Exam (elaborations)
Basic Wastewater Operator Practice Exam Questions And Answers
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Basic Wastewater Operator Practice Exam Questions And Answers What is the predominant organism in a healthy activated sludge treatment plant? A. Stalked ciliates B. rotifers C. nematodes D. amoebas - ANS A. Stalked Ciliates A composite sample must be? A. sporadically collected ...
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