Solid Liquid Separations

In many circumstances a solid is present in a liquid stream that must be removed. Flotation is often a viable precursor stage, used to increase the percentage of solids, prior to filtration. This type of system can be used to float coal and associated PAHs from runoff water and upgrade the presentage of solids from p.p.m. levels up to 10-25%. Figure 6 gives an example of such a circuit where PAHs from coking coal are floated from a contaminated site run-off water without removing the naturally occurring sand and silt.

Flotation can also be considered as an alternative to settling of naturally hydrophobic materials in wastewater treatment. This type of separation may also be used to remove bacteria or algae from water, or many solid substances from reaction vessels.

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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