Explain the seeded dilution water

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A mixture consisting of 30ml of waste and 270ml of seeded dilution water has an initial DO of 8.55mg/l; after 5 day, it has a final DO of 2.40 mg/l. Another bottle containing just the seeded dilution water has an initial DO of 8.75 mg/l, and a final DO of 8.53mg/l. Find the 5 day BOD.

Reference no: EM13194145

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