Atrazine is an herbicide widely used for corn and

Assignment Help Civil Engineering
Reference no: EM13562656

Atrazine is an herbicide widely used for corn and is a common groundwater pollutant in the corn-producing regions of the United States. The log Kow for atrazine is 2.65. A typical application rate is 0.25 g/m2.  Assume a volume of soil of 1 m3 and calculate the fraction of total atrazine that will be adsorbed to the soil given that the soil has an organic carbon content of 2.5%.  The bulk density of the soil is 1.25 g/cm3; this means that each cubic centimeter of soil (soil plus water) contains 1.25 g of soil particles. The porosity of the soil is 0.4.

Reference no: EM13562656

Questions Cloud

Determine in the rate of carbon 14 : In dating using radiocarbon, the amount of C^14 remaining at the time of measurement is expresed as a percentage of modern carbon.  For example that the 30% modern carbon
Determine the modulus of elasticity of concrete by the aci : Determine the Modulus of Elasticity of Concrete by the ACI formula for a concrete cylinder that has a unit weight of 120pcf (1920kg/m^3) and a compressive strength of 3000 psi (21MPa).
How much power is required to overcome aerodynamic drag : A new sports car has a drag coefficient of 0.30 and a frontal area of 21 ft 2 , and is traveling at 110 mi/h.How much power is required to overcome aerodynamic drag if ? = 0.002378 slugs/feet3 ?
What will its length be if a force of 420lbs is applied : Water at 68 degrees f is in a long, rigid cylinder of inside diameter 0.600 in. A plunger applies pressure to the water. If, with zero force, the initial length of the water column is 25.00 in, what will it's length be if a force of 420lbs is applied..
Atrazine is an herbicide widely used for corn and : Atrazine is an herbicide widely used for corn and is a common groundwater pollutant in the corn-producing regions of the United States.  The log Kow for atrazine is 2.65. A typical application rate is 0.25 g/m2.
What is the vial radius of curvature : With the bubble centered, a 100-m length sight gives a reading of 1.352 m. After moving the bubble four divisions off center, the reading is 1.410 m. For 2-mm vial divisions
What is the velocity of an electron that falls through : What is the velocity of an electron that falls through a magnetic field aligned electric potential of volts across an accelertion region that is 10 k long? (neglect collisions and gravity and assume the electron has zero degree pitch-angle (i.s movin..
Determine the direction of the resultant force measured : The driver of a car traveling up a 2% grade at an initial speed of Vo applied the brakes abruptly and the vehicle slid to a complete stop at an average deceleration of 8ft/s^s. Was the pavement wet or dry?
Determine the normal strain in each bar : The two bars shown in the figure are used to support a load P. When unloaded, joint B has coordinates (0, 0). After load P is applied, joint B moves to the coordinate position (0.35 in., -0.60 in.). Assume a = 11 ft, b = 6 ft, and h = 8 ft. Determine..

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine how many feet of fence will be needed

A local contractor has just bought warehouse and decided to fence in an area of 1152 square feet behind the warehouse.He plans to use the wall of the building as one of the four sides that will enclose the rectangular area.

  Does the spring force increase or decrease and by how much

If the temperature of the flashlight increases to 120oF, does the spring force increase or decrease and by how much. Take the casing wall to have an outer diameter of 1.5 in., thickness 0.125in.,length L = 3 in., and elastic modulus of 300ksi.

  Determine the bending moment in a rectangular beam

Determine the bending moment in a rectangular beam 2 in. wide and 4 in. deep, if the maximum bending stress is 20,000 psi.

  Cd triaxial compression test

CD triaxial compression test the specimen was consolidated under an effective confining stress

  Determine the tradeoff between the cost and the energy head

Two materials (wrought iron, ks = 0.046 mm, and galvanized iron, ks = 0.15 mm) are being considered for a new pipeline. The expected discharge is 0.15 m3/s. Both the head loss and cost are sought for. Wrought iron pipe costs 5 cents more than the gal..

  Find summer values for oxygen demand and oxygen tranfer

A fine-bubble aeration basin has a flow of 21.5 mgd, an influent BOD of 180 mg/l, 31 mg/l of mmonia, and effluent of 10 mg/l. During the winter, the wastewater temperature of 14.8 degrees C does not nitrify.

  Calculate the required total station reading towards b

Two control points A "station" (1000E, 1000N) and B "backsight" (594.22E, 877.68N) are available within the area. Indicate the procedure to satisfy the orientation and calculate the required total station reading towards B.

  What is the range of water contents of the in-situ soil

The specifications for a project specify that the in-situ soil must be compacted to 98% of its maximum Modified Proctor Density. What is the range of water contents of the in-situ soil that will meet this criteria

  How does a heavy truck parked on a prestressed bridge girder

According to the design philosophy in the AASHTO Specifications, how does a heavy truck parked on a prestressed bridge girder effect the nominal shear resistance of the girder?

  What is the value of the magnetic field at a distance

A solid cylindrical conductor is supported by insulating disks on the axis of a conducting tube with outer radius R_a = 5.75cm and inner radius R_b = 5.05cm . The central conductor and the conducting tube carry equal currents of

  Estimate the cost of a similar ethanol unit with a capacity

The cost of a 100,000 bbl/d ethanol unit is $40,000,000. From historical records, the capacity exponent ratio for CCR is 0.75. Estimate the cost of a similar ethanol unit with a capacity of 135,000 bbl/d.

  Find waters carbonate hardness and noncarbonated hardness

A municipality uses green energy and treats 15 × 106 gal/day of a groundwater containing the following: CO2 = 17.6 mg/L, Ca2+ = 80 mg/L, Mg2+ = 48.8 mg/L, Na+ = 23 mg/L, Alk(HCO3-) = 270 mg/L as CaCO3, SO42- = 125 mg/L, Cl- = 35 mg/L.

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