For 15 years, plans to double the capacity of Michigan’s Zeeland Clean Water Plant remained stalled as the City of Zeeland worked toward a joint wastewater treatment contract with two neighboring Ottawa County communities. As a result, maintaining efficient aeration control posed a challenge for the 1.65 million gallons per day (MGD) facility. When expansion plans moved forward in 2016, the city alleviated those problems with the Xylem Sanitaire CASPERON activated sludge solution process, which eliminated the use of lime to treat waste and significantly reduced the volume of biosolid residuals.
A wastewater plant in Florida originally had one Parkson Aqua Guard® Self-Cleaning Moving Media Screen in operation for approximately 19 years. When the city expanded, a new headworks plant was built in 2009. At this time, two (2) new screens were purchased from a competitor based on cost through a bid process to contractors.
With electricity consumption being a primary operating cost in water treatment and wastewater treatment, steps taken to optimize energy use are critical. Saving energy is more than just an on/off decision. Monitoring and managing energy use — from analyzing pump curves, to reducing non-revenue-water leaks, to scheduling operations around premium-rate windows — is essential. Fortunately, the payback potential can be impressive.
"How much grit is my grit removal system removing?” is becoming one of the more frequently asked questions at Water Resource Recovery Facilities (WRRFs) and wastewater treatment plants. The intrinsic problem of grit and its scouring activity means that efficient grit removal is fundamental for protecting and optimizing downstream WRRF treatment processes and equipment. Advancements in cutting-edge treatment technology, including membrane systems, and the critical need to maximize equipment investments places an even greater emphasis on effective grit removal.
It seems that everywhere that you go in the water industry at the current time, somebody is talking about digital transformation…or if we go back five minutes, it was Water 4.0…and 10 minutes ago (it seems), it was “smart water.” These are all very well used buzzwords that the industry is destined to think about for a short-term and then promptly forget about. In reality, though, we as an industry have been hit by a number of different concepts for a number of different technological aspects for a good number of years now. For almost as long we have had a term for all of this — “widgets.”
When it was formed in 2005, GNHWPCA took possession of all the assets of the existing wastewater system, inheriting bar screens that had been installed in the 1980s when the plant and lift stations were constructed. Their existing bar screens worked, but they were unreliable and very expensive to maintain.
Although an ounce of prevention is worth a pound of cure, all the money spent on regularly scheduled maintenance can add up to a ton of waste — and still result in unplanned downtime — if asset managers can’t reasonably differentiate between which equipment truly needs attention and which doesn’t. Fortunately, data-centric analytics derived from physical performance in real time can make that distinction. Here’s how.
Peracetic acid (PAA) is one of the most versatile and widely used disinfectants on the market. PAA has proven to be an excellent sanitizer and disinfectant in the food, beverage, cosmetic, pharmaceutical, and agriculture industries for industrial water treatment, as well as an excellent disinfectant for use in the wastewater treatment industry.
Ultrafiltration systems can be engineered and designed in several possible combinations based on the application and source water quality. There are different membrane materials, membrane shapes, flow types, and configurations.
Managing three drinking water treatment facilities, multiple pump stations, more than 350 miles of pipelines, and a wastewater treatment facility is challenging even in normal conditions for a small city where agriculture is an economic driver and water demand can exceed 22 MGD.
While the Clean Water Act (CWA) is a federal regulation, the job of enforcing its standards has been kicked to the state level, where results can be mixed. Bluefield Research recently analyzed the trend and its impact, presenting its findings in a recent Water Online webinar. It was also a topic of discussion at WEFTEC 2019, where Bluefield's president, Reese Tisdale, sat down with Water Talk. In the interview, Tisdale addressed the evolution of the CWA, current treatment issues, and financial forecasts for the industry.
It’s no secret that the U.S. EPA has changed course in the last year. But how have those changes affected local water and wastewater treatment operations? And how are those operations going to evolve along with the federal agency?
PFC contamination is the number one drinking water issue today. So how are local and federal leaders working to put an end to it?
Last year was full of twists and turns for the drinking water and wastewater treatment industries. What can 2017’s biggest stories tell us about what’s to come this year?
Though some preliminary regulations have taken place to curb the presence of microplastics in the environment, more research is needed to determine what role wastewater treatment plants can and will play in solving the problem for good.
With water treatment plant operators around the country relying on paper and pen to record critical quality data, there is an opportunity to make life easier online.
If forewarned is forearmed, then monitoring risk, resilience assessment, and emergency planning are essential to keeping water flowing in the face of surprise developments. At ACE19, Bentley Systems’ Senior Product Manager Tom Walski shared how the company’s modeling software running as a “digital twin” for water, wastewater, and stormwater infrastructure systems is helping utilities improve daily operation resilience, noting “a little bit of work has a lot of payback.”
When Eielson Air Force Base, located in the interior of Alaska, found high levels of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) in their drinking water, they needed a solution that was effective, cost-efficient, and operable in extreme temperatures. Calgon Carbon’s Model 10 adsorption system, filled with FILTRASORB 400 granular activated carbon (GAC), was determined to be the best option.
Once you know Grundfos, you realize the company’s commitment to promoting sustainability is genuine. The global leader in pumps spearheads programs worldwide to help promote the efficient and sustainable use of water and energy.
From the largest metropolitan utilities to the smallest water systems, leaks are a problem everywhere. Because it’s difficult to raise consumer prices to offset the losses, non-revenue water has a direct impact on the bottom line of municipal water systems. However, utility managers now have an opportunity to reverse the problem with advanced flow meter technology that combines multiple measurements.
Corrosion control has always been a priority for distributing safe drinking water throughout the world’s networks of pipeline. This has become all the more critical following the outrageous lead poisoning revelations in Flint, MI — an incident caused directly by corrosion of the city’s lead-based infrastructure.
It’s common to see “BPA Free” labels on water bottles and other containers, a response to consumers who have grown increasingly wary of the contaminant. However, testing for BPAs that may have found their way into drinking water sources has traditionally been cumbersome and expensive, so municipalities could be exposing their customers to unsafe levels. The good news is that newer advancements are making it easier to use existing technologies to monitor for the pollutant.
Affordability and maintainability are two of the greatest challenges small municipalities face when constructing and managing sewer infrastructure. With these challenges in mind, it’s important for small cities to choose wisely when investing in a wastewater system that needs to last for 30-60 years.
Over the past decade, there has been a considerable effort in the water sector to address industry shortcomings through collaboration. And perhaps there’s been no greater initiative to try to help water utility managers in their day-to-day and future planning than the Effective Utility Management (EUM) Initiative.
Among water treatment industry professionals, consensus is growing that small- to medium-scale decentralized desalination and wastewater treatment plants are the way forward in a water-stressed future. But governments continue to announce new water mega-infrastructure projects at an alarming rate. Because the public policy debate appears to have simply not caught up with current technology, many companies and NGOs with a focus on small- to medium-scale water treatment or renewable energy have begun to see the Caribbean as something of a new frontier.
On the banks of Puget Sound and in the shadow of Mount Rainier exists Tacoma, Washington. The city is home to approximately 211,000 residents, making it the third largest in the state of Washington. Tacoma’s vision is one focused on stewardship and resiliency, as outlined the Environmental Services Department strategic plan: “We believe everything we do supports healthy neighborhoods and a thriving Puget Sound, leaving a better Tacoma for all.”
Too many dog owners think their pets’ waste easily breaks down in nature and is helpful to plants, so they leave it on the ground. The truth is that dog poo and other pet waste is loaded with germs such as e. coli and giardia that make people sick as well as nutrients that can fuel problematic algae blooms.
Lani Good, P.E., is an Asset Management Practice Leader. During her 5 years at West Yost Associates, she has specialized in Utility Asset Management. Her organization exclusively focuses on water, wastewater, and stormwater systems to ensure longevity for typical water infrastructure assets – pipes, pumps, storage and treatment plants.
Salvator Mundi sold for nearly half a billion dollars. Walter Isaacson’s latest biography is a breakaway hit. Management guru Michael Gelb’s book accessing the thought techniques of history’s most accomplished Renaissance Man — in every literal and figurative sense of the word — is still a bestseller. Almost 500 years after his death, Leonardo da Vinci is still a superstar.
Headlines in 2018 were dominated by the red tide along Florida’s Gulf Coast, which persisted for months, causing human respiratory illnesses, the deaths of dozens of Florida’s beloved dolphins and manatees, and hundreds of millions of dollars in lost tourism revenue and cleanup costs. Here are insights on how to forestall becoming the next city to make national headlines related to harmful algal blooms.
While municipalities have been working for several years to address per- and polyfluoroalkyl substances, commonly known as PFAS, a growing number of industrial operations are being prompted to treat their wastewater and stormwater for the contaminants. While any steps taken to reduce PFAS are positive, performing a thorough investigation before selecting a solution is critical to getting the best results at the lowest cost.
District Sales Engineer Andy Singer has spent enough time troubleshooting problems in the field that not much surprises him anymore. When it comes to dry barrel fire hydrants, though, he still gets a chuckle out of some of his more outrageous experiences. Here is his educational and entertaining take on the care and maintenance of fire hydrants, and ways to maximize a utility’s return on what potentially can be a 50+-year infrastructure investment.
For most of the United States, we’ve reached the time of year where Americans desire to maintain a perfectly green lawn starts to be tested by the warmer and dryer summer months. From the water industry’s perspective, it’s staggering just how many billions of gallons of treated water ends up being sprayed across our hallowed front and back yards in maintaining a full and aesthetically-pleasing lawn.
Many new health care technologies have advanced over the past decade to enable doctors to perform more procedures in their offices over hospital only settings. However, hysteroscopy — used to identify or treat problems of the uterus — has been slower to respond to this shift.