基于自然的解决方案,使用生物增强的生物炭消除水中的毒素
Jane Moore1, Anjali Jayakumar2,3, Sylvia Soldatou1,4
1CyanoSol, School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen AB10 7AQ, U.K.
Environmental science & technology
|October 19, 2023
概括
一种新的生物炭材料有效地去除有害的毒素,并减少水中的菌. 这种可持续的,以自然为基础的解决方案提供了一种低成本的方法来打击饮用水供应中的有毒藻类繁殖.
科学领域:
- 环境科学 环境科学
- 水处理技术水处理技术
- 微生物学 微生物学
背景情况:
- 气候变化和高化加剧了淡水中有毒的蓝藻细菌的繁殖.
- 传统的水处理方法往往不足以去除蓝色细菌及其毒素.
- 通常需要昂贵的第三级治疗来解决这些花.
研究的目的:
- 开发一种可持续的,以自然为基础的解决方案,从供水中消除蓝藻细菌和蓝藻毒素.
- 从废弃的子中制造生物增强生物炭 (BEB),以固定有益的微生物.
- 评估BEB在去除微囊素-LR (MC-LR) 和菌细胞方面的有效性和可扩展性.
主要方法:
- 生物炭是从废弃的子中生产的,并作为微生物群落的支持,创造了BEB.
- 在11个月的时间里,BEB被接种了天然的湖水微生物组,并暴露在MC-LR,蓝藻细菌提取物和活细胞中.
- 监测了微生物殖民,毒素降解和蓝色细菌细胞数量的减少.
- 使用批量和连续热解来评估可扩展性,并对杂质和副产品进行安全评估.
主要成果:
- BEBs表现出毒素的快速消除,MC-LR度在48小时内降至0.1 ng/mL以下.
- 观察到蓝菌细胞数量 (1.6-1.9 log) 的显著减少.
- 加快降解与增强的微生物多样性和生物炭上微囊素降解细菌的存在有关.
- 通过批量和连续热解生产的BEB显示出一致的性能,杂质在可接受的安全限度内.
结论:
- 从废弃的子中获得的生物增强生物炭是一种有希望的,可持续的,可扩展的解决方案,用于去除毒素并减少菌的繁殖.
- 这种以自然为基础的方法为传统和三级水处理方法提供了具有成本效益的替代方案.
- 这项研究提供了安全有效的基于生物炭的水资源整治概念的证明.
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