JPH0575477B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sewage treatment device with a pump tank.

[Conventional technology]

Treated water from sewage treatment equipment is transferred to rivers,
When discharging wastewater to a discharge destination such as a roadside ditch, there is no problem if there is a sufficient water level difference between the sewage treatment equipment and the discharge destination, but if there is no water level difference or the water is on a reverse slope, a separate pump tank must be installed. be. In this case, the pump tank was made of FRP, as shown in Figure 3, or constructed of concrete on-site, as shown in Figure 4, but in either case, it was installed separately from the sewage treatment equipment. It was from.

[Problem that the invention seeks to solve]

The separately installed pump tank described above is buried separately from the sewage treatment tank and connected to the sewage treatment equipment through piping, which requires a great deal of cost and effort to install the pump tank, and it is also installed separately from the sewage treatment equipment. Since the pump tank is formed at the bottom of the body and has four circumferential side walls, a large amount of material is consumed and the pump is expensive.

The present invention has been made in view of the above drawbacks, and an object of the present invention is to provide a sewage treatment device with a pump tank that is easy to construct and inexpensive.

[Means for solving problems]

The structure of the present invention for achieving the above object will be explained using FIG. 1 and FIG. 2 corresponding to the embodiment.
In the sewage treatment device 1, which is made of synthetic resin such as FRP and is composed of an aeration chamber 4 filled with material, a sedimentation chamber 5 communicating with the lower part of the aeration chamber 4, and a disinfection chamber 6 having an outlet 7, A pump tank is formed on the outer side of the frame wall 8 on the side of the treated water outflow 7 of the sewage treatment equipment 1, the front surface facing the outside is formed as an open surface, a flange is provided around the opening surface, and the pump tank is made of synthetic resin such as FRP. 9 is connected and fixed, the outflow port 7 and the pump tank 9 are communicated with each other, and a drain port 13 is provided on the side wall of the pump tank 9 at a higher level than the treated water outflow port 7.
Pump 11 for internally discharging treated water to the outside of the system
We have taken technical measures to ensure that

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 and 2.

1 is an example of a sewage treatment device made of synthetic resin such as FRP and equipped with a sedimentation separation chamber 3, a contact aeration chamber 4, a sedimentation chamber 5, etc. for treating human waste or human waste and gray water together. The wastewater from the introduction pipe 2 is processed in the following order: a sedimentation separation chamber 3, a contact aeration chamber 4, a sedimentation chamber 5, and a disinfection chamber 6.

As shown in FIG. 1, 9 is an F.
This is a pump tank made of synthetic resin such as RP, and a flange is formed around the opening surface. A drain 13 higher than the outlet 7 of the sewage treatment device 1 is provided at the upper part of one of the three side walls, and a pump 11 linked to a level switch 10 is provided inside the tank 9. The pump tank 9 is
The opening surface thereof is brought into contact with the upper part of the frame wall 8 on the side of the outflow port 7 of the sewage treatment apparatus 1, and the sewage treatment apparatus 1 is attached by adhesion or bolting via an elastic packing. The treated wastewater is stored in the pump tank 9 from the outlet, and when the water level reaches high water level (HWL), the level switch 10 is turned on.
Then, the pump 11 in conjunction with the level switch 10 is activated and the treated water is removed from the system. Low water level (L.
WL), the level switch 10 turns OFF and the pump 11 stops.

If the treated water is to be discharged close to its destination, a discharge chamber 12 is provided in the upper part of the pump tank 9 as shown in Fig. 2 in order to reduce the pressure loss in the piping and to downsize the pump 11. A method can be taken to exclude it from the system.

〔Effect of the invention〕

The present invention provides a pump that is formed of a synthetic resin such as FRP, with a front surface facing the outside formed as an open surface on the outside of a body wall on the treated water outlet side of a sewage treatment equipment, and a flange portion formed around the opening. Since the tank is connected and fixed, the material used on one side of the conventional pump tank can be saved, the connecting pipe connecting the sewage treatment equipment and the pump tank is no longer required, and the installation work of the pump tank itself is reduced. It is possible to provide a sewage treatment device with a pump tank that is unnecessary, inexpensive, and easy to install.

In addition, since the sewage treatment equipment and pump tank are made of synthetic resin such as FRP, only the sewage treatment equipment can be mass-produced in advance, and when demand arises, it can be easily glued in a short time with the same type of adhesive. Management becomes easier, and even if there is no head difference between the pump and the discharge destination during on-site construction, or there is a reverse slope, the pump tank can be easily assembled and completed in a short period of time.

[Brief explanation of the drawing]

Figures 1 and 2 are schematic sectional views showing an embodiment of the present invention, Figures 3 and 4 are schematic sectional views showing a conventional embodiment, and Figures 3 and 4 are schematic sectional views showing a conventional embodiment. FIG. Explanation of symbols, 1...Sewage treatment equipment, 2...Introduction pipe, 3...Sedimentation separation chamber, 4...Contact vapor chamber, 5
...Sedimentation chamber, 6...Disinfection room, 7... Outlet, 8...
...Structure wall, 9...Pump tank, 10...Level switch, 11...Pump, 12...Drain room, 13...
...Drain port.

Claims (1)

[Scope of Claims] 1. A sedimentation separation chamber 3 having an inlet 2, a contact aeration chamber 4 filled with material, a sedimentation chamber 5 communicating with the lower part of the aeration chamber 4, a disinfection chamber 6 having an outlet 7, etc. In the sewage treatment device 1 made of synthetic resin such as FRP, the front surface facing the outside is formed as an open surface on the outside of the frame wall 8 on the side of the treated water outlet 7 of the sewage treatment device 1. A flange is provided around the periphery to connect and fix the pump tank 9 made of synthetic resin such as FRP, thereby communicating the outflow port 7 and the pump tank 9, and discharging the water to the side wall of the pump tank 9 at a higher level than the treated water outflow port 7. A sewage treatment device with a pump tank, characterized in that a port 13 is provided and a pump 11 is provided inside the pump tank 9 for discharging treated water to the outside of the system. 2. The sewage treatment device with a pump tank according to claim 1, wherein the pump tank is provided with a drainage chamber inside.