In sewage treatment plants, flow sensors are primarily installed for internal reasons. Ultrasonic flow meters are used to control the flow velocity in partially filled and fulfilled pressurized pipes, specific plant components, for leak detection or to control the use of additives. International regulations such as the EU-Directive for handling municipal waste water require flow metering for a continuous surveillance of waste water flow. Defective flow monitoring in sewage-treatment plants can therefore influence...
Products from BD|SENSORS are becoming increasingly popular in the environmental engineering sector, too. In the industrial and municipal water industry, electronic pressure sensors are used for a variety of purposes, for example measuring filling heights. In this case, the materials must meet very specific requirements. They must be able to withstand aggressive media and mechanical loads.
The Township of South Glengarry installs a new Greyline AVFM 5.0 Area-Velocity Flow Meter to measure continuous discharge from their municipal sewage lagoon. The sealed ultrasonic sensor is mounted in a horizontal 12` PVC pipe. The AVFM replaced a magnetic flowmeter that was unable to measure seasonal low flow rates.
Town operators were plagued by high level alarm call outs at two new sewage lift stations. Read how they used Greyline`s hybrid ultrasonic level controllers with dual sensor capability to put an end to level alarms.
Sewer Meters monitor sewage level and flow within the sewers. Benefits gained by sewer monitoring include:
(1) Detection of overflow conditions before overflow occurs thereby preventing hazardous environmental events.
(2) Detection of blocked sewer pipes, allowing quick and focused maintenance thereby reducing maintenance costs.
(3)Detection of over-used and under-used pipes for long term municipal planning.
(4) Monitoring of sewage flow in sensitive sites such as flow to the river or sea.
(5) Estimation of...