chlorine monitoring system Articles

  • 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.

  • 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.

  • Key Operating Strategies for Chlorine Disinfection Operating Systems

    ABSTRACTChlorine has been used as a standard for disinfecting wastewater for many years. While being the standard There are many levels of automation for control of disinfection. To select the best control approach for your facility both control strategies and chlorination chemistry must be understood. Permit conditions must also be fully identified; organism concentrations and operational data. ...

  • Watson-Marlow OEM pumps help meet rising demand for chlorine monitors

    A specialist manufacturer of water quality measurement and monitoring systems is using peristaltic pump technology from Watson-Marlow Fluid Technology Group for use in chlorine monitoring equipment after similar pumps were found less reliable. With customers that include water, industrial and pharmaceutical companies, Analytical Technology Inc (ATI) designs and manufactures its products in ...

  • Chlorine Safety and Prevention: How to Protect Yourself from Chlorine Leaks

    While chlorine gas is widely used in swimming pools, water treatment facilities, cleaning products, pharmaceutical products, and in many other industries, the gas is highly toxic when handled improperly. Training your workers on how to safely use chlorine is one part of health and safety best practices; monitoring your workplace for chlorine leaks is another. Learn about the hidden dangers in ...

  • Effect of advanced water treatment on behaviour of residual chlorine and development of chlorine control method in distribution systems

    The behaviour of residual chlorine concentration in drinking water treated by the mid-chlorination or the advanced water treatment (AWT) was investigated. The AWT removes dissolved organic matter more than the mid-chlorination, thus the rate of residual chlorine reduction is decreased. The analysis of chlorine concentration data measured by automated continuous monitoring devices revealed that ...


    By IWA Publishing

  • De-chlorination Application – Proctor and Gamble, NC., USA.

    Hanovia Photon UV Systems. Installation Date 2001 System Configuration – Two Hanovia Photon PMD320G4 Dechlorination and Disinfection Systems, complete with Certified UVC Lamps, Validated UV Monitors, Lamp Power Switching, UV Dose Control, and optional Quartz Sleeve Automatic Wipers. Variable Flow: Up to 180 usgpm (40.9m3/hr) per stream Water Quality: Pre R.O. filtered city ...

  • Passively Enhanced In-Situ Biodegradation of Chlorinated Solvents

    Harding Lawson Associates (HLA) conducted a field demonstration to evaluate in situ enhanced anaerobic biodegradation of chlorinated solvents using Hydrogen Release Compound (HRC). The technology is designed to enhance the natural biodegradation process for a more rapid and complete degradation of the organic contaminants to non-toxic compounds (e.g., ethylene). This paper presents the results ...


    By Regenesis

  • 9 key parameters for the Chlorine and Soda production industry

    Large-scale production of chlorine involves several steps and many pieces of equipment. The plant also simultaneously produces sodium hydroxide (caustic soda)hydrogen gas. A typical plant consists of brine production/treatment, cell operations, chlorine cooling & drying, chlorine compression & liquefaction, liquid chlorine storage & loading, caustic handling, evaporation, storage ...


    By AquaGas Pty Ltd

  • Passively Enhanced in Situ Biodegradation of Chlorinated Solvents.

    INTRODUCTION Harding Lawson Associates (HLA) conducted a field demonstration to evaluate in situ enhanced anaerobic biodegradation of chlorinated solvents using Hydrogen Release Compound (HRC). The technology is designed to enhance the natural biodegradation process for a more rapid and complete degradation of the organic contaminants to non-toxic compounds (e.g., ethylene). This paper presents ...


    By Regenesis

  • Scenarios evaluation tool for chlorinated solvent MNA

    Over the past three decades, much progress has been made in the remediation of chlorinated solvents from the subsurface. Yet these pervasive contaminants continue to present a significant challenge to the U.S. Department of Energy (DOE), other federal agencies, and other public and private organizations. The physical and chemical properties of chlorinated solvents make it difficult to rapidly ...


  • Field monitoring and numerical modeling as tools in effect-evaluation of waste heat and chlorination byproducts via cooling water discharges

    Power plants and other industrial facilities apply cooling water to remove waste heat from their condensers and heat exchangers. These industries are obliged to predict the thermal and environmental effects on the water bodies on which the discharge takes place in order minimize negative impact on aquatic organisms. The general approach of EC Water Framework Directive acquires the evaluation of ...


    By Sweco Nederland BV

  • Principles and practices of enhanced anaerobic bioremediation of chlorinated solvents

    PROBLEM STATEMENTThe Department of Defense (DoD) has identified hundreds of sites where groundwater is contaminated with chlorinated solvents; these represent one of the DoD’s largest remediation liabilities. In addition to their use in many industrial processes, chlorinated solvents have historically been used for cleaning and degreasing such diverse products as aircraft engines, automobile ...


    By RNAS Remediation Products

  • Multiyear Temporal Changes in Chlorinated Solvent Concentrations at 23 Monitored Natural Attenuation Sites

    Introduction There is an increasing interest in predicting how long it will take natural attenuation processes to remediate groundwater plumes. The U.S Environmental Protection Agency (USEPA) Monitored Natural Attenuation (MNA) Directive (USEPA 1999) specifies that MNA relies on “ . . . a variety of physical, chemical, or biological processes that, under favorable conditions, act without human ...


  • Chlorine Dioxide gas detection: A comprehensive guide

    Introduction Some years agoago, the bleaching process in the paper industry was changed from using Chlorine (Cl2) as bleaching agent to Chlorine dioxide (ClO2). This was a challenge forThis posed a major challenge to industrial hygienists, as there were no sensors or detectors available that were specific to Chlorine dioxide: There was no sensor technology for gas detectors available that ...

  • Explosion-proof chlorine analyzers facilitate chlorination and discharge compliance of LNG terminal - Case Study

    The Dunkirk LNG terminal in France is owned and operated by the EDF subsidiary Dunkerque LNG. The terminal has facilities such as a berthing station with the hosting capacity of around 80 LNG tankers a year, unloading system and storage facilities. The LNG is transported to storage tanks by methane tankers equipped with reinforced hulls and double-walled tanks.The berth installed at the terminal ...


    By AppliTek NV

  • Modeling and analysis of chlorine dioxide, chlorite, and chlorate propagation in a drinking water distribution system

    The drinking water distribution system of Cremona, in the north of Italy, was monitored for 6 years (2006–2011) analyzing chlorine dioxide, chlorite, and chlorate concentrations. The software Epanet 2.0 (USEPA) was applied to the distribution system. The mixing zone of the water coming from the two drinking water treatment plants, respectively located to the west and east of the city, was ...


    By IWA Publishing

  • Investigation of natural organic matter (NOM) character and its removal in a chlorinated and chloraminated system at Rand Water, South Africa

    In its natural environment, natural organic matter (NOM) is not problematic. However, during water treatment NOM does affect water quality specifically during the disinfection step, where if NOM is present it reacts with disinfectants resulting in the formation of disinfection by-products. To emphasize the importance of NOM monitoring during potable water treatment this study aimed to ...


    By IWA Publishing

  • Optimisation chlorination strategy cooling water system Verve Energy’s Cockburn and Kwinana power plants

    In 2006, Verve Energy had, through the asset management department of Kwinana Power Station, contracted KEMA for advice on their antifouling methodology for its cooling water system. This has been done by optimizing its chlorination procedure by means of implementation of the Pulse-Chlorination® principle. Onset for the project was the commissioning of station Cockburn Stage 1 (CKB Stage 1). ...


    By Sweco Nederland BV

  • Global experiences in optimizing biofouling control through Pulse-Chlorination®

    ABSTRACT Cooling water systems provide optimal conditions for settlement and growth of fouling species, e.g. mussels, oysters and barnacles. Excessive biofouling results in major operational upsets and even unplanned shutdowns. Controlling micro- and macrofouling organisms in once-through cooling water systems is key for safe reliable operation. For this, chlorination is globally still ...


    By Sweco Nederland BV

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