CIESC Journal ›› 2013, Vol. ›› Issue (5): 1797-1802.doi: 10.3969/j.issn.0438-1157.2013.05.040

Previous Articles     Next Articles

Separation mechanism and application of oil-water microemulsion

QIN Juan1, XIN Yinchang1,2, MA Dehua1   

  1. 1. School of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China;
    2. The Jinan Ke Hui Shale Chemical Technology Co., Ltd., Jinan 250101, Shandong, China
  • Received:2012-09-10 Revised:2012-10-11 Online:2013-05-05
  • Supported by:

    supported by the Innovation Foundation of National Science and Technology Ministry(01C26213700899).

Abstract: A special surfactant can make thermodynamically stable microemulsion liquid change to thermodynamically unstable state, and its complex with a polymer can do the microemulsion separation into a mixture of oil and water.It is found by transmission electron microscopy(TEM)analysis that size of particles dispersed in transparent deinking paper wastewater containing insoluble organic matter is much smaller than visible light wave-length, and this wastewater is at microemulsion state.So, the transparent deinking paper wastewater was taken as test sample, and treated with this complex(a mixture of special surfactant cBPE-2030 and polymer LYPW-301).The chemical oxygen demand(COD)was determined. The results showed that COD value after treatment with this complex was significantly reduced.The mechanism of oil and water separation was explored by TEM analysis for microscopic state change of microemulsion and emulsion liquids.The method separating oil and water of microemulsion could be effectively applied to other transparent wastewater from papermaking and oilfield, whose separation, in general, is difficult.

Key words: special surfactant, microemulsion, emulsion, oil/water separation, transmission electron microscopy(TEM), chemical oxygen demand(COD)

CLC Number: 

  • TQ423
[1] Drew Myers.Surfaces,Interface and Colloids:Principles and Applications(表面、界面和胶体——原理及应用)[M].Wu Dacheng(吴大诚),Zhu Puxin(朱谱新),Wang Luoxin(王罗新),Gao Xushan(高绪珊),trans.2nd ed.Beijing:Chemical Industry Press,2004:312-313
[2] Chen Zongqi(陈宗淇),Wang Guangxin(王光信),Xu Guiying(徐桂英).Colloid and Interface Chemistry(胶体与界面化学)[M].Beijing:Higher Education Press,2001:304-309
[3] Kang Wanli(康万利),Dong Xigui(董喜贵).Application of Surfactants in Oil Fields(表面活性剂在油田中的应用)[M].Beijing:Chemical Industry Press,2004:242-246
[4] Zhan Xiao, Gao Baoyu, Yue Qinyan, Wang Yan, Wang Qian.Coagulation efficiency of polyaluminum chloride for natural organic matter removal from low specific UV absorbance surface water and the subsequent effects on chlorine decay[J].Chemical Engineering Journal, 2010,161:60-67
[5] Anirudhan T S, Suchithra P S.Adsorption characteristics of humic acid-immobilized amine modified polyacrylamide/bentonite composite for cationic dyes in aqueous solutions[J].Journal of Environmental Sciences, 2009,21(7):884-891
[6] Chen Ting, Gao Baoyu, Yue Qinyan.Effect of dosing method and pH on color removal performance and floc aggregation of polyferric chloride-polyamine dual-coagulant in synthetic dyeing wastewater treatment[J].Colloids and Surfaces, 2010,355(1/2/3):121-129
[7] Yang Zhonglian, Gao Baoyu, Li Chunxiao, Yue Qinyan, Liu Bin.Synthesis and characterization of hydrophobically associating cationic polyacrylamide[J].Chemical Engineering Journal,2010, 161:27-33
[8] Zou Shunli(邹顺利).Cause analysis of inlet COD mass concentration somewhat low of wastewater treatment plant[J].Municipal Engineering Technology(市政技术),2011,29( 1):121-123
[9] Gong Fuzhong(龚福忠),Ma Peihua(马培华),Luo Yan(罗艳),Liu Liheng(刘力恒),Zhang Limei(张丽梅).Solubilization and phase behavior of nonionic water-in -oil microemulsion and its application to extraction of Nd3+ in hollow fiber modules[J].Journal of Chemical Industry and Engineering(China)(化工学报),2006,57(3):590-595
[10] Wang Min(王敏),Wang Yujun(王玉军),Zhu Shenlin(朱慎林).Composition and stability of W/O micromulsions for preparation of BaSO4 nanoparticles[J].Journal of Chemical Industry and Engineering(China)(化工学报),2003,54(10):1450-1454
[11] Song Linying(宋琳莹),Xin Yicheng(辛一诚),Li Lu(李璐),Xin Yinchang(辛寅昌).The synthesis and evaluation of the composite modifier reactive polyether in chemical modification of Xuan paper[J].Journal of Shandong Normal University:Natural Science(山东师范大学学报:自然科学版),2008,23(2):52-55
[12] Xin Yinchang(辛寅昌),Qiu Zengzhong(邱增中),Zhang Shengjun(张盛军),Zhao Mingfang(赵明方).Salt resistance property and application of α-olefine polyether sulfonate[J].Journal of Chemical Industry and Engineering(China)(化工学报), 2008,59(11):2935-2940
[13] Xin Yinchang(辛寅昌), Ma Lei(马 磊), Bian Jieping(卞介萍), Dong Xiaoyan(董晓燕), Zhao Mingfang( 赵明方), Hou Erqun(侯尔群).Preparation and application in high-salinity water of compound α-olefine polyether carboxylate[J].CIESC Journal(化工学报),2010,61(3):691-698
[14] Ding Yuehua(丁月华), Xin Yinchang(辛寅昌),Zhang Yaqian(张雅倩).Application of branch-composite polyether derivative in crude oil desalting,salinity water washing and metal corrosion inhibition[J].CIESC Journal(化工学报),2011,62(2):407-411
[15] Huo Yuning(霍宇凝),Xue Li(薛莉),Yuan Hong(袁虹),Wang Jinghua(王静华),Gu Xiaowei(顾晓蔚).Study on the decolouration property of polymeric complex flocculants for active dyeing wastewater[J].Industrial Water Treatment(工业水处理),2006,26(1):33-35
[16] Guo Lingxiang,Wa Chenyi.Quantitative study on polymer flocculation mechanism based on mathematical morphology[J].Journal of China University of Mining and Technology:English Edition,2006,16(2):241-244
[17] Zhang Haiping(张海萍), Li Chunxia(李春霞), Huang Zhenrong(黄振荣).Comparison of high chlorine wastewater COD determination methods[J].Environmental Science and Management(环境科学与管理),2011,36(12):120-123
[1] TANG Erjun, YAO Mengmeng, GUO Xiaofeng, WANG Ruihong, LIU Shaojie, GAO Hao. Film formation for aqueous epoxy acrylate latex coatings [J]. CIESC Journal, 2018, 69(S1): 143-147.
[2] GAO Jing, ZHENG Caiju, TAN Tingru, ZHANG Di, LIU Shucheng, JI Hongwu. Effect of ionic liquid micro emulsion pretreatment on rice straw at ultra-high pressure [J]. CIESC Journal, 2018, 69(8): 3686-3692.
[3] YE Feifei, GUO Xiaoyan, HOU Jing, LIU Xu, WANG Liangliang, WANG Ziyu, JIN Haibo. Synthesis of BaSO4 nanoparticles by double microemulsion method [J]. CIESC Journal, 2018, 69(6): 2767-2774.
[4] HUANG Li. Preparation and properties of paraffin/water phase change emulsion [J]. CIESC Journal, 2018, 69(4): 1749-1757.
[5] XU Jinchao, BAO Yongzhong. Preparation of poly(styrene-b-butyl acrylate-b-styrene) copolymers by single electron transfer-degenerative chain transfer living free radical miniemulsion polymerization [J]. CIESC Journal, 2018, 69(2): 840-847.
[6] CHEN Yong, SHAN Guorong. Kinetics of acrylamide and 2-methylacryloylxyethyltrimethyl ammonium chloride in inverse emulsion polymerization [J]. CIESC Journal, 2018, 69(2): 563-569.
[7] YANG Dongjie, SHI Yiming, SHAN Guorong. Effect of acrylate amount on properties of swelling-block waterborne polyurethane [J]. CIESC Journal, 2018, 69(11): 4856-4861.
[8] GAO Jiaming, WANG Ming, MA Xiaohua, XU Zhenliang. Effect of sintering temperature on structures and properties of TiO2/stainless steel hollow fiber composite membrane [J]. CIESC Journal, 2018, 69(11): 4879-4886.
[9] ZHANG Yang, WANG Xuguang, WANG Yinjun, WANG Quan, WU Hongbo. Crystallization kinetics of emulsion explosive matrix during aging process [J]. CIESC Journal, 2018, 69(10): 4464-4470.
[10] ZHANG Yang, WANG Xuguang, WANG Yang, WANG Yinjun. Aging analysis of emulsion explosive matrix based on percolation theory [J]. CIESC Journal, 2017, 68(7): 2938-2945.
[11] PU Yadong, RUAN Da, DILIYAER·Hamiti, ZHAO Zhigang, CHEN Xiao. Demulsification of W/O emulsion with three-dimensional electric spiral plate-type microchannel [J]. CIESC Journal, 2017, 68(7): 2790-2797.
[12] WU Qiujie, CHEN Xiang, TAN Liu, LI Min, XU Sen, LIU Dabin. Influence of crystalloid NaNO2 on safety of emulsion explosive [J]. CIESC Journal, 2017, 68(5): 2211-2215.
[13] GONG Yue, WANG Xuguang, HE Jie, YAN Shilong, CHENG Yangfan. Influence of aluminum particle size on energy output characteristics and thermal stability of emulsion explosive [J]. CIESC Journal, 2017, 68(4): 1721-1727.
[14] CHENG Yangfan, WANG Quan, GONG Yue, TANG Youfu, YUAN Heping, QIAN Hai, SHEN Zhaowu. Preparation and detonation properties of MgH2 type of composite sensitized emulsion explosives [J]. CIESC Journal, 2017, 68(4): 1734-1739.
[15] YANG Jie, LIU Tianlu, SONG Huibo, MAO Feiyan, HAN Xu, LIN Bingcheng, HUANG Qunxing, CHI Yong. Micro-emulsion method for reducing viscosity of petroleum sludge [J]. CIESC Journal, 2016, 67(7): 2963-2969.
Full text



No Suggested Reading articles found!