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Wastewater Treatment Operator Certification Test #1 | Actual 80 Questions & Verified Answers 2024/2025
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Wastewater Treatment Operator Certification Test #1 | Actual 80 Questions & Verified Solutions 2024/2025 What is the methane content in a properly operation anaerobic digester? A) 30 to 35% by volume B) 1 to 2% by volume C) 65 to 70% by volume D) 15 to 20% by volume - Answer - C) 65 to 70% b...
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