Open Channel Flow for Industrial Wastewater Treatment Plant

August 01, 2022 | Case Studies,Blog

Open Channel Flow Measurement for Phu My 3 Industrial Wastewater Treatment Plant

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Phu My 3 SIP is one of two industrial parks set up under the Co-operation and Development Agreement between Vietnam and Japan. The core values of the park include creating sustainable development, with a strong focus on environmental protection, delivering value to its customers, as well as profoundly contributing to the socio-economic growth of the local area.

Located in the industrial park is a Wastewater Treatment Plant  (WWTP) with an aim to safeguard investors from the risk of breaching environmental regulations. A Wastewater Treatment System is one of the compulsory requirements in an industrial park's infrastructure to Discharge Monitoringachieve the target of environmental protection. The WWTP applies comprehensive state-of-the-art technical mechanisms and processes, including screening, equalizing, aerobic and physiochemical treatment, sludge stability, and final disinfection.


Effluent Monitoring with the AVFM 6.1

The WWTP is the first of its kind to produce effluents meeting quality requirements under Class A of QCVN 40:2011/BTNMT. As part of this, an automatic monitoring system was required in accordance with current regulations, to carefully monitorPartially filled pipe application effluents and transmit the recorded data to the local government regulator. At the time, they did not have a flow meter installed so there was no way of accurately measuring the flow rate of the treated effluent at the wastewater treatment plant. To ensure they had the right solution for their application they contacted Pulsar Measurement partner TVA Technical Co Ltd.

To ensure that TVA Technical Co Ltd recommended the right product for the WWTP, they completed a survey of the site. From the survey, TVA Technical Co Ltd suggested the AVFM 6.1 Area-Velocity Flow Meter.

The AVFM 6.1 uses a submersible ultrasonic sensor that measures both level and velocity of flowing liquid to calculate flow measurement in an open channel or pipe. The unit can measure forward flow up to 6 m/s (19.7 ft/s) and reverse flow up to 1.5 m/s (5 ft/s). The electronics and software sample and average flow rates continuously provide stable readings.

The standard 26-million-point data logger was perfect for this application. With the ability to store time and date-stamped flow values at 10-second to 60-minute intervals. Daily flow reports are automatically created where total, minimum, maximum, and average flow rates are displayed on the LCD display. Transfer the log files and daily flow reports to any USB flash drive by connecting to the logger’s USB output.


The AVFM 6.1 is the ideal solution

The AVFM 6.1 was easily installed at the open channel and the results allowed the WWTP to read and record flow rates of their treated effluent and help provide accurate reports to the local government. Since installation, the wastewater treatment plant has been pleased with the results that they have received from our Pulsar Measurement solution.

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