کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
637935 1456155 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of paramagnetic particles in membrane integrity testing
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Use of paramagnetic particles in membrane integrity testing
چکیده انگلیسی

Current online methods of testing membrane integrity – turbidity and particle counting/monitoring – are non-specific and offer moderate sensitivity. An alternative method of probing membrane integrity utilizing magnetically susceptible particles was evaluated as a means to improve both specificity and sensitivity. Compromised 0.6 μm polycarbonate track-etched membranes were challenged with magnetically susceptible particles of 1 μm diameter. Particles that breached the compromised membranes were successfully separated from the filtrate using a particle collector under the influence of a magnetic field. The particle capture efficiency decreased with higher filtrate flow velocity. The captured particles were readily released in the absence of a magnetic field allowing further concentration in a subsequent elution step and increased system sensitivity. Sample calculations show that the proposed technique is a plausible one for large-scale applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 318, Issues 1–2, 20 June 2008, Pages 176–181
نویسندگان
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