chlorine incident Articles

  • Counting the costs of chemical incidents

    The consequences of a lack of control when using chemical substances in the workplace are well known and apparent.  Any health and safety expert can tell you of at least one major accident whereby poor chemical management policies and procedures have lead to disaster.  Examples include Bhopal, Grangemouth, Flixborough, Seveso and more recently, Buncefield.  Major accidents like ...

  • Case study - Emergency equipment for the absorption of chlorine in hospitals

    Chlorine is a strong oxidant that in normal conditions and in its pure state formsdichlorine, a toxic gas with a yellow-greenish colour formed by diatomic molecules (Cl2) that are about 2.5 times heavier than air and have an unpleasant smell. Among its multiple applications and due to its powerful oxidising nature, it is widely used forwater purificationin sewage treatment plants and as ...


    By Bioconservacion SA

  • Filtration & Chlorination Systems: Household Water Treatment Options in Developing Countries

    Five household water treatment and safe storage (HWTS)  options – chlorination, solar disinfection, ceramic filtration, sand filtration, and flocculation/disinfection – are proven to improve microbiological quality and prevent diarrheal disease in developing countries.  Other options – such as filtration & ...


    By IWA Publishing

  • Elemental Chlorine-Free (ECF): Pollution Prevention for the Pulp and Paper Industry

    Imagine being in charge of a chemical company. One day a fire breaks out, and an employee, designated as a first responder, is killed fighting the blaze. Then OSHA investigators discover that the man died primarily because both his training and his equipment were inadequate. This scenario is why CPL 2-2.59A should put anyone who runs a HAZMAT facility into a state of introspection. These ...

  • Analysis of PCBs and Organochlorinated pesticides in river water using simultaneous Scan/MRM measurement in GC-MS/MS

    PCBs and some chlorinated pesticides are resistant to decomposition in the environment, and tend to accumulate in living organisms. As a result, they are designated as POPs (Persistent Organic Pollutants) under the Stockholm Convention. In monitoring these environmental pollutants in river water and sludge, sensitivity for the detection of trace quantities and separation from impurities in the ...

  • A compact point-of-use water purification cartridge for household use in developing countries

    Simple, low-cost household interventions are known to be effective in lowering the incidence of waterborne diseases in developing countries. However, high costs along with operational and maintenance issues have prevented the successful adoption of these interventions among the affected communities. To address these limitations, a cost-effective, gravity-driven water purification cartridge has ...


    By IWA Publishing

  • Non-intrusive site investigation (UXO, CWM concerns)

    BEACON personnel used global positioning system (GPS) equipment to map out site locations. The soil-gas data clearly identified source areas of Trichloroethene (TCE) as well as other compounds of concern. The results showed the location of chlorinated contamination, which correlated well with data from a geophysical survey. While the flux chambers were in the field, more than nine inches of rain ...

  • Bacteriological water quality compliance and root cause analysis: an industry case study

    Drinking water in England and Wales exhibits high compliance with quality regulations. Severn Trent Water (STW) rarely experiences quality failures, yet approximately half of those that do occur are for bacteriological parameters. There were 218 bacteriological non-compliances across the STW region between January 2008 and December 2011. Thirty nine percent of these were from water treatment ...


    By IWA Publishing

  • Impact of cleaning regimes on dental water unit contamination

    Microorganisms that have been identified in dental unit waterlines (DUWLs) are of concern because they can cause infections, especially in immunocompromised patients. This study aimed to assess the incidence of microbial contamination in DUWLs before and after intervention to reduce contamination, and to investigate the presence of coliforms, Escherichia coli and Pseudomonas ...


    By IWA Publishing

  • Ecological Conditioning and Optimisation of a Once-Through Cooling Water System

    For the coming decade, Dow Benelux will need antifouling treatment for its cooling water system. Hypochlorite dosing is still considered to be the best available technology (BAT). This is based on proven effectiveness, large experience, moderate costs, opportunities to further optimise the chlorination procedure, and by the fact that in earlier studies low-level ...


    By Sweco Nederland BV

  • N-nitrosamines, emerging disinfection by-products of health concern: an overview of occurrence, mechanisms of formation, control and analysis in water

    The presence of N-nitrosamines in water bodies used for drinking water purposes may present a more serious risk for humans than regulated disinfection by-products (DBPs) species. Hence, understanding and controlling the incidence of N-nitrosamines represents a contemporary challenge to the water industry. Although many of these molecules potentially formed as DBPs are detected in chlorinated ...


    By IWA Publishing

  • Household Water Treatment Options in Developing Countries: Solar Disinfection (SODIS)

    Household water treatment and safe storage (HWTS) interventions are proven to improve water quality and reduce diarrheal disease incidence in developing countries.  Five of these proven HWTS options – chlorination, solar disinfection, ceramic filtration, slow sand filtration, and flocculation/disinfection ...


    By IWA Publishing

  • High performance turbidity filter

    Turbidity in water is caused by suspended and colloidal matter such as clay, silt, finely divided natural organic matter (NOM), inorganic matter and plankton plus other microscopic organisms, according to Standard Methods 2130. Waterborne pathogens have caused significant disease outbreaks in the United States and continue to pose a significant risk. The most frequently reported waterborne ...


    By Argonide Corporation

  • Houshold Water Treatment in Developing Countries: Ceramic Filtration

    Household water treatment and safe storage (HWTS) interventions are proven to improve water quality and reduce diarrheal disease incidence in developing countries.  Five of these proven HWTS options – chlorination, solar disinfection, ceramic filtration, slow sand filtration, and flocculation/disinfection – are widely implemented in developing countries.  Organizations ...


    By IWA Publishing

  • Working with local health care staff to increase SWS uptake

    An estimated 1.1 billion persons worldwide lack access to an improved water source.  Hundreds of millions more drink contaminated water from improved sources because of unsafe water treatment and distribution systems and unsafe water storage and handling practices.  The health consequences of inadequate water ...


    By IWA Publishing

  • Mixed oxidant technology treats water in Rwanda, developing countries

    Plagued by a legacy of civil war, ethnic genocide and the HIV/AIDS epidemic, many rural communities in Rwanda lack access to adequate drinking water. Although many inhabitants purify water by boiling, this time-consuming and energy-intensive practice is impractical for most. A water and power utility provides drinking water to the capital, Kigali City, and all urban centers of Rwanda, while ...


    By MIOX Corporation

  • Water Plant’s Investment in GTI Covers Brings Both Operational and Safety Benefits

    The Utility: The Griswold Water Treatment Plant is part of Aurora Water, the utility that manages water and wastewater in the city of Aurora, Colorado, USA. This direct filtration plant treats 80 million gallons of water per day (302,800 m³/d). The Utility’s Needs: Originally built in 1965, the Griswold Water Treatment Plant had undergone ...

  • Ten Good Reasons To Build Dynamic Models

    Over the last ten years computer technology and network modelling software have developed beyond all recognition, providing the necessary hardware and software tools to assist water distribution engineers in their design and planning work utilising fully dynamic all-mains models. However, many water supply companies still make important decisions based on static models that represent an arbitrary ...


    By Innovyze

  • 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

  • Cryptosporidium – Understanding the hidden danger case study

    Understanding the problem Found in water supplies all over the globe, Cryptosporidium outbreaks are now becoming more and more frequent causing severe illness that can be fatal to vulnerable groups such as the young and elderly and in a number of cases has lead to costly and drawn out legal action. The problem is, whilst disinfection with chlorine effectively destroys other ...


    By atg UV Technology

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