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PWR Dispersant Review & Update, OptiSperse PWR6600 by Anthony Rossi, GE
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.
Revision Date: 10/27/2010
Tags: 221113 - Nuclear Electric Power Generation * , GE, Corrosion Inhibitor, Dispersant
Nuclear Power Plant Water Treatment by Timothy Rittof, Veolia Water - Hot Topic Hour July 1, 2010
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.
Revision Date: 10/27/2010
Tags: 221113 - Nuclear Electric Power Generation * , Veolia Water, Clarifier, Filter, Softener, Water Treatment
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.
Revision Date: 10/27/2010
Tags: 221113 - Nuclear Electric Power Generation * , Dow Water & Process Solutions, Tubular UF Membrane, EDI
Nuclear Power Plant Water Treatment Webinar - Hot Topic Hour July 1, 2010
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: ‘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. • 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. • 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.
Revision Date: 10/26/2010
Tags: 221113 - Nuclear Electric Power Generation * , GE Water, Dow Water & Process Solutions, Veolia Water, Clarifier, Dispersant, Ultrafiltration, EDI, Corrosion Inhibitor, Filter, Ultrapure Water