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Q10 (CAPF/2016) Environment & Ecology › Pollution & Conservation › Biological remediation methods Answer Verified

The process of using microbes to treat areas of land or sea that have been contaminated by pesticides, oil or solvents is known as

Result
Your answer: —  Â·  Correct: D
Explanation

Bioremediation is the process of using microorganisms, such as bacteria and fungi, to detoxify or degrade environmental contaminants like petroleum products, solvents, and pesticides into less harmful substances [4]. This technique can be applied to both land and sea environments. For instance, 'oilzapper' is a microbial mixture used to degrade oil-contaminated sites without leaving harmful residues [1]. The process often involves biostimulation, where nutrients are added to accelerate the metabolic activity of indigenous microbes, or bioaugmentation, where specific microbes are introduced [3]. In contrast, eutrophication refers to nutrient enrichment leading to algal blooms [2], while nitrification and ammonification are specific stages of the nitrogen cycle involving the conversion of ammonia to nitrates and organic nitrogen to ammonia, respectively [1]. Bioremediation is favored for being cost-effective and environmentally friendly compared to traditional 'dig and dump' methods [4].

Sources

  1. [4] https://www.sciencedirect.com/topics/earth-and-planetary-sciences/bioremediation
  2. [1] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 5: Environmental Pollution > bi Ex situ bioremediation techniques > p. 100
  3. [3] https://www.epa.gov/sites/default/files/2013-07/documents/nrt_fact_sheet_bioremediation_in_oil_spill_response.pdf
  4. [2] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 18: Ocean Acidification > ii. Eutrophication > p. 264
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SIMILAR QUESTIONS

CDS-II · 2009 · Q35 Relevance score: -2.21

Consider the following statement about bioremediation: I. It may be defined as any process that uses micro-organisms or their enzymes to return the environment altered by contaminants to its original condition. II. Bioremediation may be employed in order to attack specific contaminants, such as chlorinated pesticides that are degraded by bacteria. Which of the statements given above is/are correc?

IAS · 2017 · Q4 Relevance score: -3.76

In the context of solving pollution problems, what is/are the advantage/advantages of bioremediation technique ? 1. It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature. 2. Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms. 3. Genetic engineering can be used to create microorganisms specifically designed for bioremediation. Select the correct answer using the code given below :

NDA-II · 2017 · Q17 Relevance score: -4.23

Which one of the following statements about microbes is not correct ?

NDA-II · 2009 · Q40 Relevance score: -5.10

What is the process that tends to build up the land surface by deposition of solid material in its lower areas, known as ?

IAS · 2010 · Q56 Relevance score: -6.12

Which bacterial strain, developed from natural isolated by genetic manipulations, can be used for treating oil spills?