公开(公告)号：US3701426A

公开(公告)日：1972-10-31

申请号：US3701426D

申请日：1971-11-18

Applicant: ROBERT D WETZEL ,  JAMES R O CONNOR

Inventor： WETZEL ROBERT D

IPC: C02F1/24 ,  C02F3/28 ,  C02F9/00 ,  C02B3/06 ,  C02C5/06

CPC classification number: C02F3/28 ,  C02F1/24 ,  C02F2201/001

Abstract: A compact, compartmentalized sewage treatment apparatus housed in a single tank having a length appreciably greater than its height in which sewage discharged into the apparatus is progressively clarified by anerobic bacterial decomposition, primary sedimentation and flotation, chemical attack to reduce coliform bacteria and BOD, and secondary sedimentation, flotation and filtration to highly clarify the effluent for discharge into lakes, rivers, harbors and other water courses.