基于模型的评估主流酸盐/酸盐依赖的无氧甲氧化和低温颗粒污泥中的Anammox工艺
Shi Chen1, Sheng-Qiang Fan2, Guo-Jun Xie2
1Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, China.
The Science of the total environment
|September 2, 2023
概括
酸盐/酸盐依赖的无氧甲氧化 (n-DAMO) 与Anammox相结合有效地从废水中去除和甲. 一个新的模型准确地预测了低温的性能,实现了98%的总去除.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理工程 废水处理工程
- 生物地质化学循环的过程
背景情况:
- 亚酸盐/亚酸盐依赖的厌氧甲氧化 (n-DAMO) 与厌氧氧化 (Anammox) 结合,可以同时去除和减少甲排放.
- 在主流废水处理中,低温性能仍然是这些合工艺面临的重大挑战.
研究的目的:
- 为结合的n-DAMO和Anammox工艺开发和验证一个颗粒型污泥模型.
- 研究温度变化对去除和甲氧化的效率的影响.
主要方法:
- 构建一维颗粒式污泥模型,采用阿雷尼乌斯动力学来测量温度效应.
- 模型校准和验证使用20-10°C的膜颗粒污泥反应堆 (MGSR) 380天的运行数据.
- 在不同温度下模拟去除率,废水度和生物质分量.
主要成果:
- 该模型准确预测了去除的动力学,废水中的度和生物质分数.
- 结合的n-DAMO和Anammox工艺在颗粒型污泥系统中实现了98%的总去除效率.
- 尽管在较低的温度下微生物活性下降,但维持了0.55gL-1d-1的稳定去除率.
结论:
- 开发的模型为了解合的n-DAMO和Anammox过程提供了一个强大的框架.
- 颗粒式污泥系统显示出在低温下进行有效的主流废水处理的巨大潜力.
- 这些发现为优化工程系统的除和甲减缓提供了宝贵的见解.
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