System and method for purifying process water
AssigneeCool Planet Energy Systems, Inc.
InventorsVern S. Traxler, Timothy Alan Thompson, Paul Faust, Wilson Hago
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Abstract
In accordance with one embodiment, a process is described for a water treatment process in which process water is treated with recycled biochar. In accordance with one aspect, process water is passed through activated carbon generated by the biomass pyrolysis and gasification. In accordance with another aspect, the process water is treated to expel gaseous compounds within the process water. In this manner both inorganics, light organics and heavy organics can be removed from the process water. No fermentation is involved.
Claims28
A method for removing contaminants from process water comprising:
- pyrolyzing biomass to produce gaseous compounds and biochar;
- gasifying the biochar from the pyrolysis process to create an adsorptive medium;
- and
- treating a process water comprising one or more of organic contaminants, inorganic contaminants or particulate contaminants by passing the process water through the adsorptive medium to remove one or more of organic contaminants, inorganic contaminants or particulate contaminants to produce treated process water.
A biochar recycling system for treatment of water produced from biomass conversion to fuels comprising:
- a pyrolyzer capable of pyrolyzing biomass to produce gaseous compounds and biochar;
- a water treatment system for removing impurities from process water;
- and
- a gasification system for gasifying the removed impurities.
Dependencies are inferred from the claim text.