air treatment system Articles

  • E-Z Trays an Integral Part of Levelland`s Groundwater Treatment - Case Study

    QED E-Z Tray® Air Strippers an Integral Part of Levelland's Groundwater Treatment System The refinery at the former Motor Fuels Corporation produced all grades of gasoline, tractor fuels, diesel, distillate products, and fuel oils. It closed in 1954 after 15 years of operation, and the refinery equipment was removed by 1958. The property has since been redeveloped, but the ...


    By QED Environmental Systems

  • Combining surface aeration and diffused aeration improves chemical effluent quality

    “The greatest advantage we see with the Aire-O2 Tritons, is the aeration tank does not need to be emptied in order to maintain the equipment; saving us both time and resources and with no interruption to production.” Overview Daurala Organics Limited, a chemical producer in Daurala, India, manages 1600 m3/d flow in their activated sludge process plant. Daurala has ...

  • Treating drinking water with 99% removal - Case Study

    QED E-Z Tray® Air Stripper Treating Drinking Water with 99% Removal in Cedarburg, Wisconsin In October 2011, the Cedarburg, Wisconsin Light and Water Utility installed a QED E-Z Tray® (U.S. Patent Number 5,518,668) Air Stripper in a discreet addition to their existing production pump building. The E-Z Tray 72.6 handles a flow rate of ...


    By QED Environmental Systems

  • 10 Reasons why you should continuously monitor low temperature and liquid chemical sterilants for worker safety

    1. Sterilant chemicals are highly toxic Low temperature and liquid chemical sterilants are designed to kill all microorganisms including resistant spores and if they were not toxic, they would not be effective in sufficiently high concentration to destroy all microbial life including the chemically resistant sporicidal forms of certain ...


    By ChemDAQ, Inc.

  • Desalination membrane water treatment system for Lajes US Air Force

    GEA designed and provided a Desalination Membrane Water Treatment System for the US Air Force Lajes Field Water Treatment Plant, located in the Azores. The Membrane System capacity is 1.1 MGD (4.2 million m³/day) and consists of twenty (20) 8-inch diameter pressure vessels arranged with 14 pressure vessels in the first pass followed by six pressure vessels in the second pass. There are 120 ...


    By GEA ENGINEERING

  • The development and application of the hybrid centrifugal - dissolved air flotation system for wastewater treatment

    Abstract Solid/liquid separations are integral part of any wastewater treatment system. Particles heavier than water are commonly separated in sedimentation clarifiers. On the other hand, particles with densities lower than that of water are most often separated with flotation systems. This manuscript describes the development of hybrid centrifugal - dissolved air flotation system. The ...

  • Wastewater Treatment: Dissloved Air Flotation (DAF)

    Wastewater Treatment:  Dissolved Air Flotation (DAF) Filtration leads to water savings.  DAF pretreatment in the food industry can provide sustainable water cost savings.  Stuart Ward of Process Engineered Water Equipment, LLC explains efficient filtration is key.  Columbus Salame, South ...


  • Venting your Sewage Treatment System

    The venting for the BIOROCK Sewage Treatment System is probably the key point of the system. The venting is specific to your site; again, why we emphasize the service of a certified recommended installer to install the BIOROCK Sewage Treatment Plant correctly. BIOROCK Venting Guidelines However, there are some simple tricks to follow in order that the continuous draft of air necessary to ...


    By BIOROCK S.à.r.l

  • Air systems at a food storage warehouse

    This is a treatment of air systems at a warehouse that stores and redistributes food for 7-Eleven. The customer observed a reduction in electricity bills. However, what was more impressive and valuable for the customer is that the space cooled faster because the air was colder (but not ice cold!). This colder air meant the warehouse could process more food in a day. That resulted in increased ...


    By Power Knot LLC

  • Nitrification processes in scrubbing liquid of an exhaust air treatment system of a large-scale pig housing facility

    The use of multi-staged exhaust air treatment systems is an effective method of substantially reducing the emission of ammonia, dust particles and odorous substances. Wet filter walls are able to absorb large amounts of ammonia when scrubbing fluid containing sulphuric acid is used. In addition, due to their large surface areas and the permanent supply of oxygen and nutrients, wet filter walls ...


    By IWA Publishing

  • Characterization of microbial communities in exhaust air treatment systems of large-scale pig housing facilities

    Exhaust air treatment has gained importance as an essential factor in intensive livestock areas due to the rising emissions in the environment. Wet filter walls of multi-stage exhaust air treatment systems precipitate gaseous ammonia and dust particles from exhaust air in washing water. Microbial communities in the biomass developed in the washing water of five large-scale exhaust air treatment ...


    By IWA Publishing

  • Land Treatment

    Introduction Land Treatment is a full-scale bioremediation technology in which contaminated soils, sediments, or sludges are turned over (i.e., tilled) and allowed to interact with the soil and climate at the site. The waste, soil, climate, and biological activity interact dynamically as a system to degrade, transform, and immobilize waste constitutes. Wastes are periodically tilled to aerate the ...

  • The development and application of centrifugal flotation systems in wastewater treatment

    Flotation as a wastewater treatment technique is designed to remove all particles generally encountered as very fine emulsions, suspended solids, and colloids from wastewater. Historically, Dissolved Air Flotation (DAF) has been used to achieve this removal. More recently, other flotation techniques such as induced air, electro, cavitational, and Centrifugal Flotation Systems (CFS) have been ...


    By Inderscience Publishers

  • Dissolved air flotation separation for pretreatment of membrane bioreactor in domestic wastewater treatment

    Due to requiring higher water quality standards over time, new technologies are being employed for wastewater treatment. Dissolved air flotation (DAF) and membrane bioreactor (MBR) technologies are widely employed as new technologies in wastewater treatment. DAF is used due to its excellent separation capability of suspended solids as well as oily material. MBR is used because it may provide a ...


    By IWA Publishing

  • Common Treatment Technologies for Halogenated VOCs in Air Emissions/ Off-Gases

    Three technologies that are most commonly used to treat halogenated VOCs in air emissions/off-gases are carbon adsorption, catalytic oxidation, and thermal oxidation. Carbon adsorption is a remediation technology in which pollutants are removed from air by physical adsorption onto the carbon grain. Carbon is 'activated' for this purpose by processing the carbon to create porous particles with a ...

  • Common Treatment Technologies for Nonhalogenated VOCs in Air Emissions/Off-Gases

    Three technologies that are most commonly used to treat nonhalogenated VOCs in air emissions/off-gases are carbon adsorption, catalytic oxidation, and thermal oxidation. Carbon adsorption is a remediation technology in which pollutants are removed from air by physical adsorption onto the carbon grain. Carbon is 'activated' for this purpose by processing the carbon to create porous particles with ...

  • Using Air Strippers for Off-gas Treatment - Case Study

    Two pharmaceutical plants in Puerto Rico used large sequencing batch reactor (SBR) systems to treat their wastewater. The primary treatment was an aerobic bio breakdown of the waste. The were forced to change their treament process because of change in treatment regulations. The new regulations required them to treat off-gas that was coming from the SBRs. They were faced with installing a very ...


    By QED Environmental Systems

  • The development and application of centrifugal flotation systems in wastewater treatment

    Abstract: Flotation as a wastewater treatment technique is designed to remove all particles generally encountered as very fine emulsions, suspended solids, and colloids from wastewater. Historically, Dissolved Air Flotation (DAF) has been used to achieve this removal. More recently, other flotation techniques such as induced air, electro, cavitational, and Centrifugal Flotation Systems (CFS) have ...

  • H2S Oxidation System for Water Treatment Facilities

    A new water treatment facility in the town of Jupiter, Florida, was causing a serious odor problem. H2S removed from the purified water was being released into the atmosphere. Complaints about the odor came from the residences and businesses downwind of the treatment plant. A turnkey LO-CAT® Hydrogen Sulfide Oxidation System designed to process 30,000 CFM of air containing 250 ppm of H2S ...


    By Merichem Company

  • Strategies for the reduction of Legionella in biological treatment systems

    A community-wide outbreak of Legionnaire's disease occurred in Warstein, Germany, in August 2013. The epidemic strain, Legionella pneumophila Serogruppe 1, was isolated from an industrial wastewater stream entering the municipal wastewater treatment plant (WWTP) in Wartein, the WWTP itself, the river Wäster and air/water samples from an industrial cooling system 3 km downstream of the WWTP. ...


    By IWA Publishing

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