skip to main content
Idioma:
Primo Search
Clear Search Box
Search in: Busca Geral
Busca Avançada
Busca por Índices
Tipo de recurso Mostra resultados com: Mostra resultados com: Índice

Air sparging: Practical lessons from the field and the lab

Lundegard, P.D.

Ground Water; (United States), Vol.32:5 [Periódico revisado por pares]

United States

Sem texto completo

Citações Citado por
  • Título:
    Air sparging: Practical lessons from the field and the lab
  • Autor: Lundegard, P.D.
  • Assuntos: BENCH-SCALE EXPERIMENTS ; CLEANING ; COMPUTERIZED SIMULATION ; DECONTAMINATION ; ENVIRONMENTAL SCIENCES ; FIELD TESTS ; FLUID FLOW ; GROUND WATER ; HYDROGEN COMPOUNDS ; IN-SITU PROCESSING ; ORGANIC COMPOUNDS ; OXYGEN COMPOUNDS ; PROCESSING ; REMEDIAL ACTION ; SIMULATION ; TECHNOLOGY ASSESSMENT ; TESTING ; WATER 540250 -- Environment, Terrestrial-- Site Resource & Use Studies-- (1990-)
  • É parte de: Ground Water; (United States), Vol.32:5
  • Notas: None
    CONF-9410209--
  • Descrição: In this study, computer simulations of multiphase fluid flow surrounding sparge wells, as well as innovative field geophysical methods, have been employed to investigate the physical behavior of air sparging systems and the significance of conventional monitoring data. Field tests and simulations demonstrate the initial air injection is followed by transient system behavior during which the region of air flow first expands and then collapses partially once air breaks through to the unsaturated zone. These transient phases can last from hours to months or longer. For pilot testing it is important to realize that the radius of influence during transient behavioral phases may differ considerably from the radius at steady state. Furthermore, some monitoring parameters, such as water table mounding and other pressure measurements, will respond beyond the actual limits of air flow. The field and simulation studies demonstrate that the ambiguity of conventional monitoring data is a function of various factors which include their indirect relationship to air flow in the saturated zone, the transient aspects of pressure and water table changes, and differences in the controls on air flow within the saturated and unsaturated zones. It is also shown that water table mounding is generally a transient phenomenon that dissipates in time. As a result, the potential for water table mounding to cause undesired contaminant displacement is much less than commonly thought.
  • Editor: United States
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.