scholarly journals In-situ bioremediation of nitrate-contaminated ground water; a pilot test, Julesburg, Colorado, 1996-97

1998 ◽  
Keyword(s):  
Ground Water ◽  
Pilot Test ◽  
In Situ Bioremediation

A Pilot Test of Passive Oxygen Release for Enhancement of In Situ Bioremediation of BTEX-Contaminated Ground Water

1997 ◽  
Vol 17 (2) ◽  
pp. 93-105 ◽  
Author(s):  
Steven W. Chapman ◽  
Brian T. Byerley ◽  
David J. A. Smyth ◽  
Douglas M. Mackay
Keyword(s):  
Ground Water ◽  
Pilot Test ◽  
Oxygen Release ◽  
In Situ Bioremediation

scholarly journals Application of Combined In Situ Chemical Reduction and Enhanced Bioremediation to Accelerate TCE Treatment in Groundwater

2021 ◽  
Vol 11 (18) ◽  
pp. 8374
Author(s):  
Min-Hsin Liu ◽  
Chung-Ming Hsiao ◽  
Chih-En Lin ◽  
Jim Leu
Keyword(s):  
Ph Value ◽  
Chemical Reduction ◽  
Test Site ◽  
Electron Donors ◽  
Pilot Test ◽  
In Situ Bioremediation ◽  
Oil Emulsion ◽  
Emulsified Oil ◽  
Tce Degradation

Groundwater at trichloroethylene (TCE)-contaminated sites lacks electron donors, which prolongs TCE’s natural attenuation process and delays treatment. Although adding electron donors, such as emulsified oil, accelerates TCE degradation, it also causes the accumulation of hazardous metabolites such as dichloroethylene (DCE) and vinyl chloride (VC). This study combined in situ chemical reduction using organo-iron compounds with enhanced in situ bioremediation using emulsified oil to accelerate TCE removal and minimize the accumulation of DCE and VC in groundwater. A self-made soybean oil emulsion (SOE) was used as the electron donor and was added to liquid ferrous lactate (FL), the chemical reductant. The combined in situ chemical reduction and enhanced in situ bioremediation achieved favorable results in a laboratory microcosm test and in an in situ biological field pilot test. Both tests revealed that SOE+FL accelerated TCE degradation and minimized the accumulation of DCE and VC to a greater extent than SOE alone after 160 days of observation. When FL was added in the microcosm test, the pH value decreased from 6.0 to 5.5; however, during the in situ biological pilot test, the on-site groundwater pH value did not exhibit obvious changes. Given the geology of the in situ pilot test site, the SOE+FL solution that was injected underground continued to be released for at least 90 days, suggesting that the solution’s radius of influence was at least 5 m.

In Situ Bioremediation of Contaminated Ground Water 1

2019 ◽  
pp. 183-195
Author(s):  
J.L. Sims ◽  
J.M. Suflita ◽  
H.H. Russell
Keyword(s):  
Ground Water ◽  
In Situ Bioremediation

IN SITU BIOREMEDIATION OF PETROLEUM HYDROCARBON CONTAMINATED SOIL AND GROUND WATER

1995 ◽  
Vol 1995 (1) ◽  
pp. 910-911
Author(s):  
Douglas E. Jerger ◽  
Patrick M. Woodhull
Keyword(s):  
Water Treatment ◽  
Ground Water ◽  
Contaminated Soil ◽  
Petroleum Hydrocarbon ◽  
Treatment System ◽  
Hydraulic Control ◽  
In Situ Bioremediation ◽  
Sand And Gravel ◽  
Hydrocarbon Distribution

ABSTRACT OHM designed and installed an in situ bioremediation system with an above ground water treatment system at a petroleum hydrocarbon distribution and fuel facility. The remediation system consists of an infiltration trench system to deliver treated, amended ground water to the upper silty lens, and an injection well system to deliver water to the lower sand and gravel lens. A French drain is located downgradient of the groundwater injection systems to provide hydraulic control of the site. Recovered ground water is pumped to an on-site treatment system prior to re-injection.

In situ bioremediation of cyanide, PAHs and organic compounds using an engineered SEquenced REactive BARrier (SEREBAR)

2006 ◽  
Vol 14 (2) ◽  
pp. 478-482
Author(s):  
Jamie Robinson ◽  
Russell Thomas ◽  
Steve Wallace ◽  
Paddy Daly ◽  
Robert Kalin
Keyword(s):  
Organic Compounds ◽  
In Situ Bioremediation ◽  
Reactive Barrier

In Situ Bioremediation of Perchlorate in Groundwater

2009 ◽  
Author(s):  
Paul Hatzinger ◽  
Jay Diebold
Keyword(s):  
In Situ Bioremediation

In Situ Remediation of Explosives Contaminated Ground-Water with Sequential Reactive Treatment Zones

2001 ◽  
Author(s):  
Paul G. Tratnyek ◽  
Richard L. Johnson ◽  
Timothy L. Johnson ◽  
Rosemarie Miehr
Keyword(s):  
Ground Water ◽  
In Situ Remediation
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