中国海洋大学化学化工学院;青岛海洋科技中心海洋生态与环境科学功能实验室;中国海洋大学深海圈层与地球系统前沿科学中心;中国海洋大学海洋化学理论与工程技术教育部重点实验室;
本论文以山东东营某化工厂长期堆积的重污染含油污泥为研究对象,以外源微生物制剂和以麸皮、谷糠为代表的生物有机质为添加物,基于G-model追踪不同添加物对含油污泥中总石油烃(TPH)的降解率及降解速率的影响,考察不同添加物处理条件下含油污泥TPH的去除效果。结果表明:不含添加物的对照组含油污泥经过20 d处理后其TPH的降解率仅为3.98%,而添加外源微生物制剂、谷糠或麸皮后,降解率最高分别可达23.36%、28.64%和34.75%。外源微生物制剂协同生物有机质处理含油污泥,TPH的去除效果显著优于单独添加。麸皮与外源微生物制剂协同处理含油污泥能够达到TPH的最佳降解率41.05%。实现对含油污泥TPH最佳降解率的条件为含油污泥与麸皮的质量比为1∶0.5,外源微生物制剂添加比例为0.5%。在此条件下,TPH的平均降解速率kav为0.26 d-1,是对照组kav(0.000 85 d-1)的306倍。TPH降解率较高的处理体系,其降解速率也较快。添加外源微生物制剂和生物有机质是加快去除含油污泥TPH的有效措施,但需要确定不同外源物质的最适当添加比例才能获得最佳处理效果;而要提高含油污泥TPH的降解率,需要不断改变含油污泥所处的外部环境和处理方式。
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基本信息:
DOI:10.16441/j.cnki.hdxb.20240081
中图分类号:X78;X172
引用信息:
[1]刘慧,丁海兵.外源微生物与生物有机质协同修复含油污泥研究[J].中国海洋大学学报(自然科学版),2025,55(04):101-111.DOI:10.16441/j.cnki.hdxb.20240081.
基金信息:
山东省重点研究发展计划项目(2018GSF117044)资助~~