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In the case of bioaugmentation, microbes are introduced into the environment to clean up and absorb a certain pollutant. My question is how is that microbe then removed from the environment once it performs its function?

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    $\begingroup$ A bit broad. Sometimes it will die off when food supply is too small to support the population; sometimes it will need to be removed with poisons or predators; sometimes it doesn't need to be removed as it is relatively benign to the environment. What case of bioaugmentation are you referring to specifically? $\endgroup$
    – rotaredom
    Oct 25, 2017 at 13:34
  • $\begingroup$ Heavy metal bioaugmentation. $\endgroup$ Oct 26, 2017 at 14:06

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Usually you have to introduce conditions which hinder multiplication of the microbe such as altering the pH and emperature. This is hard to achieve in a large environment, alternatively, you can introduce a recombinant of that microbe which posses a survivability threat to the initial microbe.

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    $\begingroup$ Could you add some sources describing these steps actually being performed? $\endgroup$
    – Koen vd H
    Oct 26, 2017 at 22:00

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