Question 4006 of 234 · California Wastewater Operator Exam

A very low F/M ratio in an activated sludge plant tends to produce

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Correct answer to question 4006

  • A: older sludge, high nitrification, and possible pin floc

Explanation

At low F/M the organisms are starved, so sludge is old and well oxidized. It can nitrify and sometimes produces small pin floc and dispersed growth.

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