For the measurement of the BOD of a wastewater sample from textile industry, five different dilutions (0.5%, 1%, 2%, 5% and 10%) of 1 L are prepared, with the addition of 2 mL of seed. Three different dilutions (0,5%, 2% and 5%) are used for seed corrections. The results of DO measurements are given below. Calculate the BOD5 concentration of the sample.
For the measurement of the BOD of a wastewater sample from textile industry, five different dilutions (0.5%, 1%, 2%, 5% and 10%) of 1 L are prepared, with the addition of 2 mL of seed. Three different dilutions (0,5%, 2% and 5%) are used for seed corrections. The results of DO measurements are given below. Calculate the BOD5 concentration of the sample.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
For the measurement of the BOD of a wastewater sample from textile industry, five different dilutions (0.5%, 1%, 2%, 5% and 10%) of 1 L are prepared, with the addition of
2 mL of seed. Three different dilutions (0,5%, 2% and 5%) are used for seed corrections. The results of DO measurements are given below. Calculate the BOD5 concentration of the sample.
Transcribed Image Text:Sample
Dilution Ratio (%)
DO Day 1 (mg/L)
DO Day 5 (mg/L)
0.5
9.08
7.80
1
9.04
7.30
9.10
6.42
5
9.06
3.46
10
White precipitate
9.04
Seed
Dilution Ratio (%)
DO Day 1 (mg/L)
DO Day 5 (mg/L)
0.5
8.88
6.88
8.84
0.82
8.82
White precipitate
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning