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OALib Journal期刊
ISSN: 2333-9721
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平均孔径与改性氧化物对α-Al_2O_3微滤膜油水分离效率的影响
Abstract:
在膜法处理含油废水的过程中,考察了不同平均孔径和氧化物改性的α-Al2O3微滤膜分离效率。结果表明采用平均孔径为0.2μm的α-Al2O3微滤膜进行油水分离时,膜渗透通量达166.7L/(m2·h)且膜渗透液中的油含量为8.27mg/L。相对于ZnO改性,TiO2改性的孔径为0.2μm的α-Al2O3微滤膜渗透通量达192.6L/(m2·h),较未改性膜提高15.5%,且表现出较好的抗污染性和耐酸碱腐蚀能力。同时,实验还从改性膜表面亲疏水性能和zeta电位角度,对改性膜渗透通量提高的机理进行了初步研究。
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