87-10: A Molybdate Update Effective, Economical Programs Cooling Tower Water Blowdown Treatment

87-10: A Molybdate Update Effective, Economical Programs Cooling Tower Water Blowdown TreatmentReviews the improvements made in treatment programs using molybdate as the basis for inhibition. Additions of organic additives such as Diols have made these programs equal in effectiveness to the classic chromate programs without sacrificing cost. The paper includes a discussion on development of the molybdate diol organic program and includes case history examples of application of these programs.

Generalized models are discussed as well as the development of models for a specific water source or blend based upon field and/or laboratory testing

heat has been dissipated primarily by once-through water from natural lakes and rivers

The new program has a wide application range for calcium (15 to 1000 ppm as CaCO3) and pH (7

We also expand upon the best practices for remediation

piping and tubing

This paper provides the results of these audits to date

Frequent questions include: What test methods should be used to develop scale inhibitor performance data

The aim of this report is to bring to light the serious problems confronting the users of cooling towers and to describe accepted and proven methods of coping with these problems

but also for safety and structural integrity

important for high-density urban environments

methods of detection prior to event

based on surface absorption of so called "molybdo-phillic" entities