HORTICULTURE SCIENCE
ENVIRONMENTAL BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The area is treated with antibiotics.
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The area is treated with concentrated oxygen.
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The bacteria run out of food and die off naturally.
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The bacteria are covered with fresh soil and they die due to a lack of oxygen.
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Detailed explanation-1: -Bioaugmentation-Used mainly in cleaning up soil contamination, this process adds bacteria to the surface of the affected area, where they are then allowed to grow. Intrinsic Bioremediation-Vonverts toxic materials into inert ones using the native microbiome to the affected area.
Detailed explanation-2: -It is a natural process; it takes a little time, as an adequate waste treatment process for contaminated material such as soil. Microbes able to degrade the contaminant, the biodegradative populations become reduced. The treatment products are commonly harmless including cell biomass, water and carbon dioxide.
Detailed explanation-3: -Bioremediation can be defined as any process that uses bacteria, fungi, green plants or their enzymes to return the environment altered by contaminants to its original condition. Bacteria that can degrade some soil contaminants such as chlorinated hydrocarbons are used in bioremediation.
Detailed explanation-4: -Wastewater entering a treatment plant is aerated to provide oxygen to bacteria that degrade organic material and pollutants. Microbes consume the organic contaminants and bind the less soluble fractions, which can then be filtered off. Toxic ammonia is reduced to nitrogen gas and released into the atmosphere.
Detailed explanation-5: -During bioremediation, microbes utilize chemical contaminants in the soil as an energy source and, through oxidation-reduction reactions, metabolize the target contaminant into useable energy for microbes.