Grade Enhancing General

For the froth to perform a grade-enhancing (cleaning) function it is clearly necessary to reduce the entrain-ment of undesired solids.

The froth which forms at the pulp-froth interface is a close-packed structure of spherical bubbles (kugelschaum), which it will have a volumetric water fraction of about 30%. The solids content of this water will not have been selectively separated. To reduce the amount of entrained solids at the froth overflow it is necessary either to reduce the water content by drainage or to displace the solids in the inter-bubble water by adding external wash water at the upper froth surface.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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