Determine the critical point

Assignment Help Civil Engineering
Reference no: EM13533347

The initial ultimate BOD after mixing of the Bergelmir Riveris 12.0 mg/L. The DO in the Bergelmir River after the wastewaterand river have mixed is at saturation. The river temperature is 10degrees celsius, the deoxygenation rate constant (kd) is 0.30 perday, and the reaction rate constant (kr) is 0.40 per day,Determine the critical point (tc) and the critical DO.

Reference no: EM13533347

Questions Cloud

How much energy in horsepower islost by the water while flow : A pipeline 1200ft long and 8in. in diameter hasat its inlet point 75ft of available hydraulic energy with respectto the reference level. The velocity in the pipe is 5fps; thepressure at its end is 12psi.
Determine the volume of traffic across the bridge : A bridge has been constructed between the mainland and anisland. The total cost (excluding toll) to travel across thebridge is expressed as C=50+0.5V, where V is the number of veh/dayand C is the cost/vehicle in cents. The demand for travelacross the..
What is the average chear stress in the glue joint between : Two 1/2 inch rods are spliced together by glueing a 2 inch section of plastic pipe over the rods ends. If a tensile force P = 350 lb is applied to the spliced nylon rod, what is the average chear stress in the glue joint between pipe and the rods?
Calculate expected error l if a theodolite has direct : The bottom of a rectangular flume is 5mabove reference level. The depth of the water in the flume is 3m.The average velocity is 1.7 m/s. Compute the total hydraulic energyat the surface of the water and at the bottom of the flume.
Determine the critical point : The initial ultimate BOD after mixing of the Bergelmir Riveris 12.0 mg/L. The DO in the Bergelmir River after the wastewaterand river have mixed is at saturation. The river temperature is 10degrees celsius
Write a statement of electroneutrality for a solution : A groundwater has an alkalinity of 200 mg/L as CaCO3.Assume that all of the alkalinity is bicarbonate. Express thisbicarbonate concentration in units of meq/L, moles/L, and mg/L.
Find the force that is needed to produce : An aluminum 2024 T3 bar of uniform cross sectional area is subjected to a tensile force in the longitudinal direction. if the lateral surface of the bar is confined and not allow to contract during loading
Salary increases in engineering job are estimated : An enginnering student has just finished the freshman year and has received an offer of $20,000 per year in a full-time job, with prospects of salary increasing 3% per year until retirement after 33 years. If employement is taken, the student will li..
Determine the scale of the project graphically andanalytical : Assume the following equations for the total benefit and totalcost of a reservoir project as afunction of scale, Q, expressed asmillion gallons water delivered per day(MGD):

Reviews

Write a Review

Civil Engineering Questions & Answers

  What is the average specific gravity of solid constituents

a soil sample is obtained by pushing a 16 in long tube into the side of a pit. the tube has an inside diameter of 3 in. and weighs 1.8 lb. The soil in the tube is trimmed so that its ends are flush with the ends of the tube.

  Calculate what is the force required at a constant rate

A 20-kg iron ball is moving at 100 km/hr should be accelerated at a constant rate of 10 m/(sec)^2. What is the force required

  Determine reaction components that ball exert on rod abc

The smooth surface that provides the support at C lies in the y-z plane. Determine the reaction components that the ball and socket exert on rod ABC, the tension in cable BD, and force the smooth wall exerts on end C of rod ABC.

  What is the energy loss in the basin with and without blocks

If the river depth is larger than the subcritical sequent depth, a submerged hydraulic jump forms. Sometimes, concrete blocks called "baffle blocks" are placed on the stilling basin floor to help the hydraulic jump form within the basin.

  Draw envelope shear and moment diagrams taking into accounts

For an intermediate beam in 3 bays by 3 bays (each bay is 20' by 20') floor plan, draw the envelope shear and moment diagrams taking into account effect of pattern loading.

  Design a three story office building

Design a three story office building

  Under what condition will both the soil have the same weight

Given Specific Gravity for Soil A is 2.00 and Specific Gravity for Soil B is 4.00, under what condition (Volume of Soil A and Soil B) will both the soil have the same weight

  Magnitudes of the additional loads

Determine the magnitudes of the additional loads that must be applied at B and F if the resultant of all six loads is to pass through the center of the mat.

  How much force must he exert to stay submerged on the bottom

When a 60 kg boy floats in the pool 93% of his body is submerged. How much force must he exert to stay submerged on the bottom of the pool to remain fully submerged

  Determine the adequacy of steel beam to support uniform load

determine the adequacy of W16x40(A-36) of steel beam that supports a uniform load of 800 pounds per foot over a span of 30 feet

  How to calculate the size of the truck fleet needed

An underground limestone mine with production of 12,000 tons/day will use trucks for the main haulage between an ore pass and a hoist skip pocket. The hauling distance is 5500 ft. The main haulage drift is horizontal and is 12.5 ft wide and 12.5 f..

  Determine a soil with a hydraulic conductivity and depth

Is a soil with a hydraulic conductivity of 1*10-5 cm/s and depth of 10 ft equivalent to a soil with hydraulic conductivity of 1*10-6 cm/s and depth of 5 ft

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd