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Wastewater treatment facilities around the country are experiencing problems controlling VOC emissions from engines burning digester gas because catalytic oxidizers that are typically used to control VOC emissions are being fouled by silica dust. Catalytic oxidizers were installed as post combustion devices at the Bergen County Utilities Authority (BCUA), Little Ferry, New Jersey wastewater treatment plant to control the carbon monoxide (CO) and volatile organic compounds (VOC) emissions from engines burning natural and digester gases. Upon start-up, silica dust resulting from the combustion of volatile methylsiloxanes (VMS) found in the digester gas was found to foul the catalyst and hinder engine performance. As a result, a feasibility study and pilot testing study were performed to identify, select, and implement a digester gas cleaning system. Using the information from the pilot testing, a full-scale system was designed and installed. Critical design issues were evaluated and incorporated into the final design.

Document Type: Research Article


Publication date: 2002-01-01

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