BIOCHEMICAL OXYGEN DEMAND (B.O.D) (5 DAYS BOD TEST)
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BIOCHEMICAL OXYGEN DEMAND (B.O.D) (5 DAYS BOD TEST)
The biochemical oxygen demand (BOD) determination is an empirical test which standardized laboratory procedures are used to determine the relative oxygen requirements of wastewaters, effluents and polluted waters. The method consists of filling with diluted sample, to overflowing, an airtight bottle of specified size and incubating it at the ...
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A 5-day BOD test was conducted on a wastewater sample. 50 mL of wastewater sample was added and diluted with dilution water into a 300 mL BOD incubation bottle. The initial dissolved oxygen (DO) of the diluted sample was 6.8 mg/L, and the final DO after 5 days was 1.9 mg/L. The corresponding initial and final DO of the dilution water (blank) was 7.1 mg/L and 6.9 mg/L, respectively. Calculate the BOD5 and COD values of the wastewater sample, given the rate constant of BOD was 0.3/day. (Hint: L =
A 5-day BOD test was conducted on a wastewater sample. 50 mL of wastewater sample was added and diluted with dilution water into a 300 mL BOD incubation bottle. The initial dissolved oxygen (DO) of the diluted sample was 6.8 mg/L, and the final DO after 5 days was 1.9 mg/L. The corresponding initial and final DO of the dilution water (blank) was 7.1 mg/L and 6.9 mg/L, respectively. Calculate the BOD5 and COD values of the wastewater sample, given the rate constant of BOD was 0.3/day. (Hint: L =
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A 5-day BOD test was conducted on a wastewater sample. 50 mL of wastewater sample was added and diluted with dilution water into a 300 mL BOD incubation bottle. The initial dissolved oxygen (DO) of the diluted sample was 6.8 mg/L, and the final DO after 5 days was 1.9 mg/L. The corresponding initial and final DO of the dilution water (blank) was 7.1 mg/L and 6.9 mg/L, respectively. Calculate the BOD5 and COD values of the wastewater sample, given the rate constant of BOD was 0.3/day. (Hint: L =
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