Features of the Countercurrent Air Stripper

A countercurrent packed-tower air stripper has two major components (Fig. 1)  

A high capacity blower forces ambient or heated air into the bottom of the air stripper where the volatile compounds are removed from the water covering the packing elements. The air continues to remove volatile constituents from the water as it is forced up through the column. A demister element at the top of the column prevents the escape of large amounts of water vapor with the exiting air. 

The hydraulic head necessary to pump the influent water up to and through the aeration nozzle may he supplied hy existing treatment or supply well pumps, or an additional water pump may he supphed. 

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