Suppose a well has become contaminated by harmful bacteria such as E.coli.How can this be removed from an aquifer by natural subsurface processes?

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Quizplus · Accepted Answer

Natural subsurface processes such as mechanical filtration, chemical oxidation, or assimilation by other organisms can help remove harmful bacteria from an aquifer. As water percolates through the subsurface, it can physically filter out particles and contaminants. Chemical reactions can also occur, such as oxidation, which can break down harmful substances. Additionally, microorganisms in the subsurface can consume and break down harmful bacteria. These processes can help purify the water over time. Asymptotic expansion and dissolution, diagenesis, and fossilization are not relevant to this scenario, and overpumping for a few days is not a reliable or effective method for removing bacteria from water.

Suppose a Well Has Become Contaminated by Harmful Bacteria Such