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同时的电凝和E-与页岩气产生的水处理水的超过膜相结合

Fan-Xin Kong¹, Yu-Xuan Chen¹, Yu-Kun Wang¹

¹State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil & Gas Pollution Control, China University of Petroleum, Beijing, 102249, China.

|April 2, 2024

概括

一种新的电凝--超 (ECP-UF) 工艺有效地减轻了页岩气产生的水处理中的膜污染. 与传统的EC-UF相比,这种先进的方法显著减少了污染,使得水的有效回收成为可能.

科学领域:

环境工程环境工程
水处理技术水处理技术
膜科学膜科学膜科学

背景情况:

由有机涂层颗粒造成的膜污染妨碍了页岩气产生的水 (SGPW) 的有效处理和回收.
现有的方法很难有效地减轻污染,限制了SGPW的重复使用.

研究的目的:

提出和评估一种新的混合电凝 (EC) 和E-的过程与超过 (ECP-UF) 相结合.
调查SGPW重复使用的UF污染缓解的有效性和阐明机制.

主要方法:

实施混合ECP-UF过程用于SGPW处理.
在ECP-UF和EC-UF过程之间比较跨膜压力 (TMP) 增加和污染指数.
使用扩展的德贾古恩-兰多-维维-奥弗比克理论和扫描电子显微镜 (SEM) 分析污染机制.
透质量的表征,包括度,TOC和分子量分布.

主要成果:

与EC-UF (-15 kPa) 相比,ECP-UF在三个过周期中显示出明显较低的TMP增加 (-1.4 kPa).
总和不可逆转的污染指数在ECP-UF过程中大幅减少.
与EC-UF相比,ECP-UF实现了63.6%的度降低和45.8%的TOC降低.
透分析显示,芳香化合物减少,开链化合物增加,由于OH氧化,二甲酸盐显著减少.

结论:

ECP-UF过程有效地减轻了SGPW处理中的UF污染,通过同时凝固,H2O2生成和O3激活来增强OH和Alb的产生.
在ECP-UF中增强的酸相互作用能量有助于提高潜在障碍,减少污染.
ECP-UF是SGPW回收的高效和节省空间的方法,在改善水质和减轻污染方面提供协同效益.

关键词:

电凝 (EC) 与E-氧过程相结合污染的减轻污染的减轻页岩气产生的水 (SGPW)在UF的污染.

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