CN101948202B - Combined cross flow type floatation water treatment device based on electric coagulation and secondary filtration - Google Patents
Combined cross flow type floatation water treatment device based on electric coagulation and secondary filtration Download PDFInfo
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- CN101948202B CN101948202B CN2010102834298A CN201010283429A CN101948202B CN 101948202 B CN101948202 B CN 101948202B CN 2010102834298 A CN2010102834298 A CN 2010102834298A CN 201010283429 A CN201010283429 A CN 201010283429A CN 101948202 B CN101948202 B CN 101948202B
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Abstract
The invention relates to a combined cross flow type floatation water treatment device based on electric coagulation and secondary filtration, which comprises a floatation tank (8) which is divided into three chambers through baffle plates installed in the tank, wherein a floatation reaction chamber (9) is connected with a water inlet (1) and a dissolved gas water inlet (2), the dissolved gas water inlet (2) is communicated with the outlet of a dissolved gas cylinder, and a perforated water collecting pipe (3) is installed at the lower part of a water collecting chamber (10). The invention is characterized in that the floatation reaction chamber (9) is provided with an electric coagulator (15), a porous plate (12) is installed at the lower part of a clear water chamber (11), and a filtering layer (7) is installed on the porous plate (12). The invention has the advantages of simple structure, good quality of the discharged water, no need of adding medicaments in the using process, and low operating cost.
Description
Technical field
The present invention relates to a kind of water treating equipment, 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 objective of the invention 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.
Technical scheme of the present invention 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 drain 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 15 is a metallic aluminium, and negative electrode is a stainless steel plate.
Beneficial effect of the present invention:
The present invention 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 present invention's 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 present invention 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 present invention 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 Disabled stays.
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 invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
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 15, it is anode (aluminium block that electrocoagulation device 15 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 drain 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 invention can be: 5～200m
3/ h.
Electrocoagulation of the present invention 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 prior aries that maybe can adopt all same as the prior art such as part that the present invention does not relate to such as slag scraper, molten cylinder, perforation header are realized.
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 drain (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 (15) is a metallic aluminium, and negative electrode is a stainless steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102834298A CN101948202B (en) | 2010-09-16 | 2010-09-16 | Combined cross flow type floatation water treatment device based on electric coagulation and secondary filtration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102834298A CN101948202B (en) | 2010-09-16 | 2010-09-16 | Combined cross flow type floatation water treatment device based on electric coagulation and secondary filtration |
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| CN101948202A CN101948202A (en) | 2011-01-19 |
| CN101948202B true CN101948202B (en) | 2011-11-30 |
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| CN2010102834298A Expired - Fee Related CN101948202B (en) | 2010-09-16 | 2010-09-16 | Combined cross flow type floatation water treatment device based on electric coagulation and secondary filtration |
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| CN104261603B (en) * | 2014-10-25 | 2015-09-23 | 哈尔滨工业大学 | The integrated drinking water advanced treatment device of a kind of electric coagulation-electro-flotation/immersion ultrafiltration |
| CN109368883A (en) * | 2018-11-27 | 2019-02-22 | 江苏大学 | A kind of electric flocculation laundrywastes processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2672050Y (en) * | 2003-07-28 | 2005-01-19 | 姜峰 | Electrochemical Processor for waste water |
| CN101215060A (en) * | 2007-12-27 | 2008-07-09 | 江苏工业学院 | Device for treating oil field waste water |
| CN201785276U (en) * | 2010-09-16 | 2011-04-06 | 江苏新龙鼎环保成套工程有限公司 | Combination cross-flow air floatation water treatment device based on electrocoagulation and secondary filtering |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09201586A (en) * | 1996-01-26 | 1997-08-05 | Sanyo Electric Co Ltd | Electrolytic flotation type water-purifying apparatus |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2672050Y (en) * | 2003-07-28 | 2005-01-19 | 姜峰 | Electrochemical Processor for waste water |
| CN101215060A (en) * | 2007-12-27 | 2008-07-09 | 江苏工业学院 | Device for treating oil field waste water |
| CN201785276U (en) * | 2010-09-16 | 2011-04-06 | 江苏新龙鼎环保成套工程有限公司 | Combination cross-flow air floatation water treatment device based on electrocoagulation and secondary filtering |
Non-Patent Citations (1)
| Title |
|---|
| 余志等.涡流电凝聚-气浮-接触过滤组合工艺处理洗车废水的试验研究.《工业用水与废水》.2008,第39卷(第02期), * |
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Owner name: XINLONGDING HOLDING GROUP CO., LTD. Free format text: FORMER NAME: JIANGSU XINLONGDING COMPLETE ENVIRONMENTAL PROTECTION ENGINEERING CO., LTD. |
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Address after: 214215 Jiangsu city of Nanjing province Yixing city and Town Industrial Zone South Patentee after: XINLONGDING HOLDING GROUP Co.,Ltd. Address before: 214215 Jiangsu city of Nanjing province Yixing city and Town Industrial Zone South Patentee before: Jiangsu Xin Longding Environmental Protection Engineering Co.,Ltd. |
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Effective date of registration: 20211115 Address after: 334000 zone a, Luyang Industrial Park, Shangrao high tech Zone, Guangfeng District, Shangrao City, Jiangxi Province Patentee after: Jiangxi longxinding environmental protection equipment Co.,Ltd. Address before: 214215 Nanxin Industrial Zone, HeQiao Town, Yixing City, Nanjing, Jiangsu Province Patentee before: XINLONGDING HOLDING GROUP Co.,Ltd. |
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Granted publication date: 20111130 |