METHOD FOR COLLECTION AND REMOVAL OF FILTRATE AND LANDFILL GAS AT DOMESTIC SOLID GARBAGE DUMPS IN ACCIDENTS OF TERRAIN Russian patent published in 2015 - IPC B09B1/00 

FIELD: construction.

SUBSTANCE: invention relates to the field of construction and environmental safety. For the collection and removal of filtrate and landfill gas at domestic solid garbage dumps in accidents of the terrain, base 3 is prepared, cutting and rolling of waterproofing material 4 is performed on it along the bottom 16 and slopes 17 of accident of the terrain. Then, assembly of the drain pipe 10, layering of municipal solid wastes by layers with intermediate layers 5 from inert materials, arrangement of surfaces of waste waterproofing and installation of landfill gas collection system are performed. In this case, the drain layer 1 is laid on the waterproofing material, on which the main drainage pipe with series of auxiliary pipes connected to the main drainage pipe 10 and forming the structure of "herringbone" type in order to ensure removal of filtrate across the entire area of polygon under the influence of gravitational forces, is mounted according to the natural terrain slope. Besides, collection and removal of filtrate and landfill gas is carried out separately by the pipeline systems mounted on different levels, made of polymer materials. Collection of landfill gas is carried out by the gas collection system 6, including vertical perforated pipes buried into the thickness of wastes, which are connected by the upper end with the main return manifolds 9, in the end portion of which the vacuum pump 19 is installed.

EFFECT: invention enhances the efficiency of collection and removal of filtrate and landfill gas, increases the workability of the process of their removal.

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