开发一种稳定的生物炭-细菌混合系统,使用非N2O积聚脱剂,用于高强度酸盐废水处理的高效处理
Dewei Dai1, Shuyi Chu1,2, Qiankun Wang1
1College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China.
Bioprocess and biosystems engineering
|February 4, 2026
概括
一个新的生物炭细菌系统有效地去除高强度酸盐废水. 这种混合方法提高了稳定性,并在生物处理过程中防止有害的氧化 (N2O) 排放.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 材料科学 材料科学 材料科学
背景情况:
- 从高强度废水中去除生物酸盐面临着不稳定性,酸盐积累和N2O排放等挑战.
- 开发稳定高效的生物处理系统对于管理酸盐污染至关重要.
研究的目的:
- 创建一个协同的生物炭-细菌混合系统,用于高强度酸盐废水处理.
- 为了将一个非N2O积累的脱剂 (Citrobacter freundii XY-1) 与功能性生物炭 (BC550) 结合起来.
主要方法:
- 生物炭 (BC550) 是从在550°C下烧解的消耗的基质中生产的.
- 使用BC550生物炭和C. freundii XY-1运行一个连续流动的生物过器.
- 分析了酸盐去除效率,酸盐积累,N2O排放和微生物群落.
主要成果:
- 混合系统在100多天的高酸盐负载下 (1200 mg/L NO3--N) 达到>97.5%的酸盐去除效率.
- 废水中酸盐含量保持在3mg/L以下,N2O排放量得到缓解.
- 接种的C. freundii XY-1菌株的稳定主导地位 (39.7%) 证实了系统的弹性.
结论:
- 协同的生物炭-细菌系统为高强度酸盐废水提供了稳定和环保的解决方案.
- 将功能生物炭与特定微生物结合起来,提高了处理效率,并降低了N2O排放风险.
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