回收PET改性PEI薄膜在油水分离中的应用  

Application of Modified PEI Membrane by Recycled PET in Oil-Water Separation

作　　者：毛竹简 廖夏露 罗云红 饶瑞晔 MAO Zhujian;LIAO Xialu;LUO Yunhong;RAU Juiyeh(School of Ecology and Resources Engineering,Wuyi University,Wuyishan,Fujian 354300)

机构地区：[1]武夷学院生态与资源工程学院,福建武夷山354300

出　　处：《武夷学院学报》2023年第9期53-58,共6页Journal of Wuyi University

基　　金：福建省自然基金面上项目(2020J01413);福建省教育厅中青年项目(JAT200663);中央引导地方科技发展专项(2019L3021);大学生创新创业训练计划项目(201510397014)。

摘　　要：利用回收聚对苯二甲酸乙二醇酯(Polyethylene Terephthalate,PET)瓶作为添加剂,并利用湿式相转化方法制备PET/聚醚酰亚胺(Polyetherimide,PEI)混合膜,应用于水中乳化油分离的研究。结果表明,随着PET比例由0增加至15%,混合膜的纯水通量和乳化油的去除通量越大,去除效率越低。在0.2 MPa操作压力下;5%PET/PEI薄膜的纯水通量、渗透通量、乳化油分离效率以及反洗后通量分别为883.33、586.67 L/m^(2) h、90.66%及365.26 L/m^(2) h,具有较佳的通量及乳化油分离效率。The recycled polyethylene terephthalate(PET)bottles were used as additives,and a mixed membrane of recycled PET/polyetherimide(PEI)was prepared by a wet-phase inversion method.After,the membrane filtration characteristics,permeation flux,removal efficiency of oil/water emulsion were discussed.The results showed that the mixed membrane permeation and removal flux of oil/water emulsion were increased as the PET ratio from 0 to 15%,however removal efficiency of oil/water emulsion was reduced.In operation condition at 0.2 MPa,the 5%PET/PEI membranes were good membrane with water flux,filtration flux,removal efficiency of oil/water emulsion and backwash flux of 883.3、586.67 L/m^(2) h、90.66%and 365.26 L/m^(2) h,respectively.

关 键 词：回收PET PEI 薄膜 乳化油 

分 类 号：X52[环境科学与工程—环境工程] TQ032[化学工程]