초록 ▼

A method for cleaning a septic tank provided with at least two successive fermentation and decantation compartments connected to each other by a lateral opening. According to this method, the light and/or heavy sludges contained in each compartment are pumped and discharged in a waste tank whereas t

A method for cleaning a septic tank provided with at least two successive fermentation and decantation compartments connected to each other by a lateral opening. According to this method, the light and/or heavy sludges contained in each compartment are pumped and discharged in a waste tank whereas the bacteriological liquid medium of both compartments is pumped out and stored in a storage tank. The liquid medium kept in the storage tank is reintroduced into the septic tank after the same has been cleaned, to reactivate said tank thereby making it immediately operative. A tanker especially designed for carrying out this method is also disclosed.

대표청구항 ▼

A method for cleaning a septic tank comprising at least two successive fermentation and decantation compartments connected to each other by means of a lateral opening, each compartment containing a bacteriological liquid medium and a layer of heavy sludges sedimented or not in its bottom, the first

A method for cleaning a septic tank comprising at least two successive fermentation and decantation compartments connected to each other by means of a lateral opening, each compartment containing a bacteriological liquid medium and a layer of heavy sludges sedimented or not in its bottom, the first one of said successive comparments also containing a layer of light sludges floating on the surface of its bacteriological liquid medium, said method comprising the successive steps of: pumping the light sludges floating on the surface of the bacteriological liquid medium contained in the first compartment and discharging them into a waste tank; slowly pumping the bacteriological liquid medium contained in each of the compartments, and storing it into a storage tank; semi-liquifying the heavy sludges sedimented in the bottom of each of the compartments; pumping the so semi-liquified sludges and discharging them into said waste tank; and reintroducing the bacteriological liquid medium store in said tank into all the compartments of the tank.