The International Desalination Association Journal recently featured an article by French Creek Software titled “Modeling Scale Formation and Optimizing Scale Inhibitor Dosages“. This paper and many more are available in the Online Library.
Abstract | Click for Information on Subscribing to the IDA Journal »
Because of its reliance on simple indices for scale prediction, inhibitor selection, and dosage estimation, water chemistry design and treatment software currently used for membrane systems is not always adequate for the rigors of high-recovery systems. This article discusses applying an industry-standard ion association model calculation engine to predict scale in membrane systems and optimize control. The ion association model engine calculates the most likely distribution of species for a brine and uses free ion concentrations to calculate the driving scale force for minerals such as calcite, gypsum, barite, celestite, and silica, as well as calcium phosphate-based scales. Models for optimizing scale-inhibitor dosages are also described. The article draws on the concept of induction time as a basis for the mathematical models used to develop predictive models from actual data. The models are commercially available inhibitors that have been used successfully to select treatments and optimize dosages in reverse osmosis systems, cooling water, and oil-field applications.
About the International Desalination Association | Learn More about the IDA »
“The IDA is the leading global organization dedicated to desalination, desalination technology and water reuse. The hub of expertise, news and information, and professional development for the worldwide desalination industry, IDA serves more than 2,400 core members from 60 countries and reaches an additinal 4,000 members from its worldwide network of Affiliate organizations.”
“The IDA is committed to development and promotion of the appropriate use of desalination and desalination technology globally in water supply, water reuse, water pollution control, water purification, water treatment and other water sciences and technology. An NGO of the United Nations, IDA carries out this mission by encouraging research, promoting and exchanging communication, disseminating information, and supporting education in the field of desalination and water sciences.”
About the IDA Journal
“Co-published quarterly by the International Desalination Association (IDA) and the American Water Works Association, IDA Journal on Desalination and Water Reuse focuses on the technical aspects of desalination, one of the world’s fastest-growing water resource technologies. The journal presents the industry with technical literature of the highest caliber, authored by leaders in desalination research and technology and peer-reviewed by top industry professionals and scientists to ensure all content has passed rigorous scrutiny.”