To reduce of the protein hydrolysate content we included washing of the filter cake
. Enzyme hydrolysis is environmentally friendly.
Among the important functions of water-based drilling fluid were to form filter cake
on the wall of the well bore, prevent water leakage, and maintain the stability of the well wall .
The fresh filter cakes
after fluid loss tests were cut into two equal halves.
The unit uses deep filter cakes
for optimal performance in grinding and metal cutting machining operations where very fine chips are generated.
In Swaziland, the country's four sugar mills produce large quantities of waste, including filter cake
. These sugar mills are expected to declare their production of halogenated filter cakes
and spent absorbents (Anon., 2004b).
These stages are invariably encountered in compressible filter cakes
that are formed when fine and colloidal suspensions are filtered.
Over the next six months, however, it will be expanded with additional equipment including: swirl fluidiser and spray fluidiser technology specifically for drying pastes, filter cakes
and highly viscous liquids.
Special form, which disperses into offset medium in kneaders or extruders, and can replace filter cakes
to allow wider formulation freedom.
Materials having high moisture contents, such as filter cakes
and slurries, are conditioned and prepared for introduction to the drying system by using the Raymond Double Paddle Mixer.
The filter produces up to four-inch-thick dry filter cakes
and clean filtrate in as little as 60 seconds and can be configured for flow rates of 1 to 10,000 GPM, producing up to 115,000 cubic feet of dry solids per day.
Solids can he separated from suspensions, filter cakes
further dewatered and dissolved impurities washed out by a displacement cycle for a better quality end product.