Results:

Significant reduction in sludge volume and odours.

Background : 

A Southern Ontario meat packing plant uses a DAF to clean the wastewater of contaminants.  The sludge is scraped from the back of the DAF into a hopper which is then pumped to a holding tank.  The tank was then emptied once per week.  The sludge in the tank prior to treatment was difficult to handle as it would become thick and hard.  The resulting odours from pumping the sludge tank caused complaints from the neighbors.

The treatment process was a continual feed of diluted BCL-4000 and a daily addition of BCP-80 to the sludge prior to the tank.  

Discussion:  

The tank was emptied before the treatment was commenced.  The products were fed according to instructions and the tank was drained of water 2-3 times per week.  The water drained off the bottom of the tank was run until no longer clear.  The tank did not have to be pumped out until 3 weeks after the start of the program.  The resultant sludge was much easier to handle for the hauling company and the odour was significantly reduced.  The complaints from the neighbors about the smell from the sludge have been eliminated.