Warming weather can be a cause for concern at drinking water utilities around the country where summer temperatures mean the return of toxic algal blooms.
This month, Pennsylvania will begin sampling more than 350 public water systems in an effort mandated by the Department of Environmental Protection (DEP) to curb per- and polyfluoroalkyl substance (PFAS) contamination.
With nearly one in five New Jersey residents receiving tap water contaminated with per- and polyfluoroalkyl substances (PFAS), the local governor has ordered industrial polluters to help find a solution.
Increased treatment processes apparently haven’t been enough to curb levels of a potentially dangerous contaminant in a North Carolina water supply.
The presence of per- and polyfluoroalkyl substances (PFAS) in drinking water is creating concern among utilities, regulators, and consumers around the country. With little clear direction from federal lawmakers, some local agencies are stepping up to tackle the issue themselves.
Thanks to a manufacturing plant formerly operated in part by the U.S. Navy, a toxic plume is now approaching drinking water wells in Long Island. Fighting the problem will require a new water treatment facility costing millions of dollars.
After addressing the business, financial, and operating benefits of segregated ethylene spent caustic treatment in Water Recycling Efficiency In Ethylene Facilities Producing Spent Caustic, Part I: Cost, this conclusion to the story delves deeper into the process involved.
Water utilities with highly successful monitoring programs tend to share a common trait: they have a well-defined plan for calibration that emphasizes frequency and tracking. However, when done properly, this process is time-consuming and often leads to unnecessary labor and downtime. The good news is that advanced metering technology is available for plants to get a better handle on the instrument’s performance with significantly less effort.
Data analysis around pipe condition, inflow & infiltration (I&I), and overflows can build a case for the approval of infrastructure funding in budget planning.
Water and wastewater utilities rely on accurate flow measurement for important process controls. These may include recycle streams, chemical dosing systems, and other operational functions. In addition, regulators require utilities to measure certain flows, such as treatment plant influent and effluent and potable water pumping. Accurate flow measurement is also important for monitoring and reducing unaccounted-for water.
Water industry managers are caught in a squeeze. On one hand, they need to capture institutional knowledge from long-term baby boomer employees before they retire. At the same time, they need to manage current operations optimally and attract and train next-generation replacements. Here is how advanced analytics solutions are making it easier to achieve all those goals while improving business outcomes.
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.
BYOD is a topic often discussed in the context of electronic clinical outcome assessments (eCOA) but there has been limited use of BYOD in regulatory studies to date and common perception is that delay in uptake is due to measurement equivalence and technical and practical issues. In order to identify and assess the perceived barriers and challenges with the use of BYOD for eCOA, ICON in association with Medidata and mProve Health conducted a recent survey. Read how commonly-cited concerns around the use of patients’ own devices are not as great a deterrent to adoption as originally thought.
All the effort and expense required to produce high-quality water can be for naught if the distribution system cannot maintain appropriate pressure to deliver it efficiently, at a reliable flow rate. Simply pumping more pressure into the system is not the answer. Learn how new pressure monitoring options make it easier to track pressure in every zone to deliver customer satisfaction at peak energy efficiency.
A lot has changed over the past 15 years. Back in the early 2000s, many utilities weren’t interested in understanding what was in their water beyond the contaminant and disinfection byproduct levels they were regulated to comply with. But as Pat Whalen, President and CEO of LuminUltra, explains in this ACE 2018 Water Talk interview, a steady stream of ongoing education and the modern data storage and analytics that cloud computing provides, has developed some rabid fans eager to explore the microbiology of their water systems.
Potable reuse offers a massive opportunity to recover water from the wastewater process, but projects face a variety of barriers to getting off the ground. Most successful early adopters engaged early with their constituents and implemented smaller-scale demonstration projects that were accessible to the public to prove the technology and process.
The U.S. EPA is gearing up to limit perchlorate in public drinking water systems, so municipalities should start preparing to adopt the appropriate testing and treatment technologies. In a recent report, the agency identified several technologies as the best available to address the perchlorate problem.
When I attended the U.S. EPA-hosted PFAS Summit held at the Horsham, PA high school auditorium on July 25, 2018, the education I received from state and municipal leaders focusing on the local problem was more than just a professional briefing. It was ominously personal, due to the fact that the Water Online editorial office where I work and drink water every day is served by a utility sitting smack-dab in the middle of one of the most concentrated PFAS hotspots in the U.S.
Nick Burns, director of water treatment technology for (the Americas region of) Black & Veatch, discusses the health concerns, current regulatory status, and documented presence of perfluorinated compounds (PFCs), also sometimes called perfluoroalkyl substances (PFAS), in drinking water supplies — as determined by sampling under the U.S. EPA's Unregulated Contaminant Monitoring Rule 3 (UCMR3).
By now, just about everyone in the U.S. has heard about Flint, Michigan’s water woes. Despite the many issues raised by that incident, urban water systems are not the sole reason the 2017 Report Card from the American Society of Civil Engineers gives the U.S. drinking water infrastructure an overall “D” grade. Hidden within that disheartening rating are the harsh realities faced by rural water systems.
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?
Recently, Ohio Governor John Kasich issued an executive order allowing the Ohio Department of Agriculture to set requirements for storing, handling and applying manure as well as nutrient management plans in an effort to reduce nutrient pollution and algal bloom growth in Lake Erie. The order is set to affect 7,000 farms across 2 million acres.
World Water Day (Thursday, March 22nd this year) does a great job of focusing our attention on water issues. And especially with storms on the East Coast and drought in the West, not to mention the looming possibility that officials will have to shut off the taps in Cape Town sometime this summer, a lot of the messaging around water is pretty much like being smothered in a wet blanket.
As we celebrate Smart Irrigation Month, it's a great time to highlight not only smart technologies, but the smart people and smart decisions behind them. One remarkably smart tool that ties all three of those elements together is the Irrigation Consumer Bill of Rights by Dr. Charles Burt of the Irrigation Training and Research Center (ITRC) at the California Polytechnic State University (Cal Poly) in San Luis Obispo.
When drinking water leaves a treatment plant through giant pipes, with the help of huge pumps, the pressure can exceed 200 psi. The high pressure is a necessity because water must travel a long distance in some cases. Water towers scattered throughout the distribution system aid in the process so it can reach all utility customers. The problem is that not all distribution points in a water system are created equal.
Optical gas imaging with infrared cameras excels at detecting gas leaks, but some businesses that might find it useful are put off by the cost. Now a new generation of cameras that rely on uncooled detectors is bringing OGI to more users.
Industrial companies need reliable water treatment technology, since failure of a water system may result in downtime for production, with significant financial impacts. Ultraviolet (UV) technology is used for water treatment in various industries such as microelectronics, food & beverage, pharmaceuticals, and many other industry segments.
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.
Dealing with fine particulate matter, nutrients, and pathogens is essential for wastewater treatment plants (WWTPs) striving to meet Clean Water Act (CWA) effluent standards. Before that stage, however, come important considerations about removing larger debris that can clog pumps, overload clarifiers, or disrupt other downstream processes — especially during periods of elevated flow and debris loading.
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.
Spectrophotometry is a well-established analytical method, which has been used for decades in chemistry, physics, biochemistry, and chemical engineering for quantitative analyses.
Providing safe drinking water is a growing challenge. While methods for the disinfection of bacteria, protozoa and viruses in drinking water are well established, there are certain chemical contaminants of concern resistant to traditional water treatment methods which are being detected in drinking water, and many have the potential to impact public health.
Most industries are required to remove contaminants from wastewater systems before discharge to a receiving stream or municipal facility. Depending on the industry, contaminants may be numerous or difficult to treat. Finding the most effective, cost-efficient treatment method is critical for both business and the environment.
As with so many other drinking water treatment processes, corrosion control demands a delicate balance among multiple factors. From the water-purifying chlorine that increases corrosion risk, to alternative strategies that reduce corrosion — using either elevated pH or phosphates — keeping corrosion under control requires sound strategy and reliable execution. Here are several approaches to addressing those conditions, along with options for better, more effective corrosion control.
When validating the 1,000,000 data points that compose the typical Phase III trial, focusing on errors that don’t matter easily leads to wasted resources. Human Factor Analysis (HFA) uses uniquely structured datasets to reveal underlying behaviors and factors that are otherwise difficult for humans to sense or reconstruct, but ultimately are the root cause of an incident. Read how HFA can be incorporated into risk-based monitoring as a useful approach for protecting your clinical data.
Fluence’s first MABR plant in mainland U.S. gives California new medium- and small-scale treatment options that comply with the state’s stringent standards for water reuse
By using the 1.05 µm central wavelength, instrumentation companies are now developing systems to image deeper through the retina into the blood vessel layer (called the choroid) to diagnose eye diseases and monitor treatment.
In a slight change in topic, this is going to be a more general article around why I believe water treatment technologies are so critical. Why this Industry is so vital, and what depends on the new technologies that this industry generates. We do so much where I work that goes well beyond produced water recycling, and it is all extremely important.
The good news about extending water service connections is that they represent new revenue opportunities. The bad news is that they can be costly and disruptive in terms of having to shut down the system and open it up. Before planning new service connections or extensions, compare how the following characteristics of hot-tapping with fabricated tapping sleeves can save both time and money in the long run.