在处理纳米过缩剂的过程中,三间隔膜电解器结合了同时淡化和氧化降解
Jinlong Wang1, Zhangjie Yu1, Hao Zhang1
1State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
Water research
|December 24, 2023
概括
一种新的膜电解器通过电驱动的离子迁移和阳极氧化有效地处理纳米过 (NFC) 缩物. 这个过程同时回收无机盐和降解有机污染物,为废水管理提供可持续的解决方案.
科学领域:
- 环境工程 环境工程
- 电化学 电化学 电化学
- 水处理技术水处理技术
背景情况:
- 纳米过缩剂 (NFC) 含有复杂的有机和无机溶液,对传统的水处理构成挑战.
- 现有的方法在有效的同时淡化和从NFC中去除有机污染物方面扎.
研究的目的:
- 开发和评估一个三膜电解器,用于NFC的协同淡化和有机降解.
- 调查电化学参数对污染物去除的影响,并确定工艺限制.
主要方法:
- 使用三隔膜电解器,电驱动的离子迁移用于结晶和阳极氧化用于有机降解.
- 在5分钟的液压保留时间 (HRT) 和超过50mA的电流下运行系统.
- 分析了无机盐的分离,有机碳的去除,以及污染物降解的总指数.
主要成果:
- 实现了超过25%的无机盐分离和>35%的总降低 (有机污染物氧化).
- 证明有机碳去除率>15%,效率与电流强度有很强的相关性.
- 识别了膜和电极污染作为关键挑战,受金属阴离子复合和无机盐结晶的影响.
结论:
- 膜电解器可用于NFC处理,在100 mA电流强度 (8 mA/cm2) 时具有最佳性能.
- 该系统为NFC处理中协同淡化,离子回收和有机去除提供了一个有希望的方法.
- 这项技术是未来NFC管理中的缩短流程流程的基本组成部分.
更多相关视频
10:19Three-Dimensionally Printed Microfluidic Cross-flow System for Ultrafiltration/Nanofiltration Membrane Performance Testing
Published on: February 13, 2016
11.4K
07:28An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter
Published on: July 13, 2018
7.4K
相关概念视频
Dialysis
693
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
693
Potentiometry: Membrane Electrodes
587
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
587
