A 75 MGD U.S. water reclamation plant serves a city of 400,000 population. The treatment process stabilizes biosolids in 4 anaerobic digesters. After years of use, the lids on two of the digesters collapse forcing emergency repairs.
In order to repair the digester lids, an outside contractor is hired to remove and dewater the biosolids using two belt presses. The presses are located outside, near the digesters.
975 - UNITED CARUSOL® Liquid Permanganate is added into the dilution water, treating the biosolids as they are pumped to the belt presses.
Neighbor complaints of nuisance odors have been eliminated.