Conversion of caco3 equivalent, Chemistry

Q. A sample of water analysis was found to contain temporary magnesium hardness 25 mg/L. Permanent magnesium chloride hardness 15 mg/L and permanent calcium sulphate hardness 20 mg/L, SiO2  = 30kg/L. Calculate the lime and soda required for softening 30,000 litters hard water.

Ans.

Conversion of CaCO3 equivalent

constituent

amount

Multiplication factor

CaCO3 equivalent

Mg(HCO3)2

25 mg/L

100/146

25*100/146=17.12 mg/L

MgCl2

15mg/L

100/95

15*100/95=15.72mg/L

CaSo4

20mg/L

100/136

20*100/136=14.7mg/L

 

 

 

 

SiO2 do not required Lime soda.

Lime required = 74/100(Temp. hardness + Perm. Hardness) = 74/100(17.12 + 15.12) = 24.30 mg/L

Lime required for 30000 Litre hard water = 24.30*30000 = 729 mg

Soda required = 106/100(perm. Ca hardness + perm. Mg hardness) = 106/100(15.72 + 14.70) = 32.24 mg/l

Soda required for 30000 litre hard water = 32.24 mg/λ*30000λ = 967.2 mg

Posted Date: 7/21/2012 7:09:27 AM | Location : United States







Related Discussions:- Conversion of caco3 equivalent, Assignment Help, Ask Question on Conversion of caco3 equivalent, Get Answer, Expert's Help, Conversion of caco3 equivalent Discussions

Write discussion on Conversion of caco3 equivalent
Your posts are moderated
Related Questions
Explain about the Intrinsic breakdown: It's because of the excitation of electrons into the conduction band across  the  energy  gap  under  the  condition  of  excessive  volt

Simple crystallisation - Purification of organic compounds This is the most general technique used to purify organic solids. It is associated with the concept that whenever


Explain trend in variation of the atomic size properties from Boron and Thallium

Which of the following compounds is ionic: (1)  Kl        (2) CH 4                                    (3) Diamond           (4) H 2 Ans:   Kl

Antiseptics doesn''t harm living cells whereas disinfectants harm living cells.and disinfectants are used to sterilize instruments and utensils but cant be used on skin....and  the


which element have highest oxidation number and why?

Write a feature which will distinguish a metallic solid from an ionic solid. a) Explain 'order of a reaction'. b) What is an emulsion?

What is inductomeric effect with example and what is difference between inductive and inductomeric effect