conductivity monitoring cell Articles

  • Minnesota Dairy Runs Hydrogen Fuel Cell on Biogas

    Untitled Document Demonstration project with ...


    By BioCycle Magazine

  • Gas cell selection for analysis of electronic gases

    APIMS and FTIR remain the preferred analytical tools for monitoring impurities in the electronic  specialty gases used by the semiconductor industry, although other tools such as CRDS are currently finding application in selected cases. FTIR spectroscopy offers the advantage of the simultaneous measurement of all gaseous species that exhibit dipole moment changes during vibrations at ...


    By CIC Photonics, Inc.

  • Monitoring of Algae Growth by TOC Measurement

    Global warming due to the excessive use of fossil fuels is becoming a problem which has prompted and accelerated the search for alternative fuels. Among the more attractive alternatives is biomass fuel, which is attracting considerable attention. Microalgae can be used for the production of oil without competing with food production, and to a greater extent than other biofuels, its ...

  • In-pipe monitors turn dreams into reality

    In-pipe monitors turn dreams into reality The quality of tap water has improved enormously in recent decades, but for largely technological reasons, until recently, knowledge of water quality between the treatment works and the tap has been an almost impossible dream for water treatment and distribution network managers. In this article, Jo Cooper, Product Specialist at Intellitect Water, will ...


    By Intellitect Water Ltd

  • The hydrological performance of bioretention cells in regions with cold climates: seasonal variation and implications for design

    Three bioretention cells in Norway were monitored for 23 to 36 months to evaluate the hydrological performance of bioretention cells operated in regions with cold climates and to test if cell size equations can be used to predict hydrological performance. Values of saturated hydraulic conductivity (Ksat) were determined for separate events by analyzing the observed ...


    By IWA Publishing

  • Continuous on-line monitoring of dissolved oxygen in the activated sludge of a sewage treatment plant

    Dissolved oxygen is traditionally measured using a Clark cell, which relies upon a gas-permeable membrane for its opera-tion. Such sensors are subject to fouling with subsequent loss of accuracy, making frequent maintenance and calibration necessary. The objective of this development was to take advantage of specific properties of microelectrode arrays, such as low flow-dependence, insensitivity ...


  • Monitoring of three drinking water treatment plants using flow cytometry

    A 4-month sampling campaign has been conducted for the monitoring of three drinking water treatment plants using flow cytometry and culture-based methods to provide information related to changes in bacterial concentration according to treatments. Flow cytometry is a fast and user-friendly technique enabling bacteria quantification and viability assessment in less than 1 hour. Specific profiles ...


    By IWA Publishing

  • Instek LTM Probes provide faster response times and superior pulp level monitoring

    Do you need reliable signals with accurate pulp level detection, low maintenance costs AND simultaneously increase your recoveries? Instek Control LTM products provide superior pulp-level interface monitoring through the benefits of conductance technology and advanced digital signal processing logic. Ideal for monitoring froth or foam covered process cells, tanks and sumps, the LTM probe ...


    By Zeroday Enterprises, LLC

  • Study of Geoprocesses with Complementary Mechanical and Electromagnetic Wave Measurements in an Oedometer

    Particulate geomaterials can be uniquely studied with wave-based techniques. Electromagnetic and mechanical waves interact with the tested material, exciting different phenomena and revealing different information. Complementary wave measurements were implemented in a modified oedometric cell to study and to monitor different processes in geomaterials. The cell and the measuring devices are ...


    By ASTM International

  • Polypyrrole incorporating biomolecules

    Polypyrrole (PPy) is a conducting polymer with emerging applications in biomedical engineering. We report on the synthesis and properties of PPy incorporating biomolecules using AC impedance spectroscopy. Impedance behaviour was consistent with two basic charge transfer processes, polaronic and electronic, demonstrated by two-electrode impedance spectroscopy over the frequency range 5 Hz?13 MHz. ...


    By Inderscience Publishers

  • High Resolution FTIR Analysis of Carbon Monoxide (CO) Gas

    FTIR is being used for analysis of gases in various industries, such as the gas manufacturing industry where it is used for production management, and for gas monitoring in such fields as chemical manufacturing and semiconductor manufacturing, etc. When conducting gas analysis by FTIR, the resolution and gas cell path length must be selected depending on the concentration and peak shape ...

  • Acetate uptake by PHA-accumulating and non-PHA-accumulating organisms in activated sludge from an aerobic sequencing batch reactor fed with acetate

    The present study was conducted to evaluate the specific acetate uptake rates of microorganisms with and without polyhydroxyalkanoates (PHA) accumulation. Activated sludge was aerobically incubated with 75 mgC L−1 radiolabeled or non-labeled acetate, and acetate consumption and PHA accumulation were monitored. Microorganisms were quantified as follows: all microbial cells by DAPI staining, whole ...


    By IWA Publishing

  • Evaluation of microbial population and attachment study during bio–heap leaching at Malanjkhand copper project

    Microbial analysis of a 2X1000–tonne bio–heap leaching plant of Malanjkhand copper ore was done. Continuous monitoring of the micro–organism profile was done through conventional methods. The evolution of microbial population was done at quarterly intervals. The bacterial cultures were allowed to grow on Feo medium and FeSo medium. Three iron–oxidising acidophiles, namely, ...


    By Inderscience Publishers

  • Rainstore3 insitu testing results

    From 10 February to 17 February 2000 Invisible Structures Inc. (ISI) and Advanced Terra Testing, Inc. (ATT) conducted insitu testing on the Rainstore3 product produced by ISI. ISI excavated the test hole, installed the product per their specifications, and supplied and operated the loading vehicles. ATT installed the load cells and displacement transducers, organized the testing parameters, ...


    By Invisible Structures, Inc.

  • Water quality and quantity assessment of pervious pavements performance in experimental car park areas

    Pervious pavements have become one of the most used sustainable urban drainage system (SUDS) techniques in car parks. This research paper presents the results of monitoring water quality from several experimental car park areas designed and constructed in Spain with bays made of interlocking concrete block pavement, porous asphalt, polymer-modified porous concrete and reinforced grass with ...


    By IWA Publishing

  • Locating Geomembrane Liner Leaks under Waste in a Landfill

    Abstract An Electrical Leak Imaging and Monitoring (ELIM SM) survey was used to locate leaks under 2.5 meters of stabilized waste in an active geomembrane-Iined landfill. The landfill is lined with two 2-mm thick HDPE geomembranes that are separated by a geonet drainage layer. The primary liner is covered with 600 mm of drainage sand and 2.5 meters of stabilized waste for a total cover ...

  • Passively Enhanced In-Situ Biodegradation of Chlorinated Solvents

    Harding Lawson Associates (HLA) conducted a field demonstration to evaluate in situ enhanced anaerobic biodegradation of chlorinated solvents using Hydrogen Release Compound (HRC). The technology is designed to enhance the natural biodegradation process for a more rapid and complete degradation of the organic contaminants to non-toxic compounds (e.g., ethylene). This paper presents the results ...


    By REGENESIS

  • Rapid quantification of polyhydroxyalkanoates (PHA) concentration in activated sludge with the fluorescent dye Nile blue A

    The present study was conducted (1) to develop a rapid quantification method of polyhydroxyalkanoates (PHA) concentration in activated sludge by Nile blue A staining and fluorescence measurement and (2) to perform on-line monitoring of PHA concentrations in activated sludge. Activated sludge samples collected from laboratory scale sequencing batch reactors and full-scale wastewater treatment ...


    By IWA Publishing

  • Use of Eight Well Purging and Sampling Record

    This article describes a groundwater well purging and sampling form that can be downloaded at our website. A click on the articles button will take you to a list of Monitoring Tips and Procedures articles, one of which is the sampling form. The form can be used to record  indicator parameters pH, conductivity, temperature, etc., taken during ...


    By RotaPump, Inc

  • SMF4 case study 1

    Recycled water plant monitoring Date: 2011 Location: New South Wales Australia Purpose: To determine if the SMF4 could be used to monitor the output from a grey water recycling plant and conclusively differentiate the output water between potable and recycled. Background STS has had a long history of closely working with ...


    By Safe Training Systems Ltd

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