基于生物膜的系统应对废水中的抗生素清除:资源效率和过程弹性
Saurabh Mishra1, Liu Cheng2, Yanqing Lian3
1Yangtze Institute for Conservation and Development, Hohai University, Nanjing, 210098, Jiangsu, China; Institute of Water Science and Technology, Hohai University, Nanjing, Jiangsu, 210098, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, Jiangsu, China.
Chemosphere
|August 21, 2023
概括
生物膜系统有效降解废水中的抗生素. 最佳性能需要特定的生物膜厚度 (~1600微米),生物载体比率 (50-70%),C/N比率 (≥1) 才能有效去除抗生素.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 基于生物膜的系统提供了强大的稳定性,用于用冲击负载处理废水.
- 生物膜中的微生物群落对于降解抗生素至关重要.
- 系统性能取决于生物膜的特性,如类型,组成,生长和厚度.
研究的目的:
- 审查生物膜类型及其在含有抗生素的废水中的形成机制.
- 探索生物膜模型来预测系统性能和应用可行性.
- 在各种基于生物膜的系统中批判性地评估抗生素去除效率.
主要方法:
- 讨论不同的生物膜类型和形成机制.
- 探索生物膜模型用于性能预测.
- 对旋转生物接触器和膜生物膜生物反应器的批判性审查.
- 分析过程参数 (HRT,pH,生物载体比) 和微生物群落动态.
主要成果:
- 生物膜厚度约为1600微米,生物载体填充率为50-70%,蛋白质细菌的丰富增强了抗生素的生物降解 (>90%).
- 在溶解氧 (DO) 度≥3 mg/L的最佳操作是有效的.
- 一个C/N比率≥1被认为是消除抗生素污染的合适条件.
结论:
- 基于生物膜的系统对废水中的抗生素生物降解非常有效.
- 特定的操作参数和微生物组成是最大化效率的关键.
- 本综述为开发可持续的生物膜技术提供了真实废水处理的见解.
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