blanketing Articles

  • Argon and Nitrogen in Glove Boxes and Blanketed Chambers case study

    Application Moisture is measured in argon or nitrogen when it is used as a blanketing gas in glove boxes and other blanketed applications. Problem The presence of moisture in the blanket gas for a glove box causes serious contamination problems especially when welding or conducting moisture-sensitive chemical reactions. Moisture causes product contamination, ...


    By AMETEK Process Instruments

  • Heat treatment of steels and other metals case study

    Application Moisture is measured in the blanketing gases that are used in the treatment of steel. Problem Inert blanketing gases are required during the heat treatment of steels to prevent oxidation of the metal product. At heat-treating temperatures, moisture and oxygen will readily react with the metal to form an undesirable metal-oxide coating on the ...


    By AMETEK Process Instruments

  • Settling behaviour of pellet flocs in pelleting flocculation process: analysis through operational conditions

    Pellet flocs' settling velocity is an important parameter in the pelleting flocculation blanket (PFB) process, hence, it is necessary to investigate flocs' settling behaviour to achieve the optimum operation parameters of the process. To investigate the settling behaviour of pellets under different operational conditions, a dynamic experiment was carried out to concentrate ferric flocs sludge by ...


    By IWA Publishing

  • Parameters affecting steady-state floc blanket performance

    A laboratory-scale reactor was used to simulate a water treatment process sequence of rapid mix, hydraulic flocculation, upflow clarification with a floc blanket, and lamellar sedimentation to accomplish removal of colloidal particles. This study focused on variables affecting performance of the floc blanket including: provision of hydraulic flocculation, raw water turbidity, coagulant dose, ...


    By IWA Publishing

  • Dinosaur provincial park, Brooks, Alberta, Canada - Case Study

    Dinosaur Provincial Park, in southern Alberta, Canada, is one of the most fossil-rich areas in the world. Recognized as a World Heritage Site by the United Nations, the park attracts hundreds of researchers and many tourists each year to visit, study and excavate. Last summer, the park also attracted some engineers bent on solving an erosion problem. Decades of erosion had carved out a 3-m ...


    By Presto Geosystems

  • Is ‘access to adequate and equitable sanitation’ for all by 2030 achievable? Perspectives from sector experts on what needs to change to realise the Sustainable Development Goal

    The global community has set the goal of universal access to sanitation by 2030. In the face of limited progress, business as usual is not an option for sanitation sector actors. Through an expert consultation, this paper aims to shed light on the changes needed. Experts believe that in the past, sanitation was regarded as a taboo and a private issue, and given low political prioritisation. ...


    By IWA Publishing

  • The drive to ban the NOEC/LOEC in favor of ECx is misguided and misinformed

    Challenges to the use of the NOEC in ecotoxicology have appeared over the years, with a recent call for banning its use in favor of the ECx. This paper presents an opposing view, providing reasons for the continued use of the NOEC, and for hypothesis testing in general. Although the use of ECx values is appropriate in many situations, there are numerous real‐world examples where it is not ...


    By John Wiley & Sons, Ltd.

  • Introducing `Oscar`

     Introducing O.S.C.A.R., Guardian Environmental Technologies newest entrant to the oil sheen control and removal community. This product incorporates the industry approved standard oil spill containment booms with Guardian's own SheenGuard oil sheen removal blankets. The absorbent used is PetroGuard, the original oil solidifier that was introduced by Guardian in 1992. OSCAR's unique design ...

  • A design study of Pb-Bi-cooled fast reactors with natural uranium as the fuel cycle input

    A conceptual design study of Pb-Bi-cooled fast reactors in which the fuel cycle needs only natural uranium input has been performed. In this design, the reactor cores are subdivided into several parts with the same volume. The region with natural uranium is put in the central core and the outer region is arranged with increasing plutonium content. In some cases, the region with natural uranium ...


    By Inderscience Publishers

  • Resilient homes: worth the investment?

    This case explores the economic viability of using an external generator and various other supplies to power a house in order to provide minimum power for sustaining living conditions, and contrasts these costs with the projected cost an insurance company would incur such as replacing and/or repairing burst pipes, spoiled food, and relocating a family to a hotel while repairs are completed. ...


    By Inderscience Publishers

  • Embankment drainage with Terram drainage composites

    Project Design and construction of a new 3km runway, 45m wide with 7.5m shoulders on each side, with taxiways and turning circles, main civils contract £108m; total project cost £172m. Terram Application Terram 1B1 drainage composite was used extensively (some 300,000nr) in the construction of the embankment carrying the runway over the River Bollin ...

  • Anaerobic hybrid reactor: a promising technology for treatment of distillery spent wash

    A laboratory-scale study was conducted to investigate the performance of anaerobic hybrid (combining sludge blanket and filter) and UASB (Upflow Anaerobic Sludge Blanket) reactors for the treatment of distillery spent wash. The start-up and granulation study demonstrated that early start-up and granulation were achieved in case of hybrid reactor (45 days) as compared with UASB reactor (60 days). ...


    By Inderscience Publishers

  • Reasons why companies prefer renting a crane

    Tasks concerning building of flats, high as can be structures and exclusive homes are picking up worldwide ubiquity on account of the progressed ages of fast advancements. Are these building activities pricey, as well as they are exceptionally overwhelming and require immense capital ventures. This is the definite excuse for why the work of a foreman is frequently ...

  • Case study - South Pool Creek, Devon

    Part of the works to repair an essentials road recently damaged by a landslide required hydroseeding to it's slopes and to help retain the soil an erosion control blanket was fitted by the client prior to seeding. Additional tackifier was added to the mix to help bind the sprayed on material to the steep slopes until germination and the establishment of the new grasses. Project Size: ...


    By RMB Hydroseeding

  • Novel method for sludge blanket measurements

    The most widely used methods for sludge blanket measurements are based on acoustic or optic principles. In operation, both methods are expensive and often maintenance-intensive. Therefore a novel, reliable and simple method for sludge blanket measurement is proposed. It is based on the differential pressure measurement in the sludge zone compared with the differential pressure in the clear water ...


    By IWA Publishing

  • Technical Focus: Sludge Blanket

    Regardless of treatment process, sludge blanket control is an important aspect of any wastewater treatment plant, and correct monitoring and treatment of sludge is paramount for efficiency and cost control. Manual monitoring of sludge blanket levels is an occasional and often rushed method of control and can lead to inaccuracies being compounded over time, potentially leading to overspill into ...


    By Partech (Electronics) Ltd.

  • Nitrogen Blanketing

    Overview Nitrogen (N2) blanketing is a process by which nitrogen is added to fill the headspace (the area between the fill line of a tank’s contents and the top of the storage vessel) to eliminate oxygen and moisture from storage tanks. Nitrogen is commonly used to blanket due to its extremely low reactivity with other substances, as well as its availability and relatively low cost. ...

  • High rate anaerobic treatment of Sago wastewater using HUASB with PUF as carrier

    Abstract: Sago industry is one of the major small-scale sectors in India and over 800 units are located in the southern State of Tamilnadu. Processing of sago generates enormous quantities of high strength wastewater requiring systematic treatment prior to disposal. The present study is an attempt to treat the sago wastewater using Hybrid Upflow Anaerobic Sludge Blanket (HUASB) reactor, which ...

  • Controlling Sludge in Lamella Clarifiers

    This month we are focusing on the control of sludge blanket build up in Lamella Clarifiers. Lamella Clarifiers, also known as Inclined Plate Separators (IPS) are in common use at Waste Water Treatment Sites as small footprint plant settlement units and are often employed in ...


    By Partech (Electronics) Ltd.

  • Understanding what additional insured means in an environmental insurance policy

    Virtually all environmental contractors and consultants require some form of environmental insurance coverage to be able to bid on contracts and to provide their services to the public. It’s important for environmental contractors and consultants to understand their insurance needs and all the terms covered in their policies. Understanding what Additional Insured means with an environmental ...

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