Particulate generation and control in the PREPP (Process Experimental Pilot Plant) incinerator
Particulate emissions in radioactive incineration systems using a wet scrubbing system are generally ultimately controlled by flowing the process offgas stream through a high-efficiency filter, such as a High Efficient Particulate Air (HEPA) filter. Because HEPA filters are capable of reducing particulate emissions over an order of magnitude below regulatory limits, they consequently are vulnerable to high loading rates. This becomes a serious handicap in radioactive systems when filter change-out is required at an unacceptably high rate. The Process Experimental Pilot Plant (PREPP) incineration system is designed for processing retrieved low level mixed hazardous waste. It has a wet offgas treatment system consisting of a Quencher, Venturi Scrubber, Entrainment Eliminator, Mist Eliminator, two stages of HEPA filters, and induced draft fans. During previous tests, it was noted that the offgas filters loaded with particulate at a rate requiring replacement as often as every four hours. During 1988, PREPP conducted a series of tests which included an investigation of the causes of heavy particulate accumulation on the offgas filters in relation to various operating parameters. This was done by measuring the particulate concentrations in the offgas system, primarily as a function of scrub solution salt concentration, waste feed rate, and offgas flow rate. 2 figs., 9 tabs.
- Research Organization:
- EG and G Idaho, Inc., Idaho Falls (USA)
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 6157961
- Report Number(s):
- EGG-M-88482; CONF-890521-3; ON: DE89011107
- Resource Relation:
- Conference: 8. international conference on thermal destruction of hazardous, radioactive, infectious and mixed wastes, Knoxville, TN, USA, 1 May 1989; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
LOW-LEVEL RADIOACTIVE WASTES
RADIOACTIVE WASTE PROCESSING
OFF-GAS SYSTEMS
OPTIMIZATION
PARTICULATES
FILTRATION
RADIOACTIVE EFFLUENTS
MINIMIZATION
COMBUSTION
FILTERS
INCINERATORS
RADIOACTIVE WASTE MANAGEMENT
CHEMICAL REACTIONS
MANAGEMENT
MATERIALS
OXIDATION
PARTICLES
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052001* - Nuclear Fuels- Waste Processing
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