一种自我隔离的耐酸性Parachlorella kessleri,在处理稀土采矿污水方面具有高效率
Mingmin Zheng1, Fumei Xu2, Yongjin He1
1College of Life Science, Fujian Normal University, Fuzhou, 350117, China; Engineering Research Center of Industrial Microbiology, Ministry of Education, Fujian Normal University, Fuzhou, 350117, China.
Environmental pollution (Barking, Essex : 1987)
|September 25, 2024
概括
绿藻Parachlorella kessleri FM2有效地从酸性稀土采矿废水中去除氨. 这种可持续的方法可以在没有调整pH值的情况下实现高的去除率,为工业废水处理提供了一个有前途的解决方案.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 废水处理 废水处理
背景情况:
- 稀土采矿产生含有高氨 (NH4+-N) 的酸性废水.
- 这种废水的有效和可持续的处理是环境的必要性.
- 传统方法通常需要性添加剂,增加成本和复杂性.
研究的目的:
- 评估Parachlorella kessleri FM2在处理高度酸性稀土矿业废水中的有效性.
- 评估P. kessleri FM2在各种培养条件下的氨去除能力.
- 为了研究P. kessleri FM2的抗酸机制.
主要方法:
- 绿藻菌株P. kessleri FM2的隔离和培养.
- 在光生物反应器中优化生长和NH4+-N去除条件.
- 在不同的培养模式下使用1.5-L和5-L光生物反应器进行规模化研究 (批量,半连续,连续).
- 对藻类的抗酸性进行初步分析.
主要成果:
- 在高酸性条件下,P. kessleri FM2在没有pH调整的情况下表现出强大的生长和高的NH4+-N去除.
- 在优化条件下,NH4+-N去除率为7.94 mg/L/d,在1.5L光生物反应器中,效率为98.71%.
- 在5L光生物反应器中,在半连续和连续培养中保持6.67 mg/L/d和6.79 mg/L/d的稳定NH4+-N去除率.
结论:
- P. kessleri FM2是一种高效和可持续的生物剂,用于处理酸性稀土矿业废水.
- 藻类在没有添加剂的酸性,高氨环境中壮成长的能力提供了一个具有成本效益的治疗解决方案.
- 对其抗酸机制的进一步研究可以增强其在工业废水处理中的应用.
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