Erosion in mines can lead to acidic run off, contributing to deterioration and extirpation of aquatic life in near by streams and oceans. One treatment of acid mine drainage is the addition of organic ash. The higher the concentration of ash, a, the higher the pH, P, (less acidic) as given in the equation and plot below. (See attached image for graph) P (a) = 7 log(a + 4) A. What is the base of the logarithm in equation (2)? B. You want your stream to have a pH of 6.8 how much ash do you have to add (in grams per liter g/L)? Show all work

Erosion in mines can lead to acidic run off, contributing to deterioration and extirpation of aquatic life in near by streams and oceans. One treatment of acid mine drainage is the addition of organic ash. The higher the concentration of ash, a, the higher the pH, P, (less acidic) as given in the equation and plot below. (See attached image for graph) P (a) = 7 log(a + 4) A. What is the base of the logarithm in equation (2)? B. You want your stream to have a pH of 6.8 how much ash do you have to add (in grams per liter g/L)? Show all work

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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