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Sand filters are used for water purification. There are three main types Rapid (gravity) sand filters Upflow sand filters Slow sand filters All three methods are used extensively in the water industry throughout the world. The first two ...
Scrubber systems are a diverse group of air pollution control devices that can be used to remove some particulates and/or gases from industrial exhaust streams. Traditionally, the term "scrubber" has referred to pollution control devices that...
