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suo90821 suo90821
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Posts: 2118
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7 years ago
What stage of sewage treatment produces methane?
A) primary treatment
B) secondary treatment
C) sludge digestion
D) tertiary treatment
E) None of the stages of sewage treatment produce methane.
Textbook 
Microbiology: An Introduction

Microbiology: An Introduction


Edition: 11th
Authors:
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Microbiology: An Introduction
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Answer verified by a subject expert
LuichenLuichen
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7 years ago
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suo90821 Author
wrote...
7 years ago
I was doubtful anyone would answer when I posted my question here, glad I did!

Cheers Slight Smile
Microbiology: An Introduction
wrote...
7 years ago
you are welcome
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