Question: Q 4 ) A 5 - day BOD test is performed on a sample of raw wastewater. 6 mL of wastewater sample are added to

Q4) A 5-day BOD test is performed on a sample of raw wastewater. 6 mL of wastewater sample are
added to 300-mL BOD bottles and mixed with dilution water. The average dissolved-oxygen
concentration of the diluted wastewater samples on day 1 of the test was 7.6mgL and after incubation
at 20C for 5 days was 2.6mgL. Calculate the 5-day BOD of the raw wastewater. Since raw wastewater
already contains bacteria, it is not necessary to add "seed" to the sample or to the dilution water.
Q 4 ) A 5 - day BOD test is performed on a sample

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Civil Engineering Questions!

Q:

A 5 - day BOD test is performed on a sample of chlorinated wastewater effluent. Sixty milliliters of wastewater sample and 2 ml of seed are added to 3 0 0 - ml BOD bottles and mixed with enough...

Q:

(3) In a BOD test on a diluted wastewater sample (1:14 dilution, but not seeded), the initial DO is 8.4 mg/L and final DO after 5 days is 4.2 mg/L. If the reaction rate constant is 0.22/day,...

Q:

A five - day BOD test is performed on an industrial wastewater sample that contains no bacteria; therefore, a "seeded" BOD test is run. 1 0 m l of "seed" are added to 2 0 L of dilution water. 3 0 m l...

Q:

Problem 1 : ( 0 2 marks ) What is the theoretical COD of samples containing 6 0 0 m g L of ( a ) ethanol ( C 2 H 5 O H ) ( b ) phenol ( C 6 H 5 O H ) Problem 2 : ( 0 2 marks ) A 3 0 0 c m 3 sample of...

Q:

part b is more important tor me i got a already pkease do it with dteps i need to ubderstand 2. In a BOD test, 100 mL of a wastewater sample and 200 mL of dilution water were added to a 300 ml...

Q:

A BOD test was conducted for an industrial wastewater. The wastewater portion added to the 3 0 0 m L BOD bottle was 2 0 . 0 m L . At t = 0 ( right after dilution ) , the D O of the diluted wastewater...

Q:

Problem No . 1 ( 3 5 points ) A wastewater sample contains 2 5 0 m g L of B O D s . ( a ) What sample volume is required in the BOD bottle ( 3 0 0 mL ) , if the oxygen consumed by the sample is be...

Q:

Question 5 12 points Listen Calculate the 5 day BOD (in mg/L ) of a municipal wastewater sample from a condominium complex based on the following data: 1 10 ml if the wastewater added to a 250 ml...

Q:

Question 7 (2 points) Listen Calculate the 5 day BOD (in mg/L) of a municipal wastewater sample from a condominium complex based on the following data: 15 mL if the wastewater added to a 250 ml...

Q:

Question 7 (2 points) Listen Calculate the 5 day BOD (in mg/L) of a municipal wastewater sample from a condominium complex based on the following data: 15 mL if the wastewater added to a 250 ml...

Q:

Overapplied manufacturing overhead would result if: Multiple Choice the plant was operated at less than normal capacity. manufacturing overhead costs incurred were less than manufacturing overhead...

Q:

Calculate the excluded volume in terms of the molecular volume on the basis that the molecules are spheres of radius a. Evaluate the osmotic virial coefficient in the case of bushy stunt virus, a =...

Q:

6. Responde los siguientes cuestionamientos: a. Cules son las fuentes de capital a largo plazo ms comunes? b. Qu representa el costo de la deuda antes de impuesto y cmo impacta la tasa fiscal en el...

Q:

Hello, help me please to answer this question ( I have only one hour ) Since the inception of the corporate form of organization, business enterprises have found it beneficial to combine operations...