JPS586795U

JPS586795U - Biological treatment equipment for wastewater

Info

Publication number: JPS586795U
Application number: JP1981099475U
Authority: JP
Inventors: 秀樹中川; 芳郎林
Original assignee: 荏原インフイルコ株式会社
Priority date: 1981-07-06
Filing date: 1981-07-06
Publication date: 1983-01-17

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 drawings]

：　　　第１図は従来例を示す縦断面図、第２図及び第
３図は本考案の各実施例を示す縦断面図である。！　　　１・・・槽壁、２・・・エアリフト管、３・・
・送気管、４゜４′・・・隔壁、５・・・傾斜隔壁、６
・・・媒体循環部、７．−［７′・・・媒体分離部、訃
・・集水樋、９・・・処理水流出管、１０・・・原水流
入管、１１・・・ドレイン管、１２１　　・・・ドレイ
ンバルブ、１３．１４・・・開口部、１５・・・１　　
媒体上昇部。: FIG. 1 is a longitudinal sectional view showing a conventional example, and FIGS. 2 and 3 are longitudinal sectional views showing each embodiment of the present invention. ! 1... Tank wall, 2... Air lift pipe, 3...
・Air pipe, 4゜4'... Bulkhead, 5... Inclined bulkhead, 6
...medium circulation section, 7. -[7'...Medium separation section, end...Water collection gutter, 9...Treated water outflow pipe, 10...Raw water inflow pipe, 11...Drain pipe, 121...Drain valve, 13 .14...opening, 15...1
Media riser.

Claims

[Scope of Claim for Utility Model Registration] 1. In a tank that has a raw water inlet and a treated water outlet and holds granular media for adsorption of microorganisms in suspension, the J end is above the water surface and the lower end is isolated from the bottom of the tank. A medium circulation part and a medium separation part are partitioned by a partition wall, an air lift pipe circulation mechanism is arranged in the medium circulation part, and at least one C opening is provided at an appropriate position in the partition wall, so that the medium circulation part and the medium separation part are separated by a partition wall. A biological treatment device for sewage, which communicates with a medium separation section and includes an inclined partition wall arranged above the opening on the side of the medium separation section so as to face downward toward the medium separation section. 2. The device according to claim 1, wherein the opening is in the form of a slit formed by arranging a plurality of the partition walls with gaps in the vertical direction. 3. The apparatus according to claim 2, wherein the inclined partition wall is provided at a lower end of an upper partition wall among the partition walls adjacent to each other in the vertical direction. = 4 The device according to claim 3, wherein the partition wall is cylindrical, and the inclined partition 1 wall is inverted conical. i5 The device according to claim 4, wherein the tank is cylindrical, and the partition walls are arranged concentrically: