Due to the dynamics of liquids and gases flowing through elbows, valves, pumps, and other pipeline structures, every flow-meter methodology has its own design limitations. Unlike Venturi meters, pitot tubes, orifice plates, and other devices, V-Cone meters provide highly accurate and reliable readings with minimal straight-pipe length restrictions and virtually no maintenance, in pipe sizes up to 120”.
The main lift station serving the waste water treatment plant in Morgan’s Point, Texas, continually experienced problems with its three standard non-clog pumps. The pumps frequently clogged when rainfall totals reached or exceeded 2 inches. Shop rags, pieces of 2 x 4 lumber, plastic bottles, gloves, and wet wipes all commonly clogged the pumps when the standard demand increased. Pump removal, unplugging, and recurring repairs were required, but the service company was not always available for immediate assistance, causing problems for residents serviced by this lift station.
Denver Water serves 1.4 million people in the city of Denver and the surrounding suburbs. It is the largest — and oldest — water utility in the state of Colorado and its service area covers more than 335 square miles.
Water industry professionals are experiencing a data deluge. There’s a lot of data out there, gathered from sensors monitoring everything from water quality to pipe bursts — but altogether, it’s too much data divided among too many silos to make sense of what it all means.
Maintenance and performance of pressurized water distribution systems require a complete grasp on the pressure ratings of every component within the system. Mueller gives valuable insight here for pressure rating standards needed for flanged valves.
The need for a solid cybersecurity strategy has been discussed and debated for almost a half a century now, and yet the basic worm-type attacks first documented back in 1972 are still with us today. Why? Because even the most basic measures to protect control systems from these types of attacks are still not systematically employed.
The City of Rushville, Indiana had to remedy a consent order filed in 2007 for its untreated combined sewer overflow (CSO) discharges that were polluting the Flatrock River, a violation of the Clean Water Act. The city originally planned to install a 1 MGD stormwater storage tank, but was approached by Aqua-Aerobic representatives with a pilot test proposal utilizing a new technology.
ABB provides an extensive selection of proven measurement and analytical products and solutions for power generation industry applications.
Digitalization of the municipal water treatment industry is fragmented today, with instrumentation, control, and automation technologies mixed with manual operational activities. Such infrastructures can be detrimental in cases of hydro-geological events, such as severe storms and earthquakes. The good news: When natural disasters strike, digitalization can help get municipal water treatment back online quickly and effectively.
The development of Industrial Control Systems (ICS) over the past two decades has changed the face of many industries. Operation Technology (OT) — largely industrial equipment — has become increasingly connected, and the integration of Information Technology (IT) components allows such devices to leverage software that drives data collection and analysis, resulting in enhanced performance and ultimately "smarter" machines.
A Chicago stormwater diversion tunnel designed to correct a chronic flooding problem that has plagued the city’s Albany Park neighborhood over the past decade has been recognized for its effectiveness and ingenuity.
Constant monitoring of critical motors while de-energized prevents failures on startup, reduces unscheduled downtime, saves on major rewinding repairs and increases personnel safety
Siemens offers to our customers the ability to both make process measurements and to remotely monitor the activity and health of that instrumentation without the need for SCADA systems or other expensive process control room products. By utilizing Siemens’ ability to offer unparalleled flow, level, pressure, temperature, and weight measurement as well as valve control, we can provide a broad range of process measurements and offer unequaled monitoring of the health and performance of those products.
One of the most common processes in wastewater treatment is the activated sludge method, which biologically treats the wastewater through the use of large aeration basins. This process requires the pumping of compressed air into the aeration basins where a diffuser system ensures the air is distributed evenly for optimum treatment. The energy needed to provide compressed air is a significant cost in the operation of a wastewater treatment plant.
Facility administrators will find the advanced ST100 Series Thermal Mass Air/Gas Flow Meter from Fluid Components International (FCI) helps them improve the accuracy of specialty gas point of use and sub-metering operations to achieve accurate billing in their labs for better cost tracking and control.
Coriolis measurement has been adopted as a default technology in many application scenarios due to its high accuracy and immunity to process variables (temperature, pressure and flow profile). However, Coriolis wasn't always widely accepted. Two applications, in particular, helped what was once a nascent flow measurement technology gain a foothold in the marketplace.
Fox Thermal Flow Meters use a constant temperature differential (constant Δ T) technology to measure mass flow rate of air and gases.
Dosing of the precipitant was adjusted manually based on the laboratory measurement value of the daily composite sample and so was unable to respond to possible peaks. Although being compliant with the effluent limits, the values observed fluctuate between 0.2 and 0.8 mg/L.
Hach LDO® technology improves the efficiency of pharmaceutical plant’s wastewater treatment process, helping to protect the environment and the community.
Levels of phosphorus, a chemical element that promotes organic growth, must be controlled in wastewater coming from beverage, food and dairy processing plants. Failure to control phosphorus accurately has a negative impact on water quality and can lead to large fines.
Compliance and consistent high quality are two of the key goals within the beverage industry. Hach® provides support for these goals through comprehensive analyses of water and beer.
Everyone wants peak accuracy from their instrumentation, but nobody wants to disrupt their field process to verify it. Purvang Upadhyay, the global water industry manager for measurement and analytics with ABB, shared an attractive alternative to such disruption with the Water Talk moderators at WEFTEC 2019 — in-situ verification. This classic example of digitalization in the water industry enables users to check the health and accuracy of an electromagnetic flow meter against a digital ‘fingerprint’ of that meter’s performance the day it was originally calibrated or installed.
When low population density and troublesome topography make traditional gravity sewers cost-prohibitive, septic-tank effluent-pumping (STEP) technology offers an affordable alternative. In this Water Talk discussion, Mike Saunders, market segment leader for engineered systems at Orenco Systems, outlines how to match the right technology to the need. Orenco’s new decentralized liquid-only sewer systems treat septic effluent that is reduced by about 80 percent of its strength. Its smaller-diameter pressure mains run for 10 miles without supplemental pumps and install at just a fraction of the depth of traditional sewers. The approach minimizes biosolids, runs on little pumping power, and requires no blowers, so it minimizes energy requirements and keeps both installation and maintenance costs lower than those of conventional sewer systems.
For the past 10 to 15 years, wastewater treatment operators have faced increased clogging issues related to baby wipes, disposable diapers, rags, and other foreign debris. At the same time, the use of low-flow toilets has increased the solids concentration of sewage flow. This discussion with Brad Jernigan and Christina Foster from Pentair addresses differences between how grinder pumps (low flow/high head) and chopper pumps (higher flow/lower head) can benefit that situation. They also compare the advantages of how axial-cutter design vs. radial-cutter design can aid in shredding large debris, bit by bit, without sucking it into the body of the pump where it can clog and shut down the unit.
Joe Vesey, senior vice president and chief marketing officer of Xylem, is a believer in approaching water challenges holistically to create economic value and social value for water treatment operators and the communities they serve. At WEFTEC 2019, he entertained Water Talk’s moderators with his company’s involvement in confronting increasing stresses on water’s supply-and-demand equation. The discussion ranged from saving one municipality $500 million by solving a combined-sewer-overflow (CSO) challenge with more innovative technology to recycling rainwater into a beer celebrating Manchester City’s Premier League championship, and beyond. Throughout it all, he cited the importance of raising awareness, educating, and enabling people to do something better through a mix of technology, sustainability, and innovative digital technology partners.
Coping with service or repairs to aging pipeline infrastructure without disrupting customers is always a challenge. Chris Vazzana of Hydra-Stop has a better idea that includes the use of insertion valves, which enable water utilities to install a permanent valve into a live water main without ever shutting down the line. His discussion with the Water Talk moderators at WEFTEC 2019 details how the initial perception of insertion valves as a temporary measure is no longer true, and how these time-saving devices are now permanent assets that have passed AWWA testing, including burst testing and 500-cycle testing. Chris also describes the company’s newest 24” insertion valve, with an anecdote about saving a utility and 10,000 of its customers from a disruptive service shutdown.
With electric motors playing such key roles in water and wastewater treatment and water distribution operations, protecting those motors is fundamental to keeping processes flowing smoothly. In this Water Talk interview, Steve Zbytowski, product manager for motor protection and soft starters with Eaton, shares his insights on ground-fault identification that helps maintenance personnel pinpoint exactly where the fault is and react to remedy the situation quickly. He also relates how complementary Internet of Things (IoT) network communication improves data collection, making it easier to manage field-monitoring and troubleshooting efforts and improve the overall effectiveness and efficiency of motor operation.