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首页> 外文会议>Global Accomplishments in Environmental and Radioactive Waste Management: Cost Effectiveness, Risk Reduction and Technology Implementation >THE INTEGRATION OF A PROPOSED ZONE CLOSURE APPROACH FOR THEPLUTONIUM FINISHING PLANT (PFP) DECOMMISSIONING AND THE PFP ZONE,HANFORD SITE, WASHINGTON
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THE INTEGRATION OF A PROPOSED ZONE CLOSURE APPROACH FOR THEPLUTONIUM FINISHING PLANT (PFP) DECOMMISSIONING AND THE PFP ZONE,HANFORD SITE, WASHINGTON

机译：拟议的封闭区方案用于FOR整理厂（PFP）退役和PFP区，汉福德基地，华盛顿的整合

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The Plutonium Finishing Plant (PFP) and associated processing facilities are located in the 200rnarea of the Hanford Site in Eastern Washington. This area is part of what is now called thernCentral Plateau. In order to achieve closure of the contaminated facilities and waste sites atrnHanford on the Central Plateau (CP), a geographic re-districting of the area into zones has beenrnproposed in the recently published Plan for Central Plateau Closure[1]. One of the 22 zonesrnproposed in the Central Plateau encompasses the PFP and ancillary facilities. Approximatelyrneighty six buildings are included in the PFP Zone. This paper addresses the approach for thernclosure of the PFP Zone within the Central Plateau.rnThe PFP complex of buildings forms the bulk of the structures in the PFP Zone. For closure ofrnthe above-grade portion of structures within the PFP complex, the approach is to remove them torna state called “slab-on-grade” per the criteria contained in PFP End Point Criteria document andrnas documented in action memoranda. For below-grade portions of the structures (such as belowgradernrooms, pipe trenches and underground ducts), the approach is to remove as much residualrncontamination as practicable and to fill the void spaces with clean fill material such as sand,rngrout, or controlled density fill. This approach will be modified as planning for the waste sitesrnprogresses to ensure that the actions of the PFP decommissioning projects do not negativelyrnimpact future planned actions under the CERCLA. Cribs, settling tanks, septic tanks and otherrnmiscellaneous below-grade void spaces will either be cleaned to the extent practicable and filledrnor will be covered with an environmental barrier as determined by further studies and CERCLArndecision documents. Currently, between two and five environmental barriers are proposed to bernplaced over waste sites and remaining building slabs in the PFP Zone.
机译：P精加工厂（PFP）和相关的加工设施位于华盛顿东部汉福德工地的200rnarea。该区域是现在所谓的中央高原的一部分。为了封闭中央高原汉普郡受污染的设施和废物场，最近发表的《中央高原封闭计划》 [1]提出了将区域地理划分为区域的提议。在中部高原提议的22个区域之一包括PFP和辅助设施。 PFP区中约有86座建筑物。本文介绍了封闭中部高原的PFP区域的方法。建筑物的PFP复合体构成了PFP区域中大部分的结构。为了关闭PFP大楼内结构的上层部分，方法是按照PFP端点标准文档和行动备忘录中记录的准则删除称为“楼上平板”的torna状态。对于结构的地下部分（例如地下室，管道沟槽和地下管道），方法是在实际可行的情况下清除尽可能多的残留污染物，并用干净的填充材料（例如沙子，水泥浆或受控密度填充）填充空隙。 。该方法将随着废物场的进度计划而修改，以确保PFP退役项目的行动不会对CERCLA下的未来计划行动产生负面影响。婴儿床，沉淀池，化粪池和其他杂物间的地下空隙将在可行的范围内进行清洁，并根据进一步的研究和CERCLArn决定文件的规定，将其覆盖以环境屏障。目前，建议在PFP区的废料场和剩余的建筑楼板上放置两到五个环境屏障。

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