A sample of wastewater is mixed with 2 parts clean water and placed in a bottle. The pO of a sample in a closed bottle is initially 10 mg/L. After 5 days, it has dropped to 2 mg/L. The reaction rate constant is 0.25 day ¹. What is the BOD5? (in mg/L) 2

A sample of wastewater is mixed with 2 parts clean water and placed in a bottle. The pO of a sample in a closed bottle is initially 10 mg/L. After 5 days, it has dropped to 2 mg/L. The reaction rate constant is 0.25 day ¹. What is the BOD5? (in mg/L) 2

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Landfills

The landfill is a site used for the disposal of waste materials. The landfill is a solid waste facility that is often known as a dumping ground. The image below shows a landfill site in Hawaii. Landfilling is the most ancient and common method used for the disposal of waste. For the landfill, a deep trench is constructed in an isolated place away from the city. The trench for landfills is designed properly after analyzing the total population and the waste generation per capita. The waste is dumped into the trench and after every layer of waste, a layer of soil is spread on the top of it.

Question

A sample of wastewater is mixed with 2 parts clean water and placed in a
bottle. The pO of a sample in a closed bottle is initially 10 mg/L. After 5
days, it has dropped to 2 mg/L. The reaction rate constant is 0.25 day ¹.
What is the BOD5? (in mg/L)
red
2

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