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EXPERIMENTAL STUDY ON ADVANCED TREATMENT OF OILY WASTEWATER USING ANTIFOULING PES ULTRAFILTRATION MEMBRANE

Authors： Chen Wen-juan1,2, Tan Guo-rong1,2, Zhang Jian1,2, Zhu Yue-jun, Shi Peng3

Units： 1.State Key Laboratory of Offshore Oil Exploitation, Beijing 100028, P R of China; 2.CNOOC Research Institute, Beijing 100028, P R of China; 3. 3. School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan, P R of China

KeyWords： Antifouling; Ultrafiltration membrane; Oily wastewater; Advanced treatment

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2016,36(5):106-110

Abstract：

Two kinds of amphiphilic modifiers, polyethyleneimine-polyoxyethylene-polyoxypropylene (PEI-PEO-PPO) and polyethyleneimine-polyoxyethylene-polyoxypropylene (PEI-PPO-PEO), were designed and synthesis in order to solve the serious membrane fouling during the application of UF membrane for oily wastewater treatment. Then the antifouling PES ultrafiltration membranes were fabricated by blending modification methods. Experimental results showed that the modified PES ultrafiltration membrane possess superior anti-pollution performance for handling oily wastewater. Compared with the unmodified PES membrane, the flux decay ratio was decreased from 40.8% to 31.3%, the flux recovery ratio (simple hydraulic cleaning) was increased from 42.3% to about 99.5%. The hydrophilic PEO segments segregated onto the membrane surface and then formed a stable hydration layer near the membrane surface via the hydrogen bond. The contaminant was difficult to break the hydration layer and adsorb onto the membrane surface, thus endowing the membrane with a superior antifouling performance.

Funds：

“十二五”国家科技重大专项“大型油气田及煤层气开发”项目24“海上稠油高效开发新技术”课题4“海上稠油化学驱油技术”（2011ZX05024-004）

AuthorIntro：

第一作者简介：陈文娟（1988-），女，山东枣庄市人，博士研究生，工程师，采油工程师，研究方向油田化学、水处理技术，联系方式：010-84523756， Email：chenwj4@cnooc.com.cn

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