KR19980028073A - Circulation wastewater purification device and method - Google Patents

Abstract

The present invention is a circulating wastewater purification device, which employs a pressure flotation method and effectively applies a flocculant, while continuously dispersing a large amount of micronized micro-foams in the wastewater to generate an air filter effect, thereby floating floating materials in water. Ultra-low-strength canisters, which continue to emanate from the discharge valves 19 and 19 'by the operation of the bubble generator, are adsorbed and separated by suspended substances in the water, and the supernatant is separated into the lower layer, Purification is achieved by collection, and purification is performed twice in a tank to improve the quality of purification.

If the water quality of the discharged water is not good due to deterioration of the water quality of the inflowed wastewater and malfunction of the equipment, the incoming wastewater is shut off, and the discharged water of the discharged water chamber H is not discharged by the operation of the circulation pump 6. It flows back into the reaction chamber 2, and is circulated in the reaction treatment tank T2 and the purification treatment tank T1, and is purified and discharged.

Description

Circulation Wastewater Purification System and Method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wastewater treatment, which is an organic wastewater purification device that efficiently applies flocculants, employs a pressure flotation method, and dissipates a large amount of micronized microbubbles in water to efficiently float and separate suspended solids. · It is possible to purify the effluent from the effluent, live sewage, gas station, car wash, etc.

[Technical Field to which the Invention belongs and Prior Art in the Field]

In the treatment of wastewater containing clade particles and suspended solids, a pressurized flotation method is applied, but the existing pressurized flotation apparatus is used as a supplementary role in constructing another wastewater apparatus due to the limitation of efficiency.

As a conventional wastewater purification apparatus, an example of a wastewater purification apparatus using a pressure flotation method is a pressurized pump when wastewater is transferred from a collection tank to a reaction tank, from a reaction tank to a neutralization tank, from a neutralization tank to a flocculation tank, and from a flocculation tank to a pressure flotation tank. Pressurized water by the operation of the air compressor is discharged into the wastewater in the flotation tank to float the floating material, and the wastewater is discharged by purifying and discharged through the aeration tank, sedimentation tank, etc. It is used as an auxiliary part in the wastewater purification process.

The present invention employs a pressure flotation method, and discharges a large amount of micronized micro-foams into the wastewater to generate an air filter effect, thereby highly purifying the wastewater, deteriorating the water quality of the inflowing wastewater and malfunctioning of the equipment. If this is poor, discharge is stopped, the wastewater is circulated again in the tank to be re-purified and discharged when the water quality is good, thereby ensuring the quality of the discharged water, and omitting the auxiliary related devices before and after the device. To provide a miniaturized circulating waste water purification device,

1 is a perspective view of a wastewater purification apparatus

2 is a plan view inside the purification treatment tank T2

3 is a rear cross-sectional view of FIG.

4 is a plan view of M1 and M2 inside

5 is an internal perspective view of M1 · M2

* Explanation of symbols for main parts of the drawings

T1: reaction treatment tank T2: purification treatment tank

2,4: reaction chamber 3: neutralization chamber

5: wastewater supply pump 6: circulation pump

7: blower pump R: inflow pump

8: acid coagulant supply tank 9: alkali coagulant supply tank

10: acid coagulant supply tank 12, 12 ': bubble generator

13 bubble water supply pipe 14 reaction water inlet pipe

15 · 15 ': Pressurized pump 16 · 16': Compressed air pressurized pipe

17 · 17 ': gas-liquid mixer pipe 18 · 18': pressurized water feed pipe

19: discharge valve 20, 20 ', 20: PH control

22: circulating water inlet pipe 23: inlet pipe

24: bubble water supply pipe 25: reaction water outflow pipe

26, 26 ', 27, 27', 28, 28 '

(Means to solve the task)

In the present invention, the upper and lower layers are divided into a purification treatment tank (T2) and a reaction treatment tank (T1), and the upper portion of the reaction treatment tank is divided into a reaction chamber (2), a neutralization chamber (3), and a reaction chamber (4). An acidic coagulant supply tank 8, an alkaline neutralizing agent supplying tank 9, and an acidic coagulant supplying tank 10 are installed at the top of each chamber.

The purification treatment tank T2 is divided into M1 and M2 at both ends, and the middle portion thereof is divided into two parts in length, and A, B, C, D, I ', E, F, G, H, I The bubble generators 12 and 12 'are installed in M1 and M2, (A) and (E) are gas photo exit chambers, and (B), (C) and (F) are floating chambers. , (D) and (G) are purified water chambers, (H) is discharge chambers, and (I ') and (I) are sludge recovery chambers.

The bubble water supply pipe 13 starting from the discharge water chamber H is connected to the pressurized pump 15 in the bubble generator 12, and to the gas-liquid mixer pipe 17 through the required pipe in the pressurized pump, the gas-liquid mixer The pipe 17 is connected to the T-type pipe and bisects and is connected to both ends of the pipe K. In the pipe K, the pressurized water pressure transmission pipe 18 is connected to the photovoltaic chamber A to discharge the valve 19. The compressed air press-fit pipe 16 'of the air compressor is connected to the pipe between the pressurized pump and the gas-liquid mixer pipe 17'.

On the other hand, the pipe 24 starting from the reaction chamber 4 is connected to the pressure pump 15 'of the bubble generator 12', and to the gas-liquid mixer pipe 17 'through the required pipe in the pressure pump. The liquefied mixer pipe 17 'is connected to the T-type pipe and bisected to both ends of the pipe K'. The pressurized water pressure pipe (1 person) is connected to the gas photo exit chamber E from the pipe K '. In connection with the discharge valve 19 'is installed, the compressed air press-fit pipe 16' of the air compressor is connected to the pipe between the pressure pump and the gas-liquid mixer pipe 17 '.

The base is attached to the upper part of the air tank configured as pipes 26, 26 ', 27, 27', and 28, 28 ', and the bubble generator 12 is placed on the upper part of the base. 12 ') is installed.

In the reaction chamber (2), the wastewater supply pipe and the wastewater supply pump (5), the pipe 22 starting from the discharge chamber (H), the circulation pump (6), the PH control (20), and the acid coagulant supply tank (8) Coagulant inlet pipe is installed, neutralizing agent inlet pipe (9), neutralizing agent inlet pipe (9) in the neutralization chamber (3), PH control (20 '), primary purified water inlet pipe and pump (R), PH in the reaction chamber (4). A flocculant inflow pipe is laid in the reaction water outlet pipe 25 and the acid coagulant supply tank 10 to the control 20, the bubble water supply pipe 24, and the discharge chamber E.

In the reaction chamber 2, the neutralization chamber 3, and the reaction chamber 4, pipes for blowing air from the blower pump 7 are connected to each other.

When the coagulant flows into the reaction chamber 2 from the waste water supply and the acid coagulant supply tank 8 by the operation of the waste water supply pump 5, the reaction water adjusted by the PH control is passed through the pipe 14 through the pipe 14. Compressed air is pressed into the pressurized water by the operation of the pressurized pump 15 which is continuously introduced into (A) and supplied with the bubble water from the discharge chamber H, and pressurized compressed air is compressed into the gas-liquid mixer pipe ( In 17), the pressurized water and the compressed air are mixed and processed to generate micronized ultra-low intensity bubbles, and are discharged into the wastewater by the discharge valve 19 of the gas photo outlet chamber A through the bubble pressure pipe 18.

Subsequently, when the primary purified water of the purified water chamber D is transferred to the neutralization chamber 3 by the operation of the pump R and neutralized and transferred to the reaction chamber 4, the flocculant is supplied from the coagulant supply tank 10. The reaction water adjusted by the PH control flows into the gas photo outlet chamber E through the outflow pipe 25, and is supplied to the pressure pump 15 ′ through the supply pipe 24, and the pressure pump 15 ′. Compressed air is pressurized in the compressed air pressurized pipe 16 'to pressurized water by operation of the pressurized water, and pressurized water and compressed air are mixed and processed in the gas-liquid mixer pipe 17' to generate micronized ultra-low intensity bubbles Discharged into the waste water by the discharge valve 19 'of the photo port chamber E through the pipe 18'.

At this time, when the water quality of the discharged water is poor due to deterioration of the water quality of the inflowed wastewater and malfunction of the equipment, the wastewater supply pump 5 is stopped, and the circulation pump 6 is operated so that the discharge water chamber H is defective. The purified water is introduced into the reaction chamber 2, and the wastewater of the purification treatment tank T2 reaction treatment tank T1 is circulated.

Bubbles discharged into the discharge chambers (A) and (E) are forcibly transferred to the flotation chambers (B), (C), and (F) with continuous inflow water as they diffuse into the wastewater, and the supernatant is separated into the lower layer, and the sludge is recovered. Collected through the aisle.

(Example)

Hereinafter, this invention is shown by drawing and the Example is described.

The upper and lower clarification treatment tanks T2, reaction treatment tanks T1, and reaction treatment tank upper sections are divided into a reaction chamber 2, a neutralization chamber 3, and an agglomeration chamber 4, and an upper portion of each chamber. An acid coagulant supply tank 8, an alkaline neutralizer supply tank 9, and an acid coagulant supply tank 10 are installed.

The purifying treatment tank T2 is divided into M1 and M2 at both ends, and the middle portion is divided into two parts by lengths to A, B, C, D, I 'and E, F, G, H, I. In the parallel compartment, bubble generators 12 and 12 'are installed in M1 and M2, (A) and (E) are gas photo exit chambers, (B), (C) and (F) are floating chambers, (D) and (G) are purified water chambers, (H) are discharge chambers, and (I) and (I ') are sludge recovery chambers.

The bubble water supply pipe 13 starting from the discharge chamber H is connected to the pressure pump 15, from the pressure pump to the gas-liquid mixer pipe 17, and from the gas-liquid mixer pipe 17 to the T-type. While being connected to the pipe is bisected and connected to both ends of the pipe (K), in the pipe (K), the pressurized water feed pipe (18) is connected to the photo port chamber (A), the discharge valve (19) is installed, the pressurized pump and The compressed air press-fit pipe 16 of the air compressor is connected to the pipe between the gas-liquid mixer pipes 17.

On the other hand, the pipe 24 starting from the reaction chamber 4 is connected to the pressure pump 15 ', the gas-liquid mixer pipe 17' through the pipe of the required pressure from the pressure pump, the gas-liquid mixer pipe 17 '. Is connected to both ends of the pipe K 'and is connected to both ends of the pipe K'. In the pipe K, the pressurized water pressure supply pipe 18 'is connected to the photo port chamber A so that the discharge valve 19' The compressed air press-fit pipe 16 'of the air compressor is connected to the pipe between the pressurized pump and the gas-liquid mixer pipe 17'.

A base is attached to the upper part of the air tank configured as pipes 26, 26 ', 27, 27', and 28, 28 ', and the bubble generator 12, 12 is placed thereon. ') Is installed.

In the reaction chamber 2, a wastewater supply pump 5, a circulation pump 6, a PH control 20, and an acid coagulant inlet pipe are installed. In the neutralization chamber 3, a neutralizer inlet pipe, a PH control 20 ', In the primary purified water inflow pump (R) and the reaction chamber (4), a reaction water outlet pipe (25) and an acid coagulant inlet pipe are installed in the PH control (20), the bubble water supply pipe (24), and the discharge chamber (E). .

In the reaction chamber 2, the neutralization chamber 3, and the reaction chamber 4, pipes for blowing air from the blower pump 7 are connected to each other.

The operation of the embodiment configured as described above will be described.

When the coagulant flows into the reaction chamber 2 from the waste water supply and the acid coagulant supply tank 8 by the operation of the waste water supply pump 5, the reaction water adjusted by the PH control is passed through the pipe 14 through the pipe 14. Compressed air is pressurized from the compressed air inlet pipe 16 into the pressurized water by the operation of the pressurized pump 15 supplied with the bubbled water from the discharge chamber H at the same time as the continuous inflow into (A). Pressurized water and compressed air are mixed and processed to produce micron ultrafine foam, which is discharged into the wastewater by the discharge valve 19 of the gas photo outlet chamber A through the bubble pumping pipe 18, As the bubble diverges and diffuses, the suspended solids in the water are adsorbed and floated on the surface, and the supernatant is separated into the lower layer, and the aggregated sludge is collected through the recovery passage.

Subsequently, the primary purified water of the purified water chamber (D) is transferred to the neutralization chamber (3), neutralized by the operation of the pump (R), and then transferred to the reaction chamber (4). The reaction water supplied and adjusted by the PH control is supplied to the operation of the pressure pump 15 'receiving the bubble water through the pipe 24 at the same time as the continuous inflow into the gas outlet chamber E through the supply pipe 25. Compressed air is compressed in the compressed air pressurized pipe 16 ', and pressurized water and compressed air are mixed and processed in the gas-liquid mixer pipe 17' to generate micronized ultra-low-strength bubbles, and the bubble pressure pipe (18) When it is discharged into the wastewater by the discharge valve 19 'of the photo port chamber E through'), the micronized ultra-foam bubbles are diverged and diffused, adsorbing the suspended substances in the water and floating on the water surface to agglomerate. The sludge is collected through a recovery passage Secondary purification takes place,

At this time, when the water quality of the discharged water is poor due to the deterioration of the water quality of the inflowed wastewater and the malfunction of the equipment, the wastewater supply pump 5 is stopped and the circulation pump 6 is operated so that the discharge water chamber H is defective. By introducing the purified water into the reaction chamber 2, the wastewater of the purification tank T2 and the reaction tank T1 is re-purified while circulating, and the wastewater is highly purified and discharged.

The present invention, the micro-microns of microns in the wastewater shed a large amount of water to generate an air filter effect, the wastewater is highly purified, and the discharge is stopped when the discharged water is poor due to deterioration of water quality of the incoming wastewater and malfunction of the equipment. By recirculating and purifying water in the tank, the water quality of the discharged water can be discharged by improving the quality of the discharged water, while the purification process is simplified, and the device can be miniaturized to be installed in a narrow place while reducing the water treatment cost.

Claims (4)

The upper and lower layers are divided into a purification tank (T2) and a reaction treatment tank (T1), and the upper portion of the reaction treatment tank is divided into a reaction chamber (2), a neutralization chamber (3), and a reaction chamber (4). An acidic coagulant supply tank 8, an alkaline neutralizing agent supplying tank 9, and an acidic coagulant supplying tank 10 are installed in the upper portion. The purifying treatment tank T2 is divided into M1 and M2 at both ends, and the middle portion is divided into two parts by lengths to A, B, C, D, I 'and E, F, G, H, I. In the parallel compartment, bubble generators 12 and 12 'are installed in M1 and M2, (A) and (E) are gas photo exit chambers, (B), (C) and (F) are floating chambers, (D) and (G) are purified water chambers, (H) are discharge chambers, (I ') and (I) are sludge recovery chambers. The bubble water supply pipe 13 starting from the discharge water chamber H is connected to the pressurized pump 15 in the bubble generator 12, and to the gas-liquid mixer pipe 17 through the required pipe in the pressurized pump, the gas-liquid mixer The pipe 17 is connected to the T-type pipe and bisects and is connected to both ends of the pipe K. In the pipe K, the pressurized water pressure transmission pipe 18 is connected to the gas outlet chamber A to discharge the valve 19. Is installed, and the compressed air pressurized pipe 16 'of the air compressor is connected to the pipe between the pressurized pump and the gas-liquid mixer pipe 17'. On the other hand, the pipe 24 starting from the reaction chamber 4 is connected to the pressure pump 15 'of the bubble generator 12', and to the gas-liquid mixer pipe 17 'through the required pipe in the pressure pump. , The liquefied mixer pipe 17 'is connected to the T-shaped pipe and bisects to both ends of the pipe K', and the pressurized water pressure pipe 18 'from the pipe K' is transferred to the gas port exit chamber E. In connection with this, a torch valve 19 'is installed, and the compressed air press-fit pipe 16' of the air compressor is connected to the pipe between the pressurized pump and the gas-liquid mixer pipe 17 '. The base is attached to the upper part of the air tank configured as pipes 26, 26 ', 27, 27', and 28, 28 ', and the bubble generator 12 is placed on the upper part of the base. 12 ') is installed. In the reaction chamber (2), the wastewater supply pipe and the wastewater supply pump (5), the pipe 22 starting from the discharge chamber (H), the circulation pump (6), the PH control (20), and the acid coagulant supply tank (8) Coagulant inlet pipe is placed, and neutralization chamber (3) is provided in the neutralizing agent supply tank (9), neutralizer inlet pipe, PH control (20 '), primary purified water inlet pipe and pump (R), and reaction chamber (4). Circulating waste water purification, characterized in that the flocculant inlet pipe is laid in the PH control 20, the bubble water supply pipe 24, the discharge water E, the reaction water outlet pipe 25, and the acid coagulant supply tank 10. Device. The circulating pump (6) is operated to re-introduce the primary purified water in the discharge water chamber (H) into the reaction chamber (2) to recirculate in the reaction treatment tank (T2) and the purification treatment tank (T1). The circulating waste water purification treatment method characterized in that the purification process. The circulating waste water purification apparatus according to claim 1, wherein a porous ceramic fired product is loaded inside the gas-liquid mixer pipe (17) (17 '). 4. The wastewater purification apparatus according to claim 3, wherein a steel product composed of multiple lobes is formed around the shaft instead of the porous ceramic plastic product.