Members of an Amish community in Minnesota believe wastewater systems will interfere with their prospects on the Day of Judgment, and they are fighting against treatment regulations imposed by the state and the county.
Existing desalination systems may have a new competitor: the graphene-based sieve.
For some time, California has been struggling to control a probable human carcinogen called 1,2,3-trichloropropane (TCP) in its drinking water.
Prompted by an industrial malfunction, the Chicago Department of Water Management (CDWM) located an elevated level of hexavalent chromium in Lake Michigan during recent water testing.
Springfield, CT, is having significant problems when it comes to its sewage system. It pumps large amounts of pollution into the Connecticut River, which in turn sends it flowing south through the state and into the Long Island Sound.
Earlier this month, a strange substance started growing out of the wastewater treatment plant in Butte, MT. The slime-like material forced the county to send 550,000 gallons of partially treated wastewater into Silver Bow Creek.
U.S. District Magistrate Judge Martin Carlson of the Middle District of Pennsylvania reversed a $4.24 million award late last month which had been given to families who claimed that their water supply was polluted.
Released earlier this month, a report assembled by the Clean Water Fund asserts that drinking water in Oklahoma is at risk of contamination from oil and gas wastewater wells, though others claim the report is based on faulty data.
The Naval Air Station (NAS) Meridian, near Meridian, MS, is requesting permission from some of its neighbors to test drinking water wells for chemical contamination this month.
Are the Great Lakes the best hope for water security in the perennially parched Southwest?
Water utilities are advocating for the federal government to retain the U.S. EPA’s signature water conservation program despite proposed budget cuts from President Trump.
Is Senator Ted Cruz paving the way for invasive species to storm water sources in Texas?
U.S. EPA Administrator Scott Pruitt signed an order that denied a petition attempting to ban the pesticide chlorpyrifos, commonly used in U.S. agriculture.
For some time now, West Virginia lawmakers have been working toward legislation that could allow more toxic discharge into their waterways.
Collectively in the municipal wastewater treatment industry there exists a tremendous knowledge base. Among those who are actively engaging in the trade, a resource of innovative skill sets is potentially accessible through many of the individuals’ experiences and discoveries. The challenge is: How can these people work together effectively to benefit from this state-of-the-art resource?
Air/gas mass flow meters find a variety of applications in many of today’s large urban water treatment plants, both clean water and wastewater. From measuring disinfection gases to controlling air or gas flow in digesters and aeration systems, the proper application, installation and operation of mass flow meters improves process efficiency as well as end product quality while at the same time reducing plant operating costs
Election season is in full swing and while it may not be the “hottest” topic being debated amongst presidential candidates, the topic of water isn’t being ignored as we approach November. Several candidates have addressed the challenges plaguing water and wastewater systems nationwide.
A plant manager in Colorado became frustrated by the consistently short filtration run-times and the large amount of water wasted by the four dual-cell bottom filters used to clean the region’s drinking water. Xylem’s Leopold Type XA underdrain with I.M.S 200 media retainer, new filter media (12” silica sand/18” anthracite), and wash troughs, emerged as the top choice.
The City of Bloomington’s water purification plant has been operating since 1929. The lime-treated water has high pH which can cause scaling and can eventually clog the piping and filters in the plant. So, the plant needs to re-carbonate the water thereby lowering and stabilizing the pH. CO2 is an effective and safe chemical that offers treatment flexibility for a utility doing pH control.
The advanced ST75 Air/Gas Flow Meter from Fluid Components International (FCI), which measures fuel gas, process gas, inert gas, waste gases and air in small line sizes, is ideal for optimizing the fuel-to-air ratio for plant burner-boiler control, reducing plant fuel costs while protecting the environment.
The district manager for the Pinetop-Lakeside Sanitary District (AZ) reports that a special gas chlorination system, featuring unique components and controls, and manufacturer-supplied service, has effectively replaced a chlorine tablet system.
The water treatment plant at the client’s site was designed not only to meet low level discharge requirements for overall environmental compliance but also to meet the regional discharge levels of the Great Lakes Restoration Initiative (GLRI). This initiative included strict discharge limits of mercury at 1.3 parts per trillion.
As interest in biogas grows, more attention is being paid to measuring biogas flow, which has long been a problem area in process measuring technology.
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 mobile filtration technology offers water treatment operations a chance to combat the runoff and solids brought in by seasonal ice melt.
We’re entering the home stretch of the 85th Session of the Texas Legislature.
California is home to some of the world’s most creative minds, top universities, productive farmland, groundbreaking industries — and one of the most epic droughts. The state has endured five years of drained reservoirs and groundwater reserves tapped so aggressively that the land subsidence caused by pumping has been literally seen from space. This indicates in no uncertain terms that it’s time to get all hands on deck. Private companies, universities, irrigation and drainage districts, municipalities — it’s time to pull together into public-private partnerships to address water challenges that face California and so many other regions of the world.
The Gold King Mine disaster foretells what’s in store for the mine sites tagged by Superfund during the 1980s — that still aren’t finished. This is a plan for the U.S. EPA to stay out of this business and address this Western dilemma without federal funding or lawsuits.
By harvesting heating, ventilation, and air conditioning (HVAC) condensate, industrial operations can take advantage of a cool, convenient source of clean water.
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.
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.
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.
For water treatment operators and utility officials, the summer months don’t just mean sunshine, pool parties, and barbecues. The season also brings the peak time for algal blooms, the toxic clouds formed in surface water thanks to increased nutrient contamination and rising temperatures. With rising instances of toxic algae around the country and increased regulations for eliminating it, utilities have had to keep pace.
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.
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.
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.
The U.S. EPA’s Long Term 2 Enhanced Surface Water Treatment Rule (LT2) was adopted in 2006 to modify the Safe Drinking Water Act and more tightly control the spread of Cryptosporidium, a microorganism that can cause gastrointestinal infection if ingested. Since its inception, the rule has posed a treatment challenge to utilities that are susceptible to the tiny contaminant. But which utilities are at risk? And how should they approach treatment?
When is the last time you took a moment to stop, and smell your water? A continuous supply of clean and safe drinking water is something that most people take for granted. We rarely go to the tap doubting that the water will be clean and safe. Recently, the general population and water supply professionals have become concerned about the safety and protection of our drinking water supplies.