What distance will the concentration of the metals be

Assignment Help Civil Engineering
Reference no: EM13559088

Another way to treat acid mine drainage is to add limestone at the beginning of a narrow AMD stream to precipitate the metals. The first order rate constant is 10/day. Assume the stream is 3ft wide and 1ft deep (assume a rectangular cross section. If the flow throught the stream is 1000 gallons/day and the concentration at the beginning of the stream is 250 ppm, at what distance will the concentration of the metals be 5 ppm

Reference no: EM13559088

Questions Cloud

What is the doppler shift in the frequency heard : A state trooper chases a speeder along a straight stretch of road;both vehicles move at 160 km/h. What is the Doppler shift in the frequency heard by the speeder
Calculate the euler buckling load for a mild steel rod of : Calculate the Euler buckling load for a mild steel rod of length 5m and diameter 25mm when pinned at each end and axially loaded. If this rod is to be used again with an initially straight axis, determine the maximum permissible
The planning process for the upcoming holiday season : The planning process for the upcoming holiday season?
Types of structures that can be analysed using the package : Search the web or visit a local drawing office to find a commercially available structural analysis package (or one that you are already familiar with). Describe, using your own words, the following features of the package:
What distance will the concentration of the metals be : Another way to treat acid mine drainage is to add limestone at the beginning of a narrow AMD stream to precipitate the metals. The first order rate constant is 10/day. Assume the stream is 3ft wide and 1ft deep
Design a hardwood beam to support a uniformly distributed : Design a hardwood beam to support a uniformly distributed load of 20 kN over a simply supported span of 8 m. consider bending strength only. Assume that the weight of the beam is 2 kN.
S-p-o model of healthcare quality : S-P-O Model of Healthcare Quality
Determine the present worth after taxes : Inital Cost=$40,000, Estimated Salvage Value (@ year 5)=18,000, Actual Salvage Value (@ yr.5)=20,000, Depreciation: Straight-Line (No half -year convention), Life=5yrs, Annual Benefit=10,000, and tax rate=34%.
Does pay motivate employees : Does pay motivate employees? Why or why not?

Reviews

Write a Review

 

Civil Engineering Questions & Answers

  Round up yellow and all-red times to the nearest ½ second

Determine the appropriate yellow and all-red interval to use for each phase. Assume a 10 ft/sec2 deceleration rate, a one second reaction time, and a 20 ft. vehicle length. Round up yellow and all-red times to the nearest ½ second.

  Calculate actual cost-earned value and planned value

he project duration is planned for 20 weeks. The project budget is $40,000 and is planned to be spent on a level bases through out the project. You are at the end of week 10, the accounting department tells you the project has spent $19,500

  Determine the components of the reaction at point c

The object ABC consists of two slender rods welded together at point B. Rod AB has a mass of 1 kg and bar BC has a mass of 2 kg. Knowing the magnitude of the angular velocity of ABC is 10 rad/s when thetha is zero.

  What is the average force on the rope during the tow

The 5.5 Mg humpback whale is stuck on the shore due to changes in the tide. In an effort to rescue the whale, a 12-Mg tugboat is used to pull it free using an inextensible rope tied to its tail.

  Find reynolds number for the motion of baseball through air

(a) Find the Reynolds number for the motion of this baseball through air. (b) Determine the drag force on the baseball under these conditions in N.

  Design hardwood beam to support a uniformly distributed load

Design a hardwood beam to support a uniformly distributed load of 20 kN over a simply supported span of 8 m. consider bending strength only. Assume that the weight of the beam is 2 kN.

  Calculate the density of air flow ate sections 1 and 2

Air flows steadily between two sections in a long, straight portion of 4 in. inside diameter pipe (D1=D2). The uniformly distributed temperature and pressure at each section are p1=100psia, p2=18.4psia, T1=540 R and T2=453 R.

  Determine how many candy bars she needs to take with

A 68 kg woman is planning to bicycle for an hour. If she is to meet her entire energy needs while bicycling by eating 30 g chocolate candy bars, determine how many candy bars she needs to take with her

  Compare the reactor volume required for removal of substance

Complete mixed system that contains a single reactor against a system that contains three Complete Mixed reactors of equal volume in series. (total volume of three reactors should be equal to the single reactor)

  Find solution of bvp and equation which defines critical l

A uniform thin column of length L, positioned vertically with one end embedded in the ground, will deflect, or bend away,from the vertical under the influence of its own weight

  Compute required weight of coarse aggregate per cubic yard

A concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard.

  Determine horizontal distance ab and elevation of point a

The height of the instrument during this measurement was 1.60m From the same setup from point A, the zenith angle and slope distance toward point B are measured as 83deg 32'30" and 186.23m respectively, while the elevation of point B is 315.34m AM..

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