KR20040099593A - Supernatant Liquid Decanter In The Sequencing Batch Reactor - Google Patents

Abstract

PURPOSE: To provide an apparatus for decanting supernatant liquid, which is able to stably decant the supernatant liquid with a simple structure and is easy to be maintained. CONSTITUTION: A supernatant liquid inlet pipe (8) that is connected to a discharge valve by a wrinkled pipe (4) is coaxially connected to a floating (1) that is able to control buoyancy. In an inlet of the inlet pipe, a plate check valve (10) is supported by elasticity of a spring (9) so that the plate check valve is opened or closed by opening or closing of the discharge valve.

Description

Supernatant Liquid Decanter In The Sequencing Batch Reactor

The present invention relates to a symbol water discharge device of a continuous batch reactor, and more particularly, a symbol water discharge device capable of forcibly discharging only symbolic water purified from waste water by using a siphon (Siphon) suction force. It is about.

In general, in the continuous batch reactor, the supernatant discharge device should not discharge the scum layer formed on the water surface, and at the same time, the height of the discharge port should be appropriate and the discharge flow rate should be appropriate to prevent the sludge from being deposited. do.

This is to prevent the microorganisms in the reactor from leaking out, and to stably discharge only the purified symbol water.

Devices that are commercially available to meet these requirements are complicated in structure or require power for control, such as air vent type discharge device, diaphragm type discharge device and arm type. Has been adopted, but the air vent type discharge device is applied as a basic principle of operation, by controlling the operation of the solenoid valve opening and closing, by the operation of the waste water treatment device and additional power equipment is required. There is a problem of economic burden.

In addition, the arm-type discharge device is operated by the power unit is a discharge gutter is discharged in and out of the reaction tank, in the discharge process descends to the limit depth at a speed determined by the power unit in the discharge process, the symbol water is to be discharged Bar and high cost, there is a problem that is greatly burdened economically.

Therefore, there has been a demand for a discharge system that is simple in structure and operation, economical, can be normally discharged even in the event of a failure, can stably discharge treated water, and is easy to maintain.

The present invention has been made to solve the problems described above, the object of the present invention is to satisfy the stable symbol water outflow conditions with a simple structure, the convenience and durability of operation, the ease of maintenance, stable operating conditions, economical efficiency, etc. It is to provide a symbol water discharge device that can satisfy.

In order to achieve the above object, the present invention is a symbol water discharge device of a continuous batch reactor, the discharge valve and the corrugated pipe inlet pipe connected to the discharge valve is installed on the outer bottom of the reactor so that the floating on the appropriate height of the surface according to the weight. It is connected coaxially with buoy to adjust buoyancy, and the inlet pipe has a plate-shaped check valve is supported on the spring structure, the plate-type check valve with or without the siphon type suction force function according to the opening and closing of the discharge valve It is made to open and close.

1 is a view from the front of a state in which a supernatant discharge device is installed in a continuous batch reactor of the present invention;

2A and 2B are views of FIG. 1 when the water surface is high and low from the side;

3 shows the main parts of the present invention.

4A and 4B are cross-sectional views showing the opened and closed state of the main part of the present invention.

※ Explanation of codes for main parts of drawing

1: buoy 2: coaxial

4: corrugated pipe 7: discharge valve

8: inlet tube 9: spring

10: Plate check valve

Hereinafter, described in detail by the accompanying drawings of the present invention.

1 is a view seen from the front of a state in which a supernatant discharge device is installed in a continuous batch reactor of the present invention, Figures 2A and 2B is a view of Figure 1 when the water surface is high and low, Figure 3 4A and 4B are sectional views showing the opening and closing state of the main part of the present invention.

As shown, in the symbol water discharge device of the continuous batch reactor, the discharge valve 7 and the corrugated pipe 4 connected to the corrugated pipe 4 installed on the lower part of the reactor outside the appropriate height of the water surface according to the weight It is connected to the buoy (1) and the coaxial to adjust the buoyancy so as to float in, the inlet pipe (8) of the inlet pipe check valve 10 is made of a structure that is supported on the spring (9) the discharge valve ( 7) according to the opening and closing of the siphon type suction force function is made to open and close the plate check valve (10).

Reference numeral 3 is a guide rail, 5 is a corrugated pipe support, and 6 is a stopper.

Referring to the operation of the present invention configured as described above is as follows.

First, in order to be sequentially connected to the first reactor, the second and the third reactor, the symbol water is sequentially introduced into the reaction tank is oxidized, cleaned and cleaned by the microorganisms in each reactor and discharged to the next process step, respectively The discharge valve 7 is kept closed at the time of the oxidation and purification treatment of the wastewater introduced into each reactor. Then, the symbol water in the inlet pipe 8 is in a stagnant state, and since the suction pressure is extinguished, the plate check valve 10 closes the inlet of the inlet pipe 8 by the finger of the spring 9.

In this state, the oxidation and purification process is performed, and the discharge valve 7 is opened at the stage where the sludge is immersed to be flowed to the next step. Then, the suction power of the siphon-type function is generated by the movement of the symbolic water in the inlet pipe 8, so that the plate check valve 10 at the inlet pipe 8 is inhaled and the spring 9 is neutralized and opened to inhale the symbol water. , Discharge.

At this time, when the wastewater treatment amount is high and low water, that is, there is a risk of sludge discharge according to the high and low suction pressure, in consideration of this, the opening and closing state of the discharge valve 7 should be adjusted so as not to be discharged.

As described above, the present invention is a device for discharging symbolic water treated in a continuous batch reactor, which satisfies stable symbolic outflow conditions with a simple structure, ease of operation and durability, ease of maintenance, stable operating conditions , Economic efficiency, etc. can be satisfied.

Claims (1)

In the symbol water discharge device of the continuous batch reactor, the discharge valve 7 and the corrugated pipe 4 connected to the discharge valve 7 installed in the lower part of the reactor are buoyant to float at the proper height according to the weight. It is connected coaxially with the adjustable buoy (1), and the inlet of the inlet pipe (8) is made of a structure in which the plate check valve 10 is supported on the spring (9) to open and close the discharge valve (7) According to the siphon-type suction force function, the discharge device, characterized in that the plate-shaped check valve 10 is made to open and close.