Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 13, 2010
Patent Application Number
11579473
Date Filed
November 25, 2004
Patent Primary Examiner
Patent abstract
The invention relates to a plant-based sewage treatment system for purifying waste water including at least one planter, a supply unit which supplies waste water to be purified to the plant-based sewage treatment system, a discharge unit for discharging purified water from the plant-based sewage treatment system, and plants placed inside the planter. The plants are arranged, without a substrate, inside the planter. At least a portion of the planter is situated on a building roof. A space is provided between the planter and the building roof and an exchange medium from the building can be flowed through the space.
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