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?
Flanders pioneers the internet of Water, a unique intelligent water management system based on a network of connected sensors, that enables a permanent and real time follow-up of water quality and water quantity. This internet of Water will enable Flanders to tackle the growing threat of water inconvenience, water scarcity and water pollution.
Two businesses are being sued by the U.S. Attorney’s office for allegedly contaminating drinking water on Long Island.
Eastern Municipal Water District (EMWD) serves about 142,000 customers in Riverside County, CA. The EMWD service area is one of the largest for any water district in arid southern California. On the drinking water side, EMWD manages two water treatment plants and over 15 reservoirs. With 70% of the district’s water coming from the Metropolitan Water District with chloramine disinfection, EMWD has become reliant on chloramine disinfection to manage long transmission lines and longer detention times.
The city of Newark is being sued over what an environmental group calls “dangerously high” lead levels in tap water.
Wastewater from breweries is creating pollution problems in Lake Champlain.
A new report from the U.S. Geological Survey (USGS) spells out water use trends in the U.S. It is the 14th in a series of reports on U.S. water use, published every five years.
A fish flour and fish oil processing company produces 100 tons of flour a day from fish waste resulting from the broth concentration plant and from drying of flour, washing water, boiler blowdown and cooling towers. The company needed to treat its wastewater and to reduce its water supply costs.
In March, the Pentagon provided its most comprehensive report to date on the scope water contamination caused by military bases.
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
Recycled water may bring new life to a languishing river in the Southwest.
Potable reuse of wastewater has gone by many different names, some of them unflattering, like “toilet to tap.” Despite the clear benefits of water reuse, this so-called “ick factor” has slowed the adoption of technology that can transform wastewater into drinking water.
A federal agency has released a long-awaited report suggesting that perfluorinated compounds (PFCs) are more dangerous to human health than federal standards currently take into account.
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.
Population health is a primary concern of water utilities, whether water demands are typical (daily demands) or an out-of-the ordinary event occurs and threatens the continuous, safe supply of potable water. Water utilities must be prepared to respond to emergencies before they occur, and this is where hydraulic modeling can be particularly useful.
Recently, the United Nations held a conference in Morocco related to climate change issues. The location of the conference had significant meaning because Africa has become a bellwether for the rest of the world when it comes to climate change. Desertification and rising sea levels both impact countries all over that continent.
By recognizing the limitations of today’s production processes, the industry may be able to overcome the challenges, complexity, and high cost of manufacturing vaccines and viral vector-based therapies.
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.
Amid the AIDS epidemic during the late 80’s, Dr Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, found himself at a crossroads. As a long-time proponent of the traditional “research to approval” drug development model, involving randomized clinical trials and lengthy regulatory reviews, Fauci was faced with the realization that this traditional approach would be of little benefit to AIDS patients without the luxury of time. Something had to be done. But what?
Angelo Mazzei has always thought locally and acted globally. Born and raised in California’s San Joaquin Valley — one of the world’s most productive farming regions — Angelo worked for his uncle’s 10,000-acre farming operation after graduating from college. There he saw a pressing need for a system that would allow farmers to safely and efficiently inject fertilizer into their irrigation water — a task made even more challenging with the 1968 introduction of high-pressure water supplies through the California Aqueduct, a 400-mile-long water conveyance system. A new approach was vital.
Now that you have returned to the role of private citizen — though, admittedly you are a private citizen with millions of eyes focused on you — I want to encourage you to continue your great work promoting the health of our nation’s children. Your emphasis on exercise and nutrition, jobs and support for veterans, and education have touched millions of Americans of all ages and all backgrounds. Now it’s time to bring in the most common denominator and the first step toward good health — access to clean water.
After analyzing annual water loss audits for the city of Dallas, GA, the team discovered significant issues around non-revenue water. In 2014, real and apparent water loss accounted for 31.3 million gallons — nearly 20 percent of the city’s total water supplied for the year — which meant lost revenue for the city.
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.
First Sensor’s X series of photodiodes is utilized to detect alpha, beta, gamma, and X-ray radiation either directly through the absorption in the crystal lattice or indirectly through the measurement of the luminescence radiation of a scintillation crystal. The series features optimized silicon PIN photodiodes that form wide, fully depleted space-charge regions to guarantee maximum radiation absorption, even at low reverse voltages.
The Reliant Water Technologies SCOUT Hydro Profiling System is the answer to obtaining clear and concise shallow water survey data quickly and inexpensively. By not only providing a visual hydrographic ‘picture’ of everything underwater, in any shallow body of water, the SCOUT also provides the volume of sludge in the water body (as well as the volume of free water). The ‘picture’ provided is color enhanced in order to provide clear, definitive delineation of variable depths of sludge, or debris, and includes multi-point water depth over-lays.
Reduced operational costs and downtime through seamless distributed control system integration.
The PR 6241 range of load cells is specially designed for weighing small and medium sized process vessels and for high-precision dosing. The unique design principle, in combination with the FlexLock-installation kits, makes it possible to counterbalance movements arising from mechanical or thermal expansion or contraction of the vessel or its supporting construction.
Load cell construction
S-shape design with integrated load return. Full stainless steel construction, hermetically sealed, welded, filled with inert gas.
Material
Load cell: 1.4542 (DIN 17440) similar to S604, S622 (B.S.), 17 - 4PH
Protection
IP 68, IEC 529 (equivalent to NEMA 6). The load cell can be submerged in water to a depth of 1.5m for 10,000 hours. Robust, flexible, screened; Sheath: TPE Thermopl. Elastomere, Colour: grey (EX: blue); Diameter: 5 mm, wires 4 x 0.35 mm2; Length: 5 m
Bending radius
Fixed installation: ≥ 50mm; Flexible installation: ≥ 150mm
The Aqua-Jet® SS-PW surface mechanical aerator, manufactured by Aqua-Aerobic Systems is certified to NSF/ANSI 61 by UL for use in potable water applications. These units can be utilized for THM stripping applications or circulation in potable water treatment systems and reservoirs with a minimum volume of 100,000 gallons.
Evoqua's Xpress™ MBR from the DAVCO™ line is a compact, pre-designed, skid-mounted system providing easy installation for the treatment of applications ranging from 5,000 gallons per day (gpd) to 200,000 gpd.
EPA scientists are developing and evaluating new methods to evaluate chemicals for potential health effects. These methods are fast, cost effective, and reduce our reliance on traditional methods which use laboratory animals.
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.
Sorting through practical, legal, and environmental considerations related to Michigan House Bills 5752 and 5753 — proposed oversight for onsite wastewater treatment systems
The past few months have been highly eventful for California water watchers. In June, by a margin of 57 to 43 percent, California voters approved Proposition 68, a $4.1 billion parks and water bond that will provide approximately $1.3 billion for water-related projects across the state. Then in July, the California Water Commission approved $2.6 billion of funds authorized by Proposition 1, passed by the voters in 2014, to be used for eight new water storage projects. These developments reflect that California is taking a bold and multi-pronged approach to addressing its water needs, investing both in new large infrastructure projects and in more modest projects to improve the state’s existing resources and assets.
EPA scientists are leading a multi-phase project to evaluate the ability of non-targeted analysis laboratory methods to consistently and correctly identify unknown chemicals in samples. EPA’s Non-Targeted Analysis Collaborative Trial (ENTACT) was formed in late 2015 and includes nearly 30 academic, government, and industry groups. Non-targeted analysis involves analyzing water, soil and other types of samples to identify unknown chemicals that may be present, without having a preconceived idea of what chemicals may be in the samples.
The 34 MGD Otay Water Treatment Plant in San Diego, California serves a population of approximately 200,000. It is a conventional treatment plant that uses coagulation, flocculation, sedimentation, filtration and disinfection. The plant receives raw water from two different sources — imported water from the Colorado River and runoff water from three local reservoirs.
If production equipment fails, manufacturers face unplanned downtime, reduced output, and lost revenues. This article explains how preventive maintenance reduces the risk of unplanned downtime.
In the 1990s, the City of Wichita, KS, developed a water supply plan that included creating a sustainable water supply through the year 2050. The key component of the plan is recharging the large aquifer that lies under the region with 100 MGD of water from the Little Arkansas River.
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.
Are you confused about how to incorporate technology into FSMA compliance? If so, you are not alone. This article offer suggestions on how to apply technology at your plant to comply with FSMA.
This article is intended to highlight inconsistencies in testing elastomer vial stoppers — and to drive the collaborative development of a more sensitive, harmonized particle count method.
The Golden State Water Company selected WRT’s Z-92® Uranium Removal treatment system to reduce high concentrations of uranium in a single treatment system for three wells located in the Morongo Valley of California. Since installation of the Z-92® Uranium Removal treatment system in Morongo del Sur in 2013, the uranium levels are being reduced to levels below the Maximum Contaminant Level (MCL).
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.
There is little doubt about the importance of taking turbidity readings as part of drinking water treatment. However, there are certain misperceptions about the associated requirements and procedures needed to confirm the validity of those readings. The major points of confusion seem to revolve around perception of the terms “approved,” “calibration,” and “validation.” Here is a quick synopsis on what you really need to know about meeting U.S. EPA Method 180.1: Determination of Turbidity by Nephelometry for accurate turbidity readings.
IPR'S CIPP liner system for gravity-flow sewers and culverts is the most proven, cost-effective trenchless pipeline rehabilitation system in the industry. It is also the most widely specified form of trenchless pipeline rehabilitation.
Discover how integrated membrane system designs can maximize the operating stability of EDI systems and reduce mixed bed regeneration frequency.
