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Home » Acoustic panels quiet harsh noise in wastewater treatment plant
The Orange County Sanitation District (OCSD), Huntington Beach, California provides wastewater collection, treatment, and disposal services for approximately 2.6 million people in central and northwest Orange County. OCSD operates two wastewater treatment plants in Huntington Beach, CA that process an average of 185 MGD (million gallons per day).
OCSD Plant #2, which came on stream in 2018, handles 65 MGD of the District’s wastewater stream. In the two-story Centrifuge Building, where sludge dewatering and odor removal take place, acoustic treatment was specified in order to reduce the excessively high sound level generated by a myriad of noise-producing equipment and comply with OSHA-designated guidelines. On the second floor, there are five Alfa-Laval G3 centrifuges, two to three of which are operated at any one time. The first floor features piston pumps, a plant air system with two 500-gallon air receiver tanks, exhaust fans, mechanical grinders, and a variety of other noisy pieces of equipment.