Bioremediation of organic contaminants rates are constrained by low bioavailability sorption low aqueous solubility aging biosurfactants increase bioavailability solubilization alteration of cell surface properties the reason for variable results is that surfactants are usually added at high concentration cmc, wherein they can. By default, documents saved in powerpoint 2010 are saved with the. Biodegradation or biological degradation is the phenomenon of. This tutorial teaches how to record video lectures for an online course using your webcam and a keynote or powerpoint presentation. Environmental pollutants continue to be a major global concern. Bioremediation provides a technology based on the use of living organisms, usually bacteria and fungi, to remove pollutants from soil and water, preferably in situ. Bioremediation products list of high impact articles ppts.
Bioremediation can either be carried out ex situ or in situ, depending on several factors, which include but not limited to cost, site characteristics, type and concentration of pollutants. The beginners guide to microsoft powerpoint youtube. Introduction to bioremediation environmental remediation. Bioremediation is the use of living organisms for the recovery or cleaning up of a contaminated medium such as soil, sediment, air, or water. Bioremediation comes from two words bios means life and remediate means to decipher an issue. Bioremediation techniques are more economical than traditional methods and pollutants can be treated on site, thus reducing exposure risks for personnel. Bioremediation bioremediation bioremediation definition. Even when it comes to bioremediation, we just cant help but come up with. Introduction to enhanced oil recovery eor processes and. View and download powerpoint presentations on bioremediation ppt. Bioremediation biodegradation refers to the natural process whereby bacteria or other microorganisms alter and break down organic molecules into other substances, such as fatty acids and carbon dioxide.
The article focuses on the key concepts associated with bioremediation. Bioremediation destroyschanges the harmful chemicals into water and harmless gases. Biodegradation basically involves the conversion of complex organic molecules to simpler and mostly nontoxic ones. Vidali encyclopedia of life support systems eolss recent years has led to international efforts to remedy many of these sites, either as a response to the risk of adverse health or environmental effects caused by contamination or to enable the site to be redeveloped for use. Here in this introductory chapter, bioremediation and bioremediation techniques are introduced. Sun oil pipeline spill in ambler, pennsylvania 1970s continuing bioremediation projects by richard raymond of sun oil mid1980s emphasis on bioengineering organisms for bioremediation. Bioremediation techniquesclassification based on site of. Sludge 2% breakdown of process by treatment technology includes laboratory, pilot, and fullscale exsitu without reactor 17%. Biodegradation or biological degradation is the phenomenon of biological transformation of organic compounds by living organisms, particularly the microorganisms. Use of living organisms to transform, destroy or immobilize contaminants goal. Bioremediation can be used as a cleanup method for contaminated soil and water. Microorganisms like bacteria, fungi, algae etc take part in bioremediation. Bioremediation superfund remedial action technology selected fy94 breakdown of sites by type of contaminant percentage of sites treating each medium. Isbn 9789535106296, pdf isbn 9789535162117, published 20120523.
Bioremediation applications fall into two broad categories. In situ bioremediation isb of groundwater involves the encouragement of indigenous bacterial populations to metabolize target contaminants through the addition of various amendments biostimulation to the subsurface environment. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. Pollutant a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource.
Bioremediation, contaminants, monitoring and saturation received 16 march 2011. Pdf bioremediation techniquesclassification based on site. In situ bioremediation treats the contaminated soil or groundwater in the location in which it was found. Hindu college, nagercoil, tamil nadu, india key words. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Assessment of bioremediation as a cleanup strategy at srs. The degradation of noxious waste from the environment using microorganisms is called as bioremediation. Despite the large financial investment, ground water cleanup efforts are falling. Government printing office, washington, dc 204029325 order form can be found in the back of this report. The removal of organic wastes by microbes for environmental cleanup is the essence of bioremediation.
The state of the art of bioremediation technology as well as examples of more or less successful case studies are published in many books during the last 20 years 14, 16, 19, 25, 26, 29, 31, 35, 37, 3941, 4345, 47. This singlesource reference encompasses all categories of pollutants and their applications in a convenient. Congress, office of technology assessment,bioremediation for marine oil spills background paper, otabpo70 washington, dc. Bioremediation is a waste management technique that involves the use of organisms to remove or neutralize pollutants from a contaminated site. Bioremediation is a process used to treat contaminated media, including water, soil and subsurface material, by altering environmental conditions to stimulate growth of microorganisms and degrade the target pollutants. Many books are specialized in specific applications of bioremediation such as bioremediation of mtbe 48, perchlorate 49. Henry haight, leon bamba microorganism a microscopic, single celled, organism. Ppt bioremediation powerpoint presentation free to. Bioremediation techniquesclassification based on site of application. History of bioremediation 1972 first commercial application. Humans like options if you need proof, just walk down the cereal aisle of a grocery store. Bioremediation can occur on its own natural attenuation or intrinsic bioremediation or can be spurred on via the addition of fertilizers to increase the. Sludge 2% surface water 1% breakdown of process by treatment technology includes laboratory, pilot, and fullscale. Bioremediation can either be carried out ex situ or in situ, depending.
Bioremediation bioremediation is the use of microorganisms to destroy or immobilize waste materials microorganisms include. Bioremediation products for oil spill cleaning, bio tech, inc. Read this article to learn about the biodegradation and bioremediation in details with diagrams. Introduction to in situ bioremediation of groundwater. Scribd is the worlds largest social reading and publishing site. Global use of bioremediation technologies for decontamination. This technology did not live up to its initial promise. Microsoft powerpoint is a presentation tool that supports text, shapes, graphics, pictures and multimedia along with integration with other microsoft office products like excel. Jul 06, 2015 onsite bioremediation cheapest and most efficient bioventing, bioaugmentation, biosparging site disturbance is minimized types.
When compared to standard practices, effluent volumes generated by bioremediation are substantially smaller reducing the problem of sludge disposal. Bioremediation for marine oil spills princeton university. Pdf bioremediation techniquesclassification based on. A free powerpoint ppt presentation displayed as a flash slide show on id. Bioremediation as a branch of environmental biotechnology takes advantage of various living organisms including bacteria, fungi, algae, and plants in order to remediate the contaminated ecosystems. Sep 16, 2016 remediation of polluted sites using microbial process bioremediation has proven effective and reliable due to its ecofriendly features. Bacteria aerobic and anaerobic fungi actinomycetes filamentous bacteria. According to the epa, bioremediation is a treatment that uses naturally occurring organisms to break down hazardous substances into less toxic or non toxic substances. In many cases, bioremediation is less expensive and more sustainable than other remediation alternatives. Microbes are very small organisms, such as bacteria, that live naturally in the environment. The strategies for bioremediation in both soil and water can be as follows. Bioremediation is cheaper than the chemical and physical options, and can deal with lower concentrations of contaminants more effectively, although the process may take longer.
Microbial biodegradation and bioremediation 1st edition. Bioremediation techniques are typically more economical than traditional methods such as incineration, and some pollutants can be treated on site, thus reducing exposure risks for cleanup personnel, or potentially wider exposure as a result of. The contaminated water and soil are treated with microorganisms and then after the materials are degraded the soil and water are placed in a bed with oxygen and rich. Learn everything you need to know to get started using microsoft powerpoint. Bioremediation the use of bacteria and fungi and plants to break down or degrade. Introduction to enhanced oil recovery eor processes and bioremediation of oilcontaminated sites. Epas citizens guide to bioremediation epa 2012a to be a more fundamental and concise reference.