CN201785276U - Combination cross-flow air floatation water treatment device based on electrocoagulation and secondary filtering - Google Patents
Combination cross-flow air floatation water treatment device based on electrocoagulation and secondary filtering Download PDFInfo
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- CN201785276U CN201785276U CN2010205314445U CN201020531444U CN201785276U CN 201785276 U CN201785276 U CN 201785276U CN 2010205314445 U CN2010205314445 U CN 2010205314445U CN 201020531444 U CN201020531444 U CN 201020531444U CN 201785276 U CN201785276 U CN 201785276U
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Abstract
A combination cross-flow air floatation water treatment device based on electrocoagulation and secondary filtering comprises an air floatation tank (8). The air floatation tank (8) is divided into three chambers by partition plates mounted in the tank, a water inlet (1) and an air dissolved water inlet (2) are connected to an air floatation reaction chamber (9), the air dissolved water inlet (2) is communicated with an outlet of an air dissolution tank, and a perforated water collection pipe (3) is installed at the bottom of a water collection chamber (10). The combination cross-flow air floatation water treatment device is characterized in that an electric coagulator (15) is installed in the air floatation reaction chamber (9), a porous board (12) is installed on the lower portion of a clear water chamber (11), and a filter layer (7) is disposed on the porous board (12). The combination cross-flow air floatation water treatment device is simple in structure, fine in outlet water quality and low in operation cost as no addition of drugs is needed during use.
Description
Technical field
The utility model relates to a kind of water treating equipment, and especially a kind of cross-flow type air-floating apparatus specifically a kind ofly need not dosing and has coagulating and the combination cross-flow type air-floated water treating apparatus of secondary filtration based on electricity of secondary filtration.
Background technology
As everyone knows, the air-flotation type water treating equipment are equipment commonly used in all kinds of water technologies, and as shown in Figure 1, it is comparatively desirable for the purification of water quality of suspended substance proportion about 1.
The air-float water treatment facility mainly is by pressure water and pressure air, thorough mixing in molten cylinder, suddenly decompression discharges again, in air-flotation reactor, discharge countless tiny bubbles, bubble can be adsorbed in uphill process on suspended substance or the oils, make it volume and increase and float, regularly remove by slag scraper, all the other relatively water of cleaning collect by the collecting chamber bottom.
Air supporting relies on bubble absorption to reach the purpose that purifies water, but there are a large amount of bubbles to vanish voluntarily mobile the reaching in bubble rising, the stop process of water inlet, therefore having a lot of proportions to be a bit larger tham 1 suspended substance can descend gradually because of bubble-break, form secondary settlement, influence effluent quality, this problem has restricted the performance of airfloat equipment usefulness, thereby airfloat equipment is commonly used for pre-treatment or middle-chain at present domestic, and non-terminal equipment.
In addition, to improve the suspended substance removal effect in order rising to, also need to add medicament (flocculation agent) when water inlet usually and form alumen ustum, be beneficial to the come-up effect, medicament expense accounts for more than 60% of whole service expense.If can be by other physicochemical method with medicament then to the conserve water processing cost, prevent that medicament Disabled from staying not, increasing water quality has great importance.
Summary of the invention
The purpose of this utility model is can be because bubble breaks and causes proportion to be slightly larger than 1 suspended substance realizing secondary settlement in the bubble uphill process at existing cross-flow type air-floating apparatus, influence the problem of effluent characteristics, and air-float water treatment device needs constantly to add flocculation agent and causes moving high high problem in operational process, design a kind of not only need not dosing but also can overcome because of bubble break cause that treatment effect descends based on electricity with fixed attention and the combination cross-flow type air-floated water treating apparatus of secondary filtration.
The technical solution of the utility model is:
A kind ofly coagulate and the combination cross-flow type air-floated water treating apparatus of secondary filtration based on electricity, it comprises air flotation pool 8, air flotation pool 8 is divided into air-flotation reactor 9 by the dividing plate of installing in the pond, collecting chamber 10 and clean water chamber 11, air-flotation reactor 9 is connected with water-in 1 and dissolved air water import 2, dissolved air water import 2 is connected with the outlet of molten cylinder, the bottom of collecting chamber 10 is equipped with perforation header 3, the bottom that it is characterized in that described air-flotation reactor 9, one side of dissolved air water import 2 is equipped with electrocoagulation device 15, the bottom of clean water chamber 11 is equipped with porous plate 12, drain cap 13 is installed on the prosopyle of porous plate 12, filtering layer 7 is installed on the porous plate 12, the water side of described perforation header 3 is passed dividing plate and is stretched into and be upward through the top that filtering layer 7 stretches into clean water chamber 11 clean water chamber 11 again from the bottom of collecting chamber 10, the water-in of water shoot 5 is arranged in clean water chamber 11, the bottom of porous plate 12, the water outlet of water shoot 5 are positioned at outside the air flotation pool 8; In clean water chamber 11, the bottom of porous plate 12 is equipped with the discharge hole mouth 14 that has blowdown and back flushing concurrently.
The thickness of described filtering layer 7 is 400-600mm, and the particle diameter of filtrate is 0.6～1.2mm.
Described drain 14 is connected with the outlet and the blow-off pipe of molten cylinder respectively by three-way valve.
The ash pit 4 that the top of described collecting chamber 10 is equipped with slag scraper 6 and matches.
The anode of described electrocoagulation device 7 is a metallic aluminium, and negative electrode is a stainless steel plate.
The beneficial effects of the utility model:
The utility model carries out secondary filtration by making the filtering layer of process once more through flocculation treatment water, thoroughly which proportion is slightly larger than 1 fall because of the bubble contaminant filter that is deposited in the clear water zone that breaks, for improving effluent characteristics crucial effect is arranged, can be used as final water through the water quality after the utility model processing, this also makes the cross-flow type air-floated water treating apparatus can be used as terminating unit and uses, greatly reduces the cost of water treatment suite of equipment.
The utility model is simple in structure, is easy to realize, and need not back flushing equipment and can finish back flushing to filtering layer, and it can utilize the sewage draining exit of former usefulness to link to each other with the molten cylinder that produces high pressure water and bubble, utilizes the pressure water of molten cylinder directly to recoil.
The aluminium hydroxide that the utility model utilizes electrolysis principle to produce replaces flocculation agent, and it is low to have a cost, is easy to realize, saves the advantage of running cost, can save running cost more than 60%.The processing efficiency height, no medicament is residual.
Description of drawings
Fig. 1 is the structural representation of existing vertical-flow air flotation device.
Fig. 2 is a structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 2.
A kind ofly coagulate and the combination cross-flow type air-floated water treating apparatus of secondary filtration based on electricity, it comprises air flotation pool 8, air flotation pool 8 is divided into air-flotation reactor 9 by the dividing plate of installing in the pond, collecting chamber 10 and clean water chamber 11, air-flotation reactor 9 is connected with water-in 1 and dissolved air water import 2, the outlet of dissolved air water import 2 and molten cylinder (producing a large amount of small bubbles by dissolved air water import 2 in air-flotation reactor 9 with irregular behind pressure water and the pressure air thorough mixing) is connected, in air-flotation reactor 9, dissolved air water import 2 one sides are equipped with electrocoagulation device 14, it is anode (aluminium block that electrocoagulation device 14 adopts aluminium, aluminium bar or aluminum strip), stainless steel is a negative electrode, producing aluminum ion during anode electrolysis combines the aluminium hydroxide that formation has throwing out and can replace the flocculation agent use with hydroxide ion in the brine electrolysis, by regulating the formation speed of electrolytic speed-controllable hydrogen manufacturing aluminum oxide, realize the adjustable of flocculation dosage, and this is easy to realize on electric.The bottom of collecting chamber 10 is equipped with perforation header 3, the top of collecting chamber 10 is equipped with slag scraper 6 and ash pit 4, the bottom of described clean water chamber 11 is equipped with porous plate 12, ABS drain cap 13 is installed on the prosopyle of porous plate 12, filtering layer 7 is installed on the porous plate 12, the thickness of filtering layer 7 is 400-600mm, it is the quartz sand of 0.6～1.2mm that filtrate can adopt particle diameter, the water side of perforation header 3 is passed dividing plate and is stretched into and be upward through the top that filtering layer 7 stretches into clean water chamber 11 clean water chamber 11 again from the bottom of collecting chamber 10, the water-in of water shoot 5 is arranged in clean water chamber 11, the bottom of porous plate 12, the water outlet of water shoot 5 are positioned at outside the air flotation pool 8; In clean water chamber 11, the bottom of porous plate 12 is equipped with the discharge hole mouth 14 that has blowdown and back flushing concurrently, drain 14 is connected with the outlet and the blow-off pipe of molten cylinder respectively by three-way valve, when needs carry out back flushing to filtering layer, only need open the road valve that is communicated with molten cylinder and can directly utilize the pressure water in the molten cylinder to carry out back flushing, the water of back flushing can be discharged by ash pit 4.
During work, the residence time of processed water in air-floating apparatus, flow velocity was 10m/h about 40min, with filter chamber, filtering velocity basically identical; Thereby there is not a filter chamber problem that blocks water.Back flushing and molten cylinder are realized interlock, need not to establish in addition water pump, and back flushing water outlet and former ash pit are shared.The processing water yield of the present utility model can be: 5～200m
3/ h.
Electrocoagulation of the present utility model is to utilize electrochemical method to produce oxyhydroxide as flocculation agent, ultimate principle is: former water is passed through the electrocoagulation device, knockouts is provided with two electrodes, anode is that aluminium, negative electrode are stainless steel, after connecting direct current, the anode aluminum ion enters the hydroxide radical that produces with catholyte in the water and forms alumine hydroxide colloid, and the long-pending grain of absorption impurity, generates floss.The floss that generates is by bonding numerous air-bubble come-up behind the dissolved air water, and clear water is collected in the clean water basin bottom and used, and the top body refuse is regularly removed to send in the ash pit 4 with slag scraper 6 and discharged outside the air flotation pool.
The utility model does not relate to part to be realized as prior aries that maybe can adopt all same as the prior art such as slag scraper, molten cylinder, perforation headers.
Claims (5)
1. one kind is coagulated based on electricity and the combination cross-flow type air-floated water treating apparatus of secondary filtration, it comprises air flotation pool (8), air flotation pool (8) is divided into air-flotation reactor (9) by the dividing plate of installing in the pond, collecting chamber (10) and clean water chamber (11), air-flotation reactor (9) is connected with water-in (1) and dissolved air water import (2), dissolved air water import (2) is connected with the outlet of molten cylinder, the bottom of collecting chamber (10) is equipped with perforation header (3), the bottom that it is characterized in that described air-flotation reactor (9), one side of dissolved air water import (2) is equipped with electrocoagulation device (15), the bottom of clean water chamber (11) is equipped with porous plate (12), drain cap (13) is installed on the prosopyle of porous plate (12), filtering layer (7) is installed on the porous plate (12), the water side of described perforation header (3) is passed dividing plate and is stretched into and be upward through the top that filtering layer (7) stretches into clean water chamber (11) the clean water chamber (11) again from the bottom of collecting chamber (10), the water-in of water shoot (5) is arranged in clean water chamber (11), the bottom of porous plate (12), the water outlet of water shoot (5) are positioned at outside the air flotation pool (8); In clean water chamber (11), the bottom of porous plate (12) is equipped with the discharge hole mouth (14) that has blowdown and back flushing concurrently.
2. according to claim 1ly coagulate and the combination cross-flow type air-floated water treating apparatus of secondary filtration based on electricity, the thickness that it is characterized in that described filtering layer (7) is 400-600mm, and the particle diameter of filtrate is 0.6～1.2mm.
3. according to claim 1ly coagulate and the combination cross-flow type air-floated water treating apparatus of secondary filtration, it is characterized in that described drain (14) is connected with the outlet and the blow-off pipe of molten cylinder respectively by three-way valve based on electricity.
4. according to claim 1ly coagulate and the combination cross-flow type air-floated water treating apparatus of secondary filtration, it is characterized in that the ash pit (4) that the top of described collecting chamber (10) is equipped with slag scraper (6) and matches based on electricity.
5. according to claim 1ly coagulate and the combination cross-flow type air-floated water treating apparatus of secondary filtration based on electricity, the anode that it is characterized in that described electrocoagulation device (7) is a metallic aluminium, and negative electrode is a stainless steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205314445U CN201785276U (en) | 2010-09-16 | 2010-09-16 | Combination cross-flow air floatation water treatment device based on electrocoagulation and secondary filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205314445U CN201785276U (en) | 2010-09-16 | 2010-09-16 | Combination cross-flow air floatation water treatment device based on electrocoagulation and secondary filtering |
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| CN201785276U true CN201785276U (en) | 2011-04-06 |
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| CN2010205314445U Expired - Lifetime CN201785276U (en) | 2010-09-16 | 2010-09-16 | Combination cross-flow air floatation water treatment device based on electrocoagulation and secondary filtering |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948202A (en) * | 2010-09-16 | 2011-01-19 | 江苏新龙鼎环保成套工程有限公司 | Combined cross flow type floatation water treatment device based on electric coagulation and secondary filtration |
| CN104724843A (en) * | 2015-02-27 | 2015-06-24 | 山东建筑大学 | Novel air-floating filter |
| WO2018115500A1 (en) * | 2016-12-22 | 2018-06-28 | Suez International | Facility and process for treating water |
-
2010
- 2010-09-16 CN CN2010205314445U patent/CN201785276U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948202A (en) * | 2010-09-16 | 2011-01-19 | 江苏新龙鼎环保成套工程有限公司 | Combined cross flow type floatation water treatment device based on electric coagulation and secondary filtration |
| CN101948202B (en) * | 2010-09-16 | 2011-11-30 | 江苏新龙鼎环保成套工程有限公司 | Combined cross flow type floatation water treatment device based on electric coagulation and secondary filtration |
| CN104724843A (en) * | 2015-02-27 | 2015-06-24 | 山东建筑大学 | Novel air-floating filter |
| CN104724843B (en) * | 2015-02-27 | 2017-09-26 | 山东建筑大学 | A kind of Airfloat filtering pond |
| WO2018115500A1 (en) * | 2016-12-22 | 2018-06-28 | Suez International | Facility and process for treating water |
| FR3061169A1 (en) * | 2016-12-22 | 2018-06-29 | Suez International | INSTALLATION AND METHOD FOR TREATING WATER |
| CN110088044A (en) * | 2016-12-22 | 2019-08-02 | 苏伊士国际公司 | For handling the facility and method of water |
| AU2017383081B2 (en) * | 2016-12-22 | 2023-06-01 | Suez International | Facility and process for treating water |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110406 Effective date of abandoning: 20120502 |