h-strainer Articles

  • Pumping Wastewater into Existing Pressure Sewer

    Romtec Utilities designs, manufactures, and supplies pumping systems for many different applications. Our systems include all structural, all mechanical, all electrical, and all communications systems in a single purchase. Many of our systems are designed and supplied to handle sewage and wastewater flows in a lift station design. In many scenarios, these lift stations ...


    By Romtec Utilities Inc.

  • H-ADCP Flow Gauge Installation

    Wessex Water contracted HL to install a new flow-gauge to provide flow data on the environmental impact of abstraction upstream and downstream of a riverside borehole for public-supply. Due to the channel and hydraulic conditions at the site on the River Yeo in Somerset, HL selected a horizontal ADCP Channelmaster device from Teledyne RDi for providing accurate velocity profiles at one elevation ...

  • 5000Nm3/h HT Flares in Sao João, Brazil

    Type      HOFGAS®-Efficiency 5000 Performance     3x 5,000 Nm3/h, 75,000 KW Location     Sao João (BR) Technical requirements Surplus combustion of 15,000 Nm3/h landfill gasCompliance with the UNFCCC regulationsHigh temperature combustion at 1,000-1,200°CHolding time ≥ ...


    By Hofstetter BV

  • Ultrasonic degradation of 1-H-benzotriazole in water

    This paper reports on the effect of different parameters of ultrasonic power, pollutant initial concentration, pH and the presence of co-existing chemical species (oxygen, nitrogen, ozone, and radical scavengers) on the ultrasonic degradation of the endocrine disruptor 1-H-benzotriazole. Increasing the 1-H-benzotriazole initial concentration from 41.97 to 167.88 μM increased the pollutant ...


    By IWA Publishing

  • Larry H. Miller dealership remodel case study

    In October 2012, the Larry H. Miller Group (LHMG) determined that renovating three of its Peoria, Arizona, dealerships was necessary to remain competitive in the Phoenix market. They embarked on an eight-month-long project that included a complete re-facing of two buildings and a demolishing and rebuilding of the third. The goal of the project was to update showrooms and increase brand ...

  • ENI - 100 m3/h produced water treatment

    Client: ENI Blacktip Field CETCO Oilfield Services is to boost operations in northern Australia, working with integrated energy company ENI after winning a contract worth over $650,000 AUD. ENI turned to CETCO to assist with its water treatment requirements in the Blacktip Field, due to come online in 2009. This project is a significant step for both companies towards a greater presence within ...


    By CETCO Energy Services

  • Erratum: Water Science and Technology 72 (7): Development of a new wastewater treatment process for resource recovery of carotenoids, H. Sato, H. Nagare, T. N. C. Huynh and H. Komatsu, doi: 10.2166/wst.2015.330

    A new wastewater treatment process that involves coagulation, ozonation, and microalgae cultivation has been developed. Here, two challenges are discussed. The first was minimizing phosphorus removal during coagulation in order to maximize algal production. The second was to optimize microalgae cultivation; algal species that grow rapidly and produce valuable products are ideal for selection. ...


    By IWA Publishing

  • An integrated H-infinity optimised fuzzy controller for UPFC in multimachine power systems

    A detailed mathematical model of a multimachine power system with unified power flow controller (UPFC) has been developed with a view to control the active and reactive power flow in the transmission line and to improve transient stability performance. Thus, initial voltage and angles of the series and shunt voltage sources are computed and used during transient stability studies. After the power ...


    By Inderscience Publishers

  • Efficient pre-processing watermark for robust video watermarking of H.264/AVC

    This paper proposes a greyscale pre-processing and robust video watermarking algorithm for the copyright protection application in the emerging video coding standard H.264/AVC. The watermark is first transformed by a Hadamard transform and modified to accommodate the H.264/AVC computational constraints before it is inserted into video data in the compressed domain. This approach leads to good ...


    By Inderscience Publishers

  • Application of H-infinity hybrid active controller for acoustic duct noise cancellation

    This paper describes the principle and application of a hybrid robust active noise controller (ANC) for reducing broadband noise in acoustic ducts. The proposed ANC system consists of an adaptive controller with filtered-x least mean square (FXLMS) algorithm and a feedback structure with robust synthesis theory for obtaining robust performance and stabilisation. In an active control structure, ...


    By Inderscience Publishers

  • Simulation of a large multiple pit mining operation using GPSS/H

    As fuel, tyres, maintenance, and labour costs rise, it is crucial that mining companies achieve the greatest production for the least amount of equipment operating hours. Computer simulation can be used to evaluate production operations and their impact on productivity. GPSS/H is one of many computer simulation models that can be used to simulate mining operations. In this study, a simulation ...


    By Inderscience Publishers

  • Observations on an H-shaped dinoflagellate. An example of the projection of body extensions in gymnodiniacean cells

    Little is known about the morphological versatility of the unarmoured dinoflagellates. The morphology of an unarmoured dinoflagellate with a distinctive H-shaped contour is described from sub-surface waters of the Strait of Gibraltar (NEAtlantic) and the northern Philippine Sea (NW Pacific). The cell body was slightly hexagonal with two rounded-tip apical arms and two antapical sharp-pointed ...


  • H-ADCP Flow Gauge, Wessex Water case study

    Wessex Water, Design, supply and installation of low-flow environmental impacts monitoring system on the River Yeo in Somerset, 2005-2008 Wessex Water contracted HL to install a new flow-gauge to provide flow data on the environmental impact of abstraction upstream and downstream of a riverside borehole for public-supply. Due to the channel and ...


    By Hydro-Logic Services

  • H∞ controller for stability enhancement in VSC HVDC system with parallel AC lines

    In this paper, a state-space model for a voltage source converter based high voltage direct current (VSC HVDC) transmission link in parallel with an AC transmission line is developed using dq-coordinate system. A robust H∞ control design for the converter and inverter of the VSC HVDC system is proposed to maintain the DC voltage and control the active and reactive power at the converter stations. ...


    By Inderscience Publishers

  • The geostatistical evaluation of coal parameters in Seam H, Malinau area, Indonesia

    Geostatistical modelling of coal quality parameters has not been widely adopted in Indonesia. Geostatistical interpolation of non-assay data allows the mine planner to estimate quality parameters regarding mining. The foresight can then be used for more timely and accurate seam blending protocols. This paper discusses the modelling and the spatial variability of three coal parameters, namely ...


    By Inderscience Publishers

  • Performance measurement of a twisted three-bladed airfoil-shaped H-rotor

    In the present study, performance of a twisted three-bladed airfoilshaped H-rotor was measured experimentally for different values of chord Reynolds number of flow and ratios of height-to-diameter (H/D). The rotor was 20 cm in height (H) and 5 cm in chord with about 26° twist at the trailing end. Tests were conducted in an open circuit subsonic wind tunnel for ten H/D ratios, namely 0.85, ...


    By Inderscience Publishers

  • Degradation of carbendazim by UV/H 2O 2 investigated by kinetic modelling

    Abstract The transformation of the fungicide carbendazim (methyl-2 benzimidazole carbamate) induced by hydroxyl radical generated by the UV photolysis of H 2O 2 has been studied in dilute aqueous solution. The efficient reaction of hydroxyl radicals with carbendazim led to the rapid degradation of carbendazim. The study of reaction kinetics yielded a second order rate constant of 2.2±0.3 10 9 M ...


    By Springer

  • Viridor cleans up its H&S and environmental management thanks to legislation experts

    Viridor, one of the UK’s leading recycling, renewable energy and waste management companies, has significantly improved the provision and quality of H&S and environmental expertise available to its compliance team, after turning to online specialists ...


  • Determination of design criteria of an h-ifas reactor in comparison with an extended aeration activated sludge process

    The activated sludge process is a suspended culture system that has been in use since the early 1900s. The process derives its name from the fact that settled sludge containing living, or active, microorganisms is returned to the reactor to increase the available biomass and speed up the reactions. It may be either a completely mixed or plug flow process. The process is aerobic, with oxygen being ...


    By University of Tehran

  • Kinetics of the atrazine degradation process using H2O2-UVC

    This work is concerned with the intrinsic reaction kinetic of the degradation of atrazine (ATZ) using H2O2-UVC. Experimental runs were carried out in annular photoreactor. The initial concentration of ATZ was 2.2 × 10−2 mol m−3 while the H2O2-ATZ molar ratio range was 0–578 mol H2O2 ...


    By IWA Publishing

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