评估四种不同微藻类物种的氨毒性和生长动力学
Umut Metin1,2, Mahmut Altınbaş2
1Department of Environmental Engineering, Faculty of Civil Engineering, Yıldız Technical University, 34220 Istanbul, Turkey.
Microorganisms
|August 29, 2024
概括
微藻可以在废水中培养,但高含量是有毒的. 这项研究发现,Chlorella vulgaris和Arthrospira platensis可以耐受高度的氨,使它们适合废水处理.
科学领域:
- 环境微生物学环境微生物学
- 生物技术是生物技术.
- 污水处理 污水处理 污水处理
背景情况:
- 废水中的高氨度对微藻种植造成挑战,原因是毒性.
- 微藻提供了一个潜在的解决方案,可以从废水中去除营养.
- 了解不同微藻物种的氨耐受性对于优化种植至关重要.
研究的目的:
- 研究四种广泛使用的微藻类物种的氨耐受性和生长反应.
- 在不同的氨度下确定IC50值和特定增长率.
- 为了评估在高氨环境中选择的微藻的去除效率.
主要方法:
- 在批量反应堆中培养*Chlorella vulgaris*,*Chlorella minutissima*,*Chlamydomonas reinhardtii*和*Arthrospira platensis*的植物.
- 暴露于七种不同的化 (NH4Cl) 度在恒定的pH值8.
- 监测微藻生长,生物质生产和去除动力学.
主要成果:
- 各种物种的IC50值各不相同,其中*Chlamydomonas reinhardtii*的耐受性最低 (27.2 mg-FA/L),而*Arthrospira platensis*的耐受性最高 (44.44 mg-FA/L).
- *Chlorella vulgaris*在氨度高 (1700.95 mg/L) 的情况下表现出最大的生物质增长.
- *Arthrospira platensis*获得了最高的去除效率 (99.1%).
结论:
- 所有测试的微藻种都对城市废水中发现的氨含量有耐受性.
- *Chlorella vulgaris* 和 *Arthrospira platensis* 由于它们对氨的耐受性很高,因此在高强度废水中培养特别有希望.
- 这些发现支持使用特定的微藻菌株来有效处理废水和资源回收.
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