通过膜过来减少细菌的再生潜力,用于不同类型的水和不同孔径的大小的水
Andreas Nocker1, Yassin Kaspareit1, Denise Windrich1
1IWW Water Centre, Mülheim, Germany.
Environmental technology
|March 3, 2025
概括
膜过显著降低了水中的细菌再生潜力,尽管程度因水类型而异. 本研究量化了超过对不同水源微生物繁殖的影响.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 水处理工程水处理工程
背景情况:
- 过水中的细菌再生长在非无菌环境中构成风险.
- 了解膜过后的再生潜力对于水的再利用和分配至关重要.
- 本土细菌有助于各种水母中的再生动力学.
研究的目的:
- 为了量化膜过后细菌再生潜力的减少.
- 为了研究细菌再生的动力学和程度在不同的水类型的过后.
- 评估超过对营养物质可用性和生物质去除的影响.
主要方法:
- 建筑水和处理的废水的超过.
- 饮用,河流和水库水的实验室规模的膜过 (0.45微米至0.05微米).
- 在7天和14天内监测细菌的再生.
- 过和未过的水样本之间的再生潜力的比较.
主要成果:
- 过可以在建筑水中减少7天的再生增长~69%,在经过处理的废水中减少~20%.
- 重生潜力的减少因水类而异:饮用水≥70%,河流/水库水约40%.
- 峰值再生发生在过的河水中最快 (4天),在过的饮用水中最慢 (14天).
结论:
- 膜过有效地减少了细菌的再生潜力,其有效性取决于水源和过参数.
- 过后细菌再生的动力学在不同水种之间存在显著差异.
- 需要对营养保留和生物质去除进行进一步的研究,以充分理解再生行为.
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