During BOD test conducted on a 5% dilution of waste , the following observations were taken :

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teamques10 ★ 68k

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i) DO of aerated water used for dilution = 3.6mg/lit
ii) DO of original sample = 0.8mg/lit
iii) DO of diluted sample after 5 day incubation = 0.7mg/lit
Compute a) 5day BOD b)Ultimate BOD

environmental engineering

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