how is good bacteria helpful to the environment? - oil spill pads

by:Demi     2019-09-15
how is good bacteria helpful to the environment?  -  oil spill pads
We think bacteria are harmful diseases.
Invisible creatures.
But in fact, only a few species are dangerous.
Most bacteria are good. life on Earth is impossible without them.
Bacteria help to degrade dead animals and plants and bring valuable nutrients back to Earth.
In a process called biological remediation, some species also help to remove harmful pollutants from the environment.
Through bio-remediation technology, toxic substances such as heavy metals and oil are no longer harmful to the environment.
Bacteria are also cheap and precise sensors for toxic chemicals.
The largest number of organisms in the soil is bacteria.
They are a necessary part of a nutrient or biochemistry cycle in which carbon, nitrogen, sulfur and phosphorus circulate between organisms and the environment.
Without these cycles, the backbone elements of protein, sugar and fat will not be exchanged --
There is no life.
According to the United States, bacteria are sensors. S.
US Environmental Protection AgencyS.
Industry generates 0. 292 billion tons of hazardous waste per year, and at least 40 million tons are released into the environment.
Traditional chemical analysis used to identify and locate toxic waste is costly and often inaccurate.
Therefore, scientists have designed genetically modified bacterial sensors that can locate pollutants.
Sensors don't need expensive chemicals or equipment, they work in a matter of minutes.
Some bacteria glow when they encounter a toxic chemical.
Others will shine as long as they are healthy, but if they are killed by toxins, they will stop glowing.
Competition between bacteria as polluting substances and metals from industry and toxic synthetic organic chemicals (including pesticides, petroleum products, explosives and flame retardant) poses a serious risk to the environment and health.
They enter the soil, air and water and have strong resistance to the natural decomposition process.
Biological remediation uses certain bacteria to digest toxic substances and convert them into harmful substances.
In a way, biological repair occurs naturally, but usually enhances biological repair by adding bacteria "food" (such as phosphorus and nitrogen), which makes bacteria grow better, chemicals
Bio-repair is usually cheaper with less labor
More intensive than traditional technology.
Specific bacterial industrial pollution and oil leakage are often the extent to which enhanced bioremediation is required, in which case researchers choose bacteria that are specifically grown on a certain pollutant or genetically modified bacteria that can metabolize a specific pollutant.
The addition of this bacteria is known as biostrengthening and is used to clean up oil spills in the water.
In addition, the researchers have changed the radiation
Resistant bacteria make it more useful in cleaning up sites contaminated with radioactive substances.
It is important that good bacteria are a necessary cleaner for toxic waste, and without them many accidents in the environment will turn into disaster.
On 1989, the Exxon Valdez struck a reef off the coast of Prince William Bay in Alaska, causing one of the biggest oil spills in history.
Researchers are still working on how to clean these pristine waters thoroughly.
In the first five years after the accident, oil disappeared at a rate of about 70% due to successful bioremediation.
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