KR20050109743A - Apparatus for purificating of closed water area by rapid cohesive precipitation - Google Patents

Abstract

Disclosed is a rapid flocculation settling purification apparatus for closed water. Such a purifier includes a chemical supply unit for storing and supplying a chemical, a chemical mixing unit for mixing supplied chemicals and raw water, an raw water supplied from the chemical mixing unit, and a flocculating floc unit in which collision occurs between particles to form a floc; And a sludge storage unit for storing and discharging the floc separated from the rapid flocculation sedimentation unit and returning it to the floc forming unit.

Description

APAPATUS FOR PURIFICATING OF CLOSED WATER AREA BY RAPID COHESIVE PRECIPITATION

The present invention relates to a rapid flocculation sedimentation purification apparatus of a closed water, and more particularly, to a floc by adding a chemical to raw water, and to rapidly settling the floc, which is capable of efficiently separating and treating sludge from raw water. The present invention relates to a rapid flocculation settling purification system in a body of water.

In recent years, water quality is contaminated by floating substances, organic matter, nutrients, etc., in many closed waters such as lakes. Most of the domestic appeals are consumed by dissolved oxygen in the water by pollution and by eutrophication due to over-influx of nutrients, causing green algae, causing bad smell, transparency and aesthetic effect.

Techniques for purifying the water quality of closed waters such as lakes by treating suspended solids, organic matter or nutrients that cause such pollution are being developed.

The method of purifying contaminated water can be largely classified into a technology for removing nutrients from the lake water, a technology for purifying sediments in the lake, and a technology for purifying water from the water in the lake.

In addition, the present invention is a technology for purifying water quality by removing suspended solids, nutrients, and the like in the lake water or closed water.

The purification method related to the technique of the present invention includes a chemical flocculation sedimentation method, which controls the bioproductivity in the appeal by adding iron salt or aluminum salt in the lake to precipitate the inorganic phosphorus dissolved in the lake with insoluble phosphorus compounds. do.

An effective aspect of this method is the removal of various forms of phosphorus, with or without oxygen, and less risk of toxicity or environmental damage from treatment.

However, the precipitated insoluble phosphate re-dissolves under the influence of algae, causing internal load.

Therefore, it is inadequate for relatively shallow appeals. In addition, there is a problem that may cause a pH problem, fish death problem depending on the amount of flocculant used.

In addition, there is a problem in that the treatment facility is installed at the edge of the appeal, etc., taking up the site and adversely affecting the appearance.

Therefore, the present invention has been made to solve the above-mentioned problems, the object of the present invention is to add a chemical to the raw water to form a floc, by rapidly settling the floc can be efficiently separated and treated sludge from the raw water An enclosed body of water is to provide a rapid flocculation settling purification system.

In addition, another object of the present invention is to provide a purification device that can be installed in the water to compensate for the problems of the site and aesthetics.

Another object of the present invention is to fully mix the flocculant, algae, phosphorus and the like flocculant in order to increase the efficiency of flocculation sedimentation, and to reduce the sedimentation separation time by developing a device that can promote floc growth in order to improve sedimentation To provide a purification device that can be.

Another object of the present invention is to reduce the drug costs and to remove the nutrients efficiently by returning some of the precipitate precipitate.

In order to realize the object of the present invention, a preferred embodiment of the present invention and the drug supply unit for storing and supplying drugs; A medicine mixing unit mixing the supplied medicine and raw water; The raw water supplied from the chemical mixing unit includes an agglomeration floc unit which causes a collision between particles to form a floc; A rapid flocculation sedimentation unit for rapidly settling floc-containing raw water; And a sludge storage section for storing and conveying the floc separated from the rapid flocculation settling section.

Hereinafter, with reference to the accompanying drawings will be described in detail the rapid flocculation settling purification treatment of the closed water according to a preferred embodiment of the present invention.

As shown in Figures 1 and 2, the rapid flocculation sedimentation purification treatment of the closed water proposed by the present invention is a chemical supply unit (1) for storing and supplying a drug, and a chemical mixing unit for mixing the supplied drug and raw water ( 3), the floc forming part 5 which forms a floc by colliding with the floating particle and the flocculating chemical particle among raw water supplied from the chemical mixing part 3, and the rapid flocculation needle which setstles the raw water containing a floc rapidly. The sludge storage part 9 which stores and conveys the whole 7 and the floc isolate | separated from the rapid flocculation settling part 7 is comprised.

In the rapid flocculation sedimentation purification apparatus of a closed water body having such a structure, the chemical supply unit 1 discharges the chemical storage tank 11 and the chemicals of the chemical storage tank 11 into the chemical mixing unit 3. To the chemical injection pipe 13 and the upper portion of the chemical storage tank 11 includes a support case 15 for supporting and protecting the chemical injection pipe (13).

The chemical storage tank 11 has a hexahedron shape having an empty space therein, and stores a chemical, preferably a flocculant, for purifying contaminated raw water.

And, the water inlet pipe 17 is connected to one side of the chemical storage tank 11, the external water can be introduced into the chemical storage tank (11).

Therefore, since the water level is lowered when the medicine in the chemical storage tank 11 is consumed, in this case, the water level is kept constant by allowing external raw water to flow through the water inlet pipe 17.

And, one end of the chemical injection pipe 13 is located inside the chemical storage tank 11, the middle portion via the support case 15, the lower end 31 is connected to the chemical mixing unit (3).

Therefore, the medicine stored in the medicine storage tank 11 may be supplied to the medicine mixing unit 3 by the suction force due to the pressure difference acting on both ends of the medicine injection pipe 13 as described below.

As shown in FIGS. 1 and 2, the chemical mixing unit 3 mixes the chemicals and raw water supplied through the chemical injection pipe 13 when the underwater motor pump 35 is driven to form a floc forming unit 5. To supply.

One end of the submersible motor pump 35 is connected to the raw water supply pipe 37, one end of the raw water supply pipe 37 is projected to the outside of the chemical mixing unit 3 is connected to the raw water supply (not shown).

Accordingly, when the submersible motor pump 35 is driven, raw water flows through the supply pipe 37 by the suction force, and at this time, a pressure difference is generated at both ends of the chemical supply pipe 13 by Bernoulli theorem.

As a result, the drug stored in the drug storage tank 11 by the pressure difference can be supplied to the drug mixing unit 3 through the drug injection pipe (13).

Then, one side of the chemical injection pipe 13 is equipped with a control valve 19 to adjust the amount of chemical passing through the chemical injection pipe (13).

As described above, when the submersible motor pump 35 is driven, a suction force is generated, and the drug and the raw water are introduced and mixed by the suction force. Then, the medicine is supplied to the floc forming part 5 in a state in which chemicals are mixed in the raw water.

As shown in Figs. 1 and 2, the floc forming portion 5 is composed of a plurality of agglomerated plates 51 having holes 52 formed therein, and raw water mixed with chemicals passes between a plurality of agglomerated plates. This has a structure of forming a floc.

That is, the plurality of agglomeration plates 51 are respectively mounted on the inner wall of the floc forming tank case 53, and holes 52 are drilled in each agglomeration plate 51. The holes 52 are arranged in a zigzag shape with each other.

Therefore, the raw material in which the chemical is mixed has a structure in which floc formation is maximized by colliding or tangling with each other in the course of sequentially passing through the holes 52 of the aggregation plates 51.

At this time, the interval between the aggregation plates 51 is preferably maintained about 10-12cm. Of course, the interval can be changed according to the purification treatment ability.

In this way, the raw water and the floc that have passed through the floc forming part 5 are supplied to the quick settling part 7 through the flow path 60 formed between the floc forming part 5 and the quick settling part 7.

The upflow guide plate 63 is disposed in an inclined shape on the bottom surface of the flow path 60. Therefore, the raw water and the floc supplied to the flow path 60 flow upward by such an upflow guide plate 63 so that a smooth flow path is formed and precipitation of the floc can be prevented.

As shown in FIGS. 1, 3, and 4, the rapid settling unit 7 includes a case 70, a rapid settling plate 71 having a concavo-convex structure disposed inside the case 70, and It consists of a funnel-shaped separator plate 73 collecting the sludge precipitated on the rapid settling slope plate 71, and a sludge inlet pipe 75 for transferring the sludge from the separator plate 73 to the sludge storage tank (9).

An inflow hole 65 is formed in one side wall of the case 70, and raw water and floc are supplied from the floc forming part 5 through the inflow hole 65.

The rapid settling plate 71 has a shape that is bent in a triangle, a plurality of inclined plate has a shape in which a layer layer is arranged.

At this time, the interval D between each inclination plate 71 is preferably 4-10 cm, and the inclination angle θ is maintained at 40-50 degrees.

Therefore, the raw water and the floc supplied into the case 70 flow down along the plurality of rapid settling inclined plates 71.

This process prevents rapid sedimentation and refloating of flocs. The accumulated flocs are moved and settled at both ends of the inclined plate by gravity.

As described above, sludge such as floc is settled through the inclined plate 71, and the settled sludge is introduced into the sludge inlet pipe 75 connected to the funnel-shaped separating plate 73 formed at the bottom thereof.

Then, the sludge introduced into the sludge inlet pipe 75 is supplied to the sludge storage unit 9 through the sludge moving pipe 92, and the raw water separated from the sludge is discharged to the outside through the raw water discharge port 79.

As such, some sludge in the sludge storage unit 9 into which the sludge is introduced is returned for efficient nutrient removal, and some of the sludge is settled by gravity for a certain period of time and then concentrated and discharged to the outside.

1 and 5, the sludge storage unit 9, a sludge conveying pipe 91 disposed on one side of the inside, and a funnel-shaped sludge collecting plate disposed under the sludge storage unit 9 ( 93) and a sludge discharge pipe 95 for discharging the sludge to the outside.

In the sludge storage unit, a part of the sludge introduced through the sludge moving tube 92 is accumulated in the sludge collecting plate 93 by naturally settling by gravity within the sludge storage unit 9.

Then, the stacked sludge is discharged to the outside by the sludge discharge pipe (95) connected to the sludge collecting plate (93).

In addition, some of the sludge is stored in the sludge storage unit 9 as it is gravity settled for a period of time and then manually discharged to the outside.

On the other hand, the sludge which is not settled in the sludge and is in a suspended state flows into the sludge conveying pipe 91 and is conveyed back to the chemical mixing unit 3.

That is, the sludge conveying pipe 91 is connected to the outlet 39 of the submersible motor pump 35, and at this time, is sucked by the pressure difference of the orifice provided in the outlet 39 and the floc forming part ( 5) flows into.

As described above, the process from the floc forming part 5 is again performed.

As described above, the apparatus and method for rapid sedimentation and purification of closed water according to a preferred embodiment of the present invention have the following advantages.

First, sludge separation efficiency can be improved by rapidly settling floc contained in raw water.

Second, the installation cost is reduced and the power can be minimized by not requiring a large space for the purification treatment device, thereby reducing the power cost.

Third, the installation of the purification device in the water does not interfere with the aesthetics because it is not observed from the outside of the water body, it is possible to prevent the occurrence of noise, odor and the like.

Fourth, since the sludge is stored and processed inside the purification apparatus, secondary pollution due to external discharge of the sludge can be prevented.

Fifth, it is possible to reduce the chemical cost and remove nutrients by returning some of the precipitate precipitate.

The present invention can be variously modified by those skilled in the art to which the present invention pertains without departing from the scope of the present invention as claimed in the claims, and is not limited to the specific preferred embodiments described above. .

1 is a perspective view showing a rapid flocculation settling purification apparatus of a closed water body according to a preferred embodiment of the present invention.

Figure 2 is a perspective view showing the structure of the chemical tank, the chemical mixing portion and the floc forming portion shown in FIG.

3 is a perspective view showing the rapid flocculation settling portion shown in FIG.

4 is a cross-sectional view of the rapid flocculation settling portion shown in FIG.

FIG. 5 is a perspective view showing a sludge storage unit for storing and conveying sludge shown in FIG. 1; FIG.

Claims (8)

A drug supply unit for storing and supplying a drug; A medicine mixing unit for sucking the medicine by the pressure difference from the medicine supply unit and mixing the raw water; A floc forming part which causes a collision between particles contained in the raw water supplied from the chemical mixing part to form a floc; A rapid flocculation sedimentation unit for rapidly settling floc-containing raw water; And And a sludge storage unit for storing and discharging the floc separated from the rapid flocculation sedimentation unit or returning it to the floc forming unit. According to claim 1, wherein the drug supply unit is a chemical storage tank capable of storing the drug, a chemical injection tube for discharging the medicine of the chemical storage tank to the chemical mixing unit, and installed on the upper of the chemical storage tank to support and protect the chemical injection tube Rapid flocculation sedimentation purification device of closed water including a support case. The sludge conveyed from the sludge storage tank is connected to the submersible motor pump, a raw water supply pipe connected to one end of the submersible motor pump, into which raw water can be introduced, and the other end of the submersible motor pump. A rapid flocculation settling purification system for a closed water body comprising a discharge pipe. The floc forming part of claim 1, wherein the floc forming part includes a plurality of agglomerated plates, and the flocs are formed in a plurality of agglomerated plates, each of which has holes punched and arranged in a zigzag shape. A rapid sedimentation purification device for enclosed water that can be formed. 2. The rapid sedimentation purification apparatus for closed water according to claim 1, further comprising a flow path for moving the raw water containing the floc between the floc forming portion and the rapid sedimentation portion. The apparatus of claim 5, wherein an upflow guide plate is disposed on the bottom of the flow path to prevent smooth flow path formation and floc accumulation. According to claim 5, The rapid sedimentation portion is formed with an inlet hole on one side of the case in which the raw water supplied from the flow path, a plurality of rapid sedimentation inclined plate of the concave-convex structure provided in the case, the rapid electric warp plate A rapid flocculation settling purification apparatus for a closed water body comprising a funnel-shaped separator plate collecting sludge deposited in the sludge and a sludge inlet pipe for transferring the sludge from the separator plate to the sludge storage tank. The sludge storage pipe of claim 3, wherein the sludge storage part is disposed at one side of the sludge storage pipe, and the sludge conveying pipe in which sludge is sucked and conveyed by the pressure difference of the water motor outlet is discharged, and the sludge discharge pipe which discharges the sludge precipitated and concentrated by gravity for a certain period of time. Sludge storage including a.