moisture profile Articles

  • Sampling moisture in the soil profile

    Patterns of water replenishment and use give rise to large spatial variations in soil moisture over the depth of the soil profile. Accurate measurements of profile water content are therefore the basis of any water budget study. When monitored accurately, profile measurements show the rates of water use, amounts of deep percolation, and amounts of water stored for plant use.Experimental ...


    By METER Group, Inc.

  • Evaluation of the Gamma and Neutron Radiation Scattering and Transmission Methods for Soil Density and Moisture Determination

    In order to warrant the accuracy of soil density and moisture data from measurements by means of the gamma and neutron radiation attenuation methods several influencing factors have to be taken into account, for example, the soil hydrogen content, the soil inhomogeneity, the resolution characteristics of the measuring device and the probe travel velocity. Some interpretation concepts, related to ...


    By ASTM International

  • Soil Column Drainage Modelling Using a Geotechnical Centrifuge

    Equipment has been developed to facilitate supplying a soil column with water or draining a soil column under conditions of constant head while the soil column is under centrifugal forces in a geotechnical centrifuge. Accurate monitoring of the water mass transfer is also facilitated by the equipment. At the completion of a modelling sequence, the soil column may be partitioned for moisture ...


    By ASTM International

  • Contaminant removal from dry and wet sands by thermal desorption

    Infrared heating was used to determine the effects of temperature and moisture on the removal of selected organic compounds from contaminated sand matrices. Quartz sand was used as a chemically inert surrogate for soil to isolate the heat transfer and mass transfer effects without any chemical contribution from soil. The selected organic contaminants were 3-nitrobenzene sulphonic acid, sodium ...


    By Inderscience Publishers

  • Water and vapor movement with condensation and evaporation in a sandy column

    The diffusion of warm, humid air into an initially cold, dry, sandy column was analyzed to study the movement of water vapor and liquid water under nonisothermal and low water content conditions. The analysis was performed using the HYDRUS-1D code. While the water retention curve of sand was measured experimentally, the unsaturated hydraulic conductivity function was inversely estimated from the ...

  • Modeling the effects of climate change on forestry using SVFlux and SVHeat

    An application to which SVFlux / SVHeat was recently applied involves calculation of the change in soil suctions near the ground surface in a woodland area. The issue at stake was whether long term climate change will affect the forestry industry in Canada. If there is a change in average annual air temperature, how will this affect the distribution of water contents and soil suctions in the ...


    By SoilVision Systems Ltd.

  • Bacteria survival experiment for assessment of wastewater reuse in agriculture

    Growth and survival of a strain of E. coli were investigated in laboratory-scale soil columns under essentially static conditions in three Egyptian agricultural soils. One pore volume of a buffer solution of known cell concentration was applied to a set of identical columns at time zero, and individual columns were analyzed for viable E. coli colony forming units at times ranging ...


    By IWA Publishing

  • Solvent Recovery in Flexographic Printing: Fildes Pty Ltd

     Background Fildes Pty Ltd is a long established, family owned company, located in Sandringham, Victoria. Fildes manufacture quality labels, bags and retail packaging. The company currently supplies 90 per cent of the Australian pharmacy market, as well as packaging for a wide range of high profile retailers. The Process As part of the ...


  • Land Treatment

    Introduction Land Treatment is a full-scale bioremediation technology in which contaminated soils, sediments, or sludges are turned over (i.e., tilled) and allowed to interact with the soil and climate at the site. The waste, soil, climate, and biological activity interact dynamically as a system to degrade, transform, and immobilize waste constitutes. Wastes are periodically tilled to aerate the ...

  • Landfarming

    Introduction Landfarming is a full-scale bioremediation technology, which usually incorporates liners and other methods to control leaching of contaminants, which requires excavation and placement of contaminated soils, sediments, or sludges. Contaminated media is applied into lined beds and periodically turned over or tilled to aerate the waste. Soil conditions are often controlled to ...

  • Geosynthetics and their impact on Mechanistic-Empirical Pavement Design Guide (MEPDG)

    Abstract The impact of geosynthetics in a pavement structure will skew the estimate of damage over time, due to pavement distresses if appropriate testing has not been conducted on them. This article speaks to how geosynthetics can be incorporated into the MEPDG to ascertain how a design will be affected due to load (traffic) and environmental (climate) stresses. It has been ...


    By Nilex

  • Compost Operators Forum · Modeling a Compost Facility

    GEORGIA leads the nation in poultry production, processing nearly 1.5 billion birds a year. A majority of the poultry operations are concentrated in north Georgia. With over 1.5 million tons of poultry litter produced on an annual basis, some of the resulting issues facing the poultry production industry include: Reduced land area on farms to apply increasing amounts of litter; Increasing buffer ...


  • In Situ electromagnetic heating for hydrocarbon recovery and environmental remediation

    Introduction Thermal recovery methods, as applied in heavy oil and oil sand deposits, and in environmental remediation, have the common objective of accelerating the hydrocarbon recovery process. Raising the temperature of the host formation reduces the oil and bitumen viscosity, and, in environmental remediation, increases vapour pressure. These effects assist in sweeping the substances ...


    By McMillan-McGee Corp.

  • Understanding Challenging Applications for Improved Metal Detection

    In the food industry, certain products can act like metal contaminants, a phenomenon known as ‘product effect.’ This is where the type of product being inspected can hinder the ability of inspection technology to correctly identify metal. At best this can lead to unacceptable false reject levels, at worst it can result in metal contaminated product leaving the production facility. ...


    By Mettler - Toledo Int. Inc

  • Heavy metal & hydrocarbon contaminated sludge

    Solidification of Heavy Metal & Hydrocarbon Contaminated Sewage Sludge Client: North Lanarkshire Council Project Managers: Jacobs Challenge: The former sewage treatment works were decommissioned in the 1970’s. It is thought that during the closure process, demolition material originating from the ...


    By Soilutions Ltd

  • A.E.S. 1977 paper to with plating emission problems

    A.E.S. PAPER The following paper has NOT been altered whatsoever. Some notes a) A.E.S. stands for American Electroplating Society. b) the mention of l¼ million cfm is now incorrect as it is well over 3 million cfm c) The Grandview E.C.E. scrubber is a condensed name for Eliminate, Coalesce, Eliminate …. and this design is called by various names such as LMS …low micron scrubber and LMITS …low ...


  • Intelligent electric valve actuation on China’s West-East Pipeline - Case Study

    Overview The West-East Pipeline (WEPP) network is described as the largest and most significant gas industry project ever planned in China. Intended for the development of the western regions in China, the project involves construction of four gas pipelines connecting the eastern markets of China with the western resources. Thousands of kilometres of pipelines travel along varied terrains ...


    By Rotork

  • Dynamic Air Quality Solutions - Celebrating Thirty Years!

    This year we are very pleased to celebrate the thirtieth anniversary of the first one-inch polarized-media electronic air cleaner. It was thirty years ago that the first polarized-media electronic air cleaner, produced under our “Dynamic Air Cleaner” brand, was introduced. As with many high-efficiency filtration products, polarized media has its roots in industrial applications. ...

  • Aquantum Slides to Victory with Xylem

    When it comes to winter sports, some things are essential but nothing perhaps more so than snow and, in this instance, ice. As with many sports, conditions have to be right, with too many moisture and temperature fluctuations posing a real risk to the safety of athletes. For engineering company Aquantum, this was a primary concern for the bobsleigh track in Sochi, ...


    By LOWARA - a Xylem brand

  • The most efficient distance between two points

    When bulk material characteristics, process parameters or space restrictions call for a flexible screw conveyor Deciding on the single most efficient method to move your material from point A to point B is a matter of simple deduction: just match your material flow characteristics, process parameters and space limitations to the performance windows and dimensional restrictions of ...


    By Flexicon Corporation

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