Following years of warnings from drinking water treatment institutions and source water quality advocates, it appears that the federal government is cracking down on potential per- and polyfluoroalkyl substances (PFAS) contamination.
More public and private resources than ever are being directed to protecting and preserving aquatic ecosystems and watersheds. Whether mandated for land development, farming, or in response to the growing severity and number of natural disasters, scientists from Drexel University found evidence that decades of watershed restoration and mitigation projects have taken place, but their impact is mostly perceived.
Oil-free blowers are an essential element of municipal and industrial wastewater treatment facilities, where they are utilized to power a variety of applications.
There are many different jobs related to tanks, but there are three types of jobs that can be considered together because they are related. These are the design, installation oversight, and "as-builts" design for both underground storage tanks (USTs) and above-ground storage tanks (ASTs). All three of these jobs, in the respective order above, should in reality be part of the same tank installation job.
A recent lead contamination crisis affecting the drinking water supply in New Jersey has garnered the attention of state lawmakers. And now even some of the country’s highest authorities have pledged to address it.
For municipal waterworks supervisors, keeping curb boxes in good working order is critical. But this job can become even more complicated by the prevalence of acidic soils across the U.S., which accelerates corrosion along with costly repair and replacement.
Reasons for changing water or wastewater asset management practices include unacceptable process downtime, statutory requirements for documenting infrastructure integrity, or the desire to refine process cost-effectiveness and maintenance-budget ROI. Here are examples of strategic approaches that can better match desirable asset management outcomes to the real needs of water utility operations.
A variety of research indicates that industry loses 3 percent to 5 percent (and in some cases more) of its productivity annually to unplanned shutdowns due to equipment failure. With all the data and connectivity available through today’s Industrial Internet of Things (IIoT) technology and SCADA systems, water and wastewater treatment operations can reduce those losses significantly…if management is willing to consider and adopt proven strategic approaches.
Every city facing infrastructure or operational challenges or concerns about maintaining quality of life in the face of population growth or a changing environment has benefits to gain from a unified smart-city approach. Here are some concepts for promoting understanding and acceptance among utility and government decision-makers, plus several examples of benefits already being garnered by smart cities large and small.
The cost of water delivered to customers is as much about the energy needed to move it as the chemicals required to treat it. Balancing water chemistry, infrastructure costs, and energy consumption is key to optimizing the overall cost of operation. Experience shows that some astute water suppliers are closer to achieving their ideal outcomes than most people realize. Here are some insights into how that works.
With a federal judge deciding it needs to do a better job to combat E. coli discharge into its waterways, Washington, D.C. could be turning to an unlikely ally in its struggle to clean up local rivers: mussels.
The documented performance of ion exchange (IX) resins for treating per- and polyfluoroalkyl substances (PFAS) offers new opportunities for more practical solutions in many applications. IX has demonstrated its ability to reduce both capital and operating costs compared to the conventional granular activated carbon (GAC) treatment approach.
For most water or wastewater system operators, engineers, and repair crews, the only thing worse than facing a 24”-main emergency repair is facing an even larger one. To those who have never performed an emergency line stop and bypass, the idea of completing repairs with no service outage, no long-term shutdown, and no ‘boil water’ notice is almost beyond belief. To those who have, it’s a sigh of relief.
Hurricane Dorian has left a trail of devastation over the last few days, but an onslaught of destructive floods have hit communities all across the country this summer. From small towns in the Midwest and Southeast to large cities like Washington and New York, torrential rains have inundated homes, cut power, and disrupted lives.
Wastewater treatment systems are all too familiar with the nation’s buried infrastructure problems — throughout the country, sewer systems have been neglected for decades to the point where the U.S. EPA estimates that $271 billion is needed to upgrade and maintain them in the near future.
The term “cellular” often calls to mind certain assumptions and limitations based on prior experience with consumer cellphone networks. Don’t confuse cellular-based Internet of Things (IoT) applications with past cellular experiences, though. The relatively new Long Term Evolution for Machines (LTE-M) standard represents a whole new ballgame. In short, “This is not your father’s cellular network.”
Your body is a machine. Like most machines, you have to properly maintain your body in order for it to function properly. Along with regular cleaning and checkups, you also have to be cognizant of what food you put into your body or else it won’t work at its maximum potential. An industrial reverse osmosis water treatment system actually works in quite a similar way.
A combination of culprits has water utilities spending more than necessary for production while failing to collect all the revenue that should be flowing in. Implementing solutions to water loss in a specific order is critical for municipalities to effectively get a handle on the problem. This systematic approach addresses issues in their order of impact and return on investment with simple, low-cost measures at the start that boost revenue.
The State of Florida is facing a problem shared worldwide at this time of year: a prevalence of toxic algae in source water brought on by the combination of warmer temperatures and nutrient runoff. So it’s worth paying attention to a potential fix being implemented in the Sunshine State.
Can you imagine the excitement and nervousness aerospace engineers must be experiencing when the countdown for rocket launch begins? "Three, two, one, blast off!" The next minutes, hours, and days test the team’s ability, experience, and knowledge put into the project. While this analogy may not be as applicable here, we environmental engineers also experience substantial enthusiasm and anxiety when water or wastewater projects enter the construction and commissioning phases.
Chemical dosing plays a pivotal role in water and wastewater treatment operations, so selecting the optimal feed system is critical to achieving quality goals and meeting permit requirements. With multiple technologies available, it is important to understand the benefits and downsides of each.
Denver Water and engineering partners resolve major water quality challenge in crucial South Platte River exchange reservoirs.
Constant monitoring of critical motors while de-energized prevents failures on startup, reduces unscheduled downtime, saves on major rewinding repairs and increases personnel safety
Fluctuations in pressure are the best indicator that a problem is brewing in a water distribution system, so monitoring pressure at strategic points can provide valuable insight about potential leaks. However, this isn’t as easy as it sounds. The good news is that technology is available to gather pressure data that can be used to enhance service and improve asset management without a large capital investment by utilities.
Addressing past due accounts traditionally means sending out a crew to turn off the water and then sending them back to restore service when the bill is paid. This can create a less-than-ideal situation by generating significant labor costs while having a potentially negative impact on vulnerable populations. Fortunately, there is a newer method available to address revenue capture while providing enhanced customer service by avoiding a turnoff.
In areas where water, infrastructure, and resources are scarce, a natural and novel solution has emerged — arriving out of thin air, so to speak.
The digital ecosystem continues to evolve, bringing more brainpower to “smart” technologies — and more efficient water treatment operations and asset management to utilities.
The lessons of Flint should be well heeded, and lead mitigation continued, but the big-picture story of lead exposures in the U.S. is a tale of tremendous progress.
With concerns over stormwater management escalating, green stormwater infrastructure (GSI) offers a multi-benefit, cost-effective solution.
Most utilities understand they have a nonrevenue water problem, but few know how to deal with it correctly. Start by learning more about how the issue affects your utility and what options are available.
The journey toward intelligent water can be expedited with eight key steps — a guideline for gliding through the Digital Water Adoption Curve.
Presidents and CEOs aren’t typically the types who get the “cool” label, or at least not in the James Dean sense. But when you rise through the ranks of your industry, challenge the status quo, protect everyday citizens, and ride a motorcycle, you have earned the distinction. This brief Q&A gives insight into the history, motivations, and aspirations of current AWWA President Jim Williams — a lifelong champion of the water industry … and a darn cool guy.
Using seawater desalination RO treatment systems, coastal communities and island nations can achieve clean and safe water. So why do some countries utilize this advanced treatment technology, while others do not?
Water. It’s vital to human life, our economy, and ecosystem - the very survival of our planet. But water challenges are growing more intense than ever before. Increasing volatile weather patterns fueled by climate change, crumbling infrastructure, pollution, and over population that is causing a surge in the demand for water. This means the world’s supply of clean water is rapidly declining putting our future at risk.
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.
The main component of mixed oxidant solution (MOS) is chlorine and its derivatives hypochlorite and hypochlorous acid (ClO−, HClO). It also contains trace amounts of other chlor-oxygen species which work synergistically with the hypochlorite/hypochlorous acid to improve efficacy and performance. MOS is made from brine (salt) and energy, and is used for disinfecting, sanitizing and reducing the risk of infection due to pathogenic microorganisms in water and in other applications. It is particularly useful for customers who have specific challenges such as controlling biofilm or reducing disinfection byproducts exacerbated by biofilms.
World Water Works inDENSE™ system increases process throughput and performance through the selection of dense sludge aggregates with improved settling rates and the promotion of enhanced biological phosphorus removal (EBPR).
Many public drinking water supplies contain fluoride, which is added by water systems to help prevent tooth decay in consumers. But a new study has called into question whether those health benefits are outweighed by potential health risks.
Brown and Caldwell, a leading environmental engineering and construction firm, recently announced Carey Allen has joined the firm as senior vice president and leader of its integrated project delivery (IPD) practice.
Montrose Environmental Group, Inc. (“Montrose”), a high-growth environmental services company, and Emerging Compounds Treatment Technologies, Inc. (“ECT2”), a global leader in cutting-edge solutions that mitigate the impact of emerging contaminants in air and water, recently announced they have entered into a definitive agreement under which Montrose has acquired ECT2 from its parent company, Haley & Aldrich, Inc.
Valicor Environmental Services (“Valicor”), one of North America’s largest providers of non-hazardous wastewater treatment services, has expanded its leading network of wastewater processing facilities through the acquisition of Strength Environmental (“Strength” or the “Company”).
On-site industrial wastewater treatment provider Axine Water Technologies has signed a multiyear service agreement with a leading pharmaceutical manufacturer to treat wastewater at their manufacturing plant located in the US Midwest.
Global leader of sustainable technologies, De Nora today announces the launch of its next generation of ClorTec® on-site sodium hypochlorite generators at WEFTEC, the Water Quality Event in Chicago this month. The new high efficiency ClorTec® Gen III system uses an optimized electrochlorination process that reduces salt and power consumption to deliver a 15 percent operating cost savings over the previous ClorTec® DN Gen II system that was launched last year at WEFTEC 2018.
Aqua-Aerobic Systems announces the release of the OxyStar® aspirating aerator to their portfolio of aeration and mixing products, which includes the Aqua-Jet® Surface Aerator, AquaDDM® Direct Drive Mixer, and OxyMix® Pure Oxygen Mixer.
Turner & Townsend director Tania Flasck shares insights and advice from her own experience ahead of British Water’s Women in Water event
Recently, the US Water Alliance, along with the City of Camden and a team of Camden leaders representing utilities, local nonprofits, and environmental organizations, released An Equitable Water Future: Camden.
The Water Council and its corporate partners recently announced the second Tech Challenge, a global competition designed to identify cutting-edge freshwater technologies and ideas with high potential for commercialization or implementation.
Recent drinking water lead contamination crises in Flint, Mich., and Newark, N.J. are raising concerns about the ability of traditional lead monitoring programs to measure the presence of all forms of lead; capture unpredictable changes in water quality that result in lead corrosion; and report the contamination risk before the water is delivered to the customer.
PowerTech Water, a developer of cleantech water treatment technologies, has received a $1.5M Series A round of funding to accelerate the commercialization of its CapCo Capacitive Coagulation modules and systems.
Yesterday, Environmental Protection Agency (EPA) Administrator Andrew Wheeler and Department of the Army Assistant Secretary of the Army for Civil Works R.D. James announced that the agencies are repealing a 2015 rule that impermissibly expanded the definition of “waters of the United States” (WOTUS) under the Clean Water Act.
Join us in Chicago, Sept. 21-25, to engage with water professionals from around the world, participate in prestigious programming, enhance your professional development skills, and discover innovative technology and solutions to the water sector’s most important issues. Register by July 12 to save.
Are you going to WEFTEC? Do you have a question about disinfection or filtration? Be sure to stop by Booth 1312 – you can book an appointment here and see a quick rundown of our can't-miss events here.
Jey Jeyapalan, Principal
Civic Enterprises, LLC
Visit the Water Intelligence Panel page.
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