A groundwater supply has the following analysis: Ca2+ = 94 mg/l HCO3- = 317 mg/l Mg2+...

90.2K

Verified Solution

Question

Civil Engineering

A groundwater supply has the following analysis: Ca2+ = 94 mg/lHCO3- = 317 mg/l Mg2+ = 24 mg/l SO42- = 67 mg/l Na+ = 14 mg/l C1- =24 mg/l Calculate the quantities of lime and soda ash forexcess-lime softening, and the carbon dioxide reacted forneutralization by two-stage recarbonation. Assume that thepractical limits of hardness removal for calcium are 30 mg/1 asCaCO3 and for magnesium are 10 mg/1 as CaCO3 and thatthree-quarters of the final alkalinity is converted to bicarbonate.Calculate the finished hardness and sketch the bar graphs for theraw and finished waters.

Answer & Explanation Solved by verified expert
4.3 Ratings (559 Votes)
SolutionGiven 94 mgL 317 mgL 24 mgL 67 mgL 14 mgL 24 mgLTotal Hardness as    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students