WebNumerical based on BOD and COD : 2. A 25 ml of sewage water sample was refluxed with 10 ml 0f 0.25 N K2Cr2 O7 solution. written 4.5 years ago by teamques10 ★ 49k • … WebThe diluted sample used to determine BOD must have a pH between 6.5 and 7.5 For municipal sewage or effluent, the pH range is generally between 5 - 9, but the buffering capacity of the phosphate buffer will often bring the …

BOD - Biochemical Oxygen Demand- An Overview and its …

WebStep 1: Enter problem statement BOD rate constant k' = /day Rearation rate constant k'2 = /day Step 2: Enter or calculate the longitudinal dispersion coefficient, E Stream temperature Temp = °C (in whole degrees C [0-30]) Saturation concentration: 10.15 mg O 2 /L DO concentration at % saturation Results in a DO of: 10.15 mg O 2 /L WebUnderstand the concept of Determination of BOD and BOD Numericals with GATE & ESE - Civil course curated by Satyajeet Sahu on Unacademy. The Civil Engineering course is … sibelim horon

Determination of BOD and BOD Numericals - Unacademy

WebJul 19, 2016 · A BOD test was conducted at 20⁰C in which 15mL of waste sample was diluted with dilution water to 300mL. Given: Initial DO of diluted sample D1 =8.8mg/L … WebAverage seed BOD = (275 + 205 + 183 + 162)/4 = 825/4 = 206 mg/L. This value represents 206 mg/L BOD exerted by 300 mL of the seed material. In other words, a 300 mL sample … WebMay 3, 2013 · BODE = BOD (1-e-kt), where,k is a rate constant BOD is a constant. here,we have 4 unknowns.If we know 2 of them for example BODE at a given time,even then we … sibeliaz github