Ozone Monitoring Articles

  • Ask the Expert: Oil Analysis in Power Generation

    Uptime is one of the key considerations for all power generators. Electricity supply must equal demand at all times. Downtime, especially unplanned downtime, is very difficult to deal with and can be quite costly. Fortunately condition based monitoring can go a long way towards preventing unscheduled downtime and achieving ...


    By Spectro Scientific

  • Three dimensional digital analysis of 2,500 square kilometers of gravity and magnetic survey data, Bellefontaine Outlier area, Ohio

    Introduction The Bellefontaine Outlier area is a highland region of flat lying Devonian age rocks capped by varying amounts of glacial till. The area is entirely surrounded by a topographically flat and heavily glaciated area of flat lying older Silurian age rocks. The Outlier highlands also contains the highest point in Ohio, Campbell Hill, (1,549ft) which has an elevation 40 feet above it ...


    By RockWare, Inc.

  • Improved UV/O3 method for measuring the chemical oxygen demand

    We improved the ultraviolet (UV)/O3-based method for measuring chemical oxygen demand (COD) in water. An on-line COD monitoring device was developed and the UV/O3 method was used to oxidize sample solutions. A model was established by using support vector machines (SVM) algorithm to estimate dissolved oxygen and CO2 in solutions. Based on the measured data by each sensor ...


    By IWA Publishing

  • Case Study: Northern Sonoma County APCD Healdsburg, CA

    In 2009 when Air Quality Specialist George Erdman took over management of his air district’s four station monitoring network located north of the SF Bay Area in Sonoma County, it was clear the entire 35 year old network needed to be overhauled. Not only did equipment need replacing but the way in which data were collected, reviewed and reported needed modernizing as well. After extensive ...


    By Agilaire, LLC

  • AQMesh shown to achieve highest correlation coefficients in new ACS paper

    A new paper published by the American Chemical Society (ACS Sensors) reviews the use of amperometric electrochemical gas sensors for monitoring inorganic gases that affect urban air quality. Written by John Saffell and Ronan Baron of Alphasense, the paper gives a full explanation of how the sensors work, how they have developed and a review of ...


    By AQMesh

  • How Does a Gas Analyser Work?

    Whatever you want to detect, you need to identify a property of the object that is easy-enough to measure. When it comes to monitoring and analysis of gaseous species (atoms or more commonly molecules), it turns out that it often is possible to utilize the optical properties of the gas. You need a light source, a light detector, and a characteristic behaviour of the gaseous species in question ...


    By Opsis AB

  • Analox distributor profile: JFD Australia

    JFD Australia is part of JFD, one of the world’s leading subsea operations and manufacturing companies providing complex diving and underwater systems to the commercial and defence industries. They have two offices in Australia and one in Singapore and their Director is Doug Austin, who has been with the company since 1987. ...


    By Analox Sensor Technology

  • How to choose detectors in the dangerous cargo warehouse

    The principle of choosing toxic gas and combustible gas detectors in dangerous cargo warehouse: 1.Dangerous cargo warehouse detection of gas mainly including combustible or toxic. Measurement of the type of gas characteristics, the first is to measure the explosion, second is the measurement of toxicity. The so-called measuring explosion is the detection of combustible gases, such as ...

  • Analox Distributor Profile: Leisure Pro

    Leisure Pro has been selling scuba diving accessories across the United States for the past 15 years. ...


    By Analox Sensor Technology

  • Catalytic ozonation of diclofenac with iron silicate-loaded pumice in aqueous solution

    The catalytic ozonation of diclofenac (DCF) with iron silicate-loaded pumice (FSO/PMC) in aqueous solution was investigated. FSO/PMC was synthesized by a co-precipitation–impregnation method and characterized using scanning electron microscope, N2 adsorption–desorption, X-ray fluorescence, and pHpzc measurements. Results showed that the FSO/PMC/O3 process obviously improved ...


    By IWA Publishing

  • Environmental impact assessment of a package type IFAS reactor during construction and operational phases: a life cycle approach

    In the present study, a life cycle assessment (LCA) approach was used to analyse the environmental impacts associated with the construction and operational phases of an integrated fixed-film activated sludge (IFAS) reactor treating municipal wastewater. This study was conducted within the boundaries of a research project that aimed to investigate the implementation related challenges of a ...


    By IWA Publishing

  • 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 ...

  • Overview of Rotating Disc Electrode (RDE) Optical Emission Spectroscopy for In-Service Oil Analysis

    Introduction The basis of modern oil analysis is the use of optical emission spectroscopy (OES) to measure the ppm (parts per million) levels of wear metals, contaminants and additives in oil samples. Whatever else an oil lab may measure, a multi-elemental analysis is the core of in-service oil analysis. This paper gives an overview of Rotating Disc Electrode Elemental Spectroscopy and its ...


    By Spectro Scientific

  • Two Detector Solution to Analyzing Sulfur

    Sulfur compounds are reactive, corrosive to pipes, and destructive to catalysts in petroleum refineries. Sulfur emission are strictly regulated globally. When released into the atmosphere sulfur dioxide converts to sulfuric acid resulting in adverse effects on human health and the environment. Sulfur detection is found useful in many other industries; therefore, detection of sulfur compounds in ...


    By Restek Corporation

  • Direct Mass Flow or Volumetric: The Thermal Flow Meter Technology Advantage!

    In today’s world where everyone is watching the bottom line, you need high performance, cost-effective instrumentation—and capillary thermal mass flow meters and controllers have been proven to meet this criteria in a wide range of process applications. Thermal mass flow technology is an industry standard for mass flow control of gases because it measures flow directly, at the ...


    By Sierra Instruments, Inc.

  • Ozone-depleting substances 2015

    Aggregated data reported by companies on the import, export, production, destruction, and feedstock and process agent use of ozone-depleting substances in the European Union Executive Summary Background Chemicals known to harm the ozone layer have been successfully substituted in most parts of the world since 1989, when the Montreal Protocol on Substances ...

  • Degradation of Reactive Yellow X-RG by O3/Fenton system: response surface approach, reaction mechanism, and degradation pathway

    O3/Fenton for the treatment of effluent containing Reactive Yellow X-RG is investigated. The response surface methodology is applied to study the main and interactive effects of the parameters. With the initial dye concentration being controlled at 300 mg L−1, the optimized conditions for wastewater treatment are 3.68, 29.19 and 18.49 mg min−1 for initial pH, mole ratio of ...


    By IWA Publishing

  • Disinfection By-Products (DBP) Precursor Monitoring

    Chlorine has long been used as a primary disinfection method for many water and wastewater treatment applications. However, there is growing concern about the harmful DBP’s produced by the use of chlorine. DBP’s, such as triahalomethanes (THMs), can occur when the natural organic matter (NOM) that is present in the water is combined with chlorine. More specifically, the portion of ...


    By Real Tech Inc.

  • Design and Analysis of a High Pressure Ratio Mixed Flow Compressor Stage

    I. Introduction Smaller frontal area and high thrust to weight ratios of mixed flow compressor stage has resulted in its application for small gas turbine engines in aviation sector [1] . The efficiency and reliability of the compressor depends to a great extent on flow behavior in its flow passage and its interaction between impeller and diffuser. The complex turning of the flow not only ...


    By SoftInWay Inc.

  • EOR Analysis – Enigma Field, Wyoming (Tensleep Formation)

    Andres Fernandez at the University of Wyoming has kindly given us permission to show some of the graphics that he created using RockWorks17. Andres’ work is centered on optimizing production and revenue using the Enigma field as a case study. ...


    By RockWare, Inc.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you