公开(公告)号：US5640703A

公开(公告)日：1997-06-17

申请号：US593479

申请日：1996-01-29

申请人： Kenneth Walter Brierley ,  Michael Robert Ellison

发明人： Kenneth Walter Brierley ,  Michael Robert Ellison

IPC分类号： G21F9/30 ,  G21F9/00

CPC分类号： G21F9/30

摘要： A process for the treatment of solid waste material which is or is suspected to be contaminated with plutonium or compounds thereof with or without other hazardous contaminants, which process includes: contacting the said material with and thereby dissolving contaminants as complexes by a liquid medium which comprises Solution X which comprises an aqueous solution which is free of ingredients which are naturally degradable to non-toxic products with or without mild physical assistance such as heat or ultra-violet radiation, said solution comprising:(a) carbonated water;(b) a conditioning agent; and(c) a complexing agent which comprises the anion of a single or multiple carboxylic acid species having from 2 to 6 carbon atoms in each carboxylic acid species;and separating the liquid medium from the waste material and recovering the dissolved contaminants from the liquid medium and wherein the step of contacting the waste material with the said liquid medium is preceded by a step of contacting the waste material with a dissolver solution of non-neutral pH different from the pH of the said liquid medium whereby solid contaminant particles are washed from the waste material and/or dissolved as simple ions in the dissolver solution.

摘要翻译： 用于处理被怀疑被钚或其化合物污染的固体废物的方法，其具有或不具有其它有害污染物，该方法包括：使所述材料与液体介质接触，从而将污染物与液体介质一起溶解，所述液体介质包括 溶液X，其包含不含天然可降解成无毒产物的成分的水溶液，所述成分具有或不具有温和的物理辅助，例如热或紫外辐射，所述溶液包含：（a）碳酸水; （b）调理剂; 和（c）在每个羧酸物质中包含具有2至6个碳原子的单个或多个羧酸物质的阴离子的络合剂; 并且从液体介质中分离液体介质并从液体介质中回收溶解的污染物，并且其中使废料与所述液体介质接触的步骤之前是将废料与非中性溶解溶液接触的步骤 pH不同于所述液体介质的pH，由此固体污染物颗粒从废物中洗涤和/或以溶解溶液中的简单离子溶解。