Gas Detector for Wastewater Treatment Plants

A wastewater treatment facility is a wet maze of rooms, pipes, pumps, wells, chambers, concrete tanks and settling basins. Each treatment stage the wastewater goes through involves hazardous gases that may be already present, are produced or are added to complete the process. To ensure the safety of the workers, equipment and the facility, every area presenting a gas hazard should be monitored, including the gas storage rooms, ozone generator room and any room that gas passes through. In the larger, open areas, a fixed gas detection system is suitable; in confined spaces that operators enter and where gas may be present, portable gas detectors are more appropriate. The most common hazardous gases found in this type of facility are hydrogen sulphide, methane, ammonia, carbon monoxide, chlorine and oxygen deficiency. Some facilities may also use ozone, chlorine dioxide or sodium hypochlorite with the chlorine during the sanitization treatment process. Furthermore, sulphur dioxide is often used to de-chlorinate the water once the treatment process is complete. CETCI's FCS-4-M System Controller offers a fixed, continuous gas monitoring solution with four gas channels, four programmable relays, a door mounted audible alarm and a standard ModBUS® RS-485 or optional BACnet RS-485 output signal for communicating with a building automation system. The four gas channels can be configured with any combination of analog or digital transmitters with the same or different types of gas sensors. For larger applications, the FCS is available in 8, 32 and 128 channel models. Other value added, optional features analog inputs and/or analog outputs, manual equipment ON/OFF switch, top mounted strobe, remote strobe and horn combo and an RDM Remote Display Module that offers the ability to view the gas level readings in a separate location from the controller and transmitters. The potential for physical damage to the gas detection equipment is high in this type of harsh, wet environment. With the proper watertight buzzer and conduit fittings our equipment is IP54 rated and corrosion resistant to help withstand the unpredictable water levels and acidic or caustic conditions from gases like hydrogen sulphide and chlorine when it mixes with water.

For more information about our products, check out our website at www.critical-environment.com or to discuss a tailored gas detection solution for your application, contact us at 1-877-940-8741.