uv monitoring Articles

  • Using UV Fluorescent Technology to monitor for organic pollutants

    For many years the water industry has relied on traditional sampling techniques to monitor water quality in a wide range of environments. Traditional tests such as BOD, PH, Dissolved Oxygen and Ammonia have formed the bedrock of monitoring parameters. There are however other ways to establish water quality and UV fluorescence offers an up to date solution for the investigation of ...


    By Safe Training Systems Ltd

  • Importance of Measuring UV Transmittance for UV Disinfection

    UV disinfection systems disinfect water using UV light at the 254nm wavelegnth. UV light at this wavelegnth actually destroys the DNA of microbiological material in the water which prevents dangerous viruses such as crytosporidium and e-coli from reproducing and causing harm. Real Tech has several products that are commonly used to ensure the correct operation and performance of UV disinfection ...


    By Real Tech Inc.

  • Feed-forward coagulant control using online UV/Vis monitoring

    Water quality from the Murray River, Australia, can vary considerably and is expected to become more challenging to treat due to recent drought followed by widespread flooding and future climate change impacts. Better tools are required to help plant operators maintain water quality. Morgan water treatment plant (WTP) operates overnight to take advantage of off-peak electricity, however the ...


    By IWA Publishing

  • Using UV Fluorescence technology to monitor for organic pollutants in Flood Water

    For many years the water industry has relied on traditional sampling techniques to monitor water quality in a wide range of environments.  Traditional tests such as BOD, PH, Dissolved Oxygen and Ammonia have formed the bedrock of monitoring parameters.  There is however other ways to establish water quality and UV fluorescence offers an up to date solution for the investigation of ...


    By Safe Training Systems Ltd

  • atg UV drives value & performance into ageing UV systems - Case Study

    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

  • 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. ...

  • US EPA UVGDM 2006 validated UV systems

    As micro-organisms evolve, so too does their resistance against traditional methods of treatment. atg UV has developed a range of validated systems that fully comply with the requirements of the US EPA 2006 UVDGM (worlds' strictest validation standard).  atg UV Technology has a range of UV systems that have been designed specifically for the drinking water industry, and are fully compliant ...


    By atg UV Technology

  • Use of multivariate calibration models based on UV-Vis spectra for seawater quality monitoring in Tianjin Bohai Bay, China

    A series of ultraviolet-visible (UV-Vis) spectra from seawater samples collected from sites along the coastline of Tianjin Bohai Bay in China were subjected to multivariate partial least squares (PLS) regression analysis. Calibration models were developed for monitoring chemical oxygen demand (COD) and concentrations of total organic carbon (TOC). Three different PLS models were developed using ...


    By IWA Publishing

  • UV Minimises Risks for Major Food Retailers

    For many years, one of the UK’s largest food manufacturers has made it their business to be the best at producing all manner of bespoke cooked and raw, ready-to-eat vegetables and carbohydrates for their customers, who include chilled food manufacturers, food-to-go operators and, of course, major supermarkets. Being the best means not only complying with food quality standards set by ...


    By atg UV Technology

  • Sensor Setpoint Validation of Reclaimed Water UV Reactors

    ABSTRACTReclaimed water ultraviolet light (UV) disinfection system can be a critical component of a multiple barrier approach for public health protection. Current control methodologies rely upon assumed end of lamp life factors and sleeve fouling factors, which often result in overdosing when the lamps are new and the sleeves are clean and underdosing as the lamps ...

  • Wafer Thin UV System Lights The Way

    The long awaited ‘Wafer’ design was unveiled in October at Piscina & Wellness in Barcelona, and it comes as no surprise that this revolutionary new range has already had an enormous impact within the wet leisure industry. The inclusion of chemical-free UV disinfection is now becoming standard practise for many aquatic facilities worldwide.  UV systems protect against chlorine ...


    By atg UV Technology

  • UV-radiation 1983–2003 measured at Norrköping, Sweden

    Total ozone has been monitored with high accuracy at many sites for a relative long period of time. This is not the case for UV. The main reason is that UV is difficult to measure accurately. Extensivemonitoring started first during the 1990s. However, there are some data series still in operation that were initiated at earlier dates. This paperwill discuss one such series from Norrk€oping, ...


    By Springer

  • UV systems for spas & hydro pools - Case Study

    With the rise of health centres and leisure clubs throughout the UK, a key feature in many modern facilities is the inclusion of spas and hydro pools.  As a specialist aquatic application, spas and hydro pools feature high turnover rates, high bather loads, increased turbulence and water temperatures above 35oC.  This combination of factors provides a perfect breeding ground for harmful ...


    By atg UV Technology

  • 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 ...

  • atg UV technology offer both low pressure amalgam and medium pressure UV systems

    From small scale industrial applications to large water treatment works and fully integrated PLC controlled UV packages atg UV Technology can offer a range of UV disinfection / treatment solutions to suit any application. As industry experts, atg UV can offer standard Low Pressure, Low Pressure Amalgam and high power Medium Pressure UV systems. Additionally atg UV also offer bespoke ultraviolet ...


    By atg UV Technology

  • Evaluation of photocatalytic degradation of a commercial humic acid in water using a simulated solar UV irradiation and monitoring the changes by size exclusion chromatography

    Much research has been undertaken on the photocatalytic degradation of humic substances with titanium dioxide using commercial humic acids (HA), which are extracts from either peat or coal. Most of the research has been focused on the changes in dissolved organic carbon (DOC) and UV254 absorption. These parameters only give a general assessment. This work studies the changes in the physical and ...


    By IWA Publishing

  • Case study: TOC recovery studies comparing combustion/NDIR with UV-persulfate/membrane conductometric methods for municipal raw and finished drinking water monitoring

    Objective Numerous studies have been conducted to compare the performance of various TOC methodologies on a wide range of raw source water and finished drinking water samples. The methodologies studied are those that are approved for TOC monitoring under the USEPA’s Disinfectants and Disinfection Byproducts Rule (D/DBPR). The results of these studies demonstrate that ...


    By GE Analytical Instruments

  • Water Vapor Interference in the UV Absorption Measurement of Atmospheric Ozone

    In this thesis work, a significant and sometimes large water vapor interference inherent to many and possibly all UV-based, commercially available ozone monitors was positively identified for the first time.  Depending upon the instrument's recent atmospheric history and calibration method, zone monitors can give erroneous results both immediately and hours later, and as a consequence possibly ...


    By 2B Technologies

  • UV disinfection for enhanced oil recovery and other oilfield applications

    One of the biggest challenges facing oil companies today is how to extract more oil from the discoveries made in the last 40 years. Estimates vary, but approximately 66% of the discovered oil gets left in the ground. The International Energy Agency has estimated that if, in the next 20 years, this figure could be reduced to 50%, then this would increase the world's recoverable oil by 1.2 trillion ...


    By atg UV Technology

  • The Light at the End of the Tunnel - How to Successfully Operate a UV Disinfection System

    ABSTRACTOver the past ten years, ultraviolet (UV) technology has become a commonly applied method of disinfecting of wastewater effluent. UV disinfection involves passing wastewater effluent through a confined chamber with rows of underwater lamps emitting UV energy. Viruses and bacteria become inactivated upon exposure to dosages of UV energy, thereby disinfecting the wastewater. The UV system ...

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