平衡酸盐去除和能量利用在化物填充的三维生物膜电极反应器:最佳间歇电场调制
Qinglong Wang1, Li Zhang2, Maochang Liu3
1School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China.
Bioresource technology
|May 12, 2025
概括
在以三维生物膜电极反应器 (P3DBER) 系统为基础的自性脱化中,优化间歇电场策略可提高酸盐去除效率 (NRE) 并减少能源使用. 一个中等的开启/关闭比率 (3:3) 实现了95.96%的NRE,能源消耗最小.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 生物技术是生物技术.
背景情况:
- 废水中的酸盐污染对环境构成重大风险.
- 传统的脱方法经常面临能源效率和运行稳定的挑战.
- 需要新的反应堆设计来提高酸盐去除性能和可持续性.
研究的目的:
- 用三维生物膜电极反应器 (P3DBER) 优化基于矿的自性脱化间歇性电场策略.
- 为了实现高酸盐去除效率 (NRE),同时最大限度地减少能源消耗.
- 调查启/关比对系统性能和微生物群体稳定性的影响.
主要方法:
- 在不同间歇电场条件下,P3DBER系统的长期运行.
- 监测酸盐去除效率和能源消耗.
- 使用分子技术分析微生物社区结构.
- 功能性基因预测以确定酸盐减少途径.
主要成果:
- 一个中等的开启/关闭比率 (3:3在20mA) 显著提高了NRE到95.96%±1.46%.
- 在优化的条件下,能耗降至最低,为0.035 ± 0.002 kW·h/g NO3--N.
- 在低开启/关闭比率 (1:5-3:3) 下观察到稳定的微生物群落,主要由Thiobacillus,Desulfovibrio和Desulfomicrobium主导.
- 传统的非化和非模拟性酸盐降解为被确定为主要的酸盐降解途径.
结论:
- 在P3DBER中优化开/关比对于平衡NRE和能源效率至关重要.
- P3DBER系统展示了高性能,节能废水处理的有希望的方法.
- 这项研究为设计先进的除系统提供了宝贵的见解.
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