发明名称 |
In-situ treatment of waste stacks, soils or earth materials to immobilize metals contained therein |
摘要 |
A process for in situ immobilization of metals in waste stack affected zones including a waste stack and any adjacent boundary zone. One form of the process includes: (a) forming at least one treatment passageway which extends within the waste stack affected zone; (b) injecting a treatment liquid into the treatment passageway; said treatment liquid including at least one microbe nutrient which is capable of sustaining activity of the at least one microbe; (c) providing at least one microbe in sufficient proximity to the treatment passageway to receive treatment liquid therefrom; said at least one microbe being capable of growing in the presence of said treatment liquid; said at least one microbe also being capable of producing microbial sulfides which are sulfide by-products of microbial activity in the waste stack affected zone; (d) reacting the microbial sulfides in situ with metal ions or metal-containing compounds contained in said waste stack affected zone to form metal sulfides; (e) reducing solubility of the metal ions or metal-containing compounds contained in the waste stack affected zone as a result of forming the metal sulfides; and (f) inhibiting the migration rate of metal ions or metal-containing compounds within or from the waste stack affected zone.
|
申请公布号 |
US5710361(A) |
申请公布日期 |
1998.01.20 |
申请号 |
US19960772174 |
申请日期 |
1996.12.18 |
申请人 |
J. R. SIMPLOT COMPANY |
发明人 |
HARRINGTON, JOSEPH G.;HUMBERGER, ROGER B.;ORR, MICHAEL L.;SCHWARTZ, CHARLES H. |
分类号 |
B09B1/00;B09C1/08;B09C1/10;(IPC1-7):A62D3/00;B09B3/00 |
主分类号 |
B09B1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|