Treatment of ammonia-containing waste gas generated from the hydrolysis of polyacrylamide
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How is the ammonia-containing waste gas generated during the hydrolysis of polyacrylamide PAM treated? Ammonia, as a malodorous substance, is subject to strict emission standards; I wonder how this is addressed in engineering applications these days?
First, a closed-system process design is adopted from polymerization and hydrolysis to drying； Secondly, during drying, the large volume of hot air used for drying results in a low ammonia concentration, allowing it to be discharged directly after using a taller chimney.
A tall chimney isn’t it a waste? Use water filtration to lead the chimney into the water.
When the vapor pressure is low, washing with water cannot meet the **emission standards**