How are the chemicals broken down by bioremediation?

Asked By: Domingas Tournay | Last Updated: 14th June, 2020
Category: business and finance green solutions
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Chemistry. Most bioremediation processes involve oxidation-reduction (Redox) reactions where a chemical species donates an electron (electron donor) to a different species that accepts the electron (electron acceptor). During this process, the electron donor is said to be oxidized while the electron acceptor is reduced

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Hereof, how is bioremediation used to clean up pollutants?

Currently, microbes are used to clean up pollution treatment in processes known as 'bioremediation'. Bioremediation uses micro-organisms to reduce pollution through the biological degradation of pollutants into non-toxic substances.

Additionally, how does bioremediation happen inside of a plant? Fate of Various Organic Contaminants The biodegradation of phenol, oil, gasoline, jet fuel, and other petroleum hydrocarbons occurs in soil. In vegetation-based bioremediation, MTBE is moved from the soil to the atmosphere along with the water that plants take up from soil and release to the air.

Secondly, what microorganisms are used in bioremediation?

Bioremediation makes use of living organisms to break down the pollutant into harmless, natural compounds. Bioremediators, the organisms used for bioremediation, are most often bacteria, archaea and fungi due to their rapid growth rate, variable metabolic needs and ability to be genetically manipulated.

How does bioremediation affect the environment?

Bioremediation works by providing these pollution-eating organisms with fertilizer, oxygen, and other conditions that encourage their rapid growth. These organisms would then be able to break down the organic pollutant at a correspondingly faster rate. In fact, bioremediation is often used to help clean up oil spills.

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What is an example of bioremediation?

Some examples of bioremediation related technologies are phytoremediation, mycoremediation, bioventing, bioleaching, landfarming, bioreactor, composting, bioaugmentation, rhizofiltration, and biostimulation.

What are the two types of bioremediation?

There are two different types of bioremediation, in situ and ex situ.

What are the benefits of bioremediation?

Bioremediation has been successfully used to to clean up pollutants including crude oil, gasoline, pesticides, sewage, and chlorinated solvents used in cleaning supplies. The benefits of bioremediation include lower costs and less disruption of the contaminated environment when compared to other clean up methods.

What is an example of Bioaugmentation?

An example of how bioaugmentation has improved an environment, is in the coke plant wastewater in China. In the enhanced microbial community indigenous microorganisms broke down the contaminants in the coke plant wastewater, such as pyridines, and phenolic compounds.

What are the methods of bioremediation?

What are the Different Types of Bioremediation?
  • Microbial bioremediation uses microorganisms to break down contaminants by using them as a food source.
  • Phytoremediation uses plants to bind, extract, and clean up pollutants such as pesticides, petroleum hydrocarbons, metals, and chlorinated solvents.

Where is bioremediation being used?

Bioremediation can also be used in other water systems like rivers, streams, and estuaries. Lawn fertilizers, pesticides, and other contaminants find their way into these waters as they get picked up by rain water that runs down the land and into the water.

How do microbes clean our environment?

The microorganisms decompose dead organic wastes of plants and animals converting them into simple substances. These substances are again used by other plants and animals. Thus, microorganisms can be used to degrade the harmful and smelly substances and thereby cleans up the environment.

What is biodegradation process?

Biodegradation is the naturally-occurring breakdown of materials by microorganisms such as bacteria and fungi or other biological activity. Essentially, composting is an accelerated biodegradation process due to optimized circumstances.

When has bioremediation been used?

Bioremediation was used extensively to combat the devastating effects of the Exxon Valdez oil spill in 1989 and BP's Deepwater Horizon oil spill in 2010. In both oil spills, microorganisms were used to consume petroleum hydrocarbons and played a significant role in reducing the environmental impact.

Where do we find microorganisms?

Microbes live in the soil, on rocks, inside roots, buried under miles of Earth, in compost piles and toxic waste, and all over the Earth's surface. Microbes are found in boiling hot springs and on frozen snowfields.

Who discovered bioremediation?

Bioremediation was first discovered around 600 BC by the Romans. Although their versions of the process aren't as developed as today's, they were still able to use it. They used bioremediation to clean their waste water. Much later, in the 1960's, bio-remediation was officially invented by George Robinson.

What is microbial remediation?

The use of microbes such as bacteria and fungi for soil rejuvenation is a form of environmental remediation. The objective of microbial remediation is to remove soil contaminants and pollutants. The microbial flora feeds on the contaminants, degrading them for energy and reproduction.

What is bioremediation in biology?

bioremediation. [ bī′ō-rĭ-mē′dē-ā′sh?n ] The use of biological agents, such as bacteria, fungi, or green plants, to remove or neutralize contaminants, as in polluted soil or water. Bacteria and fungi generally work by breaking down contaminants such as petroleum into less harmful substances.

How does bioremediation work?

How Bioremediation Works. Bioremediation relies on stimulating the growth of certain microbes that utilize contaminants like oil, solvents, and pesticides for sources of food and energy. These microbes convert contaminants into small amounts of water, as well as harmless gases like carbon dioxide.

How are fungi used in bioremediation?

Fungi are among the potential candidates of bioremediation as they are natural decomposers of waste matter and secrete several extracellular enzymes capable of decomposing lignin and cellulose, the two essential components of plant fiber.

What is the role of microorganisms in the environment?

Microorganisms play a critical role in the various biogeochemical cycles, as well as being a particularly important component of plant and soil ecosystems. They break down dead plant and animal tissues and make their nutrients, including carbon and nitrogen, available to support plant growth.

What is the function of microbial enzymes?

Microbial enzyme production concentrates on simple hydrolytic enzymes (proteases, amylases, pectinases) that degrade natural polymers such as proteins, starches, or pectin. The microorganisms secrete the enzymes into their nutrient medium to make better use of it.