vadose soils News

  • Bioremediation in vadose zone

    EOS Remediation, LLC, a developer and manufacturer of advanced technologies for groundwater restoration, and Savannah River Nuclear Solutions, LLC announced that they have signed an Exclusive Patent License Agreement. This royalty-based agreement grants EOS Remediation an exclusive world-wide license to manufacture, use, and sell the technology known as VOS™, a “Thixotropic Gel for Vadose Zone ...


    By EOS Remediation, LLC

  • Tersus Environmental Secures Patent Rights for Vadose Zone Remediation by Barometric Pumping

    Tersus Environmental, LLC, a developer and marketer of advanced, innovative technologies for the remediation of soil and groundwater, and Savannah River Nuclear Solutions, LLC (SRNS) announced that they have signed an Exclusive Patent License Agreement. This royalty-based agreement grants Tersus Environmental an exclusive worldwide license to manufacture, use, and sell the technology known as ...


    By Tersus Environmental, LLC

  • Proposed new ASTM vadose zone standard to aid in vapor intrusion evaluations

    A proposed new practice being developed by ASTM Subcommittee D18.21 on Ground Water and Vadose Zone Investigations will cover techniques for actively collecting soil gas samples from the vadose zone beneath buildings. WK18835, Practice for Active Soil Gas Sampling in the Vadose Zone for Vapor Intrusion Evaluations, is under the jurisdiction of ASTM International Committee D18 on Soil and Rock. ...


    By ASTM International

  • EOS Remediation secures rights for vadose zone remediation by physical and biological means

    EOS Remediation, LLC, a developer and manufacturer of advanced technologies for groundwater restoration, and Savannah River Nuclear Solutions, LLC announced that they have signed an Exclusive Patent License Agreement.  This royalty-based agreement grants EOS Remediation an exclusive world-wide license to manufacture, use, and sell the technology known as VOS™, a “Thixotropic Gel for Vadose Zone ...


    By EOS Remediation, LLC

  • ASTM D7758 - 11 Standard Practice for Passive Soil Gas Sampling in the Vadose Zone for Source Identification, Spatial Variability Assessment, Monitoring, and Vapor Intrusion Evaluations

    Passive soil gas samplers are a minimally invasive, easy-to-use technique in the field for identifying VOCs and SVOCs in the vadose zone. Similar to active soil gas and other field screening techniques, the simplicity and low cost of passive samplers enables them to be applied in large numbers, facilitating detailed mapping of contamination across a site, for the purpose ...


    By ASTM International

  • Measuring global soil changes

    Global change is increasingly affecting important terrestrial ecosystem functions such as the filtering and buffering capacity of soils, the supply of clean water, soil fertility, and consequently, the production of food, feed, and fiber. Recent studies and reports from the United Nations indicate that water and soil resources are both heavily under pressure. Worldwide about 2 billion ha of land ...

  • Restoring coastal wetlands? check the soil

    Rising sea levels and coastal development are threatening coastal freshwater wetlands with saltwater intrusion. While most ecosystem restoration projects have focused on surface water and groundwater, new research finds that conditions in the vadose zone, the unsaturated soil below the surface but above the water table, are of particular importance to seedling survival in coastal floodplain ...

  • Sophisticated soil analysis for improved land use

    Soil variation occurs across multiple geographic scales ranging from vast climatic regions of the Earth to a 50 acre farm field to the molecular world of soil nano-particles in a pinch of soil. For example, in a forest or an agricultural field, soil properties vary from the summit of a hill down to the base. Within a single soil aggregate that may be less than a quarter inch in diameter, there ...

  • Two key factors control phosphorus movement from soil to groundwater

    New insights into how phosphorus leaches into groundwater could help reduce its potential impact on water and the environment, a UF/IFAS scientist says. Phosphorus poses an environmental threat when it travels from soils to open water bodies, including lakes, streams and rivers. When too much phosphorus is applied to soils, the ground cannot hold all of the chemical, said Gurpal Toor, an ...

  • ASTM D7100 - 11 Standard Test Method for Hydraulic Conductivity Compatibility Testing of Soils with Aqueous Solutions

    1. Scope 1.1 This test method covers hydraulic conductivity compatibility testing of saturated soils in the laboratory with aqueous solutions that may alter hydraulic conductivity (for example, waste related liquids) using a flexible-wall permeameter. A hydraulic conductivity test ...


    By ASTM International

  • Climate change could affect groundwater recharge, scientists say

    (AXcess News) Washington - Elevated levels of carbon dioxide (CO2) in the Earth's atmosphere could seriously impact air, weather and vegetation. Now a scientist with the Agricultural Research Service (ARS) is taking a closer look at what could happen underground. If atmospheric CO2 levels double within this century, as many climate models predict, some areas could experience large increases in ...


    By Axcess News

  • How vulnerable is our groundwater?

    When water travels through soil and bedrock to the water table, it carries minerals, nutrients or chemicals from the surface with it. Environmental research is increasingly concerned with preferential flow, or the movement of water through pores and cracks at a faster rate and bypassing most of the surrounding material, either soil or fractured rock. A special section on preferential flow ...

  • Vapor Intrusion

    A proposed new ASTM International standard will link easy to use, cost-effective and nonintrusive passive sampling with concentration data to measure vapor intrusion. WK40037, Guide for Determining Concentration Values from Groundwater, Air and Soil Gas Using Adsorbent-Based, Passive Samplers, is being developed by Subcommittee D18.21 on Groundwater and ...


    By ASTM International

  • ASTM D6009 - 12 Standard Guide for Sampling Waste Piles

    This guide is intended to provide guidance for sampling waste piles. It can be used to obtain samples for waste characterization related to use, treatment, or disposal; to monitor an active pile; to prepare for closure of the waste pile; or to investigate the contents of an abandoned pile. Techniques used to sample include both in-place evaluations of the ...


    By ASTM International

  • Environmental Cleanup Technology Honored

    A technology that uses “green” chemistry to help microbes break down contaminants in soil before they reach the groundwater has earned kudos from the editors of Environmental Protection website as 2011 Soil & Groundwater New Product of the Year. The technology, which was invented by the U.S. Department of Energy’s Savannah River National Laboratory, and licensed and ...


    By EOS Remediation, LLC

  • Withdrawn Standard: ASTM D420-98(2003) Standard Guide to Site Characterization for Engineering Design and Construction Purposes (Withdrawn 2012)

    This guide refers to ASTM methods by which soil, rock, and ground water conditions may be determined. The objective of the investigation should be to identify and locate, both horizontally and vertically, significant soil and rock types and ground water ...


    By ASTM International

  • Oxidation of sulfides in waste rock piles

    Oxidation of sulfides in mining wastes produces high concentrations of sulfate, iron, and other metals and frequently also very low pH values. Compared with fine-grain mine tailings produced in ore treatment by flotation and other techniques, waste rock is just displaced material comprising large particles deposited into piles. In waste rock piles with high permeability and sulfide content, the ...

  • ASTM D6063 - 11 Standard Guide for Sampling of Drums and Similar Containers by Field Personnel

    1. Scope 1.1 This guide covers information, including flow charts, for field personnel to follow in order to collect samples from drums and similar containers. 1.2 The purpose of this guide is to help field personnel in planning and obtaining samples from drums and similar containers, using equipment and techniques that will ensure that the ...


    By ASTM International

  • RegenOx remediation technology wins coveted 2006 ICU innovation award for Regenesis

    Regenesis, a specialty developer and manufacturer of advanced technologies for groundwater resources, has won the 2006 ICU Innovation Award for RegenOx, a breakthrough in-situ chemical oxidation technology that safely destroys high concentrations of recalcitrant soil and groundwater contaminants such as industrial degreasers and petroleum hydrocarbons. The prestigious ICU Innovation Awards are ...


    By REGENESIS

  • Volatile dense chemical liquids in groundwaters can produce slowly bubbling gas flow

    Despite decades of research, the cleanup of soil and groundwater contaminated by dense non-aqueous phase liquids (DNAPLs) used in numerous industrial applications remains a daunting challenge. These compounds, including degreasers, dry cleaning fluids, creosote, solvents and coal tar, when present below ground can generate hazardous concentrations for decades to centuries as they dissolve into ...

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