When it comes to metering water flow — drinking water or wastewater — full-bore mag meters offer many advantages. While the underlying technology based on Faraday’s Law of electromagnetic induction is shared among all styles of full-bore mag meters, specific implementations have impacts on longevity and accuracy. Here is what to look for when the time to choose arrives.
By comparing four types of aeration blowers designed specifically for wastewater treatment, this white paper educates engineers on how to develop a selection process best suited for their operation. The paper focuses on minimizing energy consumption and total cost of ownership of the aeration blower system. Download this white paper for a detailed comparison of real operating data on aeration blower technology.
Understaffing, upcoming retirements, and finding qualified replacements seem to be recurring themes in the water industry. Perhaps the answers are as much about the tools we use as the people using them. Here is how a new approach to utility data management can capture the knowledge of retiring workers, share the insight across all disciplines, and shore up the skills and interests of the next generation.
Publicly Owned Treatment Works (POTWs) are faced with the challenge of processing the effluent wastes of multiple sources: residential, industrial, and environmental. Under laws governing pretreatment, the ultimate responsibility in determining whether or not industrial effluent meets criteria for treatment belongs to the POTW. Once the POTW has the effluent waste within the confines of its treatment facility, it is accountable to the federal, state, and local regulations governing the quality of the wastewater it discharges into lakes and streams or injects underground. By Myron L Company
The city of Altamonte Springs, FL, is located just north of Orlando and is home to more than 43,000 people. The city’s Water Distribution and Wastewater Collections Division is responsible for the operation of a 25 million gallon-per-day capacity aerobic wastewater treatment plant, four water treatment plants, and approximately 80 lift stations spread out across the city.
Mapping the assets of a water treatment, water distribution, or wastewater collection and treatment system is just the means to an end. Maximizing value from that effort requires systematic planning and a healthy curiosity for looking into patterns of activity. Here are some considerations for turning raw asset data into more valuable benchmarks for better decision-making across multiple aspects of water operations.
Every day you hear things like “push your data into the cloud” or the newest functions of “cloud computing”. But what does this all mean? And what does it mean for utilities and facilities? Well, if you’re looking into Cloud SCADA, it can mean then difference between having to purchase and maintain software and hardware versus utilizing the internet and cloud computing platforms to serve as the framework for your SCADA system. That translates into time and money saved in the long run.
Total nitrogen (TN) has become a compound of concern because of its impact on eutrophication on water sources. And as more states begin to set limits for TN, accurate testing becomes paramount. Unfortunately, multiple labs and variable test procedures can lead to disparities in final results. Many of today’s test methods are also time consuming, expensive, and even unsafe for lab technicians to use.
An independent Midwest refiner operates refineries in multiple states with a combined crude oil processing capacity of more than 500,000 barrels per day. The company recently approved a project to improve the safety of its plant and reduce its costs for nitrogen gas used for tank blanketing. Read the full report to learn more.
Pangnirtung is an Inuit hamlet in the Canadian territory of Nunavut, located on Baffin Island. Fredericton based integrator, exp Services Inc., was selected for the nine million dollar renovation of Pangnirtung’s secondary municipal wastewater treatment facility. They chose VTScada for the brand new Supervisory Control and Data Acquisition (SCADA) system which gives the operators the ability to monitor and control the plant, receive alarms and notifications, view historical data trends and report.
Reducing water loss and saving money are two of the highest priorities—and most consistent challenges—facing water professionals. Both of these issues stem from water pressure control.
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.
There are several basic methods for reducing harmonic voltage and current distortion from nonlinear distribution loads such as adjustable frequency drives (AFDs). Following is a description of each method, along with each method’s advantages and disadvantages.
Organic carbon compounds vary greatly. In fact, one of the first lessons in most introductory Organic Chemistry courses explains that the number of possible carbon compounds is virtually infinite due to carbon’s ability to form long, chain-like molecules. While chromatographic methods like gas chromatography (GC) or high-performance liquid chromatography (HPLC) are able to make quantitative determinations for specific compounds, the user must first know which specific compounds to look for.
When water and wastewater plant operators can’t get accurate flow measurements or analytical readings — or lack confidence in their instruments’ readings — it creates challenges with the process. When substandard water goes to homes and causes a boil order, or discharge pollutes a lake or reservoir, the resulting bad press, fines, and potential lawsuits erode public confidence. Avoiding these kinds of problems is rooted in good preventive maintenance habits.
Water and wastewater utility operators work diligently to operate within strict guidelines, ensuring their facilities are producing the best drinking water and highest quality effluent possible. Despite all their efforts, however, it can be easy to fall outside of regulatory compliance without even being aware. The key to avoiding problems like these is to understand how silent noncompliance can happen and knowing when to raise a red flag.
As digitalization continues to grow in the water and wastewater industry, cybersecurity becomes an increasingly important responsibility.
The first SWAN Digital Twin Workshop brought together key voices from around the world representing water utilities, academia, and technology vendors to help build consensus on the foundational definitions and guiding values needed to underpin digital twin concepts and architectural framework.
Water scarcity. Aging infrastructure. Uncertainty due to climate change. Experts from across the water sector agree that water challenges are intensifying, and that action and public awareness is a necessity. Now we have the need — and the opportunity — for those same voices to raise the volume on one of the most powerful ways to address increasing water threats: digital innovation.