Granular Activated Carbon Granular Activated Carbon

Calgon Carbon created the first granular activated carbon (GAC) from bituminous coal in the 1940s and has staked a position of global industry leadership ever since.

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.

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.

Ion Exchange Ion Exchange

Calgon Carbon’s ion exchange technology is designed to remove dissolved ionic compounds from water or other liquids. Calgon Carbon offers media, fixed bed and continuous systems for a variety of applications.

SHS & SHP Sidehill Screens SHS & SHP Sidehill Screens

Simple And Economical Solids Separation
The simplicity of the SHS and SHP Sidehill Screens make them an excellent choice static screening applications. With no motors or moving parts the Sidehill Screens let gravity do the work as effluent flows down the screening media.  The screening elements are fixed, curved, slotted, wedgewire screens oriented horizontally across the direction of flow. The screening surface is positioned at a steeply sloped angle providing an effective means of quickly stripping of liquid and allowing the solids to slide off the bottom of the screen.

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).



  • 1,4-Dioxane’s Drinking Water Threat
    1,4-Dioxane’s Drinking Water Threat

    A known carcinogen that makes its way into drinking water supplies through personal care products is under fire in New York. While the state mulls stricter limits, consumers remain exposed.

  • Obama EPA Takes A Bow, Touts #WaterProgress
    Obama EPA Takes A Bow, Touts #WaterProgress

    In the years the U.S. EPA has worked under the Obama administration, the agency has been very active. Depending on your perspective, that may be good or bad. While some see new regulations as necessary to protect citizens and the environment (and to drive innovation in the water sector), others argue that recent actions have been overly restrictive and unduly burdensome.

  • Does Healthy Drinking Water Mean Stricter Limits On Atrazine?
    Does Healthy Drinking Water Mean Stricter Limits On Atrazine?

    The U.S. EPA is considering tightening its water regulations on atrazine, an herbicide known to cause adverse health effects if ingested. As researchers and state regulators advocate for stricter limits, it may be time to act.

  • Can The DWSRF Solve The Lead Crisis?
    Can The DWSRF Solve The Lead Crisis?

    The federal Drinking Water State Revolving Fund was designed to help communities pay for infrastructure projects and meet safety regulations. But can it be applied for the greatest threat to drinking water of our time?

  • Meet The New Lead And Copper Rule
    Meet The New Lead And Copper Rule

    As the U.S. EPA’s Lead and Copper Rule turns 25 years old, the country has become inundated with contamination crises. A much-needed update to the regulation may put an end to that.



  • 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?

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.