Abstract: A method for the biological processing of organic substances and more particularly for anaerobic biological hydrolysis for subsequent biomethanization, with pH value control, in the case of which the dissolved and/or undissolved organic substances supplied to a first reactor are at least subjected to slight acidification in such reactor, the major part of the undissolved, at least partly acidified organic substances taken from the first reactor are supplied to a second reactor for the performance of at least one solids hydrolysis step and the main part of the dissolved, at least partly acidified organic substances from the first reactor and from the second reactor are supplied to a third reactor for the performance of at least one methanization step.

Abstract: In a process of treating waste materials for an anaerobic digestion of the biogenic organic constituents of the garbage, particularly of the source separated organic waste, the wet waste, the residual waste and the commercial wastes, an easily dewaterable suspension of the biogenic organic substances is formed in a pretreating stage by a mechanical treatment including a selective dissolution and defibration of the biogenic organic substances. In dependence on the adjusted solids concentration the action of flow-dynamical forces is so controlled that the not biogenic organic substances, are not subjected to an appreciable disintegration before they are removed at the end of the pretreatment. Non-digestable substances are removed. The suspension is converted to biogas by an anaerobic digestion and to a compost-like residue.

Abstract: In an alarm system, differently colored leads of the connection cable between the individual distributors are respectively assigned to different current paths according to a random sequence. By providing this association, targeted manipulations at the connection lines of the signal lines are prevented.