A bioengineering system for in situ bioremediation of contaminated groundwater

1997 ◽  
Vol 18 (2-3) ◽  
pp. 189-197 ◽  
Author(s):  
R B Knapp ◽  
B D Faison
Keyword(s):  
Contaminated Groundwater ◽  
In Situ Bioremediation

On-site and in situ bioremediation of wood-preservative contaminated groundwater

2000 ◽  
Vol 42 (5-6) ◽  
pp. 371-376 ◽  
Author(s):  
J.A. Puhakka ◽  
K.T. Järvinen ◽  
J.H. Langwaldt ◽  
E.S. Melin ◽  
M.K. Männistö ◽  
...  
Keyword(s):  
Iron Oxidation ◽  
Wood Preservative ◽  
Pilot Scale ◽  
High Rate ◽  
Contaminated Groundwater ◽  
Groundwater Temperature ◽  
In Situ Bioremediation ◽  
Contaminated Aquifer ◽  
Fluidized Bed Process

This paper reviews ten years of research on on-site and in situ bioremediation of chlorophenol contaminated groundwater. Laboratory experiments on the development of a high-rate, fluidized-bed process resulted in a full-scale, pump-and-treat application which has operated for several years. The system operates at ambient groundwater temperature of 7 to 9°C at 2.7 d hydraulic retention time and chlorophenol removal efficiencies of 98.5 to 99.9%. The microbial ecology studies of the contaminated aquifer revealed a diverse chlorophenol-degrading community. In situ biodegradation of chlorophenols is controlled by oxygen availability, only. Laboratory and pilot-scale experiments showed the potential for in situ aquifer bioremediation with iron oxidation and precipitation as a potential problem.

scholarly journals Feasibility study of in-situ bioremediation for nitrobenzene-contaminated groundwater

2017 ◽  
Vol 17 (4) ◽  
pp. 1160-1167 ◽  
Author(s):  
Na Liu ◽  
Yue Wang ◽  
Yonglei An ◽  
Feng Ding ◽  
Xiaolong Yu ◽  
...  
Keyword(s):  
Simulation Experiment ◽  
Laboratory Simulation ◽  
Contaminated Groundwater ◽  
Site Conditions ◽  
In Situ Bioremediation ◽  
Degrading Bacterium ◽  
Bacterium Strain ◽  
Negative Factors ◽  
Sufficient Oxygen

Although many studies have simulated in-situ bioremediation of contaminated groundwater, most of them have not considered hydrochemical conditions and indigenous microorganisms, thus potentially rendering results inapplicable to actual in-situ groundwater bioremediation projects. This study focused on a nitrobenzene-contaminated groundwater site located in Jilin City, China. The actual nitrobenzene-contaminated groundwater was taken from Jilin City to simulate in-situ groundwater bioremediation in the laboratory. The feasibility of in-situ bioremediation for nitrobenzene-contaminated groundwater was studied according to actual site conditions and characteristics of nitrobenzene-degrading microorganisms in groundwater. The results showed that nitrobenzene-degrading bacterium strain NB1 was the dominant species that could effectively and rapidly degrade nitrobenzene by a partial reductive pathway. No negative factors on the growth or degrading function of this strain in groundwater could be detected. During a laboratory simulation experiment, combined in-situ bioremediation technologies, namely air sparging and bioaugmentation, could readily remove approximately 89.56% of nitrobenzene from groundwater without adding nutrients; oxygen was found to be the important growth factor for strain NB1. As the substrate of nitroreductase, encoded by the nitrobenzene nitroreductase (nbzA) gene, nitrobenzene was likely to significantly affect the expression of this gene. In conclusion, in-situ bioremediation is a feasible way to solve the problem of nitrobenzene-contaminated groundwater in Jilin City as long as sufficient oxygen and biomass of strain NB1 is ensured.

Potential for In Situ Bioremediation of a Low-pH, High-Nitrate Uranium-Contaminated Groundwater

2003 ◽  
Vol 12 (6) ◽  
pp. 865-884 ◽  
Author(s):  
Evgenya S. Shelobolina ◽  
Kathleen O'Neill ◽  
Kevin T. Finneran ◽  
Lory A. Hayes ◽  
Derek R. Lovley
Keyword(s):  
Low Ph ◽  
Contaminated Groundwater ◽  
In Situ Bioremediation

scholarly journals In-situ bioremediation of TCE-contaminated groundwater

1998 ◽  
Author(s):  
B.J. Travis ◽  
N.D. Rosenberg
Keyword(s):  
Contaminated Groundwater ◽  
In Situ Bioremediation

Spatial Distribution of Geobacteraceae and Sulfate-Reducing Bacteria During In Situ Bioremediation of Uranium-Contaminated Groundwater

2013 ◽  
Vol 23 (2) ◽  
pp. 31-49 ◽  
Author(s):  
Shabir A. Dar ◽  
Hui Tan ◽  
Aaron D. Peacock ◽  
Peter Jaffe ◽  
Lucie N'Guessan ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Sulfate Reducing Bacteria ◽  
Contaminated Groundwater ◽  
In Situ Bioremediation ◽  
Sulfate Reducing ◽  
Reducing Bacteria

Potential for In Situ Bioremediation of a Low-pH, High-Nitrate Uranium-Contaminated Groundwater

2003 ◽  
Vol 12 (6) ◽  
pp. 865-884 ◽  
Author(s):  
Evgenya S. Shelobolina ◽  
Kathleen O'Neill ◽  
Kevin T. Finneran ◽  
Lory A. Hayes ◽  
Derek R. Lovley
Keyword(s):  
Low Ph ◽  
Contaminated Groundwater ◽  
In Situ Bioremediation
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