Modeling the effects of plants on the bioremediation of contaminated soil and ground water

1993 ◽  
Vol 12 (1) ◽  
pp. 67-75 ◽  
Author(s):  
L. C. Davis ◽  
L. E. Erickson ◽  
E. Lee ◽  
J. F. Shimp ◽  
J. C. Tracy
Keyword(s):  
Ground Water ◽  
Contaminated Soil

TCE Removal from Contaminated Soil and Ground Water 1

2019 ◽  
pp. 87-99 ◽  
Author(s):  
Hugh H. Russell ◽  
John E. Matthews ◽  
Guy W. Sewell
Keyword(s):  
Ground Water ◽  
Contaminated Soil

Microbial Transformations of Azaarenes in Creosote-Contaminated Soil and Ground Water: Laboratory and Field Studies

1988 ◽  
Vol 20 (11-12) ◽  
pp. 17-23 ◽  
Author(s):  
Wilfred E. Pereira ◽  
Colleen E. Rostad ◽  
David M. Updegraff ◽  
Jon L. Bennett
Keyword(s):  
Ground Water ◽  
Contaminated Soil ◽  
Isotope Labeling ◽  
Microbial Transformation ◽  
Wood Preservative ◽  
Transformation Products ◽  
Gas Chromatography Mass Spectrometry ◽  
Experimental Conditions ◽  
Hydroxylation Reaction ◽  
Contaminated Aquifers

Azaarenes or aromatic nitrogen heterocycles are a class of compounds found in wood-preservative wastes containing creosote. The fate and movement of these compounds in contaminated aquifers is not well understood. Water-quality studies in an aquifer contaminated with creosote near Pensacola, Florida, indicated that ground water was contaminated with several azaarenes and their oxygenated and alkylated derivatives, suggesting that these oxygenated compounds may be products of microbial transformation reactions. Accordingly, laboratory studies were designed to investigate the fate of these compounds. Under aerobic conditions, soil pseudomonads isolated from creosote-contaminated soil converted quinoline to 2(lH)quinolinone that subsequently was degraded to unknown products. A methanogenic consortium isolated from an anaerobic sewage digestor, in presence of ground-water and creosote-contaminated soil, converted quinoline, isoquinoline, and 4-methylquinoline to their respective oxygenated analogs. In addition, N-, C-, and O-methylated analogs of oxygenated azaarenes were identified by gas chromatography-mass spectrometry (GC-MS) in anaerobic cultures. Under the experimental conditions, 2-methylquinoline was biorefractory. Presence of similar biotransformation products in anaerobic cultures and contaminated ground water from the Pensacola site provided further evidence that these compounds indeed were microbial transformation products. Stable isotope labeling studies indicated that the source of the oxygen atom for this hydroxylation reaction under aerobic and anaerobic conditions was water. A mechanism was proposed for this hydroxylation reaction. Whereas parent azaarenes are biodegradable in both anaerobic and aerobic zones, oxygenated and alkylated analogs are more biorefractory and, hence, persistent in anaerobic zones of contaminated aquifers.

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.

scholarly journals A Review on Biodegradation and Biotransformation of Explosive Chemicals

2018 ◽  
Vol 3 (11) ◽  
pp. 58-65 ◽  
Author(s):  
Thankgod Ositadinma Ndibe ◽  
Benthai Benjamin ◽  
Winnie Chuno Eugene ◽  
Johnson John Usman
Keyword(s):  
Natural Resources ◽  
Ground Water ◽  
Contaminated Soil ◽  
Natural Environment ◽  
Biological Treatment ◽  
Military Training ◽  
Training Activities ◽  
Living Organisms ◽  
Explosive Chemicals

Military training activities as well as manufacturing and decommissioning operations, lead to the generation of large quantities of explosive chemicals. Detonation and disposal of these explosive chemicals contaminate soil and ground water, thus posing a threat to living organisms and natural resources. The most commonly used explosives in artillery shells, bombs, grenades and other munitions are 2,4,6-Trinitrotoluene (TNT), Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX). Due to their recalcitrant nature, toxicity and persistence in the environment, the study of their biodegradation and biotransformation is paramount. This paper reviews the chemistry, fate, degradation and transformation of this explosive chemicals in the natural environment. Emphasis is placed on TNT, RDX and HMX. This review will help scientists to adopt strategies and develop optimum biological treatment scheme for the in situ bioremediation of explosives-contaminated soil especially at firing/impact ranges.

IN SITU CHEMICAL OXIDATION FOR REMEDIATION OF CONTAMINATED SOIL AND GROUND WATER

2000 ◽  
Vol 2000 (10) ◽  
pp. 203-224 ◽  
Author(s):  
Robert L. Siegrist ◽  
Michael A. Urynowicz ◽  
Olivia R. West ◽  
Michelle L. Crimi ◽  
Amanda M. Struse ◽  
...  
Keyword(s):  
Ground Water ◽  
Contaminated Soil ◽  
Chemical Oxidation
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