How does the flow of energy conform to the laws of thermodynamics quizlet?
How does the flow of energy conform to the laws of thermodynamics? As the energy is used it is transformed into kinetic energy which dissipates to the environment. This conforms to the second law of thermodynamics because energy dissipates and degrades as it is reused. Heat is released during metabolism.
Where do extremophiles live how do they get the energy they need for survival quizlet?
How do they get the energy they need for survival? Deep in the Earth’s crust or deep on the ocean floor and in hot springs we find Extremophiles, organisms that gain their energy from chemosynthesis, or extracting energy from inorganic chemical compounds such as hydrogen sulfide (H2S).
Where does the energy available for nearly all living things on earth come from?
The Sun
What is the goal of bioremediation?
The goal in bioremediation is to stimulate microorganisms with nutrients and other chemicals that will enable them to destroy the contaminants.
What are 2 types of bioremediation?
Some of the most common types of bioremediation are microbial bioremediation, phytoremediation, and mycoremediation.
What is an example of bioremediation?
Bioremediation companies that specialize in soil and groundwater use microbes that feed on the hazardous substances for energy, which results in the breakdown of the targeted contaminant. Examples include junkyards, industrial spills, land development, fertilizer use, and more.
What types of bacteria are used in bioremediation?
Below are several specific bacteria species known to participate in bioremediation.
- Pseudomonas putida.
- Dechloromonas aromatica.
- Deinococcus radiodurans.
- Methylibium petroleiphilum.
- Alcanivorax borkumensis.
- Phanerochaete chrysosporium.
What are the different methods of bioremediation?
Types of Bioremediation
- 1) Biostimulation. As the name suggests, the bacteria is stimulated to initiate the process.
- 2) Bioaugmentation. At times, there are certain sites where microorganisms are required to extract the contaminants.
- 3) Intrinsic Bioremediation.
- Incineration.
- Phytoremediation.
What does bacteria do in bioremediation?
For bioremediation to be effective, microorganisms must enzymatically attack the pollutants and convert them to harmless products [39]. Bacteria and higher organisms have developed mechanisms associated with resistance to toxic metals and rendering them innocuous [20].
What is bioremediation and its advantages?
The major benefits of bioremediation are: Completely natural process with almost no harmful side effects. Carried out in situ for most applications with no dangerous transport. Quick turnaround time to make soil and water useful. Minimal equipment needed except for specialized pieces.
What are the limits of Bioremediation?
7.2 Limitations of bioremediation Bioremediation is limited to those compounds that are biodegradable. This method is susceptible to rapid and complete degradation. Products of biodegradation may be more persistent or toxic than the parent compound in the environment. Biological processes are highly specific.
How safe is bioremediation?
Is bioremediation safe? Bioremediation is very safe because it uses the same microbes that already naturally occur in soil or water. This process simply adds more of these organisms to those already present. No dangerous chemicals are used in the process and harmful contaminants are completely destroyed.
What are the factors that affect bioremediation?
The factors that directly impact on bioremediation are energy sources (electron donors), electron acceptors, nutrients, pH, temperature, and inhibitory substrates or metabolites. One of the primary distinctions between surface soils, vadose zone soils and groundwater sediments is the content of organic material.
What is Biosparging?
Biosparging is an in-situ remediation technology that uses indigenous microorganisms to biodegrade organic constituents in the saturated zone. In biosparging, air (or oxygen) and nutrients (if needed) are injected into the saturated zone to increase the biological activity of the indigenous microorganisms.
What is the difference between Biosparging and Bioventing?
Bioventing is the aeration of the unsaturated vadose zone to stimulate aerobic biodegradation. Biosparging is the injection of air into the groundwater to provide oxygen for groundwater remediation.
What is Biosparging used for?
Biosparging, like bioventing, is an in situ remediation technique that supplies oxygen and nutrients (if needed) to contaminated soils to promote aerobic biodegradation of contaminants (i.e. petroleum hydrocarbons) by indigenous microorganisms.