University of California

Alta Environmental Services, Inc.

Ruihong Zhang

Chris E Choate

Paul A Sherman

Zhongli Pan

Jane H Turnbull

Dave Konwinski

Zhiqin Zhang

A fermentation system for production of biogas from solid organic material, the system including at least one fermentation reactor. The fermentation reactor includes a vessel () for housing a feed mixture having liquid and solid particles and an outlet port (), a strainer assembly () at the outlet port for filtering processed feed mixture from the vessel, and a biogasification reactor () in fluid communication with another fermentation reactor, the other fermentation reactor configured to produce a biomethane. The strainer assembly further includes a mixture driving member () positioned in the strainer body () adjacent the drain opening (), the mixture driving member having a driving surface configured to receive the liquid passing through the filter member (). The driving surface engages the filter member such that solid particles are driven from a surface of the filter member when the driving member is activated. A method of continuously producing a biogas and servicing a strainer assembly for a hydrolysis reactor are disclosed.

Fermentation system having strainer assembly

The present invention provides methods for the generation of methane by a two phase anaerobic phase system (APS) digestion of organic substrates. Also provided is a device for practicing the methods of the invention. The APS-digester system is a space-efficient, high-rate solids digestion system. The APS-digester system consists of one or more hydrolysis reactors, a buffer tank and one biogasification reactor.

Anaerobic phased solids digester for biogas production from organic solid wastes

A multi-stage process and system for treating organic waste materials includes steps of hydrolyzing the materials in an anaerobic vessel, transferring the liquid product of hydrolysis to an anaerobic digester, and further decomposing the waste materials under aerobic conditions to yield a compost product usable as a soil amendment. Biogas produced by digestion of the hydrolysis liquid product may be burned to generate electricity or heat, and the liquid digester product may be recirculated for use as an inoculant to aid hydrolysis of subsequently processed batches of waste materials.

Organic waste material treatment system

A precision gas flow meter that is capable of measuring small flow rates of gasses precisely in the range of 0.01 to 10 L per minute. The meter is designed to measure the gas flow in small volume increments of predetermined value, and therefore can be used to measure a gas flow that is continuous or discontinuous. The flow meter can be used to measure the gas production rates from many processes, including biological reactors, chemical reactors, and thermal-chemical reactors. The device can also be used to meter the gases that are required in small or minute volumes.

Precision gas flow meter

The present invention provides an integrated system for treatment of biodegradable waste, including sewage sludge, forestry waste, food waste, agricultural waste, municipal waste, and the like. The integrated system comprises an anaerobic reactor, at least one aerobic reactor, a filtration device, and a desalinization device.

Treatment of swine wastewater by biological and membrane separation technologies

Process for treatment of organic waste materials

The present invention provides methods for the generation of methane by a two phase anaerobic phase system (APS) digestion of organic substrates. Also provided is a device for practicing the methods of the invention. The APS-digester system is a space-efficient, high-rate solids digestion system. The APS-digester system consists of one or more hydrolysis reactors and one biogasification reactor.

Growing community of inventors

Davis, CA, United States of America

Ruihong Zhang