B - Operations – Transporting – 09 – B
Patent
B - Operations, Transporting
09
B
B09B 3/00 (2006.01) B09C 1/08 (2006.01) C02F 11/00 (2006.01) C04B 28/34 (2006.01) G21F 9/30 (2006.01) A62D 3/00 (2006.01)
Patent
CA 2118987
The present invention discloses a method of treating lead bearing process materials and lead toxic hazardous wastes, The invention relates to treatment methods employed to chemically convert leachable lead in lead bearing solid and liquid waste materials to a non-leachable form by mixing the material with lime, gypsum and/or phosphoric acid. The solid and liquid waste materials include contaminated sludges, slurries, soils, wastewaters, spent carbon, sand, wire chips, plastic fluff, cracked battery casings, bird and buck shots and tetraethyl lead contaminated organic peat and muck. The present invention discloses a process comprising a single step mixing of one or more treatment additives, and a process comprising a two step mixing wherein the sequence of performing the steps may be reversible. The present invention provides a new way of treating a universe of lead contaminated materials at any pH.
Pal Dhiraj
Yost Karl W.
Marks & Clerk
Sevenson Environmental Services Inc.
LandOfFree
Fixation and stabilization of metals in contaminated materials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fixation and stabilization of metals in contaminated materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fixation and stabilization of metals in contaminated materials will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2000436