KR20170038452A - Water Treatment Device Combined Dissolved Air Flotation and Filtration - Google Patents

Water Treatment Device Combined Dissolved Air Flotation and Filtration Download PDF

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Publication number
KR20170038452A
KR20170038452A KR1020150137843A KR20150137843A KR20170038452A KR 20170038452 A KR20170038452 A KR 20170038452A KR 1020150137843 A KR1020150137843 A KR 1020150137843A KR 20150137843 A KR20150137843 A KR 20150137843A KR 20170038452 A KR20170038452 A KR 20170038452A
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South Korea
Prior art keywords
filtration
water
floating
tank
treatment
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KR1020150137843A
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Korean (ko)
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정태희
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(주) 삼진정밀
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Publication of KR20170038452A publication Critical patent/KR20170038452A/en

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2433—Discharge mechanisms for floating particles
    • B01D21/2438—Discharge mechanisms for floating particles provided with scrapers on the liquid surface for removing floating particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4631—Counter-current flushing, e.g. by air
    • B01F3/04248—
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • B01F2215/0052—

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Physical Water Treatments (AREA)

Abstract

The present invention relates to a composite type pressurized floating filter apparatus, which comprises a first chemical treatment unit and a second chemical treatment unit of a chemical reaction treatment unit for adjusting the pH of the incoming water and flocculating and coagulating the suspended substances and odor- The suspended particles are separated from each other by separating the floating scum and the residual particles by separating the floating scum from the upper surface of the water surface while the residual particles are separated and discharged from the lower surface of the water by the filtration method, And the water treatment process is simplified, thereby reducing the facility area, cost, and operation and management cost.

Figure P1020150137843

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a composite type pressurized flotation filter,

The present invention relates to a composite type pressurized floating filter apparatus, and more particularly, to a composite pressurized floating filtration apparatus for treating suspended particles and odor-inducing particles contained in water by means of a chemical treatment process and agglomerating / The present invention relates to a composite type pressurized floating filtration apparatus for separating and discharging a fluid.

Conventional sewage elevation processing techniques consist of physical and chemical treatment processes such as flocculation, sedimentation, floatation, filtration and disinfection. Techniques such as coagulation-sedimentation-filtration or flocculation-floatation- And there is a problem that the site occupies a large area.

Therefore, the conventional sewage elevation processing technology has a problem that the initial construction cost is high and the operation cost is high.

Korean Patent Publication No. 10-2002-0018424 (published on October 10, 2003) Korean Registered Patent No. 10-1305225 (registered on September 02, 2013) Korean Registered Patent No. 10-0982833 (registered on September 10, 2010)

In order to solve the above problems, it is an object of the present invention to provide a method and apparatus for recovering suspended particles and odor-inducing component particles, which are formed by inducing a physical agglomeration reaction through chemical treatment using an inorganic flocculant and a polymer flocculant in a chemical reaction treatment unit, (Floc) in the same pressure floating flotation tank can be separated and discharged by pressurization and filtration treatment using micro bubbles.

In order to accomplish the above object, the present invention provides a composite type pressurized floating filter apparatus comprising: a first chemical treatment unit for adjusting pH of inflow water and coagulating suspended particles and odor inducing component particles; A chemical reaction processing unit for condensing the agglomerated particles contained in the primary chemical treatment water transferred from the one chemical processing unit into a larger lump form; And the coagulated particles contained in the secondary chemical treatment water transferred from the second chemical treatment tank are pressurized by using micro bubbles to separate the floating scum and the remaining particles from each other to trap the floating scum on the upper side And a pressurized floating filter for separating and discharging the residual particles from the lower side by a filtration method.

Here, the pressurized floating filter portion may partition the treated water inflow region and the pressurized floating treatment region through the first separating wall provided with a lower through-hole at the inflow side of the secondary chemical treated water, A pressurized floating filtration tank dividing the pressurized floating processing region into a pressurized floating region and a separated discharge region through an inclinedly arranged filter paper wall; A micro bubble acid part injecting a micro bubble at a lower side of the pressurized flotation area of the pressurized floating filtration tank so as to pressurize the second chemical treated water flowing through the lower opening of the first separating wall along the inclined surface of the filter paper wall; A floating scum separation / discharge unit for collecting and separating the floating scum floated above the separation / discharge area of the pressurized floating filtration tank; A filtering medium installed in the middle of the separation and discharge area of the pressurized floating filtration tank to adsorb and remove the residual particles by gravity filtration; And a filtration treatment water discharge unit for discharging the filtration treatment water filtered through the filtration member from the filtration treatment water discharge area partitioned at the lower side of the filter medium.

The micro bubble diffusing unit may further include: an acid generator nozzle installed below the pressurized flotation area of the pressurized flotation filtration tank; A filtration treatment water recirculation pipe connected to the distillation water discharge area of the pressurized floating filtration tank and the anaerobic nozzle to re-purify the filtration treatment water; And a microbubble generator which is installed on the filtration water recirculation pipe and pressurizes the filtered water through the acidic nozzle which forms microbubbles in the filtration water which is recirculated.

The microbubble divider may further include a reservoir tank disposed between the acid gas nozzle and the microbubble generator on the filtration water recirculation pipe for storing microbubbles generated in the microbubble generator.

The floating scum separation / discharge unit may include a floating scum collecting tank provided at one side of the separation / discharge area of the pressurized floating filtration tank. A scraper provided above the separation and discharge region of the pressurized floating filtration tank for transferring the floating scum into the floating scum collecting bath; And a floating scum discharge pipe arranged to discharge the floating scum collected in the floating scum collecting tank to the outside.

The scraper may be a conveyor type scraper installed on the surface of the separation and discharge area of the pressurized floating filtration tank for scraping and transporting the floating scum.

In addition, the pressurized floating filter section may include a backwash device for backwashing the filter material using air and / or the filtered water into the discharge area of the filtration processing section; And a reverse water discharge unit for discharging backwash water backwashed on the upper side of the filter medium.

In addition, the backwash apparatus may include a backwash pump for returning the filtration water being discharged through the filtration water discharge pipe for discharging the filtered water back into the discharge area of the filtration processing unit of the pressurized floating filtration tank; And a backwash air blower for blowing up backwash air through a backwash air pipe connecting the filtration processing portion discharge region of the pressurized floating filtration tank.

The backwash water discharging pipe connects the upper side of the filter material of the pressurized floating filtration tank and separates and discharges the reverse water having passed through the filter material. And a reverse water discharge opening and closing valve for opening and closing the reverse water discharge installed on the reverse water discharge pipe.

In addition, the pressurized floating filtration processing unit may further include a backwatering overflow trench spaced above the filter medium for discharge of backwash water in the separate discharge area of the pressurized floating filtration tank.

In addition, the first chemical treatment unit may include a first chemical treatment tank in which a first chemical dosing area and a first chemical mixing area are defined through a second isolation wall provided with a lower through hole on a water inflow side; A neutralizer injector installed above the first chemical dosing region of the first chemical treatment tank to inject a neutralizing agent for pH adjustment of the water; A flocculant dispenser installed at one side of the neutralizer dispenser for dispensing a flocculant to flocculate suspended solids and odor evolving component particles in the inflow water; And a first agitator for mixing the neutralizing agent and the coagulant introduced into the drug mixing zone of the first chemical treatment tank.

In addition, the second chemical treatment unit may include a second chemical introduction area and a second chemical introduction area through a third isolation wall installed with a lower through-hole at the first chemical treatment water inflow side supplied from the first chemical treatment tank, A second chemical treatment tank which is partitioned; A coagulant injector installed above the second chemical dosing region of the second chemical treatment tank to inject coagulant into the mass of the microfloccules coagulated in the first chemical treatment water so as to agglomerate in a lump form; And a second agitator installed in the second chemical mixing region of the second chemical treatment tank and mixing the introduced coagulant.

According to the composite type pressurized floating filtration apparatus of the present invention, the pH of the influent water is adjusted through the first chemical treatment unit and the second chemical treatment unit of the chemical reaction treatment unit, and flocculation and condensation of the suspended substances and odor- The suspended particles are separated from each other on the surface of the water by separating the floating scum and the residual particles from each other to separate and remove the residual particles from the water surface by the filtration method, It is possible to simplify the structure of the apparatus and the water treatment process thereof, thereby reducing the area and cost of the equipment and the operation and management cost.

1 is a side cross-sectional schematic view showing a composite type pressurized floating filter apparatus according to a first embodiment of the present invention.

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 illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

1 is a side cross-sectional schematic view showing a composite type pressurized floating filter apparatus according to a first embodiment of the present invention.

1, the composite type pressurized floating filtration apparatus 100 according to the present embodiment mainly includes a chemical reaction processing unit 1 and a pressurized floating filter processing unit 5. As shown in FIG.

First, the chemical reaction processing section 1 is composed of a first chemical processing section 2 and a second chemical processing section 2.

Here, the first chemical treatment section 2 performs a primary treatment so as to adjust the pH of the introduced water and coagulate the suspended solids and the odor inducing component particles, and the second chemical treatment section 3 is conveyed from the first chemical treatment section 2 The second treatment is to make the micro-aggregated particles agglomerated in the first treated chemical treatment water into a larger agglomerated particles.

The pressurized floating filter processing unit 5 pressurizes the secondary chemical treatment water transferred from the second chemical treatment tank 3 using a micro bubble to divide the light floating scum and the remaining residual particles into layers, And separates and separates the scum from the upper surface of the water surface, and separates and discharges the residual particles from the lower side by filtration.

The first chemical treatment section 2 includes the first chemical treatment tank 20, the neutralizer injector 25, the flocculant injector 26, and the first agitator 27.

The first chemical treatment tank 20 is connected to the first chemical dosing region 22 through the isolation wall 21 having a lower through hole at the water inflow side where the water inflow pipe 10 is installed, Regions 23 are formed.

The neutralizer feeder 25 is installed above the first drug feed zone 22 of the first chemical treatment tank 20 and includes a neutralizer reservoir 25a, A supply pipe 25b and a neutralizing agent supply amount control valve 25c.

The flocculant feeder 26 is installed at one side of the neutralizer feeder 25 and is provided with a flocculant reservoir 26a and a flocculant feed pipe 26b so as to feed the flocculant into the floating water and the odor- And a flocculant supply amount control valve 26c.

The first agitator 27 is installed inside the chemical mixing zone 23 of the first chemical treatment tank 20 and is provided with a first stirring blade 27b and a second stirring blade 27b for mixing the neutralizing agent and the coagulant, And a motor 27a.

The amount of the neutralizing agent and the amount of the coagulant introduced into the first chemical treatment tank 20 is controlled by the pH and turbidity of the influent water measured through a pH meter (not shown) and a turbidity (SS) meter (not shown) provided at the front- The neutralizing agent supply amount control valve 26c and the flocculant supply amount control valve 26c are operated through the control panel according to the value of the neutralizing agent supply amount SS to automatically adjust the type and amount of the neutralizing agent and the flocculant.

The first agitator 27 can control the stirring speed of the first agitating blades 27b by controlling the first driving motor 27a through the control panel according to the amounts of the neutralizing agent and the flocculant.

At this time, it is preferable that the rotation of the agitating blades is controlled so as not to interfere with the formation of fine agglomerated particles in the first chemical treatment tank.

In the present embodiment, the second chemical treatment section 3 includes the second chemical treatment tank 30, the coagulant injector 35, and the second agitator 37. FIG.

The second chemical treatment tank 30 is provided continuously to the first chemical treatment water discharge side of the first chemical treatment tank 20 and is connected to the first chemical treatment tank 20 supplied from the first chemical treatment tank 20, The second drug dosing region 32 and the second drug mixing region 33 are partitioned through the isolation wall 31 provided with a lower through hole at the inflow side.

Here, the coagulant injector 35 is provided on the second drug charging area 32 of the second chemical treatment tank 30, so that the microaggregated particles contained in the first chemical treatment water are formed into a larger mass A condenser reservoir 35a, a condenser supply pipe 35b, and a condenser supply amount control valve 35c so as to inject the condenser into the condensation particles to form condensation particles.

The second agitator 37 is installed inside the second chemical mixing area 33 of the second chemical treatment tank 30 and is provided with a stirring blade 37b and a stirring blade 37b so as to mix and stir the loaded coagulant, 2 drive motor 37a.

The amount of the coagulant introduced into the first chemical treatment tank 20 is determined by the acidity of the first chemical treatment water obtained through a pH meter (not shown) and a turbidity (SS) meter (not shown) provided on the first chemical treatment water discharge side of the first chemical treatment tank 20 And automatically adjusts the coagulant supply amount control valve 37c through the control panel according to the turbidity (SS) value.

The stirring speed through the second stirring vane can be automatically controlled through the control of the operation of the second driving motor 37a of the second stirring device 37 through the control panel according to the amount of the condensing agent.

In the present embodiment, the above-mentioned pressurized floating filtration treatment section 5 includes a pressurized floating filtration tank 40, a microbubble acid base section 50, a floating scum separation / discharge section 60, a filter medium 45, A filtration treatment water discharge portion 70, a backwash device 80, and a reverse water discharge portion 90 as shown in FIG.

Here, the pressurized floating filtration tank 40 is provided continuously to the second chemical treatment water discharge side of the second chemical treatment tank 30, and the second chemical treatment tank 30, The treatment water inflow region 43 and the pressurizing floatation treatment region 44 are partitioned through an isolation wall 41 provided with a lower through hole at the inflow side of the treatment water and an inclined filter paper And separates the pressurized floating body treatment region 44 again through the wall 42 into the pressurized floating region 44a and the separate discharge region 44b.

The micro bubble acid part 50 injects microbubbles under the pressurized flotation area 44a of the pressurized floating filtration tank 40 and is contained in the second chemical treatment water flowing through the lower opening of the isolation wall 41 So as to raise the flocculated particles along the inclined surface of the filter paper wall (42).

Here, the microbubble acid unit 50 is configured to include an acidifier nozzle 55 (injection plate), a filtered water recirculation pipe 53, a microbubble generator 51, and a reservoir tank 52.

The diffuser nozzle 55 pressurizes the micro bubble supplied through the micro bubble generator provided below the pressurized flotation area of the pressurized flotation filtration tank.

The filtration treatment water recycling line 53 is disposed so as to connect the filtration treatment water discharge region 44c of the pressurized floating filtration tank 40 to be described later and the acidic nozzle 55 so that the filtration treatment So that the treated water can be recycled so that more microbubbles can be formed and supplied.

The micro bubble generator 51 is provided on the filtration water recirculation pipe 53 to suck and dissolve air in the recirculated filtration water to form micro bubbles.

The reservoir tank 52 is disposed on the filtered water recirculation pipe 53 so as to be positioned between the anaerobic nozzle and the microbubble generator 51 to receive microbubbles generated in the microbubble generator 51 And adjust the injection pressure through the diffuser.

As described above, the coagulated particles contained in the form of a larger lump in the secondary chemical treatment water flowing into the lower side of the pressurized flotation zone 44a through the pressurized floating filtration tank 40 are pressurized to separate the suspended scum and the remaining residual particles The microbubbles injected into the condensed sludge are adhered to the microbubbles so that the microbubbles are floated on the inclined wall surface of the filter paper wall in a state in which the lump of the coagulated particles obtained through the secondary chemical treatment is not broken .

The floating scum separation / discharge unit 60 is installed above the separation / discharge area 44b of the pressurization floating filtration tank 40 to collect and discharge the floating scum floating on the water surface during the pressure rising process.

Here, the floating scum separation / discharge unit 60 includes a floating scum collecting tank 63, a scraper 61, and a floating scum discharging pipe 64.

The floating scum collecting tank (63) is configured to form a predetermined floating scum receiving space at a side of the upper side of the discharge side wall of the separated discharge region (44b) of the pressurized floating filtration tank (40).

The scraper 61 is installed above the separation and discharge area 44b of the pressurized floating filtration tank 40 to transfer the floating scum into the floating scum collecting tank 63 to be separated.

Here, the scrapers 61 extend along the width direction on the water surface of the separation / discharge area 44b of the pressurized floating filtration tank 40, and scraper drive motors 62, which are controlled to be movable through the control panel, And a conveyor-type scraper for conveying the scum to the floating scum collecting tank 63.

The floating scum discharging pipe 64 is disposed so as to discharge the floating scum collected in the floating scum collecting tank 63 to the outside.

On the other hand, a treated water discharge preventing bracket 65, which is bent at a predetermined curvature, is provided on the upper end of the sidewall on the discharge side of the floating filtration tank 40 on which the floating scum collecting tank 63 is formed, through which conveyor type scrapers 61, So that the treated water can be prevented from flowing out together with the floating scum collected in the floating scum collecting tank (63).

The filter medium 45 is installed in the middle of the inside of the separate discharge region 44b of the pressurized floating filtration tank 40 so as to adsorb and remove remaining residual particles that have not yet been removed on the pressurized surface by gravity filtration.

 The filtration treatment water discharge unit 70 can discharge the filtration treatment water to the outside through the filtration treatment water discharge pipe 71 that is arranged to connect the filtration treatment water discharge area 44c partitioned below the filter member 45 .

The backwashing apparatus 80 backwashes the filter medium 45 using the air and / or the filtered water to the inside of the filtration treatment water discharge region 44c to remove the residual particles adsorbed through the filter medium from the filter medium 45 .

Here, the backwashing device 80 exemplifies that the backwashing device 80 includes the filtration water washing pump 85 and the backwashing blower 81.

The filtration treatment water washing pump 85 is installed on the bypass pipe 86 branched on the filtration treatment water discharge pipe 71 so as to discharge the filtration treatment water being discharged through the filtration treatment water discharge pipe 71 Backward to the inside of the filtration treatment portion discharge region 44c of the pressurized floating filtration tank 40 and to backwash the filter medium 45 using the filtration treatment water flowing backward.

The backwashing blower 81 is installed on the backwash air pipe 86 which is separately arranged to connect the filtration treatment portion discharge region 44c of the pressurization floating filter tank 40 to the backwash air pipe 86 through the backwash air pipe 86 Air pressure is blown into the filtration treatment portion discharge region 44b of the pressurized floating filtration tank 40 to back up the filter medium 45 using the air pressure.

The backwash water trough 46 is installed on the upper side of the filter material 45 in the separation and discharge area 44b of the pressurization floating filtration tank 40 so that the filtration material 45 So that the residual particles can be smoothly separated and discharged out of the pressurized floating filtration tank 40.

The backwash water discharge unit 90 is connected to the backwash water discharge pipe 44 to be connected between the filter medium 45 and the backwashing water trench 46 in the separate discharge area 44b of the pressurization floating filtration tank 40. [ And the reverse water containing the separated particles in the filtering agent backwashing process is separated and discharged through the filter 91. On the other hand, a reverse water discharge opening / closing valve for opening and closing the reverse water discharge is provided on the reverse water discharge pipe.

As described above, according to the composite type pressurized floating filter apparatus of the present embodiment, the pH adjustment of the influent water, the floating substances and the odor induction through the first chemical treatment section 2 and the second chemical treatment section 3 of the chemical reaction treatment section 1 After the component particles are agglomerated and agglomerated, the agglomerated particles are pressurized in a lump form through the pressurized floating filtration treatment unit 5 to separate the suspended scum and the residual particles, thereby separating and separating the suspended scum from the surface of the water, By separating and discharging the residual particles by filtration method from the lower side of the water surface, it is possible to reduce the facility area and cost of the water treatment apparatus and the operation and management cost by simplifying the structure of the water treatment apparatus using the same and the water treatment process therefor. It is possible to adsorb and remove particles of algae which are odor causing substances.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. And it goes without saying that they belong to the scope of the present invention.

1: chemical reaction processing part 2: first chemical processing part
3: second chemical treatment section 5: pressurized floating filter processing section
10: Water inflow pipe 20: First chemical treatment tank
21, 31, 41: isolation wall 22, 32: drug insertion area
23, 33: chemical mixing zone 25: neutralizer feeder
26: coagulant feeder 27: first agitator
30: Second medicine processor 35: Condenser dispenser
37: Second stirrer 40: Pressurized floating filtration tank
42: filter paper wall 43: treated water inflow area
44: Pressurized floating region 44a: Pressurized floating region
44b: separation and discharge area 44c: filtration treatment water discharge area
45: Filter material 46: Reverse osmosis overflow trench
50: micro bubble generator base 51: micro bubble generator
52: reservoir tank 53: filtration treatment water recirculation pipe
55: Abrasive nozzle (jet plate) 60: Floating scum separation / discharge unit
61: scraper 62: scraper driving motor
63: Floating scum collecting tank 64: Floating scum discharging pipe
65: treated water discharge preventing bracket 70: filtration treated water discharging portion
71: filtration treatment water discharge pipe 80: backwash device
81: Filtration water backwash pump 82: Bypass pipe
85: backwash blower 86: backwash air piping
90: Stationary water discharge unit 91: Stationary water discharge pipe

Claims (12)

Adjusting the pH of the influent water and coagulating the suspended solids and the odor inducing component particles through the primary medicament treatment section and concentrating the agglomerated particles contained in the primary medicament treatment water transferred from the first medicament treatment section through the secondary medicament treatment section into a lump A chemical reaction processing unit for condensing the chemical reaction; And
The coagulated particles contained in the secondary chemical treatment water transferred from the second chemical treatment tank are pressurized by using micro bubbles to separate the floating scum and the remaining residual particles from each other to trap the floating scum on the upper surface of the water surface, And a pressurized floating filtration processing unit for separating and discharging the residual particles from the lower surface of the water by a filtration method.
The method of claim 1,
Wherein the pressurized floating filter portion comprises:
Wherein the second water treatment area is divided into a treated water inflow area and a pressurized floating treatment area through a first isolation wall provided with a lower through hole at the inflow side of the secondary chemical treatment water, A pressurized floating filtration tank which separates the floating treatment region into a pressurized floating region and a separation discharge region;
A micro bubble acid part injecting a micro bubble at a lower side of the pressurized flotation area of the pressurized floating filtration tank so as to pressurize the second chemical treated water flowing through the lower opening of the first separating wall along the inclined surface of the filter paper wall;
A floating scum separation / discharge unit for collecting and separating the floating scum floated above the separation / discharge area of the pressurized floating filtration tank;
A filtering medium installed in the middle of the separation and discharge area of the pressurized floating filtration tank to adsorb and remove the residual particles by gravity filtration; And
And a filtration treatment water discharge unit for discharging the filtration treatment water filtered through the filtration member from the filtration treatment water discharge area partitioned below the filtration member.
3. The method of claim 2,
Wherein the micro-
An acidifier nozzle installed below the pressurized flotation zone of the pressurized floating filtration tank;
A filtration treatment water recirculation pipe connected to the distillation water discharge area of the pressurized floating filtration tank and the anaerobic nozzle to re-purify the filtration treatment water; And
And a microbubble generator installed on the filtration treatment water recirculation pipe to pressurize the filtration treatment water through the anaerobic nozzle forming the microbubble in the recirculated filtration treatment water.
4. The method of claim 3,
Bubble generator disposed on the filtration treatment water recirculation pipe,
And a reservoir tank for storing the microbubble generated by the microbubble generator to adjust the injection pressure of the microbubble generated by the microbubble generator.
3. The method of claim 2,
The floating scum separation /
A floating scum collecting tank provided at one side of the separate discharge region of the pressurized floating filtration tank;
A scraper provided above the separation and discharge region of the pressurized floating filtration tank for transferring the floating scum into the floating scum collecting bath; And
And a floating scum discharge pipe arranged to discharge the floating scum collected in the floating scum collecting tank to the outside,
The method of claim 5,
Wherein the scraper comprises a conveyor type scraper provided on the surface of the separation and discharge area of the pressurized floating filtration tank for scraping and conveying the floating scum.
3. The method of claim 2,
Wherein the pressurized floating filter portion comprises:
A backwash device for backwashing the filter material using air and / or the filtered water into the filtration processing part discharge area; And
And a reverse water discharge unit for discharging backwash water backwashed on the upper side of the filter medium.
8. The method of claim 7,
The back-
A filtration treatment water pump for returning the filtration treatment water being discharged through the filtration treatment water discharge pipe for discharging the filtration treatment water back into the discharge area of the filtration treatment part of the pressurized floating filtration tank; And
And a backwash air blower for blowing up backwash air through a backwash air pipe connecting the filtration processing unit discharge area of the pressurized floating filtration tank.
9. The method of claim 8,
The reverse-
A backwash water discharge pipe connecting the upper side of the filter material of the pressurized floating filtration tank and separating and discharging backwash water having passed through the filter material; And
And a backwash water discharge opening / closing valve for opening / closing the backwash water discharge installed on the backwash water discharge pipe.
8. The method of claim 7,
Wherein the pressurized floating filter portion comprises:
And a backwashing overflow trench installed above the filter medium in the separate discharge area of the pressurized floating filtration tank.
The method of claim 1,
The first drug treatment unit may include:
A first chemical treatment tank in which a first chemical dosing region and a first chemical mixing region are partitioned through a second isolation wall provided with a lower through hole on the water inflow side;
A neutralizer injector installed above the first chemical dosing region of the first chemical treatment tank to inject a neutralizing agent for pH adjustment of the water;
A flocculant dispenser installed at one side of the neutralizer dispenser for dispensing a flocculant to flocculate suspended solids and odor evolving component particles in the inflow water; And
And a first agitator for mixing the neutralizing agent and the coagulant introduced into the chemical mixing zone of the first chemical treatment tank.
12. The method of claim 11,
The second medicament processing unit,
A second chemical treatment zone in which a second chemical dose zone and a second drug concentration zone are defined through a third isolation wall provided with a lower through hole at an inlet side of the first chemical treatment water supplied from the first chemical treatment tank, ;
A coagulant injector installed above the second chemical dosing area of the second chemical treatment tank to inject the coagulant into the first chemical treated water so as to condense the coagulated microaggregated particles in a lump form; And
And a second agitator installed in the second chemical mixing region of the second chemical treatment tank and mixing the introduced coagulant.
KR1020150137843A 2015-09-30 2015-09-30 Water Treatment Device Combined Dissolved Air Flotation and Filtration KR20170038452A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102375964B1 (en) * 2020-12-29 2022-03-18 주식회사 프라미스그린 Pre-treatment screen device and pollution decontamination unit including the same
KR102502278B1 (en) * 2022-08-08 2023-02-21 주식회사 타 셋 Large Scale Recycle Water Treatment System with Improved Denitrification Efficiency

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KR20020018424A (en) 2000-09-01 2002-03-08 전형구 Compensation plate for vertical center raster of deflection yoke
KR100982833B1 (en) 2009-06-25 2010-09-16 주식회사 동아지질 Apparatus of daf for advanced treatment of sewage treated water
KR101305225B1 (en) 2011-07-01 2013-09-12 서울시립대학교 산학협력단 CSOs TREATMENT SYSTEM USING CONTINUOUS WATER MONITORING EQUIPMENTS AND DISSOLVED AIR FLOTATION

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KR20020018424A (en) 2000-09-01 2002-03-08 전형구 Compensation plate for vertical center raster of deflection yoke
KR100982833B1 (en) 2009-06-25 2010-09-16 주식회사 동아지질 Apparatus of daf for advanced treatment of sewage treated water
KR101305225B1 (en) 2011-07-01 2013-09-12 서울시립대학교 산학협력단 CSOs TREATMENT SYSTEM USING CONTINUOUS WATER MONITORING EQUIPMENTS AND DISSOLVED AIR FLOTATION

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102375964B1 (en) * 2020-12-29 2022-03-18 주식회사 프라미스그린 Pre-treatment screen device and pollution decontamination unit including the same
KR102502278B1 (en) * 2022-08-08 2023-02-21 주식회사 타 셋 Large Scale Recycle Water Treatment System with Improved Denitrification Efficiency

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