remediation of contaminated sites

... Organisms, Remediation of Contaminated Environments, and Effects of Heavy Metals Co-Contamination on Bioremediation 185 Shukla Abha and Cameotra Swaranjit Singh Chapter Bioremediation of Crude Oil Contaminated ... Enhanced Oil Recovery (EOR) Processes and Bioremediation of Oil -Contaminated Sites summarizes the performance of each of the primary recovery mechanisms in terms of pressure decline rate, gas-oil ratio, ... Bioremediation of Oil -Contaminated Sites Fig Summary of Conventional Oil Recovery Processes 2.3 Enhanced Oil Recovery (EOR) processes EOR refers to the recovery of oil through the injection of...

Ngày tải lên: 27/06/2014, 00:20

... Organisms, Remediation of Contaminated Environments, and Effects of Heavy Metals Co-Contamination on Bioremediation 185 Shukla Abha and Cameotra Swaranjit Singh Chapter Bioremediation of Crude Oil Contaminated ... Enhanced Oil Recovery (EOR) Processes and Bioremediation of Oil -Contaminated Sites summarizes the performance of each of the primary recovery mechanisms in terms of pressure decline rate, gas-oil ratio, ... Bioremediation of Oil -Contaminated Sites Fig Summary of Conventional Oil Recovery Processes 2.3 Enhanced Oil Recovery (EOR) processes EOR refers to the recovery of oil through the injection of...

Ngày tải lên: 27/06/2014, 00:20

... major reports for the U.S Navy on remediation of the environment contaminated by petroleum products Her previous book, Bioremediation of Petroleum -Contaminated Sites, was published in 1992 by Lewis ... coverage of its application for contaminated soils The results of current research are combined with essential background information to cover all aspects of in situ and ex situ bioremediation of petroleum -contaminated ... Governing Selection of FBR vs MARS in the Treatment of Hazardous Water and Wastewater Composition of Diesel Fuel #2 Composition of Various Gasolines Components of Gasoline Composition of Gasoline Selected...

Ngày tải lên: 11/08/2014, 07:20

... simulates remediation techniques and allows assessment of the degradation potential of microbial populations and test of the efficiency of commercial bioremediation techniques Optimization of mass ... 1977) Some of these agents can affect the mobility of inorganic and organic constituents of the waste, even at low concentrations of the agents A number of factors affect the quality of a leachate ... Press LLC matrix of the compost It was not enhanced by the presence of specific microorganisms, the fertilizers, or the shift of pH of the compost Composting of service station soil contaminated with...

Ngày tải lên: 11/08/2014, 07:20

... Incubation Early Later System Disappearance of O2 Disappearance of NO3– Formation of Mn2+ Formation of Fe2+ Formation of S2– Formation of H2 Formation of CH4 Redox Potential (mv) +600 +500 +400 ... organics The mixing of uncontaminated soil with the contaminated is a means of increasing the extent and effectiveness of immobilization of chemical contaminants at hazardous waste sites It may also ... degrade 88% of the saturate fraction of an oil waste, 63% of the aromatic fraction, and 13% of the asphaltic fraction after days treatment During the treatment of oil sludge, the persistence of the...

Ngày tải lên: 11/08/2014, 07:20

... prevented detection of accumulation of as much as 15 to 20 cm (6 to in.) of iron sludge Between 400 to 500 kg of iron could accumulate in such a unit, over the course of a year of continuous running ... disposal of the contaminated soil Off-gas treatment may be required from SVE systems of air-stripping units to limit hydrocarbon discharge to the atmosphere Figure 6.4 is an illustration of a soil ... substantial cover of contaminated, unsaturated soil above the water table (at least 10 ft), and the contaminated soil must be pervious enough to permit a significant flow of air through the zone of contamination...

Ngày tải lên: 11/08/2014, 07:20

... amounts pipetted into each of three (or five) tubes of 10 mL of double-strength medium, 1-mL amounts (or mL of a 1:10 dilution) into each of three (or five) tubes of mL of single-strength medium, ... presence of hydrocarbons Thus, use of this type of medium may yield counts that are too high To determine counts of JP-5-utilizing bacteria, 0.1 mL of well water, or a dilution thereof, is spread ... nutrients added, or the test sites heated After years of bioremediation, the total amount of hydrocarbons decreased from a concentration of 15,000 to 35,000 mg/kg to a level of 3750 to 9400 mg/kg dry...

Ngày tải lên: 11/08/2014, 07:20

... of the hydrogeologic and geochemical characteristics of the area will permit full optimization of all selected remedial actions, maximum predictability of remediation effectiveness, minimum remediation ... for remediation technologies to use at sites contaminated with petroleum hydrocarbons (Ram, Bass, Falotico, and Leahy, 1993) It provides a structured progression of decision points consisting of ... reduce circulation of the groundwater (Lee, Wilson, and Ward, 1987) The plugging of well screens and the neighboring interstitial zones of an aquifer can be a direct result of biofilm generation...

Ngày tải lên: 11/08/2014, 07:20

... Biofix-immobilized cells degraded 14.8% of C12 and an average of 53.5% of C13 to C18 Drizit-immobilized cells degraded 24.5% of C12, 52.4% of C13, and an average of 91.2% of C14 to C18 This shows that ... inhibition of the utilization of both PAHs is called substrate antagonism Little is known about the biodegradation of complex mixtures of PAHs and the effect of one compound on the biodegradability of ... been used in the bioremediation of PAH -contaminated soil See Section 5.2.2.7 for a description of cell encapsulation methods and their application in bioremediation For bioremediation to be successful,...

Ngày tải lên: 11/08/2014, 07:20

... However, the principles of the reaction are the same 22 Reclamation of Contaminated Land Generation of hydrogen ion: Generation of base ion: Formation of salt: Formation of water: 3.4 HCl(aq) ... Lekkerkerk incident led to an inventory of seriously contaminated sites being drawn up in the early 1980s Dutch approaches to assessment and remediation of contaminated land have been very influential ... rehabilitation of brownfield sites, within the context of sustainable development of European cities, by the provision of an intellectual framework for coordinated research and development of tools’...

Ngày tải lên: 11/03/2014, 17:20

... of the chapter compares the performance of these technologies under a variety of conditions at contaminated sites Most of the remediation methods considered here fall unambiguously into one of ... inappropriate for sites where remediation must be achieved quickly, or where the rate of remediation is strongly dependent on the rate of air flow through the subsurface At many sites, the rate of contaminant ... number of vents is usually determined by the size of the contaminated area and the radius of influence (ROI) of the extraction vents Vents are situated so that their ROI overlap and encompass the contaminated...

Ngày tải lên: 14/03/2014, 19:20

... (O&M), 23 Organization, 23 Department of Defense, 24 Office of the Secretary of the Army, 26 Office of the Secretary of the Navy, 34 Office of the Secretary of the Air Force, 36 Processes, 37 Summary, ... Review of the Conduct of Operations for Remediation of Recovered Chemical Warfare Materiel from Burial Sites Copyright © National Academy of Sciences All rights reserved Remediation of Buried ... Remediation of Buried Chemical Warfare Materiel REMEDIATION OF BURIED CHEMICAL WARFARE MATERIEL Committee on Review of the Conduct of Operations for Remediation of Recovered Chemical...

Ngày tải lên: 30/03/2014, 15:20

... (O&M), 23 Organization, 23 Department of Defense, 24 Office of the Secretary of the Army, 26 Office of the Secretary of the Navy, 34 Office of the Secretary of the Air Force, 36 Processes, 37 Summary, ... Review of the Conduct of Operations for Remediation of Recovered Chemical Warfare Materiel from Burial Sites Copyright © National Academy of Sciences All rights reserved Remediation of Buried ... Remediation of Buried Chemical Warfare Materiel REMEDIATION OF BURIED CHEMICAL WARFARE MATERIEL Committee on Review of the Conduct of Operations for Remediation of Recovered Chemical...

Ngày tải lên: 28/06/2014, 17:20

... antigenic sites of the RPV-L strain were inconsistent with those of RPV-RBOK since subtle antigenic differences between virus strains and the preparation of the Mabs depend on the delineation of the sites ... with 50 μl of serial dilutions of un-labeled competing Mabs for 30 at 37℃ Without wash step, an equal volume of the biotinylated Mab of maximum absorbance was added into all wells of the plates ... ELISA If it Characterization of Antigenic Sites on the Rinderpest Virus N Protein Uusing Monoclonal Antibodies 61 Table Mapping of antigenic sites in the N protein of RPV-LATC strain by competition...

Ngày tải lên: 07/08/2014, 17:22

Ngày tải lên: 07/08/2014, 17:22

... fertility of female rats and Stone et al (1991b) have suggested the implication of some fragile sites in tumoral chromosomal rearrangements in the mammary glands of dogs These features and some of the ... forms in goats and the aim of this work has been the adaptation of induction methodologies to begin studies of the detection and identification of folate-sensitive fragile sites in this karyotype ... study is needed of the sources of error which can lead to a significant percentage of false-positive results (a combination of Telomeric Structural Changes and NORs) A study of its genetic inheritance...

Ngày tải lên: 09/08/2014, 18:22

... exception of phytoplankton, aquatic plants have a scale of exposure that is appropriate to contaminated sites, in that plants not wander out of the contaminated area, and many contaminated sites ... that is appropriate to contaminated sites in that plants not wander out of the contaminated area, and many contaminated sites are large enough to encompass a population of herbaceous plants Although ... of the reference sites should resemble those of the contaminated site as closely as possible, except for the presence of the contaminants The relevance of properties of the sites depends on the...

Ngày tải lên: 11/08/2014, 04:20

... the data include the rate of degradation of the contaminants, the rate of change in the rate of release of contaminants from the source, and the rate of movement of the contaminated media Even ... SAMPLING AND CHEMICAL ANALYSIS OF MEDIA Most of the funds and effort expended on studies of contaminated sites are devoted to the collection and chemical analysis of the abiotic media: soil, water, ... rather than as a collection of chemicals that are assessed separately Finally, presentation of the results of an analysis of exposure is discussed 3.1 COMPONENTS OF ANALYSIS OF EXPOSURE This section...

Ngày tải lên: 11/08/2014, 04:20

... Equilibrium Partitioning Benchmarks Assessment and Remediation of Contaminated Sediments Program’s ER-Ls and TELs Assessment and Remediation of Contaminated Sediments Program’s ER-Ms, TELs, and ... fecundity or early development of fish Any chemical that has a primary mode of action that involves disruption of endocrine control of the formation of gametes or development of embryos would not be ... concentrations of a particular chemical The EPA has recommended the use of © 2000 by CRC Press LLC biological surveys for ecological risk assessment of contaminated sites when feasible and appropriate (Of ce...

Ngày tải lên: 11/08/2014, 04:20

... large proportion of species More precise interpretations would require knowledge of the actual duration of episodes of high concentrations and of the rate of induction of effects of copper on sensitive ... proportions of the area of the reach Therefore, an alternate expression of the result is that less than 10% of the reach is estimated to be toxic to as many as 10% of benthic species In the case of exposure ... magnitudes of effects Delineate meters of stream, square meters of land, etc for which media samples were toxic Calculate the proportion of time or the number of distinct toxic episodes per unit of time...

Ngày tải lên: 11/08/2014, 04:20