ultraviolet disinfection Articles

Terms And Definitions In Ultraviolet Disinfection

A series of recommended terms and definitions for use in ultraviolet disinfection are summarized. These terms and definitions have been harmonized with the IUPAC and SI system of nomenclature. This paper has been excerpted from a Draft Report of the International Union of Pure and Applied Chemistry (IUPAC) Working Party on Ultraviolet Disinfection. The members of that Working Party are: James ...

Jun. 21, 2007

By Hanovia Ltd - a Halma Company

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 ...

Oct. 1, 2010

By IWA Publishing

Design-build wastewater treatment plant upgrade

Client: City of Andover Completion Date: 1997 Services Provided Design-build Extended aeration Ultraviolet disinfection Nitrification/denitrification Effluent reuse SRF funding When Andover officials realized the existing plant would not meet future needs or new effluent requirements, they decided the design-build method of project delivery would produce a new wastewater ...

Sep. 19, 2009

By Burns & McDonnell

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 ...

Oct. 21, 2006

By Water Environment Federation (WEF)

Validation & DWI guidelines. your questions answered at IWEX

With atg UV systems treating in excess of 2000 m3/hr daily, Ultraviolet disinfection is no longer an ‘emerging' technology. atg UV Technology will be attending IWEX 2010, (Stand ENW3) and in addition to exhibiting their wide selection of conventional UV disinfection systems and services, technical experts will be on hand to discuss the developments in both UV technology, the subsequent ...

Apr. 1, 2010

By atg UV Technology

Disinfection Performance and Applicable Process Design Parameters of State of the Art Open Channel Vertical Format Ultraviolet Disinfection System

Ultraviolet Disinfection of varying quality wastewater effluent has been determined to be an effective alternative to the use of chemical Disinfection techniques. There are a number of alternative UV system formats available for consideration in plant and process design. The comparative strengths of various formats are examined in detail with specific attention to process efficacy, life cycle ...

Jan. 1, 2003

By Degremont Technologies - a subsidiary of Suez Environnement

Dee valley water - Case Study

atg UV Technology were selected by Dee Valley Water to refit their existing Ultraviolet disinfection treatment plant with two state of the art Ultraviolet disinfection systems, complete with dual SPECTRA control panels. North West atg UV drives value & performance into ageing UV systems for Dee Valley Water atg UV Technology were selected by Dee Valley Water to increase ...

May 20, 2014

By atg UV Technology

5 Ways UV disinfection can benefit your aquatic facility - Case Study

Whilst an established technology in the pool industry for over twenty years, the London 2012 Games were the first to include the use of Ultraviolet disinfection as part of the aquatic events water treatment strategy. Why the London Aquatics Centre has adopted UV disinfection for major sporting events such as the London 2012 Games The London Aquatics centre saw no less than nine ...

May 20, 2014

By atg UV Technology

atg UV choosen for sugar solution disinfection - Case Study

Client: SOFI Location: Dunkirk, France Description: atg UV provided UV disinfection for sugar syrup solutions based on their vast experience in the beverage production industry, providing systems for some of the world's leading brands, such as Heineken, Britvic, Thwaites and Coca-Cola. atg UV Technology, market leaders in the Ultraviolet treatment industry have supplied SOFI, atg UV's French ...

Apr. 1, 2011

By atg UV Technology

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 ...

Dec. 1, 2011

By IWA Publishing

Closed-vessel vs. open channel - Case Study

Ultraviolet disinfection is now a standard feature in most waste water treatment systems and has also been adopted by the drinking water community. UV Systems Are Fast Becoming the Treatment of Choice Ultraviolet disinfection is now a standard feature in most wastewater treatment systems. UV has also been adopted by the drinking water community, as a barrier against the ...

May 20, 2014

By atg UV Technology

Biodosimetry of a full-scale uv disinfection system to achieve regulatory approval for wastewater reuse

In order to respond to the stringent disinfection requirements for reclaimed wastewater in the United States, Ozonia North America (ONA) undertook a bioassay validation study of a lowpressure nvery high-output (LPVHO) ultraviolet (UV) disinfection system. The disinfection performance of this process technology was verified via biodosimetry in accordance with the Ultraviolet Disinfection ...

Jan. 1, 2007

By Degremont Technologies - a subsidiary of Suez Environnement

Anglian water choose atg UV for effluent treatment - Case Study

Client: Anglian Water Location: Great Billing, Special Operations Site Description: Effluent Waste Water atg UV Technology, pioneers in the design and engineering of Ultraviolet treatment systems have won supplied Anglian Water with two compact, closed chamber, Ultraviolet disinfection systems for the treatment of effluent waste water at their special operations WwTW's site located in Great ...

Apr. 1, 2011

By atg UV Technology

Glady Run and Ford Road, Wastewater Treatment Plants, Xenia, Ohio U.S.A.: Aquaray® 40 HO VLS High Output Vertical Lamp System for Wastewater

Situation In 2001, the City of Xenia, Ohio, budgeted funds in its capital program to upgrade the two wastewater treatment plants serving the city’s population of 23,000. One plant, built in 1958, treated four million gallons daily; the other, built in 1970, processed 3.7 million gallons a day. The city was seeking an alternative to the plants’ chlorine gas disinfection technology. Chlorine gas ...

Feb. 15, 2008

By Degremont Technologies - a subsidiary of Suez Environnement

Using UV to Disinfect Low Quality Wastewater

This paper discusses the issues involved in sizing ultraviolet (UV) disinfection systems for low quality water, such as those found in poor quality wastewater (primary effluents) or wet weather flows (combined sewer overflows). Discussions of UV reactor dynamics and the merits of bioassay validation are ...

Oct. 21, 2006

By Water Environment Federation (WEF)

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 ...

Mar. 1, 2010

By IWA Publishing

Urban water reuse: microbial pathogens control by direct filtration and ultraviolet disinfection

Physicochemical treatment efficiency for unrestricted urban water reuse was evaluated at a conventional activated-sludge wastewater treatment plant (WWTP). Pilot plant set-up consisted of an alum coagulation step, granular media upflow flocculation and direct downflow dual-media filtration followed by ultraviolet disinfection (dose of 95 mJ cm−2). Optimum aluminum sulfate dosage of 10 mg ...

Sep. 25, 2014

By IWA Publishing

Fisantekraal Municipal Waste Water Works, Durbanville, South Africa - Case Study

The city’s newest treatment works opened in Fisantekraal in 2012. It uses state of the art ultraviolet disinfection and is geared as a ‘zero discharge’ plant, as the treated water is piped to customers for irrigation purposes. BBR was awarded the odour control contract in 2012. Performance data illustrates that H2S removal is in excess of 99%, coupled with complete removal of ...

Aug. 8, 2018

By BBR Filtration Limited

Evaluation of treatment schemes appropriate for wastewater reuse in Greece

The scope of this paper is to propose wastewater reuse quality criteria and treatment specifications for Greece, taking into consideration reuse priorities and secondary effluent characteristics. The proposed wastewater reclamation criteria and tertiary treatment schemes were evaluated in terms of feasibility and effectiveness through lab-scale experiments. The experimental data were processed by ...

Jul. 25, 2006

By Inderscience Publishers

Next generation of UV systems to showcased at WEFTEC 2010

With atg UV Technology systems treating in excess of 5,000 m3/hr daily, Ultraviolet disinfection is no longer an ‘emerging' technology. atg UV Technology will be attending WEFTEC 2010, (Booth 1438) and in addition to exhibiting their wide selection of conventional UV disinfection systems and services, technical experts will be on hand to discuss their soon to be released new range of UVLX ...

Aug. 1, 2010

By atg UV Technology

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