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WATER INDUSTRY FEATURES, INSIGHTS, & ANALYSIS

  • CO<sub>2</sub> For pH Control And Re-Carbonation In Drinking Water Treatment
    CO2 For pH Control And Re-Carbonation In Drinking Water Treatment

    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.

  • Rectangular vs. Circular Clarifiers: Which Is Better?
    Rectangular vs. Circular Clarifiers: Which Is Better?

    Both rectangular and circular configurations have been commonly used in clarifier basins. The relative merits of the two have been discussed at length for decades. Historically, the selection of rectangular versus circular clarifiers has been based on past experience and the preference of the design engineer or design company.

  • The Six Most Common AMI Questions Answered
    The Six Most Common AMI Questions Answered

    Advanced Metering Infrastructure (AMI) has been available for some time, but the majority of water utilities still don’t utilize it. There are varying obstacles that keep more from embracing the technology, from cost prohibitions to lack of expertise. Increasingly, ways around these obstacles are emerging.

  • Carbon Adsorption & Reactivation
    Carbon Adsorption & Reactivation

    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.

  • Water Vs. Climate Change
    Water Vs. Climate Change

    Recently, the United Nations held a conference in Morocco related to climate change issues. The location of the conference had significant meaning because Africa has become a bellwether for the rest of the world when it comes to climate change. Desertification and rising sea levels both impact countries all over that continent.

  • Why Water Infrastructure Should Be The Priority
    Why Water Infrastructure Should Be The Priority

    This article is in support of the Imagine a Day Without Water campaign — a national online movement to raise awareness about the value of water and water infrastructure. See more articles on AMERICAN’s Imagine a Day Without Water home page.

  • ‘You’ve Come A Long Way, Baby’: The Making Of The Modern Day Fire Hydrant
    ‘You’ve Come A Long Way, Baby’: The Making Of The Modern Day Fire Hydrant

    This article is in support of the Imagine a Day Without Water campaign — a national online movement to raise awareness about the value of water and water infrastructure.

  • Before Emergency Strikes: How To Prepare A Plant For Mobile Equipment Services
    Before Emergency Strikes: How To Prepare A Plant For Mobile Equipment Services

    Nobody wants to think about the worst case scenario but if you’re responsible for water treatment at an industrial plant, you can’t avoid it. There are any number of things that can force a plant to go offline and it’s imperative that a contingency plan is in place for such an event. Luckily, there are mobile equipment suppliers that can keep things running during an outage, planned or otherwise. Water Online spoke with one provider of such a service, Evoqua Water Technologies, about how it keeps plants running no matter what.

  • Vacuum Dosing Chemical Feeder For Chlorination And Dechlorination Helps Minimize O&M Costs For City Of Nashua, NH CSO Screening And Disinfection Facility
    Vacuum Dosing Chemical Feeder For Chlorination And Dechlorination Helps Minimize O&M Costs For City Of Nashua, NH CSO Screening And Disinfection Facility

    As part of its Long Term Control Plan to reduce combined sewer overflows (CSOs) to the Merrimack River, the City of Nashua, NH constructed a new Screening and Disinfection facility (SDF) to reduce untreated discharges of CSOs to the Merrimack River.

  • How To Slash Energy Costs With Optimized Aeration Control
    How To Slash Energy Costs With Optimized Aeration Control

    Utilities are under constant pressure to reduce costs, meet regulatory requirements, and improve sustainability. Finding the best way to meet these goals is a constant challenge. Endress+Hauser has been helping water and wastewater utilities achieve their objectives for many years, and spoke with Water Online to discuss how to save
    energy in today’s wastewater treatment facilities.

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DRINKING WATER PRODUCTS

Buffered pH Control Buffered pH Control

It’s no easy task to run your water treatment facility as efficiently as possible while still meeting capacity demands and environmental regulations. But, at Praxair we can help. We have extensive experience in using carbon dioxide to reduce pH in alkaline water for the water and wastewater industry. Replacing mineral acids with CO2 for pH reduction offers many benefits. By no longer buying or storing chemicals that can do more harm than good, you are making your site safer while also reducing costs. This improved process can help you manage peak demand and capacity increases, increase plant flexibility, and lessen your impact on the environment. And when you’re supplied by one of the world's largest carbon dioxide suppliers, you can explore this alternative with confidence.

ETS-UV™ For Water Reuse ETS-UV™ For Water Reuse

Given the critical shortage of drinking water in many regions, advanced treatment and reuse of wastewater is becoming increasingly common as municipalities address water demands and shrinking supplies.

RSS Externally Fed Drum Screens RSS Externally Fed Drum Screens

Self-Cleaning Wedgewire Screen
The RSS Externally Fed Drum Screen is a reliable self-cleaning screen for both municipal wastewater operations as well as many industrial applications. This screening technology performs particularly well in wastewater with high oil or grease loadings as well as scum applications that can blind other types of screens.

I-SO™ In-Situ Oxygenation System I-SO™ In-Situ Oxygenation System

What’s the best way to fight odors in the wastewater industry? Add a little oxygen. Adding Praxair’s pure oxygen to your existing process can raise the level of dissolved oxygen enough to reduce odors without further action. Even better, the use of a Praxair oxygen acetates treatment system will lower costs and help you meet your environmental goals. Our systems help you manage peak demand and increase capacity while reducing Volatile Organic Compound (VOC) emissions.

E33 Adsorption Systems E33 Adsorption Systems

In the adsorption process, contaminants break their bond with the water molecules and chemically adhere to a filter media. This is typically accomplished by directing the water flow through pressure vessels containing the filter media at a rate that allows enough contact time for adsorption to occur. AdEdge Water Technologies’ Bayoxide E33 adsorption media is the industry standard for arsenic removal. This granular ferric oxide media reduces up to 99% total arsenic, including both Arsenic (III) and Arsenic (V).

Ultraviolet Disinfection ETS-UV™ Systems Ultraviolet Disinfection ETS-UV™ Systems

Ultraviolet (UV) irradiation is used for multifunctional purposes.  UV is most commonly used as an environmentally friendly alternative to chemical disinfection. It’s one of the most effective methods for inactivating harmful pathogens such as Listeria, E.coli, Giardia and chlorine tolerant pathogens like Cryptosporidium.  UV is also used for removal of organic and inorganic contaminants, including chlorine, ozone and Total Organic Carbon (TOC).  UV used in conjunction with an Advanced Oxidation Process (AOP) will remove Compounds of Emerging Concerns (CEC's), Synthetic Organics (SO's), Endocrine Disruptor Compounds (EDC's) and Personal and Pharmaceutical Care Products (PPCP's), as well as various taste and odor compounds from water.

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LATEST INSIGHTS ON SOURCE WATER

  • 9 Water Technologies Ready For Liftoff
    9 Water Technologies Ready For Liftoff

    The Global Cleantech 100 identifies nine innovative water/wastewater technologies set to make significant market impact in the next decade.

  • Call To Action For Water Stakeholders: Collaborate
    Call To Action For Water Stakeholders: Collaborate

    In a recent column, Water Online Associate Editor Peter Chawaga wrote about a new plan for drinking water safety in the Trump era. In part, he references a late-2016 U.S. EPA Call to Action to improve the safety and reliability of the nation's drinking water.

  • Saving Energy And Doubling Worldwide Water Supplies – One Drip At A Time
    Saving Energy And Doubling Worldwide Water Supplies – One Drip At A Time

    On a warm December day, I stood in a jojoba field in the Negev Desert in southern Israel and watched water slowly seep up from the ground around the trees. First a tiny spot, then spreading, watering the plants from deep below. This highly efficient system is known as drip irrigation, and I was there to meet with the world’s leading drip irrigation company, Israel-based Netafim.

  • Green Heat: Using Less Water To Create Cleaner, More Abundant Energy
    Green Heat: Using Less Water To Create Cleaner, More Abundant Energy

    Farmers in Uganda and in developing countries around the world are facing major energy and waste management issues. There are anaerobic digestions systems to help farmers manage agricultural waste from plants and animals, but there’s a problem.

  • Changing Membranes And The Future Of Water
    Changing Membranes And The Future Of Water

    A new fellowship has been awarded to students researching the latest advances in membrane technology and, perhaps, changing the future of water.

More Source Water

WATER INDUSTRY FEATURES

  • How To Ensure Your Utility Complies With The LT2
    How To Ensure Your Utility Complies With The LT2

    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?

  • What’s In Your Water?
    What’s In Your Water?

    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.

  • The Benefits Of Continuous Monitoring Of Phosphate In Corrosion Control
    The Benefits Of Continuous Monitoring Of Phosphate In Corrosion Control

    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.

  • Preparing For Algae Season
    Preparing For Algae Season

    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.

  • ORP Sensors – Are They Really The Best Thing “Since Sliced Bread”?
    ORP Sensors – Are They Really The Best Thing “Since Sliced Bread”?

    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.

  • Lessons Learned From Flint
    Lessons Learned From Flint

    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.

  • Carbon Adsorption & Reactivation
    Carbon Adsorption & Reactivation

    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.

More Water Industry Features

DRINKING WATER VIDEOS

Engineers Design New Lead Detector For Water

New sensor offers continuous monitoring, immediate detection of lead.

Lead Poisioning Disaster: How To Fix It

Lead poisoning water service lines are turning up around the globe at an alarming rate leaving millions angry. ePIPE's innovative technology creates a new pipe barrier inside the service lines eliminating water contact with the lead service lines.

Kupferle Foundry - #9800i-GENESIS Turbine Powered Automatic Flushing Device With Chlorine Analyzer

The Eclipse i-Series model #9800i-GENESIS is the newest Intelligent Flushing & Monitoring Station Kupferle offers to maintain safe residual levels and remove DBPs from consumers' water. This permanently installed station incorporates a built-in chlorine analyzer to measure and record disinfectant residual levels based on a programmed sampling schedule.

Water Technology Makes Global Waves In Wisconsin

Wisconsin is built on a culture of innovation with a strong history of developing solutions to the world's water challenges--a place where new ideas and technologies advance. Researchers, companies and policy-makers are working together to provide opportunities for companies within emerging industries. Wisconsin has invested and become a global leader in the the rapidly growing water technology industry.

People Drink Sewage Water For The First Time

Rather drink sewage water than LA tap water any day.

More Drinking Water Videos