### Define concept of cstr

Assignment Help Civil Engineering
##### Reference no: EM13142642

A lagoon is to be designed to accommodate an input flow of 0.10 m^3/s of nonconservative pollutant with concentration 30.0mg/L and reaction rate 0.20/day. The effluent from the lagoon must have pollutant concentration of less than 10.0mg/L. Assuming complete mixing, how large must the lagoon be?

#### Questions Cloud

 Generally accepted auditing standards : Audit working papers are an integral part of an examination in accordance with generally accepted auditing standards. a) Describe three major functions of the audit working papers. b) Distinguish between the permanent working paper file and the curre.. Persuasive claim: overcharged and unhappy : You want to straighten out this matter, and you can't do it by telephone because you suspect that you will need a written record of this entire mess. Write a claim request to Customer Service, Country Inn, Inc., 428 Church Street, Nashville, TN 37219.. What is the process of movement of carbon dioxide : What is the process of movement of carbon dioxide from, for example, your toe to outside the body? What organs, arteries and veins does it pass through? Compute jose gross income from the partnership : The pertnership earnings before partners' withdrawals for 2010 totaled \$900000. compute jose's gross income from the partnership for 2010 Define concept of cstr : Concept of CSTR, A lagoon is to be designed to accommodate an input flow of 0.10 m^3/s of nonconservative pollutant with concentration 30.0mg/L and reaction rate 0.20/day What are the names of the arteries and veins : When oxygen moves from outside the body to inside the body to, for example, your toe, what are the names of the arteries and veins it goes through? Find probability-more women are in engineering workforce : Women make up 24% of the science and engineering workforce. In a random sample of 400 science and engineering employees, what is the probability that more than 120 are women? Example of third-degree price discrimination : Describe the process by which the competitive market establishes a price at which all firms are just earning normal profits. Define concentration of pollutant in the effluent leaving : A lagoon with volume 1200 m^3 has been receiving a steady flow of a conservative waste at a rate of 100m^3/day for a long enough time to assume that steady-state conditions apply

### Write a Review

#### Determine the horizontal deflection of joint

The maximum vertical load and horizontal load have been identified and shown in the figure. Under this loading condition, you are asked to determine the horizontal deflection of joint C.

#### Radius of the steel wire ehen stretching with other wire

The aluminium wire has a radius of 1.1mm. What must be the radius of the steel wire if it is to stretch the same distance as the aluminium wire, so that the two wires maintain equal lengths after the masses are attached?

#### Determine the total shortening of the pile

a) Determine the total shortening of the pile in terms of F, L, A, and E; b) If F=96 kips, L=40 ft., A=100in2, and E=1.5 x 106 psi, how much does such a pile shorten?

#### Design a cantilever

Need to design a cantilever retaining wall 8m high, saturated unit weight is 16kn/m 3 , surcharge is 7kn/m 2 , load above wall supported on wall stem

#### Compute the maximum acceptable service load

Compute the maximum acceptable service load on an A36 steel plate tension member 1/4in.x12in. having a single line of holes parallel to the direction of loading. The load is 25% dead load and 75% live load, and 7/8in. diameter bolts are used.

#### Maximum acceleration from rest

The base engine develops 200 ft-lb of torque, and a modified version of the engine develops 240 ft-lb of torque. If the overall gear reduction ratio is 8 to 1, what is the maximum acceleration from rest (in ft/sec^2) for:

#### Maximum tensile and compressive bending stresses

When P = 800 lb, A) Draw the shear and bending moment diagram along its length; B) Determine the maximum tensile and compressive bending stresses; and C) determine the maximum shear stress.

#### Environmental soil cleaning company

How much money should an environmental soil cleaning company borrow to finance a site reclamation project if it expects revenue of \$140,000 in the first year increasing by 3% per year over the 5-year cleanup period? The interest rate is 8%.

#### Compute the maximum acceptable tensile load

Compute the maximum acceptable tensile load Pu, on an angle L6x4x3/4 when connected to both legs. The 4 in. leg contains a single gage line of 7/8in. diameter bolts, and the 6in.

#### Problem on coefficient of rolling resistance

What is the minimum distance from the stalled car at which the driver could apply the brakes and still stop before hitting it? Assume coefficient of rolling resistance of 0.013.

#### Related geotechnical engineering

This material is related Geotechnical Engineering, please only answer if you are certain and sure of your answer. An undisturbed soil sample has a dry unit weight of 112 pcf with a specific gravity of solids equals to 2.68.

#### Engine suspended from a spreader beam

The 3.5-Mg engine is suspended from a spreader beam having a negligible mass and is hoisted by a crane which exerts a force of 40 kN on the hoisting cable. Determine the distance the engine is hoisted in 2.4 s, starting from rest.