Title: Fluorescent Tagged Polymers in Water Treatment Applications
Klin A. Rodrigues
There is a need to detect and monitor the amount of polymer in water treatment systems. These polymers provide deposit control for various scales such as calcium carbonate and calcium phosphate as well as dispersancy. Fluorescent tagged polymers allow the water treater to monitor the amount of active or “free polymer” in the system. There are two patent pending commercially available tagged polymer technologies. The first class of fluorescent tagged polymers uses the same fluorescent probe as PTSA (1,3,6,8-pyrenesulfonic acid tetrasodium salt). Essentially the formulator replaces PTSA and non-tagged polymer with tagged polymer in the formulation and only this tagged polymer is monitored. The second class of fluorescent tagged polymers has a fluorescent monomer that is very different from PTSA and absorbs and emits at a different wavelength than PTSA. Both PTSA and this tagged polymer will be monitored using two different detectors. The details of how these two technologies can be used in the field will be discussed in this paper.
Klin has a Bachelor’s degree in Chemical Engineering from the Indian Institute of Technology, a Master's degree in Chemical Engineering and a Ph.D in Polymer Science from the University of Akron. Klin worked for Halliburton and Great Lakes Chemicals. Klin has been with Alco Chemical/Akzo Nobel/Nouryon for over 25 years. Klin is a Manager of the Polymer Product Chemistry group at Nouryon and an expert in the water soluble and dispersible polymers. He has applications expertise and commercial products in water treatment, detergent, textiles, construction, personal care, Agro, oilfield, electronics and a variety of other fields. He is the author of over 25 technical publications and has over 75 US patents.