KR101416070B1 - Phosphorus disposal apparatus of wastewater - Google Patents

Abstract

The present invention relates to a phosphorus collection device for a waste water purifying facility, and more specifically, to a phosphorus collection device for a waste water purifying facility capable of continuous operation to obtain excellent economic feasibility, efficiency, and use satisfaction by continuously back-washing a ceramic carrier using bubbles while effectively collecting the phosphorus from introduced water using the minimum space and the minimum facility by allowing the phosphorus contained in the ionic components or fine flux of the introduced water to simultaneously and continuously pass an agglutination reaction process using chemicals, a flotation process, and a filter adsorption process in a simple processing tank.

Description

Technical Field [0001] The present invention relates to a PHOSPHORUS DISPOSAL APPARATUS OF WASTEWATER

The present invention relates to a phosphorus recovery device for recovering phosphorus contained in various wastewater, and more particularly, to a phosphorus recovery device for recovering phosphorus contained in various wastewater, It is possible to continuously recover the phosphorus in the influent water by the minimum space and minimum equipment while continuously performing the back washing of the ceramic carrier by the bubble, And more particularly, to a phosphorus recovery apparatus for a wastewater purification facility that is excellent in economy, efficiency, and use satisfaction.

Generally, when nitrogen and phosphorus components contained in various wastewater are discharged into a river, serious environmental pollution is caused. Therefore, the nitrogen and phosphorus components contained in various kinds of wastewater are recovered to a predetermined level or lower by a separate purification facility and discharged.

Particularly, there are three methods of recovering phosphorus components from various types of wastewater, namely, a coagulation sedimentation method, a filtration adsorption method, and a membrane separation method using a microfilter.

The coagulated sedimentation method is a method of recovering fine floccules containing the phosphorus component of influent water by flocculating and precipitating. Since the specific gravity of the fine floccules is low and sedimentation is poor, a large amount of chemicals are used for flocculation, The sludge is generated in a large amount, and a large installation area is required due to the flocculation tank and the water surface area.

In addition, the filtration adsorption system is a system in which influent water is filtered and adsorbed by a filter material to recover phosphorus components, which requires filtration of the filter material and backwashing for removing foreign substances adsorbed, Short and frequent replacement is required, and a large amount of pollutants are contained in the washing water during backwashing, thus requiring reprocessing.

In addition, the membrane separation method using the microfilter is a method in which influent water is filtered and adsorbed by a filter to recover a phosphorus component, a large amount of coagulation agent is required, and a backwash for filtering and adsorbing sludge And the reprocessing of the backwash water is required, and the efficiency of treatment is deteriorated due to frequent clogging of the filter.

That is, each of the above conventional methods has a limitation in effectively recovering the ionic components of the wastewater and the phosphorus components contained in the fine flocs.

Further, since the sludge recovery process and the backwash process are required in addition to the phosphorus recovery process, the continuous operation is not performed and a large number of treatment tanks and water tanks are required, and the facilities are complicated and the installation area is required wide. There was a problem of inefficiency and inefficiency.

KR 1004067 B1

Disclosure of Invention Technical Problem [8] The present invention has been made to solve all the problems of the prior art described above, and it is an object of the present invention to provide a method and apparatus for separating a phosphorus component contained in an ionic component or fine flocs of an influent into a single treatment tank, The present invention has an object to provide a new concept of a recovery apparatus for a wastewater purification apparatus capable of providing economical efficiency and efficiency efficiently by continuously performing filtration adsorption processes at the same time, thereby effectively recovering phosphorus of the influent water by a minimum space and a minimum facility.

The present invention has been made to solve the above problems

A treatment tank through which inflow water flows into an inlet formed at one side;

An agglomeration reaction unit located in the interior of the treatment tank for agglutinating and reacting micro-flocs containing phosphorus in the influent water with an agglutinating agent;

A floatation separating section for floating flocculating the floated float in the inflow water through the flocculation reaction section; And

A filtration adsorbing unit which adsorbs the coagulated flock settled in the influent water having passed through the flocculation reacting unit with the filter material and then filters only the treated water from which the phosphorus has been removed;

A discharge port located at a lower portion of the treatment tank; And

And a treated water discharge port connected to the discharge port and located at the other side of the treatment tank,

The inflow water flowing into the inlet port sequentially passes through the flocculation reaction section, the floating separation section and the filtrate adsorption section, and phosphorus in the influent water is removed, and after passing through the discharge port, through the treated water outlet port located on the other side of the treatment tank And is discharged from the waste water purification apparatus.

Preferably, at one side of the processing tank, a coagulating flue outlet is formed adjacent to the inlet and through which the coagulating flue is discharged.

Preferably, the phosphorus recovery apparatus for the wastewater purification apparatus further comprises: a bubble supply pipe communicating with the filtrate adsorption section; And a bubble generator for supplying the treated water discharged from the discharge port to the bubble supplying pipe, wherein the bubble generating unit is configured to circulate a part of the treated water to the filtrate absorbing unit, The fine bubbles and the coagulation flakes are separated from each other by floating the bubbles to prevent backwashing of the filter medium or leakage of the phosphorus through the gap of the filter medium.

Preferably, the flocculation reaction unit includes: an inner cylinder positioned at a central portion of the treatment tank and opened at both sides; A "U" -shaped outer tube surrounding the inner cylinder so as to form an ascending discharge path spaced from an outer surface of the inner cylinder; A stirring blade which is located inside the inner cylinder and rotates by a driving motor located at an upper portion of the treatment tank to mix the flocculant with the influent water; And a skimmer disposed at an upper portion of the treatment tank adjacent to the discharge port and discharging the coagulated flakes, which are floated and separated by rotation, to the discharge port.

Preferably, the filter medium is a solid ceramic layer which is heated after adding aluminum to a mixture of clay and clay, and the diameter of the ceramic layer is 5 to 10 mm.

The phosphorus recovery device for a wastewater purification system according to the present invention is characterized in that in a single treatment tank, the ionic components contained in the influent water or the phosphorus components contained in the fine flocs are simultaneously subjected to a coagulation reaction, a float separation, Since the ceramic carrier is continuously backwashed by the occurrence of bubbles as well as bubbles, continuous operation is possible, and the floating of the micro-flakes adsorbing and growing on the cohesive flocs or the ceramic carrier by the bubbles is separated and the pores of the ceramic carrier are blocked The discharge efficiency of the ionic component of the influent water or the phosphorous component contained in the fine flocs is high due to the minimum space and the minimum equipment.

In addition, the phosphorus recovery device for the wastewater purification apparatus according to the present invention prevents flotation of fine flocs adsorbed and grown on a coagulated fl ow or ceramic carrier by bubbles and blocking the pores of the ceramic carrier to prevent discharge of ionic phosphorus, high.

Fig. 1 is a front sectional view of the present invention,
2 is a plan sectional view of the present invention,
3 is a schematic cross-sectional view showing the flocculation reaction unit of the present invention, and Fig.
4 is an operational state diagram of the present invention.

The components constituting the phosphorous recovery apparatus for the wastewater purification apparatus of the present invention may be used integrally or individually. In addition, some components may be omitted depending on the usage form.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, the definitions of these terms should be described based on the contents throughout this specification.

1. Description of components

1 to 4, the waste water purifying apparatus 100 for collecting wastewater according to an embodiment of the present invention includes a processing tank 10 into which inflow water flows into a charging port 11 formed at one side, 10, a flocculation reaction unit 20 for flocculating and reacting the micro flocs containing phosphorus in the influent water with an flocculant, a flotation separation unit 20 for flocculating flocculated flocs floating in the inflow water via the flocculation reaction unit 20 And a filtration adsorption unit 40 for adsorbing the coagulated flocs settled in the inflow water through the flocculation reaction unit 20 with the filter material 45 and then filtering only the treated water with the phosphorus removed.

The inflow water flowing into the inlet 11 of the phosphorus recovery device for the wastewater purification apparatus according to an embodiment of the present invention continuously passes through the flocculation reaction section 20, the floating separation section 30, and the filtration and adsorption section 40 Through the discharge port 12 located at the lower portion of the treatment tank 10 and then discharged through the treatment water outlet 17 located at the other side of the treatment tank 10 as treated water. That is, in the present invention, phosphorus contained in the influent water is recovered while simultaneously performing the flocculation reaction, flotation separation and filtration adsorption process of the influent water in the treatment tank which is a single reactor.

In addition, a coagulating flue outlet 13 is formed at one side of the treatment tank 10 so as to be adjacent to the inlet 11 to discharge the coagulated flakes.

In the waste water purification apparatus for a wastewater purification apparatus 100 according to an embodiment of the present invention, the filtration and adsorption unit 40 is supported by a filter medium installation plate 46 formed at a lower portion of the treatment tank and the filter medium installation plate And a filter material 45 laminated on the filter medium mounting plate at a predetermined thickness.

In addition, the phosphorus recovery apparatus 100 for a wastewater purification apparatus according to an embodiment of the present invention includes a bubble supply pipe 52 communicating with the filtrate adsorption unit 40 and a bubble supply pipe 52 And a bubble generator 55 for supplying the bubble generator 55 to the bubble generator 50. In the recovery apparatus for waste water purification equipment according to the embodiment of the present invention, the bubble generator 50 recirculates part of the treated water to the filtrate adsorption unit 40, while supplying bubbles into the floating separation unit, Flushing and separating the fl ash while preventing backwashing of the filter material 45 or outflow of phosphorus through the gap of the filter material 45.

The flocculation reaction section 20 is composed of an inner cylinder 21 penetrating vertically and an outer cylinder 22 of a "U" shape spaced apart from the inner cylinder 21 to form an ascending exhaust passage 23, Is provided with a stirring blade 25 which is rotated by the upper drive motor M and moves up and down to mix the chemicals with the inflow water.

A skimmer 27 for collecting the flocculated flakes separated by the floatation separator 30 and discharging the coagulated flocs to the flocculated flue outlet 13 formed on one side of the upper part of the treatment tank 10 is connected to the upper drive motor and the stirring blades 25 (Not shown).

The filter medium 45 of the filtration and adsorption unit 40 is made of a ceramic tile. The ceramic tile is prepared by adding 3 to 10 parts by weight of aluminum to 100 parts by weight of a normal white clay and clay mixture having excellent adsorbability, And is formed to have a solid formation of about 5 to 10 mm. If the diameter of the ceramics tile is less than 5 mm, it is highly likely that the pores of the tile are clogged by the microflux and the inflow water is not smoothly discharged. If the diameter is larger than 10 mm, It is preferable that the diameter of the ceramic dyes is 5 to 10 mm because the possibility of passing through the pores of the tile without being filtered is high.

If too little aluminum is added, the phosphorus recovery effect is deteriorated. If too much aluminum is added, void formation is reduced. Therefore, it is preferable to add 3 to 10 parts by weight of aluminum to 100 parts by weight of the mixture of clay and clay.

In addition, the ceramic tile is formed by heat molding at a high temperature so that the abrasion resistance is low, and a certain strength is secured, so that semi-permanent use is possible without damaging such as breakage.

A vertical discharge pipe 15 is connected to the discharge port 12 of the treatment tank 10 and the upper portion of the discharge pipe is inserted into the discharge pipe 16 having the process water discharge port 17, To discharge the treated water.

2. How it works

Hereinafter, the operation and operation of the present invention will be described.

In the present invention, an additional ionic component or a phosphorous component contained in the fine floc is recovered because the ionic component of the wastewater can be additionally installed at the downstream end of the conventional wastewater purification facility.

The inflow water introduced through the upper inlet port 11 of the treatment tank 10 is filled in from the lower portion of the treatment tank 10 and then has a water level higher than that of the upper portion of the outer cylinder 22. [ And flows into the inner tube 21 of the coagulation reaction section 20.

At this time, the inflow water is supplied with a coagulant to coagulate the micro flocs containing the phosphorus component of the influent water.

The inflow water and the chemicals supplied to the inner cylinder 21 of the flocculation reaction unit 20 are mixed and stirred by the stirring blades 25 rotating and driven by the driving motor M while the fine flocs containing the phosphorus components of the influent water are agglomerated .

The treated water having undergone the coagulation reaction is supplied to the floating separation section 30 inside the treatment tank 10 through the "U" type ascending discharge path 23 between the inner cylinder 21 and the outer cylinder 22. The inflow water supplied to the floating separation unit 30 floats up and separates the flocculated flock. At this time, flocculation flakes are more effectively separated by microbubbles supplied from the bubble generator 50, which will be described later.

Is treated in a filtration adsorption unit (40) formed in the lower part of the iontophoresis tank, in which coagulated flocs or other fine flocs are precipitated from the influent water to the lower part of the treatment tank. In particular, the filter medium 45 of the filtration and adsorption unit is formed by adding aluminum to a normal clay and clay mixture and heating it at a high temperature to form a ceramic film having a solid formation of about 5 to 10 mm in diameter, , Effectively adsorb and filter ionic substances.

The treated water having passed through the filter material 45 of the adsorption filtration unit 40 is discharged through the discharge port 12 located at the lower portion of the treatment tank 10.

A portion of the treated water is circulated to the micro bubble generator 55 to generate bubbles and then supplied to the upper portion of the filtrate adsorption unit 40 through the bubble supply pipe 52, The flocculant flotation and separation of the fine flocs, flocculated flocs and ionic substances adsorbed on the filter medium 45 of the filtrate adsorbing section 40 are removed, and the filtration material is backwashed at the same time, It is possible to use the filter medium continuously without washing the filter medium.

In addition, the microbubbles block the gap between the ceramic tiles and block the outflow of the ionic phosphorus contained in the influent water.

The sludge such as the flocculated float floated in the treatment tank 10 as described above is discharged to the outside by the skimmer 27 rotationally driven by the drive motor M, And discharged to the discharge port 13. At this time, since the discharged sludge is floated and separated by the skimmer 27, the water content is lower than that of the sludge discharged by the prior art, so that there is an advantage that no additional reprocessing is required.

As described above, according to the present invention, in the single treatment tank 10, the ionic components of the influent water and the phosphorus components contained in the micro flocs are simultaneously subjected to the coagulation reaction by the chemical agent, the flotation separation and the filtration adsorption process by the ceramic tile, It is possible to perform continuous operation while continuously performing the back washing of the ceramic carrier by the bubbles together with the recovery of the influent water and the micro flocs and the ionic substances which are adsorbed and grown on the cohesive flocs or the ceramic carrier by the bubbles, But it also provides excellent recovery efficiency of the phosphorus component of the influent water.

In addition, since the use of the chemical of the influent water is minimized, the reprocessing of treated water and other secondary contamination can be prevented.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the present invention can be changed.

100: Recovery device for wastewater purification facility
10: Treatment tank
11:
12: Outlet
13: Coagulated flock outlet
17: treated water outlet
20: Coagulation Reaction Unit
21: My heart
22: outer tube
23: Upstream exhaust path
25: stirring wing
27: Skimmer
30:
40: Filtration adsorption part
45: Filter medium
50: bubble generator
52: Bubble supply pipe
55: micro bubble generator

Claims (5)

A treatment tank through which inflow water flows into an inlet formed at one side;
An agglomeration reaction unit located in the interior of the treatment tank for agglutinating and reacting micro-flocs containing phosphorus in the influent water with an agglutinating agent;
A floatation separating section for floating flocculating the floated float in the inflow water through the flocculation reaction section;
A filtration adsorbing unit which adsorbs the coagulated flock settled in the influent water having passed through the flocculation reacting unit with the filter material and then filters only the treated water from which the phosphorus has been removed;
A discharge port located at a lower portion of the treatment tank; And
And a treated water discharge port connected to the discharge port and located at the other side of the treatment tank,
The coagulation-
An inner cylinder positioned at a central portion of the treatment tank and opened at both sides;
A "U" -shaped outer tube surrounding the inner cylinder so as to form an ascending discharge path spaced from an outer surface of the inner cylinder;
A stirring blade which is located inside the inner cylinder and rotates and moves up and down by a driving motor located at an upper portion of the treatment tank to mix the flocculant with the influent water; And
And a skimmer disposed at an upper portion of the treatment tank adjacent to the discharge port and discharging the coagulated flakes, which are floated and separated by rotation, to the discharge port,
The inflow water flowing into the inlet port sequentially passes through the flocculation reaction section, the floating separation section and the filtrate adsorption section, and phosphorus in the influent water is removed, and after passing through the discharge port, through the treated water outlet port located on the other side of the treatment tank Characterized in that,
Recovery device for wastewater purification facilities.
The method according to claim 1,
Wherein a coagulating flue outlet is formed at one side of the treatment tank to discharge the coagulating flock adjacent to the charging port.
Recovery device for wastewater purification facilities.
The method according to claim 1,
The recovery device for wastewater purification equipment comprises:
A bubble supply pipe communicating with the filtrate adsorption unit; And
And a bubble generator for supplying the treated water discharged from the discharge port to the bubble supply pipe,
Wherein the bubble generating unit circulates a part of the treated water to the filtrate adsorbing unit to float the fine flocs and the coagulated flocs while preventing backwashing of the filter material or outflow of the phosphorus through the gap of the filter material.
Recovery device for wastewater purification facilities.
delete The method according to claim 1,
Wherein the filter medium is a solid ceramic tile heated after adding aluminum to a mixture of clay and clay,
Characterized in that the ceramic tile has a diameter of 5 to 10 mm.
Recovery device for wastewater purification facilities.

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