| 发明名称 |
Treatment of oily sludge |
| 摘要 |
Oily sludge is treated by filtering it through a precoated surface filter, treating the filtration residue with a hydrocarbon solvent and/or steam stripping the extracted residue. The residual oil content of the treated sludge is very low and it can be used for land fill operations.
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| 申请公布号 |
US4260489(A) |
申请公布日期 |
1981.04.07 |
| 申请号 |
US19790058946 |
申请日期 |
1979.07.19 |
| 申请人 |
THE BRITISH PETROLEUM COMPANY LIMITED |
发明人 |
GREIG, GEORGE;BROADRIBB, MICHAEL P. |
| 分类号 |
B01D11/02;B01D37/02;(IPC1-7):B01D11/02;B01D25/32 |
主分类号 |
B01D11/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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