Albert Heber, of Purdue, is also looking into ways to lessen the stink-by modifying animal diets, for example, or by biofiltration.

Fish mortality and disease can be reduced to less than 10% by combing an ADS system with biofiltration and bioaugmentation of beneficial bacteria.

The biofiltration as a new odor treatment technique being widely applied in composting, had received enormous studied by researchers of various countries during the past decade.