Advanced Thermophilic Fermentation of Wood Wastes with Nitrogen-rich Agricultural and Other Organic Wastes for the Production of Biomethane/Renewable Natural Gas Globally | Chapter 1 | Research Advances in Microbiology and Biotechnology Vol. 4

 Improved thicket management formed of the collection of tree mortalities and of the pruning of tree stands can yield a big, but as of now mainly un-utilized biomass property that can be employed as well high in nitrogen content land wastes such as animal manures to produce inexhaustible natural gas via a organic process.  The novel process mimics the well-known forest digestion to poison gas employed by lower termites but operating at thermophilic temperatures. The adaptation process of renewable forest to green or bio-poison gas, designated as “Wood to Methane 3+2” exists of five (3+2) steps. The initial “3” steps of the process include (a) forest maceration to 1 mm pieces, (b) aerobic hyperthermophilic (70o) hydrolysis of the homogenized combination of wood and manure accompanying the aid of thermophilic fungi (Humicola insolens and Sporotrichum thermophile), and (c) the anaerobic thermophilic (55oC) co-digestion of the feedstock into biogas. The definitive “2” steps consist of (d) the improve of the generated biogas into “basic” bio-methane fuel by way of a three-stage commercial sheath separation plan along with the sequestration of the colorless odorless gas, and (e) the conversion of the isolated carbon dioxide into “subordinate” bio-methane fuel accompanying hydrogen produced by wind-stimulate water electrolysis in a thermophilic (55oC) anaerobic trickle bed catalyst employing hydrogenotrophic archaea (Methanothermobacter thermautotrophicus). An optimally patterned, modular, industrial type plant treats occurring 12,000 mt (metric tons) of forest wastes (80% TS) and 12,000 mt of suitable animal manures (10% TS) and create 7.6 million Nm3 of primary and subordinate bio-poison gas fuel along with biography-fertilizers amounting to 2,800 mt of green liquid as ammonium nitrate, 1,000 mt of potassium concentrate and 3,500 mt of phosphate-rich humic soil amendment, has a negative 10,000 mt colorless odorless gas footprint and demands 25 MW of wind power.  The caused renewable natural gas maybe employed essentially or along with green hydrogen as an state-of-the-art, renewable, negative carbon conveyance fuel. The available appropriate waste-wood possessions globally are adequate to supply as much as 1/5 of the world’s energy basic needs in the 2nd half of the 21st century.

Author(s) Details:

John G. Ingersoll,
ECOCORP INC., Arlington, VA-22202, USA.

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