chlorinated oxidizer Articles

  • Chlorination

    Chlorination is the process of adding compounds containing the element chlorine, generally in oxidation state (0) or (I), to water as a method of water purification to make it fit for ...


    By IWA Publishing

  • Chlorine

    Due to the complexity of chlorine chemistry, the activity and forms of chlorine is not well understood. Its reactions are not always 'predictable' and are somewhat unique. This memo is intended to provide some simple insight of the most common forms of chlorine that we at Osmonics® encounter. The most basic form of chlorine is Chlorine Gas (Cl2). This is usually the cheapest form of chlorination, ...

  • Chlorination

    Chlorination is the process of adding compounds containing the element chlorine, generally in oxidation state (0) or (I), to water as a method of water purification to make it fit for ...


    By IWA Publishing

  • Ultraviolet Light Oxidation of Free-Chlorine in Water

    Chlorine is the most frequently used chemical for water disinfection. Many industrial and commercial manufacturing facilities cannot tolerate the introduction of chlorine into the process because of contamination and unwanted chemical reactions. Chlorine affects the flavour and odour of drinks and fluids, accelerates corrosion on process vessels and piping, and can also damage delicate process ...

  • In-Situ Oxidation of a Chlorinated Pesticide Impacted Soil - Case Study

    Site Overview Former Agricultural Area in Southern California Contamination DDE, DDD, DDT, Toxaphene History Residual concentrations of chlorinated pesticides (DDE, DDD, DDT, and Toxaphene) were identified in soils around the former farm ...


    By EN Rx

  • Reduction of chlorinous odor by the combination of oxidation and ion-exchange treatments

    To better control chlorinous odor in tap water, we assessed the performance of the combination of oxidation (ozonation or advanced oxidation processes, AOP) and ion-exchange treatment. In this process, the hydrophilic neutral fraction (a major dissolved organic matter (DOM) fraction) is converted to ionic species, and these ions and ammonium ion are effectively removed during ion-exchange ...


    By IWA Publishing

  • Flameless Thermal Oxidation For Chlorinated Waste Vent Gas Destruction

    Faced with a need to reduce nitrogen oxide (NOx) emission levels, a major gulf-coast chemical plant proactively evaluated several strategies and technologies that could be implemented to maintain compliance, selecting Selas Fluid's Thermatrix flameless thermal oxidation technology. ...

  • Investigation of the use of Chlorine Based Advanced Oxidation in Surface Water: Oxidation of Natural Organic Matter and Formation of Disinfection Byproducts

    Disinfection byproduct (DBP) formation during the treatment of raw Colorado River Water (CRW) using aqueous chlorine and ultraviolet (UV) light advanced oxidation processes (AOPs) was investigated. Here, CRW was combined with aqueous chlorine from two distinct sources (electrochemically—generated Mixed Oxidant Solution (MOS) and commercial sodium hypochlorite) and then exposed to ...


    By MIOX Corporation

  • Catalytic oxidation and spectroscopic analysis of simulated wastewater containing acid chrome blue K by using chlorine dioxide as oxidant

    An activated carbon-MnO2 catalyst was prepared by the dipping-calcination method using activated carbon as catalyst support. The catalyst was used for the catalytic oxidation of simulated acid chrome blue K wastewater. The COD removal efficiency and decolor efficiency by catalytic oxidation are 72.0% and 87.8%, respectively, at the condition of wastewater's COD is 2,418 mg/L, the optimum pH value ...


    By IWA Publishing

  • The Wonders of Ammonia & Chlorine

    The two most common chemicals found in your home, office and commercial facilities in one form or another are Ammonia (NH3) and Chlorine (Cl2). They are also two of the oldest and most widely produced chemicals in commercial use around the world. Ammonia, a refrigerant by “nature” Refrigeration by mechanical means goes back to the 1800s and ammonia was among the earliest chemicals to ...

  • In Situ Bioremediation of Chlorinated Solvents

    ABSTRACT: In situ bioremediation is ongoing at a former manufacturing facility in Portland, Oregon.  Shallow groundwater at the site was impacted by chlorinated solvents, primarily trichloroethene and degradation products cis-1,2-dichloroethene and vinyl chloride.  In situ chemical oxidation treatment was completed in 2003 via the injection of sodium permanganate in source ...


    By EOS Remediation, LLC

  • Standard Chlorine of Delaware Remediation

    By designing a 70-foot deep barrier wall, Black & Veatch was able to cut off contaminant source areas from a creek near New Castle, Delaware. The groundwater treatment system that Black & Veatch designed prevents site contamination from reaching the underlying drinking water aquifer. The Standard Chlorine of Delaware Site is a 65 acre area including an abandoned chlorobenzene ...


    By Black & Veatch Corporation

  • Chlorine mystery solved

    Following the installation of in-pipe drinking water quality monitoring sondes, distribution engineers discovered an occasional significant disparity between the Intellisondes’ data and results from grab samples tested by a photometer tablet (DPD) method. For most of the time, there was close agreement between the two methods, but periodically, the photometer results varied wildly, whilst ...


    By Intellitect Water Ltd

  • Sanitation Using Ozone & Chlorine

    For nearly 100 years, ozone has been used all over the world for water sanitation. It is nature’s strongest oxidizer and has a byproduct of pure oxygen. Chlorine, on the other hand, is a very effective, time-proven chemical, but is ineffective against hard-to-kill microorganisms such as cryptosporidium. It also has some unpleasant byproducts. Together, however, these two substances can ...

  • Controlling the addition of Chlorine into a Process

    There are several methods for controlling the addition of chlorine into a process. These methods include flow proportional injection, ORP (oxidation reduction potential) or a residual chlorine analyzer. Each method measures a different process characteristic. Depending on the specific type of process being controlled, there generally is a best choice for controlling the injection of either ...


    By Walchem, Iwaki America Inc.

  • In situ treatment of a complex mix of chlorinated solvents: anaerobic reductive dehalogenation after chemical oxidation

    Treatment of chlorinated organic compounds has been ongoing at this New England facility (Site) for over 15 years. The extraction and above ground treatment system for groundwater containing tetrachloroethene (PCE), trichloroethene (TCE), 1,1,1-trichloroethane (1,1,1-TCA) and other chlorinated organic compounds has been running since September 1992. The full-scale remedy of in-situ chemical ...


    By RNAS Remediation Products

  • Inactivation of Cryptosporidium Parvum oocysts and Clostridium Perfringens spores by a mixed-oxidant disinfectant and by free Chlorine

    Cryptosporidium parvum oocysts and Clostridium perfringens spores are very resistant to chlorine and other drinking-water disinfectants. Clostridium perfringens spores have been suggested as a surrogate indicator of disinfectant activity against Cryptosporidium parvum and other hardy pathogens in water. In this study, an alternative disinfection system consisting of an electrochemically produced ...


    By MIOX Corporation

  • In Situ Chemical Oxidation Remediation Pilot Study Of A Karst Bedrock Aquifer Contaminated With Chlorinated Solvents

    ABSTRACT A pilot study to evaluate an innovative in situ treatment technology was implemented at Letterkenny Army Depot, Chambersburg, Pennsylvania, for a limestone bedrock aquifer contaminated with chlorinated solvents. This technology destroys VOCs in groundwater, utilizing a network of injection points to deliver a solution of hydrogen peroxide (50%), catalysts, and surfactants. The ...


    By Weston Solutions, Inc

  • Effect of advanced oxidation processes on nonylphenol removal with respect to chlorination in drinking water treatment

    Any nonylphenol compounds found in water have to be removed since they are endocrine disruptors. In this study, natural water from the river Ebro fortified with nonylphenol compounds (4n-nonylphenol and technical nonylphenol) is used as a sample in order to simulate a real situation in drinking water treatment plants. The aim is to compare conventional disinfection with advanced oxidation ...


    By IWA Publishing

  • Case study - Chlorinated groundwater treatment

    Overview A Fortune 50 company implemented a remedial project to collect and treat polluted groundwater from a site in Central New York, preventing the mitigation of impacted groundwater from flowing into local waterways. An engineering and construction firm was hired to design and build an effective, efficient groundwater treatment system. Collection of the polluted water would be ...

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