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US 10,266,440 B2Granted
Anaerobic digestion system and method
OwnerAbdolreza Assadi, Ronald Scott Sleightinventors
Life of this patent
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Abstract
An anaerobic digestion system may include a material grinding/pulping portion, a hydrolysis portion arranged downstream of the grinding portion, a multiple chamber anaerobic reactor arranged downstream from the hydrolysis portion and including a gas collection and reintroduction system, a collection system for collecting digestate and gas from the anaerobic reactor.
Claims20
An anaerobic digestion system, comprising:
- a material grinding/pulping portion;
- a hydrolysis portion arranged downstream of the grinding portion;
- an anaerobic reactor arranged downstream from the hydrolysis portion and comprising a plurality of zones each defining a particular stage of an anaerobic digestion process and a gas collection and reintroduction system configured to collect gas from one of the plurality of zones and reintroduce the gas into a downstream zone;
- and
- a collection system for collecting digestate and gas from the anaerobic reactor.
2 more elements
A method of converting waste to energy, comprising:
- receiving and grinding feedstock material to form a liquid/solid slurry;
- performing hydrolysis on the liquid/solid slurry;
- performing anaerobic digestion on the liquid/solid slurry in an anaerobic reactor, the anaerobic reactor comprising a plurality of stages arranged in series;
- and
- collecting gas from a first stage of the plurality of stages and reintroducing the gas into the liquid/solid slurry in a later stage of the plurality of stages.
2 more elements
An anaerobic digestion system, comprising:
- an input system comprising a feedstock input device and a liquid feeding system, the liquid feeding system comprising a waste water stream;
- a material grinding/pulping portion;
- a hydrolysis portion arranged downstream of the grinding portion;
- an anaerobic reactor arranged downstream from the hydrolysis portion;
- and
- a collection system for collecting digestate and gas from the anaerobic reactor.
3 more elements
Dependencies are inferred from the claim text.