USE OF APATITE FOR CHEMICAL STABILIZATION OF SUBSURFACE CONTAMINANTS

Bostick, Dr. William D.

Materials and Chemistry Laboratory, Inc. (United States)

关键词: Copper;    Antimony;    Uranium;    Nickel;    Stabilization;   

DOI  :  10.2172/820754
RP-ID  :  NONE
RP-ID  :  AC26-01NT41306
RP-ID  :  820754

美国|英语

来源: UNT Digital Library

【 摘 要 】

Groundwater at many Federal and civilian industrial sites is often contaminated with toxic metals at levels that present a potential concern to regulatory agencies. The U.S. Department of Energy (DOE) has some unique problems associated with radionuclides (primarily uranium), but metal contaminants most likely drive risk-based cleanup decisions, from the perspective of human health, in groundwater at DOE and U.S. Environmental Protection Agency (EPA) Superfund Sites include lead (Pb), arsenic (As), cadmium (Cd), chromium (Cr), mercury (Hg), zinc (Zn), selenium (Se), antimony (Sb), copper (Cu) and nickel (Ni). Thus, the regulatory ''drivers'' for toxic metals in contaminated soils/groundwaters are very comparable for Federal and civilian industrial sites, and most sites have more than one metal above regulatory action limits. Thus improving the performance of remedial technologies for metal-contaminated groundwater will have ''dual use'' (Federal and civilian) benefit.