conductivity meter Articles

  • A Low-Cost Electrolytic Tiltmeter for Measuring Slope Deformation

    The tiltmeter described consists of an electrolytic sensor (a glass jar containing an electrolyte and six electrodes) and a portable AC digital conductivity meter, which reads conductivity changes resulting from tilting deflections. The tiltmeter has a sensitivity of 2 to 8 min of arc/cmu (conductivity meter unit), with a measurement range of more than 45°. This tiltmeter measured earth flow ...


    By ASTM International

  • Determining Bentonite Content in Soil-Bentonite Mixtures Using Electrical Conductivity

    A procedure based on electrical conductivity is described for measuring bentonite content in soil-bentonite mixtures having a wide range of bentonite contents. Standard equipment used for sedimentation analysis and an electrical conductivity meter are required. The procedure employs calibration curves relating electrical conductivity and bentonite concentration for soil-bentonite-water slurries. ...


    By ASTM International

  • Geophysical applications to solid waste analysis

    Abstract: Case studies of regional landfills show that electromagnetic geophysical methods can accurately and inexpensively define boundaries and thickness of waste. Degradation of putrescible solid waste generates conductive leachate that can be imaged with a frequency-domain terrain conductivity meter. Terrain conductivity measurements can be modified through a simple algorithm based upon ...


    By Geonics Limited

  • Mapping sedimentation features in an alluvial valley

    Sediments of the Rhone river are characterized by strong heterogeneity between clay, sand and gravel units. To map these units, we employed an electromagnetic instrument (DualEM421). This instrument das the advantage that no contact to the ground is required and it can be carried on foot. With the interpreted data it was possible to map different geologic units to a depth of up to 4.5m. ...


    By Geo2X SA

  • Accuracy of different sensors for the estimation of pollutant concentrations (total suspended solids, total and dissolved chemical oxygen demand) in wastewater and stormwater

    Many field investigations have used continuous sensors (turbidimeters and/or ultraviolet (UV)-visible spectrophotometers) to estimate with a short time step pollutant concentrations in sewer systems. Few, if any, publications compare the performance of various sensors for the same set of samples. Different surrogate sensors (turbidity sensors, UV-visible spectrophotometer, pH meter, conductivity ...


    By IWA Publishing

  • Conductivity Theory and Measurement

    Electrical conductivity is a measure of the ability of a solution to cany* a current. Current flow in liquids differs from mat in metal conductors in that electrons cannot flow freely, but must be carried by ions. Ions are formed when a solid such as salt is dissolved in a liquid to form electrical components having opposite electrical charges. For example, sodium chloride separates to form Na" ...


    By IC Controls Ltd.

  • Commercial SWRO Machine, Philippines

    INTRODUCTION In April 2013, Pure Aqua successfully manufactured and supplied a commercial SWRO machine to a major company in the Philippines. The machine came complete with an advanced microprocessor control along with pretreatments consisting of a ...


    By Pure Aqua, Inc.

  • TLC meter “how-to” video: two-point user calibration

    A Solinst TLC Meter measures water level, temperature, and conductivity. To ensure accuracy of readings, the user can easily calibrate the Meter for conductivity, as required. User calibration allows for adjustment of a TLC Meter if the probe has been altered slightly due to mechanical, biological or chemical affects. If a TLC Meter is tested in standard calibration solution, and the readings are ...


    By Solinst Canada Ltd.

  • Commercial BWRO Package, Iraq

    INTRODUCTION In July 2013, Pure Aqua, Inc. designed and manufactured a commercial BWRO unit to a major company in Iraq to lower chlorine, TDS, and odor from well water. The system included multimedia and activated carbon filters to remove particulates, odor, color and taste, and ...


    By Pure Aqua, Inc.

  • Brackish Water Reverse Osmosis Devices, Dubai UAE

    INTRODUCTION In August 2013, Pure Aqua, Inc. designed and manufactured brackish water reverse osmosis devices to a major company in Dubai, UAE to treat well water. There were four BW-1.5K-140 systems each designed to produce 1,500 GPD at a feed water TDS of a maximum 5,000 ppm, it was selected from our ...


    By Pure Aqua, Inc.

  • The soldier salesman: field instrumentation

    “The victorious strategist only seeks battle after the victory has been won, whereas he who is destined for defeat first fights and afterwards looks for victory.” — Sun Tzu, The Art of War These words may apply to warfare, and though they were written over two thousand years ago by a Chinese general, they could not be more accurate than when applied to today’s sales ...


    By HM Digital, Inc.

  • Commercial RO Package, Jordan

    INTRODUCTION In April 2013, Pure Aqua, Inc. designed and manufactured a commercial RO package to a major hotel in Jordan to remove, chlorine, TDS, and odor from well water. The package consisted of pre and post treatments including a multimedia filter and chemical dosing systems. The brackish ...


    By Pure Aqua, Inc.

  • Skid mounted BWRO Systems, Venezuela

    INTRODUCTION In July 2013, Pure Aqua successfully manufactured and supplied five skid mounted BWRO systems to a major company in Venezuela. The skid mounted BWRO systems came complete with am activated carbon filter for chlorine ...


    By Pure Aqua, Inc.

  • Micro-component survey of residential water consumption in Hanoi

    Daily total water consumption per capita has been used as a basic unit for the future planning of water supply for domestic use. However, for innovative water utilization designs that consider various scenarios, including the effects of policy direction and global warming, and more strategic and efficient water use, it is absolutely essential to consider water usage divided by residential ...


    By IWA Publishing

  • Wastewater Treatment Plant MSD of Buncombe County, NC

    The Metropolitan Sewerage District of Buncombe County was faced with high maintenance cost of existing equipment, poor reliability and increased incinerator cost. After extension research into dewatering options, it was determined that the most economical dewatering system was on-site dewatering with a belt filter press. BDP was the press of choice due to the 3DPTM belt filter press superior ...


    By BDP Industries

  • Identification of Archeological Remnants

    Czorsztyn Castle, Poland 2D Electrical Imaging Objective Study area was within the ruins of the 14th century Czorsztyn Castle, located in the boundaries of Pieniny National Park (southern Poland). The main goal of this research was to check if one of the stone wall residues continues under the ground surface. Additionally, an attempt was ...


    By Advanced Geosciences, Inc.

  • Construction Aggregate Mining: Sand and Gravel - Case Study

    In 1995, we helped a company locate sand and gravel volumes in San Marcos, Texas. This material can be mined and sold for construction purposes. Process The Sting R1 with 47 Dual-Mode Swift electrodes was spaced three meters apart. Two parallel lines were collected eight meters apart to identify conductive silt/clay/shale and resistive ...


    By Advanced Geosciences, Inc.

  • ITS marketing manager quoted in WaterTech

    Professional, ethical testing will start you off on the right foot and will directly determine which services the customer may need. Many substances could be in a customer’s water, but, “It’s not necessary to test for every parameter; that’s what labs are for,” advises Rob Samborn, director of sales and marketing for HM Digital, a Los Angeles-based maker of water ...

  • Large area search and recovery tactics

    A glimpse into large area search and recovery tactics and how Remotely Operated Vehicles have aided in missions. It may seem like an impossible task as you glare over a large body of water; knowing that someone has gone missing beneath the alluring surface and it is your mission to find them. Sadly, this scenario takes place often for search and recovery ...


    By Deep Trekker Inc.

  • Determination of the thermal conductivity of shredded tyres by utilising a hot plate apparatus

    This paper presents the study of thermal conductivity of shredded tyre at varying temperature gradient. To accomplish this objective, laboratory tests have been conducted to determine the heat transfer properties of the materials that compose tyres (i.e., tyre rubber and wires) by using a hot-plate apparatus. A hot plate was adopted by the American Society for Testing and Materials (ASTM) as a ...


    By Inderscience Publishers

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