Abstract
Full text: During decontamination works of the fueling machine of Atucha I nuclear power plant (AINPP), a liquid waste with special characteristics was generated, which needed the development of a treatment method. The waste consisted of an emulsion designed for the cleaning of mechanical components and was formed by an organic solvent dispersed in water with aid of an emulsifier additive. After several cleaning operations, the emulsion contained an important quantity of lubricants and radioactive dirt. The treatment had the objective of recycling a toxic waste such as the organic solvent and reducing the volume of the residual mass. Laboratory tests were made tending to the emulsion separation in their components. Ionic force and ionic mobility were modified for join the emulsion micelles and produce their coalescence. Different salts and working temperatures were tried and it was stated that the combination of 1% of Na{sub 2}SO{sub 4} added and 40 degree C temperature were the optimum taking into account the available equipment in AINPP and cost considerations. The process was carried out in batch mode and 3 residual streams were obtained, an aqueous one which was sent to Residual Water System of AINPP, an organic liquid consisting of decontaminated hydrocarbons,
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Citation Formats
Varani, J L, and Comandu, J F.
Mixed wastes treatment in Atucha I; Tratamiento de residuos mixtos de la CNA I (central nuclear Atucha I).
Argentina: N. p.,
1998.
Web.
Varani, J L, & Comandu, J F.
Mixed wastes treatment in Atucha I; Tratamiento de residuos mixtos de la CNA I (central nuclear Atucha I).
Argentina.
Varani, J L, and Comandu, J F.
1998.
"Mixed wastes treatment in Atucha I; Tratamiento de residuos mixtos de la CNA I (central nuclear Atucha I)."
Argentina.
@misc{etde_20019927,
title = {Mixed wastes treatment in Atucha I; Tratamiento de residuos mixtos de la CNA I (central nuclear Atucha I)}
author = {Varani, J L, and Comandu, J F}
abstractNote = {Full text: During decontamination works of the fueling machine of Atucha I nuclear power plant (AINPP), a liquid waste with special characteristics was generated, which needed the development of a treatment method. The waste consisted of an emulsion designed for the cleaning of mechanical components and was formed by an organic solvent dispersed in water with aid of an emulsifier additive. After several cleaning operations, the emulsion contained an important quantity of lubricants and radioactive dirt. The treatment had the objective of recycling a toxic waste such as the organic solvent and reducing the volume of the residual mass. Laboratory tests were made tending to the emulsion separation in their components. Ionic force and ionic mobility were modified for join the emulsion micelles and produce their coalescence. Different salts and working temperatures were tried and it was stated that the combination of 1% of Na{sub 2}SO{sub 4} added and 40 degree C temperature were the optimum taking into account the available equipment in AINPP and cost considerations. The process was carried out in batch mode and 3 residual streams were obtained, an aqueous one which was sent to Residual Water System of AINPP, an organic liquid consisting of decontaminated hydrocarbons, useful for other cleaning tasks and finally a solid one, sited in the in-between interface of the other two liquids, consisting of insoluble soaps used as lubricant thickness, containing the principal proportion of radioactivity. As a result of this process we have achieved a volume reduction higher than 90%, the recycling of the organic solvent and concentration of radioactivity in a solid greasy mass with low water solubility. (author) [Spanish] Texto completo: Como resultado de tareas de descontaminacion de la maquina de carga de la central nuclear Atucha I (CNAI) se genero un residuo liquido de caracteristicas especiales, que requirio el desarrollo de un metodo de tratamiento. El residuo consistia en una emulsion de limpieza mecanica y lubricantes provenientes de la limpieza de la maquina, portadores de la contaminacion radiactiva. El tratamiento de esta emulsion tuvo como objeto el reciclado de un residuo toxico consistente en el solvente organico componente de la emulsion y la reduccion de volumen de la masa residual. Se realizaron pruebas de laboratorio tendientes a aumentar la fuerza ionica del medio para romper la emulsion. Se probaron distintas sales y temperaturas de trabajo hasta establecer que la combinacion del agregado del 1% de sulfato de sodio y una temperatura de 40 grados C era la optima teniendo en cuenta el equipamiento disponible en la instalacion nuclear y consideraciones de costos. El proceso se efectuo en modo batch y se obtuvieron 3 corrientes residuales, una acuosa que se envio al sistema de tratamiento de aguas residuales de la Central, una organica consistente en hidrocarburos descontaminados aptos para posteriores trabajos de limpieza y una solida con la mayoria de la contaminacion radiactiva, consistente en jabones insolubles que forman parte de las grasas lubricantes. Como resultado del proceso se logro una reduccion de volumen superior al 90% y la separacion del solvente apto para su reutilizacion. (autor)}
place = {Argentina}
year = {1998}
month = {Jul}
}
title = {Mixed wastes treatment in Atucha I; Tratamiento de residuos mixtos de la CNA I (central nuclear Atucha I)}
author = {Varani, J L, and Comandu, J F}
abstractNote = {Full text: During decontamination works of the fueling machine of Atucha I nuclear power plant (AINPP), a liquid waste with special characteristics was generated, which needed the development of a treatment method. The waste consisted of an emulsion designed for the cleaning of mechanical components and was formed by an organic solvent dispersed in water with aid of an emulsifier additive. After several cleaning operations, the emulsion contained an important quantity of lubricants and radioactive dirt. The treatment had the objective of recycling a toxic waste such as the organic solvent and reducing the volume of the residual mass. Laboratory tests were made tending to the emulsion separation in their components. Ionic force and ionic mobility were modified for join the emulsion micelles and produce their coalescence. Different salts and working temperatures were tried and it was stated that the combination of 1% of Na{sub 2}SO{sub 4} added and 40 degree C temperature were the optimum taking into account the available equipment in AINPP and cost considerations. The process was carried out in batch mode and 3 residual streams were obtained, an aqueous one which was sent to Residual Water System of AINPP, an organic liquid consisting of decontaminated hydrocarbons, useful for other cleaning tasks and finally a solid one, sited in the in-between interface of the other two liquids, consisting of insoluble soaps used as lubricant thickness, containing the principal proportion of radioactivity. As a result of this process we have achieved a volume reduction higher than 90%, the recycling of the organic solvent and concentration of radioactivity in a solid greasy mass with low water solubility. (author) [Spanish] Texto completo: Como resultado de tareas de descontaminacion de la maquina de carga de la central nuclear Atucha I (CNAI) se genero un residuo liquido de caracteristicas especiales, que requirio el desarrollo de un metodo de tratamiento. El residuo consistia en una emulsion de limpieza mecanica y lubricantes provenientes de la limpieza de la maquina, portadores de la contaminacion radiactiva. El tratamiento de esta emulsion tuvo como objeto el reciclado de un residuo toxico consistente en el solvente organico componente de la emulsion y la reduccion de volumen de la masa residual. Se realizaron pruebas de laboratorio tendientes a aumentar la fuerza ionica del medio para romper la emulsion. Se probaron distintas sales y temperaturas de trabajo hasta establecer que la combinacion del agregado del 1% de sulfato de sodio y una temperatura de 40 grados C era la optima teniendo en cuenta el equipamiento disponible en la instalacion nuclear y consideraciones de costos. El proceso se efectuo en modo batch y se obtuvieron 3 corrientes residuales, una acuosa que se envio al sistema de tratamiento de aguas residuales de la Central, una organica consistente en hidrocarburos descontaminados aptos para posteriores trabajos de limpieza y una solida con la mayoria de la contaminacion radiactiva, consistente en jabones insolubles que forman parte de las grasas lubricantes. Como resultado del proceso se logro una reduccion de volumen superior al 90% y la separacion del solvente apto para su reutilizacion. (autor)}
place = {Argentina}
year = {1998}
month = {Jul}
}