2 edition of Microbial biodegradation in soil and groundwater found in the catalog.
Microbial biodegradation in soil and groundwater
Hardial Singh Dhillon
Written in English
Thesis(Ph.D.)- Loughborough University of Technology 1988.
|Statement||by Hardial Singh Dhillon.|
1. Introduction. One of the most commonly detected contaminants in groundwater is 1,2-Dibromoethane (EDB), because of its extensive addition to leaded gasoline and soil fumigants several decades ago .EDB is highly toxic and probably carcinogenic in humans, and it can lead to damage to the lungs, liver, kidneys, stomach, reproductive system, respiratory system, and nervous system in mammals . Abstract. Responses of hydrochemical parameters, bacterial community structures, and microbial activities during the natural biodegradation of hydrocarbons leaking from a crude oil pipeline at a site in northeastern China were studied using the hydrochemical method, the polymerase chain reaction amplification of 16S rDNA genes, and denaturing gradient gel electrophoresis (DGGE).The.
This book covers broader aspect of bioremediation and biodegradation of environmental pollutants. the process of phytoremediation and microbial biodegradation is a comparatively cheaper and relevant approach on a large scale than physical and chemical remediation. (soil, oily sludge, and groundwater) caused by petroleum hydrocarbons. This chapter reviews the application of additives used in bioremediation of chlorinated solvents and fuels for groundwater and soil remediation. Soluble carbon substrates are applicable to most site conditions except aquifers with very high or very low groundwater flow. Slow-release and solid substrates are intended to be long-lasting in supplying carbon for microbial growth thereby minimizing.
Biodegradation of hydrocarbons in the soil. Crude oils are composed of complex mixtures of paraffinic, alicyclic and aromatic hydrocarbons. A terrestrial oil spill left to its natural fate is gradually degraded by some biological and non-biological mechanisms (Leahy and Colwell ; Atlas and Bartha ; van Hamme et al. ).Photooxidation may contribute substantially to the self. This book describes the basic principles of biodegradation and shows how these principles are related to bioremediation. Authored by leading, international environmental microbiologists, it discusses topics such as aerobic biodegradation, microbial degradation of pollutants, and microbial .
This review summarises the current state of knowledge on the biodegradation and fate of the gasoline ether oxygenate ethyl tert-butyl ether (ETBE) in soil and rganisms have been identified in soil and groundwater with the ability to degrade ETBE aerobically as a carbon and energy source, or via cometabolism using alkanes as growth by: 1.
in the activity and composition of the soil microbial population. Facultative anaerobic organisms (which Soil temperature is a controlling factor for the rate of biodegradation.
Higher soil temperatures result in Ground Water Monitoring Review, v. 4, no. 1, p. Peters, C.A., and Healy, R.W.,The representativeness of pore.
Microbial Biodegradation and Bioremediation brings together experts in relevant fields to describe the successful application of microbes and their derivatives for bioremediation of potentially toxic and relatively novel compounds. This single-source reference encompasses all categories of pollutants and their applications in Microbial biodegradation in soil and groundwater book convenient.
Biodegradation is defined as the biologically catalyzed reduction in complexity of chemical compounds .Indeed, biodegradation is the process by which organic substances are broken down into smaller compounds by living microbial organisms .When biodegradation is complete, the process is called "mineralization".Cited by: G.
Speight, in Environmental Organic Chemistry for Engineers, In Situ and Ex Situ Biodegradation. Biodegradation applications fall into two broad categories: (1) in situ or (2) ex situ. In situ biodegradation processes treats the contaminated soil or groundwater in the location in which it was found.
Ex situ biodegradation processes require excavation of contaminated soil or. Macropores, however, may present a favorable environment for biodegradation because of greater oxygen, nutrient, and substrate supply, and higher microbial populations in earthworm burrows, compared to the soil matrix.
The biodegradation of 2,4‐dichlorophenoxyacetic acid (2,4‐D) was measured in macropores and soil matrix of packed soil.
Soil additives to the system included cubic meters of calcium chloride to increase soil permeability, as well as 2, kil ograms of (percent nitr ogen-phosphorus-potassium) liquid fertilizer for increasing the microbial population and consequent biodegradation rate.
Microbial inocula (the microbial materials used in an inoculation) are prepared in the laboratory from soil or groundwater either from the site where they are to be used or from another site where the biodegradation of the chemicals of interest is known to be occurring.
Microbes from the soil or groundwater are isolated and are added to media. DIELS L., LOOKMAN R. () MICROBIAL SYSTEMS FOR IN-SITU SOIL AND GROUNDWATER REMEDIATION.
In: Marmiroli N., Samotokin B., Marmiroli M. (eds) Advanced Science and Technology for Biological Decontamination of Sites Affected by Chemical and Radiological Nuclear Agents.
NATO Science Series: IV: Earth and Environmental Sciences, vol Pesticide degradation is the process by which a pesticide is transformed into a benign substance that is environmentally compatible with the site to which it was applied.
Globally, an estimated 1 to million tons of active pesticide ingredients are used each year, mainly in percent are herbicides, followed by insecticides and fungicides.
Surajit Das, Hirak R. Dash, in Microbial Biodegradation and Bioremediation, In situ Bioremediation. In situ bioremediation is the application of a biological treatment to clean up hazardous compounds present in the environment.
The optimization and control of microbial transformations of organic contaminants requires the integration of many scientific and engineering disciplines. Microbial Biodegradation and Bioremediation brings together experts in relevant fields to describe the successful application of microbes and their derivatives for bioremediation of potentially toxic and relatively novel compounds.
This single-source reference encompasses all categories of pollutants and their applications in a convenient, comprehensive package. This book describes the vast variety of xenobiotics, such as pesticides, antibiotics, antibiotic resistance genes, agrochemicals and other pollutants, their interactions with the soil environment, and.
BIODEGRADATION TEST. The biodegradation test was carried out using the ISO () test method. The test material is mixed with the selected soil. The mixture is allowed to stand in the test flask under controlled conditions over a period of time during which the carbon dioxide evolved is determined.
Technologies for soil remediation require real knowledge and understanding of the processes involved and a correct and Reactive Transport in Soil and Groundwater Processes and Models.
Editors (view affiliations) Filtration Groundwater Infiltration Mathematica adsorption biodegradation environment modeling pesticide pollution. Del Carmen Cortés-Espinosa Diana V.
"Isolation and Selection of a Highly Tolerant Microbial Consortium with Potential for PAH Biodegradation from Heavy Crude Oil-Contaminated Soils." Water, Air, & Soil Pollution /s Online publication date: January Meuser Helmut "Groundwater, Soil Vapour and Surface Water Treatment.
Microbial biodegradation is the use of bioremediation and biotransformation methods to harness the naturally occurring ability of microbial xenobiotic metabolism to degrade, transform or accumulate environmental pollutants, including hydrocarbons (e.g.
oil), polychlorinated biphenyls (PCBs), polyaromatic hydrocarbons (PAHs), heterocyclic compounds (such as pyridine or quinoline. ADVERTISEMENTS: Read this article to learn about the biodegradation and bioremediation in details with diagrams.
Biodegradation or biological degradation is the phenomenon of biological transformation of organic compounds by living organisms, particularly the microorganisms.
Biodegradation basically involves the conversion of complex organic molecules to simpler (and mostly non-toxic) ones. Microbial Biodegradation of Xenobiotic Compounds examines and collects the recent information on the bioremediation technologies around the world.
This book focuses on methods to decrease pollutants created by anthropogenic activities, industrial activities, and agricultural activities. Progress 10/01/08 to 09/30/09 Outputs OUTPUTS: My research group continues to focus on microorganisms capable of metabolizing organic environmental pollutants in soil and groundwater.
We are examining relationships between geochemical setting and in situ physiological reactions carried out by microbial communities involved in metabolism of naphthalene (a representative of polycyclic. In situ bioremediation of groundwater has become one of the most widely used technologies for contaminated site treatment because of its relatively low cost, adaptability to site-specific conditions, and efficacy when properly implemented (Stroo ).
Introduction to In Situ Bioremediation of Groundwater was prepared by the Office of Superfund.sulfur. Subsurface soils, and ground water sediments have lower levels of organic matter and thus lower mi-crobial numbers and population diversity than surface soils (Adriaens and Hickey, ).
Bacteria become more dominant in the microbial community with in-creasing depth in the soil proﬁle as the numbers of other.Transport and biodegradation modeling of gasoline spills in soil–aquifer system Article (PDF Available) in Environmental Earth Sciences 74(4) March with Reads How we measure 'reads'.