JPS5993789U

JPS5993789U - Sewage septic tank

Info

Publication number: JPS5993789U
Application number: JP1982189054U
Authority: JP
Inventors: 八郎佐藤
Original assignee: 株式会社クボタ
Priority date: 1982-12-13
Filing date: 1982-12-13
Publication date: 1984-06-26

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はこの考案の実施例の断面図、第２図は第１図の
■−■線断面図、第３図は実施例の作用説明図、第４図
は他の実施例の作用説明図、第５図はさらに他の実施例
の要部断面図、第６図イ。口はさらに他の実施例の断面図、第７図イ９口はさらに
他の実施例の要部断面図である。１・・・汚水浄化槽、ＩＡ・・・汚水流入口、１Ｂ・・
・沈澱分離室、１Ｃ・・・接触曝気室、ＩＤ・・・沈澱
室、１Ｅ・・・消毒室、１Ｆ・・・浄化水排出口、２Ａ
、　　２Ｂ。２Ｃ・・・仕切板、３・・・移流口、３Ａ・・・移流口
下縁、４・・・気泡、５・・・汚泥返送口、６・・・散
気管、ＷＬ・・・接触曝気室基準水面、Ｗ’、Ｌ’・・
・盛り上り水位。７　り　ｌη　（４）＼　　Ｌ・眉？’ｌη　（０）八／７＼　￥　　／■１ノ）助Fig. 1 is a sectional view of an embodiment of this invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is an explanatory diagram of the operation of the embodiment, and Fig. 4 is an explanation of the operation of another embodiment. FIG. 5 is a sectional view of a main part of still another embodiment, and FIG. 6A is a sectional view of a main part of another embodiment. 7A is a sectional view of still another embodiment, and FIG. 7B is a sectional view of a main part of still another embodiment. 1... Sewage septic tank, IA... Sewage inlet, 1B...
・Sedimentation separation room, 1C... Contact aeration room, ID... Sedimentation room, 1E... Disinfection room, 1F... Purified water outlet, 2A
, 2B. 2C... Partition plate, 3... Advection port, 3A... Lower edge of advection port, 4... Air bubbles, 5... Sludge return port, 6... Diffusion pipe, WL... Contact aeration Room standard water level, W', L'...
・Rising water level. 7 ri lη (4) \L・Eyebrow? 'lη (0) 8/7 ＼￥ /■1 ノ) Help

Claims

[Scope of utility model registration request]

(1) In a sewage septic tank, which consists of a sedimentation separation chamber into which sewage flows, a contact aeration chamber, a sedimentation chamber, and a disinfection chamber having an outlet for treated purified water, the sewage to be treated is advected to each of the above chambers in order. A transfer flow port is provided in the partition plate that partitions the contact aeration chamber from the sedimentation separation chamber to allow the wastewater to naturally flow into the contact aeration chamber, and in addition to the transfer port, the partition plate head is connected to the contact aeration chamber. A sludge return port for returning the sludge in the contact aeration chamber to the sedimentation separation chamber is provided at a position slightly above the reference water level of the contact aeration chamber and lower than the rising water level generated on the reference water surface by air bubbles diffused in the contact aeration chamber. A sewage septic tank characterized by:

(2) The sewage septic tank according to claim 1, wherein a rectifying member for preventing backflow from the contact aeration chamber to the sedimentation separation chamber extends from the lower edge of the advection port.

(3) The sewage septic tank according to claim 1, which is a registered utility model, in which a cap having an opening through which the sewage to be treated flows out below the reference water level in the contact aeration chamber is fitted to the advection port.

(4) Scope of Utility Model Registration Claims Paragraph 1, Paragraph 2, or Paragraph 2, in which a sludge return pipe is provided on the sedimentation separation chamber side of the sludge return port to guide the returned sludge in a direction other than directly below along the partition plate. Sewage septic tank described in Section 3.