How to Size a Cyclone

By : Branden Drew In today’s world, pollution control is one of the most important aspects of a process. Whether it ispreventing toxins from entering the air, poisoning water sources, or littering the earth, preventativemeasures must be taken. Cyclones are a form of pollution control that reduces larger sized particulatematter in vapor streams. Due to …

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Calcination vs. Pyrolysis, Different Processes in the Same Drying System

Calcining and pyrolyzing are different processes and reactions but both can be done in an indirect fired rotary dryer with typically the same type of feed and discharge systems.  The primary difference in equipment occurs outside the “reactor” or “kiln” which is the indirectly heated dryer. Calcination is the process of thermally treating a chemical …

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What is Ground Remediation?

Remediation is defined by Oxford Languages as the action of remedying something, in particular of reversing or stopping environmental damage. There are three types of remediation, and they are soil remediation, groundwater/surface water remediation, and sediment remediation. This post will focus on soil and sediment remediation. Soil remediation refers to the process of removing contaminants …

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What is Fly Ash?

By : Branden Drew   Fly ash is a by-product of coal fuel combustion. Clay is typically entrapped during the formation of coal. When coal is burnt, the incombustible clay particles are left behind as ash. In grate boilers, incombustible ash agglomerates as cinders through prolonged residence time. The ground clay escapes along with flue …

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What is the Difference between bottom ash (a/k/a CCR) and fly ash?

Coal fired power plants produce a variety of residual waste products from the combustion of coal in boilers, furnaces and incinerators.  Two primary types of ash are those residuals.  Fly ash is a light end, small and air borne particle that flies away hence the name “fly ash”.  It is typically collected in a scrubber …

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How is Methane Gas Released from Animal Manure?

By: Branden Drew Methane is the second biggest factor in climate change by greenhouse gasses. Methane is produced by the decay of organic material and is produced primarily by natural gas and petroleum systems, enteric fermentation (digestion process of animals), landfills, and manure management according to the US Environmental Protection Agency (EPA). Enteric fermentation and …

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