iFIX HMI/SCADA Babysits Wastewater Treatment at Night | Velotic
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iFIX HMI/SCADA Babysits Wastewater Treatment at Night

Discover how iFIX HMI/SCADA monitors wastewater treatment. Learn how this combination improves night-time operations

Case study Print to PDF
Company
Iowa City
Industry
Water & Wastewater
Products
iFIX, HMI/SCADA, Proficy Industrial Software

Overview
LOWER COSTS
Night-time monitoring & alarms
FASTER RESPONSE
Alarm notifications
LESS RISK
Reliable SCADA & alarm management
Challenge

Challenge
Resting Easy with Automation

The municipal treatment plant for Iowa City, Iowa has 15 mgd (million gallons per day) of treatment capacity between two plants. The system serves a population of 67,000, a wastewater treatment plant (WWTP) population equivalent of 120,000 since the system services all of Iowa City and small town of University Heights as well as the University of Iowa with a student population of almost 30,000.

The City had been staffing their WWTP system 24/7, but could see that with the upgrade to GE DVernova’s iFIX HMI/SCADA, the night operator was unproductive and bored. The overnight position was difficult to keep staffed and if a dramatic event occurred at either facility, the night shift operator would likely be unable to handle it himself.
Solution

Solution

“Once we upgraded our SCADA, we were close to letting the SCADA handle the plant at night, but we didn’t have the key pieces. We needed to work out a system for reliable notifications, that’s where iFIX came in,” said Dave Elias, Wastewater and Landfill Superintendent for Iowa City.

"We have been relying on the WIN-911 system and staffing our facilities only 10 hours per day for years now. It’s a computer babysitter."

Wastewater and Landfill Superintendent, Iowa City
iFIX HMI/SCADA Alarm Notification

Iowa City runs an iFIX SCADA system with three nodes operating in three different locations via a local area network. iFIX is set to run 1900 alarms ranging from monitoring tank levels and flow failures to building temperatures and rises in plant conditions. To ensure full coverage, the municipality runs a back-up copy on a separate PC in another location.

The WWTP facility’s two plants are five miles apart, with one operator on duty on the weekend. With alerts on, that operator can be more productive, monitoring plant conditions in one location while at another.

“It’s helpful for operations to be away from the computer system to respond to any alerts but still see if any other conditions are raised while they aren’t near the computer,” said Albert Figueroa, Senior Treatment Plant Operator.
Results

Results
Early Warnings and Fast Response

Based on the iFIX A&E data, we were called into action when a waterline broke in the basement of one of the WWTP buildings, triggering an alert. “[HMI-SCADA] sent us cell phone notifications and we had early warning to respond,” said Elias.

The intelligent decision matrix also allows the City to categorize alerts, recognizing urgent responses from less immediate concerns. The urgent alerts are sent as text messages to the maintenance staff on-call cell phone, where the software makes it easy for that employee to call for additional assistance, if needed. The less urgent alerts are sent to the maintenance supervisor’s computer station, where items are evaluated and prioritized for action.

“[The software] sends different levels of response based on the issue,” added Figueroa. “We also receive early warnings, which allow us to start investigating before issues become big problems.”

"[The software] has given us the ability to respond early. It’s robust as a warning system. If one alarm doesn’t get your attention, the next ten will."

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