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OALib Journal期刊
ISSN: 2333-9721
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陶瓷超滤膜脱除水中微量fe3+
DOI: 10.3969/j.issn.1671-7627.2013.02.009, PP. 46-50
Keywords: 陶瓷膜,fe3+,高温凝结水
Abstract:
以高温凝结水的净化为应用背景,采用孔径为4nm的陶瓷膜去除水中微量fe3+。考察fe3+浓度、ph及操作参数等对陶瓷膜分离性能的影响。结果表明:随着fe3+浓度增大,陶瓷膜对fe3+的去除率减小;当fe3+质量浓度小于50mg/l时,陶瓷膜对fe3+的去除率大于98%,操作条件如温度和膜面流速(cfv)的提高均有利于提高陶瓷膜对fe3+的截留率;温度升高有利于提高膜过滤通量,操作压力对通量的拐点为0.2mpa,膜面流速的拐点在3m/s左右;ph对fe3+的去除率影响显著,主要由于ph影响了fe3+在水中的化学构成。
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