The City of Dartmouth, MA, Water Pollution Control Division is responsible for operating the town’s 3 million gallon per day wastewater treatment facility, a testing laboratory, a composting site, a sludge
facility, and 21 sewerage‐pumping stations. Interestingly, the wastewater treatment plant also composts its biosolids residuals (combined with brush and yard waste from local landscapers) into marketable quality product, which is sold commercially.
The Dartmouth facility utilizes emulsion polymers to aid in the dewatering of the sludge. With plant personnel always striving for improved efficiencies, polymer usage was targeted as an area for improvement.