A long-gestating lawsuit between Minnesota and the conglomerate 3M over perfluorinated compound (PFC) contamination now appears ready to move forward.
Scientists want to see more coordination across communities when it comes to policymaking and research into perfluorinated compounds (PFCs).
No wastewater-related topic draws passion from two opposed sides quite like the process of hydraulic fracturing, or “fracking,” and whether or not it poses a danger to drinking water quality.
Few rules governing the nation’s water quality have been politicized to the extent of the Waters of the United States (WOTUS) rule, seen by one side as necessary for protecting the environment and by another as government overreach that hurts the economy.
The city of Chicago took a stand against local water pollution when Mayor Rahm Emanuel threatened legal action against the United States Steel Corporation, one of the world’s largest steel producers, last week.
Unfortunately, the practice of discharging untreated or partially-treated sewage is all too common for wastewater treatment plants. But a recent instance in Florida has caught the attention of state watchdogs.
In the oil and gas industry, operations are only as good as what they can measure. When it’s time to move product from one place to another, accurate custody transfer measurement is paramount. Without a precise account of what’s been delivered, operations cannot accurately charge for their services and this can have major financial implications.
For years, I’ve been standing on my deck in San Francisco, looking south to Silicon Valley for innovation in water efficiency. But I’m starting to realize that I might have been gazing in the wrong direction. Maybe I need to turn around and look north, over the spires of the Golden Gate Bridge, toward the Emerald Triangle in Humboldt, Mendocino and Trinity counties, the hotbed of California’s newly legalized commercial cannabis production.
Daryl Weatherup, Director of Marketing for Evoqua’s Wallace & Tiernan brand, recently sat down with Water Online Radio to discuss disinfection management, residuals, dosing, disinfection byproducts (DBPs), chlorination and the latest technological advancements being announced at ACE16, including Evoqua’s acquisition of UV disinfection provider Neptune Benson.
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.
With increasing pressure on water resources, efficient and reliable wastewater treatment systems are crucial. Plants are searching for solutions that offer a smaller footprint and higher quality effluent. Over the last 15 years, membrane bioreactors (MBRs) have become increasingly common in both municipal and industrial wastewater treatment plants and help mitigate against effluent suspended solid issues. These systems combine a membrane filter with an activated sludge process where microorganisms are able to thrive and break down contaminants.
This new smart, interconnected wastewater pumping system from Xylem’s Flygt brand senses the operating conditions of its environment, adapts its performance in real time and provides feedback to pumping station operators.
More than 6,800 cubic yards of structural concrete are being used in the construction of a new Trickling Filter and Trickling Filter Pump Station in Bismarck, North Dakota. These structures are being built well below the area’s water table, and the more than 6,800 cubic yards of concrete will protect them against the effects of Mother Nature.
The real MVP in professional football? Water.
More long-term data is available than ever before to help wastewater designers and engineers make accurate estimates of up-front costs and life-cycle costs associated with pressure sewer systems. In addition, incorporating extended equipment warranties into project evaluations, specifications, and contract documents is a pivotal tool to help decision makers reveal the true, long-term equipment costs of various sewer system technologies.
To increase capacity within the existing footprint of a wastewater treatment facility in Michigan, two existing tanks were converted to aeration tanks with pure-oxygen aeration provided by Praxair’s In-Situ Oxygenation (I-SOTM) System.
The legislative body responsible for ensuring that the federal government remains accountable has recently issued a report on the nation’s lead contamination problem. Its recommendations may be what finally save the country’s drinking water.
Everyone must answer to someone — even the rule-makers themselves. While it may seem to water and wastewater utilities that the U.S. EPA is the end of the line, there is yet another government agency that holds the EPA's feet to the fire.
The U.S. EPA has a job to do despite having its financial and human resources trimmed by the new presidential administration. Three U.S. EPA Office of Water directors, presenting at the 2017 Water & Wastewater Equipment Manufacturers Association (WWEMA) Washington Forum, laid out action plans for addressing the nation's most pressing water-quality threats in a manner that can (or must) achieve results efficiently.
The U.S. EPA has updated its sampling guidance for determining and fighting against unknown contaminants in drinking water. Here’s why routine preparation can be a utility’s best friend in case of emergency.
Arizona is taking steps to allow for direct potable reuse throughout the drought-plagued state. With the practice legalized for wide use, its popularity around the world may rise.
We all hope that the Flint Water Crisis – where cost-cutting measures led to the drinking water supply to become severely tainted with lead – was an isolated incident. However, it is not impossible that a similar event could happen again, especially in a similarly desperate city with limited financial resources. Here are a few key points that should be considered to avoid repeating such a tragedy.
Water is the lifeblood of electrical power plants, whether they are water-cooled steam plants or turbine-spinning hydroelectric installations. Regardless of how the facility generates electricity, there is a growing awareness that each power plant is part of its own, unique industrial watershed — drawing water from the environment, altering its contents and temperature, releasing some to the atmosphere as steam, and returning the rest to receiving waters.
Chemical, petrochemical, and oil-reﬁning plants are process-intensive operations with regulatory requirements to protect the surrounding water and air from the effects of industrial pollution. These external demands are matched by equally compelling internal pressures to address product puriﬁcation needs, ﬁnd alternatives to utilizing costly fresh water in production processes, reduce the carbon footprint, and operate efficiently and proﬁtably.
High levels of radionuclides (uranium/radium/etc.) in drinking water aren’t very common, but they are very dangerous. If you’ve long dealt with radionuclides, you’re familiar with the treatment requirements — but are you treating as cost effectively as possible?
When Flint Michigan discontinued purchasing water from the Detroit Water Authority and began using the Flint River as their raw water source they unfortunately did not consider the potential impact on lead and copper corrosion and the impact on the public.
There have been many publications lately that claim universal appeal of the ORP sensors and their applicability across the board. This concerns me, because the authors sometimes forget to mention some well-known practical limitations of the method, let alone the realities of water treatment applications potentially influencing the sensor performance.
At the end of The Big Short, a postscript stated that one of the story's protagonists, Dr. Michael Burry (played by Christian Bale), was now focused on investing in only one commodity: water. That got my attention.