Case Study 104: Air Pollution Controls
Industry Sector: Environmental
Regenerative Thermal Oxidizers

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NEW TECHNOLOGY APPLIED:
Siemens Simatic S7-300
Siemens Simatic HMI MP 277

PROJECT DESCRIPTION:
Staneco designed controls for two thermal oxidizers used for treatment and abatement of malodorous emissions at a waste treatment facility. The oxidizers consisted of multiple gas burners which heated combustion chambers containing ceramic pellets. When the process gas was passed through the pellets, the organic chemicals are oxidized, neutralizing them. In order to prevent overheating of the ceramic pellets, a series of dampers were switched based on either time or chamber temperature. As the chambers were switched, some gas escaped unprocessed. To remove these gases, a purge operation was included which re-circulated the untreated gasses. Temperatures and operation of the valves was monitored and alarmed.

PROJECT OUTCOME:
Malodorous emissions were eliminated meeting local requirements.

 
Environmental: Air Polution Controlls