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1.发明授权System and method for removing contaminants from solid surfaces and decontaminating waste 失效从固体表面去除污染物和净化废物的系统和方法
公开(公告)号：US5457261A
公开(公告)日：1995-10-10
申请号：US272054
申请日：1994-07-08
CPC分类号： G21F9/005 , B24C1/003 , B24C9/006 , Y02P70/179
摘要： A method and system for removing a surface layer contaminated with radioactive and/or hazardous material and subsequently treating the waste to remove contaminants and provide an essentially contaminant-free final effluent. The contaminated material is removed by blasting the surface with a pressurized stream of air and sodium bicarbonate abrasive media, and the media is dissolved in water subsequent to the blasing operation. The resulting waste is treated in a sequence of steps including adjustment of pH, aeration and separation into primarily solid and liquid phases by precipitation of solids, which are removed for appropriate disposal. The primarily liquid phase is successively passed through a particle filter, a granulated activated carbon filter and a polishing unit to produce the clean final effluent.
摘要翻译： 一种用于去除被放射性和/或有害物质污染的表面层的方法和系统，并随后处理废物以除去污染物并提供基本无污染的最终流出物。 通过用加压的空气和碳酸氢钠研磨介质流喷射表面来除去受污染的材料，并且在该布置操作之后将介质溶解在水中。 所得废物按照一系列步骤进行处理，包括调整pH值，通气并通过沉淀固体分离成主要固相和液相，将其除去以进行适当的处置。 主要液相依次通过颗粒过滤器，颗粒活性炭过滤器和抛光单元，以产生清洁的最终流出物。
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2.发明授权System and method of removing contaminants from solid surfaces and decontaminating waste 失效从固体表面去除污染物和净化废物的系统和方法
公开(公告)号：US5520571A
公开(公告)日：1996-05-28
申请号：US386101
申请日：1995-02-09
CPC分类号： G21F9/005 , B24C1/003 , B24C9/006 , Y02P70/179
摘要： A method and system for removing a surface layer contaminated with radioactive and/or hazardous material and subsequently treating the waste to remove contaminants and provide an essentially contaminant-free final effluent. The contaminated material is removed by blasting the surface with a pressurized stream of air and sodium bicarbonate abrasive media, and the media is dissolved in water subsequent to the blasing operation. The resulting waste is treated in a sequence of steps including adjustment of pH, aeration and separation into primarily solid and liquid phases by precipitation of solids, which are removed for appropriate disposal. The primarily liquid phase is successively passed through a particle filter, a granulated activated carbon filter and a polishing unit to produce the clean final effluent.
摘要翻译： 一种用于去除被放射性和/或有害物质污染的表面层的方法和系统，并随后处理废物以除去污染物并提供基本无污染的最终流出物。 通过用加压的空气和碳酸氢钠研磨介质流喷射表面来除去受污染的材料，并且在该布置操作之后将介质溶解在水中。 所得废物按照一系列步骤进行处理，包括调整pH值，通气并通过沉淀固体分离成主要固相和液相，将其除去以进行适当的处置。 主要液相依次通过颗粒过滤器，颗粒活性炭过滤器和抛光单元，以产生清洁的最终流出物。
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