For years, harmful algal blooms (HABs) have posed a threat to drinking water across the country. And now, a tragic incident has illustrated that the problem can have an even more direct effect on our loved ones.
Late last week, the U.S. EPA sent a letter to officials in Newark, NJ, warning them that residents were exposed to dangerous levels of lead contamination in their drinking water and that the city’s efforts to mediate the crisis weren’t working.
Industrial and population growth continue to outpace the supply of freshwater resources in many regions of the world. The need for additional freshwater resources is driving the need for desalination. When combined with concerns regarding climate change and harmful impacts associated with fossil fuels, desalination powered by renewable energy should be considered as a necessary part of the solution.
San Francisco may be best known as a hotbed for the cultural changes of the 1960s and as a hub for some of today’s leading technologies. Now, it is bringing that cutting-edge reputation to bear in the water recycling space.
Following a fire at a major bourbon distillery in Kentucky this month, water treatment workers stepped up to keep a bad situation from becoming even worse.
Are your current pressure-boosting pumps the best design for your operating conditions? Are they maximizing value from your operating budget with peak efficiency? How can you know for sure, and what can you do if they are not? Here are some guidelines for evaluating performance efficiency in pressure-boosting applications and for choosing the best pump configurations for new or existing applications.
In water testing, readings that we believe to be reliable indicators are not always what they seem. Water that exhibits certain chemical or electrical characteristics at laboratory temperatures can provide entirely different readings in the field. Here is a quick review of what to look for in common water tests and why to consider automatic temperature compensation in the instruments used to collect them.
Rising temperatures and precipitation combined with increasing nutrient runoff from human activity are elevating challenges in water treatment efforts. In some cases, that means increased threats to drinking water quality. In others, it means increasingly stringent nutrient discharge levels. Either way, taking the nutrient monitoring battle out to the field can help in waging a better fight at the treatment plant.
The U.S. House has approved an amendment to the annual defense spending bill that would target per- and polyfluoroalkyl substances (PFAS).
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.
Everyone wants good-tasting water, but most water treatment plants (WTPs) are hostages to the composition of their local source water supplies. One of the components involved in taste is total dissolved solids (TDS), which can affect both the acceptability of finished water taste and its likelihood to corrode or clog pipes and fixtures. Here’s how to quantify the problem and what to do about it if it is excessive.
Several advancements in solar technology may provide the answer to drinking water production in distressed regions of the world.
For those in the drinking water and wastewater treatment space, the climbing temperatures in summer months can bring with them an obstacle that seems to get worse every year — harmful algal blooms.
Fresh water sources around the globe are becoming increasingly stressed due to population growth, industry use, and changing climate patterns. These stresses drive the need to make the most out of every drop of water available. Water treatment systems inherently produce a waste stream that contains contaminants removed during the treatment process. This waste stream can often constitute 20-30% of the total water fed to the treatment system, representing a significant loss of a precious resource both in human and economic terms. Minimizing this waste stream is a key part of the solution to solving the water crisis for both industry and people.
Operational savings realized through high-tech leak detection techniques could pay for your utility’s advanced leak detection equipment.
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.
Located on the eastern side of the San Francisco Bay, the East Bay Municipal Utility District (EBMUD) treats and distributes water to over 1.3 million customers in Alameda and Contra Costa counties.
The more a water utility knows about its current operations, the better equipped it can be to make more informed decisions about upcoming maintenance and capital replacement programs. Here are several key approaches to identifying cost-effective ways to make merging historical asset data and current operational data as the next step toward building a stronger, more resilient utility.
The key to high rate clarifiers such as inclined plate settlers is flow distribution says Tom Grubb, Regional Manager with Meurer Research. “Each inclined plate is like a miniature little sedimentation basin,” Grubb told Water Online in a recent Water Talk interview at AWWA’s ACE 2018. “To get good effluent quality, it’s critical that you have the same flow to each plate.”
Evoqua Water Technologies indirectly affects the water used by hundreds of millions of people around the world. It provides water purification and management solutions—filtrations, separation, disinfection, technologies, and service—used by 70 percent of US municipalities, 90 percent of the largest US chemical companies, 85 percent of pharmaceutical companies, the world’s largest food and beverage companies, and 60 percent of US Navy vessels.
I was having lunch with a former colleague a few months ago and the subject of produced water recycling came up. During the course of the conversation, he asked me: “Isn't this just a reverse Ponzi scheme with produced water? Ultimately, if they stop fracking, they [the operators] are going to have to deal with a lot of dirty water they don't need!”
Your success as an ISV is always related to how well the applications you develop meet the needs of your clients— but right now in retail, it’s absolutely crucial. Retail ISV growth depends on more than developing simple tools for merchants to use at the checkout or that allow them to accept payments made on a smartphone. Retailers need software solutions that meet the challenges of a rapidly changing, ultra-competitive industry. They need help in the fight to win customers and keep their loyalty. Retail ISV growth requires a deep understanding of the industry and the ability to develop applications that help retailers execute their business strategies.
Water and wastewater utility operators work diligently to operate within strict guidelines, ensuring their facilities are producing the best drinking water and highest quality effluent possible. Despite all their efforts, however, it can be easy to fall outside of regulatory compliance without even being aware. The key to avoiding problems like these is to understand how silent noncompliance can happen and knowing when to raise a red flag.
Aeration for industrial and municipal wastewater treatment involves more than simply moving volumes of air through a treatment basin. It really comes down to creating and sustaining an optimal oxygenated environment for microorganisms to convert oxygen consuming compounds into CO2 and water. Here are some key considerations for making better retrofit decisions about upgrading existing basin capacity and efficiency with jet aeration.
Determining whether a region has sufficient water to satisfy the needs of people who live there is a complicated and imperfect process. Our research team has developed a new approach to measure water scarcity by using satellites hundreds of miles in space.
When a municipality or business wants to reuse their wastewater, some applications require more treatment than others due to the quality of the wastewater. Many standard wastewater treatment systems consist of pretreatment, primary treatment, and secondary treatment stages. By the end of the secondary stage, a majority of the pollutants, solids, organics, inorganics, and metals have been removed or reduced. This is where reverse osmosis wastewater treatment can be utilized in a third stage process.
Wildfire is a natural part of many ecosystems, but recently these fires have become more severe, burning more acres and causing destruction in the western parts of the United States. Recently, U.S. EPA researchers have begun to look at the impact of these fires on our water supply, the natural resource we depend on for drinking, irrigation, fishing, and recreation.
With memories of the wettest U.S. spring on record still fresh, it seems strange to hear that in many parts of the nation, groundwater supplies — the water stored underneath our feet, in rocks, and sediments — are lower than normal. This includes places with wet climates, such as southern Georgia, coastal Maryland, and Cleveland.
A Q&A with scientist Jeff Urban, who explains forward osmosis and how Berkeley Lab is pushing the frontiers of this emerging technology
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.
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.
A global beverage company produces, markets, sells and distributes a variety of beverages including beer, malt, soft drinks, fruit juices and mineral water. The brewery has utilized several types of SITRANS F flowmeters from Siemens to regulate all aspects of the brewing process for more than a decade, including SITRANS F C Coriolis meters to monitor the sugar concentration in wort prior to fermentation.
Industrial operations across the gamut leverage boiler water, the liquid that passes through a boiler and is converted into steam, thus powering operations around the world. But not all of them do as much as they could to ensure peak boiler water efficiency. Through the proper treatment considerations and quality measurement knowledge, every industrial player can make the most of this central process.
Anritsu x-ray systems give food & pharma producers the best combination of contaminant detection, reliability and low total cost of ownership.
The business of water and wastewater is critical, but expertise in this area is finite — thus the trend towards outsourcing water operations, particularly in the industrial market. Whether it's securing and optimizing water use, running treatment equipment, sustainably releasing or reusing the water, capturing energy from it, or all of the above, it's often a wise business move to turn to experts. In this Water Talk interview, Miles Sherman, Regional Vice President of Services with Suez Water Technologies and Solutions, discusses the capabilities and benefits offered through this type of outsourcing, the various service models that exist, and the drivers that will continue to broaden the trend.
Material Discrimination X-ray (MDX) inspects all cartons of bone-in and boneless meats, on a single line, according to their unique specifications ensuring a safe product, maximized efficiency and product yield.
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.
This guide will help lab managers understand risks and best practices as they develop training for CO2 incubator users and establish a preventive maintenance program and setup criteria.
When you think about areas of the world where people have limited access to clean water, I’m guessing hot, sunny, arid climates come to mind. In an interesting twist, a couple of innovations are using those exact conditions to create potable water.