07022235 is referenced by 3 patents and cites 51 patents.

A biological treatment system, including a wastewater system drain field and at least one perforated distribution pipe located within the drain field and adapted to receive effluent. At least one perforated outer pipe surrounds the at least one distribution pipe to receive effluent from the at least one distribution pipe and to dispense the effluent to the drain field after it has been biologically treated in the at least one outer pipe. The system also includes a method of biological treatment comprising the steps of supplying effluent to at least one vessel positioned within a wastewater drain field; delivering gas to the at least one vessel to interact with the effluent such that the effluent experiences aerobic biological treatment; and passing biologically treated effluent from the at least one vessel to the wastewater drain field.

Title
Wastewater biological treatment system and method therefor
Application Number
10/663211
Publication Number
7022235 (B2)
Application Date
September 16, 2003
Publication Date
April 4, 2006
Inventor
Alan F Hassett
Berwyn
PA, US
Agent
Akin Gump Strauss Hauer & Feld
Assignee
The White Oak Partnership
PA, US
IPC
C02F 3/00
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