Groundwater in Southeastern coastal Virginia is depleting due to over-drafting without intentional replenishment. This phenomenon makes the Potomac aquifer susceptible to saltwater intrusion as well as land subsidence, or the gradual settling or sudden sinking of the earth’s surface. The Hampton Roads Sanitation District responded to these issues by using groundwater augmentation as a way to recharge the aquifer, prevent saltwater intrusion, and potentially increase ground elevation.
Arsenic is a global environmental health issue. Since it was recognized in the nineties many techniques have been developed on the remediation on arsenic contaminated drinking water. Solving people’s exposure through drinking water to arsenic is, however, a complex problem.
Our environment is rife with testimonials to the law of unintended consequences. When it comes to water treatment, the compound 1,2,3-trichloropropane (TCP) is the latest surprise making its way through the remediation lifecycle.
It’s the call no water treatment plant superintendent wants to receive, especially not while on vacation. Andy McClure, Superintendent of Toledo, Ohio’s Collins Park Water Treatment Plant, answered his phone to hear his head of operations report that the level of microcystin in the finished water was high, caused by a large harmful algal bloom (HAB) that was impacting the plant’s Lake Erie intake.
The Mazzei Sidestream Venturi Injection – Pipeline Flash Reactor System provides a feasible alternative for dissolution of ozone at the Clark County Water Reclamation District (CCWRD) in Las Vegas, because it allowed for flexibility in basin design to meet geographic site constraints.
Cincinnati-based MadTree Brewing Company is serious about how they make their beer. Their scientific approach means that they also pay close attention to the water they use, a message they’re more than happy to share.
Malta is an archipelago of three islands situated in the Mediterranean Sea, around fifty miles south of Sicily. There are no rivers of any significance on the islands, and the sparse annual rainfall is only about 500 mm. In order to bridge the gap between supply and demand, Malta has long ago started desalination of seawater. The technologies were initially based on evaporation. In 1981 the Government decided to invest in RO desalination capacity.
Flushing contact lenses is contributing to water pollution because lenses do not break down entirely in wastewater treatment systems, according to a new study.
In spite of the recent abundance of water, many of California’s aquifers continue to balance on the edge of water scarcity. Decades of overpumping have reduced the amount of ground water available to supplement surface water resources diminished by drought. The Pure Water Monterey Ground Water Replenishment Project (Monterey Pure), addressed the need to replenish a local aquifer, by piloting Advanced Water Treatment (AWT) processes, to determine the best method to convert secondary wastewater into a pure water resource.
Thousands of Florida residents joined together for a demonstration on Sunday conveying a commitment to clean water.
As a result of Fluence’s reuse solution, this fish processing company has zeroed its water footprint, reducing water consumption to the point that the company no longer needs to buy water, but instead produces a surplus available for irrigation, reuse, or reintroduction into the environment.
During the dry days of the California drought, one Silicon Valley city banned development because officials were unsure there would be enough water for projects.
Vermont is bulking up its drinking water for PFAS by adding three substances to the warning.
As demand on water resources rises, will there be a mad rush to grab up the nation’s last untapped water resources?
Talk about making waves. Cryptocurrency — digital “tokens” or “coins” rooted in computer code and valued for the very fact that they are disconnected from governments and banks — have experienced spectacular rises and falls in recent months. The crypto-economy is already worth hundreds of billions of dollars (REAL dollars!), and it’s anyone’s guess how fast it will grow after that.
Over the past 10 years, DC Water has become the harbinger of the modern water utility. It’s often unconventional approach to tackling age-old problems usually elicits one of two responses from other utility professionals. The first response is one of resignation — if only I had the budget that size permits, I’d be able to do similar things. And the second is one of awe — there’s no way I have the amount of gumption to convince regulators or customers that I have a better way.
Blair Brettmann, Ph.D., assistant professor in Georgia Tech’s School of Materials Science and Engineering, discusses the current state of continuous manufacturing in the pharmaceutical industry, her group’s research into electrospinning and other novel approaches, and how to overcome the challenges to further adoption of continuous processes.
Sevierville, Tennessee is the hometown of internationally known entertainer Dolly Parton and is a popular gateway to the Great Smoky Mountains National Park. Located in Eastern Tennessee, the city has a population of 16,500 residents and is visited by 16 million tourists per year.
Threatened by water scarcity due to severe drought, Reserva Conchal turned to Fluence’s Nirobox for a sustainable, reliable, and cost-effective seawater desalination solution.
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.
Do you view field service strategically? Leading organizations recognize that service is a great differentiator — stellar field service can be the path to setting your company apart, creating new revenue streams, and driving profits. These organizations are focusing on initiatives such as migrating from break-fix work to outcomes-based service models, better understanding and delivering on customer expectations, and embracing the need to continually improve operations by developing its people, processes, and technology use.
Easton Suburban Water Authority (ESWA) is in the business of providing water to its customers, not managing technology. One summer, Technology Manager Tim Ryan had enough with focusing valuable time and resources on the utility’s Advanced Metering Infrastructure (AMI) IT network and servers.
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.
Water utilities are installing automated meter reading (AMR) and advanced metering infrastructure (AMI) systems more frequently. These systems often help utilities improve customer relations and provide valuable real-time data to improve operations. The ability for various meters to communicate with AMR and AMI technology has become more important as these systems become commonplace.
When it becomes necessary to expand or blend water supply sources, variety is not necessarily the spice of life. Whether new water sources are surface water or groundwater, fresh, brackish, seawater, or water recovered from aquifer storage, they can ultimately impact water treatment plant (WTP) operations and finished water quality — including compliance with the U.S. EPA Lead and Copper Rule.
EPA recently validated an innovative new technology to guide the cleanup of soils contaminated with arsenic and lead. The new laboratory method, based on a “virtual stomach” that mimics human digestion, estimates the bioavailability of arsenic and lead in soils quickly and inexpensively relative to animal models. This method will increase the accuracy of Human Health Risk Assessments, potentially reducing remediation costs.
Just when we thought the jurisdictional and regulatory issues concerning the federal Clean Water Act and the resulting implications could not get more complicated, recent developments have put that possibility to rest.
In 2014, São Paulo nearly ran out of water. Schools closed, crops faltered and reservoirs were left at a tiny 5 percent of their capacity for the city and its surrounding population of 22 million. It was the worst drought in eight decades.
If your customer base is among the 140 million people who depend upon groundwater for drinking water, irrigation, or agriculture, it is important to know whether you can expect the quality of your source water today to be the same tomorrow. Fortunately, a recent update to the first-of-its-kind assessment of trends in groundwater supply has been announced by the U.S. Geological Survey (USGS) to help you identify emerging problems. The results are detailed in an informative and easy-to-use interactive map.
Reverse osmosis (RO) has become a widely utilized treatment process for diverse applications such as medical and laboratory research, desalination, and treatment of industrial wastewater and municipal water/wastewater. Because of its widespread use and technically advanced nature, a variety of quality parameters should be monitored by those treatment operators who utilize it.
When Park City Water in Utah needed a new system for supervisory control and data acquisition (SCADA) and human-machine interface (HMI), it picked the same solution chosen by its neighbor, Mountain Regional Water (MRW) District. Both MRW and Park City have seen significant improvements since switching from their previous SCADA systems to Ignition. MRW saves more than $400,000 per year on energy with greater control from Ignition. Park City saves the equivalent of one full-time employee by using Ignition to automate its reports to a state agency.
Clients must set appropriate goals before hiring consultants to ensure the project is completed as efficiently and effectively as possible despite the potential obstacles that can obstruct the path of focus. This article will focus on five essential steps to set appropriate goals for a successful client/consultant relationship
When the plant team at a large semiconductor manufacturer in the northwestern region of the U.S. found its boilers were consuming an unusually large quantity of natural gas, the numbers simply didn’t add up. Something mysterious was going on with the boilers, which incorrectly showed gas consumption above plant permit levels, and this situation would eventually cause regulatory reporting problems later on.
In 2016 Hillsborough County Public Utilities, a forward thinking organization, initiated the first direct potable reuse pilot project in Florida. In its efforts to utilize 100 percent of its reclaimed water, the progressive utility created a successful program to effectively suspend surface water discharges. The pilot project validated direct potable reuse, which is now a key initiative for many central Florida utilities due to the implementation of the Central Florida Water Initiative requiring the additional utilization of reuse water resources.
Water utility managers have a lot of responsibilities, not the least of which is to keep up with the latest in the industry—contaminants, regulations, technology, and trends. And perfluorinated compounds (PFCs) are on the horizon as contaminants that may affect the public health. Water Online spoke with Calgon Carbon about these important emerging contaminants and how best to remove them.
Despite evidence that often points to the contrary, many bodies of water around the country stand as prime examples of how environmental quality can be improved with the proper will and effort.
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.
As a means of encouraging the growth of new technologies and improving operating costs, water and wastewater equipment manufacturers have long advocated for changing the mindset of equipment procurement from low-bid to lowest life-cycle cost evaluation.This have proven to be a very daunting task.
This quick-reference user guide, for engineers and designers, talks about the guidelines and limitations for rapid injection molding. Learn how to get the best possible results for your real plastic molded parts.