Problem 2 The schematic diagram below outlines the process for a water treatment plant, where waste water (32,000 m³/day), flows through the treatment plant with a mean residence time of 8 hr. Air is bubbled through the reaction tank to facilitate the breakdown of organic material with the use of microbe catalysts: microbes (organic waste) + O₂ CO₂ + H₂O Waste Water 32,000 m³/day (200 mg 0₂/liter) Treatment Plant Residence time, t= 8 hr Purified Water 32,000 m³/day (0 mg 0₂/liter) The entering feed has a biological oxygen demand (BOD) of 200 mg O₂/liter, while the effluent (i.e. exit stream) has a negligible BOD. What is the rate of reaction (decrease in BOD) in the treatment tank? [Note: you must explicitly state all assumptions]
Problem 2 The schematic diagram below outlines the process for a water treatment plant, where waste water (32,000 m³/day), flows through the treatment plant with a mean residence time of 8 hr. Air is bubbled through the reaction tank to facilitate the breakdown of organic material with the use of microbe catalysts: microbes (organic waste) + O₂ CO₂ + H₂O Waste Water 32,000 m³/day (200 mg 0₂/liter) Treatment Plant Residence time, t= 8 hr Purified Water 32,000 m³/day (0 mg 0₂/liter) The entering feed has a biological oxygen demand (BOD) of 200 mg O₂/liter, while the effluent (i.e. exit stream) has a negligible BOD. What is the rate of reaction (decrease in BOD) in the treatment tank? [Note: you must explicitly state all assumptions]
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
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![Problem 2
The schematic diagram below outlines the process for a water treatment plant, where waste water (32,000
m³/day), flows through the treatment plant with a mean residence time of 8 hr. Air is bubbled through the
reaction tank to facilitate the breakdown of organic material with the use of microbe catalysts:
microbes
(organic waste) + O₂ CO₂ + H₂O
Waste Water
32,000 m³/day
(200 mg 0₂/liter)
Treatment
Plant
Residence time, t= 8 hr
Purified Water
32,000 m³/day
(0 mg 0₂/liter)
The entering feed has a biological oxygen demand (BOD) of 200 mg O₂/liter, while the effluent (i.e. exit
stream) has a negligible BOD. What is the rate of reaction (decrease in BOD) in the treatment tank?
[Note: you must explicitly state all assumptions]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9b020904-503e-46f0-a83a-8c74ba785f01%2F3e3052ca-4201-40a3-b8ef-589701bd3782%2Fzosei0i_processed.png&w=3840&q=75)
Transcribed Image Text:Problem 2
The schematic diagram below outlines the process for a water treatment plant, where waste water (32,000
m³/day), flows through the treatment plant with a mean residence time of 8 hr. Air is bubbled through the
reaction tank to facilitate the breakdown of organic material with the use of microbe catalysts:
microbes
(organic waste) + O₂ CO₂ + H₂O
Waste Water
32,000 m³/day
(200 mg 0₂/liter)
Treatment
Plant
Residence time, t= 8 hr
Purified Water
32,000 m³/day
(0 mg 0₂/liter)
The entering feed has a biological oxygen demand (BOD) of 200 mg O₂/liter, while the effluent (i.e. exit
stream) has a negligible BOD. What is the rate of reaction (decrease in BOD) in the treatment tank?
[Note: you must explicitly state all assumptions]
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