GO-PVP/PVDF滲透膜的熱質(zhì)傳遞機(jī)理和污染特性
作者:韋純忠1， 曾思1， 李冬冬1， 梁才航2（1.廣西北投環(huán)保水務(wù)集團(tuán)有限公司，廣西 南寧 530000；2.桂林電子科技大學(xué) 機(jī)電工程學(xué)院，廣西 桂林 541000）
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[1]韋純忠,曾思,李冬冬,等.GO-PVP/PVDF滲透膜的熱質(zhì)傳遞機(jī)理和污染特性[J].中國給水排水,2023,39(5):80-87.
WEI Chun-zhong,ZENG Si,LI Dong-dong,et al.Heat and Mass Transfer Mechanism and Membrane Fouling Characteristics of GO-PVP/PVDF Permeable Membrane[J].China Water & Wastewater,2023,39(5):80-87.點擊復(fù)制
GO-PVP/PVDF滲透膜的熱質(zhì)傳遞機(jī)理和污染特性
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期數(shù): 2023年第5期 頁碼: 80-87 欄目: 出版日期: 2023-03-01
Title:Heat and Mass Transfer Mechanism and Membrane Fouling Characteristics of GO-PVP/PVDF Permeable Membrane
作者:韋純忠1， 曾思1， 李冬冬1， 梁才航2（1.廣西北投環(huán)保水務(wù)集團(tuán)有限公司，廣西 南寧 530000；2.桂林電子科技大學(xué) 機(jī)電工程學(xué)院，廣西 桂林 541000）
Author(s):WEI Chun-zhong1， ZENG Si1， LI Dong-dong1， LIANG Cai-hang2（1. Guangxi Beitou Environmental Protection & Water Group Co. Ltd.， Nanning 530000， China； 2. School of Mechanical and Electrical Engineering， Guilin University of Electronic Technology， Guilin 541000， China）
關(guān)鍵詞:滲透膜; 氧化石墨烯; 傳熱傳質(zhì); 疏水性; 膜污染; 分子模擬
Keywords:permeable membrane; graphene oxide; heat and mass transfer; hydrophobicity; membrane fouling; molecular simulation
摘要:滲透率低和疏水性差是限制滲透膜在膜蒸餾式海水淡化運(yùn)用中的關(guān)鍵因素。為了提高膜的疏水性且保持高滲透性能，對自制的超疏水氧化石墨烯-聚乙烯吡咯烷酮/聚偏氟乙烯（GO-PVP/PVDF）復(fù)合膜進(jìn)行了熱質(zhì)傳遞的分子模擬和污染物為腐殖酸（HA）、半胱氨酸（LC）、Ca2+的耐污染實驗，并通過Materials Studio（MS）軟件建立了膜的傳熱傳質(zhì)模型。結(jié)果表明，GO含量越大膜表面的裂紋越少。左右堆疊形態(tài)下復(fù)合膜的滲透性能最好且熱導(dǎo)率最高，上下堆疊形態(tài)下膜性能最差。氫鍵作用能（Eel）為負(fù)值，并導(dǎo)致污染物和膜表面的相互作用能為負(fù)值，是污染物富集在膜表面的主要作用力。此外，Ca2+離子會加重膜污染。
Abstract:Low permeability and poor hydrophobicity are the key factors limiting the application of permeable membranes in the field of seawater desalination. To improve the hydrophobicity and maintain a high permeability of the membrane, the molecular simulation of heat and mass transfer and pollution [pollutants were humic acid (HA), L-cysteine (LC) and Ca2+] resistance experiment of the prepared graphene oxide-polyvinylpyrrolidone/polyvinylidene fluoride (GO-PVP/PVDF) composite membrane were carried out. Then, the heat and mass transfer model of the membrane was established by using Materials Studio (MS) software. The higher content of GO resulted in the less cracks on the membrane surface. The permeability and thermal conductivity of the composite membrane with the left and right stacking mode was the best, while the performance of the composite membrane with the top and bottom stacking mode was the worst. The hydrogen bonding energy (Eel) was negative, which resulted in negative interaction energy between pollutants and the membrane surface, and was the main force for pollutant enrichment on the membrane surface. Furthermore, the addition of Ca2+ aggravated the membrane fouling.
相似文獻(xiàn)/References:
[1]蔣寶軍,孫一文,王新培,等.磁性TiO2/GO復(fù)合催化劑處理垃圾滲濾液試驗研究[J].中國給水排水,2022,38(3):99.
JIANGBao-jun,SUNYi-wen,WANGXin-pei,et al.Magnetic Titanium Dioxide/Graphene Oxide Composite Catalyst for Landfill Leachate Treatment[J].China Water & Wastewater,2022,38(5):99.
更新日期/Last Update: 2023-03-01
[1]韋純忠,曾思,李冬冬,等.GO-PVP/PVDF滲透膜的熱質(zhì)傳遞機(jī)理和污染特性[J].中國給水排水,2023,39(5):80-87.
WEI Chun-zhong,ZENG Si,LI Dong-dong,et al.Heat and Mass Transfer Mechanism and Membrane Fouling Characteristics of GO-PVP/PVDF Permeable Membrane[J].China Water & Wastewater,2023,39(5):80-87.
點擊復(fù)制
WEI Chun-zhong,ZENG Si,LI Dong-dong,et al.Heat and Mass Transfer Mechanism and Membrane Fouling Characteristics of GO-PVP/PVDF Permeable Membrane[J].China Water & Wastewater,2023,39(5):80-87.
GO-PVP/PVDF滲透膜的熱質(zhì)傳遞機(jī)理和污染特性
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期數(shù): 2023年第5期 頁碼: 80-87 欄目: 出版日期: 2023-03-01
- Title:
- Heat and Mass Transfer Mechanism and Membrane Fouling Characteristics of GO-PVP/PVDF Permeable Membrane
- Keywords:
- permeable membrane; graphene oxide; heat and mass transfer; hydrophobicity; membrane fouling; molecular simulation
- 摘要:
- 滲透率低和疏水性差是限制滲透膜在膜蒸餾式海水淡化運(yùn)用中的關(guān)鍵因素。為了提高膜的疏水性且保持高滲透性能，對自制的超疏水氧化石墨烯-聚乙烯吡咯烷酮/聚偏氟乙烯（GO-PVP/PVDF）復(fù)合膜進(jìn)行了熱質(zhì)傳遞的分子模擬和污染物為腐殖酸（HA）、半胱氨酸（LC）、Ca2+的耐污染實驗，并通過Materials Studio（MS）軟件建立了膜的傳熱傳質(zhì)模型。結(jié)果表明，GO含量越大膜表面的裂紋越少。左右堆疊形態(tài)下復(fù)合膜的滲透性能最好且熱導(dǎo)率最高，上下堆疊形態(tài)下膜性能最差。氫鍵作用能（Eel）為負(fù)值，并導(dǎo)致污染物和膜表面的相互作用能為負(fù)值，是污染物富集在膜表面的主要作用力。此外，Ca2+離子會加重膜污染。
- Abstract:
- Low permeability and poor hydrophobicity are the key factors limiting the application of permeable membranes in the field of seawater desalination. To improve the hydrophobicity and maintain a high permeability of the membrane, the molecular simulation of heat and mass transfer and pollution [pollutants were humic acid (HA), L-cysteine (LC) and Ca2+] resistance experiment of the prepared graphene oxide-polyvinylpyrrolidone/polyvinylidene fluoride (GO-PVP/PVDF) composite membrane were carried out. Then, the heat and mass transfer model of the membrane was established by using Materials Studio (MS) software. The higher content of GO resulted in the less cracks on the membrane surface. The permeability and thermal conductivity of the composite membrane with the left and right stacking mode was the best, while the performance of the composite membrane with the top and bottom stacking mode was the worst. The hydrogen bonding energy (Eel) was negative, which resulted in negative interaction energy between pollutants and the membrane surface, and was the main force for pollutant enrichment on the membrane surface. Furthermore, the addition of Ca2+ aggravated the membrane fouling.
相似文獻(xiàn)/References:
[1]蔣寶軍,孫一文,王新培,等.磁性TiO2/GO復(fù)合催化劑處理垃圾滲濾液試驗研究[J].中國給水排水,2022,38(3):99.
JIANGBao-jun,SUNYi-wen,WANGXin-pei,et al.Magnetic Titanium Dioxide/Graphene Oxide Composite Catalyst for Landfill Leachate Treatment[J].China Water & Wastewater,2022,38(5):99.
更新日期/Last Update: 2023-03-01
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