waterborne pathogen control Articles

  • On tap: recreational waterborne disease at an all-time high

    Levels of recreational waterborne disease are at their highest since reporting began in 1978, suggesting the need for interventions aimed at reducing risks in natural and treated water systems. More outbreaks are reported related to recreational  waterborne diesease than drinking water sources. Every two years the Centers for Disease Control and Prevention (CDC) publishes a report on waterborne ...

  • Waterborne microorganisms and biofilms related to hospital infections: strategies for prevention and control in healthcare facilities

    Water is the main stimulus for the development of microorganisms, and its flow has an important role in the spreading of contaminants. In hospitals, the water distribution system requires special attention since it can be a source of pathogens, including those in the form of biofilms often correlated with resistance of microorganisms to various treatments. In this paper, information relevant ...


    By IWA Publishing

  • Ceramic water filters impregnated with silver nanoparticles as a point-of-use water-treatment intervention for HIV-positive individuals in Limpopo Province, South Africa: a pilot study of technological performance and human health benefits

    Waterborne pathogens present a significant threat to people living with the human immunodeficiency virus (PLWH). This study presents a randomized, controlled trial that evaluates whether a household-level ceramic water filter (CWF) intervention can improve drinking water quality and decrease days of diarrhea in PLWH in rural South Africa. Seventy-four participants were randomized in an ...


    By IWA Publishing

  • Knowledge of measures to safeguard harvested rainwater quality in rural domestic households

    Given the possibility of waterborne diseases caused by inappropriate rainwater harvesting systems, a survey was conducted in Uganda to assess existing knowledge of both physical and non-physical measures that safeguard harvested rainwater. Households who had received rainwater tanks were assessed on issues related to harvested rainwater quality. The study shows that 84% of respondents were aware ...


    By IWA Publishing

  • Public Health - Preventing Legionellosis

    Since it was reconginsed 30 years ago, legionellosis has affected millons of people. William F McCoy, author of a new book from IWA Publishing, looks at the steps needed to mount an effective reponse to the disease. Next year marks the 30th anniversary of the 1976 American Legion convention of military veterans held in Philadelphia, Pennsylvania. It is remembered primarily not for the ...


    By Phigenics, LLC

  • Legionellosis -- Why the Problem Continues

    This year marks the 30 th anniversary of the 1976 American Legion convention of military veterans held in Philadelphia. A mysterious disease outbreak occurred that killed 34 people and debilitated nearly another 200. The media named it Legionnaires’ Disease. In early 1977, the cause of the outbreak had been proven to be a previously unknown waterborne pathogenic bacterium ...


    By Phigenics, LLC

  • 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 ...

  • A Look at the Impact of Proposed Water Standard to Prevent Legionnaires` Disease

    From the standpoint of water treatment industry experts, failure to prevent legionellosis (or Legionnaires’ Disease) is the most significant water treatment problem today. Essentially every case of the disease is the result of exposure to inadequately managed building watersystems, and both utility and potable water systems can be the source of the hazard (i.e., Legionella bacteria). In ...


    By Phigenics, LLC

  • Disease-causing bacteria made more resilient by standard water disinfection practices

    Halogenated nitrogenous disinfection by-products (N-DBPs) in water increase bacterial resistance to antibiotics, new research shows. The study found that a strain of bacteria which can cause disease in humans, Pseudomonas aeruginosa, increased its resistance to a range of different antibiotics by an average of 5.5 times after the bacteria were exposed to chemicals which form as by-products of ...

  • Shining a Light on the Food and Beverage Industry

    As published in this months edition of Process & Control, Diane White discusses how UV systems can provide a practical, power saving alternative to pasteurisation in food and beverage production Waterborne micro-organisms are responsible for adverse effects on flavour, colour, odour and shelf life of products and, of course, potential health risks to consumers. A number of emerging ...


    By atg UV Technology

  • atg UV drives value & performance into ageing UV systems

    Client: Dee Valley Water   Location: North West Description: Dee Valley Water choose atg UV to replace their ageing UV systems by retrofitting their existing infustructure. atg UV Technology were selected by Dee Valley Water to increase performance and drive value into their existing UV treatment facility by retrofiting their ...


    By atg UV Technology

  • Case study - Dee valley water

    atg UV drives value & performance into ageing UV systems for Dee Valley Water atg UV Technology were selected by Dee Valley Water to increase performance and drive value into their existing UV treatment facility by retrofitting their existing Ultraviolet disinfection treatment plant with two state of the art atg UV Technology Ultraviolet disinfection systems, ...


    By atg UV Technology

  • Profile of Ozone/Bromine Sanitation Systems for City of Tucson Municipal Pools

    Due to the inherent risks associated with the use of chlorine gas as a sanitizer for the City of Tucson’s twenty-six municipal swimming pool sites, I found myself in search of an alternative water sanitation method. The challenge was clear; find a system that would be safer to manage than gas chlorine, yet yield the same favorable sanitation and water quality results. Since all the sites ...

  • Building Sustainable Sanitation Systems

    A low cost system of resource management such as composting toilets is helping to mitigate many of Haiti’s social and ecological challenges. The Caribbean Republic of Haiti — the poorest, most environmentally degraded country in the Western Hemisphere with a population of about 10 million — is a case study in forestry and soil fertility mismanagement. A colonial ...


    By BioCycle Magazine

  • Spiral-Wound Elements for Potable Water Treatment

    Introduction Any new technology must overcome perceptions of the marketplace, which are not accurate. As a technology moves into new areas of application, new misconceptions also arise. Crossflow membrane technology is no exception. The first man-made, pressure-driven 'crossflow' membranes were made in flat sheet form. This membrane had to be configured in a device, and was first made in ...


  • How Climate Change will affect your Work Conditions

    After the major discussions regarding Climate Change this month in Paris, 5 key points of the Paris Agreement on climate change are being presented: Limiting global temperature rise to “well below” 2 C Creation of the first universal climate agreement Providing help to poorer nations Each country ...


    By SafetySmart

  • Advanced Water Treatment Technologies May Bring Purified Water to San Diego

    'In four years, half of San Diego may be filling its glasses with tap water that once ran through its toilets,' reported the San Diego Union-Tribune recently. A plan to mix 'repurified water' with the City's raw drinking water reservoir could become a reality, thanks to the wonders of water treatment technology. Such a possibility elicits various reactions including disgust, marvel and fear. ...

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