What is the resulting solids concentration

Assignment Help Civil Engineering
Reference no: EM13555161

Raw primary sludge at a solids concentraion of 4% is mixed with waste activated sludge at a solids concentration of .5%. The flows are 20 and 24 gal/min respectively. What is the resulting solids concentration? This mixture is next thickened to a solids concentration of 8% solids. What are the quantities (in gal/min) of the thickened sludge and thickener overflow (water) produced? Assume perfect solids capture in the thickener.

Reference no: EM13555161

Questions Cloud

What are the northing and easting coordinates for station b : The coordinates for station A are 1023.34 N and 988.56 E. What are the northing and easting coordinates for station B that is located 40 feet due east of A, and 22.32 feet due south of A
Find the maximum allowable tensile force : A 4-cm- diameter rod of aluminum 7075-T6 is to subjected to an axial tensile force such that the factor of safety based on the yield stress on 1.75. Find the maximum allowable tensile force. The yield stress of the aluminum 7075-T6 is o-y= 500MPa.
Use the doubling time approximation to estimate : Use the doubling time approximation (3.5) to estimate the exponential rate of growth that would produce those numbers. Use the exponential growth equation (3.6) to find the growth rate
Determine the diameter of commercial steel pipe required : World population 10,000 years ago has been estimated at about 5 million. what exponential rate of growth would have resulaed in the population in 1850 , which is estimated at 1 billion ? had that rate continued , would the population have been in the..
What is the resulting solids concentration : Raw primary sludge at a solids concentraion of 4% is mixed with waste activated sludge at a solids concentration of .5%. The flows are 20 and 24 gal/min respectively.
What fraction of the flue gas stream would need to be bypass : An electrostatic precipitator for a coal-fired power plant has an overall particulate recovery of 95%. The company engineer decides that this is too good, that it is not necessary to be this efficient
What is the pressure difference measured by the manometer : The "U"-tube manometer containing mercury of density 13600 kg/cubic meters is used to measure the pressure drop along a horizontal pipe.
What tensile force should be applied to the bar to maintain : Suppose that in an apparatus it is necessary to maintain precisely the cross section of a 20mm circular nickel steel bar. If this bar is heated to 200 deg Celcius
A cast brass rod 60mm in diameter and 150mm long is compress : A cast brass rod 60mm in diameter and 150mm long is compressed axially by a uniformly distributed force of 200kN. Determine the increase in diameter caused by the applied force, E=85GPa; poisson's rato=.30

Reviews

Write a Review

Civil Engineering Questions & Answers

  Lets design the members if they are made of woodcompression

1.for the pinned frame below subjected to a 500 kn lateral force what are the internal forces in each member? 2.for a

  Mixed liquor volatile suspended solids

For a mixed liquor volatile suspended solids (MLVSS) of 1800 mg/L, what is the total return solids flow rate?

  Determine force required to drag a small barge in canal

Determine the force required to drag a small barge (10 ft by 30 ft) in a shallow canal (3 inches deep) in order to maintain a velocity of 5 ft/sec. Assume that the fluid is behaving in a Newtonian fashion and the water temperature is 68 degree fah..

  Calculate the amount you will have from the investment

You have just received $10,000 witch which you can do anything. You have decided to invest the money over a long period of time and then use it to make a down payment on a vacation home.

  Determine the minimum necessary clearance height

Determine the minimum necessary clearance height of the overpass and the resultant elevation of the bottom of the overpass over the PVI. (ignore the cross-sectional width of the overpass)

  Compute the point and fresh water pressure head

The fluid pressure in the screen of a piezometer in a saline aquifer is 7.688 x 10^5 N/m^2. The fluid density is 1055 kg/m^3 and the temperature is 14 degrees C. The elevation of the piezometer screen is 45.9 m above sea level.

  How much settlement has occurred when the time factor is

If the final consolidation settlement is expected to be 1.0m, how much settlement has occurred when the time factor is 0.2 andwhen it is 0.7?

  Find the expanded depth of the bed after the backwash

Find the expanded depth of the bed after the backwash when initial depth of the bed is 3 ft using given conditions. m = 0.01g/cm/sec, T = 25oC, rs = 2.65, r=1, washrate = 1.5 cm/sec, ks2 = 196.

  What fraction of the flue gas stream would need to be bypass

An electrostatic precipitator for a coal-fired power plant has an overall particulate recovery of 95%. The company engineer decides that this is too good, that it is not necessary to be this efficient

  Calculated the work and heat transfer during the process

The initial conditions of the helium are 7 ft^3, 80 psia, and 100 F. The helium expands reversibly according to process PV^1.5=C until the pressure reaches 15 pisa.

  What diameter of circular conduit flowing would be required

What diameter of a circular conduit flowing full would be required to carry the same quantity of flow as in a concrete trapezoidal channel of 20 ft width and 45 degrees side slopes, running at a depth of 3.0 ft

  Determine the final speed of the cart

Two men A and B, each having a weight of 160lb stand on a200lb cart. Each runs with a speed of 3ft/s measured relativeto the cart. Determine the final speed of the cart if:

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