真空膜蒸馏技术处理模拟高含盐废水实验研究

详细信息    查看全文 | 推荐本文 |

英文篇名：Treatment of Simulated High-salinity Wastewater by Vacuum Membrane Distillation Technology 作者：丁鹏元 ; 党伟 ; 刘建勋 ; 魏蓓 英文作者：DING Peng-yuan;DANG Wei;LIU Jian-xun;WEI Bei;Petroleum Exploration and Production Research Institute,Sinopec; 关键词：真空膜蒸馏 ; 高含盐废水 ; 操作条件 ; 多元线性回归 英文关键词：vacuum membrane distillation;;high-salinity wastewater;;operational parameters;;multiple linear regression 中文刊名：KXJS 英文刊名：Science Technology and Engineering 机构：中国石油化工股份有限公司石油勘探开发研究院; 出版日期：2019-01-28 出版单位：科学技术与工程 年：2019 期：v.19;No.472 基金：国家自然科学基金(51508573);; 中国石油化工股份有限公司科技开发部项目(318018-4)资助 语种：中文; 页：KXJS201903044 页数：6 CN：03 ISSN：11-4688/T 分类号：280-285

摘要

为研究真空膜蒸馏(vacuum membrane distillation,VMD)技术对高盐废水处理的工艺特性,采用VMD小试装置研究了模拟高含盐废水处理效果,分析了真空度(0. 10～0. 98 atm,1 atm=101 325 Pa)、温度(30～70℃)、进水流速(10. 5～41. 8 L/h)和含盐量(30～200 g/L)等条件对膜通量的影响。实验结果表明:当真空度为0. 98 atm、温度为70℃、进水流速为41. 8 L/h、含盐量为35 g/L时,膜通量可达到最大值4. 21 L/(m~2·h)。多元线性回归拟合结果表明,真空度的改变对膜通量的影响最大,其次为温度,进水流速和含盐量影响较小。另外,真空膜蒸馏工艺的冷凝水含盐量低于10μg/L,能够达到回用或外排标准。可见真空膜蒸馏工艺是一种很有前途的高含盐废水处理技术。
        In order to find out the technological characteristics of the treatment of high-salinity wastewater by vacuum membrane distillation( VMD) process,a lab-scale VMD setup was used to investigate the treatment effect of stimulated high-salinity wastewater. The effect of operational parameters,including vacuum degree( 0. 10 ～0. 98 atm,1 atm = 101 325 Pa),temperature( 30 ～ 70 ℃),feed flow rate( 10. 5 ～ 41. 8 L/h) and feed flow salt concentration( 30 ～ 200 g/L),on the membrane flux was examined. The results showed that the maximum permeate flux could reach 4. 21 L/( m~2·h) under the most optimized conditions( i. e.,vacuum degree was 0. 98 atm,temperature was 70 ℃,feed flow rate was 41. 8 L/h,and feed flow salt concentration was 35 g/L). The analysis result of multiple linear regression indicated that vacuum degree has the most obvious influence on permeate flux,followed by temperature,feed flow rate and salt concentration. In addition,the salt concentration of permeated water was less than 10 μg/L for all experiments in this study,and that meant the permeated water could be reused or discharged directly. It is concluded that VMD process is a promising method for treating high salinity wastewater.

引文

1李柄缘,刘光全,王莹,等.高盐废水的形成及其处理技术进展[J].化工进展,2014,33(2):493-497Li Bingyuan,Liu Guangquan,Wang Ying,et al.Formation and treatment of high-salt wastewater[J].Chemical Industry and Engineering Progress,2014,33(2):493-497
    2 Subramani A,Jacangelo J G.Emerging desalination technologies for water treatment:A critical review[J].Water Research,2015,75:164-187
    3 Mezher T,Fath H,Abbas Z,et al.Techno-economic assessment and environmental impacts of desalination technologies[J].Desalination,2011,266(1):263-273
    4 Greenlee L F,Lawler D F,Freeman B D,et al.Reverse osmosis desalination:Water sources,technology,and today's challenges[J].Water Research,2009,43(9):2317-2348
    5冯萃敏,葛俊男,孙丽华,等.超滤膜表面预沉积吸附剂对膜污染的缓解作用[J].科学技术与工程,2018,18(17):264-271Feng Cuimin,Ge Junnan,Sun Lihua,et al.Reduction of membrane fouling by adsorbent predeposition on ultrafiltration membrane[J].Science Technology and Engineering,2018,18(17):264-271
    6 El-Bourawi M S,Ding Z,Ma R,et al.A framework for better understanding membrane distillation separation process[J].Journal of Membrane Science,2006,285(1):4-29
    7 Criscuoli A,Carnevale M C,Drioli E.Evaluation of energy requirements in membrane distillation[J].Chemical Engineering and Processing:Process Intensification,2008,47(7):1098-1105
    8 Sun L,Wang L,Wang Z,et al.Characteristics analysis of cross flow vacuum membrane distillation process[J].Journal of Membrane Science,2015,488:30-39
    9 Devi S,Ray P,Singh K,et al.Preparation and characterization of highly micro-porous PVDF membranes for desalination of saline water through vacuum membrane distillation[J].Desalination,2014,346:9-18
    10 Mericq J P,Laborie S,Cabassud C.Vacuum membrane distillation of seawater reverse osmosis brines[J].Water Research,2010,44(18):5260-5273
    11刘宇程,吴东海,袁建梅,等.膜蒸馏处理页岩气井压裂返排液[J].环境工程学报,2017,11(1):48-54Liu Yucheng,Wu Donghai,Yuan Jianmei,et al.Treatment of fracturing flowback fluids of shale gas wells by membrane distillation[J].Chinese Journal of Environmental Engineering,2017,11(1):48-54
    12 Wen X,Li F,Zhao X.Filtering of low-level radioactive wastewater by means of vacuum membrane distillation[J].Nuclear Technology,2016,194(3):379-386
    13游文婷,许振良,徐文婷.真空膜蒸馏法处理高浓度Na2SO4和CaCl2废水[J].膜科学与技术,2013,33(1):92-95You Wenting,Xu Zhenliang,Xu Wenting.Treatment of high-concentration Na2SO4and CaCl2wastewater by vacuum membrane distillation[J].Membrane Science and Technology,2013,33(1):92-95
    14 Ko C C,Ali A,Drioli E,et al.Performance of ceramic membrane in vacuum membrane distillation and in vacuum membrane crystallization[J].Desalination,2018,440:48-58
    15张新妙,王玉杰,彭海珠.膜蒸馏处理石化高盐废水技术研究[J].现代化工,2015,35(1):153-157Zhang Xinmiao,Wang Yujie,Peng Haizhu.Membrane distillation technology for treatment of petrochemical high-salinity wastewater[J].Modern Chemical Industry,2015,35(1):153-157
    16 Xing Y,Qi C,Feng H,et al.Performance study of a pilot-scale multi-effect vacuum membrane distillation desalination plant[J].Desalination,2017,403:199-207
    17 Alsaadi A S,Francis L,Amy G L,et al.Experimental and theoretical analyses of temperature polarization effect in vacuum membrane distillation[J].Journal of Membrane Science,2014,471:138-148
    18 Banat F,Al-Rub F A,Bani-Melhem K.Desalination by vacuum membrane distillation:sensitivity analysis[J].Separation and Purification Technology,2003,33(1):75-87
    19 Sun A C,Kosar W,Zhang Y,et al.Vacuum membrane distillation for desalination of water using hollow fiber membranes[J].Journal of Membrane Science,2014,455:131-142
    20 Wu C,Li Z,Zhang J,et al.Study on the heat and mass transfer in air-bubbling enhanced vacuum membrane distillation[J].Desalination,2015,373:16-26
    21 Hwang H J,He K,Gray S,et al.Direct contact membrane distillation(DCMD):Experimental study on the commercial PTFE membrane and modeling[J].Journal of Membrane Science,2011,371(1):90-98
    22 Xing Y,Wang R,Shi L,et al.Performance improvement of PVDFhollow fiber-based membrane distillation process[J].Journal of Membrane Science,2011,369(1):437-447
    23 Liu H,Wang J.Treatment of radioactive wastewater using direct contact membrane distillation[J].Journal of Hazardous Materials,2013,261:307-315
    24 Zhang J,Gray S.Modelling heat and mass transfers in DCMD using compressible membranes[J].Journal of Membrane Science,2012,387:7-16
    25 Chung H W,Swaminathan J,Warsinger D M.Multistage vacuum membrane distillation(MSVMD)systems for high salinity applications[J].Journal of Membrane Science,2016,497:128-141
    26 Singh D,Sirkar K K.Desalination of brine and produced water by direct contact membrane distillation at high temperatures and pressures[J].Journal of Membrane Science,2012,389:380-388
    27 Martínez L,Rodríguez-Maroto J M.On transport resistances in direct contact membrane distillation[J].Journal of Membrane Science,2007,295(1):28-39
    28 Safavi M,Mohammadi T.High-salinity water desalination using VMD[J].Chemical Engineering Journal,2009,149(1):191-195