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刘广容, 姜华, 王松伟. Hybrid Technology of Bioleaching and Electrokinetics to Remediate Chromium Contaminated Sediments[J]. 2024, 47(S1): 150-154.
刘广容, 姜华, 王松伟. Hybrid Technology of Bioleaching and Electrokinetics to Remediate Chromium Contaminated Sediments[J]. 2024, 47(S1): 150-154. DOI: 10.19672/j.cnki.1003-6504.0162.23.338.
该文采用生物淋滤电动复合技术修复底泥,经生物淋滤后底泥中铬形态发生了改变,可交换离子态、碳酸盐结合态的铬含量比例明显增加,而铁锰氧化物结合态、硫化物及有机结合态以及残渣态的比例含量明显下降(可为电动修复底泥时铬的迁移提供有利条件)。单纯电动修复铬的去除率为32.6%,单纯生物淋滤铬的去除率为25.1%,淋滤去除率与底泥的pH值和氧化还原电位紧密相关。经生物淋滤电动复合处理后,铬的去除总量可达53.4%。生物淋滤电动复合技术对可交换的离子态、碳酸盐结合态、硫化物及有机结合态的铬去除率较高,特别是对碳酸盐结合态的铬去除率达到61.1%。实验表明电动生物淋滤技术具有协同作用,适合湖泊底泥铬污染治理。
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