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.
The first blood tests results were released since water contamination in the Philadelphia suburbs came to light, and they provide a glimpse at potential health effects for residents.
In the Louisiana community of Enterprise, tap water is so unappealing that one woman drives 20 miles each way to do her laundry in another town, according to CNN.
Irrigation water used by farmers appears to be making people sick.
Data analysis around pipe condition, inflow & infiltration (I&I), and overflows can build a case for the approval of infrastructure funding in budget planning.
Without an appropriate control strategy, even the best wastewater treatment plant (WWTP) equipment can struggle to deliver maximum efficiency. Because energy costs represent up to 60 percent of WWTP plant operating expense, air distribution designs and changing loading (biochemical/biological oxygen demand [BOD]/chemical oxygen demand [COD], ammonia) demands require control strategies designed to adapt to all eventualities efficiently. The following checklists, plus important Do’s and Don’ts, can help in identifying an underperforming control strategy and developing a better one.
There’s a lot to be said for the old adage, “Use the right tool for the job.” When it comes to flow meters for municipal or industrial water treatment plant (WTP) and wastewater treatment plant (WWTP) operations, however, the sheer number of choices can be overwhelming. That is where using a process of elimination to winnow out styles that don’t fit the performance criteria of an application can make it easier to compare the few remaining options. Here is a checklist of considerations to accelerate that process.
“We have too much data” is the refrain we continually hear from water utilities. It’s no surprise that managing data from multiple sources and turning it into business insights presents a daunting challenge; however, data influx does not have to be a burden. When managed well, there’s no such thing as too much data, especially if your business is implementing a big data strategy — a topic that has implications and reach beyond the scope of this paper.
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.
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
Big Data is more than a marketing buzzword. It’s become an essential tool for helping utility operators prioritize capital investments, manage network assets, and provide a higher level of service to customers.
Utility managers are continually challenged to run water systems in the most efficient manner. Reducing non-revenue water (NRW) is an important component for system efficiency. In many states, regulators are placing caps on NRW or requiring reductions in the amount of NRW. Accurate and well-planned flow measurement can be used to locate areas of water leakage and reduce NRW.
Jennifer Aquino, Chief Operating Officer at Cenduit recently had the opportunity to visit with several clients and opinion leaders on a year-end “listening tour,” to discuss their issues and goals for 2019 and beyond. Read what they had to say regarding the industry’s challenges and opportunities.
How do we act on the data of previous 483s? What do we do with that data? Similar to the annual product reviews, we gather data on FDA observations, make graphs, and then … file it away. But there is an alternative.
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?
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.
In the Semiconductor industry, raw water is treated in two steps; the first treatment is used to produce “make-up water” and the second phase involves turning make-up water into ultrapure water. This ultrapure water is then used for the final rinsing of fabricated wafers.
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.
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.
Proficiency Testing (PT) is the name used by the International Standards Organization for a procedure also known as “inter-laboratory study” or “external quality assessment” or “ring test”. Proficiency testing, in simple terms, comprises a sample sent to a group of laboratories for measurement. The labs know what might be in the sample, but they don’t know exactly what is there or the concentration. Their results are compared with the known or true value and the lab is assigned a “Z” score to show how closely their result came to the target.
Traditionally when it comes to analysis, there have been two ways to measure pH. The first is the inexpensive method of using test strips, which requires little time or training. The second requires the use of a pH electrode or probe and because it requires more training, time, and equipment, is far more expensive. However, a hybrid application is now available that brings together the ease of use of test strips with technology to ensure preciseness.
The advanced oxidation process removes contaminants in water and wastewater by oxidation through reactions with highly reactive hydroxyl radicals (.OH). This chemical process uses ozone (O3), hydrogen peroxide (H2O2), and/or UV light.
Are “ghost forests” a sign of things to come? Rising sea levels and superstorm tidal surges are already impacting coastal areas, with rising salinity levels affecting some drinking water sources. Coastal water utilities are not the only ones that have to worry about salinity, however, as high concentrations of winter storm road treatments, gas drilling, and mining can also generate elevated salinity levels in surface water sources.
Cookie and biscuit manufacturers face many challenges to provide the highest quality products and it is vital that they implement effective food safety programs to overcome these issues, safeguard their brand reputation and prevent customer complaints.
You may have read recently that Orange County Water District (OCWD) and Orange County Sanitation District (OCSD) set a Guinness World Record for the most wastewater recycled to drinking water in 24 hours. The record attempt kicked off on February 15th 2018 to mark the 10th anniversary since the districts’ Groundwater Replenishment System was launched and culminated with more than 100 million gallons per day (MGD) being produced.
This paper will examine foreign object detection in adulteration events, including the detection challenges of finding very small contaminants, in a complex and fast-moving, global supply chain.
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 X3735 x-ray system is a high detection sensitivity solution, with an integrated conveyor designed to inspect tall, rigid packaged products in a wide range of applications.
A potable water plant in Eastern Angelina County, Texas, serves over 2,000 rural customers.
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.
Non-revenue water (NRW) and, in particular, water loss through leakage has become an increasing priority focus for water utilities around the world. With failure rates of aging infrastructure increasing and growing water stress due to population growth and climate change, reducing the loss of essential water resources is paramount. Leak monitoring and detection systems from Trimble Water help water utilities proactively identify and reduce NRW and water loss, prevent service outages, and prioritize infrastructure repairs. Easy-to-use wireless and mobile leak detection solutions provide clear, accurate, real-time insights into the condition of the water network beyond the treatment plant. Paired with Trimble’s intuitive cloud-based GIS software, Trimble’s solutions make it simple for water professionals to visualize, manage, and analyze data from the field and use that knowledge to improve productivity and network performance.
In this sixth installment on the selection and use of quality improvement tools in your organization, Ben Locwin wraps up the series with a treatise on the 7 Tools of Quality.
Our planet continues to become increasingly more crowded. Pollution and waste are showing irreversible impact on a global scale, and it has become necessary to come up with solutions in all industries. It is widely known, though perhaps not publicly thought of, that the process of purifying water creates waste. As we remove the minerals and impurities from water, we inherently condense those impurities into a smaller body of water. This waste affects the environment in various adverse ways. The solution lies in a concept known as Zero Liquid Discharge (ZLD).