JPH0295597U

JPH0295597U -

Info

Publication number: JPH0295597U
Application number: JP432589U
Authority: JP
Priority date: 1989-01-17
Filing date: 1989-01-17
Publication date: 1990-07-30

Description

[Brief explanation of the drawing]

第１図は本考案に係るＦＲＰ製合併処理浄化槽
の縦断面図であり、第２図はその横断面図である
。第３図は汚水返送装置を形成する分流箱の横断
面図であり、第４図は一部を省略した第３図のイ
―イ視断面図、第５図は第３図のロ―ロ視断面図
、第６図は第３図のハ―ハ視断面図である。１……槽本体、４……沈殿分離室又は嫌気濾床
室、５……接触曝気室、６……沈殿室、７……消
毒室、１０……エアーリフトポンプ、１１……コ
ンブレツサー、１２……分流箱、１３……返送管
、１７……箱本体、１８……第１堰、１９……第
２堰、２２……汚水返送装置、Ｓ……接触曝気室
内の汚水、Ｑ′……返送流、Ｑ″……戻し流、Ｑ
……汲み上げ流。 FIG. 1 is a longitudinal cross-sectional view of an FRP combined treatment septic tank according to the present invention, and FIG. 2 is a cross-sectional view thereof. Fig. 3 is a cross-sectional view of the diversion box that forms the wastewater return device, Fig. 4 is a cross-sectional view taken from Fig. 3, with some parts omitted, and Fig. 5 is a cross-sectional view taken from Fig. 3. FIG. 6 is a cross-sectional view taken along the line in FIG. 3. 1...tank body, 4...sedimentation separation chamber or anaerobic filter bed chamber, 5...contact aeration chamber, 6...sedimentation chamber, 7...disinfection chamber, 10...air lift pump, 11...combustor, 12 ...Diversion box, 13...Return pipe, 17...Box body, 18...First weir, 19...Second weir, 22...Sewage return device, S...Sewage in the contact aeration chamber, Q'... …Return flow, Q″…Return flow, Q
...pumping flow.

Claims

[Scope of Claim for Utility Model Registration] (1) In an FRP combined treatment tank comprising a sedimentation separation chamber or an anaerobic filter bed chamber 4, a contact aeration chamber 5, a precipitation chamber 6, and a disinfection chamber 7, the contact aeration chamber Sewage S in 5
an air lift pump 10 that pumps up wastewater, and a branch flow that adjustably distributes the sewage pumped up by the air lift pump 10 into a return flow Q' to the sedimentation separation chamber or anaerobic filter bed chamber 4 and a return flow Q'' to the contact aeration chamber 5. A combined treatment septic tank made of FRP, characterized in that it is equipped with a sewage return device 22 consisting of a box 12 and a return pipe 13 for transferring the return flow Q' to the sedimentation separation chamber or the anaerobic filter bed chamber 4. (2) Air The lift pump 10 is connected to the contact aeration chamber 5.
The FRP combined treatment septic tank according to claim 1, wherein the wastewater S is pumped up from the vicinity of the settling chamber side partition wall 3. (3) The FRP combined treatment according to claim (1) or (2), wherein the diversion box 12 is configured to distribute the wastewater into a return flow Q' and a return flow Q'' via two weirs 18 and 19. Septic tank. (4) Claim (3) At least one of the two weirs 18 and 19 is a weir whose opening area is adjustable.
) The FRP combined treatment septic tank described in ). (5) The FRP combined treatment septic tank according to claim (3), wherein at least one of the two weirs 18 and 19 is a height-adjustable weir. (6) The FRP combined treatment septic tank according to claim (4), wherein the weir whose opening area can be adjusted is a submerged weir.