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Research and development on treatment of liquid radioactive wastes in Thailand

Abstract

The studies have been directed towards treatment technologies for low level waste. The simple physico-chemical method has been studied for applying to various kinds of waste streams such as reactor waste, isotope production waste and liquid waste from the hospitals. The characterization of inorganic ion exchangers including the effect of pH, equilibrium time, temperature and concentration of such exchangers were tested. The results revealed that the local simple brand-washed detergents, which are very cheap, can be successfully used for decontamination instead of a more expensive imported decontaminating agent. It was also revealed that chemical precipitation can be successfully used for the treatment of such wastes. In considering an immobilization process for the treated waste, cementation was selected. The basic properties of the cemented waste forms have been investigated including leachability of the cemented sludge resulted from the chemical precipitation of the decontamination waste. The results revealed that the cemented inorganic ion exchangers and the sludge waste exhibit high compressive strength and low leach rates. The compressive strength of 118-207 kg/cm{sup 2} and 15% and 20% waste loading was found to be optimum for the waste forms. A cumulative fraction leached rate from the cemented sludge was found to be about  More>>
Authors:
Yamkate, P; Sinakhom, F; Punnachaiya, M; Ya-anan, N; Srisorn, S [1] 
  1. Office of Atomic Energy for Peace, Bangkok (Thailand). Waste Management Div.
Publication Date:
Feb 01, 1997
Product Type:
Technical Report
Report Number:
IAEA-TECDOC-929
Reference Number:
SCA: 052001; PA: AIX-28:034840; EDB-97:060107; SN: 97001775328
Resource Relation:
Other Information: PBD: Feb 1997; Related Information: Is Part Of Treatment technologies for low and intermediate level waste from nuclear applications. Final report of a co-ordinated research programme 1991-1996; PB: 207 p.
Subject:
05 NUCLEAR FUELS; LOW-LEVEL RADIOACTIVE WASTES; INORGANIC ION EXCHANGERS; RADIOACTIVE WASTE PROCESSING; CESIUM 137; DECONTAMINATION; EXPERIMENTAL DATA; SOLIDIFICATION; TECHNETIUM 99
OSTI ID:
462478
Research Organizations:
International Atomic Energy Agency, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1011-4289; Other: ON: DE97622561; TRN: XA9743750034840
Availability:
INIS; OSTI as DE97622561
Submitting Site:
INIS
Size:
pp. 185-191
Announcement Date:

Citation Formats

Yamkate, P, Sinakhom, F, Punnachaiya, M, Ya-anan, N, and Srisorn, S. Research and development on treatment of liquid radioactive wastes in Thailand. IAEA: N. p., 1997. Web.
Yamkate, P, Sinakhom, F, Punnachaiya, M, Ya-anan, N, & Srisorn, S. Research and development on treatment of liquid radioactive wastes in Thailand. IAEA.
Yamkate, P, Sinakhom, F, Punnachaiya, M, Ya-anan, N, and Srisorn, S. 1997. "Research and development on treatment of liquid radioactive wastes in Thailand." IAEA.
@misc{etde_462478,
title = {Research and development on treatment of liquid radioactive wastes in Thailand}
author = {Yamkate, P, Sinakhom, F, Punnachaiya, M, Ya-anan, N, and Srisorn, S}
abstractNote = {The studies have been directed towards treatment technologies for low level waste. The simple physico-chemical method has been studied for applying to various kinds of waste streams such as reactor waste, isotope production waste and liquid waste from the hospitals. The characterization of inorganic ion exchangers including the effect of pH, equilibrium time, temperature and concentration of such exchangers were tested. The results revealed that the local simple brand-washed detergents, which are very cheap, can be successfully used for decontamination instead of a more expensive imported decontaminating agent. It was also revealed that chemical precipitation can be successfully used for the treatment of such wastes. In considering an immobilization process for the treated waste, cementation was selected. The basic properties of the cemented waste forms have been investigated including leachability of the cemented sludge resulted from the chemical precipitation of the decontamination waste. The results revealed that the cemented inorganic ion exchangers and the sludge waste exhibit high compressive strength and low leach rates. The compressive strength of 118-207 kg/cm{sup 2} and 15% and 20% waste loading was found to be optimum for the waste forms. A cumulative fraction leached rate from the cemented sludge was found to be about 30 x 10{sup -3} cm/day at 30 day leaching time. (author). 5 refs, 7 tabs.}
place = {IAEA}
year = {1997}
month = {Feb}
}