WO2016137136A1

WO2016137136A1 - Polluted water purifying device and polluted water purifying method appropriate therefor

Info

Publication number: WO2016137136A1
Application number: PCT/KR2016/001224
Authority: WO
Inventors: 이여형; 정박
Original assignee: 이여형; 정박
Priority date: 2015-02-25
Filing date: 2016-02-04
Publication date: 2016-09-01

Abstract

A polluted water purifying device is disclosed. The polluted water purifying device comprises: a purifying canister having polluted water and purified water introduced therein; an ozone generator generating ozone gas; an underwater pump for circulating the polluted water and purified water introduced in the purifying canister; and a Venturi pipe for mixing the ozone gas generated in the ozone generator in the polluted water and purified water provided by the underwater pump, wherein mixed ozone water is generated by dissolving ozone while circulating the introduced purified water, and the polluted water is purified by circulating and mixing the generated mixed ozone water and the introduced polluted water.

Description

Contaminated Water Purification System and Contaminated Water Purification Method

The present invention relates to a contaminated water purification apparatus, and more particularly, to a gradual contaminated water circulation purification apparatus for circulating and purifying contaminated water gradually, and a method for purifying contaminated water.

Conventional contaminated water purification method is to remove the solids by the solid-liquid separation (or centrifugation), and to remove the solids with a precipitant, and then purged by passing through 15 ~ 20 cases with EM or the like. Usually one canister is viewed as one day. In other words, if there are 20 containers, the purification is completed after 20 days.

At the same time, they are not properly purified, they do not catch odors in the process, and odors are a big problem. There were many problems with BOD, COD and so on.

An object of the present invention is to provide a sequential contaminated water circulation purification device that has been devised to solve the above problems.

Another object of the present invention is to provide a sequential polluted water circulation purification method.

Contaminated water circulation purification apparatus according to the present invention to achieve the object of the present invention

In the contaminated water circulation purification apparatus which circulates and purifies while mixing ozone water with contaminated water,

Purification container into which contaminated water and purified water flow;

An ozone generator for generating ozone gas;

An underwater pump for circulating the contaminated water and the purified water introduced into the purification tank; And

A venturi tube for mixing the ozone gas generated in the ozone generator to the purified water in the contaminated water and the purified water provided by the submersible pump;

Including;

The ozone is dissolved while circulating the introduced purified water to generate mixed ozone water, and the mixed mixed ozone water and the introduced polluted water are mixed while circulating to purify the contaminated water.

Here, it is preferable to further include a dissolved tube for increasing the ozone dissolved concentration of the ozone mixed water provided from the venturi tube.

Here, a solid precipitation tank for generating a solid by injecting a precipitant into the contaminated water to precipitate the generated solid; And

It is preferable to further include a solid separator for separating and removing solids from the contaminated water flowing out of the solid settling tank.

In the progressive contaminated water circulation purification method of the present invention to achieve another object of the present invention, in the contaminated water circulation purification method using a circulating purification unit for mixing and purifying the contaminated water and ozone water while circulating,

Introducing a first portion of purified water into the circulating purification unit to circulate and purify ozone gas for a first period to generate high concentration mixed ozone water;

Circulating and purifying the second amount of contaminated water to be treated while flowing into the circulating purification unit for a second period of time;

Circulating and purifying for a third period without introducing contaminated water; And

Circulating and purifying the purified contaminated water of the circulation purification unit during a fourth period of time;

Characterized in that it comprises a.

The gradual contaminated water circulation purification apparatus according to the present invention saves about 2/5 to 3/10 space compared to the conventional purification apparatus because it uses only three to five purifiers, and saves about 40% of equipment cost. It has an effect that can be done.

In addition, the gradual contaminated water circulation purification method according to the present invention can complete the purification in a much shorter time than the conventional purification device has the effect of saving the processing time.

In addition, the gradual contaminated water circulation purification method according to the present invention has the effect of achieving the odor removal function in addition to the purification function because ozone water is used.

1 shows a configuration of a contaminated water purifying apparatus according to the present invention.

FIG. 2 shows the configuration of the primary circulation purification unit shown in FIG. 1.

3 and 4 are flowcharts showing the operation of the apparatus shown in FIG.

1, the contaminated water purification device 10 according to the present invention is a solid sedimentation tank 102, solid separator 104, the first reservoir 106, the primary circulation purification unit 108, the second storage Group 110, a secondary circulation purifier 112, a third reservoir 114, a third circulation purifier 116, and a fourth reservoir 118.

The solid settling tank 102 injects a precipitant into the contaminated water to precipitate the solids contained in the contaminated water.

The solids separation tank 104 separates the solids by treating the contaminated water introduced from the solids precipitation tank 102 with a centrifugal separator or the like.

The first reservoir 106 stores the contaminated water introduced from the solid separation tank 104, that is, the contaminated water from which the solids have been removed.

The primary circulation purification unit 108 circulates and purifies the mixed water introduced from the first reservoir 106 while mixing high concentration mixed ozone water. High concentration mixed ozone water is generated by mixing ozone gas with high concentration (about 3 ppm or more) in purified water.

The second reservoir 110 stores the primary purified polluted water introduced from the primary circulation purification unit 108.

The secondary circulation purifying unit 112 circulates and purifies the primary purified polluted water introduced from the second reservoir 110 while mixing high concentration mixed ozone water again.

The third reservoir 114 stores the secondary purified polluted water introduced from the secondary circulation purification unit 112.

The tertiary circulation purifying unit 116 circulates and purifies the secondary purified polluted water introduced from the third reservoir 114 while mixing high concentration mixed ozone water again.

The fourth reservoir 118 stores a portion of the tertiary purified water purified by the tertiary circulation purification unit 116.

The purified water stored in the fourth reservoir 118 is provided as purified water to the first to second circulation purification units 108. 112, and the third circulation purification unit leaves its own purification water. The ozone gas is dissolved in purified water at high concentration in the first to third circulation purifying parts 108. 112 and 116 to make high concentration mixed ozone water, and the high concentration mixed ozone water is mixed with contaminated water to purify the contaminated water.

In the apparatus shown in FIG. 1, since the first to third circulating

purification units

108, 112, and 116 have the same configuration, only the configuration of the first circulating purification unit 108 is described and the second to third units are described. Description will be omitted for the secondary

circulation purifying units

112 and 116.

Referring to FIG. 2, the primary circulation purification unit 108 includes an ozone generator 202, a septic tank 204, a water pump 206, a venturi tube 208, and a dissolved tube 210.

The septic tank 204 is a container for holding contaminated water and purified water, and an underwater pump 206, a venturi tube 208, and a dissolution tube 210 are installed inside the septic tank 204. Here, the purified water refers to the purified by the apparatus shown in FIG.

The submersible pump 206 circulates the contaminated water and the purified water in the septic tank 204. The venturi tube 208 mixes ozone generated by the ozone generator 202 with purified water forcedly circulated by the submersible pump 206. Dissolved pipe 210 is to increase the ozone dissolved degree of mixed ozone water. Dissolved pipe 210 may be used by connecting a plurality in series or in parallel as necessary.

Contaminated water is purified by high concentration mixed ozone water.

During circulating purification, ozone gas is introduced for 24 hours to purify contaminated water and purified water. On the other hand, ozone gas may be added only when the purified water is purified to generate high concentration ozonated water, and ozone gas may not be added to the contaminated water.

In the ozone water circulation purification apparatus of the present invention, by injecting ozone gas into purified water and treating it by a dissolved tube again, high concentration mixed ozone water is produced, and then the contaminated water is purified using high concentration mixed ozone water.

High concentration ozone water, that is, ozone water in which high concentration of ozone is dissolved, has many target organic substances that react faster and react faster than ozone gas (O 3) due to the generation of OH.

In the related art, it was difficult to generate high concentration ozone water, but the present invention increases ozone water solubility through the dissolution pipe, and cyclically and repeatedly performs this process to easily generate high concentration ozone water.

Ozone Hydroperoxy radical (HO ₂₎ and Superoxide radicals in the intermediate-producing material begins to decompose in a hydroxyl group in aqueous solution without contaminants (O ₂ ^-) to form a, all of which are Ozonide radicals react with ozone molecules again (O ₃ ^- OH radicals are generated through the intermediate path of). Among the radicals produced by this intermediate, the OH radical has a potential difference higher than that of ozone (3.08V) and is evenly reacted with almost all organic substances at a very high speed. Ozone, on the other hand, may be slow to react with most organics or may not react with any organics at all.

Dissolution tube 210 is configured between a plurality of mesh perforations having a cross-section of the venturi structure between the suction cap and the discharge cap is inserted.

Dissolved pipe 210 instantaneously contracts, relaxes, cuts and varies purified water and ozone gas passing through the inside of the dissolved tube through a thin-film mesh having a perforated network of venturi structure, thereby dissolving ozone gas in purified water to create high concentration ozone water. Can be.

For details about the dissolved pipe 210, patent application 10-2014-0194813 filed by the applicant, "Dissolved pipe using a mesh perforated network having a cross-section of the venturi structure, a master screen roller manufacturing method, and a suitable electroforming mold method Is disclosed.

3 and 4 are flowcharts showing the operation of the apparatus shown in FIG.

First, a high concentration of contaminated water (20 t / d) is introduced into the solid settling tank 102, and a precipitant is added to produce a solid. The produced solid is precipitated to the bottom of the solid settling tank 102 (s302).

The contaminated water from which the solid precipitated from the solid precipitation tank 102 is introduced into the solid separator 104 (s304).

Centrifugal separation is performed on the contaminated water introduced into the solid separator 104 to remove and remove the solids. (S306, S308)

The contaminated water from which the solids are separated and removed from the solids separator 104 is introduced into the first reservoir 106 (s310).

5t of purified water stored in the fourth storage tank 118 is circulated and purified for 1 hour by flowing into the septic tank 202 of the primary circulation purification unit 108, and further circulated and purified for 2 hours without adding purified water to high concentration mixed ozone water. (Total of 3 hours, corresponding to the first period in the summary of the present invention). (S312)

20 t of the contaminated water stored in the first storage tank 106 is circulated and purified by the high concentration mixed ozone water while slowly entering the septic tank 202 for 14 hours (corresponding to the second period in the summary of the present invention). (S314, S316)

Thereafter, circulating and purifying the high concentration mixed ozone water for 4 hours (corresponding to the third period in the summary of the present invention) without adding contaminated water (s318).

After 25 hours (corresponding to the fourth period in the summary of the present invention), 25 tons of the first purified contaminated water of the primary circulation purification unit 108 is circulated and purified by the high concentration mixed ozone water while flowing into the second storage tank 110. (s320)

5t of purified water stored in the fourth storage tank 118 is circulated and purified for 1 hour into the septic tank 202 of the secondary circulation purification unit 112, and further circulated for 2 hours to make a high concentration mixed ozone water (total 3 Time cyclic purification). (S322)

25t of contaminated water stored in the second storage tank 110 is circulated and purified with high concentration mixed ozonated water while slowly flowing into the septic tank 202 of the secondary circulation purification unit 112 for 14 hours. (S324, S326)

Afterwards, it is circulated and purified with high concentration mixed ozone water for 4 hours without additional contaminated water. (S328)

Thereafter, the secondary purified polluted water of the secondary circulation purifying unit 112 is circulated and purified by the high concentration mixed ozone water while flowing into the third storage 114 (S330).

About 5 tons of purified water left in the septic tank 202 of the tertiary circulation purifying unit 116 is circulated and purified for 3 hours to produce high concentration mixed ozone water.

30 t of the contaminated water stored in the third reservoir 114 is circulated and purified with high concentration mixed ozone water while slowly flowing for 14 hours. (S334, S336)

Thereafter, a total of 35 tons of contaminated water is circulated and purified for 4 hours with high concentration of mixed ozone water without additional contaminated water (s338).

Thereafter, the secondary purified polluted water of the third circulation purification unit 116 is circulated and purified by the high concentration mixed ozone water while flowing into the fourth storage tank 118 for 3 hours.

Leave about 5 tons in the third circulation purification unit 116 and move the remaining 30 to the fourth reservoir 118. (s342)

Of about 30 tons of the purified water of the

fourth storage tank

118, 10 tons are provided to the purification tank 202 of the

circulation purification unit

108 and 112, and the remaining 20 tons are discharged or recycled (s344, S346).

3 to 4, the contaminated water circulation purification method of the present invention generates a high concentration of mixed ozonated water by circulating the purified purified water for a first period. Specifically, circulating and purifying with an inlet for 1 hour and circulating and purifying with a high concentration of mixed ozonated water without inflow for 2 hours. (3 hours in total), circulating and purifying the contaminated water treated in the previous stage during the second period (14 hours) with high concentration mixed ozonated water, and circulating for the third period (4 hours) with the additional input of the contaminated water stopped. It can be seen that the purified and then purified purified contaminated water with high concentration mixed ozone water while flowing out for the fourth period (3 hours).

It can be seen that the first cyclic purification unit 112 performs a purge cycle corresponding to the sum of the first to fourth periods, that is, 24 hours.

Thereafter, the second circulation purification unit 116 and the third circulation purification unit 120 sequentially perform the purification process. The purifying cycles of the circulating

purification processing units

112, 116, and 120 are the same, but the total amount of contaminated water to be treated is increased toward the rear end.

According to claim 5, If a plurality of circulating purification unit is installed in the circulating purification unit of the front end circulating purified water by flowing into the circulating purification unit of the rear end,

Here, circulating purification sequentially means that circulating purified water from the front end circulating purified water flows into the circulating purification part of the rear end, but before the contaminated water purified from the circulating purification part of the front end flows into the circulating purification part of the latter end. This means that the process of generating the mixed ozone water by circulating and purifying the first portion of the purified water by introducing the first amount of purified water and mixing the ozone gas during the first period is completed.

The purification effect can be enhanced by such sequential circulation purification and recycling of purified water.

That is, as shown in FIG. 1, when the first to third

circulation purification units

108, 112, and 116 are installed, each of the

circulation purification units

108, 112, and 116 performs a purification process for 24 hours. However, when the first to third circular

purification processing units

108, 112, and 116 sequentially perform circular purification, it can be seen that one cycle of periodic purification is performed for 24 hours.

It can be seen that the circulating treatment method of the present invention by the sequential circulation purification process has an advantage of performing the purification treatment in a short time while increasing the operation rate of the purification apparatus compared to the conventional purification method.

10 ... pollution water purification device

202 Ozone Generator

204.Septic

206 ... submersible pump

208 ... Ventury tube

210.Dissolution tube

Claims

In the contaminated water circulation purification apparatus which circulates and purifies while mixing ozone water with contaminated water,

Purification container into which contaminated water and purified water flow;

An ozone generator for generating ozone gas; And

An underwater pump for circulating the contaminated water and the purified water introduced into the purification tank; And

A venturi tube for mixing the ozone gas generated in the ozone generator to the purified water in the contaminated water and the purified water provided by the submersible pump;

Including;

And ozone is dissolved while circulating the introduced purified water to generate mixed ozone water, and the mixed mixed ozone water and the introduced polluted water are mixed while circulating to purify the polluted water.
The polluted water purification apparatus according to claim 1, further comprising a dissolved tube for increasing the ozone dissolved concentration of the mixed ozone water provided in the venturi tube.
According to claim 1, Solids precipitation tank for inputting the precipitant to the contaminated water to generate a solid and precipitate the generated solid; And

And a solids separator for separating and removing solids from the contaminated water flowing out of the solids settling tank.
In the contaminated water circulation purification method using a circulating purification unit for mixing and purifying contaminated water and ozone water while circulating,

Introducing a first portion of purified water into the circulating purification unit to circulate and purify ozone gas for a first period to generate mixed ozone water;

Circulating and purifying the contaminated water to be treated in the second portion with mixed ozone water while flowing into the circulating purification unit for a second period;

Circulating and purifying with mixed ozone water for a third period without introducing contaminated water; And

Circulating and purifying the mixed ozone water while draining the purified polluted water of the circulation purification unit for a fourth period of time;

Polluted water circulation purification method comprising a.
The method of claim 4, wherein

The total of the first period to the fourth period is 24 hours, characterized in that the polluted water circulation purification.
According to claim 5, If a plurality of circulating purification unit is provided, the circulating purified water from the front end of the circulating purification unit flows into the circulating purification unit of the rear end to circulate and purified, but the contaminated water purified by the circulating purification unit of the preceding stage Purifying polluted water, characterized in that the process of generating a mixed ozone water by circulating and purifying while mixing ozone gas for a first period by introducing a first amount of purified water from the downstream circulating purification unit before entering the circulation purification unit Way.