公开(公告)号：US20090095686A1

公开(公告)日：2009-04-16

申请号：US12119433

申请日：2008-05-12

Applicant: Myriam Chartier ,  Aurelie Dhenain ,  Guy Mercier ,  Jean-Francois Blais ,  Patrick Drogui ,  Ghislain Bongo

Inventor： Myriam Chartier ,  Aurelie Dhenain ,  Guy Mercier ,  Jean-Francois Blais ,  Patrick Drogui ,  Ghislain Bongo

IPC: B03D1/02 ,  B03D1/14

CPC classification number: C22B21/0069 ,  B03D1/008 ,  B03D1/01 ,  B03D1/012 ,  B03D1/02 ,  C22B7/006 ,  C22B21/0007 ,  Y02P10/234

Abstract: A process for treating a waste material coming from aluminum production, the waste material containing contaminants polycyclic aromatic hydrocarbons (PAH) and inorganic fluoride compounds containing fluoride ions, involves flotation of a waste mixture of the waste material in the presence of a surfactant capable of producing PAH-rich micelles that are floated to produce froth containing the PAH-rich micelles; and stabilization of the waste mixture by adding a fluoride ion stabilizer to form stabilized fluoride compounds with reduced solubility in the waste mixture and in a toxicity characteristics leaching procedure test, to produce decontaminated solids containing the stabilized fluoride compounds and a leachate solution.

Abstract translation: 用于处理来自铝生产的废料的方法，含有污染物多环芳烃（PAH）的废物和含有氟离子的无机氟化物的方法涉及在能够生产的表面活性剂存在下浮选废料的废物混合物 富含PAH的胶束漂浮以产生含富含PAH的胶束的泡沫; 并通过添加氟离子稳定剂来稳定化废物混合物，以形成在废物混合物中具有降低的溶解度的稳定的氟化物化合物和毒性特征浸出程序试验，以产生含有稳定的氟化物和浸出液的去污固体。