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Grades I&II Review Questions 3

February 23, 2017
Posted by: Eric & Patti Wahlberg
Category: Exam Review

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What is the difference between fixed solids and volatile solids?
How does the wastewater treatment profession define total suspended solids (TSS)?
True or false: Hydrogen sulfide is a major component of digester gas.
What characteristics of hydrogen sulfide—name three—make it particularly dangerous (and potentially lethal)?
When is methane mixed with air explosive?

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