Exam Study Guide - October 2019

WASTEWATER- By Rick Lallish

What is the expected or recommended time it should take for the contents in an oxidation ditch to travel the complete circuit of the ditch or go from rotor to rotor?

A. 30 seconds to 1.5 minutes

B. 2.0 minutes to 2.5 minutes

C. 3.0 minutes to...

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