1. Bioremediation is using living microorganisms to degrade environmental contaminants into less toxic forms.
2. Bioremediation uses naturally occurring bacteria, fungi, and plants to degrade substances hazardous to human health.
Which of the statements given above is/are correct?
Correct Answer:
(C) Both 1 and 2
Bioremediation is using living microorganisms to degrade environmental contaminants into less toxic forms.
Bioremediation uses naturally occurring bacteria, fungi, and plants to degrade or detoxify substances hazardous to human health and/or the environment.
The microorganisms may be indigenous to a contaminated area or isolated from elsewhere and brought to the contaminated site.
Bioremediation has gained significant attention in recent years due to its potential to address various environmental challenges, from oil spills to contaminated soil and groundwater.
Ques: 2
Consider the following statements regarding Bio-Venting:
1. It involves supplying oxygen and nutrients through aqueous solutions through contaminated soils to accelerate naturally occurring microorganisms and degrade organic impurities.
2. It involves supplying oxygen and nutrients through aqueous solutions through contaminated soils to accelerate naturally occurring microorganisms and degrade organic impurities.
Which of the statements given above is/are correct?
Correct Answer:
(A) 1 only
Bio-Venting
Bio-Venting involves supplying oxygen and nutrients through aqueous solutions through contaminated soils to accelerate naturally occurring microorganisms and degrade organic impurities.
Bio-Sparging
Bio-Sparging involves the pressurised injection of air below the water table to increase the content of groundwater oxygen concentration and the rate of biological degradation of wastes by naturally occurring microorganisms.
Bio-Augmentation
Bio-Augmentation involves continuously adding microorganisms (indigenous or exogenous) to the contaminated sites.
Ques: 3
Consider the following statements regarding 'Bioremediation'. It involves the use of bacteria and fungi to:
Clean up aquifers.
Clean up toxic dumps
Clean up oil spills
Cure bacterial and fungal disease
Choose the correct answer using the codes given below:
Correct Answer:
(C) 1, 2 and 3 only
Bioremediation is a branch of biotechnology that employs the use of living organisms, like microbes and bacteria, in the removal of contaminants, pollutants, and toxins from soil, water, and other environments. Bioremediation may be used to clean up contaminated groundwater or environmental problems, such as oil spills.
Ques: 4
In the context of solving pollution problems, what is/are the advantage/ advantages of bioremediation technique?
It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature.
Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms.
Genetic engineering can be used to create microorganisms specifically designed for bioremediation.
Select the correct answer using the code given below:
Correct Answer:
(C) 1 and 3 only
Bioremediation technique
Bioremediation is a treatment that uses naturally occurring organisms to break down hazardous substances into less toxic or non-toxic substances. It uses microorganisms to degrade organic contaminants in soil, groundwater, sludge, and solids.
The bioremediation technique is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature.
Not all contaminants are easily treated by bioremediation using microorganisms. For example, heavy metals such as cadmium and lead are not readily absorbed or captured by microorganisms.
Bioremediation is limited to biodegradable compounds. So statement 2 is incorrect.
Bioremediation is the use of microorganisms mainly bacteria and fungi to degrade the environmental contaminants into less toxic forms.
Genetic engineering can be used to create microorganisms specifically designed for bioremediation.