Preparation of Nano-SiO<sub>2</sub> Modified PA66 Microfiltration Membrane and Treatment of Oily Wastewater
نویسندگان
چکیده
Abstract With the development of industry, more and oily wastewater is discharged into water, which brings great harm to ecological environment human health. Membrane separation technology a very promising for treatment. In this experiment, 1:1 mixed solution formic acid dichloromethane (FA/DCM) was used as solvent prepare PA66 microfiltration membrane by evaporation method, nano-SiO 2 modify with determined formula. The apparent morphology, hydrophilicity mechanical properties were characterized scanning electron microscopy, contact angle test tensile test, effect treating before after modification analyzed. results show that strength are improved SiO , sewage treatment better. removal rates unmodified total suspended solids, chemical oxygen demand oil concentration 55%~96%, 50%~85% 55%~92%; modified 98%~99%, 91%~95% 95%~99%.
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ژورنال
عنوان ژورنال: Journal of physics
سال: 2022
ISSN: ['0022-3700', '1747-3721', '0368-3508', '1747-3713']
DOI: https://doi.org/10.1088/1742-6596/2324/1/012010