Determine the required cstr volume v (gallons)

Reference no: EM13550435

Design a CSTR to provide pre-treatment for an industrial wastewater that flows at a rate of 1000 gpm (gallons per minute) with a phenol concentration of 200 mg/l. Phenol undergoes a first-order decay reaction in the CSTR with rate constant, k = 0.50 hr^-1. The current industrial pre-treatment permit for Phenol is 20 mg/l. The permit limitation may be changed, either higher or lower, in the future.

Determine the required CSTR volume, V (gallons), and hydraulic residence time, t = V/Q (hours), to comply with the current industrial pre-treatment permit limitation for phenol.

Plot a graph with CSTR effluent phenol concentration (mg/l) along the vertical axis as a function of CSTR hydraulic residence time, t (hours), on the horizontal axis for assessing the impact of changes in the permit limitation. Comment on a type of "Law of Diminishing Returns" on effluent phenol concentration versus 't' that applies to CSTR design for first-order decay reactions.

Reference no: EM13550435

Questions Cloud

What is the scale of the model in terms of the prototype : A maximum flow rate of 6 CFS is available for a river model. This corresponds to 30,000 CFS for the prototype. What is the scale of the model in terms of the prototype size?

The basin dimensions if increments of 1.0 inch are used : A rapid-mixing basin is to be designed for a water coagulation plant, and the design flow for the basin is 4.0 MGD (million gallons per day). The basin is to be square with a depth equal to 1.25 times the width.

Determine by trigonometry the magnitude and direction : Two parallel disks of diameter D are brought together, each with a normal speed of V. when their spacing is h, what is the radial component of convective acceleration at the section just inside the edge of the disk (section A) in terms of D, V, and h..

You are paying into a mututal fund that earns compound : You are paying into a mututal fund that earns 6% compound interest. If you are making an annual contribution of $10000, how much will be in the funds in 20 years? What if the fund makes 10%? What if it loses 5% per year?

Determine the required cstr volume v (gallons) : Determine the required CSTR volume, V (gallons), and hydraulic residence time, t = V/Q (hours), to comply with the current industrial pre-treatment permit limitation for phenol.

Calculate the speed of the water relative to the hydrofoil : A two dimensional flow field is defined by u = x^2 - y^2 and v = -2xy. Is the flow rotational or irrotational?A speedboat on hydrofoils is moving at 20 m/s in a freshwater lake

What is the significance of the compresive strength : If the pulleys are fixed to the shaft, determine the magnitude of the tension T and the x,y,z componenet sof reaction at the smooth thrust bearing A and smooth journal bearing B.

Calculate the hydraulic conductivity k of the soil sample : A falling head permeability test was carried out on a 15 cm long sample of silty clay. The diameter of the sample and the standpipe were 9.8 cm and 0.75 cm, respectively. The water level in the standpipe was observed to fall from 60 cm to 45 cm in 12..

Which chemical will be transported the farthest downgradient : Groundwater has been contaminated with three chemicals: benzene (log Kow 2.13), pentachlorobenzene (log Kow 5.03), and naphthalene (log Kow 3.36). The aquifer (rs = 2.3 g/cm3; h = 0.4; foc = 0.02)

User Account

All Pages