Soil contamination and remediation
Order ID:89JHGSJE83839 | Style:APA/MLA/Harvard/Chicago | Pages:5-10 |
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Soil contamination and remediation
Soil contamination refers to the presence of toxic or harmful substances in soil that can pose a threat to human health and the environment. Contaminants can enter the soil through a variety of sources, including industrial activities, improper waste disposal, and agricultural practices. Soil contamination can have a range of negative impacts, such as reduced crop yields, damage to ecosystems, and increased risk of human health problems.
Remediation is the process of restoring contaminated soil to a safe and healthy condition. There are several methods for soil remediation, including physical, chemical, and biological approaches. The appropriate remediation method will depend on the type and extent of contamination, as well as the site-specific factors such as soil type and hydrology.
Physical remediation techniques involve the physical removal or containment of contaminated soil. Common methods include excavation, soil vapor extraction, and soil washing. Excavation involves the removal of contaminated soil and its replacement with clean soil. Soil vapor extraction involves the use of a vacuum to remove volatile contaminants from the soil. Soil washing involves the use of water and chemicals to remove contaminants from the soil.
Chemical remediation techniques involve the use of chemicals to transform or degrade contaminants in the soil. Examples include chemical oxidation, which involves the use of chemicals such as hydrogen peroxide to break down contaminants, and chemical reduction, which involves the use of chemicals such as zero-valent iron to reduce contaminants.
Biological remediation techniques involve the use of microorganisms to degrade contaminants in the soil. This can be done through the process of bioremediation, which involves adding microorganisms to the soil to break down contaminants. Bioremediation can be accomplished through natural or engineered systems. Natural systems involve the use of naturally occurring microorganisms, while engineered systems involve the use of specially designed microorganisms that are optimized for the specific contaminants present in the soil.
In addition to these methods, there are also some emerging technologies for soil remediation, such as phytoremediation, which involves the use of plants to remove contaminants from the soil, and electrokinetic remediation, which involves the use of an electric field to move contaminants through the soil and into a collection area.
Overall, soil contamination is a serious problem that requires careful consideration and attention to ensure that the environment and human health are protected. Remediation techniques can help to restore contaminated soil to a healthy and safe condition, but the appropriate method will depend on the type and extent of contamination, as well as site-specific factors such as soil type and hydrology.
Soil contamination and remediation
RUBRIC |
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Excellent Quality 95-100%
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Introduction
45-41 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. |
Literature Support 91-84 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned. |
Methodology 58-53 points Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met. |
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Average Score 50-85% |
40-38 points More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided. |
83-76 points Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration. |
52-49 points Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met. |
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Poor Quality 0-45% |
37-1 points The background and/or significance are missing. No search history information is provided. |
75-1 points Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration. |
48-1 points There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met |
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