Patent 7115201 Issued on October 3, 2006. Estimated Expiration Date: March 7, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
210/698, Utilizing organic agent210/699, Phosphorus containing210/700, Nitrogen containing210/701, Acrylic polymer210/721, Including oxidation210/725, Utilizing organic precipitant210/727, Including organic agent210/759, Utilizing peroxy compound (e.g., hydrogen peroxide, peracid, etc.)210/912, Heavy metal210/916, Odor (including control or abatement)422/5, Deodorizing210/710, Treating the insoluble substance252/180, Plant or organic material containing210/724, Regulating pH210/713, Of separated solids210/709, Controlling process in response to stream condition210/638, Including ion exchange or other chemical reaction210/717In situ
A method of treating mine drainage water including the step of adding a scale control agent to the mine drainage water and, optionally, adding an oxidizing agent to the mine drainage water and/or precipitating and settling the metals in their hydroxide form from the water. The treated water may be safely returned to the environment.
Other References
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March 7, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
