tablet chlorination system Articles

  • Cheyenne Board of Public Utilities in Cheyenne, Wyoming Successfully Moves from Calcium Hypochlorite Tablets to Microclor On-Site Hypochlorite Generation

    The Cheyenne Board of Public Utilities (BOPU) operates the water and wastewater systems for the capital of Wyoming which has a population of more than 63,000. Located in the fast growing Front Range Urban Corridor, BOPU is challenged by growth, periodic water scarcity and aging infrastructure. During high demand, Cheyenne disinfects approximately 2 million gallons from well fields at an ...

  • Sustained effectiveness of automatic chlorinators installed in community-scale water distribution systems during an emergency recovery project in Haiti

    In 2012 and 2013, as part of relief-to-recovery programming, Child Relief International partnered with Haiti Philanthropy to install automatic tablet-based chlorinators in 79 gravity-fed water distribution systems in Southeast Department, Haiti. We carried out a mixed methods evaluation to assess sustained effectiveness of chlorinators approximately two years after installation, including 18 ...


    By IWA Publishing

  • A Regulatory Perspective on Maintenance of Disinfection Systems

    ABSTRACTThe Clean Water Act contains requirements to set water quality standards for all contaminants, including bacterial contaminants, in surface waters. Wastewater treatment cannot be expected to remove all of the bacterial contaminants, and as a result, many organisms remain in the waste stream. Therefore, disinfection of treated wastewaters is designed to reduce bacterial numbers to a safe ...

  • Development and evaluation of a small scale water disinfection system

    Provision of microbiologically safe drinking water for people living in the rural areas of developing countries remains a major challenge to date. A simple gravity-driven membrane point of use system was developed based on woven fabric microfiltration (WFMF) membranes. The WFMF is a loose type of membrane (0.45 μm). However, complete disinfection is not achieved with the WFMF, hence it was ...


    By IWA Publishing

  • Blue-White's Flex-Flo A3 Peristaltic pumps in sodium hypochlorite applications

    The use of peristaltic pumps as the most effective method to pump sodium hypochlorite in water treatment plant applications.   Tube life averages 7000-7500 hours in this low pressure application illustrated below: The quality of life for Americans was greatly enhanced in the early 1900’s due to the introduction of chlorinated drinking water throughout the United States water ...


  • Factors involved in sustained use of point-of-use water disinfection methods: a field study from Flores Island, Indonesia

    Many scientific studies have suggested that point-of-use water treatment can improve water quality and reduce the risk of infectious diseases. Despite the ease of use and relatively low cost of such methods, experience shows the potential benefits derived from provision of such systems depend on recipients' acceptance of the technology and its sustained use. To date, few contributions ...


    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 ...

  • Influence of solar water disinfection on immunity against cholera – a review

    Cholera remains a problem in developing countries. This is attributed to the unavailability of proper water treatment, sanitary infrastructure and poor hygiene. As a consequence, countries facing cholera outbreaks rely on interventions such as the use of oral rehydration therapy and antibiotics to save lives. In addition to vaccination, the provision of chlorine tablets and hygiene sensitization ...


    By IWA Publishing

  • A new look at Bromine - a potential sleeping giant?

    The daunting challenge By now, most in the international drinking water industry are very familiar with the UN Millennium Development Goal to reduce by half the number of people lacking daily access to safe drinking water by 2015 and that the majority of the world’s 1.1 billion in greatest need are living in developing and under-developed countries. In some of the developing ...


    By DelAgua Group

  • Decorative pond installation - Case Study

    The Installation: Disinfection of a Pond size 53m² with a volume of 16m³ of water in front of an office building. The Problem: The pond had become heavily infested with Algae and was an eyesore in addition the oxygen levels in the pond had fallen due to anaerobic bacterial activity creating an unpleasant smell. The picture below shows stones with a layer ...


    By Danish Clean Water A/S

  • Why Everyone Should Drink Filtered Water

    Your body is made up of a lot of water; 60 to 65 percent to be exact. The water that you drink each day helps to replenish your body and give you strength. But, if you’re drinking water that contains heavy amounts of chemicals, metals, and other harmful ingredients, what does that say about your body composition? Untreated water could be responsible for a number of different health and ...

  • Alaska - Anadarko Oil Camp case study

    The "North Slope" of Alaska is one of the harshest environments in the world to survive in, let alone work in, on a daily basis. Temperatures can reach -70 degrees F and wind chill factors can reach -100 degrees F. The "Slope" is home to thousands of oilfield workers, many of who live in portable camps located in extremely remote locations. In such an environment, equipment must be reliable, ...


    By Quanics Incorporated

  • Buy Smarter – what questions should you ask when buying a Spectrophotometer?

    Spectrophotometers are relied on by a wide range of laboratories, for tests ranging from specific parameters, like chlorine or metals concentrations, right through to complex analyses of reaction kinetics. When choosing a spectrophotometer the range of specifications and price is vast, so take the time to list the features you need before you buy and make sure you choose the right one. ...


    By Camlab Limited

  • Bacteria-free water - without the use of toxic chemicals - Case Study

    Aarhus University Hospital fought against Legionella bacteria – and won Legionella bacteria thrives in all hot-water supplies and Aarhus University Hospital, Risskov felt the problem firsthand. With the ECA generator from Danish Clean Water A/S they managed to significantly reduce the bacteria and thereby minimizing risks concerning Legionella. Virtually all hospitals, ...


    By Danish Clean Water A/S

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