JPS59179192A - Waste water treating apparatus - Google Patents

Abstract

PURPOSE:To perform solid-liquid separation and purification of waste water effectively by providing air-dispersing pipes in an aeration chamber to replenish microorganisms with oxygen by the supply of external air and to give whirl motion to the waste water. CONSTITUTION:A treating tank is separated by a partition plate 2 to an aeration chamber 3 and a sedimentation chamber 4. A communication section 5 for communicating the liquid in the aeration chamber with the sedimentation chamber 4 is provided to the central part at the top of the partition plate 2. Another communication section 9 is provided between the sedimentation chamber 4 and a sterilization chamber 8, and a discharging section 10 is provided to the sterilization chamber 8. At the bottom of the aeration chamber 3, is provided an air- dispersing pipe 13 horizontally and displaced nearer to one side of the chamber, extending in the direction crossing vertically with contact plates 12. A compressor 14 is connected to the air-dispersing pipe 13.

Description

Detailed Description of the Invention This #I relates to a device for total treatment and purification of wastewater using a combination of a contact aeration method and a chemical method, and in particular, it promotes both solid-liquid separation and purification actions, and is highly efficient, compact, and inexpensive. The present invention provides a wastewater treatment device that can

The embodiments of the present application will be described in detail below with reference to the drawings. (1) is a processing tank made of steel plate, FRP, or the like.

The bottom plate (1) a is slightly inclined forward. Is (2) the treatment tank (1)? A partition plate that divides left and right to separate an aeration tank (3) and a settling tank (4), and a distribution plate is placed at the center of the upper part of the partition plate to allow tL from the aeration tank (3) to flow into the settling tank (4). A section (51) is provided. (6) is a storage tank having a disinfectant (disinfectant (8) in which power is reserved) entirely inside, and is integrally provided on the side of the sedimentation tank (4). , between the sedimentation tank (4) and the quenching tank (8), there is a communication part (5) that communicates between the upper parts of the sedimentation tank (4) and the quenching tank (8) at a lower position than the entire flow part (5).
9), each of the disinfection tanks (8) is provided with an outflow portion (1 (J)) through which all the aqueous liquid after passing through the disinfection tank (8) flows out into the storage tank (6). 011 is a water level adjustment device that controls the drainage pump 1 (to be described later) to adjust the water level in the storage tank (6), and detects the 7 upper and lower water levels, respectively.
Pair of sensing elements 01! a, (11To is provided. (121 is made of non-woven fabric, etc., with a thickness of about 10
This is the contact plate of pine) 8, which has all the leakage holes as coarse as ruLI, and this is the contact plate mentioned above. ! (3) and sedimentation tank (4), the upper part of which protrudes above the curve.

A sheet to several dozen sheets are arranged at the entire consumption interval so that the lower part is away from the bottom of the treatment tank (1) (1) a and the tank is divided into all sections according to the liquid transfer method InJ. . (■& is a diffuser pipe installed horizontally at the bottom of the aeration tank (3) with a 6-deep contact plate (VC grinding plate 77 in the direction orthogonal to 12+) and one side. The compressor ■ is connected. 05) is the inflow pipe that flows wastewater into the h1 construction aeration tank (3), (1G+ is the amount of wastewater flowing into the inflow pipe (15) from the flocculant tank wholesaler. A constant flow shadow pump (18 + discharge valve 209 used to periodically discharge the precipitated solids in the aeration tank (3))
1 is a discharge valve used to periodically discharge the settled solids in the sedimentation tank (4); 2 is the discharge valve (18! + ar
'+ and the outflow pipe C () provided at the bottom of the storage tank (6)
are connected to the discharge pump (221) by valves of the discharge pipes (21), respectively. (23) is an air vent pipe provided at the upper part of the aeration tank (3), and (24+ is the contact plate (121)). It is a presser.

Then, sewage from organic screens in factories, toilets, etc. flows into the bathhouse (3) through an inflow pipe (05),
.

At this time, a predetermined amount of a coagulant, such as polyaluminum chloride, is automatically mixed into the wastewater by the pump (16) in proportion to the amount of inflowing wastewater, for example, about 200 p, p, m.

KH in the above-mentioned air vent N (3), large waste water is transferred to air diffuser pipe 031
The air ejected from the tank (3) is dissipated, mixed with the air, and the two air diffusers (U3) are installed near the side of the aeration tank (3). L for the rise of bubbles gushing out! At the previous position of contact root contact 1, move the waste water upward.

As a result, the waste water flows downward at the rear position of the contact plate 02, and as a result, a swirling flow is generated between each contact plate (121) as shown in FIG. 'jti's activated sludge floats and contact #
(Clogging caused by excessive biological layer adhering to the contact plate Q21 is prevented, and the mixing of the flocculant and wastewater is promoted to increase the flocculation effect, and the contact plate Q21 and microorganisms in the liquid are Oxygen is supplied to promote its growth.The contact plate <121 has two coarse mesh-like small holes, the upper part of which protrudes above the liquid level, and the lower part of which is connected to the bottom plate (island) of the processing chamber (1). At the same time, several to dozens of plates are placed in the aeration tank (3) so as to divide the whole tank in the direction of the partition plate, so that the wastewater is separated and independent between the contact plates αi4. The liquid flows sequentially through the liquid chambers formed in the direction of the partition plate (2), and in the process, the floating substances pass through the contact plate 02... and the filtrate passes through the contact plate 02! The fruit is decomposed into carbon dioxide gas and water by the microorganisms present in the fruit, and the contact plate 0
As it rotates between 2 and 3, it increases in size and weight, and a part of it sinks to the bottom of the monk monk (3).

In this way, the waste water and sewage that flowed into the inflow pipe (15) and into the aeration tank (3) were purified sequentially as they moved toward the partition plate (2), and then moved to the upper part of the partition gy and +21. flows into the sedimentation tank (4) from the flow section (5). In the sedimentation tank (4), there is also a contact plate 02 with mesh-like small holes arranged in the same way as described above. Sedimentation takes place to promote solid-liquid separation and purification.

The solid-liquid separated water (70), which has been sufficiently purified, flows into the disinfection tank (8) through the communication part (9), receives disinfection action, and then enters the storage tank (6). is stored in When the water level rises in the storage tank (6) and reaches the upper detection element 115, the water level adjustment device old 1 operates to drive the drain pump (221), and the water in the storage tank (6) is drained. The water is discharged to the outside through the water outlet pipe (2+11') or used as reclaimed water, and stored?li/
P, J (When the water level in 61 decreases due to the drainage pump (221), the lower search element old rbKL9
The water level adjustment device aυ operates and the drainage pump @ is driven #i.
stop.

As described above, according to the present application, a diffuser pipe is provided in the aeration chamber to supply oxygen to microorganisms by supplying outside air, and
Since the structure is configured to give a swirling flow to the aqueous liquid, microorganisms are multiplied, which promotes the decomposition of the filtrate and also prevents the landing of large-sized biological pigeons on the contact plate. Is the filtration effect fully increased 2 and the contact plate of the plate? Due to this arrangement, the filtration action and sedimentation action are repeated, and the solid-liquid separation and purification action are performed efficiently. Therefore, it is effective for high-load applications, and can be obtained in a small and inexpensive manner. Since the structure is such that all of the fruit is supplied to the inside of the cell, purification is carried out by its aggregation effect even in the initial stage when microorganisms do not grow sufficiently4), and the purification effect is accelerated as a whole. Have sex.

[Brief explanation of drawings]

The drawings show an embodiment of the headquarters, with FIG. 1 being a vertical front view, FIG. 2 being a cross-sectional plan view, and FIG. 3 being a vertical side view. In the figure, (1) is the storage tank, (2j is the partition machine, (3) is the aeration tank, (4) is the sedimentation tank, (51 is the distribution section, (6) is the storage tank 2 (8) is the disinfection tank) , (9) is the continuous tracing part, 00) is the outflow part,
(12I is the contact plate, 031 is the air diffuser - IJ4JItl coylv tube, Q51 (rl m entry pipe, (1,61U
Constant flow type pump, A is a flocculant tank. Patent Sennin Goko Seisakusho Co., Ltd. Figure 1 ~ 117 V 1r Figure 3 E

Claims (3)

[Claims] (1) A contact plate with mesh-like leak holes is placed in the aeration tank so that its upper part protrudes above the liquid level and its lower part moves away from the bottom of the aeration tank, dividing the entire tank in the direction of liquid transfer. A wastewater treatment device characterized in that a diffuser pipe is installed at the lower part of the air tank, extending in a direction directly opposite to the contact plate, and biased toward one side with a force of λ. (2) A contact plate with mesh-like leak holes inside the aeration tank. The upper part protrudes from the liquid level Lp, and the lower part is separated from the bottom of the aeration tank, dividing the entire tank in the direction of liquid transfer. A wastewater treatment system comprising: an aeration pipe extending in the direction of the aeration tank; device t. (3) The treatment tank is partitioned by a partition plate to completely form an aeration tank and a sedimentation tank, and a contact plate is provided with a flow section at the top of the partition plate and has two mesh-like leak holes in the valley tank. ? The upper part protrudes beyond the liquid level, and the lower part is separated from the bottom of the processing tank and is arranged so as to partition the entire tank in the direction of liquid transfer. A wastewater treatment device characterized by being equipped with an aeration pipe that extends in a direction facing the contact plate and is offset to one side.