评估木修改的酸盐和MS2细菌减少生物沙过器
Chunhwa Jang1, Hongxu Zhou2, Elbashir Araud3
1Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; These authors equally contributed to this paper.
Journal of water and health
|January 31, 2024
概括
用木片修改的生物砂过器有效地去除酸盐和MS2菌. 增加木含量可以增强酸盐的去除,但不会影响随着时间的推移病毒的去除性能.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 微生物学 微生物学
背景情况:
- 生物沙过器 (BSF) 广泛用于净化水.
- 探讨木修正案 (W-BSFs),以加强污染物去除.
- 酸盐和微生物污染物的去除是水质的关键参数.
研究的目的:
- 为了评估两种木片修改的生物砂过器配置 (过器A:33%的沙:67%的木片;过器B:50%的沙:50%的木片) 在去除MS2菌和酸盐方面的有效性.
- 为了研究不同砂与木片比率对过器性能的影响.
- 评估长期的去除效率和微生物社区动态.
主要方法:
- 建造和运行两个不同的木片修改生物沙器 (W-BSF).
- 在39周内监测酸盐和MS2菌体去除效率.
- 微生物社区分析使用16SrRNA测序来识别关键微生物参与者.
主要成果:
- 随着木比例的增加,酸盐的去除增加,在过器A中达到40%,高达40%.
- 两种过器都显示了持续的MS2菌去除 (大约2小时). 在研究期间,98.8%).
- 砂与木片比率的调整影响了酸盐的去除,但没有显著影响病毒的去除.
结论:
- 生物砂过器中的木修正可以优化,以提高酸盐的去除.
- 在长时间的运行期间,W-BSF 保持了强大的病毒清除能力.
- 脱的细菌,包括Streptomycetaceae,Pseudomonas和Bacillus,是减少W-BSF中的酸盐的关键.
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