THM Removal Articles

  • Raw Water Reservoir - Cyanobacteria, Manganese, & Iron Mitigation (ID24) - Case Study

    Topics: blue-green algae, taste & odor, THM removal, TTHM, hypolimnetic oxygenation, MN and FE control, treatment savings Overview: This reservoir is the raw water supply reservoir for a city, with the water treatment plant (WTP) situated adjacent to the lake. This man-made reservoir has a surface area of about 48 acres, with an average depth of 10 ft and a maximum ...


    By Medora Corporation

  • TTHM Reduction Downstream of a 1MG GST

    In-tank spray aeration systems can solve TTHM problems down the line. Topics: 1MG Tank, TTHM Removal, SN Series System Overview: 90% of water in this system comes from a third-party water treatment plant and is pumped 8 miles to the H-36 Ground Storage Tank. From here the water is distributed to the western pressure zone where all Stage 2 DBPR ...


    By Medora Corporation

  • THM Removal in Potable Water Storage Tanks - Case Study

    City tests various trihalomethane removal systems to ensure full EPA compliance. Topics: trihalomethane, THM, TTHM, spray aeration, potable water tanks, GridBee® SN Series THM Removal System Project Overview: This location had a tank battery of four similar 1.5 MG bolted steel tanks installed serving as temporary storage during the ...


    By Medora Corporation

  • Trihalomethane (THM) Removal in a Clearwell - Case Study

    60% reduction of total THMs achieved. No more worries about EPA compliance. Topics: clearwell, certified tests, chlorine, trihalomethane reduction, stratification System Overview: This is a two (2) clearwell system with water flow in series through Clearwell #1, Clearwell #2, then to distribution. Clearwell Build ...


    By Medora Corporation

  • A comparison of photoelectrochemical oxygen demand to traditional methods for monitoring natural organic matter in surface water - Case Study

    Introduction Natural Organic Matter (NOM) refers to a group of carbon-based compounds found in natural water systems formed by decomposition of organic materials and associated metabolic reactions. While NOM itself does not pose a risk to human health, some NOM compounds are known to react with chlorine and cloramines in drinking water treatment to produce carcinogenic disinfection ...


    By MANTECH Inc.

  • Controlling treatment disinfection byproduct creation from natural organic materials - Case Study

    Safe operation of a water treatment plant requires careful monitoring of the water supply for any substances entering the treatment works that could negatively impact treated water quality. One aspect of water quality that has recently garnered more attention from authorities and utilities is natural organic matter (NOM). This is a group of carbon-based compounds found in natural water systems ...


    By MANTECH Inc.

  • Rapid source and treated water quality testing - Case Study

    Rapid Source & Treated Water Quality Testing Using Chemical Oxygen Demand On June 1, 2018 MANTECH representative Justin Dickerman gave a presentation at the Ontario Water Works Association (OWWA) Ottawa Seminar event. He shared information about rapid source and treated water quality testing using chemical oxygen demand ...


    By MANTECH Inc.

  • Monitoring natural organic matter in surface water - Case Study

    A Comparison of Photoelectrochemical Oxygen Demand to Traditional Methods for Monitoring Natural Organic Matter in Surface Water Introduction Natural Organic Matter (NOM) refers to a group of carbon-based compounds found in natural water systems formed by decomposition of organic materials and associated metabolic reactions. While NOM itself does not pose a risk to human health, ...


    By MANTECH Inc.

  • Taste and Odour Event Identified by peCOD - Case Study

    A drinking water utility in Florida treats groundwater from an extensive wellfield system containing 48 different wells, as well as surface water from a local creek reservoir. Due to the large number of sources, overall influent quality varies greatly. This presents a need to constantly monitor influent water quality, and use feedback loops to optimize treatment and adequately remove the natural ...


    By MANTECH Inc.

  • Retaining the natural approach for bottled and flavoured water - Case Study

    The continued growth in the market for bottled waters and flavoured waters means increasing demands for water purification at formulation and packaging facilities. Demand for Water Purification is Growing The continued growth in the market for bottled waters and flavoured waters means increasing demands for water purification at ...


    By atg UV Technology

  • Introducing ozone to water purification – Case Study

    Traditionally, chlorine has been used to disinfect water for drinking. Unfortunately, chlorine produces carcinogenic by-products called trihalomethanes (THM’s) when it reacts with organic substances in surface waters. The recent adoption of the Surface Treatment Rules by the U.S. E.P.A. places strict limits on chlorine. Because ozone produces fewer disinfecting by-products, the EPA, along ...


    By Sierra Instruments, Inc.

  • Potable tank THM reduction - Case study

    Topics: potable, THM reduction, TTHM, chlorine, stratification/water age ...


    By Medora Corporation

  • 3 Important Considerations For Successful THM Removal

    1) Trihalomethane (THM) removal is not one size fits all. ...


    By Medora Corporation

  • THM Removal in Two 300,000 Gallon clearwells - Case study

    Greater than 60% THM reduction observed Topics: clearwell, certified tests, chlorine, trihalomethane reduction, stratification System Overview: Water flows in series through Clearwell #1 to # 2, then onto distribution. Tank / Reservoir Build Information: Tank Type: Two (2) Identical, Cylindrical, ...


    By Medora Corporation

  • THM Removal in a 1MG Steel ground storage tank - Case study

    >75% reduction in TTHMs achieved. Topics: trihalomethane reduction, spray aeration ...


    By Medora Corporation

  • THM Removal in a 750,000 gallon tank - Case study

    >60% reduction in TTHMs achieved. Topics: trihalomethane reduction, spray aeration System Overview: This municipality purchases water from a neighboring community. Disinfectant Type: Chlorine Tank / Reservoir Build Information: Name: East Tank Volume: 750,000 gallons ...


    By Medora Corporation

  • Controlling Treatment Disinfection Byproduct Creation from Natural Organic Materials

    Safe operation of a water treatment plant requires careful monitoring of the water supply for any substances entering the treatment works that could negatively impact treated water quality. One aspect of water quality that has recently garnered more attention from authorities and utilities is natural organic matter (NOM). This is a group of carbon-based compounds found in natural water systems ...


    By MANTECH Inc.

  • Surface Water Monitoring - Case Study

    Safe operation of a Water Treatment Plant (WTP) requires careful monitoring of the water supply influent to the plant, as a guard for any substances entering the treatment works that could negatively impact treated water quality in the distribution system. One aspect of water quality that has recently garnered more attention from authorities and utilities is Natural Organic Matter (NOM), which ...


    By MANTECH Inc.

  • You Can Keep Your Tanks Full After Installing Mixing or a Trihalomethane (THM) Removal System

    Many systems rely on deep draw downs, low tank levels, and flushing to break temperature stratification and keep trihalomethanes from becoming more of a problem. ...


    By Medora Corporation

  • 6 Surprising sources of chemical exposure

    6 Surprising sources of chemical exposureWe may be careful with that bottle of bleach, can of paint or the ominous bottle of unknown chemical solution found in the basement. But what about everyday actions that may expose us unknowingly to potentially harmful substances? Read on to find some surprising sources of chemical exposure, and what to do about them. 1 - Shower The ...


    By Allerair Industries

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