于BTEX;乙醇与BTEX共存时能够抑制BTEX的去除,但不会影响BTEX去除的优先性。PS浓度增大,有利于去除乙醇和BTEX,但会抑制微生物活性,促使pH值下降,并导致CaSO4沉淀。该试验结果可为乙醇汽油污染岩溶地下水的原位化学氧化研究提供科学参考。
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出版历程
  • 收稿日期:  2021-11-29
  • 网络出版日期:  2023-03-23

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