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通过使用陶废物粉末载体的生物流化床来增强综合污水溢出中的去除:影响和机制

Zian Zhou¹, Xinyuan Zheng², Yinghao Hua²

¹Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University, Beijing, 100048, China.

Environmental science and pollution research international

|November 22, 2024

概括

微米大小的陶废物粉在高度粉体载体生物流化床中有效处理模拟污水. 这种方法增强了污泥的细胞外电子转移,加速了脱,符合严格的排放标准.

科学领域:

环境工程环境工程
废水处理技术废水处理技术
在环境应用中的材料科学.

背景情况:

传统的活性污泥 (CAS) 系统在联合下水道溢流 (CSO) 严格的污染物排放标准方面扎.
为生物流化床反应堆开发高效的载体对于提高废水处理性能至关重要.

研究的目的:

为了研究微米大小的陶废料粉末在高度粉末载体生物流化床 (HPB) 中作为载体的有效性,用于处理模拟的CSO.
阐明陶粉载体诱导的去除和微生物群落变化的机制.

主要方法:

使用微米大小的陶废物粉末 (<75微米和75-150微米) 作为HPB系统中的载体.
分析了污泥细胞外聚合物 (EPS),EPS电子转移能力,去除途径和微生物特征.
进行了电化学性能测试和元基因组学分析.

主要成果:

使用<75μm陶粉体载体的HPB系统始终符合中国严格的排放标准 (50 mg/L COD_Cr,15 mg/L总).
与CAS相比,在<75微米HPB中的泥EPS表现出明显更高的电子接受 (42.75%) 和捐赠 (32.73%) 能力.
甲基因组学揭示了与CAS相比,HPB系统中与脱化相关的Nor基因的相对丰度在28-39%更高.

结论:

微米大小的陶废料粉是处理民间组织中HPB系统的有效载体.
陶粉载体增强了污泥的细胞外电子转移能力,加速了脱.
使用陶废物粉的HPB系统显示了先进废水处理的巨大潜力.

关键词:

陶废料粉末的使用情况电子转移是通过电子方式进行的.这是HPB的HPB.转基因组学是指转基因组学.移除的方法移除的方法溢出污水的污水流量过多.

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