JPS58205589A - Treatment tank combined with large sized concrete set for treatment of night soil and miscellaneous waste water - Google Patents

Abstract

PURPOSE:To complete a large-sized treatment tank for sewage in a short time, by constituting the same of a tank provided with middle and fine meshed screens and ruggedness on the circumferential wall under the water surface in the 1st set body, a tank provided with plates stuck with living things in the 2nd set body, etc. CONSTITUTION:Sewage is put into the 1st set body 1 from an inflow pipe 2, and the solid materials in the sewage are removed with a middle meshed screen 3. The accumulated solid materials are scraped onto a fine meshed screen 4 and are drained, whereafter said materials are removed. The BOD and COD in the sewage can be removed by 40% in the 1st set by the ruggedness 7 (coral sand, etc.) stuck with living things provided on the wall under the water surface in the tank body. Many plates 18 provided with much ruggedness on the front and rear and stuck with living things are disposed in the biological treatment tank in the 1st biological treatment tank 14, and much ruggedness 20 is provided on the circuimferential wall under the water surface. Air is fed from an air diffusion pipe 17 to the plates 18 to propagate bacteria, whereby the BOD and COD in the sewage are removed by 60%.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention combines a large conocrete set tank for treating PM urine and gray water.

1. A large size = 1/crete set combination treatment tank for treating frozen ground and gray water, which is characterized by treating pot urine and gray water. Currently, large sewage treatment tanks are built on-site, which takes a lot of time and costs. With this invention, the era of on-site casting passed;
By using the J/Crete Nananodo L method, ``1G11Wi can be completed in one-tenth of the current time.The cost is one-third of the current cost, making it a concrete set combination treatment tank that can be made significantly cheaper.

Sewage is poured into the first seventh throat main body of 1 from the water pipe 2, and the solid matter in the sewage is folded up with the medium-mesh screen of 3, and the accumulated solid matter is swept through the fine-mesh screen of 4. Drain the water and take it out. The sewage flowing from the scree 7 enters the flow rate adjustment tank 5, and air is dispersed into the sewage from the aeration pipe 6 at the bottom.
It breeds bacteria. 1 The wall of the main body of the water level gauge has 8 objects attached 7 unevenness i ′Ij;
By attaching the shell embedding), 40% of BOD and COI) in the wastewater can be removed in the 17th nozzle. The sewage in the flow III adjustment tank 5 is
From the tank +1 VC, the gutter with a roll of 12, the L, and the spray port 15, the first biological treatment tank +4υζ is in the biological treatment tank where there are people.
On the back side of the signboard 19 with lots of living creatures, a board with many irregularities (coral sand, embedded oyster shells) is attached to the H, and on the surrounding area under the water surface, the irregularities 20 of the stream 111 are installed (coral sand, carcasses). IB embedding) Attach the air diffuser +71- to the bottom of the tank, send air from the trachea 16, and connect the air from the air diffuser to the biofouling plate I8.
Inside i7. v.

Propagating organisms (bacteria) and reducing BOD in sewage,
COD can be eliminated by 60%. 1st biological treatment ff1
The sewage that has been treated with
There are people in the biological treatment tank 22, and the treatment is carried out in the same way as in the first biological treatment tank. The water quality at this point is 80% BOD and C'OD removal rate. Second beef processing tank 22. A large amount of sewage is discharged [
The scum comes out from the 26th gutter through the outlet 1130 in the scum dispersion chamber 2 ( ) in the settling tank 28 . Snow J1 accumulated on the water surface of the settling tank 28. is 34 scar 4゛, return pipe 35 from intake 11
The 1st. The sewage in the middle of the sedimentation tank to be treated again is poured onto the water surface from the hole 45 above Ska A+tll.

The water flows from the overflow weir 32 to the gutter (3). It comes out from the sewage outlet 1138, is sterilized with disinfectant 391τ, is sterilized 1+, passes through the disinfection tank 40, and is discharged into the sewer from the drain pipe 46. Sedimentation tank 28
The sludge accumulated at the bottom of the sludge is returned to the flow rate adjustment tank 5 in the first set through the sludge return pipe '36, and is treated again to this frozen ground) and gray water. Treatment tanks shorten the construction period, are inexpensive, and reduce BOD in wastewater, 2
Frozen ground and gray water treatment large shift crete set combination treatment tank that can reduce 50W to 10- or less

[Brief explanation of drawings]

Claims (1)

[Scope of Claims] A tank in which a scree 73 has medium and small diameters 4 and unevenness 7 (embedded with coral sand and oyster shells) on the wall around the water surface F in the first human body, on the water surface 1. Eye meter, 20 unevenness on the surrounding wall under the water surface in the 2nd seventh throat body (coral sand, force 4
A tank with biofouling plate I8 attached inside a tank with biofouling plate I8 attached. The third set is a large-sized concrete/crete set combination treatment tank for treating frozen ground and gray water, with a sedimentation tank 28°, disinfection tank 40°, and sludge tank 41 installed in the main body.