2. Given the following Ks= 10mg/l; q^=18mg/mg VSSa-d; Kd= .25d-1; Y= 0.7; Sᵒ=1,000mg/l; Q = 1000 m3/d; Xaᵒ=0. Determine the size of reactor required to achieve an effluent substrate concentration of 1 mg/l for a. a system with no input biomass b. a system with input biomass of Xo= 10 mg/l, 100 mg/l and 1000mg/l c. a system with Xo = 100 mg/l and effluent s = 0.1, 1, 10, and 100 mg/l

2. Given the following Ks= 10mg/l; q^=18mg/mg VSSa-d; Kd= .25d-1; Y= 0.7; Sᵒ=1,000mg/l; Q = 1000 m3/d; Xaᵒ=0. Determine the size of reactor required to achieve an effluent substrate concentration of 1 mg/l for a. a system with no input biomass b. a system with input biomass of Xo= 10 mg/l, 100 mg/l and 1000mg/l c. a system with Xo = 100 mg/l and effluent s = 0.1, 1, 10, and 100 mg/l

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: What is the hydraulic retention time? b. What would be concentration decay model along the relative…

A: a) Hydraulic detention timeThe hydraulic detention time (th) is given by th =VQ=3000 m3600m3day=5…

Q: feeding continuously 6 g/L stock tracer soluti mine the theoretical tracer concentration in the he…

A: According to given data CFSTR Volume= 45 m3Constant flow in reactor= m3/d 6g/L stock tracer solution…

Q: A- An effluent PST containing 225 mg/L of BOD5 is to be treated aerobically in a CMR without…

A: Amount of BOD5 present in the effluent PST = 225 mg/l Provided there is no recycle Ks=60 mg/l K =5…

Q: for a kaolin plant to dry 20 tph pressure filtered kaolin containing 22% H2O. Dry kaolin moisture…

A: the given coin two external layers are made out of a 75 wt % cu 25% NI compound with…

Q: 5. A disinfection process destroys E.coli in water. The influent c coliforms/mL. If the reactor…

Q: What is the effluent BOD5 of an activated sludge plant, given So = 150 mg/1, y = 0.5 kg biomass/kg…

Q: Dinitrogen tetraoxide (N204) decomposes into nitrogen dioxide according to the following balanced…

A: To solve the given problem, we need to follow these steps Part (a): Calculate the equilibrium…

Q: Calculate the theoretical oxygen demand of the ASP reactor with a reactor inflow rate of 23000…

A: Give Data :- So = 165 mg/l S = 26 mg/l Q = 23000 m^3/day Total Yield Y = 0.48 SRT = 7 days Decay…

Q: lorine concentration to inactive 2 logs of Cryptosporidium at a water temperature of 25oC, if the…

A: Vb =QKlnNoN , Vb = volume of compact chamber =2×2×1 =4m3 Q =…

Q: Look at the following information for a completely mixed biological reactor: tank volume = 200 m³;…

A: Given- Tank volume V=200 m3 Flow rate=50 m3/day Substrate concentration=95 mg BOD5/L Ks=60 mg BOD5/L…

Q: following data : ) Qty. of soft water required per hour = 25,000 litres (ii) Hardness present in raw…

Q: Develop a mathematical expression of three phase fluidized bed reactor for first order catalytic…

A: Fluidized Bed Reactor : The fluidized bead reactor has the ability of processing the large volumes…

Q: thermal oxidizer incinerator operates as a plug flow reactor at a temperature of 250 deg C. The…

Q: For an SBR process, the sludge takes 45 minutes to settle and the depth of liquid in the reactor is…

A: Given data- SBR process Sludge takes 45 minutes to settle. The depth of liquid in the reactor is 40%…

Q: Calculate the gas molecular weight.

A: Given:- T=25oC1 atmV=80m3/minN2=75%O2=5%H2O=8%CO2=12%To find:-molecular weight

Q: Disinfection of 20 MLD water is done with 30 kg chlorine to achieve 99% efficiency in a contact time…

Q: A waste stream flows at 2,000 liters/day with a concentration of 60 mg/l of hazardous chemical A.…

Q: Sea water can be desalinated by using reverse osmosis. A plant treats 4,000 m3 /day of feed water…

Q: 250 lbs. of contaminated soil containing 0.500 g of a pollutant per kilogram of soil will be treated…

A: Given, Mass of contaminated soil = 250 lb or 113.4 kg Concentration of pollutant, Co = 0.5 gm/kg…

Q: 1) Estimate the biomass concentration in a CSTR aeration tank with the following operating…

Q: Q2) A waste of 600 m/hr flow rate with an ultimate BOD0 = 140 mg/l is to be treated in an activated…

A: Q = 600 m3hr y = .65 kd = .055 /day So = 140 mgl Se = 20 mgl θc= 10 days

Q: A batch reactor is to be used to treat raw water to achieve 95% pollutant removal. The pollutant has…

A: According to given data A batch reactor is to be used to treat raw water to achieve 95% pollutant…

Q: A plug-flow reactor (PFR) has an influent flow with a concentration of 100 mg/L of A and a flowrate…

A: Reference : Water Resources, Hydrology. Given : Concentration and flow rate. Rate constant for first…

Q: A waste of 600 m³/hr flow rate with an ultimate BOD20 = 140 mg/l is to be treated in an activated…

A: According to given data A waste of 600 m³/hr flow rate with an ultimate BOD20 = 140 mg/l is to be…

Q: Q2) A waste of 600 m*hr flow rate with an ultimate BODZ° = 140 mg/l is to be treated in an activated…

A: Given data: Kd=0.055 day-1Q=600 m3/hrθc=10 daysS=20 mg/lXU=15000 mg/lultimate Bod (SU)=140…

Q: Q1) At a particular time, the storage in a river reach is 60 x 103 m 3 . At that time, the inflow…

Q: Consider an activated sludge WWTP (wastewater treatment plant). Influent comes in at 28 million…

A: As per guidelines, we are supposed to answer only first 3 sub-parts. Kindly repost other parts in…

Q: An ASP operating at equilibrium has an organic loading rate of 2 kg/m³/d and has MLSS of 3000 ratio…

Q: Dr. Example 7: A water plant treating 30000 m³/day. The rapid mixing is used tank blend 35 mg/L of…

Q: For an SBR process, the sludge takes 45 minutes to settle and the depth of liquid in the reactor is…

A: total time allowed for one operation in SBR processT=45+20+10+60=135 minFlow rate Q=55000…

Q: A plug flow and a CFSTR biological reactor are both operating with an influent substrate…

A: Answer We need to calculate Volume of both the reactor first Volume of plug flow reactor is given by…

Q: The disinfection of water is carried out in a stirred tank. The treatment process has water as the…

A: Given: The input rate is 48000 L/h. The volume of tank is 3500 L. The rate of disinfectant is…

Q: Biomass and substrate mass balance equations can be merged giving QwXR/VX=Y/X (Qo/V) (So-S)-kd (i)…

A: We know that Hydraulic retention time and Solid retention time is as follows:

Q: The removal of phenol in an industrial waste stream by microorganisms can be characterized as a…

A: Step 1: To determine the most efficient reactor configuration for the removal of phenol in the…

Q: 3. A solution is known to contain 42 mg/L of C6H₁2O6. Determine the theoretical oxygen demand.

Q: .40. A solution is known to contain 50 g/m³ of CH3(CH₂),COOH and 42 g/m³ of NH3-N. Determine the…

Concept explainers

Evaporation

This topic is majorly taught in various undergraduate and postgraduate degree courses of:

Question

100%

2. Given the following Ks= 10mg/l; q^=18mg/mg VSSa-d; Kd= .25d-1; Y= 0.7; Sᵒ=1,000mg/l; Q = 1000
m3/d; Xa=0. Determine the size of reactor required to achieve an effluent substrate concentration of 1
mg/l for
a. a system with no input biomass
b. a system with input biomass of Xo= 10 mg/l, 100 mg/l and 1000mg/l
c. a system with Xo = 100 mg/l and effluent s = 0.1, 1, 10, and 100 mg/l

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Data

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Step 9

Trending now

This is a popular solution!

Step by step

Solved in 9 steps with 10 images

SEE SOLUTION Check out a sample Q&A here

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.

Similar questions

Environmental Engineering: Water Treatment Please consider each of the following points: a. Determine the required residence time for each reactor of 3 equal volume CSTRs in series given a zero-order reaction with a reaction rate constant, k = -5 mg/L hr. The influent concentration is 125 mg/L and 95% conversion is required across the three-reactor system. What is the total reactor system residence time? b. Determine the required residence time for a single CSTR given the same conditions. c. Determine the required residence time for a PFR given the same conditions. d. Why are all three residence time the same?
pls answer completely
I need hand written solution only otherwise I will down vote
Wastewater is treated with an activated sludge plug flow reactor, similar to one seen at the Norman Water Reclamation Facility. The BOD5 after primary treatment is 100mg/L and the effluent limit is 5 mg/L BOD5. Use 1.00 h-1 as the maximum specific growth rate constant and typical values for the other biokinetic constants. The biomass concentration in the reactor is 2,500 mg/L MLSS based on a recycle ratio of 1. Calculate the mean cell residence time, in hours for this system
A continuous flow through the activated sludge process treats 1500 m3/day flowwith a BOD of 250 g/m3. Given parameters are Y=0.6, Maximum sp. substrate utilizationrate=2.0 g BOD/g cells-day, decay = 0.1/day and Ks= 4. Make typical assumptions ofactivated sludge as needed.a) Calculate the mean cell residence time and reactor volume for 99 % BOD removal.b) Repeat these calculations for a system that recycles 50 % of cells in 10 % of theinfluent flow
A batch reactor will be utilized to treat raw water in order to attain a pollutant removal rate of 95 percent. Assuming that the pollutant has a second-order reaction rate constant of 0.35 L/(mg.day), what is the minimum amount of water that must be present in the batch reactor in days?
Q20. Calculate the first-order reaction rate constant in days for the given data. The number of CFSTRS in series are 5. The influent BODS is 160 g/m and final effluent BOD5 is 10 g/m. The hydraulic residence time of each reactor is 1 h. Determine the detention time of a PFR that will produce same effluent quality as that from the series of reactors.
Underneath a conventional plug flow reactor and a plug flow reactor with tapered aeration that both use sludge recycle, sketch graphs of DO, DO Uptake, S, and Xa, versus distance from the inlet of the reactor
An activated-sludge system is to be used for secondary treatment of 15,000 m3/d of municipal wastewater. After primary clarification, the BOD is 130 mg/L, and it is desired to have not more than 5 mg/L of soluble BOD in the effluent. A completely mixed reactor is to be used, and pilot-plant analysis has established the following kinetic values: Y = 0.6 kg/kg, kd = 0.07 d-1. Assuming an MLSS concentration of 2,750 mg/L and an underflow concentration of 11,000 mg/L from the secondary clarifier, determine the followings. [Use θc (MCRT or SRT) = 10 day.] 5.1. The volume of the reactor. 5.2. The mass and volume of solids that must be wasted each day. 5.3. The recycle ratio. Hint: θc = VX/QwXu : MCRT (mean cell-residence time) [or SRT (solids retention time)]; average time microbes spend in reactor = ratio of total biomass in reactor to biomass wasted per given time; currently most commonly used design parameter F/Mv: inversely proportional to SRT; ≈U (cell's specific substrate…
A continuous flow, thoroughly mixed reactor will be utilized to treat raw water in order to attain a pollutant removal rate of 95 percent. Assuming that the pollutant has a second-order reaction rate constant of 0.35 L/(mg.day), what is the minimum amount of water that must be present in the batch reactor in days?
For the following wastewater and biomass characteristics: Q0 = 50 m3/d S0 = 60 mg NH4+-N/l Xi0 = 20 mg/l k= 2.5 mg NH4+-N/mg VSS-d K = 1 mg/l Y = 0.34 g VSS/g NH4+-N b = 0/day Calculate the volume of the CSTR required for 50 and 98% removal of ammonia by oxidation to nitrate.
Environment aerobic.