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US 8,557,118 B2Granted
Gasification grey water treatment systems
AssigneeGeneral Electric Company
InventorsJames Scott Kain, Dinh-Cuong Vuong, David Brian Fraser, Timothy Michael Pickett
Life of this patent
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Abstract
In one embodiment, a grey water treatment system includes an oxidation reactor for oxidizing grey water. The grey water treatment system also includes a biological reduction and precipitation system with microbes designed to remove one or more target components from the oxidized grey water.
Claims23
A system, comprising:
- a gasification and scrubbing system configured to produce syngas and a black water from a fuel source;
- a black water treatment system coupled to the gasification and scrubbing system, wherein the black water treatment system is configured to treat the black water to produce a grey water;
- and
- a grey water treatment system coupled to the black water treatment system and configured to receive the grey water, wherein the grey water treatment system comprises:
- an oxidation reactor configured to oxidize the grey water using a chemical oxidant to produce an oxidized grey water;
- and
- a biological reduction and precipitation biotreatment system comprising microbes configured to remove one or more target components from the oxidized grey water.
4 more elements
A system, comprising:
- a gasification and scrubbing system configured to produce syngas and a black water from a fuel source;
- a black water treatment system coupled to the gasification and scrubbing system, wherein the black water treatment system is configured to treat the black water to produce a grey water;
- and
- a grey water treatment system coupled to the black water treatment system and configured to receive the grey water, wherein the grey water treatment system comprises:
- an oxidation reactor configured to oxidize selenium species within the grey water using a chemical oxidant;
- and
- a biological reduction and precipitation biotreatment system comprising microbes configured to reduce the oxidized selenium species to produce a reduced selenium species, and the biological reduction and precipitation biotreatment system is configured to precipitate the reduced selenium species.
4 more elements
A system, comprising:
- a gasification and scrubbing system configured to produce syngas and a black water from a fuel source;
- a black water treatment system coupled to the gasification and scrubbing system, wherein the black water treatment system is configured to treat the black water to produce a grey water;
- and
- a grey water treatment system coupled to the black water treatment system and configured to receive the grey water, wherein the grey water treatment system comprises:
- a pretreatment system configured to remove scaling components from the grey water to produce a pretreated grey water;
- and
- a biotreatment system comprising one or more oxidation reactors configured to oxidize the pretreated grey water and one or more biological reduction and precipitation bioreactors configured to remove on or more target components from the oxidized pretreated grey water to produce biotreated grey water.
4 more elements
A method, comprising:
- generating syngas and a black water in a gasification and scrubbing system;
- treating the black water in a black water treatment system to produce a grey water;
- receiving the grey water from the black water treatment system;
- oxidizing at least a selenium species within the grey water to produce an oxidized selenium species using an oxidation reactor;
- reducing the oxidized selenium species within the grey water to produce a reduced selenium species using a biological reduction and precipitation biotreatment system;
- and
- removing at least the reduced selenium species from the grey water using the biological reduction and precipitation biotreatment system.
4 more elements
Dependencies are inferred from the claim text.