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修改丝状藻类营养洗器以改善废水处理和收获稳定性 - 与微藻类进行比较

Donna L Sutherland¹, Joel Burke²

¹Algal Solutions, Christchurch, New Zealand.

Journal of environmental management

|October 26, 2023

概括

丝状藻类营养 scrubbers (FANS) 显示出比高速藻类 mesocosms (HRAMs) 更高的生产率和更好的营养去除,特别是当被修改为模仿HRAP系统时. 风扇还提供卓越的生物质收获能力,使其成为一个有希望的基于藻类的废水处理技术.

科学领域:

环境生物技术环境生物技术
藻类废水处理藻类废水处理
资源回收利用资源回收利用

背景情况:

藻类在废水处理方面是有效的,如高速藻池 (HRAP) 和丝状藻类营养清洗器 (FANS) 等系统.
与HRAP相比,FANS存在一些局限性,包括较低和更可变的营养除去率.
高产农场的生产率较低,收获稳定性较差.

研究的目的:

调查修改FANS以模仿HRAP (作为HRAM) 是否改善FANS的局限性.
为了比较修改FANS (HRAM) 和HRAP之间的废水处理和资源回收效率.

主要方法:

在不同条件下 (例如,二氧化碳添加,充足) 的FANS和HRAM之间的生物质生产率和营养物质去除率的比较.
评估生物质的收获能力,特别是百分比的固体产量,有和没有脱水.
修改FANS操作以模仿HRAP液压保留时间 (HRT).

主要成果:

与HRAM (6.78.1 g m−2 d−1) 相比,FANS具有显著更高的生物质生产率 (10.519.0 g m−2 d−1),无论是否添加了CO2.
在FANS中,营养物质的去除率明显高于HRAM.
与HRAMs (0.040.11%) 相比,FANS在收获期间实现了明显更高的固体百分比收益率 (2.941%) .

结论:

修改FANS以模仿HRAP液压保留时间可以提高生物质生产率和营养物质的去除.
在FANS中的细丝藻类提高了收获能力,在不使用耗能方法的情况下产生更高的固体.
废水处理系统 (FANS) 显示出改善废水处理和资源回收的潜力,需要进一步进行全面的调查.

关键词:

高速藻类介质世界.微藻的生产力微藻的生产力微藻处理系统微藻处理系统移除营养物质移除营养物质营养物质清洗器营养物质清洗器

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