• PFAS Manufacturers Grilled By Congress
    PFAS Manufacturers Grilled By Congress

    Following years of warnings from drinking water treatment institutions and source water quality advocates, it appears that the federal government is cracking down on potential per- and polyfluoroalkyl substances (PFAS) contamination.

  • Are We Really Protecting Rivers And Streams From Pollution? It’s Hard To Say, And That’s A Problem
    Are We Really Protecting Rivers And Streams From Pollution? It’s Hard To Say, And That’s A Problem

    More public and private resources than ever are being directed to protecting and preserving aquatic ecosystems and watersheds. Whether mandated for land development, farming, or in response to the growing severity and number of natural disasters, scientists from Drexel University found evidence that decades of watershed restoration and mitigation projects have taken place, but their impact is mostly perceived.

  • Low-Pressure Blowers In Wastewater Treatment Applications
    Low-Pressure Blowers In Wastewater Treatment Applications

    Oil-free blowers are an essential element of municipal and industrial wastewater treatment facilities, where they are utilized to power a variety of applications.

  • Tips For Cost-Efficient Tank Installation
    Tips For Cost-Efficient Tank Installation

    There are many different jobs related to tanks, but there are three types of jobs that can be considered together because they are related. These are the design, installation oversight, and "as-builts" design for both underground storage tanks (USTs) and above-ground storage tanks (ASTs). All three of these jobs, in the respective order above, should in reality be part of the same tank installation job.

  • Newark’s Lead Contamination Prompts State And Federal Commitments
    Newark’s Lead Contamination Prompts State And Federal Commitments

    A recent lead contamination crisis affecting the drinking water supply in New Jersey has garnered the attention of state lawmakers. And now even some of the country’s highest authorities have pledged to address it.

  • Speedy Repair Or Replacement Of Curb Boxes Damaged By Acidic Soil
    Speedy Repair Or Replacement Of Curb Boxes Damaged By Acidic Soil

    For municipal waterworks supervisors, keeping curb boxes in good working order is critical.  But this job can become even more complicated by the prevalence of acidic soils across the U.S., which accelerates corrosion along with costly repair and replacement.

  • Capitalizing On A New Mindset For Asset Management
    Capitalizing On A New Mindset For Asset Management

    Reasons for changing water or wastewater asset management practices include unacceptable process downtime, statutory requirements for documenting infrastructure integrity, or the desire to refine process cost-effectiveness and maintenance-budget ROI. Here are examples of strategic approaches that can better match desirable asset management outcomes to the real needs of water utility operations.

  • Plotting The Quickest Route To Better Asset Maintenance
    Plotting The Quickest Route To Better Asset Maintenance

    A variety of research indicates that industry loses 3 percent to 5 percent (and in some cases more) of its productivity annually to unplanned shutdowns due to equipment failure. With all the data and connectivity available through today’s Industrial Internet of Things (IIoT) technology and SCADA systems, water and wastewater treatment operations can reduce those losses significantly…if management is willing to consider and adopt proven strategic approaches.

  • Winning Strategies For Smart Cities, Smart Water, And Water Reuse
    Winning Strategies For Smart Cities, Smart Water, And Water Reuse

    Every city facing infrastructure or operational challenges or concerns about maintaining quality of life in the face of population growth or a changing environment has benefits to gain from a unified smart-city approach. Here are some concepts for promoting understanding and acceptance among utility and government decision-makers, plus several examples of benefits already being garnered by smart cities large and small.

  • Improving Water Treatment Efficiency Via Energy Management, Optimization
    Improving Water Treatment Efficiency Via Energy Management, Optimization

    The cost of water delivered to customers is as much about the energy needed to move it as the chemicals required to treat it. Balancing water chemistry, infrastructure costs, and energy consumption is key to optimizing the overall cost of operation. Experience shows that some astute water suppliers are closer to achieving their ideal outcomes than most people realize. Here are some insights into how that works.

  • D.C. Adds Mussel To Federal Ruling On E. coli Limits

    With a federal judge deciding it needs to do a better job to combat E. coli discharge into its waterways, Washington, D.C. could be turning to an unlikely ally in its struggle to clean up local rivers: mussels.

  • Better CAPEX, OPEX Options For PFAS Treatment

    The documented performance of ion exchange (IX) resins for treating per- and polyfluoroalkyl substances (PFAS) offers new opportunities for more practical solutions in many applications. IX has demonstrated its ability to reduce both capital and operating costs compared to the conventional granular activated carbon (GAC) treatment approach.

  • Put A 'Stop' To Water-Main-Repair Shutdowns And Boil-Water Notices

    For most water or wastewater system operators, engineers, and repair crews, the only thing worse than facing a 24”-main emergency repair is facing an even larger one. To those who have never performed an emergency line stop and bypass, the idea of completing repairs with no service outage, no long-term shutdown, and no ‘boil water’ notice is almost beyond belief. To those who have, it’s a sigh of relief.

  • Another Summer Of Flooding Should Be A Wake-Up Call To Redesign Our Communities

    Hurricane Dorian has left a trail of devastation over the last few days, but an onslaught of destructive floods have hit communities all across the country this summer. From small towns in the Midwest and Southeast to large cities like Washington and New York, torrential rains have inundated homes, cut power, and disrupted lives.

  • Houston To Pay $2 Billion To Address Wastewater Infrastructure

    Wastewater treatment systems are all too familiar with the nation’s buried infrastructure problems — throughout the country, sewer systems have been neglected for decades to the point where the U.S. EPA estimates that $271 billion is needed to upgrade and maintain them in the near future.

  • LTE-M Standard Redefines Cellular Efficiency For Water Meter Readings

    The term “cellular” often calls to mind certain assumptions and limitations based on prior experience with consumer cellphone networks. Don’t confuse cellular-based Internet of Things (IoT) applications with past cellular experiences, though. The relatively new Long Term Evolution for Machines (LTE-M) standard represents a whole new ballgame. In short, “This is not your father’s cellular network.”

  • What Is The Importance Of Pretreatment For Industrial Reverse Osmosis Water Treatment?

    Your body is a machine. Like most machines, you have to properly maintain your body in order for it to function properly. Along with regular cleaning and checkups, you also have to be cognizant of what food you put into your body or else it won’t work at its maximum potential. An industrial reverse osmosis water treatment system actually works in quite a similar way.

  • A Methodical Approach To Water Loss

    A combination of culprits has water utilities spending more than necessary for production while failing to collect all the revenue that should be flowing in. Implementing solutions to water loss in a specific order is critical for municipalities to effectively get a handle on the problem. This systematic approach addresses issues in their order of impact and return on investment with simple, low-cost measures at the start that boost revenue.

  • Will Dissolved Air Flotation Fix Harmful Algal Blooms?

    The State of Florida is facing a problem shared worldwide at this time of year: a prevalence of toxic algae in source water brought on by the combination of warmer temperatures and nutrient runoff. So it’s worth paying attention to a potential fix being implemented in the Sunshine State.

  • Top 10 Challenges In Water And Wastewater Construction Projects

    Can you imagine the excitement and nervousness aerospace engineers must be experiencing when the countdown for rocket launch begins? "Three, two, one, blast off!" The next minutes, hours, and days test the team’s ability, experience, and knowledge put into the project. While this analogy may not be as applicable here, we environmental engineers also experience substantial enthusiasm and anxiety when water or wastewater projects enter the construction and commissioning phases.

  • Peristaltic Pumps, Diaphragm Pumps, Or Neither? The Basics Of Chemical Feed Solutions

    Chemical dosing plays a pivotal role in water and wastewater treatment operations, so selecting the optimal feed system is critical to achieving quality goals and meeting permit requirements. With multiple technologies available, it is important to understand the benefits and downsides of each.

  • A Messy Problem Inspires An Award-Winning Solution

    Denver Water and engineering partners resolve major water quality challenge in crucial South Platte River exchange reservoirs.

  • Continuous “Hands Off” Insulation Resistance Testing Of Critical Motors

    Constant monitoring of critical motors while de-energized prevents failures on startup, reduces unscheduled downtime, saves on major rewinding repairs and increases personnel safety

  • Pressure Data Is Critical To Predicting Distribution Systems Issues

    Fluctuations in pressure are the best indicator that a problem is brewing in a water distribution system, so monitoring pressure at strategic points can provide valuable insight about potential leaks. However, this isn’t as easy as it sounds. The good news is that technology is available to gather pressure data that can be used to enhance service and improve asset management without a large capital investment by utilities.

  • A Smarter, Safer Method For Non-Payment Collection

    Addressing past due accounts traditionally means sending out a crew to turn off the water and then sending them back to restore service when the bill is paid. This can create a less-than-ideal situation by generating significant labor costs while having a potentially negative impact on vulnerable populations. Fortunately, there is a newer method available to address revenue capture while providing enhanced customer service by avoiding a turnoff.

  • Can Atmospheric Water Generation Help Solve The Global Water Crisis?

    In areas where water, infrastructure, and resources are scarce, a natural and novel solution has emerged — arriving out of thin air, so to speak.

  • The Digital Flip: How Innovation Is Transforming Utility Management

    The digital ecosystem continues to evolve, bringing more brainpower to “smart” technologies — and more efficient water treatment operations and asset management to utilities.

  • Perception vs. Reality: The Facts About U.S. Lead Exposures

    The lessons of Flint should be well heeded, and lead mitigation continued, but the big-picture story of lead exposures in the U.S. is a tale of tremendous progress.

  • Reversing The Process: Urban Planners Should Focus On Water First

    With concerns over stormwater management escalating, green stormwater infrastructure (GSI) offers a multi-benefit, cost-effective solution.

  • Solutions To Reduce Water Loss And Gain Revenue

    Most utilities understand they have a nonrevenue water problem, but few know how to deal with it correctly. Start by learning more about how the issue affects your utility and what options are available.

  • Seizing The Digital Opportunity For Water

    The journey toward intelligent water can be expedited with eight key steps — a guideline for gliding through the Digital Water Adoption Curve.

  • AWWA’s Rebel With A Cause

    Presidents and CEOs aren’t typically the types who get the “cool” label, or at least not in the James Dean sense. But when you rise through the ranks of your industry, challenge the status quo, protect everyday citizens, and ride a motorcycle, you have earned the distinction. This brief Q&A gives insight into the history, motivations, and aspirations of current AWWA President Jim Williams — a lifelong champion of the water industry … and a darn cool guy.

  • Pros And Cons Of Seawater Desalination Using RO For Drinking Water

    Using seawater desalination RO treatment systems, coastal communities and island nations can achieve clean and safe water. So why do some countries utilize this advanced treatment technology, while others do not?

  • Water: It Matters More Than Ever

    Water. It’s vital to human life, our economy, and ecosystem - the very survival of our planet. But water challenges are growing more intense than ever before. Increasing volatile weather patterns fueled by climate change, crumbling infrastructure, pollution, and over population that is causing a surge in the demand for water. This means the world’s supply of clean water is rapidly declining putting our future at risk.

  • Hurricane Harvey Was No Match For These Pumps

    The main lift station serving the waste water treatment plant in Morgan’s Point, Texas, continually experienced problems with its three standard non-clog pumps. The pumps frequently clogged when rainfall totals reached or exceeded 2 inches. Shop rags, pieces of 2 x 4 lumber, plastic bottles, gloves, and wet wipes all commonly clogged the pumps when the standard demand increased. Pump removal, unplugging, and recurring repairs were required, but the service company was not always available for immediate assistance, causing problems for residents serviced by this lift station.

  • What You Need To Know About Mixed Oxidant Solution

    The main component of mixed oxidant solution (MOS) is chlorine and its derivatives hypochlorite and hypochlorous acid (ClO−, HClO). It also contains trace amounts of other chlor-oxygen species which work synergistically with the hypochlorite/hypochlorous acid to improve efficacy and performance. MOS is made from brine (salt) and energy, and is used for disinfecting, sanitizing and reducing the risk of infection due to pathogenic microorganisms in water and in other applications. It is particularly useful for customers who have specific challenges such as controlling biofilm or reducing disinfection byproducts exacerbated by biofilms.

  • inDENSE™ Gravimetric Selection Technology

    World Water Works inDENSE™ system increases process throughput and performance through the selection of dense sludge aggregates with improved settling rates and the promotion of enhanced biological phosphorus removal (EBPR).

  • Study Links Fluoridated Water To Lower IQs In Babies

    Many public drinking water supplies contain fluoride, which is added by water systems to help prevent tooth decay in consumers. But a new study has called into question whether those health benefits are outweighed by potential health risks.


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Water Online - News, Innovations, And Thought Leadership On The Water And Wastewater Industry




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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Join us in Chicago, Sept. 21-25, to engage with water professionals from around the world, participate in prestigious programming, enhance your professional development skills, and discover innovative technology and solutions to the water sector’s most important issues. Register by July 12 to save.

Are you going to WEFTEC? Do you have a question about disinfection or filtration? Be sure to stop by Booth 1312 – you can book an appointment here and see a quick rundown of our can't-miss events here.


Jey Jeyapalan, Principal
Civic Enterprises, LLC

Visit the Water Intelligence Panel page.


Butterfly Valves Butterfly Valves

With the development of the first rubber seated butterfly valve more than 70 years ago, the Henry Pratt Company became a trusted name in the flow control industry, setting the standard for product quality and customer service. Today Pratt provides the following range of superior products to the water, wastewater and power generation industries.

Henry Pratt valves represent a long-term commitment to both the customer and to a tradition of product excellence. This commitment is evident in the number of innovations we have brought to the industries we serve. In fact, the Henry Pratt Company was the first to introduce many of the flow control products in use today, including the first rubber seated butterfly valve, one of the first nuclear N-Stamp valves, and the bonded seat butterfly valve.

Navigator 500 Dissolved Oxygen Analyzer Navigator 500 Dissolved Oxygen Analyzer

The Navigator 500 Dissolved Oxygen Analyzer accurately measures the levels of dissolved oxygen in process feed water.

MRI Hoseless Cable-Vac™ Sludge Collector MRI Hoseless Cable-Vac™ Sludge Collector

Developed in 2002, the MRI Hoseless Cable-Vac Sludge Collector removes settled solids throughout the basin, even from the final 2′ at the end wall typically left un-collected by other sludge collectors.

Submersible Drainage Pump XJ 40 Submersible Drainage Pump XJ 40

The submersible drainage pump XJ 40 is ideal for pumping water and dirty water mixed with light abrasives. Pumps with built in AquaTronic unit will always have correct direction of impeller rotation, ensuring peak performance and reduced wear. 50 Hz: head max 34 meters, flow max 23 l/s. 60 Hz: head max 36 meters (118 feet), flow max 22 l/s (349 gpm).

Flygt Centrifugal Grinder Pumps By Xylem Flygt Centrifugal Grinder Pumps By Xylem

The Flygt 3000 series of centrifugal grinder pumps are high-efficiency pumps suitable for handling solids-bearing liquids in residential, commercial and agricultural applications.

EchoShore®-TX Transmission Main Monitoring EchoShore®-TX Transmission Main Monitoring

While it often starts with a leak, historically many water operators have waited until there is an evident problem or rupture on a critical transmission main to react. Today’s utilities have a proven and cost-effective monitoring option that notifies them with a problem in a main. The EchoShore-TX platform will call, text or email you promptly after detecting a leak or other anomaly. Through monitoring and notification, utility response time can be significantly reduced to help mitigate infrastructure damage and water loss.

Omnigrad M TR13 Omnigrad M TR13

Modular RTD assembly protection tube and neck tube, flange.

Fuzzy Filter Fuzzy Filter

Schreiber’s Fuzzy Filter is a unique compressible media filter that very effectively replaces conventional media filtration and can be applied to a wide range of filtration applications in the industrial, municipal as well as commercial markets.

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Water: It Matters More Than Ever Water: It Matters More Than Ever

Water. It’s vital to human life, our economy, and ecosystem - the very survival of our planet. But water challenges are growing more intense than ever before. Increasing volatile weather patterns fueled by climate change, crumbling infrastructure, pollution, and over population that is causing a surge in the demand for water. This means the world’s supply of clean water is rapidly declining putting our future at risk.

inDENSE™ Gravimetric Selection Technology inDENSE™ Gravimetric Selection Technology

World Water Works inDENSE™ system increases process throughput and performance through the selection of dense sludge aggregates with improved settling rates and the promotion of enhanced biological phosphorus removal (EBPR).

AWT210 Transmitter – Opening Up A New World Of Water AWT210 Transmitter – Opening Up A New World Of Water

The intrinsically safe AWT210 two-wire modular transmitter is a single-channel device for the measurement and control of pH, ORP or conductivity in hazardous and non-hazardous area applications.

Aqua-Aerobic Seminars – Where Professionals Learn And Solve Aqua-Aerobic Seminars – Where Professionals Learn And Solve

For more than 30 years, Aqua-Aerobic has provided thousands of industry professionals with education and training through the company’s highly-regarded technical seminar program. Our industry-known seminar is ideal for those individuals involved in the design, application, procurement and operation of water and wastewater treatment plants.

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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.


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

  • Includes:
    Water Reuse
    Water Security
    Physical Modeling
  • Includes:
    Emerging Contaminants
    CWA Regulation
    IoT/Cloud Capabilities
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    Combined Sewer Overflows
    Consumer Outreach
    Grit Behavior
    Corrosion Control
  • Includes:
    Climate Change
    Alternative Project Delivery
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    Hexavalent Chromium
    Advanced Metering


Water Online is the leading source of technical information and thought leadership for the drinking water and wastewater treatment community. If you are an operator, municipal manager, engineering consultant or industrial plant manager involved in the design or maintenance of stormwater, clean water and wastewater systems, you now have access to a comprehensive Web community delivering the latest updates on water and wastewater collection, treatment and distribution technologies to give you the knowledge to succeed in your industry.

In providing this technical information, the site offers detailed coverage of the basic operational elements of the water and wastewater industry: the resource management, supply, treatment and distribution of drinking water and the collection, treatment and disposal of stormwater and wastewater. Water Online covers the many ancillary functions that are required such as: nutrient removal, contaminant removal, wastewater aeration, water instrumentation, utility management and automatic meter reading (AMR), water quality analysis, water membranes, reverse osmosis and desalination, drinking water disinfection, wastewater filtration, pumps, flow control & measurement, stormwater management and sludge conditioning and disposal.

Water Online serves the information needs of engineers, water management planners, operational managers, consultants, elected officials, government personnel and others who are involved in the municipal water supply industry, and the municipal and industrial wastewater treatment field. Reflecting the dynamic and interactive character of the Web, Water Online is the most convenient source of technical, operational, product, management and regulatory information available for the water and wastewater industry.

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