DEVICE FOR INCREASING VOLUMES OF EXTRACTED BIOGAS FROM SOLID HOUSEHOLD WASTE LANDFILLS Russian patent published in 2019 - IPC B09B3/00 B09B5/00 

FIELD: waste processing and disposal.

SUBSTANCE: use for decontamination of solid household waste landfills and dumps of organic wastes by creating conditions in wells for increasing volumes of extracted biogas and its useful use. Device comprises gas-perforated perforated pipes immersed into wells, connected to collector and compressor station, note here that biogas enrichment column with sections filled with charge is installed with collector and station. Besides, electrochemical electrolytic cell with analyte and catholyte chambers is introduced, besides, hydrogen is supplied from the analyte chamber into the column through its bottom. Also, raw biogas containing methane, oxide and carbon dioxide from the compressor station input is supplied through the bottom of the column. In charging of the benefication column there is interaction of oxide and carbon dioxide with hydrogen, as a result of which additional volumes of methane are formed. In each well of landfill it is also provided control of temperature mode by supply of cold or hot water, as well as optimum pH for colony of methane-forming bacteria is regulated by supply of solution of catholyte or analyte to appropriate well of landfill. Filling in the beneficiation column sections is represented by fibrous graphite material with developed surface of gas interaction during their reaction.

EFFECT: use of the proposed device will make it possible to increase profitability of processes of obtaining biogas and to increase scope of works on solid household waste treatment in dumps and landfills.

1 cl, 1 dwg