研究了一种将均质硅橡胶膜与碱性萃取液相结合的新型膜萃取技术,用以处理含酚水溶液的传质机理与过程,并考察了该体系中两相流动状态、萃取液pH、料液浓度、两相压力和温度等因素对苯酚膜萃取传质速率的影响.基于液-膜-液串联传质阻力模型,通过实验测定苯酚的总传质系数Kov.研究表明:对于氢氧化钠-苯酚-水实验体系,传质由膜阻控制,Kov为3.72×10-7m/s;化学反应对苯酚传质速率的增强作用不显著;苯酚溶液浓度＞8000mg/L,Kov与其初始浓度无关;致密膜体系中两相压差的存在不利于传质的进行;Kov与运行温度呈直线关系.
参考文献
| [1] | Wojciech Kujawski;Andrzej Warszawski;Wlodzimierz rAtajczak;Tadeisz Porebski;Wieslaw Capala;Izabela Ostrowska .Removal of phenol from wastewater by different separation techniques[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2004(1/3):287-296. |
| [2] | 时钧;袁权;高从堦.膜技术手册[M].北京:化学工业出版社,2001:750-759. |
| [3] | 戴猷元 .膜萃取过程及其进展[J].膜科学与技术,1992,12(01):1-7. |
| [4] | 戴猷元;王秀丽;朱慎林 .单束中空纤维膜器中膜萃取研究[J].膜科学与技术,1990,10(03):32-37. |
| [5] | Lee L T;Ho W S;Liu K J .Membrane solvent extraction[P].US 3956112,1975-03-13. |
| [6] | Brookes PR.;Livingston AG. .AQUEOUS-AQUEOUS EXTRACTION OF ORGANIC POLLUTANTS THROUGH TUBULAR SILICONE RUBBER MEMBRANES[J].Journal of Membrane Science,1995(1/2):119-137. |
| [7] | Netke SA.;Pangarkar VG. .EXTRACTION OF NAPHTHENIC ACID FROM KEROSENE USING POROUS AND NONPOROUS POLYMERIC MEMBRANES[J].Separation Science and Technology,1996(1):63-76. |
| [8] | Ray S K;Joshi S B;Pangarkar V G .Perstraction of phenolic compounds from aqeous solutions using a nonporous membrane[J].Separation Science and Technology,1997,32:2669-2683. |
| [9] | Doig S.D.;Livingston A.G.;Stuckey D.C.;Boam A.T. .Mass transfer of hydrophobic solutes in solvent swollen silicone rubber membranes[J].Journal of Membrane Science,1999(1):127-140. |
| [10] | Han S;Ferreira F C;Linvingston A G .Membrane aromatic recovery system(MARS)-a new membrane process for the recovery of phenols from wastewaters[J].Journal of Membrane Science,2001,188:219-233. |
| [11] | Frederico Castelo Ferreira;Shejiao Han;Andrew G. Livingston .Recovery of Aniline from Aqueous Solution Using the Membrane Aromatic Recovery System (MARS)[J].Industrial & Engineering Chemistry Research,2002(11):2766-2774. |
| [12] | 吴肇亮;蔺五正;杨国华.物理化学实验[M].东营:中国石油大学出版社,1990:30-38. |
| [13] | Ferreira FC;Peeva LG;Livingston AG .Mass transfer enhancement in the Membrane Aromatic Recovery System (MARS): theoretical analysis[J].Chemical Engineering Science,2005(1):151-166. |
| [14] | Ferreira FC;Peeva LG;Livingston AG .Mass transfer enhancement in the membrane aromatic recovery system (MARS): experimental results and comparison with theory[J].Chemical Engineering Science,2005(4):1029-1042. |
| [15] | 时钧.化学工程手册.第10篇,传质[M].北京:化学工业出版社,1989:88-89,109. |
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