| 摘要 |
<p>The present invention relates to a method for producing biogas by anaerobic digestion of organic matter. The method comprises: feeding organic matter suitable for biogas production to a first tank reactor 41, and in the first tank reactor, contacting the organic matter with biogas producing microorganisms for digestion under anaerobic conditions; and digesting the organic matter in the first tank reactor 41 while producing biogas. The method further comprises: providing digested sludge from an anaerobic digestion process in a second tank reactor 31; 46, which differs from the first tank reactor 41, said digested sludge containing a desired composition of nutriments; and feeding said nutriments into said first tank reactor 41. The invention also relates to a biogas producing system.</p> |
