Soybean protein processing wastewater treatment method

• Main Authors: CHENG JIEYI, WANG ZHONGJIANG, WANG DAN, ZHOU LINYI
• Format: Patent
• Language: Chinese; English
• Published: 10.10.2023
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PEPTIDES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a soybean protein processing wastewater treatment method, which comprises the following steps: coating nano ferroferric oxide with silicon dioxide to obtain magnetic nano silicon dioxide, and in the subsequent separation process, through magnetic separation, the separation efficiency is improved, and the method has the characteristic of high separation speed; the preparation method comprises the following steps: firstly, carrying out surface modification on magnetic nano silicon dioxide by using vinyltrimethoxysilane to obtain magnetic nano silicon dioxide particles with double bonds on the surfaces, and then grafting the ionic liquid and polyacrylic acid on silicon dioxide through an addition reaction of the double bonds, so that the adsorption performance of silicon dioxide on protein is improved, and meanwhile, the magnetic nano silicon dioxide particles with the double bonds are prepared. Polyacrylic acid has good hydrophilic performance, and can be combined with the ionic liquid t