从环境中分离出两种新型细菌菌体,可以帮助控制活性污泥发泡
Wenbin Xiong1, Bingxin Liu2, Han Lu1
1College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 101408, China.
Folia microbiologica
|February 16, 2024
概括
新型菌体P69和KYD2有效控制诺卡迪亚细菌,显著减少污泥泡,改善废水处理中的水质. 这为面临诺卡迪亚过度生长的污水处理厂提供了可持续的解决方案.
科学领域:
- 环境微生物学 环境微生物学
- 细菌学 细菌学是一门学科.
- 废水处理技术 废水处理技术
背景情况:
- 诺卡迪亚物种是已知的有线细菌,由于它们的疏水性质和附着在气泡中,导致污泥在通风中形成泡.
- 这种现象,即污泥泡,会对废水处理效率和废水质量产生负面影响.
研究的目的:
- 研究两种新型细菌菌体P69和KYD2在控制污泥发泡的诺卡迪亚物种中的有效性.
- 评估菌体应用对关键水质参数和污泥特征的影响.
主要方法:
- 隔离和表征两个新型细菌菌体 (P69和KYD2),其向Nocardia transvalensis和Nocardia carnea.
- 在实验室规模的空气试验装置中模拟污泥泡.
- 孤立菌体的应用,以评估它们对诺卡迪亚种群,度,污泥体积指数和泡消失时间的影响.
主要成果:
- 菌体应用显著降低了诺卡迪亚宿主水平,导致度降低了68%以上,污泥体积指数降低了25%以上.
- 与对照组相比,泡的消失加速了9小时.
- 菌体在模拟的污泥泡事件中有效抑制了诺卡迪亚的传播.
结论:
- 新型菌体P69和KYD2是有效的生物剂,可以控制废水处理中的诺卡迪亚诱导的污泥泡.
- 菌体疗法为管理污泥泡和改善污水处理厂的废水质量提供了一个有希望的,经济的和环保的解决方案.
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