Biochar in the biogas plant

Biochar can sig­nif­i­cant­ly improve the biogas yield, as proven by several inter­na­tion­al studies. One reason for this is the nature of biochar: Due to its porous struc­ture and large surface area, it binds impu­ri­ties and thus sta­bilis­es the biogas process. In addi­tion, the sub­strates in the fer­menter can be broken down more effec­tive­ly because the microor­gan­isms in the plant coal matrix are better pro­tect­ed.

Biochar also has a number of advan­tages for the biogas process when it comes to climate pro­tec­tion. If plant coal is added to the fer­men­ta­tion residue, nutri­ent losses and climate-dam­ag­ing methane gas losses are reduced. If the fer­men­ta­tion residue is car­bonised, high-quality biochar can be pro­duced from it and the carbon con­tained in the fer­men­ta­tion residue is bound over the long term. This not only pro­tects the envi­ron­ment, but also ensures sub­stan­tial­ly improved effi­cien­cy of the gas pro­duc­tion process.

Recent con­tri­bu­tions on the subject of biogas

Biochar improves biogas yield

Various inter­na­tion­al studies prove an increased gas yield through the addi­tion of biochar to the biogas process. With approx. 9,200 biogas plants (Sta­tista 2018), Germany in par­tic­u­lar offers great poten­tial for opti­mi­sa­tion. The study inves­ti­gates which…

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