When do obnoxious odors appear

Assignment Help Civil Engineering
Reference no: EM13540175

1.A dairy that processes about 250,000 lb of milk daily produces an average of 65,100 gpd of wastewater with a BOD of 1400 mg/L. The principal opearations are bottling milk and maing ice cream with limited produciton of cottage cheese.  What is the wasewater flow and BOD per 1000 lbs of milk recieved and calculate the BOD and hydraulic equivalent opulations of daily wastewater discharge.

2.A fresh wastewater containing nitrate ions, sulfate ions, and dissolved oxygen is placed in a sealed jar without air.  In what sequence are these oxidized compunds reduced by the bacteria, and why is the substrate that is reduced first preferred by the hydrogen acceptor.  When do obnoxious odors appear?

Reference no: EM13540175

Questions Cloud

A steel beam is supported on each end by columns in : A Steel beam is supported on eachend by columns in a building.   The beam is designed tohold a 10kN heating unit at mid span. There are no other loads onthe beam.
Given a saturated solution of calcium carbonate : Given a saturated solution of calcium carbonate ( atequilibrium ) how many moles of calcium ion will remain insolution after the addition of 3.16x10^-4 M of Na2co3 at 25C?(Assume PH is constant)
Compute the crushing strength of concrete estimate the : The concrete cylinder 6 in x 12 in broke incompression at a load of 110000 lbs. Compute the crushing strength of concrete. Estimate the tensile strength and the modulus ofelasticity.
Suppose you are told that a process must achieve a : Suppose you are told that a process must achieve a 2.7 log removal of Giardia cysts.  What does that mean in terms of % remaining and % removal?
When do obnoxious odors appear : A dairy that processes about 250,000 lb of milk daily produces an average of 65,100 gpd of wastewater with a BOD of 1400 mg/L. The principal opearations are bottling milk and maing ice cream with limited produciton of cottage cheese.  What is the was..
Diameter circular concrete pile required to take a design : Using a safety factor of 2.00 and neglecting the pile dead weight, find the length of a 1' diameter circular concrete pile required to take a design load of 50 kips in a soil composed of two layers.
If the magnitude of cos t is less then write outan : The tangent function is defined as than (t)=sin(t)/cos(t). This expression can be evaluated to solve for the tangent as long as the magnitude of cos(t) is not too near to 0
Another alternativeis an anodized metal exterior attached : HJ Heinz Corporation is constructing a distribution facilityin Italy for products such as Heinz Ketchup, Jack Daniel's Sauces,HP steak sauce, and Lea & Perrins Worcestershire sauce. A15-year life is expected
What is the elevation at point 2 and the pressure at point 3 : A buried stock-water pipeline conveys water from a water source at Point 1, rises to pass up and over the peak of a hill (Point 2) before falling to Point 3 in the pipeline some

Reviews

Write a Review

Civil Engineering Questions & Answers

  What is the true weight of the water and tank at 10 sec

A large tank is used to calibrate the reading from a flow meter. Measurements of the system weight as a function of time are made. Water enters the tank vertically from the flow metering system at a speed of 20 ft/sec through a 1.5 in.

  Determine the effective size as well as the uniformity

Determine the effective size as well as the uniformity coefficient and coefficient of curvature for each soil. Determine also the percentages of gravel, sand, silt, and clay according to (a) ASTM, (b) AASHTO, (c)USCS, and (d) the British Standard.

  Determine the max rimpull of the tractor in each gear

A pneumatic-tired tractor with a 354 - hp engine has a maximum speed of 3.6 mph in 1st gear. Determine the max. rimpull of the tractor in each gear if the engine effieicency is 91%.

  Calculate the amplitude of vertical motion of the machine

A machine is supported on four steel springs for which damping can be neglected. The natural frequency of vertical vibration of the machine-spring system is 200 cycles per minute. The machine generates a vertical force p(t)=p0sinwt.

  Find pressure at the forward and rear corners along bottom

A closed box with horizontal base 6m x 6m and height of 2m is half-filled with water and is accelerated Ax=4.9 m/sec^2 and Ay=-2.4 m/sec. find the pressure at the forward and rear corners along the bottom.

  Detyermine what is the percent voids in the total mix

An asphalt concrete mixture includes 94% aggregate by weight. The specific gravities of aggregate and asphalt are 2.65 and 1.0, respectively. If the bulk density of themix is 147 pcf, what is the percent voids in the total mix

  Determine the rate of return that the company will make

Five years ago, GSI, an oil services company headquartered in Texas, issued $10 million worth of 12% 30-year bond with the dividend payable quarterly. The bonds have a call date of this year if GSI decides to take advantage of it.

  Determine hydrostatic force on one side of vertical gate

Determine the hydrostatic force on one side of a vertical clrcular gate of diameter 1.5m when its centre is immersed at a depth of 6m neto-w tne free surface of water in a reservoir.

  How to estimate the value of the fuel that is captured

Assume that the service station must fill refill the tank with 4.00 m^3 of gasoline once a week.Draw a mass balance diagram and estimate the annual loss of gasoline vapor (in kg/y) for the splash fill method

  Calculate the distance traveled by the prey

Calculate the distance traveled by the prey from the time it is dropped until the time it hits the ground. Express your answer correct to the nearest tenth of a meter.

  Determine what is the work function for the metal

582 nm photons are used in a photoelectric experiment. An electron is just released from metal with little or no kinetic energy at this frequency. What is the work function for this metal

  What are pressure heads at the interface and at the bottom

A stratified lake could be idealized as two layers: with 7.0 m of fresh water on top and 10.0 m of cold water (specific gravity = 1.02) on the bottom. What are the pressure heads at the interface and at the bottom of the lake, in terms of water col..

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