tce bioremediation

Enhancing Bioremediation through In Situ Sorption Marco Petrangeli Papini Pagina 8 Groundwater contamination: long term monitoring data L-1 0 100 200 300 400 500 600 700 PCE CSC = 1 1 g L OV2 data L-1 0 1 1 10 100 1000 PCE CSC = 1 1 g L OV2 data L-1 0 200 400 600 800 TCE CSC = 1 5 g L B2M data L-1 1 10 100 1000 TCE CSC = 1 5 g L B2M CAP 18 ME Anaerobic Bioremediation Product: A New Substrate for In Test 1 TCE was degraded approximately 50% faster with CAP 18 ME than with CAP 18 while in Test 2 the difference was smaller The average degradation rates for the two tests were 0 34 day-1 k (corresponding to a half-life of 2 1 days) for CAP 18 and 0 70 day-1 (corresponding to a half-life of 1 1 days) for CAP 18 ME

Bioremediation

Bioremediation Olfactory Sensensor Shinohara Group Lectures Theses Contact バイオレメディエーション のなのとに、は々なをするようになった。そのにはにしてなものもまれ、となっているのとなってしまっているも

Emulsified Vegetable Oil (EVO) is commonly added as a slowly fermentable substrate to stimulate in situ anaerobic bioremediation This article summarizes information about EVO transport in the subsurface consumption during anaerobic bioremediation and methods for effectively distributing EVO throughout the target treatment zone

15 11 2011contaminated area which contained high amounts of PCE and TCE A pilot study was undertaken to validate the use of enhanced anaerobic bioremediation to biodegrade the primarily dissolved-phase solvent plume 3-D Microemulsion an injectable 3-stage electron donor release material was selected as the preferred bioamendment to accelerate the anaerobic biodegradation process

ABSTRACT Groundwater at an industrial site is contaminated with γ -hexachlorocyclohexane (HCH) and α-HCH (i e lindane) (0 3-0 5 ppm) Other contaminants in the 1-15 ppm range include 1 2 4-trichlorobenezene (TCB) 1 2-dichlorobenzene (DCB) 1 3-DCB 1 4-DCB chlorobenzene (CB) benzene trichloroethene (TCE) and cis-1 2-dichloroethene (cDCE) The aquifer consists of a shallow layer of

TCE bioremediation could reduce the risk of human exposure to VC a carcinogenic TCE degradation byproduct (137 pages) v PUBLIC ABSTRACT Comparing the Effect of Carbon Sources Lactate and Whey on Biological Reductive Dechlorination of TCE in Laboratory Flow Through Columns Sarah M Kissell Trichloroethylene (TCE) is a chlorinated solvent most commonly used as an industrial

Bioremediation of Chlorinated Ethenes: pH Effects Novel

Bioremediation of Chlorinated Ethenes: pH Effects Novel Dechlorinators and Decision-Making Tools Yi Yang University of Tennessee Knoxville yyang35vols utk edu This Dissertation is brought to you for free and open access by the Graduate School at Trace: Tennessee Research and Creative Exchange It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of

19 05 2009The accurate measurement and prediction of in situ rates of transformation obtainable through the application of methods developed by this research are critical to the improvement of risk assessment capabilities the development and validation of bioremediation strategies and determination of the potential for bioremediation of TCE-contaminated sites

In this study a trichloroethylene (TCE)-spill site was selected to assess the feasibility of enhanced in situ anaerobic bioremediation of TCE-contaminated groundwater using hydrogen as the electron donor produced from nanoscale zero-valent iron (nZVI) Results of hydrogen production experiments show that nZVI had a good efficiency on hydrogen production

Pseudomonas putida F1 (Bacteria 6 2 ) is a versatile environmental isolate that is capable of growth on several aromatic hydrocarbons including benzene toluene ethylbenzene and p -cymene Its broad substrate toluene dioxygenase has been widely utilized in biocatalytic syntheses of chiral chemicals as well as in the metabolism and detoxification of TCE and in the production of indigo from

Our results show the efficacy of the dual augmenta-tion strategy for MTBE and TCE bioremediation in the presence of heavy metals Keyphrases tce pollution aerobic bioremediation original paper dual augmentation heavy metal-contaminated soil heavy metal metal-resistant strain soil microcosm characterized several bacterial strain synergetic relationship bacterial isolates dual augmenta-tion

Approaches applied to the remediation of TCE and other DNAPLs include bioremediation electrokinetics flushing technologies (cosolvent/alcohol flooding surfactant flushing) in situ oxidation monitored natural attenuation phytoremediation (steam injection electrical heating in situ vitrification) volatilization technologies (soil vapor extraction air sparging in-well stripping) and

Laboratory microcosm studies of cores taken from the demonstration site at Edwards AFB (see the companion project titled Full-Scale Evaluation of In-Situ Bioremediation of Chlorinated Solvent Groundwater Contamination) have shown that the microorganisms at the site are capable of aerobically cometabolizing TCE in the presence of either phenol or toluene From studies at Moffett Field it was

Bioremediation of Water Contaminated with BTEX TPH and TCE under Different Environmental Conditions by Lei Cheng Keng (Elena) A thesis submitted for partial fulfillment of the requirements for the degree of Master of Science in Civil Engineering 2010 Faculty of Science and Technology University of Macau 2 Bioremediation of Water Contaminated with BTEX TPH and TCE under Different

BIODEGRADATION AND BIOREMEDIATION OF

ABSTRACT Groundwater at an industrial site is contaminated with γ -hexachlorocyclohexane (HCH) and α-HCH (i e lindane) (0 3-0 5 ppm) Other contaminants in the 1-15 ppm range include 1 2 4-trichlorobenezene (TCB) 1 2-dichlorobenzene (DCB) 1 3-DCB 1 4-DCB chlorobenzene (CB) benzene trichloroethene (TCE) and cis-1 2-dichloroethene (cDCE) The aquifer consists of a shallow layer of

Phytoremediation Description Phytoremediation is a bioremediation process that uses various types of plants to remove transfer stabilize and/or destroy contaminants in the soil and groundwater There are several different types of phytoremediation mechanisms These are: 1 Rhizosphere biodegradation In this process the plant releases natural substances through its roots supplying

Bioremediation of Chlorinated Ethenes: pH Effects Novel Dechlorinators and Decision-Making Tools Yi Yang University of Tennessee Knoxville yyang35vols utk edu This Dissertation is brought to you for free and open access by the Graduate School at Trace: Tennessee Research and Creative Exchange It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of

Two separate 24 h pulses of TCE (109 ppb and 85 ppb) one week apart were pumped through the system at a flow velocity of 15 mm h1 no TCE ( 0 5 ppb) was detected on the downstream side of the microbial filter Subsequent excavation of the wet sand confirmed the existence of a TCE-bioactive zone 21 days after it had been created An enhanced longevity of the cellular soluble-form methane

bioremediation Pseudomonas putida: dalla bioremediation alla lotta al tabagismo Agosto 20 2018 Agosto 22 2018 di Simone Rinaldi Pseudomonas putida (Fig 1) un microrganismo procariote gram negativo ben conosciuto da chi si occupa di biotecnologie: infatti naturalmente dotato di numerosi enzimi capaci di degradare efficacemente sostanze organiche anche molto diverse tra loro alcune

Tracer Test Setting – TCE Source Area TCE Concentrations (mg/L) (Initial Pumping -1 gpm) Overburden (silt and cla y) Extr Well Inj Well Hydraulic Gradient Component Directions 6 0 15 10 1 22 TCE conc contours 9 0 1 0 01 Siltstone and Shale Siltstone and Sandstone Siltstone Br-Breakthrough Curve Mass = 0 002 0 0 0020 T racer Injection

Solvent Bioremediation MARK HARKNESS OBG Bioremediation of chlorinated solvents in high sulfate groundwater is a challenging proposition The addition of electron donors required to provide energy for the anaerobic bacteria that dechlorinate trichloroethylene (TCE) and other solvents is also used by sulfate reducing bacteria resulting in the production of hydrogen sulfide At elevated

In total TCE mass discharge was reduced by over 97 percent from the DNAPL source area After decades of steady but slow treatment of the contaminated site remediation efforts conducted in the past five years met EPA goals and resulted in the upcoming turnover of the site back to the state of Washington The Well 12A project team achieved the record of decision goals and made more

Tracer Test Setting – TCE Source Area TCE Concentrations (mg/L) (Initial Pumping -1 gpm) Overburden (silt and cla y) Extr Well Inj Well Hydraulic Gradient Component Directions 6 0 15 10 1 22 TCE conc contours 9 0 1 0 01 Siltstone and Shale Siltstone and Sandstone Siltstone Br-Breakthrough Curve Mass = 0 002 0 0 0020 T racer Injection

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