free chlorine monitor Articles

  • Chlorine levels in pools

    In response to a SportExcel CPD seminar in April 2004 on pool water disinfection ISRM is reissuing this updated guidance. Also, recent press reports have highlighted the theoretical risks of high chlorine levels in swimming pools in relation to both pregnant women and levels of childhood asthma. This further reinforces the need for operators to provide the highest pool water standards possible. ...

  • 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

  • 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 ...

  • Chlorine inactivation of hepatitis E virus and human adenovirus 2 in water

    Hepatitis E virus (HEV) is transmitted via the fecal–oral route and has been recognized as a common source of large waterborne outbreaks involving contaminated water in developing countries. Thus, there is the need to produce experimental data on the disinfection kinetics of HEV by chlorine in water samples with diverse levels of fecal contamination. Here, the inactivation of HEV and ...


    By IWA Publishing

  • Chlorine requirement for biologically stable drinking water after nanofiltration

    There is considerable interest in minimizing the chlorine residual in Japan's tap water because of increasing consumer complaints about the chlorinous odor of drinking water. However, minimization of the chlorine residual requires stricter control of biodegradable organics in finished water to ensure biological stability during water distribution. In this context, we investigated the ...


    By IWA Publishing

  • Chemical-Free Treatment of Recirculating Water Using Pulsed-Power

    Untitled Document Regulatory pressures and economic considerations require industry to become cleaner, more efficient, and more environmentally benign. Such operating principles advance not only ...


    By Dolphin WaterCare

  • Evaluation of Ecological Risks Associated with the use of Chlorine Dioxide for the Bleaching of Pulp: Scientific Progress Since 1993

    1.1 Scope and Objectives A small number of viable options are presently available for the bleaching of wood pulp (delignification and brightening) during the manufacture of pulp and paper. The use of chlorine dioxide (ClO2) in the bleaching process has largely superceded the earlier use of Cl2, or elemental chlorine, in the majority of North American pulp mills: It was discovered over a decade ...

  • Unique technology for monitoring piped water

    INTELLITECT WATER has launched a unique, highly innovative drinking water monitoring technology that will revolutionise the delivery of drinking water. The new technology monitors the quality of water in pipeline distribution networks and for the first time provides reliable data to protect the integrity of the water quality, to enhance customer satisfaction and to improve operational efficiency. ...


    By Intellitect Water Ltd

  • In-pipe monitors turn dreams into reality

    In-pipe monitors turn dreams into reality The quality of tap water has improved enormously in recent decades, but for largely technological reasons, until recently, knowledge of water quality between the treatment works and the tap has been an almost impossible dream for water treatment and distribution network managers. In this article, Jo Cooper, Product Specialist at Intellitect Water, will ...


    By Intellitect Water Ltd

  • Online Process Analyzer Installed at F.J. Horgan WTP to Monitor Chloramination

    Construction was completed on the City of Toronto's F.J. Hor-gan Water Treatment Plant in 1979, more than 60 years after chloramine had first been used to disinfect drinking water in an Ottawa plant. By then there was little debate about the benefits of chloramination and it was incorporated into the new plant's design as part of the disinfection process. Chloramine is more stable than free ...

  • Plant for the Istanbul waterworks

    Shock chlorination for a water quantity of 55,000 m³/h! This is the result of a large project carried out by Grundfos Alldos for the city of Istanbul together with Durko as the local representative.The background: the municipal waterworks of the Turkish metropolis draw their raw water from a local lake. The water is routed from there to the various waterworks for treatment.To enable problem-free ...


  • Online Analyzers Improve Control of Chloramination Processes in Milwaukee

    The Milwaukee Water Works is a national leader in providing high quality drinking water and monitoring water quality. Since 1998, it has invested $227 million in its infrastructure, from treatment plants to distribution systems, to ensure high quality drinking water and reliable supply. The Milwaukee Water Works treats Lake Michigan water with Ozone gas as a primary disinfectant because it ...

  • On Line Control Strategies for Disinfection Systems: Success and Failure

    ABSTRACTThere are many levels of automation for control of chlorination systems. To select the best control approach for a facility, both control strategies and chlorination chemistry must be understood. Permit conditions including organism concentrations and operating data must also be fully identified. Many States require compliance with organism concentrations, as well as residual chlorine and ...

  • San Jose Water Company Solves Chloramine Residual Problem with the Process Solutions, Inc. Monoclor Chloramine Management System

    Located on the southern edge of California’s ever-expanding Silicon Valley, the San Jose Water Company treats and distributes water to over 1 million people. Founded in 1866, the investor-owned public utility has built a reputation for being focused on customer service and has been an early adopter of new treatment Technologies. Like many water utilities, San Jose Water has had to adapt to ...

  • Ultraviolet disinfection systems, the best solution to school swimming pools

    School swimming pools are a valuable asset, and are now present in the majority of high schools and higher education facilities throughout the UK.  Whilst school pools vary in size, shape and usage, many school swimming facilities are facing a common dilemma in their water disinfection strategy.  Existing treatment regimes are often badly designed, under sized or simply outdated, which ...


    By atg UV Technology

  • Pulp and Paper Mills Industry - Pollution Prevention Guidelines

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...


    By The World Bank

  • Project profile - Bois Forte reservation palmquist site – Minnesota arsenic, iron, manganese treatment

    Background In May 2007, AdEdge Technologies, Inc. was selected by Indian Health Services to supply an arsenic, iron, and manganese treatment system for the Bois Forte Reservation – Palmquist Community Water System in Minnesota. The system has two wells that combine together to serve potable water to 50 connections in the tribal community. The system serves a population of ...

  • Managing risks from virus intrusion into water distribution systems due to pressure transients

    Low or negative pressure transients in water distribution systems, caused by unexpected events (e.g. power outages) or routine operation/maintenance activities, are usually brief and thus are rarely monitored or alarmed. Previous studies have shown connections between negative pressure events in water distribution systems and potential public health consequences. Using a quantitative microbial ...


    By IWA Publishing

  • The Benefits Of UV Disinfection In The Pharmaceutical Industry

    The quality standards required for purified water in the production of pharmaceuticals have never been stricter, with manufacturers having to conform to an ever increasing number of international standards. Craig Howarth, Managing Director of Hanovia Limited, introduces a number of interesting new developments in UV technology for disinfection and dechlorination. ...

  • Lakeview Estates MI Project Profile

    Background In August, 2007 AdEdge Technologies, Inc. was selected among other vendors by Tri-County Drilling to supply an arsenic, iron, and manganese treatment system for the Lakeview Estates MHP in Durand, Michigan. The system consists of multiple wells that combine together to serve potable water to 239 connections in the community. Several options were considered based on the need to ...

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