Nuclear Power Plant Water Treatment was the July 1 Hot Topic Hour

Three industry experts provided presentations for the McIlvaine Hot Topic discussion on Nuclear Power Plant Water Treatment.

The first presentation was by Gregg Poppe of Dow Water & Process Solutions and titled ‘Reducing Chemicals and Waste with Advanced Water Purification Technology.’ This presentation addressed the three primary stages of effective water treatment including Pre-Treatment, Roughing, and Polishing. The importance of safe, reliable, efficient, and “green” environmentally sound practices was emphasized. Ultrafiltration using Dow tubular UF membranes was highlighted as an effective pre-treatment going into RO filtration. EDI was discussed as an effective polishing procedure that eliminates the need for chemical treatments. 

Gregg Poppe - Dow Water & Process Solutions - 07-01-10.pdf

The second presentation was by Timothy Rittof of Veolia Water Solutions and Technologies: ‘Nuclear Power Plant Water Treatment.’ This presentation discussed various clarification processes for non-process water including river water, reclaim (grey) water, and cooling tower blowdown water.  The Actiflow and Actisoft clarifiers and softeners were discussed, along with disc filters and CeraMem filters by Veolia.  Also discussed were energy recovery multi-effect-evaporators for the production of fresh water using waste heat from power plants. Veolia provides more than 40 years of experience in nuclear power plant water treatment.

Timothy Rittof - Veolia Water - 07-01-10.pdf

The third presentation was by Anthony Rossi of GE Water & Process Technologies: ‘PWR Dispersant Review & Update, OptiSperse PWR6600.’  This presentation addressed the dispersion of iron oxides in steam generator (SG) systems using the OptiSperse polyacrylate dispersant without any sulfates or chlorides. Testing showed very high dispersion activity with very low polyacrylate dosages. The effectiveness of the treatment at reducing corrosion and thermo-hydraulic instabilities was discussed. Advantages include improved long-term thermal performance of the SG, potential for long-term reduction in routine off-line cleaning frequency, and the long-term goal of a reduction in frequency or complete avoidance of full bundle SG chemical cleaning.

Anthony Rossi - GE Water and Process Technologies - 07-01-10.pdf

McIlvaine Company thanks each presenter for the professional and valuable contribution to this Hot Topic discussion.    

The BIOS, ABSTRACTS AND PHOTOS can be viewed as follows: BIOS, PHOTOS, ABSTRACTS - JULY 1, 2010.htm