[1]王庆斌,刘贵彩,朱友兵,等.微纳米气泡强化海水淡化反渗透浓水膜蒸馏脱盐效能[J].中国给水排水,2026,42(1):28-34.
　WANGQingbin,LIUGuicai,ZHUYoubing,et al.Enhancement of Membrane Distillation Treatment Efficiency for Reverse Osmosis Concentrate in Seawater Desalination by Micro-Nano Bubbles[J].China Water & Wastewater,2026,42(1):28-34.
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微纳米气泡强化海水淡化反渗透浓水膜蒸馏脱盐效能

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第42卷 期数: 2026年第1期 页码: 28-34 栏目: 出版日期: 2026-01-01
Title:
Enhancement of Membrane Distillation Treatment Efficiency for Reverse Osmosis Concentrate in Seawater Desalination by Micro-Nano Bubbles
作者:
王庆斌1， 刘贵彩1， 朱友兵2， 刘超1， 邵若楠1
（1.济南大学 土木建筑学院，山东 济南 250022；2.上海城建市政工程<集团>有限公司，上海 200065）
Author(s):
WANG　Qingbin1， LIU　Guicai1， ZHU　Youbing2， LIU　Chao1， SHAO　Ruonan1
（1. School of Civil Engineering and Architecture， University of Jinan， Jinan 250022， China； 2. Shanghai Urban Construction and Municipal Engineering Group Co. Ltd.， Shanghai 200065， China）
关键词:
真空膜蒸馏;  微纳米气泡;  反渗透浓水;  温差极化;  海水淡化
Keywords:
vacuum membrane distillation;  micro-nano bubble;  reverse osmosis concentrate;  temperature polarization;  seawater desalination
摘要:
针对真空膜蒸馏（VMD）处理海水淡化反渗透（RO）浓水过程中通量下降问题，通过引入空气微纳米气泡（AMNBs）调控温差极化效应，以提升其处理效能。首先通过正交试验优化AMNBs-VMD系统，得到优化工况参数如下：进料液温度为70 ℃、真空压力为0.09 MPa、进料液流量为600 L/h和AMNBs发生器泵压为0.5 MPa。随着AMNBs泵压从0（即无AMNBs）升高到0.5 MPa，处理RO浓水的膜通量从22.61 kg/（m2·h）增加到26.57 kg/（m2·h），增强比从1.000增加到1.198，有效提升了VMD处理效能。AMNBs与进料液形成气液两相流能够有效强化对流换热，同时降低水的汽化热，而且AMNBs可以吸附RO浓水中金属离子，增大进料侧水分子的分压，从而提升了水分子汽化速率，缓解了温差极化效应，提高了AMNBs-VMD耦合体系的通量和增强比。
Abstract:
To address the issue of flux decline in vacuum membrane distillation (VMD) when treating reverse osmosis (RO) concentrate from seawater desalination, this paper introduces air micro-nano bubbles (AMNBs) to regulate the temperature polarization effect and enhance the performance of VMD. Firstly, the operating parameters of the AMNBs-VMD coupled system were optimized through orthogonal experiments. The optimal conditions were determined as feed liquid temperature of 70 ℃, vacuum pressure of 0.09 MPa, feed liquid flow rate of 600 L/h, and pump pressure of the AMNBs generation device at 0.5 MPa. As the pump pressure of AMNBs increased from zero (i.e. no AMNBs) to 0.5 MPa, the membrane flux for treating RO concentrate increased from 22.61 kg/(m2·h) to 26.57 kg/(m2·h), and the enhancement ratio increased from 1.000 to 1.198, effectively improving the performance of VMD. The formation of gas-liquid two?phase flow by AMNBs and the feed liquid can effectively enhance convective heat transfer and reduce the vaporization enthalpy of water. Moreover, AMNBs can adsorb metal ions in RO concentrate, increasing the partial pressure of water molecules on the feed side. Thus, the vaporization rate of water molecules is enhanced, the temperature polarization effect is mitigated, and the flux and enhancement ratio of the AMNBs-VMD coupled system are improved.

相似文献/References:

[1]余哲帆,张可佳,毛如寅,等.微纳米气泡协同PMS降解2-MIB的机制及影响因素[J].中国给水排水,2025,41(15):31.
　YUZhe-fan,ZHANGKe-jia,MAORu-yin,et al.Mechanism and Influencing Factors of 2-MIB Degradation by Micro?nano Nubbles Combined with PMS[J].China Water & Wastewater,2025,41(1):31.

更新日期/Last Update: 2026-01-01