Informational Chart to use in determining the best purification method
PURIFICATION
METHODS
Cost for 1,000,000
gallons of water
DESCRIPTIONS
15 TO 20 MINUTES KILLS 99.9% OF ALL LIVING THINGS
BOILING
$5,000
DISTILLATION
$6,000
AND VAPORIZES MOST CHEMICALS
BOILS AND RECONDENSES WATER, BUT MANY CHEMICALS
VAPORIZE AND RECONDENSEIN THE OUTOUT WATER.
IT IS ALSO EXPENSIVE TO BOIL AND COOL
ULTRAVIOLET
A GOOD BACTEICIDE, BUT HAS NO RESIDUAL KILL AND
WORKS ONLY IN CLEARLY FILTERED WATER.
LIGHT
$6,000
STILL IN ITS INFANCY STAGE
IT IS COMMON, CHEAP, BUT EXTREMELY COSTLY. IT DOES NOT
DECREASE PHYSICAL OR CHEMICAL CONTAMINATION, IT DOES
CHLORINE
FILTRATION
$4,000
INCREASE COLESTEROL FORMATIONS AND CAUSE HEART ATTACKS
$5,000
WATER FILTRATIONIS A GENERAL TERM THAT REFERS
TO ANY TYPE OF FILTRATION SYSTEM OR PROCESS
THAT
IS USED TO FILTER OUT PARTICLES AND OR POLLUTANTS FROM
WATER
GRAVITATIONALLY SETTLES HEAVY SUSPENDED
MATERIAL,
THE PROCESS OF DEPOSITION OF A SOLID
SEDIMENTATION
$3,000
MATERIAL FROM A STATE OF SUSPENSION OR SOLUTION
IN A FLUID