water disinfection technology Articles

  • UV technology - unique in water disinfection

    Due to its undisputable Success &  Efficiency in destroying Cryptosporidium and Combined Chlorine, The Centers for Disease Control and Prevention Recommend installing UV Systems It has taken many years of testing to convince the pool market that the most reliable and best available option for treating and disinfecting water is through using Ultraviolet (UV) technology. UV systems ...


    By ESCO International

  • Low energy mixing to optimize anaerobic digestion at the Kitchener WWTP

    The existing Kitchener Wastewater Treatment Plant (WWTP) is a conventional secondary treatment facility, with a rated capacity of 122,745 mVd. The plant is comprised of two separate secondary treatment plants (Plant 1 and Plant 2) served by a common headworks facilities and primary clarifier facilities. Plant 1 was constructed in the early 1960s and Plant 2 was constructed in the mid-1970s. Both ...

  • The Challenge of the Future: Operating Emerging Disinfection Technologies

    ABSTRACTThe Clean Water Act (1972 and 1977) established the basis for regulating pollutant discharges into the waters of the United States. This Act contains many provisions regulating pollutant discharges and surface water quality in the United States. This act has also been modified by numerous revisions and amendments since it was enacted in 1972. The National Pollutant Discharge Elimination ...

  • A comparison of disinfection performance and cost for various process combinations to disinfect reclaimed water

    For reclaimed water disinfection, pathogen reduction to acceptable public health risk levels is the primary objective. A second emerging objective is the ability to destroy trace pollutants (endocrine disrupters (EDCs), pharmaceutically active compounds (PhACs)) at a reasonably low cost. The WateReuse Foundation’s Innovative Reclaimed Water Treatment Project (WRF 02-009) is searching for ...

  • An antimicrobial polycationic sand filter for water disinfection

    A new sand filtration water disinfection technology is developed which relies on the antimicrobial properties of hydrophobic polycations (N-hexylated polyethylenimine) covalently attached to the sand's surface. The efficacy of the filter disinfection process was evaluated both with water spiked with E. coli and with real aqueous effluent from a wastewater treatment plant. For the ...


    By IWA Publishing

  • Supreme hotel relies on supreme water disinfection by Grundfos

    Kempinski Hotel Zografski is a 5-star hotel located in Lozenets, near downtown Sofia, Bulgaria. It is one of the most luxurious hotels in the capital of Bulgaria. It has 442 guest rooms, 10 conference rooms, 5 restaurants, 3 bars and the only Japanese garden in the Balkans. The hotel was built between 1974 and 1979 to the design of leading Japanese architect Kisho Kurokawa (1934 - 2007) in the ...


  • Treating Taste & Odor and Disinfecting Drinking Water with UV

    Cornwall is a city of nearly 60,000 people in Ontario, Canada. It is located on the St. Lawrence River, approximately 1,700 km from the Atlantic Ocean and 2,000 km from Lake Ontario. The city draws its drinking water from the St. Lawrence, a reliable and generally good-quality source. However, in the late summer and early fall, dying algae from algae blooms during the warmest months often ...

  • Emerging Trends In UV Disinfection For Water Treatment

    Introduction The UV disinfection industry has experienced tremendous growth over the last 20 years.  The development of new UV technologies over this period has been a perfect example of an industry investing to meet market demand – in this case demand for an effective, low cost, and environmentally friendly disinfection technology.  The acceptance of UV disinfection at water plants ...

  • New DWI guidelines for UV drinking water disinfection

    atg UV, has seen increasing interest in the application of UV systems for the treatment of drinking water applications since the UK Drinking Water Inspectorate (DWI) released their ‘Guidance on the use of Ultraviolet (UV) Irradiation for the Disinfection of Public Water Supplies' February 2010. With systems treating in excess of 2000 m3/hr daily, Ultraviolet disinfection is no longer an ...


    By atg UV Technology

  • Health effects of disinfection by-products in Australian drinking waters

    The disinfection of drinking water has greatly diminished the occurrence of diseases known to be caused by water-borne pathogens, but technological advances subsequent to the initial discovery of chloroform in 1974 have enabled the identification of a plethora of Disinfection By-Products (DBPs), particularly trihalomethanes (THMs), that may have injurious health effects on humans. DBPs are widely ...


    By Inderscience Publishers

  • Effectiveness and Kinetics of Ferrate as a Disinfectant for Ballast Water

    The objective of the study was to determine whether ferrate could meet the international standards for successful ballast water treatment, including final concentrations of less than 1 CFU/ml of Enterococci, less than 2.5 CFUs/ml of Escherichia coli, and less than 1 CFU/100 mls of Vibrio cholerae. Pure cultures of Escherichia coli, Klebsiella pneumoniae, and V. cholerae, and a mixed culture of ...

  • Development of point-of-use water disinfection technology using ceramic water filter and electrochemical hybrid system

    The efficiency of water disinfection using a ceramic water filter and electrochemical hybrid system was investigated. Escherichia coli O157:H7 was effectively inactivated even when a storage battery, charged using a solar panel device, was used for the electrolysis process. During electrolysis, the rate of microbial inactivation was higher at higher initial Cl− ...


    By IWA Publishing

  • Inactivation of human adenovirus by sequential disinfection with an alternative UV technology and free chlorine

    There has been growing concern over human exposure to adenoviruses through drinking water due to the extreme resistance of human adenoviruses to the traditional UV technology (low-pressure (LP) UV). As an effort to develop an effective treatment strategy against human adenoviruses in drinking water, we determined the effectiveness of sequential disinfection with an alternative UV technology ...


    By IWA Publishing

  • Wastewater Disinfection Technology Evaluation: From the Public Health and Security Perspectives

    This paper will compare alternative wastewater disinfection technologies based on the security vulnerability and the production of disinfection by-products while considering the effectiveness, reliability and cost of each technology. Increasing public attention and tighter regulation on DBPs, along with perception of security vulnerability on the existing chlorination systems, require more ...

  • Operations and maintenance requirement of vortex with disinfection and screening with disinfection cso facilities

    ABSTRACT Technologies such as screening, vortex and high-rate disinfection are successfully operating to meet CSO requirements at satellite locations through the County. Owing to the sporadic nature of CSO, such facilities have been designed with the objective of simplicity and reliability with minimal operational attention. This paper will report on the operational and maintenance ...

  • Evaluation of ultrasound technology for the disinfection of process water and the prevention of biofilm formation in a pilot plant

    In this study, we investigated the use of ultrasound for the disinfection of process water as an alternative for more traditional techniques, like chlorination and UV-irradiation. A pilot plant was constructed to mimic circulating process water in industrial environments. The disinfection efficiency of ultrasound was assessed and compared to UV-treatment and chlorination. In addition, the ...


    By IWA Publishing

  • Grundfos reference – disinfection case study

    First SELCOPERM unit installed within the Czech Republic to serve for potable water disinfection through the electrical chlorination method ŽLUTICE, Czech Republic: 1/3 of the total capacity of the waterworks at Žlutice has been designed for supplying drinking water to a group of communities found within the catchment area of Žlutice (approximate population of 14,000), the remaining 2/3 ...


  • Lighting the way for disinfection - Case study

    Pharmaceuticals manufacturing involves the handling of powders and volatile, flammable solvents such as iso-propanol. Consequently there is every opportunity for explosive atmospheres to form. Where this is the case, the Dangerous Substances and Explosive Atmospheres Regulations 2002 (DSEAR) require that new equipment and protective systems must be selected on the basis of the requirements set ...


    By atg UV Technology

  • 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. ...

  • Ozone as a Disinfecting Agent in The Reuse Of Wastewater

    More and more countries are taking measures to reuse wastewater. This has been prompted by the ever decreasing availability of good quality raw water and the increasing cost of producing potable water. Disinfection is a major treatment step in the direct reuse of reclaimed wastewater to ensure environmental and public health protection. “Disinfection is the destruction, inactivation or removal of ...

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