Chemical Feed FIELD GUIDE FOR TREATMENT PLANT OPERATORS

Chemical Feed Guide for Treatment Plant Operators presents the main steps for proper chemical handling, including:

• Chemical selection and dosage
• Purchasing specifications
• Quality screening prior to unloading from vendor
• Storage considerations to ensure chemical stability

Guidelines for more than 50 chemicals commonly used in water treatment have been included in the compact guide, including:

• Coagulants (aluminum sulfate, ferric sulfate, polyaluminum chloride,
• Disinfection Chemicals (chlorine, chlorine dioxide, ozone, ammonia)
• Dechlorination Chemicals (ascorbic acid, sulfur dioxide)
• Fluoridation (calcium fluoride, sodium fluoride)
• Water softeners (soda ash, quicklime)
• Corrosion Control (caustic soda, sodium polyphosphate, carbon dioxide)
• Taste and Odor Control (granular activated carbon, potassium permanganate)

This pocket field guide, like other books in the AWWA series, provides the information needed to get the job done. Useful tables and easy-to-follow illustrations are at your fingertips. You’ll find “Ops Tips” to help with important points and “Table Tamers” to assist with understanding some of the more complicated tables. “Calculators” throughout the guide offer easy-to-use, plug-in-the-numbers equations and examples for quick results.

Contents

1. Chemical Feed Quality Control
2. Chemical Feed—Common System Components
3. Chemical Feed of Gases—Equipment and Systems
4. Chemical Feed of Gases—Calculations and Examples
5. Dry Chemical Feeders and Systems
6. Dry Chemical Feed—Calculations and Examples
7. Liquid Chemical Feed Equipment and Systems
8. Liquid Chemical Feed—Calculations and Examples