Update-processing steam generator cleaning solvent at Palo Verde
- Framatome Technologies, Inc., Lynchburg, VA (United States)
Framatome Technologies Inc.(FTI) recently completed the steam generator chemical cleanings at the Palo Verde Nuclear Generating Station Units 1, 2 and 3. Over 500,000 gallons of low-level radioactive solvents were generated during these cleanings and were processed on-site. Chemical cleaning solutions containing high concentrations of organic chelating wastes are difficult to reduce in volume using standard technologies. The process that was ultimately used at Palo Verde involved three distinct processing steps: The evaporation step was conducted using FTI`s submerged combustion evaporator (SCE) that has also been successfully used at Arkansas Nuclear One - Unit 1, Three Mile Island - Unit 1, and Oconee on similar waste. The polishing step of the distillate used ultrafiltration (UF) and reverse osmosis (RO) technology that was also used extensively by Ontario Hydro to assist in their processing of chemical cleaning solvent. This technology, equipment, and operations personnel were provided by Zenon Environmental, Inc. The concentrate from the evaporator was absorbed with a special {open_quotes}peat moss{close_quotes} based media that allowed it to be shipped and buried at the Environcare of Utah facility. This is the first time that this absorption media or burial site has been used for chemical cleaning solvent.
- Research Organization:
- Electric Power Research Inst. (EPRI), Palo Alto, CA (United States); Williams (Paul) and Associates, Medina, OH (United States)
- OSTI ID:
- 437480
- Report Number(s):
- EPRI-TR-106929; CONF-960783-; TRN: 97:000678-0016
- Resource Relation:
- Conference: International low-level-waste conference, New Orleans, LA (United States), 22-24 Jul 1996; Other Information: PBD: Oct 1996; Related Information: Is Part Of Proceedings: 1996 EPRI international low level waste conference; PB: 715 p.
- Country of Publication:
- United States
- Language:
- English
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