water ultraviolet system Articles

  • Unique Ozone and Ultraviolet Water Treatment System

    Euroby Ltd, the sludge treatment specialists, are pleased to announce the signing of an agreement to be the sole UK and Ireland distributor for the unique UVOX range of water treatment  systems.UVOX, as the name suggests, uses a combination of Ultraviolet and Ozone to treat infected and polluted water.Its uniqueness stems from its novel method of first producing ozone by irradiating air with a ...


    By Euroby Limited

  • Is Ultraviolet Ultra Safe?

    With retailers under pressure to meet increasing health and safety standards, it’s no surprise that many of our food & products are coming into contact with Ultraviolet (UV) radiation which is gradually becoming common as a cost effective method of reducing or eliminating pathogens Ultraviolet wavelengths are classified into three general areas: UV-A, UV-B and UV-C. These can be used in ...


    By Alpha-Purify

  • Computational modeling of ultraviolet disinfection

    The efficient design of ultraviolet light (UV) systems for water and wastewater treatment requires detailed knowledge of the patterns of fluid motion that occur in the disinfection channel. This knowledge is increasingly being obtained using Computational Fluid Dynamics (CFD) software packages that solve the equations governing turbulent fluid-flow motion. In this work, we present predictions of ...


    By IWA Publishing

  • Inactivation of Cryptosporidium parvum by Medium-Pressure Ultraviolet Light in Finished Drinking Water

    The inactivation of Cryptosporidium parvum in finished drinking water by medium-pressure UV light (200-300 nm) has been investigated at both the bench scale, using a collimated beam apparatus, and at the demonstration scale, using a Calgon Carbon Corporation Sentinel™ system at the Mannheim Water Treatment Plant, Kitchener, ON, Canada. The viability of the oocysts was assessed using both in vitro ...

  • Inactivation of Cryptosporidium parvum by Medium-Pressure Ultraviolet Light in Finished Drinking Water

    Untitled Document The inactivation of Cryptosporidium parvum in finished drinking water by medium-pressure UV light ...


    By Calgon Carbon Corporation

  • Disinfection performance testing of high-efficiency ultraviolet water treatment chamber

    When introducing a disinfection product which incorporates new technology, it is essential that the methods and testing used to quantify the performance of those systems follow protocols which are technically sound and which are accepted by the scientific and technical community within the industry. These protocols must be applied precisely and rigorously in order to ensure accurate, repeatable ...


    By NeoTech Aqua Solutions, Inc.

  • Theoretical operation of high-efficiency ultraviolet water treatment chamber

    The NeoTech Aqua ReFleX water purification chambers are the most efficient and compact units  available today. They require an order of magnitude less energy and less than 25% of the system  volume to achieve the same or better purification result as competing chambers. This is the first in a  series of three white papers explaining the benefits of these systems. This paper ...

  • Illuminating Ultraviolet Disinfection for High-Level Reuse in Florida

    Chlorine has been the mainstay of the wastewater disinfection industry for more than 100 years due to its effectiveness, low cost and availability. However, due to various problems associated with chlorine, the Hillsborough County, Florida Water Resource Services Department decided to replace the high-level reuse water chlorine gas disinfection system at the Valrico Advanced Wastewater Treatment ...

  • Blue Heron Ultraviolet Stormwater Management System case study

    Horry County Engineering Department Myrtle Beach, South Carolina, USA Even a single day of beach closure has a major impact on the tourist-dependent economy of beach communities. To reduce beach closures in Myrtle Beach, HDR used ultraviolet (UV) light to treat stormwater runoff to reduce pathogens prior to discharge to the ocean. The system uses disinfection ...


  • Responses of wheat (Triticum aestivum) and turnip (Brassica rapa) to the combined exposure of carbaryl and ultraviolet radiation

    The increase of ultraviolet radiation reaching the Earth's surface due to the increase of ozone layer depletion have affected crop production systems, and in combination with pesticides used in agricultural activities can lead to greater risks to the environment. The impact of ultraviolet radiation and carbaryl singly and in combination on Triticum aestivum (wheat) and Brassica rapa (turnip) ...


    By John Wiley & Sons, Ltd.

  • Effects of natural organic matter and nitrate on the behavior of nitrosodimethylamine during ultraviolet irradiation and chloramination

    Nitrosodimethylamine (NDMA), a potent carcinogen, is found in natural and engineered water systems. Ultraviolet (UV) treatment is potentially a useful tool for controlling NDMA at water purification plants. However, a recent study has reported that UV/advanced oxidation process (AOP) treatment may provide a source of NDMA precursors. Therefore, we investigated the effect of UV treatment on the ...


    By IWA Publishing

  • Types of Water Treatment Systems

    There are different types of water treatment systems, and knowing the difference between them can help you make an informed decision on just what type of treatment you’ll need for your water. There is no best water treatment system that will meet everyone’s needs—each system has its benefits and deficiencies. Here are a few ...

  • Self-Cleaning Filters for Pretreatment of Membrane and UV Water Treatment Systems

    The removal of suspended solids is necessary to protect membrane systems and prevent the “shadow effect” in ultraviolet (UV) treatment systems. Recent field data has shown the effectiveness of automatic self-cleaning filters in removing suspended solids down to less than 3 microns in size without flocculants, pre-coats or granulated media. Tests have demonstrated the complete removal of particles ...

  • UV Systems for Reclaimed Water Disinfection – From Equipment Validation to Operation

    The Sanitation Districts of Los Angeles County (Districts) operate seven tertiary water reclamation plants (WRPs) with a combined treatment capacity over 200 million gallons per day (MGD). Although chloramination has provided reliable and effective disinfection, the Districts decided to change this disinfection practice at one of the WRPs to ultraviolet (UV) irradiation to minimize ...

  • Evaluating a composite cartridge for small system drinking water treatment

    A pilot-scale evaluation was conducted at the U.S Environmental Protection Agency (EPA) Test & Evaluation (T&E) Facility in Cincinnati, Ohio, on a multi-layer, cartridge-based system that combines physical filtration with carbon adsorption and ultraviolet (UV) light disinfection to serve as a home-base water treatment security device against accidental or intentional contaminant events. The ...


    By IWA Publishing

  • Rand water - Case Study

    Client: Rand Water, South Africa   Location: Zuurbekom, Gauteng, South Africa Description: Potable Drinking Water atg UV Technology, pioneers in the design and engineering of Ultraviolet treatment systems have supplied Rand Water, South Africa's largest supplier of potable water to the Gauteng area with a state-of-the-art compact, ...


    By atg UV Technology

  • What methods of disinfecting water are there?

    The aim behind disinfecting water is to make it safe to drink. As the water experts, NW Solutions will look at some of the different methods to disinfect water and their advantages and disadvantages. To be considered for this list, the disinfectant must: Destroy all types of pathogens, regardless of volume, present in the water Not make the water toxic or render it ...


    By NW Solutions

  • Virus contamination from operation and maintenance events in small drinking water distribution systems

    We tested the association of common events in drinking water distribution systems with contamination of household tap water with human enteric viruses. Viruses were enumerated by qPCR in the tap water of 14 municipal systems that use non-disinfected groundwater. Ultraviolet disinfection was installed at all active wellheads to reduce virus contributions from groundwater to the distribution ...


    By IWA Publishing

  • Supply system factors associated with microbiological drinking water safety in regional New South Wales, Australia, 2001–2007

    Aim: To determine factors associated with microbiological safety of public drinking water systems in regional New South Wales (NSW), Australia. Method: We analysed 107,000 end-user drinking water samples for an association between detection of Escherichia coli and drinking water system features, sample year and season using NSW Health Drinking Water Monitoring Program data, 2001–2007. We used ...


    By IWA Publishing

  • Dee valley water - Case Study

    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

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