Method to remediate contaminated soil
AssigneeSaudi Arabian Oil Company
InventorsOmer Refa Koseoglu, Robert Peter Hodgkins
Life of this patent
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Abstract
The present disclosure is directed to methods of remediating contaminated soil. The methods may include mixing an oxidant, a catalyst, and optionally a phase transfer agent to form an oxidant mixture, applying the oxidant mixture onto the contaminated soil, washing the contaminated soil with a washing solution, inserting vacuum pipes into the contaminated soil, and vacuuming the contaminated soil to remove at least one of the oxidation mixture, contaminants, or oxidation products.
Claims18
A method for treating soil contaminated with sulfides and disulfides, the method comprising:
- analyzing the soil contaminated with sulfides and disulfides to determine the sulfide and disulfide concentrations;
- determining an oxidant concentration present in an oxidant mixture based on the sulfide and disulfide concentrations;
- mixing the determined amount of oxidant, and a catalyst to form the oxidant mixture;
- applying the oxidant mixture onto the contaminated soil;
- washing the contaminated soil with a washing solution;
- inserting vacuum pipes into the contaminated soil;
- and
- vacuuming the contaminated soil to remove at least one of the oxidant mixture, contaminants, or oxidation products, thereby treating the contaminated soil.
A method for treating soil contaminated with sulfides and disulfides, the method comprising:
- analyzing the soil contaminated with sulfides and disulfides to determine the sulfide and disulfide concentrations;
- determining an oxidant concentration present in an oxidant mixture based on the sulfide and disulfide concentrations;
- mixing the determined amount of oxidant, a catalyst, and optionally a phase transfer agent to form an oxidant mixture;
- transferring the oxidant mixture into a disperser;
- applying the oxidant mixture onto the contaminated soil;
- washing the contaminated soil with water;
- inserting vacuum pipes into the contaminated soil;
- and
- vacuuming the contaminated soil to remove at least one of the oxidant mixture, contaminants, or oxidation products, thereby treating the contaminated soil.
Dependencies are inferred from the claim text.