Homework Help is Here – Start Your Trial Now!
Engineering
Chemical Engineering
(COD) and biological oxygen demand (BOD).

(COD) and biological oxygen demand (BOD).

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
See similar textbooks
icon
Related questions
Question
1. a. b. State the differences and the significance of chemical oxygen demand (COD) and biological oxygen demand (BOD). Wastewater collected from a processing unit has a temperature of 20°C. About 25 mL of wastewater sample is added directly into a 300 mL BOD incubation bottle. The estimated initial and final dissolved Oxygen (DO) of the diluted sample after 5 days are 9.5 mg/L and 2.5 mg/L, respectively. The corresponding initial and final DO of the seeded dilution water is 9.7 mg/L and 8.5 mg/L, respectively. Evaluate the effect of different key parameters on BOD values. Justify your answer with appropriate calculations.
Transcribed Image Text:1. a. b. State the differences and the significance of chemical oxygen demand (COD) and biological oxygen demand (BOD). Wastewater collected from a processing unit has a temperature of 20°C. About 25 mL of wastewater sample is added directly into a 300 mL BOD incubation bottle. The estimated initial and final dissolved Oxygen (DO) of the diluted sample after 5 days are 9.5 mg/L and 2.5 mg/L, respectively. The corresponding initial and final DO of the seeded dilution water is 9.7 mg/L and 8.5 mg/L, respectively. Evaluate the effect of different key parameters on BOD values. Justify your answer with appropriate calculations.
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Process Dynamics and Control, 4e
Process Dynamics and Control, 4e
Chemical Engineering
ISBN:
9781119285915
Author:
Seborg
Publisher:
WILEY
Industrial Plastics: Theory and Applications
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The
SEE MORE TEXTBOOKS