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US 2016/0096746 A1Published application
Biochar treatment of contaminated water
AssigneeSouthwest Research Institute
InventorMaoqi FENG
Life of this patent
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Abstract
The present disclosure relates generally to the treatment of water using biochar. More specifically, the treatment of flowback water from drilling operations such as hydraulic fracturing or the treatment of tailing water from tar sands production. Such treatment results in the reduction of various constituents such as metal ions, organic compounds and various metals to provide recycled water suitable for reuse or discharge.
Claims20
A method for treatment of water to produce recycled water comprising:
- supplying a biochar sorbent bed and supplying water containing organic and inorganic contaminants to said biochar sorbent bed wherein said biochar removes all or a portion of said contaminants and recovering said recycled water wherein said levels of contaminants are reduced or removed.
A method for treatment of contaminated water comprising:
- supplying contaminated water containing dissolved solids to be removed;
- treating said contaminated water with biochar, wherein said biochar is present at a level of 0.5% by weight to 30% by weight of said contaminated water;
- and
- removing 40% by weight to 90% by weight of said dissolved solids in said contaminated water.
1 more element
A method for treatment of flowback water from drilling operations comprising:
- supplying flowback water containing dissolved solids to be removed;
- treating said flowback water with biochar, wherein said biochar is present at a level of 10.0% by weight to 30% by weight of said flowback water;
- and
- removing 40% by weight to 90% by weight of said dissolved solids in said flowback water.
1 more element
Dependencies are inferred from the claim text.