METHOD OF DOMESTIC SOLID WASTES STAKING Russian patent published in 2005 - IPC

FIELD: treatment and stacking of domestic solid wastes.

SUBSTANCE: the invention is pertinent to the field of treatment and stacking of domestic solid wastes, in particular, to joint stacking of domestic solid waste products and the bioadditives produced on the basis of the settling sewage, the surplus active sludge of sewage treatment plants and the filling agents - composts from the factories for the domestic solid wastes processing. The technical result is an increased sedimentation of the placed domestic solid wastes at the optimal values of concentration of introduced bioadditives, decreased required useful area to process the domestic solid wastes and increased accuracy of determination of a time of the sedimentation process termination. The method includes introduction of the bioadditives produced on the base of a mix of sludge of waste waters of the sewage treatment plants and composts from a factory on processing of the domestic solid wastes. At introduction of bioadditives in amount of 5-7 % of the total mass of the placed waste products, the contamination of which by microflora - decomposer makes 108 - 1010 cells/g. Intensification of the process of decomposition of organic components of placed waste products takes place and due to that increased their sedimentation. At that the value of sedimentation of the layers of the placed waste products is determined by formula: , where Hsed - a value of sedimentation of layers of the placed domestic solid wastes, in meters; h - initial value of height of the placed domestic solid wastes, in meters; τ - time of sedimentation of layers of the placed domestic solid wastes, in day; Т - time constant of the process of sedimentation of the layers of the placed solid domestic solid wastes, in days. The time of a maximum sedimentation is determined by the formula: t = 3 ·T, where t - time during which the sedimentation process falls into a zone of 5 % from the value of maximum sedimentation of the layers of the placed domestic solid wastes, that is the time of termination of the process.

EFFECT: the invention ensures increased sedimentation of the placed domestic solid wastes at the optimal values of concentration of the introduced bioadditives, decreased required useful area to process the domestic solid wastes, increased accuracy of determination of a time of the sedimentation process termination.

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