| Filtration Characteristics of Insoluble and Soluble Colloids | ||
| Rafiq Nabi1, Simon Biggs2, Colin Poole2, Dave Hebditch3, Glen Baker4 and Wayne Clark4, (1)Institute of Particle Science and Engineering, School of Process, Environmental and Materials Engineering,, University of Leeds, Houldsworth building-LS2-9JT, Leeds, United Kingdom, (2)IPSE, University of Leeds, Houldsworth building-LS2-9JT, Leeds, United Kingdom, (3)British Nuclear Group,, Reactor Sites, Berkeley Centre, Berkeley, GL13 9PB., Gloucestershire,, United Kingdom, (4)Project Services Limited,, Hinton House, Risley, Warrington, WA3 6AS., Cheshire, Specific cake resistance using unstirred “dead-end” constant pressure filtration on an insoluble (titanium dioxide) and a soluble (magnesium hydroxide) colloid have been determined, as a function of pH. The specific cake resistance was correlated across a range of pH conditions with electroacoustic zeta potential measurements. The shear yield stress was also measured as a function of pH for both materials and correlated with the specific cake resistance. These results show that the analytical approach taken for an insoluble colloid is also applicable to a soluble colloid, but over the narrow pH range where the colloid remains insoluble. Extended Abstract Status: File Uploaded | ||