WebUsing the given information, determine the BOD in mg/L for the influent. Example: A 100 mL sample of wastewater influent is found to have an initial DO reading of 7.8 mg/L and a … WebCalculations: In general, BOD5 values less than 2.0 mg DO/L should be reported on DMRs as non-detects ( i.e., < LOD). Using the data recorded for un-seeded samples: BOD mg/l = (Initial DO - DO5) x Dilution Factor …

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Webprovide an estimate of the BOD at pH 6.5 to 7.5. Measurements of oxygen consumed in a 5-d test period (5-d BOD or BOD5, 5210B), oxygen consumed after 60 to 90 d of incubation (ultimate BOD or UBOD, 5210C), and continuous oxygen uptake (respirometric method, 5210D) are described here. Many other variations of oxygen demand measurements Web3. For the seed control, use 25 mls of B.O.D. seed solution in 300 ml BOD bottle. The seed correction factor can then be calculated as follows: • seed correction factor = 0.08 x … how to change word doc to pdf

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WebTo learn how to calculate Seed Correction and BOD, please refer to this document. In BOD Pro, two separate values for Seed Correction Factor are stored along with the Run; one is referred to as BODSeedCorrection, and the other CBODSeedCorrection. The way we calculated BODSeedCorrection in BOD Pro is as follows: WebDec 5, 2024 · Seed Correction Factor = Average of seed controls X mL of seed added to each sample bottle Ideally, the Seed Correction Factor should be between 0.6 and 1.0 … Web17 Is the seed properly prepared and measured? 5210B; 4.d.(1) 18 Are industrial, disinfected (UV or chlorine), or pH-adjusted samples seeded? 5210B; 4.e.(1&2) 19 Are at least two seed controls run that regularly meet depletion criteria? 5210B; 4.d.(2) 20 Are seed correction factors properly calculated and used to adjust results of seeded samples? how to change word document to landscape view