CAKE FILTRATION-RATE EQUATIONS - A REVIEW OF CLASSICAL AND MODERN APPROACHES
MINERALS ENGINEERING, cilt.6, sa.7, ss.775-783, 1993 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 6 Sayı: 7
- Basım Tarihi: 1993
- Doi Numarası: 10.1016/0892-6875(93)90008-b
- Dergi Adı: MINERALS ENGINEERING
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.775-783
- Anahtar Kelimeler: CAKE FILTRATION, FILTRATION RATE, AVERAGE SPECIFIC CAKE RESISTANCE
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
Fundamental concepts of cake filtration - cake compressibility, liquid drag-pressure drop relationships, average porosity, and external mass balance - are presented. Two distinct approaches to the formulation of cake filtration rate, the classical and the modern theories, are critically reviewed. The definition of average specific cake resistance is re-examined. The equivalent specific cake resistance for a compressible cake is shown to be the harmonic mean of local specific cake resistances. Weaknesses of the classical theory in data analysis are pointed out. Recognition of the cake-filter medium interface by the modern theory as the rate-controlling part of the filtration system is stressed.