Ideal Reactor Design Equations and Formulas Calculator

Chemical Engineering Wastewater Water Treatment

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Problem:

Solve for Continuously Stirred Tank Reactor Concentration with Step Input

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Enter Calculator Inputs:

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Solution:

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Change Equation or Formulas:

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Residence Time

	theoretical mean residence time
	reactor volume
	reactor flow rate

Step input for completely mixed or
continuously stirred tank reactor CSTR

	concentration
	initial concentration
	time
	theoretical mean detention time

Pulse Input for completely mixed or
continuously stirred tank reactor CSTR

	concentration
	initial concentration
	time
	theoretical mean detention time
	concentration at n tank in series

Plug Flor Reactor PFR

step input: when t < tR, C = 0 when t >= tR, C = C0 pulse input: when t = tR, C = C0 when t < tR, C = 0 when t > tR, C = 0

Where:

tR	=	theoretical mean residence time
V	=	reactor volume
Q	=	reactor flow rate
C	=	concentration at time
C0	=	initial concentration
Cn	=	concentration at tank n
t	=	time
n	=	number of tanks

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References - Books:

Warren Viessman and Mark J. Hammer. 1993. Water Supply and Pollution Control. Harper Collins College Publishers, Inc. 5th ed.