Treatment method for oily sludge and method for soil remediation
US12371360B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Oct 17, 2022 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Oct 17, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present disclosure provides a treatment method for oily sludge and a method for soil remediation. The treatment method for oily sludge includes: mixing the oily sludge with target biochar uniformly according to a first preset mass ratio, and conducting catalytic pyrolysis at a first preset temperature to achieve efficient removal of petroleum hydrocarbons, to obtain a pyrolysis residue used for soil remediation. In the present disclosure, the method realizes resource utilization and harmless utilization of the pyrolysis residue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.