Process for optimizing the operation of a plug-flow fermenter for the anaerobic fermentation of organic wastes
AssigneeHitachi Zosen Inova AG
InventorsAdrian Schatz, Marc Eugster
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Abstract
A process for optimizing the operation of a plug-flow fermenter for the anaerobic fermentation of organic wastes, wherein the plug-flow fermenter comprises a horizontally oriented fermenter tank and a stirrer, which stirrer comprises a stirrer shaft which traverses the interior of the fermenter tank in an axial manner and multiple paddles which are arranged on the stirrer shaft and protrude radially and also a drive, and the fermentation material is moved in the fermenter tank by means of the stirrer.
Claims12
A process for optimizing the operation of a plug-flow fermenter for an anaerobic fermentation of organic wastes, wherein the plug-flow fermenter comprises a horizontally oriented fermenter tank and a stirrer, which stirrer comprises a stirrer shaft which traverses the interior of the fermenter tank in an axial manner and multiple paddles which are arranged on the stirrer shaft and protrude radially and also a drive, and fermentation material is moved in the fermenter tank by means of the stirrer, wherein
- a) at least one parameter characteristic of a particular operating state of the plug-flow fermenter is measured,
- b) a particular measurement value Aactual obtained in a) is compared with a predefined nominal value Anominal, and
- c) depending on a deviation of the measurement value Aactual from the nominal value Anominal, a rotational speed of the stirrer shaft, a rotational direction of the stirrer shaft and/or a dry-substance portion of the fermentation material is adjusted.
A plug-flow fermenter for an anaerobic fermentation of organic wastes, wherein the plug-flow fermenter comprises a horizontally oriented fermenter tank and a stirrer, which stirrer comprises a stirrer shaft which traverses the interior of the fermenter tank and multiple paddles which are arranged on the stirrer shaft and protrude radially and also a drive and which stirrer is suited to moving fermentation material in the fermenter tank, wherein the plug-flow fermenter additionally comprises at least one measurement mechanism for the determination of at least one parameter characteristic of a particular operating state of the plug-flow fermenter as well as a regulator designed to adjust a rotational speed of the stirrer shaft, a rotational direction of the stirrer shaft and/or a dry-substance portion of the fermentation material on the basis of the measurement value obtained or a deviation of the measurement value from a predefined nominal value.
Dependencies are inferred from the claim text.