Wastewater treatment plant inlet flow monitoring

Flow measurement in a large sewer pipe at the inlet of a large wastewater treatment plant

Customer

Water utility managing different wastewater treatment plants
The site to be measured is under the observation of the environment agency

Task definition

Allow precise flow measurements, even when the channel is surcharged, what regularly occurs
Conditions: high velocities with shallow flows, no flow shutdown possible
Measurement location: inlet of a wastewater treatment plant, before the raw grid (bar screens)
Installation has to be done without entering the manhole
Partly filled circular pipe (DN1500)

Solution

Installation of a RAVEN-EYE^® flowmeter with an ultrasonic level sensor (ULS-06) combined with an electromagnetic velocity sensor EMV-500 for flow velocity measurement during surcharge conditions
Custom made rail mount
Monitoring: UNI-TRANS with patented hybrid flow measurement algorithms
Online platform 123flow.com to remotely view data and generate reports