Gaois

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2 results

  1. SCIENCE|natural and applied sciences|earth sciences|soil science

    #637946

    IATE #1913560
    spreachallú aeir Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    air sparging | in situ air stripping | in situ volatilisation
    en
    Definition process of injecting air directly into groundwater, thus causing volatilisation of contaminants and enhancing biodegradation Reference "COM-Terminology Coordination, based on: Center for Public Environmental Oversight. Technology Tree > Glossary > 'Air Sparging' (18.7.2023)"
    traitement par aération | barbotage
    fr
    Definition technique de dépollution qui consiste à injecter de l’air dans les sols ou dans les eaux afin soit d’entraîner dans l’atmosphère des composés volatils, soit de faciliter la biodégradation aérobie des polluants organiques qu’ils contiennent Reference "FranceTerme (JORF du 4.8.2022) > Traitement par aération (27.1.2023)"
  2. ENVIRONMENT|environmental policy|pollution control measures|pollution control · SCIENCE|natural and applied sciences|earth sciences|soil science

    #617352

    IATE #1069634
    eastóscadh gaile Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    eastóscadh gail ithreach Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    vapour extraction | soil vapour extraction | soil vacuum extraction | SVE | in situ soil venting | soil venting | SV | soil vapour stripping | SVS | vapor extraction | soil vapor extraction | soil vapor stripping
    en
    Definition physical treatment process for in-situ remediation of volatile contaminants in vadose zone (unsaturated) soils using vacuum blowers and extraction wells to induce gas flow through the subsurface and collecting contaminated soil vapour which is subsequently treated above ground Reference "COM-Terminology Coordination, based on: Wikipedia > Soil vapor extraction (18.7.2023)"
    Comment 1. The hazardous substances to be removed must be volatile or at least semivolatile (a vapour pressure of 0.5 torr or greater); 2. The hazardous substances to be removed must have relatively low water solubility or the soil moisture content must be quite low; 3. The hazardous substances to be removed must be in the vadose zone (above the groundwater table) or, in the case of LNAPLs, floating on it; 4. The soil must be sufficiently permeable to permit the vapour extraction wells to draw air through all of the contaminated domains at a reasonable rate.--------------------------------------------Soil vapour extraction couples vapour extraction (recovery wells) with blowers or vacuum pumps to remove vapours from the vadose zone and, therefore, reduce the levels of residual soil contaminants.