KR20140128498A - Precipitation vessel apparatus hybridized with filtration - Google Patents

Abstract

The present invention relates to a filtration multi-function sedimentation apparatus, which comprises an inlet for introducing wastewater and an outlet for discharging the precipitated solids, and a discharge port for discharging the solid- A sedimentation tank, a first mesh screen and a second mesh screen spaced vertically apart from each other in the sedimentation tank, and an auxiliary material, which is filled between the first mesh screen and the second mesh screen, The present invention provides a filtration multi-function sedimentation apparatus capable of filtering incoming suspended solids by the supernatant type filtration media.

Description

{PRECIPITATION VESSEL APPARATUS HYBRIDIZED WITH FILTRATION}

The present invention relates to a filtration complex-function precipitation apparatus for precipitating and removing solids from wastewater, and more particularly, to a filtration complex-function precipitation apparatus capable of effectively removing not only high-density precipitate solids but also low-density suspended solids.

Recently, industrial activities and consumption activities of human being have rapidly increased, and a large amount of industrial wastewater and domestic sewage have been generated. As a result, various environmental problems such as water pollution and corruption are caused. In particular, water pollution has become a big problem not only in Korea but also in other countries because it is closely related to human life. In order to limit the discharge of wastewater or to install purification facilities, Which is a strictly controlled system.

Generally, wastewater treatment consists of removing nutrients through biological processes, precipitating various solids in a settling tank, separating and discharging treated water, and the precipitated solids are transferred to a sludge treatment facility and treated.

Conventionally, however, there has been a problem in that floating solids can not be removed by relying solely on gravity in the process of precipitating solids. That is, in the solid material, not only precipitate solid material composed of high density organic material and inorganic material but also low density suspended solid material exists. However, if conventional solids are separated by using gravity alone, it is possible to remove precipitated solid material. However, It can not be helped. Also, since the settling rate of the solids is very slow unless a separate chemical is added, a long sedimentation time is required, and the sedimentation tank becomes large due to the increase of the residence time.

Particularly, as described above, the floating tongue which is not settled floats in the wastewater and is discharged together with the treated water. In this case, since the water quality of the discharged water deteriorates and reprocessing through other means is required, And the maintenance and management costs increase as well.

Accordingly, the present inventor has studied and developed a method for efficiently removing low-density solid matter by intentionally observing the problems of the above-described prior art.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a filtration and multi-function sedimentation apparatus capable of effectively removing suspended solids floating in a sedimentation tank, There is a purpose.

As means for solving the above-mentioned technical problem,

In the present invention, a cylindrical sedimentation tank is provided with an inlet for introducing wastewater and an outlet for discharging the precipitated solids, and a discharge port for discharging the solid-liquid separated treatment water. A first mesh screen and a second mesh screen spaced apart in the vertical direction inside the settling tank; And a secondary mesh screen filled between the first mesh screen and the second mesh screen, wherein the floating solid that has flowed into the settling tank is filtered by the secondary filtration media Thereby providing a precipitation device.

In this case, the inlet may include a first inlet that extends in the horizontal direction with an internal angle of 30 degrees or less with respect to the tangential direction of the settling vessel, and a second inlet that extends in the opposite direction to the other side of the first inlet have.

In this case, the lower end of the settling tank may be tapered.

In this case, the floating filter medium may be a plastic foam material or a ceramic foam material.

According to the present invention, since the supernatant type filter material is provided on the upper part of the sedimentation tank, it is possible to filter fine solids floating without settling, thereby improving the processing speed and treatment efficiency of the wastewater.

1 is a sectional view of a filtration multi-function sedimentation apparatus according to a preferred embodiment of the present invention,
FIG. 2 is a sectional view showing the structure of an inlet of the filtration multi-function sedimentation apparatus shown in FIG. 1,
3 is a view showing an O-ring installed state of the filtration multi-function sedimentation apparatus shown in FIG. 1;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly explain the present invention, parts not related to the description are omitted, and similar parts are denoted by similar reference numerals throughout the specification.

FIG. 1 is a cross-sectional view of a filtration multi-function sedimentation apparatus according to a preferred embodiment of the present invention, FIG. 2 is a sectional view showing an inlet structure of the filtration multi-function sedimentation apparatus shown in FIG. 1, FIG. 5 is a view showing an O-ring installation state of the multi-function sedimentation apparatus. FIG.

As shown in FIG. 1, the filtration multi-function sedimentation apparatus 100 according to a preferred embodiment of the present invention includes a sedimentation tank 110, a mesh screen 120, and an adsorbent material (not shown).

The settling tank 110 is formed in a substantially cylindrical shape for inflow of wastewater and discharge of treated water. The sedimentation tank 110 may include a first body 110a and a second body 110b which are fastened to each other by bolts 130. The upper part of the first body 110a is provided with a discharge port And a discharge port 113 for discharging the sedimented solid material is formed at a lower portion of the second body 110b.

In the present invention, the lower end of the sedimentation tank 110, more specifically, the lower end of the second body 110b has a tapered shape toward the downward direction in order to maximize the sedimentation effect. That is, the lower end of the second body 110b is formed in the form of a funnel, and an outlet 113 is formed at the apex of the funnel to discharge the precipitated sludge. In this case, the height of the tapered portion of the second body 110b is preferably as high as possible to maximize the sedimentation effect.

2, the inlet 112 is formed above the tapered portion of the second body 110b. In the present invention, the inlet 112 is divided into a first inlet 112a and a second inlet 112b, And two inlet ports 112b. Specifically, the first inlet 112a extends horizontally with a tangential direction of the second body 110b and an interior angle of 30 degrees or less, and the second inlet 112b is extended horizontally with respect to the other side of the first inlet 112a Direction.

In this case, for convenience of description, only two inlet ports 112 are illustrated. However, the number of the inlet ports 112 is not limited to this, and it is preferable that a plurality of the inlet ports 112 are formed in the same form as possible. In addition, it is preferable that the inlet 112 has a large inner diameter as much as possible and is naturally connected to the inner wall of the settling tank 110.

Since the inlet 112 is disposed in a substantially helical shape with respect to the settling tank 110, the wastewater supplied through the inlet 112 flows naturally along the inner wall of the settling tank 110 . In addition, since the inlet 112 has a large diameter and is installed in a plurality of symmetrical structures, the flow velocity at the time of introducing the wastewater can be reduced, so that the solid-liquid separation can be performed quickly and stably.

The mesh screen 120 is provided inside the sedimentation tank 110 to prevent the separation of the floating type filter media. Specifically, the mesh screen 120 includes a first mesh screen 120a and a second mesh screen 120b which are vertically spaced apart from each other in the sedimentation tank 110, 2 to 1/3 height. Accordingly, the first mesh screen 120a prevents the filter material from being pushed out of the settling tank 110 at the upper end of the settling tank 110, and the second mesh screen 120b prevents the filter media Thereby preventing mixing with the precipitate.

In this case, the first mesh screen 120a and the second mesh screen 120b are installed in the sedimentation tank 110 by using the ring cartridges 132 and 133. [ Specifically, the first mesh screen 120a is interposed between a pair of ring cartridges 132 that are overlapped with each other and is coupled to the uppermost end of the first body 110a using bolts 131, and a second mesh screen 120b are also coupled between the first body 110a and the second body 110b in the same manner. 3, the first body 110a and the second body 110b are connected to each other at a joint portion between the first body 110a and the ring cartridge 132 and at a joint portion between the first body 110a and the ring cartridge 133 and the second body 110b. (134) is inserted to prevent leakage of wastewater.

In order to prevent the corrosion of the mesh screen 120, it is preferable that the mesh screen 120 is made of stainless steel. Of course, be smaller than the particle size of the particles.

The extraordinary filter medium is for filtering floating solids and is filled between the first mesh screen 120a and the second mesh screen 120b. In the present invention, pellets, foam materials, or ceramic foam materials of a floating plastic material can be used as the floating material.

In this case, the smaller the particle size of the superficial filter medium is, the smaller the filtration function is, and the filling volume is a space formed between the first mesh screen 120a and the second mesh screen 120b To about 80% to 90%.

The configuration of the filtration multi-function sedimentation apparatus according to the preferred embodiment of the present invention has been described above. Hereinafter, the operation of the filtration multi-function sedimentation apparatus according to the preferred embodiment of the present invention will be described.

First, the wastewater supplied from the outside flows into the settling tank 110 through the inlet 112. Subsequently, the sedimentation solids contained in the wastewater are settled and discharged through the outlet 113, and the suspended solids rise together with the wastewater to pass through the superficial media. In this process, suspended solids are filtered by the supernatant filter material, and the treated water filtered by the suspended solids is discharged to the outside through the discharge port 111.

In this case, for more efficient operation, it is desirable that the sediment is stacked at a height of 10 to 20 cm or more from the position of the inlet 112. In this case, when the solid material contained in the wastewater that is newly introduced through the inlet 112 After the primary filtration by the precipitated solids, the filtration effect can be further improved because it is secondary filtered by the supernatant filtration media.

The preferred embodiments of the present invention have been described in detail with reference to the drawings. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

Therefore, the scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning, range, and equivalence of the claims are included in the scope of the present invention. .

100: filtration complex function sedimentation apparatus 110: sedimentation tank
110a: first body 110b: second body
111: outlet 112: inlet
112a: first inlet 112b: second inlet
113: outlet 120: mesh screen
120a: first mesh screen 120b: second mesh screen
130, 131: bolts 132, 133: ring cartridge
134: O ring

Claims (4)

A cylindrical sedimentation tank having an inlet for introducing the wastewater and an outlet for discharging the precipitated solids, and a discharge port for discharging the solid-liquid separated treatment water;
A first mesh screen and a second mesh screen spaced apart in the vertical direction inside the settling tank; And
And a plurality of second mesh screens disposed between the first mesh screen and the second mesh screen,
Characterized in that the floating solid that flows into the settling tank is filtered by the floating filter medium. The method according to claim 1,
Wherein the inlet includes a first inlet formed in the tangential direction of the settling tank and extending in the horizontal direction with an internal angle of 30 degrees or less and a second inlet formed on the other side of the first inlet in an opposite direction, Filtration complex function precipitation device. The method according to claim 1,
Wherein the lower end of the settling tank is tapered. The method according to claim 1,
Characterized in that the floating particulate material is a plastic foaming material or a ceramic foam material.

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