Soil Monitoring Articles

  • How Not to Lose Cadmium While Measuring?

    Today cadmium finds a better usage than a hundred years ago. For example, metal cadmium plating is used for anticorrosion coatings that are more stable than zinc, nickel and tin-plated. Cadmium plating of steel parts gives greater resistance to corrosion, especially in sea water. About 20% of cadmium goes to the manufacture of cadmium electrodes used in ...


    By Lumex Instruments Group

  • Horizontal Well Rehabilitation at NASA Facility

    A horizontal groundwater extraction well at an active NASA facility in Louisiana was impacted by mineral scaling and bio-fouling affecting operations of the groundwater pump and the treatment system. A flow reduction of over 50% was observed. Directional Technologies, Inc. performed a series of horizontal well rehabilitation activities, that increases flow by 58%, which including mechanical ...

  • Comparison of in situ DGT measurement with ex situ methods for predicting cadmium bioavailability in soils with combined pollution to biotas

    To assess the capabilities of the different techniques in predicting Cadmium (Cd) bioavailability in Cd-contaminated soils with the addition of Zn, one in situ technique (diffusive gradients in thin films; DGT) was compared with soil solution concentration and four widely used single-step extraction methods (acetic acid, EDTA, sodium acetate and CaCl2). Wheat and maize were ...


    By IWA Publishing

  • Thermally activated persulfate oxidation of NAPL chlorinated organic compounds: effect of soil composition on oxidant demand in different soil-persulfate systems

    This study investigates the interaction of persulfate with soil components and chlorinated volatile organic compounds (CVOCs), using thermally activated persulfate oxidation in three soil types: high sand content; high clay content; and paddy field soil. The effect of soil composition on the available oxidant demand and CVOC removal rate was evaluated. Results suggest that the treatment ...


    By IWA Publishing

  • Use of Electromagnetic Induction Tools in salinity assessment/appraisals in eastern Colorado

    Abstract Electromagnetic induction (EMI) is a relatively low-cost and rapid method for measuring, assessing spatially soil salinity. The two studies were conducted to evaluate data obtained with a single-frequency (EM38 meter) and multi-frequency (GEM300 sensor) EMI instruments and to relate apparent conductivity measured by these instruments with the more conventional conductivity of the ...


    By Geonics Limited

  • Using Electromagnetic induction to characterize soils - Case Study

    Electrical conductivity measurements have been used for years to determine salinity and moisture in soils. Probes were inserted directly into the soil to determine how well the soil conducted an applied current. This process was slow and labor-intensive and was usually reserved for scientific studies. A more recent technique for measuring conductivity is electromagnetic induction (EM), a ...


    By Geonics Limited

  • GoForth, NC Case Study

    ABSTRACT Trap & Treat® BOS 200® was used to remediate petroleum hydrocarbon impacted groundwater within fractured bedrock and overburden soil at a former retail gasoline site in North Carolina. After a thorough remedial design characterization was completed, BOS 200® was surgically injected over two field events to successfully achieve the ...

  • Characterisation of septage in partially sealed cesspit

    The alteration of wastewater from an individual home under anaerobic conditions in a partially sealed cesspit over the filling period of four months, and the pollution fluxes were assessed. The septage was much more concentrated than raw wastewater. A mass balance found percentage (%) removal rates for biological oxygen demand (BOD5, 78%), chemical oxygen demand (COD, 62%), total nitrogen (TN, ...


    By IWA Publishing

  • Open data aims to boost food security prospects

    Rothamsted Research, a leading agricultural research institution, is attempting to make data from long-term experiments available to all. In partnership with a data consultancy, is it developing a method to make complex results accessible and useable. The institution is a member of the Godan Initiative that aims to make data available to the scientific community. In ...

  • Identification of groundwater contamination zone around a reclaimed landfill using carbon isotopes

    Chemical and isotopic analyses of groundwater from piezometers localized around a reclaimed landfill were performed in order to identify the boundaries of groundwater contamination zone. Spatial distribution of dissolved inorganic carbon (DIC) concentration and stable carbon isotopes in the groundwater was used to distinguish the piezometers localized within the contaminated aquifer. Background ...


    By IWA Publishing

  • Prison Produces Proper Professional Product

    Earlier this year the States of Jersey Prison Service, located on the South West hilltop coastline of Jersey took to recycling their food and green waste at the prison with an A900 Rocket Composter and Dehydra dewatering system, which was supplied and installed by Tidy Planet. The project has proved a Triumphant success thanks to the forward thinking and enthusiasm shown by the team on site and ...


    By Tidy Planet Limited

  • How To Complete A Soil Test The Right Way

    A soil test should be one of the first steps you take in your landscape plan. Many of us never take this important first step, which contributes, to wasted resources and wasted time. The U.S. Department of Agriculture says soil testing is an “essential” tool that provides information on fertility and pH. Testing also indicates ...


    By Jain Irrigation, Inc

  • Knowledge, attitudes and practices on use of Fossa Alternas and double vault urine diverting dry (DVUDD) latrines in Malawi

    Fossa Alternas and double vault urine diverting dry (DVUDD) latrines have been extensively promoted as ecological sanitation (EcoSan) latrine options in Malawi, but little is known about whether they are used properly. A qualitative study of EcoSan users was conducted in Blantyre and Chikwawa districts, Malawi. Data were collected using in-depth interviews (IDIs). Twenty-eight (28) and ...


    By IWA Publishing

  • Should Your Sensor Have A Connector Or Pin Terminals?

    When it comes to measuring the activity of your project, it’s nice to have options. High precision sensors can offer plenty of selections from the range of your measurements to the output of your readings, but a sensor is only as good at its connection. Connectors and pin terminals are common and dependable connections that relay your readings from within the sensor to the screen in front ...


    By Jewell Instruments LLC

  • Defluoridation of groundwater using mixed Mukondeni clay soils

    Excess fluoride in drinking water is harmful to human health and therefore it needs to be removed from water before consumption. The potential of locally available mixed Mukondeni clay soils (MMCS) as a cheap adsorbent for the removal of fluoride from aqueous solution was investigated. Characterization of MMCS was done by X-ray fluorescence, X-ray diffraction, scanning electron microscopy, ...


    By IWA Publishing

  • Phosphate treatment by onsite wastewater systems in nutrient-sensitive watersheds of North Carolina's Piedmont

    The goal of this study was to gain a better understanding of the PO4-P treatment efficiency of onsite wastewater systems (OWS) installed in nutrient-sensitive watersheds of the North Carolina Piedmont. Four OWS including two conventional and two single-pass sand filter (SF) systems were evaluated at sites with clay-rich soils. Piezometers were installed near all of the OWS, and down-gradient ...


    By IWA Publishing

  • Hand-Mix Case Study: SMR Soil Stabiliser Experience in Devon

    Success in the Use of Recycled Aggregate Despite being the Highway Authority with the largest U.K. network, (some 12900 km) and having reputedly one of the strictest Street Works regimes in England; Devon County Council have been very receptive to the correct use of SMR Soil Stabiliser by Utility Companies since its ...


    By SMR (UK) Ltd.

  • Calibration of a capacitance soil sensor is required to achieve the level of accuracy required for satellite ground truthing

    Why not make it easy with a non-capacitance based soil sensor like the HydraProbe? This study published in American Meteorological Society's BAMS journal demonstrates the extent of variability in readings one can expect with a soil moisture sensor based on capacitance technology.  To ...

  • Case Study - Evaluating Geothermal Potential - Ravenna, Italy

    University of Bologna researchers carried out an investigation of the thermal properties of the coastal aquifer at Ravenna Italy in order to evaluate its geothermal potential for residential heating. As part of that investigation, they measured the water temperature versus depth at 56 piezometers. EnviroInsite was then utilized to establish the relationship of water temperature with land use, ...


    By EI LLC

  • Soil Retention at Village of Moreland Hills, Ohio - Case Study

    PROJECT SCOPE: The village of Moreland Hills, Ohio faced a challenge to re-tain soils in a problematic soft soil area. But, piling systems were expensive and a concrete solution in the natural environment was undesirable. Presto GEOWEB® earth retention system’s inherent qualities include its flexibility, ability to withstand reasonable differential settlement in soft soil environ-ments, ...


    By Presto Geosystems

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