The need for a solid cyber security strategy has been discussed and debated for almost a half a century now, and yet the basic worm-type attacks first documented back in 1972 are still with us today. Why? Because even the most basic measures to protect control systems from these types of attacks are still not systematically employed.
Maintaining a firm grip on blower output within digesters at wastewater treatment plants is the key to stable dissolved oxygen levels that support an optimal biological cycle. However, the most common type of device used to measure aeration in the activated sludge process — thermal dispersion flow meters — is not always the best fit. The good news is that wastewater plant operators have multiple alternatives.
Aqua Pennsylvania (Aqua PA), an Aqua America subsidiary, serves more than 1.4 million people in 32 counties across Pennsylvania. Aqua PA has significant experience using chloramine chemistry to mitigate trihalomethane (THM) disinfection byproduct formation in its many distribution systems.
With virtually no local water sources available for use, the City of San Diego relies on water from the Metropolitan Water District, which imports its water from the Colorado River and the California State Water Project. The two massive water projects bring water from other watersheds and regions hundreds of miles to the north and east.
In 2008 Texas was facing an extended drought and the City of San Angelo was weighing its alternatives. The City felt the Hickory Aquifer well field was the best water option available, but this water contained significant amounts of radium and iron.
The Basin Creek Reservoir in Butte, MT served its community with pristine water from both sides of the Continental Divide for nearly 100 years. In 2010, a pine beetle infestation killed most of the trees surrounding the reservoir, many of which fell into the water, increasing the natural organic matter (NOM) level.
Cooling towers and boilers consume the most fresh water in the industry, with industrial process waters carrying the balance. Power plants and refineries use more water volume for the cooling process than any other area of the facility. Mining and food and beverage industries consume higher volumes for their processes. Clean water may come from a range of sources, including clarified surface waters, groundwater or properly treated wastewater (reuse) sources.
While aeration and digester wastewater treatment systems are fundamentally different, they share common challenges when it comes to accurate air/gas flow measurement. Flow meters need to operate over a wide flow range, fluctuating from very high to low rates. The fluid media can be benign, moist, dirty or corrosive and combustible under the right conditions.
The patent pending Channel Monster FLEX consists of a FLEX Grinder and a Solids Diverter with perforated screen connected by a FLEX Frame. The Channel Monster FLEX continues the Channel Monster legacy of high flow capacity while capturing and shredding rags, rocks, wood, and other solids into small pieces to pass harmlessly through pumps, pipes, and process equipment.
The City of Rushville, Indiana had to remedy a consent order filed in 2007 for its untreated combined sewer overflow (CSO) discharges that were polluting the Flatrock River, a violation of the Clean Water Act. The city originally planned to install a 1 MGD stormwater storage tank, but was approached by Aqua-Aerobic representatives with a pilot test proposal utilizing a new technology.
With nearly one in five New Jersey residents receiving tap water contaminated with per- and polyfluoroalkyl substances (PFAS), the local governor has ordered industrial polluters to help find a solution.
Most distribution system water-quality problems can relate back to microorganisms growing as biofilms in the pipes. These biofilms can prompt chlorine residual degradation, corrosion, nitrification, THM formation, red or black water, and taste and odor problems as well as other issues. An effective microbiological control strategy combines the appropriate testing technologies and their use at optimal intervals.
The U.S. EPA has a new Risk Resilience Assessment (RRA) and Emergency Response Plan (ERP) compliance deadline coming for water systems across America. These key plans are set to come due in 2020 and 2021 with varying deadlines as per the size of the utility’s service areas. This article will give you tips to be ready for the EPA deadlines.
Communities around the country had been unknowingly ingesting per- and polyfluoroalkyl substances (PFAS) for years as the compounds leaked into drinking water sources and evaded treatment.
A lack of real-time monitoring capabilities for treated water once it leaves the plant has many utilities scrambling to manage nitrification, which can appear abruptly and then be difficult to contain. Fortunately, advanced testing tools are available so water plant operators can take a proactive approach to the hazardous condition in their distribution systems.
Aerzen Canada is in a growth and expansion mode. The company celebrated the opening of a brand new, 26,000 square foot building with office space and a production facility.
In a potential indictment of the bottled water industry and the lofty promises it makes about its product, a recent lawsuit is accusing Poland Spring of lying to consumers.
Lead is one of the most pressing challenges communities face in protecting public health in the face of aging water infrastructure. Clear and without taste or odor when dissolved, lead in drinking water poses major health risks, especially for growing families. Ingestion by small children can cause permanent brain damage, resulting in lower intelligence and medical problems for the rest of their lives.
It has been said that the unseen and untreated can break down any system — this phrase could not be more accurate than in the world of wastewater treatment when considering the infiltration of grit into a system. Infiltration happens in the collection system, whether it’s from living on the coast, aging infrastructure or just plain old build up over time.
For many applications, water should be free — or nearly free — of organic compounds. In drinking water, the impact is optimal taste, appearance, and safety. While the problem of organics finding their way into source water continues to grow, newer monitoring technology is making it easier for water treatment plants to rapidly detect the substances and apply the appropriate fix.
Power plants and refineries around the world must manage and treat complex effluent waste streams from the Flue Gas Desulfurization (FGD) process. Flue gas is generated by the combustion process of fossil and fossil-derived fuels, such as coal, oils, and natural gas in power plants. Petrochemical refineries may generate flue gas from a number of different processes, including Catalytic Cracking, Steam Methane Reforming, and Heaters or Furnaces.
In an effort to promote the importance and benefits of tap water, the Philadelphia Water Department will pay local residents to serve as ambassadors.
Many invasive species are found along U.S. coasts, including fishes, crabs, mollusks, and marsh grasses. Since the general opinion is that invasives are harmful, land managers and communities spend a lot of time and resources attempting to remove them. Often this happens before much is known about their actual effects, either good or bad.
Source water monitoring is commonly viewed as a sophisticated and expensive task requiring extensive labor and high-tech equipment. Budget-minded municipal water authorities therefore tend to see it as unnecessary unless there’s a significant, imminent threat to source water quality. However, there are low-cost — in many cases, no-cost — methods to monitor source water to determine if looming issues warrant extra attention.
ABB provides an extensive selection of proven measurement and analytical products and solutions for power generation industry applications.
Following multiple health scares in recent months, California’s produce industry will be taking some new water treatment steps.
A multi-million dollar water treatment facility renovation in Texas has drawn interest from the federal government. And not for its impact on clean drinking water.
Business people love to talk about "disruption." They pride themselves on eating their competitors' lunch. Where their markets used to be about raving fans, now it's about inspiring craving fans, fueled by "hunger marketing" and the fear of missing out. There's a lot of dog-eat-dog philosophy...which is why it's important for companies to be willing to cannibalize their own technologies.
Climate change is unfolding right before our very eyes. And for Denver Water it is serious business. Experts in Colorado point to rising temperatures, earlier spring runoff and extreme fire behavior as powerful evidence for climate shifts resulting from the buildup of greenhouse gases tied to power generation, tailpipe emissions and a wide array of additional human activities over decades.
Traditional processes used to remove iron and manganese from groundwater have commonly included oxidation with chlorine followed by a filter with sand or other media.
Wastewater treatment facilities have emerged as a promising option to increase resource efficiency and sustainability — converting effluent into reusable drinking water and harvesting natural fuel along the way. Now, power utilities in California want to make the most of this potential for their customers.
Running under the lights and sounds of the Las Vegas Strip are miles and miles of water pipelines. Managing and maintaining the main supply of water to this area is a Rate of Flow Control Station (ROFCS) operated by the Southern Nevada Water Authority (SNWA). This ROFCS alone has the ability to deliver up to 180 million gallons of water a day.
In a slight change in topic, this is going to be a more general article around why I believe water treatment technologies are so critical. Why this Industry is so vital, and what depends on the new technologies that this industry generates. We do so much where I work that goes well beyond produced water recycling, and it is all extremely important.
Properly evaluating each of the three turbo blower technologies — air foil bearing, magnetic bearing, and geared turbo — is key to choosing the best solution for a wastewater plant.
The prevalence of per- and polyfluoroalklyl substances (PFAS) in drinking water sources around the country has the attention of consumers and regulators. And in Pennsylvania, it’s top of mind for the military as well.
The U.S. EPA has released details about a “Water Reuse Action Plan” meant to encourage water recycling through facilitated discussions between federal and state stakeholders and the treatment sector.
Of the many challenges faced by the wastewater treatment industry today, perhaps none are more acute than the threat of “brain drain” — the loss of institutional knowledge that comes from one generation of wastewater professionals retiring without enough of a workforce entering the field to replace it. While there are a number of potential solutions to this problem being explored, two neighboring Ohio communities believe it may all come down to wages and education.
The new machines will allow larger municipal wastewater plants to use air foil bearing blower technology despite the size limitations on single units.
SmartCover Systems has announced UnderCover 2 making use of advanced micro-electromechanical systems (MEMS) technology for intrusion detection and unauthorized opening of sewer manholes to combat illegal dumping, vandalism, and other security issues. MEMS technology improves the robustness of entry detection and expands the configurability of the systems at remote and hard-to-access locations for utilities, communications, nuclear facilities, border security, transportation infrastructure, military installations and others.
A strong economy and a clean environment go hand in hand. That's why the Government of Canada is supporting the development of technologies that lead to less pollution, healthier communities and the creation of well-paying middle-class jobs.
De Nora, a global leader in electrochemical technologies and the world’s largest provider of electrodes, coatings and complete solutions for electrochemical water and wastewater treatment systems, announces the issuance of the first IECEx and ATEX Hazardous Area Certification for a complete packaged sewage treatment system including an electrical panel, the latest generation OMNIPURE™ Series 64 G2 Ex marine and offshore Sewage Treatment Plant (STP) equipment.
Endress+Hauser launches its Proline Promag W 300/500. Promag W 300 is the new compact version with multiple I/Os, while the existing remote version, Promag W 500, is now available as a digital remote transmitter. The digital remote transmitter allows a maximum connecting cable length of up to 300 m (1,000 ft).
Ovivo Inc. ("Ovivo"), a global provider of water and wastewater treatment equipment, technology and systems, is pleased to announce the acquisition of Westech Industrial Inc., doing business as Varec Biogas ("Varec Biogas"), a wholly-owned subsidiary of Westech Industrial Ltd.
Demand for membranes in the water treatment market is forecast to advance 5.8% per year to $8.3 billion in 2023.
Recently, the U.S. Environmental Protection Agency (EPA) released a Request for Proposal (RFP) for the Navajo Area Abandoned Mines Response and Construction Services (AMRCS) contract.
Global investment firm, The Carlyle Group and Schneider Electric SE, the leader in the digital transformation of energy management and automation, recently announced the enhancement of their partnership to develop new and innovative infrastructure projects.
The greater Las Vegas region is now on the cutting edge of household leak detection and water monitoring technologies, thanks to a new rebate program provided by the Southern Nevada Water Authority.
A number of advanced pumps offered by Watson-Marlow Fluid Technology Group (WMFTG) have been certified to the NSF/ANSI 61 standard, a move that provides further assurance for water industry companies seeking safe and accurate chemical metering.
Innovyze, the global leader in water infrastructure data analytics software, has recently joined forces with SWAN, the Smart Water Networks Forum, to focus on the Digital Twin concept and its application to global water utility strategies.
An international team of researchers has carried out the first systematic global review of water reallocation from rural to urban regions – the practice of transferring water from rural areas to cities to meet demand from growing urban populations.
Water Online invites you to attend the upcoming SWAN 9th Annual Conference, May 15-16, at the Hyatt Regency Miami. This smart water event will feature over 30 global utility speakers covering operational resilience, cybersecurity, AI for wastewater, digital transformation, workforce changes, and more. View the agenda and register at https://www.swan-2019.com/
Mueller Water Products has a long history of trust and leadership in the American flow control industry spanning more than a Century. Today, more than 150 years after its founding, it remains the only full-line supplier of flow control products used in distribution systems for municipal potable water and natural gas.
Patrick Clifford, Regional Global Practice Manager
Burns & McDonnell
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