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Title: Integrated Field, Laboratory, and Modeling Studies to Determine the Effects of Linked Microbial and Physical Spatial Heterogeneity on Engineered Vadose Zone Bioremediation

Technical Report ·
DOI:https://doi.org/10.2172/820943· OSTI ID:820943

While numerous techniques exist for remediation of contaminant plumes in groundwater or near the soil surface, remediation methods in the deep vadose zone are less established due to complex transport dynamics and sparse microbial populations. There is a lack of knowledge on how physical and hydrologic features of the vadose zone control microbial growth and colonization in response to nutrient delivery during bioremediation. Yet pollution in the vadose zone poses a serious threat to the groundwater resources lying deeper in the sediment. While the contaminants may be slowly degraded by native microbial communities, microbial degradation rates rarely keep pace with the spread of the pollutant. It is crucial to increase indigenous microbial degradation in the vadose zone to combat groundwater contamination.

Research Organization:
Oregon State University (US)
Sponsoring Organization:
(US)
DOE Contract Number:
FG07-99ER62887
OSTI ID:
820943
Report Number(s):
DOE/ER/82887; EMSP 70165; TRN: US200407%%90
Resource Relation:
Other Information: PBD: 26 Jan 2004
Country of Publication:
United States
Language:
English