提高了效率和稳定性,使用一种新的基于元素硫的移动床脱工艺
Jia-Min Xu1, Hu-Yi Zi1, Hao-Ran Xu1
1State Key Laboratory of Urban Water Resources and Environment, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China.
Water research
|March 7, 2024
概括
使用元素硫进行脱的新型移动床反应器显著提高了营养物质去除效率. 这种先进的系统比传统的固定床反应堆提供了更稳定,更快的脱率.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 以元素硫为基础的脱 (ESDeN) 是一种具有成本效益的方法,用于从低有机水中去除营养.
- 传统的ESDeN固定床反应堆 (FixBR) 具有较低的脱率和长期性能问题.
研究的目的:
- 开发和评估一种具有增强性能的基于硫的新型元素脱移动床反应堆 (ESDeN-MovBR).
- 研究ESDeN-MovBR系统中提升的脱效率背后的机制.
主要方法:
- 一个螺丝旋转机被用来创建微流化硫颗粒在移动床反应堆内的垂直循环运动.
- 新型ESDeN-MovBR与传统的ESDeN-FixBR之间的性能比较,包括脱率和中间副产品分析.
- 对生物膜特性和液压保留时间的分析,以了解性能改进.
主要成果:
- 与ESDeN-FixBR相比,ESDeN-MovBR的脱率高出3.09倍,酸盐 (NO2-) 和氧化 (N2O) 的产量比ESDeN-FixBR低一级以上.
- 稳定的性能维持了100多天.
- 微流体化将实际的液压保留时间提高了80%以上,并导致含有自性脱剂的生物薄膜变得更薄.
结论:
- 在ESDeN技术中,ESDeN-MovBR提供了显著的进步,提供了卓越和稳定的脱性能.
- 微流体化和受控的生物膜特性是提高脱效率的关键因素.
- 这项研究强调了生物膜厚度管理在ESDeN系统中的重要性.
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