Off-Gas Articles

  • Molecular gas filtration: chemisorption versus physisorption

    Advantages of chemisorption over physisorption in molecular gas filtration. To remove pollutant compounds in air, both spherical and pelletized solid products are widely used. Examples of their application include Indoor Air Quality, Corrosion in Control Rooms, In Vitro Fertilisation, and Odours. What all these ...


    By Bioconservacion SA

  • Dry Air Scrubber for Propylene Oxide

    Background For decades, Advanced Air Technologies, Inc. has been the leader in air scrubber  technology for abatement of Ethylene Oxide (EtO) emissions.   In fact, AAT, Inc. was founded in 1987 on a unique dry scrubbing, chemi-sorption process for EtO.  The result is a series of fixed bed “Safe-Cell II” dry scrubbers, consisting of the DR-490, DR-50, and ...

  • UV LEDs making waves with clean water

    Oxford Instruments systems now facilitate water purification technology With World Earth Day last week I’ve decided to make this weeks blog about how new technology is being used to enhance people’s lives in a fundamental way. The UN recognises that clean drinking water is a global issue with over ...


    By Oxford Instruments plc

  • Chemical cleaning guide - Case study

    Purpose This plant service bulletin provides guidelines to owners and operators on when to chemically clean boilers and steam generating equipment. Background Though current standard water treatment practices may be followed, the internal surfaces of boiler waterside components (including supply tubes, headers and drums) can accumulate deposits over a period ...


    By Babcock & Wilcox MEGTEC LLC

  • Honeycat cleans up VOC emissions from textile coating process - Case Study

    Product: Honeycat, Catalytic Oxidation System Application: Textile, Resin coating Customer: Permali, Ltd Site: Gloucester, UK Flowrate: 15,000, Nm3 hr-1 VOCs: Methyl,Cellosolve, Acetone, MEK & IMS Concentration: 0,to 8 ...


    By AirProtekt Limited

  • Why ‘custom-built’ is often cheaper than off the shelf

    We know that we’ve said it before, but even though we list what we call our ‘standard range’, by far and away most of the incinerators and cremators we manufacture are specially designed and manufactured to match the individual needs of each customer.  Since everyone’s requirements are different, virtually every unit we produce is ‘made to order’ and the ...


    By Todaysure Limited

  • Clean water is a basic human right, and we can and should make it affordable to everyone

    Ask someone in Flint, Michigan, or São Paolo, Brazil — the list of cities rocked by water disasters seems to grow each day — how much safe water is worth. Worried about contamination and drought, it might be a pretty penny. But the ability of people to actually pay for the full cost of water — from ...


    By Ensia

  • Robust on-line monitoring assay - Case Study

    Alkaline Phosphatase Enzyme Activity Measurement as a Robust on-line Monitoring Assay for Water Quality Assessment. Zina Al-Saar 4th year Intern student Avans University of Applied Science - ATGM Department Joep Appels - Supervisor and Managing Director microLAN on line Bio-monitoring System. ...


    By microLAN B.V.

  • Thermal Oxidiser – Huntsman Corporation - Case Study

    Project Details Customer Name: Huntsman Corporation The Brief: Process a chemical waste liquid stream resulting from the manufacture of amines Location of Installation: Llanelli, South Wales Products ...


    By Process Combustion Ltd

  • Thermal Oxidiser - Dickinson Legg - Case Study

    Project Details Customer Name: Dickinson Legg The Brief: Provide heat for drying tobacco products and oxidise waste gas. Location of Installation: China,  Indonesia, Vietnam, South Korea, Turkey, Chile, Germany, Egypt Products ...


    By Process Combustion Ltd

  • Thermal Oxidiser - Scottish Leather Group - Case Study

    Project Details Customer Name: Scottish Leather Group The Brief:  Scottish Leather were sending 30, 000 tonnes of waste to landfill each year. Turn that waste into heat and steam for processing leather and heating water Location of Installation: Bridge of Weir, ...


    By Process Combustion Ltd

  • peCOD is the New NOM Monitoring Tool for Measuring Organic Reactivity - Case Study

    Natural organic matter (NOM) is a critical parameter for measuring drinking water quality.  Levels of NOM are associated with taste, odour, colour, chemical treatment dosage, and disinfectant by-product (DBP) formation.  There are several tools accepted by drinking water quality experts which are used to evaluate NOM: total organic carbon (TOC), dissolved organic carbon (DOC), UV254, ...


    By MANTECH

  • Monitoring Gas Emissions from Volcanoes to Predict Volcanic Activity

    To understand and predict the behaviour of volcanoes an increasing number of scientists are combining geological monitoring and geochemical models. By measuring and monitoring the prevalence of gases like CO2, scientists hope to be able to better predict the likelihood of volcanic eruptions. In 2010 Iceland’s Eyjafjallajökull volcano erupted, releasing 250 million ...


    By Edinburgh Instruments Ltd

  • Comparison of the water purification efficiency of two different flocculation-sediment-filtration (FSF) processes in Chaohu Lake in China

    A novel biofilter (BF) with the potential to improve pollutant removal when used as a substitute for sand filters in water purification processes is presented. To investigate BF's pollutant removal performance, a flocculation-sediment-biofiltration (FSBF) process was compared with a flocculation-sediment-sand filtration (FSSF) process on a lab scale, with water collected from Chaohu Lake. The ...


    By IWA Publishing

  • Case study - New monitoring network for Scottish ports

    In the past, the ferries operating off the west coast of Scotland would have to sail to port to assess weather and tidal conditions would allow them to berth alongside the pier.  In efforts to save time, fuel and costs, the Caledonian Maritime Assets Limited (CMAL), which owns many of the ferries, ports and harbors in the region, decided to install 15  tide and weather stations, using ...


    By The OTT Hydromet Group

  • Case study - Reservoir Aabach Germany - Continuous monitoring of contact pressure

    With a total volume of approximately 20 million cubic meters of water and a length of 450 meters, the reservoir supplies drinking water for 200.000 people in the area and fulfils also an important  function in the flood protection there. With the new monitoring solution it was possible to reduce the workload and cost for collecting, reading out and transmitting of data significantly. An ...


    By The OTT Hydromet Group

  • 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

  • Neon Gas and Where it is Used - PureAire Oxygen Deficiency Monitors for Safety and Why a Monitor May be Required?

    Neon gas has a range of uses in industry, including in the popular business signs advertising stores as open. Explore some of the less well-known ways to use neon and learn how use of the gas may require installation of an oxygen deficiency monitor to protect worker safety.   Uses for Neon Gas Neon gas can be filtered from helium using ...

  • Hardware Solutions to Monitor Gas and Thermal Energy

    Why Monitor Gas and Thermal Energy? Hang on, are you telling me you are an energy manager that’s only worried about electricity!? Let’s take a step back and realise that gas represents nearly 40% of the total energy consumed in the industrial and service sectors in Europe. That’s almost half, you guys! ...


    By DEXMA

  • Degradation and toxicity depletion of RB19 anthraquinone dye in water by ozone-based technologies

    This research investigated the discoloration and mineralization of Reactive Blue 19 (RB19) anthraquinone dye by single ozonation, single UV radiation and ozonation jointed with UV radiation (O3/UV). The problem was approached from two points of view: with the objective of color removal or the mineralization of solution. In each case, the optimum operating conditions were different. Ozonation ...


    By IWA Publishing

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