building disinfection Articles

  • 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 ...


    By Burns & McDonnell

  • Build up a database to determine the management of drinking water in the Province of Cartago, Costa Rica

    In Costa Rica, the majority of people have drinking water in their homes, but because of climate change along with the increase of population and non-existent planning programs, the distribution of this resource could be affected. To ensure sustainability of drinking water, information on demand and supply is required. Unfortunately, the information is outdated and there is no single unified ...


    By IWA Publishing

  • Ultraviolet disinfection systems, the best solution to school swimming pools

    School swimming pools are a valuable asset, and are now present in the majority of high schools and higher education facilities throughout the UK.  Whilst school pools vary in size, shape and usage, many school swimming facilities are facing a common dilemma in their water disinfection strategy.  Existing treatment regimes are often badly designed, under sized or simply outdated, which ...


    By atg UV Technology

  • Home, Sweet Wastewater Building

    How can a wastewater treatment plant embedded into a neighborhood not use much landmass and be environmentally friendly and user-friendly all at the same time? One system aims to do all of the above. Why should a wastewater treatment plant always have to look like, well, a wastewater treatment plant?  A visual trip through project files of Aqueonics Inc., based in Greenville, SC, reveals photos ...


    By Aqueonics, Inc.

  • Building demonstrates benefits of net-zero water reuse

    A unique research project to demonstrate the effectiveness of net-zero water use buildings is underway at the University of Pittsburgh and the Center for Sustainable Landscapes at Phipps Conservatory and Botanical Gardens in Pittsburgh. The decentralized water system at CSL treats all nonpotable water on-site. The university is documenting the benefits and costs of the novel water-reuse system, ...


    By Fluence Corporation

  • Effects of UV Ozone for air room and deep cleaning disinfection purposes Version:1.0

    According to the EPA and American Medical Association (AMA), studies indicate that indoor levels of many pollutants may be 25 times and occasionally more than 200 times higher than outdoor levels. While older buildings present the issue of a large buildup of contaminants over time, today’s buildings are built so air tight that the health risks may be even greater. According to the EPA, ...

  • 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 ...

  • Bye Bye Birdie - Protecting your Building and Employees from Pest Birds

    It seems that not a day goes by without a news story about avian flu and the possible pandemic it may cause. Concerns about the potential threat are on the forefront of Americas mind, and it has taught us to be more conscious about the way disease is transmitted. “Indeed Avian Flu is a recent concern” says Bruce Donoho owner of Bird-B-Gone, Inc, “however I believe that there is a wide range of ...


    By Bird-B-Gone, Inc.

  • Benefits of UV Transmittance (UVT) field testing for selling & servicing UV Disinfection Systems

    The Real UV254 ‘P’ series portable meters can be used to measure UV transmittance (UVT) in a number of situations, and are especially beneficial when working with small UV disinfection systems. The following cases outline two situations in which Real Tech’s portable meters are invaluable. Servicing Small UV Disinfection Systems An existing customer is ...


    By Real Tech Inc.

  • Solar disinfection and lime stabilization processes for reduction of pathogenic bacteria in sewage effluents and biosolids for agricultural purposes in Yemen

    Yemen is the least advanced country among Middle Eastern countries in sewage reuse and safety control. The current sewage effluent quality in Yemen is generally poor as none of the existing sewage treatment plants produces effluents that comply with the effluent quality regulations. There is no plan to build tertiary treatment systems. However, the oxidation and stabilization ponds are ...


    By IWA Publishing

  • Chlorate formation in water distribution systems: a modeling study

    Chlorine-based disinfection agents are known to favor the production of disinfection by-products (DBPs), whose concentrations are restricted by international guidelines to ensure a safe consumption of drinking water. Hence, it is important to understand the behavior of DBPs within water distribution networks (WDNs) to avoid users' exposure to concentrations higher than guideline values. The ...


    By IWA Publishing

  • How UV disinfection can benefit your aquatic facility - Case Study

    The London Aquatics centre saw no less than nine world records broken in what has been described as the greatest sporting event of our time.   Whilst American Michael Phelps became the worlds’ greatest Olympian, history of a different kind was being made, quietly behind the scenes in the plant rooms of the London Aquatics Centre. Whilst an established technology in the swimming ...


    By atg UV Technology

  • Cedar Treatment Facility

    In April, 2001, Seattle Public Utilities (SPU) in Seattle, Washington, awarded CH2MHill Constructors Inc., a contract for the design, permitting, construction, and long-term facility operation for the City of Seattle’s Cedar Treatment Facility Design Build Operate Project. The City of Seattle set the following, overall water quality protection goals: - Provide strong public health protection ...

  • Cheyenne Board of Public Utilities in Cheyenne, Wyoming Successfully Moves from Calcium Hypochlorite Tablets to Microclor On-Site Hypochlorite Generation

    The Cheyenne Board of Public Utilities (BOPU) operates the water and wastewater systems for the capital of Wyoming which has a population of more than 63,000. Located in the fast growing Front Range Urban Corridor, BOPU is challenged by growth, periodic water scarcity and aging infrastructure. During high demand, Cheyenne disinfects approximately 2 million gallons from well fields at an ...

  • UV Light Treatment for HVAC Systems

    Ultraviolet (UV) light can be applied to support numerous applications in a broad range of industries. In commercial paint spray booths and label manufacturing plants, UV lamps are used to streamline paint jobs and the printing of logos. Outside of such practices, the light source may also be utilized to eradicate harmful, disease-causing bacteria. Systems that rely on the light’s ability ...


    By Larson Electronics LLC

  • Mixing a 2MG Hydropillar potable tank - Case study

    Solving disinfectant residual problems and adding boosting capability. Topics: SolarBee® SB Series, solar-powered, chloramine, disinfectant boosting System Overview: Serves -38,000 City residents. Disinfectant Type: Chloramine Tank Build Information: Tank Volume (gallons): 2,000,000 Tank Type: Hydropillar, ...


    By Medora Corporation

  • From Gas to Liquid: Large-Scale Chlorination System Conversion

    Abstract A number of wastewater treatment facilities using gas disinfection have decided to convert to liquid disinfection for several reasons including safety, regulatory, security, and economic factors. An optimal technology plan should be developed to facilitate the conversion. This presentation provides a case study of a large chlorine disinfection system, and demonstrates key issues of ...

  • Ideal for onsite chlorine applications - Case Study

    Water treatment could be applied to various fields, our anodes are currently used for Sodium Hypochlorite and Electrolysis of water. Sodium hypochlorite (NaOCl) is a compound that can be effectively used for water purification. It is used on a large scale for surface purification, bleaching, odor removal and water disinfection. It can be also applied in sanitary wastewater and industrial ...


    By BioMicrobics, Inc.

  • Rainwater harvesting for Harrow Boys School

    Harrow Boys School have included a 20,000 litre rainwater harvesting system within a new build boarding house. The rainwater harvesting system will collect, filter, disinfect and distribute the harvested rainwater for re-use in W.C. ...

  • City of Albany, NEW YORK

    Since the 1930s, the City of Albany, New York, has used the 200 million gallon Loudonville open-air reservoir as a backup for the city’s primary Alcove reservoir. If the Alcove treatment plant shut downs or a water main breaks, the Loudonville reservoir could supply water to Albany’s 100,000 residents for up to ten days. This system, which uses chlorine disinfection, has served the city well ...

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