Residents of an Iowa town were told not to drink their tap water this month when dangerous levels of manganese were found in the supply. And most concerning may be the fact that nobody seems sure how long the contamination has been affecting residents.
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.
Lead contamination in drinking water, caused by corroded service lines that introduce the constituent after water has been treated but before it reaches consumers, continues to plague cities around the country.
In a sign of just how problematic aging water infrastructure still is for major cities around the country, a National Resources Defense Council (NRDC) spokesperson described lead levels in Newark’s drinking water as “jaw-dropping” and “knock-your-socks-off high.”
Entering its fourth week and now the longest in the country’s history, the partial government shutdown is affecting a wide range of federal employees and agencies. Naturally, water and wastewater treatment operations are no exception.
In a sign of just how significant water quality concerns are in Michigan, the state’s governor elect signed an executive directive related to the issue as her first such move in office.
Advanced metering infrastructure (AMI) has received a lot of attention in recent years, typically regarding customer account billing. Other AMI uses within water distribution networks, however, can play equally important roles in reducing non-revenue water (NRW). Consider these contributions of networked flow meter use for automating better insights into water distribution efficiency.
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.
Beyond Independence Day or Veterans Day, it's always a great time to thank our nation's veterans for their service and reflect on the sacrifices they and their families have made on our behalf. This year, it's also a great time to add a plea — and an opportunity — for further service in the defense of our country: to take the skills they learned in the military and apply them to the water industry.
According to the AWWA’s 2019 State of the Water Industry report, anticipated workforce changes are among the top ten issues facing water and wastewater utilities. How can you make sure the next wave of workers are up to speed quickly on operational processes and procedures? Having a central repository of data – both real-time and historical – helps to ensure that institutional knowledge remains intact as a new generation of water professionals enter the industry.
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.
Title 22 of California’s Water Recycling Criteria is among the strictest water treatment standards for water recycling and reuse in the United States. Fluence’s MABR demonstration plant was installed at the Codiga Resource Recovery Center (CR2C) in Stanford, California, in January 2018 for the purpose of third-party evaluation. The testing parameters included criteria to evaluate reliable enhanced nutrient removal in the form of Total Nitrogen, which is increasingly important across the United States and difficult and costly to achieve through conventional wastewater treatment.
Unexplored and emerging markets are an attractive prospect for biopharma companies looking to expand. But when it comes to ensuring success, what’s the wisest way to invest?
Ever since the introduction of centralized water treatment and distribution systems, leaks have been the bane of their existence. Finding a way to make reliable repairs rapidly and without having to disrupt service goes a long way toward satisfying customer and utility concerns. Here are some strategies and tips for making the right choices easier, quicker, and less expensive, even in the midst of an emergency.
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.
Water is becoming more complex for industry. Its cost as a component of production is on the rise, and greater regulatory scrutiny continues to expand post-process wastewater treatment. Against a backdrop of growing water scarcity, industrial leaders are focusing more time and energy into leveraging water acquisition and usage to their competitive advantage. The days when access to water was taken for granted are over. In fact, by 2030 global water demand is projected to exceed available water by 40 percent.
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?
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.
Sampling and laboratory testing are major responsibilities for water professionals. Test results are used for process control, and ultimately to determine that water is safe for drinking, reuse, or discharge to the environment. Regulatory agencies rely on reported results for proof of permit compliance. So, obtaining representative, properly collected and preserved samples is the first critical step to ensure accurate test results.
One of the great turnaround stories in the history of our nation’s water bodies is that of the Chesapeake Bay. Since 1976 when the Environmental Protection Agency (U.S. EPA) first undertook a comprehensive study of the Bay, efforts to address excessive nitrogen and phosphorous degradation of water quality have steadily improved the Bay’s complex ecosystem.
Surprise objects in food, and the anger and fear they create, can turn into viral news faster than you can say “recall!” Here are five considerations when upgrading from metal detection to X-Ray inspection.
The water industry has made progress in developing numerical values for screen-capture ratings under specific conditions. One such example is the UK Water Industry Research (UK WIR) standard. Its methodology is sound in measuring capture rate for a specific screen in a channel for a specific time and set of conditions. However, the measurements provided in these studies cannot be assumed to represent the performance of that screen in any other wastewater treatment plant or even in the same channel in a different time or season.
X-ray inspection of beef jerky presents many, and often unforeseen, challenges. This application note provides guidance to overcome those challenges to produce high-quality beef jerky.
Changing climate and other environmental conditions are intensifying the frequency and severity of harmful algal blooms (HABs). Here are important guidelines to understanding HAB causes and impacts to potable water treatment plants — including dealing with the algal biomass, remnants of decaying algal cells, and especially the secondary metabolites that the algae produce, such as taste and odor compounds and toxins.
Anritsu x-ray systems give food & pharma producers the best combination of contaminant detection, reliability and low total cost of ownership.
Open channels are an efficient way to feed wastewater treatment facilities but pose a challenge because the flow rate can be difficult to measure with traditional devices. Until recently, radar level measurement devices have been cost-prohibitive for most municipalities. Newer advancements, however, have brought the cost down significantly, so it is now feasible for wastewater plant managers to consider adopting the technology for open-channel applications.
Iron, manganese, arsenic and hydrogen sulfide are indigenous to numerous groundwater aquifers. With the exception of arsenic, these constituents are more prevalent in deeper aquifers that are devoid of dissolved oxygen. This report summarizes the results and conclusions of a groundwater treatment pilot test program. This pilot test program was undertaken to determine the removal performance for arsenic, manganese and iron at the City of Merced’s Well 20 site. Chemical treatment processes required were also studied.
The Leopold Type 360 Underdrain uses a modular lateral design to simplify installation. Unique hold-down brackets secure the laterals and enable service to individual underdrains through its innovative bolt down system.
Several advancements in solar technology may provide the answer to drinking water production in distressed regions of the world.
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).
The purpose of source water monitoring is to enable drinking water treatment facilities to identify changes in water quality, implement treatment strategies based on the characteristics of the water, optimize the treatment processes, and take preventative actions to protect the source water from intentional and accidental contamination.
Nature has long provided guidance to simple and sustainable ways to manage environmental challenges. Biological treatment of potable water is no exception. As more water is required to support human activity worldwide, sources once considered too contaminated or expensive to treat are quickly becoming necessary options. For groundwater contaminant removal, once again, the laws of nature point the way.
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.
A growing number of wastewater treatment plants are banking on biogas from their sludge as a supplemental power source. Unfortunately, biogas is notoriously difficult to quantify. Ultrasonic flow meters specifically designed for biogas applications can provide a solution that addresses many of the issues created by traditional technology.
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.