Calgon Articles

  1. Granular Activated Carbon Removes PFOA From Drinking Water
    12/7/2016

    In the fall of 2015, a small village on the border of Vermont in New York State, tested positive for Perfluorinated Compounds (PFCs), specifically Perfluorooctanoic Acid (PFOA), in the municipal drinking water. The influent levels of PFOA in the water were above 600 ng/L, and thus considered harmful to village residents. Realizing that PFOA was on the U.S. EPA Contaminant Candidate List, the Village solicited the services of engineering firm CT Male Associates to investigate treatment options and provide a treatment system.

  2. Granular Activated Carbon Removes 1, 2, 3 – TCP
    8/4/2016

    What is 1, 2, 3 - TCP? 1, 2, 3 - TCP is a man-made, colorless, chlorinated hydrocarbon that is used as a degreasing and cleaning agent and industrial solvent. It was also used as a chemical in pesticides for low growing crops such as potatoes, tobacco, and beets. 1, 2, 3 - TCP passes through soil and leaches into ground water, contaminating drinking water sources. 1, 2, 3 - TCP is a non-aqueous liquid that is more dense than water, making it difficult to remove from ground water wells. This compound is currently unregulated by the USEPA, although it is on the Contaminant Candidate List 4 (CCL4) for future regulation.

  3. Effective Solutions For Removing Short-Chain PFAS, GenX, And PFAS Precursors
    6/6/2019

    Debate about regulating per- and polyfluoroalkyl substances is heating up across the country as the extent of known contamination continues to grow at an alarming rate. Also known as PFAS, this large group of toxic fluorinated compounds was used widely in industrial and consumer applications. Progressive water utilities are trying to quickly get a handle on the problem to better protect their customers from even further exposure.

  4. How To Disinfect Wastewater In The Most Eco-Friendly Way
    11/20/2018

    Wastewater treatment facilities can be designed for physical and biological removal of numerous contaminants. Each plant is unique, yet nearly all wastewater plants must provide disinfection before discharging or reusing the effluent.

  5. Treating Emerging Contaminants With UV Advanced Oxidation
    9/4/2018

    As technology improves, contaminants can be measured in ever-smaller quantities. Pollutants formerly undetected are now becoming emerging contaminants of concern. Water utility managers must stay abreast of potential new regulations and plan for ways to address these contaminants.

  6. How To Select The Right Carbon For Industrial Wastewater Systems
    8/23/2018

    Most industries are required to remove contaminants from wastewater systems before discharge to a receiving stream or municipal facility. Depending on the industry, contaminants may be numerous or difficult to treat. Finding the most effective, cost-efficient treatment method is critical for both business and the environment.

  7. What You Need To Know About 1,2,3-TCP And Drinking Water
    7/9/2018

    As our ability to measure contaminants at ever smaller concentrations improves, “emerging contaminants” are on the rise. Per the U.S. Environmental Protection Agency (EPA), emerging contaminants are chemicals or materials characterized by a perceived, potential, or real threat to human health or the environment.

  8. Granular Activated Carbon: A Long-Term Solution For Meeting DPB Compliance
    7/31/2017

    When the Cobb County-Marietta Water Authority (CCMWA) anticipated the need to upgrade the Hugh A. Wyckoff water treatment plant, they turned to granular activated carbon (GAC) technology after vetting several alternatives. The plant, a wholesaler in a two-plant system, processes up to 72 million gallons per day and serves about 350,000 people. Comprising of Wyckoff and the James E. Quarles treatment plant, CCMWA is the second largest water provider in Georgia.

  9. Treatment Alternatives For PFCs
    7/4/2017

    Over the past two years, no groundwater issue has perhaps received as much community focus and attention as polyfluoroalkyl and perfluoroalkyl substances like PFOA and PFOS, often referred to as perflourinated compounds (PFCs). The U.S. EPA issued a health advisory, limiting the amount of these compounds to 70 parts/trillion which kicked off a nationwide evaluation of local water sources.

  10. How To Select The Right Activated Carbon For PFAS Removal
    6/16/2017

    No water contamination issue is grabbing more headlines these days than that of perfluorinated chemicals, commonly referred to as PFCs or PFAS. Concerns over the chemicals have sprung up all over the country, prompted by contamination from industrial wastewater and military firefighting foam. Regardless of where the issue has come up or what caused it, everyone who has been affected wants the same thing: an effective treatment solution. To discuss such a solution, Water Online spoke with Calgon Carbon Corporation.