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从水产养殖水中去除微污染物,使用层层自组装的纳米过膜

Bowen Zhou¹, Juan Luo², Meng Jin³

¹Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China; University of Chinese Academy of Sciences, Beijing, 100049, China.

|December 18, 2024

概括

层层地空心纤维纳米过膜有效地从水产养殖水中去除微污染物. 这项创新技术为更安全的海鲜生产提供了具有成本效益的解决方案.

科学领域:

环境科学环境科学
水处理技术水处理技术
膜过器膜过器膜过器

背景情况:

水产养殖水中的微污染物 (MP) 对人类健康构成风险,但常规方法往往不足以消除它们.
需要先进的水处理技术,这些技术是高效的,具有成本效益,并且在MP清除方面具有很小的足迹.

研究的目的:

为了研究层次 (LBL) 空心纤维 (HF) 纳米过 (NF) 膜在处理真实水产养殖水中的有效性.
为了比较三个不同的LBL NF膜的性能,具有不同的表面化学和孔隙大小.

主要方法:

使用了三种类型的LBL NF膜,与不同的多电解质 (PE) 组装在一起.
在花/超/NF,花/NF和直接NF过程中评估了MPs去除率和运行稳定性.
进行了相关联热点分析,以将膜物理特性与MP移除效率联系起来.

主要成果:

在Floc/UF/NF过程中,LBL NF膜实现了近100%的MP去除,在直接NF过程中达到95%以上.
在所有测试过程中,在三个24小时周期中保持稳定的膜透率.
尺寸排除被确定为MP去除的关键因素,有机湿土是主要的污染物.

结论:

LBL空洞纤维NF膜代表了一种有前途的技术,可以有效地从水产养殖水中去除微污染物.
PSS/PAH膜表现出高性能和稳定性,具有低于0.75¥/水的成本效益运行.
了解污染机制,特别是有机湿土,对于优化真实应用中的膜性能至关重要.

关键词:

一层一层的层次.清除微污染物清除微污染物纳米过过程中的纳米过过程.绝缘效应,污染污染

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