Wastewater Treatment Facility Installs Thermal Oxidizer to Generate Renewable Natural Gas

Image courtesy of Catalytic Products International

A wastewater treatment facility will utilize a direct-fired thermal oxidizer for the abatement of volatile organic compounds (VOCs), hydrogen sulfide and other separated constituents from the wastewater treatment gas-separation process.

The 650 scfm direct-fired thermal oxidizer, designed and manufactured by Catalytic Products International (CPI), Lake Zurich, Ill., will burn the tail gas from a digester gas conditioning, pressure-swing adsorption (PSA) system. The thermal oxidizer will destroy VOC emissions with 99 percent destruction rate efficiency, say CPI.

The project was initiated to generate renewable natural gas, which can be injected into the local distribution network while reducing emissions from the facility. CPI worked with the facility and its engineering contractor to design and deliver the thermal oxidizer, which includes a stainless steel exhaust stack and support structure as well as system modifications to locate it outdoors. The oxidizer was delivered as separate components and assembled on-site by the wastewater treatment facility personnel.

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Avoiding scale, corrosion and microbiological growth — all of which diminish effective heat transfer — is the focus of any water treatment approach for water-contacted process heating and cooling equipment.

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