Gas purification techniques

Acid gas scrubber

At strongly acid degasses with for example has high concentrations of HCl
the scrubber itself will become acidious. The maximum acid degree must be regulated by means of the sluice or adding base. This is the case at wet scrubbing at combustion installations where in the first step a acid scrubbing is placed to capture the gross from the HCl.
At very large degas flows from which NH₃ must be removed for example , preferably several scrubbers are placed parallel instead of one very large scrubbers is used. If low end concentrations are necessary, it is sometimes necessary place scrubbers in serial.
The advantages of the acid scrubber are:

• Relatively compact

• Very high disposal output

• Can be built modular, multiple step systems

The disadvantages are:

• Acid usage, pH-targeting designated

• Effluent, the quantity can be limited by sending the sluice on for conductivity  or density. If economically possible, in certain cases, formed salts are climbed the ladder and are re-used

The acid scrubber is mainly applied in the manure processing -, natural degeneration -, treatment of waste -, manure -, pharmaceutically -, foundry -, chemically -, fish food -, sterilization (ethylene oxide removal) industry. 

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