SCRUBBER MANUFACTURER Quality Control and Testing Procedures for Scrubbers
SCRUBBER MANUFACTURER Quality Control and Testing Procedures for Scrubbers
Quality Control and Testing Procedures for Scrubbers by Scrubber Manufacturers
Waterman Engineers Australia
In wet packed bed scrubbers a solution is drawn up by the circulation pump and dispersed down over the packing through spray headers. The high-velocity gas stream strikes the drops and vaporizes them into small droplets.
Conductivity is one of the most common testing methods used to monitor scrubbing chemical concentration. As the scrubbing chemical is depleted its contribution to the overall conductivity value decreases.
Quality Control and Testing Procedures for Scrubbers
Scrubbers are designed to remove air pollutants such as sulfur dioxide (SO2) and fine particulates from industrial processes. The device works by injecting a liquid into a gas stream and allowing it to react with the pollution to form a waste product that can then be captured and removed from the system. There are several different types of scrubbers. They can be found in industrial facilities such as power plants, manufacturing and processing plants, chemical factories, cement factories and oil refineries.
The most common type of scrubber is a wet scrubber. This device uses a mixture of water and limestone to capture SO2 in the flue gases produced by coal-fired power plants. It is referred to as flue gas desulfurization (FGD) technology. This technology reduces SO2 in the atmosphere and helps power plants meet federal and state pollution regulations.
When the gaseous SO2 passes through the scrubber it combines with the lime or limestone to form several byproducts. One of these is calcium sulfate, or synthetic gypsum. This is a recyclable product that can be used in wallboard and cement manufacturing, and as a soil amendment for agricultural and construction applications. The byproducts are disposed of in approved landfills.
A dry scrubber can remove SO2 from a gas stream by injecting a dry sorbent into the mixture. This eliminates the problematic liquid waste stream and enables the scrubber to be more compact. This type of scrubber is also used to clean up acidic emissions from combustion incinerators and wastewater treatment plant boilers.
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