| 摘要 |
The present invention relates to a sewer system comprising a sewage receptacle ( 1 ), sewer piping ( 3 ) connected to the sewage receptacle by means of a discharge valve ( 2 ), a vacuum generating means ( 4 ) for generating vacuum in the sewer piping, a control mechanism ( 5 ) for controlling the discharge valve, and a vacuum buffer means. In order to provide a small volume vacuum buffer means that may provide a timely raising of the vacuum level available for the control mechanism ( 5 ), the vacuum buffer means comprises an active buffer device ( 10 ) in fluid communication with the control mechanism ( 5 ) and the sewer piping ( 3 ).
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