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TECHNICAL SUPPORT, continued
Water/Wastewater Treatment
“Backwash Turbidimeter Lowers Operating Costs”. By Josephine W.
Boyd. Reprinted from Opflow, Vol. 11, No. 3, March 1985.
Describes how the use of a backwash turbidimeter results in a significant
drop in consumption of both finished water and power. This instrument
is easier to use and more reliable than attempting to control the process
by visual measurement.
“Get More Information from Water Analysis”. By Don Hartman.
Reprinted from Water Conditioning & Purification Magazine,
September, 1988.
Discusses the most common inorganic tests that can be done by a
layman in the field or at a small, in-store laboratory. Some data
manipulation techniques are offered that add more value to the collected
data.
“Low-cost Lab Work”. By J.W. Boyd and T.W. Farrill. Reprinted from
Operations Forum, December, 1986.
Plant operators are discovering colorimetric test methods for metal ions
offer a way to comply with the U. S. Environmental Protection Agency’s
pretreatment and National Pollution Discharge Elimination System
testing requirements and still stay within budget.
“Weigh the Advantages of Hach’s Prepared Reagents”. Compares the
cost of using reagents prepared by a manufacturer to the cost of using
do-it-yourself reagents for chlorine analysis.
“Water Hardness Above 2 ppm Alerted by Hardness Monitor”. By Ken
Wilson and Dr. Samuel Lee. Reprinted from Chemical Processing,
September, 1985.
Regeneration of zeolite beds used in softening water has been cut by
two-thirds by the use of hardness monitors.
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