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Sumps are used in municipal wastewater treatment facilities as a reservoir for water containing sediment, oils and other contaminants. These items must be removed prior to the clarification and chlorination processes. In the sump, heavy inorganics such as sand, gravel, seeds, and coffee grounds settle to the bottom by gravity. The wastewater then flows into the primary settling basins, where smaller particles settle out. Baffles act as a gatekeeper to prevent debris from moving to the next process; however, some debris may pass through. In the next stage mechanical devices skim off oil and solids that float to the top. The water that enters these sump tanks must be carefully monitored. An unexpected rise in water level can lead to solids passing over baffles. Falling water levels may also allow for oils to pass under the skimmers and into the clarification process.

Continuous water level measurement and control is essential to maintaining a consistent flow rate. This ensures that water passing into clarification and chlorine tanks, and ultimately back to households, businesses or the environment is free of undesired waste. That is why this municipal facility chose the EchoSpan LU83. EchoSpan is perfect for wastewater applications dealing with continuous measurement that require reliability, repeatability and accuracy. By combining a DataView LI55 controller with EchoSpan, its capabilities can be further extended to automate pump control or monitor open channel measurement of influent / effluent with feedback to SCADA.

If you would like more information on how accurate level measurement can work for you click here.

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10500 Humbolt Street
Los Alamitos, CA 90720 U.S.A.
T: (562) 598-3015
level.solution@flowline.com

 

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