Page 673 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

Appendix 621

A-30.
Grains Per U.S. Gallons-
Pounds Per 1000 Gallons

A. To convert grains per U.S. gal-
lons to pounds per moo gallons
multiply by the factor 0.143.
B. To convert pounds per I ooo gal-
Ions to grains per U.S. gallons
multiply by the factor 7.0.
Exam pie:
1. 4-5 grains/U. S. gallon X 0.143 = o.644 lbs./1000 gals.
2. 0.5 lbs./1000 gallons X 7.0 = 3.5 gr.iins/U. S. gal.

A-31.
Parts Per Million-
Pounds Per 1000 Gallons

A. To convert puts per million to
pounds per IOOO gallons divide
by the factor 120.
B. To convert pounds per IOOO gal-
lons to parts per million multi-
ply by the factor 120.
Example:
r , 39 parts/million
= o. 325 lhs./ 1 ooo ga Is.
120 ·
2. 0.167 lhs.z'rooo gals. X 120 = 20 parts/million

A-32.
Coagulant, Acid, and Sulfate- I ppm Equivalents

ppm
I Ppm. pprn SOJ us CaC01 ppm ppm ppm
1 Ppm FQTnrnl11 nf Alkalinity Increase Na2S01 CO, Total Solids
t,..:amP nr ("hf"mic'al Chomh-al Roduct.ion Increase Increase Increeaa

Filtrr Alum Ah(S0,)1 · J8lh0 0.4:i 0.4� 0.61 0.40 l 0.16
Ammunia Alum Ali(SO,)I · (:\'"II ,)1S01 · 241ll0 0.31 O.H 0.63 0.29 0.27
Potash Alum Ah(SO,)I · K1�0, · :!'11110 0.32 0.43 0.60 0.28 0.30
c:opprra1 (fprr,11.U sulfate) F('.SO, · 71110 0.36 0.36 0.61 0.31 0.13
Chlorine t ed Coppr-r as FeSO, · 7H,O+ (},C:1,) 0.54 0.36 0.61 0.48 0.18
Fer ric Su[fatr (lOO,..� J-'P•(S0,)1) F(',{�0.)1 0.75 0.76 1.07 0.66 0.27
Sulfuric J\dd-!)�% 111.SO, LOO LOO 1.42 0.88 0.36
SuHuric Al'iri-!13.2';, (66° Df?) n.so, 0.95 0.95 L35 O.Rt 0.34
Sultur!c Ar-id -77. 7S� (60° DP) n-so, 0.79 0.79 l.13 0.70 0.28
Salr f"11.k"- 9f,'::'"; Na,�n. 0.66 0.95 1.00
��-��������-'-��������� ...... ����'--���-'-���---''--���'--����
By permission, The Permutit Co., Inc., Data Book, J 953.