• Dangerous Waters In A Changing World
    Dangerous Waters In A Changing World

    Americans and Canadians got a peek into the future when the City of Toledo shut its drinking water taps in 2014, issuing a do-not-drink order on the municipal water supplies serving 500,000 people. Levels of microcystin, a potent liver toxin produced by blue-green algae, were more than double the World Health Organization's safe limit. More than 700 square miles of the Lake Erie surface was covered by a harmful algal bloom (HAB), and drinking water plants couldn't remove the algal cells and the toxins they produced.

  • Plastic Flow Meters Reduce Weight, Space, Corrosion — Not Accuracy
    Plastic Flow Meters Reduce Weight, Space, Corrosion — Not Accuracy

    There are a variety of reasons for wanting accurate flow metering — e.g., billing purposes, precise proportioning of chemical injections, and other process flow decisions. That is why highly accurate mag meters are so popular in many applications. Now, new lightweight, corrosion-resistant mag meters provide the same advantages as plastic piping for harsh environments and flows that cover all the bases…and acids.

  • A New Era In Blower Control Efficiency
    A New Era In Blower Control Efficiency

    A common misconception among wastewater plant managers is that pressure-based blower controls remain an industry “best practice” for aeration. The problem is this approach was developed during an age when most blowers were constant speed machines with outputs that could only be governed by the manipulation of inlet valve position or header pressure. Newer self-tuning, airflow-based control systems save energy, improve effluent, and reduce greenhouse gas emissions.

  • Keys To Tackling Industrial PFAS Treatment
    Keys To Tackling Industrial PFAS Treatment

    While municipalities have been working for several years to address per- and polyfluoroalkyl substances, commonly known as PFAS, a growing number of industrial operations are being prompted to treat their wastewater and stormwater for the contaminants. While any steps taken to reduce PFAS are positive, performing a thorough investigation before selecting a solution is critical to getting the best results at the lowest cost.

  • Navigating The Partial-Pipe Flow Challenge
    Navigating The Partial-Pipe Flow Challenge

    One of the most perplexing challenges that wastewater plant operators face is the need to measure the various sources of influent. For closed-pipe systems, the use of traditional flow devices requires intensive and expensive engineering to keep the pipe full at the point of measurement. The good news is that there is an emerging solution that measures flow in a less-than-full pipe.

  • Grundfos’ Commitment To Sustainability Helps Team Win Prize For Water Innovation Challenge
    Grundfos’ Commitment To Sustainability Helps Team Win Prize For Water Innovation Challenge

    Once you know Grundfos, you realize the company’s commitment to promoting sustainability is genuine. The global leader in pumps spearheads programs worldwide to help promote the efficient and sustainable use of water and energy.

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Getting A Better Handle On Sludge Getting A Better Handle On Sludge

If you're seeking innovation, take a few moments to hear Daniel Dair, VP of Innovation at World Water Works, describe the inDENSE process. The result of a research project first launched five years ago, the process increases clarifier settleability at conventional activated sludge treatment plants, with configurations that can also address biological phosphorus removal. Dair reports sludge volume index (SVI) improvements of almost 50 percent at some facilities, as well as increased clarifier loading rates and better management of solids retention time (SRT) and mixed liquor concentrations. Learn more in this video overview.

A New Option For Situational Blower Needs A New Option For Situational Blower Needs

Long known for serving the wastewater industry with blower and compressor solutions, Aerzen recently branched out to expand its service capabilities with Aerzen Rental USA. With this new, standalone company, Aerzen can now provide its low-pressure, oil-free units for short-term and/or immediate use. In this video, Matt Piedmonte, director for Aerzen Rental USA, cites five situations where a customer might need a rental, and answers some common questions around technology, logistics, and setup/operation. Hint: The company had a head start in mastering these elements, as Aerzen International Rental has been serving Europe for two decades.

A Tradition Of Advanced Disinfection Continues (Video) A Tradition Of Advanced Disinfection Continues (Video)

Trojan Technologies has been providing treatment solutions for the water/wastewater market for four decades, but 2018 stands out as the year Stephen Bell joined as its new president. Water Online had opportunity to catch up with Bell at WEFTEC, where he talked about the company's culture, philosophy, and drive to innovate. One particular innovation is the TrojanUVFlex, a drinking water disinfection and advanced oxidation system for both potable and non-potable reuse applications, as well as the destruction of chemicals such as 1,4-dioxane. Tune in for an introduction to Bell and a summary of Trojan's unique technology.

Turning Data Into Water Intelligence Turning Data Into Water Intelligence

Collecting data isn't particularly hard, but extracting value from it can be. Many water operations are awash with sensors, instruments, and software, but fail to get actionable insight due to data streams that are unreliable, nonintegrated, or lack analysis. Hach helps utilities and industries make sense of data through Claros, a water intelligence system that provides efficiency, cost savings, and security by collecting and interpreting data and give clear direction for operators. In this video, Sam Utley, Software Application Development Manager for Hach, describes the Claros system's capabilities and how they can be leveraged to overcome pressing water challenges.

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Approaches to stormwater have improved dramatically. This free collection of articles provides detailed examples of successful and sustainable solutions that water and wastewater quality managers may be able to adopt to address their own stormwater dilemma.

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Severn Trent Services, Inc.: Water and Wastewater Treatment Solutions

At De Nora Water Technologies we make water treatment easy. That’s why we offer a range of innovative treatment technologies used the world over, to help protect and preserve the world’s most precious resource. Learn more.


The UV Advanced Oxidation Process (UV AOP) is when ultraviolet light, alone or in combination with an oxidant, destroys chemical contaminants in water. If you have a problem contaminant that cannot easily be removed with processes like microfiltration, granular activated carbon or reverse osmosis, then UV AOP might just be the ideal solution. Learn more.


Providing expert insight into the most important topics in the water and wastewater industry.

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    Lead Exposure
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    Digital Transformation
    Non-Revenue Water
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    Emerging Contaminants
    CWA Regulation
    IoT/Cloud Capabilities
    Source Water Issues
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    Combined Sewer Overflows
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