Oil-water separation membrane for biodiesel wastewater and preparation method of oil-water separation membrane

• Main Authors: YANG JIANBIN, ZHANG XUEWANG, LEI MANYUN, GU DELIANG
• Format: Patent
• Language: Chinese; English
• Published: 05.05.2023
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention relates to the technical field of wastewater treatment, and particularly discloses an oil-water separation membrane for biodiesel wastewater and a preparation method thereof.The preparation method of the oil-water separation membrane for biodiesel wastewater comprises the following preparation steps that S1, expanded graphite and carbon nanotubes are evenly mixed and heated at the constant temperature for 3-6 min, and a composite material is obtained; s2, dropwise adding methyl methacrylate and N, N '-methylene bisacrylamide into the composite material, and reacting to obtain a modified composite material; s3, hydroxyethyl cellulose and polyvinyl alcohol are stirred and dissolved in water, then methyl methacrylate and butyl methacrylate are added and stirred to be uniform, then an initiator, the modified composite material, ethyl acetate and water are added, and a separation membrane material is obtained through a reaction; and S4, preparing a film coating solution containing a separation film m