CN202542977U - Ozone oxidative decoloration treating device - Google Patents

Ozone oxidative decoloration treating device Download PDF

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Publication number
CN202542977U
CN202542977U CN2012201972581U CN201220197258U CN202542977U CN 202542977 U CN202542977 U CN 202542977U CN 2012201972581 U CN2012201972581 U CN 2012201972581U CN 201220197258 U CN201220197258 U CN 201220197258U CN 202542977 U CN202542977 U CN 202542977U
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China
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reaction zone
ozone
gas
reaction
partition board
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Expired - Lifetime
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CN2012201972581U
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Chinese (zh)
Inventor
曾科
崔燕平
万红友
邢传宏
郝甜利
刘世豪
郝明辉
张宏超
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Zhengzhou University
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Zhengzhou University
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Abstract

An ozone oxidative decoloration treating device sequentially comprises gas source equipment, an ozone generator, a gas buffer tank, a booster pump, an oxidizing reaction tower, a gas and liquid separating column and a superficial flotation tank. The oxidizing reaction tower comprises a wall, a top plate and a bottom plate, a first partition board and a second partition board are sequentially sleeved inside the wall, the second partition board encircles to form a first reaction zone, the first partition board and the second partition board encircle to form a second reaction zone, and the first partition board and the wall encircle to form a third reaction zone; a first communicating hole is arranged on the upper portion of the first partition board, the third reaction zone is communicated with the second reaction zone via the first communicating hole, a second communicating hole is arranged on the lower portion of the second partition board, and the second reaction zone is communicated with the first reaction zone via the second communicating hole; and gas distributing tubes are arranged at bottoms of the reaction zones, a spraying water distributing tube is arranged on the top of the first reaction zone, and a gas collecting tube and a water collecting tube are respectively arranged at the top and the bottom of the third reaction zone. The ozone oxidative decoloration treating device is high in ozone transfer rate and ozone utilization rate, low in ozone consumption, small in occupied area, large in height-diameter ratio and water depth and high in pressure.

Description

A kind of ozone oxidation decolouring treatment unit
Technical field
The utility model relates to a kind of ozone oxidation decolouring treatment unit.
Background technology
Organic waste waters such as pulping and paper-making are after process pre-treatment and biological treatment; The organism that also has a large amount of difficult for biological degradation in the former water; Be difficult to it is handled with conventional technology, and the strong oxidizing property of ozone can make organic structure generation noticeable change, the organism of unsaturation structure is converted into saturated structure organism; Larger molecular organics is converted into small organic molecule; Adopt after ozone oxidation (in advance) processing, can make materialization handle the effect of fine performance decolouring, deodorizing and organic matter removal aspect, even can also reduce the medicament usage quantity that materialization is handled.
Tradition ozone oxidation reaction device, by three (section) horizontal flows to ozonation aerated reactors in series constitute, about height 5m, each section is partly formed by 4: inhalant region, aeration zone, reaction zone, exhalant region, wherein aeration zone, reaction zone are its cores.But there are some problems in traditional ozone oxidation reaction device, and for example: adopt horizontal flow direction structure, floor space is big, and the reaction times is long, volume is big, and investment is big; Inside reactor is a cavity, and aspect ratio is less, mostly the depth of water is that 5 meters, pressure are little, and the transfer utilization ratio of ozone gas is lower; And on this basis, adopting longer hydraulic detention time, the ozone dosage of requirement is higher.
Therefore, need a kind of new ozone oxidation decolouring of design treatment unit, to satisfy the needs of waste water advanced process field.
The utility model content
The utility model provides a kind of ozone oxidation decolouring treatment unit, and ozone shifts the utilization ratio height, the ozone-depleting amount is low, floor space is less.
In order to solve the problems of the technologies described above; The utility model adopts following technical scheme: a kind of ozone oxidation decolouring treatment unit; Comprise air machinery, ozonizer, gas buffer jar, topping-up pump, oxidizing reaction tower, gas-liquid separation tower, shallow air-floatation pond successively; Described oxidizing reaction tower comprises round shape wall, top board and the base plate of vertical setting, first dividing plate and the second partition of sheathed tubular successively in the wall, and the zone that second partition surrounds is first reaction zone; The zone that surrounds between first dividing plate and the second partition is second reaction zone, and the zone that surrounds between first dividing plate and the wall is the 3rd reaction zone; The top of first dividing plate is provided with first communicating aperture that is communicated with the 3rd reaction zone and second reaction zone, and the bottom of second partition is provided with second communicating aperture that is communicated with second reaction zone and first reaction zone; The bottom of first reaction zone, second reaction zone, the 3rd reaction zone is provided with the gas-distribution pipe that is communicated with the ozone inlet pipe; The top of first reaction zone is provided with the spray water distributor that is communicated with water inlet pipe, and the top of the 3rd reaction zone, bottom are respectively equipped with effuser, header.
The middle and upper part and the middle and lower part of first reaction zone, second reaction zone, the 3rd reaction zone are equipped with two-layer screen, are provided with filler between the screen.
Oxidizing reaction tower height degree is 11-15m, and aspect ratio is 1-2.
The oxidizing reaction tower is the airtight and inner pressure that contains 0.10~0.15Mpa.
Effuser is connected with escape pipe, and escape pipe is provided with air throttle, and escape pipe is connected with pipe connecting, and pipe connecting is provided with stopping valve; Header is connected with rising pipe, and rising pipe is connected with water shoot; The pipe connecting lower end is connected with the gas-liquid separator input aperture with water shoot; The pipe connecting upper end is connected with the gas buffer jar with the gas delivery port of gas-liquid separator.
The wall of screen below is provided with support ring.
The utility model has solved the following problem that traditional ozone oxidation reaction pond exists:
(1) the utility model will solve traditional ozone oxidation reaction pond ozone and shift the not high problem of utilization ratio: the horizontal flow direction structure in traditional ozone oxidation reaction pond, simple structure; Mostly the reaction tank depth of water is 5~6 meters, pressure is little, mass transfer effect is poor; The ozonize gas that device is discharged directly discharges, and the transfer utilization ratio of ozone gas is lower;
(2) the utility model will solve traditional ozone oxidation reaction pond ozone dosage problem of higher;
(3) the utility model will solve traditional ozone oxidation reaction pond floor space problem of higher: traditional ozone oxidation reaction device generally adopts quadrate, horizontal flow direction structure, Steel Concrete material; This horizontal equipment and horizontal positioned form thereof cause its floor space bigger.In addition, generally speaking, the reactor drum influent concentration is higher, and advanced treatment requires effluent quality good, and the Inlet and outlet water concentration difference is big, requires the reactor drum waterpower residence time longer, causes the reaction unit volume bigger, further causes the plant area area bigger.
The utility model ozone shifts the utilization ratio height, the ozone-depleting amount is low, floor space is less, and aspect ratio is big, and the depth of water is big, and pressure is high.The utility model has been compared following concrete advantage with traditional ozone oxidation pond: adopting vertical mixing pattern, internal pressure is normal pressure or low pressure, strengthens the mass transfer of ozone and mixed solution; Through internal structure and piping system optimization, improve ozone oxidation reaction efficient; Ozone oxidation pond through the controlling reactor pressure ratio is traditional is high by 1.0~1.5, and controlled oxidation decomposition reaction degree, the ozone rate that adds are compared with traditional reaction unit and reduced by 40~70%; Through controlled oxidation decomposition reaction degree, effluent color dilution feedback regulation dosage, reduce the advanced treatment working cost.
The beneficial effect of the utility model specifically comprises: with ozone oxidation reaction device construction, ozonize gas-circulating system the air water cycle repeats is contacted through optimizing ozone low-level oxidation degree of depth decolouring treatment system; Promote the raising of the transfer utilization ratio of ozone; Many-sided effects such as treatment system water outlet coupling setting device ozone dosage, the ozone that reduces the ozone reaction device adds rate and advanced treatment running cost.Be respectively the paper waste of 130.0 ~ 210.0mg/L and 80~150 times for COD and colourity; The ozone dosage is that 40.0 ~ 75.0mg/L, duration of contact are when being 0.50~1.00h; Ozone oxidation is respectively 20.0 ~ 33.0% and 50.0 ~ 80.0% to the clearance of COD and colourity; Through ozone oxidation and pneumatically supported advanced treatment, COD and colourity are lower than the emission request of 60.0mg/L and 30 times respectively.The ozone dosage of ozone oxidation advanced treatment is about 150 mg/L generally speaking; Ratio (unit is mg/mg) with ozone dosage and theoretical dosage is that ozone adds rate; The ozone rate of adding of the utility model is 0.27 ~ 0.50mg/mg, and the advanced treatment decolouring mainly is the effect of ozone low-level oxidation.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of oxidizing reaction tower.
Embodiment
Through case the embodiment of the utility model is explained below.6000 m3 waste water are discharged in certain factory secondary biochemical treatment pond every day, and secondary biochemical treatment pond effluent COD concentration and colourity are 130.0 ~ 210.0mg/L and 80~150 times, adopt the system and the oxidizer unit of the utility model to carry out advanced treatment.Like Fig. 1, shown in 2; A kind of ozone oxidation decolouring treatment unit; Comprise air machinery S01, ozonizer S02, gas buffer jar S03, topping-up pump S04, oxidizing reaction tower S05, gas-liquid separation tower S06, shallow air-floatation pond S07 successively; Described oxidizing reaction tower S05 comprises round shape wall 6, top board 13 and the base plate 26 of vertical setting, can adopt stainless steel or Reinforced Concrete Materials form on the structure.First dividing plate 7 and second partition 8 of sheathed tubular successively in the wall 6; The zone that second partition 8 surrounds is first reaction zone 27; The zone that surrounds between first dividing plate 7 and the second partition 8 is that the zone that surrounds between second reaction zone, 28, the first dividing plates 7 and the wall 6 is the 3rd reaction zone 29; The top of first dividing plate 7 is provided with first communicating aperture 12 that is communicated with the 3rd reaction zone 29 and second reaction zone 28, and the bottom of second partition 8 is provided with second communicating aperture 30 that is communicated with second reaction zone 28 and first reaction zone 27; The bottom of first reaction zone 27, second reaction zone 28, the 3rd reaction zone 29 is provided with and gas-distribution pipe 25, and gas-distribution pipe 25 is communicated with ozone inlet pipe 4 at the c place, and ozone inlet pipe 4 is provided with under meter 5, the even scatterer 24 of gas-distribution pipe 25 terminal houses.The top of first reaction zone 27 is provided with spray water distributor 15, and spray water distributor 15 is communicated with water inlet pipe 1 at a place, and water inlet pipe 1 is provided with under meter 3.The top of the 3rd reaction zone 29, bottom are respectively equipped with effuser 16, header 23; Effuser 16 is connected with escape pipe 17 at the d place, and escape pipe 17 is provided with air throttle 18, and escape pipe 17 is connected with pipe connecting 19, and pipe connecting 19 bottoms are provided with stopping valve 20; Header 23 is connected with rising pipe 22, and rising pipe 22 is connected with water shoot 21 at the b place; Pipe connecting 19 lower ends are connected with gas-liquid separator S06 input aperture with water shoot 21; Pipe connecting 19 upper ends are connected with gas buffer jar S03 with the gas delivery port of gas-liquid separator S06.The e place of oxidizing reaction tower S05 can take over and stopping valve 14, and g is for being manhole 2.Oxidizing reaction tower S05 highly is 11-15m, and aspect ratio is 1-2.Oxidizing reaction tower S05 is the airtight and inner pressure that contains 0.10~0.15Mpa.
The middle and upper part and the middle and lower part of first reaction zone 27, second reaction zone 28, the 3rd reaction zone 29 are equipped with two-layer screen 11, are provided with filler 10 between the screen 11.The wall 6 of screen 11 belows is provided with support ring 9.Utilize support ring 9 and screen 11 that two-layer irony silk screen or ceramic ring-like filler 10 are installed, filler has higher voidage and specific surface area, can improve oxidation efficiency.Along establishing the third order reaction district on the diametric(al), internal layer is first reaction zone 27 in the wall 6, and the middle level is second reaction zone 28, and skin is the 3rd reaction zone 29.
The novel ozone oxidized reaction unit ozonize gas-recycling plant that the utility model relates to is: ozone oxidation reaction device inner top is provided with gap, effuser 16, escape pipe 17 and pressure limiting valve 18; Outer setting pipe connecting 19 and stopping valve 20; The gas-liquid separator bottom of ozone oxidation advanced treatment treatment system is connected to the treating water delivery pipe; The top is connected to the divided gas flow escape pipe, and the gas that gas-liquid separator escape pipe and oxidation reaction apparatus pipe connecting 19 are got rid of gets into ozonize gas buffer jar; Inject oxidation reaction apparatus through the pump topping-up pump again; Form simple circulating pipe system, rely on gas, water repeat contact and high pressure is forced effect of mass transmitting, improve ozone and shift utilization ratio.
The precise internal structure and the higher operating pressure of the ozone reaction device of the utility model, the ozonize gas-circulating system makes the contact of air water cycle repeats, promotes the raising of the transfer utilization ratio of ozone, reduces ozone and adds rate.Ozone low-level oxidation degree of depth decolouring treatment system; According to the colourity of final actual water outlet and the effluent color dilution difference of requirement; Through changing the ozonizer range; Regulate ozonize gas inlet pipe 4, variable valve and under meter 5, the ozone dosage of ozone reaction device is regulated in coupling, reduces ozone and adds rate.And ozone low-level oxidation degree of depth decolouring treatment system is to be processing target with degree of depth decolouring, and it is lower that the ozone of reaction unit adds rate, reduces by 7~11% approximately than traditional ozone oxidation reaction pond.Therefore, with traditional ozone oxidation reaction pond relatively, many-sided effect such as system and device construction, system, coupled adjusting, it is lower to make the ozone of ozone reaction device add rate, can appropriateness reduction running cost.
The giving vent to anger of ozone oxidation reaction device of the utility model and giving vent to anger of knockout drum are back to surge tank and form the recycle system, rely on repeat contact and the high pressure of gas, water to strengthen effect of mass transmitting and improve ozone and shift utilization ratio.
Ozone Oxidation Treatment system of the utility model and oxidation reaction apparatus structure; Ozonize gas high pressure reinforcing mass transfer contacts with circulation; System is in the low-level oxidation target and many-sided effect such as dosage are regulated in coupling, and it is lower to make the ozone of ozone reaction device add rate.

Claims (6)

1. ozone oxidation decolouring treatment unit; It is characterized in that: comprise air machinery, ozonizer, gas buffer jar, topping-up pump, oxidizing reaction tower, gas-liquid separation tower, shallow air-floatation pond successively; Described oxidizing reaction tower comprises round shape wall, top board and the base plate of vertical setting; First dividing plate and the second partition of sheathed tubular successively in the wall; The zone that second partition surrounds is first reaction zone, and the zone that surrounds between first dividing plate and the second partition is second reaction zone, and the zone that surrounds between first dividing plate and the wall is the 3rd reaction zone; The top of first dividing plate is provided with first communicating aperture that is communicated with the 3rd reaction zone and second reaction zone, and the bottom of second partition is provided with second communicating aperture that is communicated with second reaction zone and first reaction zone; The bottom of first reaction zone, second reaction zone, the 3rd reaction zone is provided with the gas-distribution pipe that is communicated with the ozone inlet pipe; The top of first reaction zone is provided with the spray water distributor that is communicated with water inlet pipe, and the top of the 3rd reaction zone, bottom are respectively equipped with effuser, header.
2. ozone oxidation decolouring treatment unit according to claim 1, it is characterized in that: the middle and upper part and the middle and lower part of first reaction zone, second reaction zone, the 3rd reaction zone are equipped with two-layer screen, are provided with filler between the screen.
3. ozone oxidation decolouring treatment unit according to claim 1 and 2, it is characterized in that: oxidizing reaction tower height degree is 11-15m, aspect ratio is 1-2.
4. ozone oxidation decolouring treatment unit according to claim 3, it is characterized in that: the oxidizing reaction tower is the airtight and inner pressure that contains 0.10~0.15Mpa.
5. ozone oxidation decolouring treatment unit according to claim 1, it is characterized in that: effuser is connected with escape pipe, and escape pipe is provided with air throttle, and escape pipe is connected with pipe connecting, and pipe connecting is provided with stopping valve; Header is connected with rising pipe, and rising pipe is connected with water shoot; The pipe connecting lower end is connected with the gas-liquid separator input aperture with water shoot; The pipe connecting upper end is connected with the gas buffer jar with the gas delivery port of gas-liquid separator.
6. ozone oxidation decolouring treatment unit according to claim 2, it is characterized in that: the wall of screen below is provided with support ring.
CN2012201972581U 2012-05-04 2012-05-04 Ozone oxidative decoloration treating device Expired - Lifetime CN202542977U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642950A (en) * 2012-05-04 2012-08-22 郑州大学 Device utilizing ozone to carry out oxidization decoloration treatment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642950A (en) * 2012-05-04 2012-08-22 郑州大学 Device utilizing ozone to carry out oxidization decoloration treatment
CN102642950B (en) * 2012-05-04 2013-08-28 郑州大学 Device utilizing ozone to carry out oxidization decoloration treatment

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Granted publication date: 20121121

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Granted publication date: 20121121

Effective date of abandoning: 20130828

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