air disinfection Articles

  • How To Keep Your Tablet Press Clean

    10 Easy Steps for Cleaning Your Tablet Press Nothing can slow production down like equipment that malfunctions or stops working altogether. Performing regular, preventative maintenance of equipment is essential and helps keep pharmaceutical tablet presses functioning efficiently and smoothly. ...

  • 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, ...

  • 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

  • Sustainable, Low-maintenance Disinfection for Onsite Systems

    Most of the regulations applicable for onsite wastewater treatment system are based on the use of native soil for effluent dispersal. However, there are more and more situations where dispersal of effluent in native soil is impossible: repairs of existing systems on undersized lots for implementation of required dispersal fields: sites located in soils having low permeability: or where the ...


    By Premier Tech Aqua

  • Factors Affecting Disinfection and Stabilization of Sewage Sludge

    ABSTRACTEffective disinfection and stabilization of sewage sludge prior to land application is essential to not only protect human health, but also to convince the public of its benefits and safety. A basic understanding of the key factors involved in producing a stable biosolid product is a necessary component to ensuring that effective disinfection and stabilization are achieved. Key stressors ...

  • Closed vessel or open channel UV disinfection systems

    Ultra violet disinfection is now a standard feature in most waste water disinfection systems. UV has also been adopted by the drinking water community, as a barrier against the chlorine tolerant species such as Cryptosporidium and Giardia. The technology is widely favored due to its non- chemical nature, the fact that no subsequent de-chlorination process is required, and its ability to be ...


    By atg UV Technology

  • Key Operating Strategies for Chlorine Disinfection Operating Systems

    ABSTRACTChlorine has been used as a standard for disinfecting wastewater for many years. While being the standard There are many levels of automation for control of disinfection. To select the best control approach for your facility both control strategies and chlorination chemistry must be understood. Permit conditions must also be fully identified; organism concentrations and operational data. ...

  • 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

  • Legionnaires is an Air Quality Risk

    The recent Bronx, NY outbreak of Legionnaires infections is a grim reminder of the deadliness of this strain of pneumonia. Like many of the outbreaks, cooling towers caused this one. Twenty have been identified but the search is still going on. Over 120 people were infected and 12 have died. Tragically it affects the most vulnerable people–people with one or more immune system deficiencies. ...


    By ProMark Associates, Inc.

  • What chemicals are used in my sterilizer or high-level disinfectant equipment?

    Do you know the chemicals used in low-temperature sterilizers or high-level disinfectant equipment that you use every day? Here is a quick, high-level guide with some of the most common brands and chemicals used in them. Low-Temperature Sterilizer Brands, Chemicals and Concentrations ...


    By ChemDAQ, Inc.

  • Use of CFD Modelling to Optimise the Design of Upper-room UVGI Disinfection Systems for Ventilated Rooms

    AbstractThe installation of upper-room ultraviolet germicidal irradiation (UVGI) devices in ventilated rooms has the potential to reduce transmission of infections by an airborne route. However, the performance of such devices is dependant on several factors including the location of the lamp and the ventilation airflow in the room. This study uses a CFD model to evaluate the performance of UVGI ...


    By SAGE Publications

  • Importance of Air & Water Testing in Indoor Pools

    Have you ever wondered why your eyes hurt or why you have a cough after swimming at an indoor pool? We all assume that it’s from too much chlorine in the pool but that is false! If the pool staff doesn’t regularly test and monitor both the air and water indoors, the environment becomes very toxic and unsafe to everyone in the building. Water is an essential ingredient for all life as ...

  • Comparing environmental impacts of tertiary wastewater treatment technologies for advanced phosphorus removal and disinfection with life cycle assessment

    Different technologies for tertiary wastewater treatment are compared in their environmental impacts with life cycle assessment (LCA). Targeting very low phosphorus concentration (50–120 μg/L) and seasonal disinfection of wastewater treatment plant (WWTP) secondary effluent, this LCA compares high-rate sedimentation, microsieve, dual media filtration (all with UV disinfection), and ...


    By IWA Publishing

  • Monitoring Ozone (in the air) in Hatchery & Fish Farm Ozone Injection Systems

    Hatcheries, fish farms and such in the aquaculture industry require clean water to maintain a high survival rate while rearing aquatic animals. Contaminated water increases the risk of infection which in turn can compromise production. A common way to disinfect water is by generating ozone on-site with an ozone generator, which is commonly inside an ozone generator room. For human safety, ...

  • Application of an optimized system for the well-defined exposure of human lung cells to trichloramine and indoor pool air

    In this study an in vitro exposure test to investigate toxicological effects of the volatile disinfection by-product trichloramine and of real indoor pool air was established. For this purpose a set-up to generate a well-defined, clean gas stream of trichloramine was combined with biotests. Human alveolar epithelial lung cells of the cell line A-549 were exposed in a CULTEX® device with ...


    By IWA Publishing

  • Santa Cruz Meets THM/DBP Challenge with Unique Air Stripping Process - Case Study

    Summary Santa Cruz has successfully demonstrated an innovative way for the City to meet its water quality goals while using process recycled water as part of its supply source. Using the recycled water had caused concern about reliably meeting the U.S. EPA THM/DBP potable water quality standards in its finished water. The City evaluated various aeration treatment processes and chose an E-Z ...

  • Impact of Water Quality and Pretreatment upon UV Inactivation of MS-2 Bacteriophage in Combined Sewer Overflow

    The disinfection of MS-2 bacteriophage by low pressure and medium pressure UV was evaluated in three different source waters: raw wastewater, storm water runoff and a synthetic combined sewer overflow prepared from a 50:50 mix of raw wastewater and storm water runoff. Each of the source waters were pretreated by dissolved air floatation and vortex separation prior to UV exposure. Source water and ...

  • 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

  • Closed-vessel vs.open channel - Case Study

    Ultraviolet disinfection is now a standard feature in most waste water treatment systems. UV has also been adopted by the drinking water community, as a barrier against the chlorine tolerant species such as Cryptosporidium and Giardia. The technology is widely favoured due to its non-chemical nature, the fact that no subsequent de-chlorination process is required, and its ability to be ...


    By atg UV Technology

  • The Application of Ultraviolet Germicidal Irradiation to Control Transmission of Airborne Disease: Bioterrorism Countermeasure

    Synopsis Bioterrorism is an area of increasing public health concern. The intent of this article is to review the air cleansing technologies available to protect building occupants from the intentional release of bioterror agents into congregate spaces (such as offices, schools, auditoriums, and transportation centers), as well as through outside air intakes and by way of recirculation air ...


    By E-CO

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