在高度废水中发现和分析有效的微生物菌株,以实现 struvite 生物矿化
Bing-Bing Liu1, Rong-Ji Zhao1, Nimaichand Salam2
1Key Laboratory for Industrial Microbiology of Henan Province, School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang, 473000, People's Republic of China.
Antonie van Leeuwenhoek
|September 30, 2025
概括
这项研究确定了微生物菌株,包括Halomonas olivaria MG-4及其突变MG-4 ((100s-3),通过斯特鲁维特生物矿化,即使有铜离子污染,也能有效地从高盐度鱼类加工废水中回收和.
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.
- 废水处理 废水处理
背景情况:
- 高盐度废水,如鱼类加工废水 (FPW),由于盐度变化和重金属存在,对营养恢复提出了挑战.
- 斯特鲁维特生物矿化是同时去除和回收和的有希望的方法,但其效率受到高盐和铜离子度的阻碍.
研究的目的:
- 在高盐度条件下选能够产生 struvite 的微生物菌株.
- 研究盐 (NaCl) 度对合成FPW处理效率的影响.
- 为了增强微生物对铜离子的耐受性,并通过突变生成改善高盐度的晶体生产.
主要方法:
- 在广泛的盐度范围 (高达21%的NaCl) 中对微生物进行选,以生产 struvite.
- 评估关键参数:矿化过程中的产量,pH值,酸盐和离子水平.
- 应用ARTP突变发生来开发突变菌株,具有增强的铜耐受性和10%NaCl的晶体产量.
主要成果:
- 54种微生物物种被确定为斯特鲁维特生产,在5%的NaCl中实现了高 (P) 和 (Mg) 的去除.
- 哈洛莫纳斯奥利瓦里亚MG-4表现出广泛的盐分耐受性,在5%NaCl下具有高P回收 (67%) 和在8-10%NaCl下具有持续的回收 (48-50%).
- 突变菌株MG-4 ((100s-3) 在8-10%的NaCl下保持了高的P和Mg去除/恢复效率,并表现出对铜离子 (0.4-1.6mM) 的增强耐受性.
结论:
- 哈洛莫纳斯奥利瓦里亚MG-4及其突变MG-4 ((100s-3) 是高盐度FPW中有效地进行 struvite生物矿化的一种有价值的微生物资源.
- 开发的突变菌株提供了强大的废水处理和资源回收的潜力,即使存在铜离子.
- 这些发现支持微生物结构沉的应用,以实现对具有挑战性的工业废水的可持续管理.
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