通过EcoRecover过程从废水中进行密集的微藻培养和三级回收
Hannah R Molitor1, Ga-Yeong Kim1, Elaine Hartnett2
1Department of Civil & Environmental Engineering, Newmark Civil Engineering Laboratory, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States.
Environmental science & technology
|April 30, 2024
概括
微藻污水处理有效地去除,将其作为生物质回收. 在光生物反应器中储存碳水化合物是黑暗条件下吸收的关键,使得有效的营养恢复成为可能.
科学领域:
- 环境工程 环境工程
- 微藻生物技术 微藻生物技术
- 废水处理 废水处理
背景情况:
- 混合社区微藻系统为营养回收和可再生碳原料生产提供了潜力.
- 优化和控制需要对其性能特征有更深入的了解.
- 三级去除是先进废水处理中的关键步骤.
研究的目的:
- 描述一个全尺寸的微藻废水处理系统 (Clearas EcoRecover) 的性能,用于三级去除.
- 研究混合藻类群体中的吸收和积累机制.
- 确定用于稳定和高效的去除的关键操作参数.
主要方法:
- 持续在线监测和长期现场监测一个568 m3·day−1的ClearasEcoRecover系统.
- 在现场进行批量实验,以评估吸收动态.
- 分析微生物群落组成和关键水质参数 (pH,性,溶氧).
主要成果:
- 该系统在3个月的冬季期间实现了0.03±0.03毫克-P·L-1的稳定废水总度.
- 在光生物反应器中储存碳水化合物被证明对支持在黑暗条件下吸收至关重要.
- 在混合藻类群体中观察到多酸盐的积累,这表明高效的回收.
- 核心微生物种群包括 *Chlorella spp. *, *Scenedesmus spp. 发生在一个地方. *,以及 *Monoraphidium spp. 这两种类型. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- 稳定的性能与接近中性的pH值,足够的性,以及透气溶解氧气节奏相关.
结论:
- 混合微藻系统是有效的三级去除和回收作为生物质在运营废水处理设施.
- 了解藻类生理学,特别是碳水化合物储存,对于优化吸收至关重要.
- 必须保持关键运行参数,以保持系统性能的一致性和高质量的废水.
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