American Water Chemicals, Inc.

Conference Papers

THE PERILS OF USING CHLORAMINES FOR PRETREATMENT...

Calcium carbonate (CaCO3) is the most frequently encountered scale in industrial reverse osmosis (RO) systems. The Langelier Saturation Index (LSI)...

A Novel Calcium Carbonate Scaling Model For...

Calcium carbonate (CaCO3) is the most frequently encountered scale in industrial reverse osmosis (RO) systems. The Langelier Saturation Index (LSI)...

The Impact of Ferrous Ion Oxidation on Silica...

A 6 MGD reverse osmosis plant in South Texas that was using chlorine to oxidize arsenic for improved membrane rejection was experiencing severe...

Controlling Aluminum Silicate Formation in...

Silica scaling is very common in reverse osmosis systems that operate at high recoveries. Whenever silica fouling/scaling occurs, autopsy results...

An Evaluation of Corrosion Control Additives for...

Corrosion inhibitors are frequently used as post-treatment chemicals for potable RO plants around the country, but few are actually effective. In...

A Relationship Between Phosphate Scales and...

Precipitation of calcium phosphate scale on RO membranes continues to be a major challenge for wastewater recycling facilities. In most cases,...

Excessive Sulfuric Acid Dosing Resulting in...

Many consultants in the RO water treatment industry recommend sulfuric acid dosing into the feed water as a safety measure. This case study reviews a...

Optimizing Scale Inhibition Costs in Reverse...

Over the last few decades, advancements in technology and engineering design have allowed for the construction of reverse osmosis (RO) plants with...

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