CN103058433A - Bicirculating catalytic ozone water-treatment device and method - Google Patents
Bicirculating catalytic ozone water-treatment device and method Download PDFInfo
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- CN103058433A CN103058433A CN2013100297600A CN201310029760A CN103058433A CN 103058433 A CN103058433 A CN 103058433A CN 2013100297600 A CN2013100297600 A CN 2013100297600A CN 201310029760 A CN201310029760 A CN 201310029760A CN 103058433 A CN103058433 A CN 103058433A
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Abstract
The invention discloses a bicirculating catalytic ozone water-treatment device which solves the problems of reduced oxidation efficiency and the like caused because fluids inside the traditional device can only flow in a unicyclic way. The bicirculating catalytic ozone water-treatment device comprises three cylinders, wherein the three cylinders are concentrically arranged and form inner and outer bicirculation with strong catalytic ozonation and weak catalytic ozonation mutually separated in space; the outer circulation area decomposes the components contained in oxidable organics inside wastewater through active carbon catalytic ozonation with low catalytic characteristic by utilizing the adsorption characteristics of active carbon; and the inner circulation area realizes that hydroxyl radicals with oxidation efficiency higher than that of ozonation are generated through ultraviolet light and TiO2 concerted catalytic ozonation and oxygenizes organic molecules which are contained in the wastewater and difficult to degrade by utilizing the hydroxyl radicals. The bicirculating catalytic ozone water-treatment device disclosed by the invention can be used for realizing the space separation of organic pollutants contained in water according to difficulty degree, thereby improving the oxidation efficiency, shortening the hydraulic retention time and reducing the ultraviolet lamp and ozone consumption. The invention also provides a method for carrying out water treatment by using the bicirculating catalytic ozone water-treatment device.
Description
Technical field
The present invention relates to a kind of catalysis ozone method water treatment device and method.
Background technology
Along with going deep into of Water Environmental Pollution Control, eliminate to enter the vital task that lasting organic pollutant in the water body has become field of Environment Protection.Ozone is mainly used in water body disinfection as a kind of oxygenant of green, the history of existing last 100 years, but make slow progress in the application in other field.In the last few years, along with the reduction of ozone generating apparatus cost and the raising of reliability thereof, ozone application in the Persistent organic pollutants in eliminating water surrounding is more and more extensive, but separately ozone does not limit its application to the oxidation efficiency of some hardly degraded organic substances is high, so the catalysis ozone method is arisen at the historic moment and development.The applicant discloses a kind of suspension activated carbon photocatalysed ozone water processing unit (201020505342.6), this device adopts single cycle, utilize charcoal absorption, the weak catalysis ozone of gac and ultraviolet light intensity catalysis ozone generate hydroxyl radical free radical effect oxidation organic pollutants, reach the purpose of water treatment, but the strong catalysis ozone in the device does not spatially separate with weak catalysis ozone effect, cause being restricted based on the organic oxidation of weak catalysis ozone and the adsorption of gac, hydraulic detention time is increased, correspondingly increase the consumption of ozone amount and UV-light.
Summary of the invention
The purpose of this invention is to provide a kind of pair of circulation catalysis ozone water treatment device, this device utilizes the air lift principle, constructed the spatially two circulation separated from one another of strong catalysis ozone and weak catalysis ozone, give full play to ozone oxidation, charcoal absorption, catalyzed oxidation and the effect separately of ultraviolet catalytic ozone oxidation, make organic pollutants carry out spatial isolation according to the oxidation complexity, improve oxidation efficiency, reduced hydraulic detention time, reduced ultraviolet lamp and ozone-depleting.
The present invention also provides the method for using this water treatment device to carry out water treatment simultaneously.
For achieving the above object, the technical solution used in the present invention is: a kind of pair of circulation catalysis ozone water treatment device, comprise urceolus, middle cylinder, inner core, ultraviolet lamp, ozonize gas distributor and gas-liquid-solid separator, urceolus wherein, middle cylinder and inner core are set with one heart, the bottom of urceolus arranges base plate, and the top of urceolus arranges water-in; The lower edge of described inner core is fixed on the outer tube end plate, top and bottom at inner tube wall, along barrel some bar holes are set equidistantly respectively circumferentially, the bar hole on inner core top is set with screen cloth outward, the upper cover plate that arranges suitable for reading of inner core arranges centre hole on the upper cover plate, also be evenly equipped with the circular hole identical with the centre hole specification on the circumference take centre hole as the center of circle, insert respectively the ultraviolet lamp that cover has quartz glass sleeve in centre hole and the circular hole, the cover in the centre hole has the ultraviolet lamp of quartz glass sleeve also to overlap outward TiO is arranged
2The net cylinder; Place some layers of porcelain ball on the base plate between above-mentioned urceolus and the inner core, the total height of some layers of porcelain ball is higher than the top of inner core bottom bar hole; The upper edge of described middle cylinder is lower than the bottom of inner core top bar hole, leave the gap between the lower edge of middle cylinder and the porcelain ball, in the bottom of middle cylinder, annular space between middle cylinder and inner core the ozonize gas distributor is set, the flange suitable for reading of urceolus connects gas-liquid-solid separator; Described gas-liquid-solid separator comprises matrix, outer sleeve, baffling cylinder and separating tube, and the matrix of separator is the cylinder that the bottom is taper, the upper edge of matrix be higher than the bar hole on inner core top the top, be lower than the upper edge of inner core; Above-mentioned matrix arranges outer sleeve outward, surrounds endless groove between outer sleeve and matrix outer wall, and the sidewall of outer sleeve sets out the mouth of a river, and water outlet is lower than the upper edge of matrix; Fixing and basic body concentric baffling cylinder in the matrix, the upper edge of baffling cylinder is higher than the upper edge of matrix, and the lower edge of baffling cylinder is lower than the upper edge of matrix; Concentric fixedly separating tube in the baffling cylinder, the bottom outward of separation barrel, the lower edge of separating tube is lower than the upper edge of middle cylinder, and the upper edge of separating tube is lower than the upper edge of matrix, is higher than the lower edge of baffling cylinder, and the lower port diameter of separating tube is greater than the diameter of baffling cylinder; Also be filled with gac in the device.
The method of using above-mentioned pair of circulation catalysis ozone water treatment device to carry out water treatment is:
1, sewage is by the water-in input of device, the middle cylinder of device is the up-flow district with the space of the two encirclement of inner core, the space of inner core inside is that the stream district falls in internal recycle, the space that urceolus and middle cylinder surround is that the stream district falls in outer circulation, simultaneously ozonize gas enters the up-flow district from inlet mouth, this district and inside and outside cycle down stream district are different because of the contained gas volume of internal liquid, produce density difference, and then the impellent of generation liquid circulation;
When 2, drainage flow is to the separating tube position, fall the stream district because screen cloth obstruct gac enters into internal recycle, fall the stream district so gac under the dual function of self gravitation and baffle, only enters into outer circulation; And the ozonize gas in the sewage, by circulating water flow carry secretly enter in and outer circulation stream district falls;
3, up-flow district and outer circulation are fallen the outer circulation of carrying out liquid between the stream district and are flowed, and in this flow circuit process, utilize the characterization of adsorption of gac, and the activated carbon catalysis ozone by weak catalysis characteristics, with in the waste water easily the organic constituents of oxidation decompose;
4, it is mobile that the internal recycle that carries out liquid between the stream district falls in up-flow district and internal recycle, when internal recycle flows, and UV-light and TiO
2Concerted catalysis ozone generates the hydroxyl radical free radical higher than ozone oxidation usefulness, utilizes the organic molecule of difficult degradation in the hydroxyl radical free radical oxidized waste water.
The specific works principle of this device is:
Difficult-degradation organic sewage flows into outer circulation by water-in and falls the stream district, ozonize gas form with microbubble behind annular gas distribution pipe and aeration head enters the up-flow district simultaneously, form the air-water mixed solution, cause the up-flow district different from the density of inside and outside cycle down stream district liquid, produce the impellent of liquid circulation, fall the interval outer circulation of flowing of stream and fall the interval internal recycle that flows of stream in up-flow district and internal recycle so formed in up-flow district and outer circulation.These two cycle through the mutual lotus root connection in up-flow district, and the size of adjusting the ozonize gas volume can change the impellent of liquid circulation, realizes in check inside and outside circulation; In the working cycle, the effect of carrying secretly of circulating water flow makes ozonize gas enter interior and the stream district falls in outer circulation, increases the residence time of ozone in installing, and has greatly improved the utilization ratio of ozone, has reduced the dosage of ozone;
Cycle down stream is distinguished outside, the effect of carrying secretly of outer circulation liquid makes activated carbon granule be in the suspended motion state, and constantly with the liquid circulation campaign, strengthened with waste water in the effect of mass transmitting of organism and ozonize gas, improved the efficient of charcoal absorption and catalysis ozone;
In addition, the ozonize gas that the internal recycle current are carried secretly enters internal recycle and falls the stream district, with the ultraviolet lamp that arranges in the district with by TiO
2The net cylinder that fiber is made interacts, and has realized UV-light and TiO
2Concerted catalysis ozone generates the hydroxyl radical free radical (OH) higher than ozone oxidation usefulness, utilizes the organic molecule of hydroxyl radical free radical oxidized waste water difficult degradation, make its mineralising and effectuation, and utilize the lotus root connection effect in up-flow district, and participating in outer circulation and internal recycle, the O3 catalytic oxidation effect circulates.
The invention effect:
1, water treatment device of the present invention, two the circulating of having utilized the air lift principles of construction, Organic Pollutants in Wastewater is separated according to oxidation difficulty or ease implementation space, reached the combination of the independent oxidation of ozone and O3 catalytic oxidation function, improved O3 catalytic oxidation efficient 20% ~ 40%, reduce hydraulic detention time 25% ~ 30%, and reduced the ultraviolet lamp energy consumption;
2, carry out two circulating in the device, strengthened the effect of mass transmitting between ozonize gas and liquid, the effect of carrying secretly of the interior downward liquid flow in stream district is fallen simultaneously, increased ozonize gas residence time in device, greatly improve the utilization ratio of ozone, reduced the dosage 10 ~ 15% of ozone.
Description of drawings
Fig. 1 is the structural representation of of the present invention pair of circulation catalysis ozone water treatment device.
Fig. 2 is the structural representation of inner core.
Fig. 3 is the A-A view among Fig. 1.
Fig. 4 is the structural representation of ozonize gas distributor.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing:
By shown in Figure 1: a kind of pair of circulation catalysis ozone water treatment device, comprise that urceolus 4, middle cylinder 5, inner core 6, cover have ultraviolet lamp 8, ozonize gas distributor 3 and the gas-liquid-solid separator 12 of quartz glass sleeve 7, urceolus 4 wherein, middle cylinder 5 and inner core 6 are set with one heart, in order to guarantee relatively firm between above-mentioned three cylinders, some fixedly grizzly bars 10 are set between two cylinders respectively; The bottom of described urceolus 4 arranges base plate 1, and the top of urceolus 4 arranges water-in 11; Again in conjunction with Fig. 2, shown in Figure 3: the lower edge of described inner core 6 is fixed on the base plate 1 of urceolus, top and bottom at inner tube wall, along barrel some upper bar hole 6-4 and some lower bar hole 6-5 are set equidistantly respectively circumferentially, the upper bar hole 6-4 of inner core is set with screen cloth 14 outward, the upper cover plate 6-3 that arranges suitable for reading of inner core 6, centre hole 6-2 is set on the upper cover plate 6-3, also be evenly equipped with the circular hole 6-1 identical with centre hole 6-2 specification on the circumference take centre hole 6-2 as the center of circle, insert respectively the ultraviolet lamp 8 that cover has quartz glass sleeve 7 in centre hole 6-2 and the circular hole 6-1, the cover in the centre hole 6-1 has the ultraviolet lamp 8 outer also covers of quartz glass sleeve 7 to have by TiO
2The net cylinder 9 that fiber is made; Place some layers of porcelain ball 2 on the base plate 1 between above-mentioned urceolus 4 and the inner core 6, the total height of some layers of porcelain ball 2 is higher than the top of the lower bar hole 6-5 of inner core 6; The upper edge of described middle cylinder 5 is lower than the bottom of the upper bar hole 6-4 of inner core, leave the gap between the lower edge of middle cylinder 5 and the porcelain ball 2, in the bottom of middle cylinder 5, annular space between middle cylinder 5 and inner core 6, ozonize gas distributor 3 is set, by shown in Figure 4: above-mentioned ozonize gas distributor 3, comprise inlet pipe 3-1 and annular gas distribution pipe 3-2, circumferential uniform some aeration head 3-3 along annular gas distribution pipe 3-2, the inlet pipe 3-1 of annular gas distribution pipe 3-2 passes middle barrel and wall of the outer-rotor, is connected with the ozonize gas storage container; The flange suitable for reading of above-mentioned urceolus 4 connects gas-liquid-solid separator 12, described gas-liquid-solid separator 12, comprise matrix 12-1, outer sleeve 12-3, baffling cylinder 12-5 and separating tube 12-7, matrix 12-1 wherein is the cylinder that the bottom is taper, the upper edge of matrix 12-1 be higher than the upper bar hole 6-4 of inner core the top, be lower than the upper edge of inner core 6; Above-mentioned matrix 12-1 arranges outer sleeve 12-3 outward, surrounds endless groove 12-2 between outer sleeve 12-3 and matrix 12-1 outer wall, and the sidewall of outer sleeve 12-3 sets out the mouth of a river 13, and water outlet 13 is lower than the upper edge of matrix 12-1; Pass through fixedly baffling cylinder 12-5 of grizzly bar 12-4 in the matrix 12-1, baffling cylinder 12-5 is concentric with matrix 12-1, and the upper edge of baffling cylinder 12-5 is higher than the upper edge of matrix 12-1, and the lower edge of baffling cylinder 12-5 is lower than the upper edge of matrix 12-1; Pass through fixedly separating tube 12-6 of grizzly bar 12-4 in the baffling cylinder 12-5, the bottom outward of separating barrel, the lower edge of separating tube 12-6 is lower than the upper edge of middle cylinder 5, the upper edge of separating tube 12-6 be lower than matrix 12-1 upper edge, be higher than the lower edge of baffling cylinder 12-5, the lower port diameter of separating tube 12-6 is greater than the diameter of baffling cylinder 12-5; Also load gac 15 in the device.
Use above-mentioned pair of circulation catalysis ozone water treatment device to the method that the sewage that contains organic pollutant carries out water treatment to be:
1, sewage is flowed into by the water-in 11 of device, the middle cylinder 5 of device is up-flow district I with the space of inner core 6 the two encirclement, the space that inner core 6 inside surround is that stream district II falls in internal recycle, the space of urceolus 4 and 5 the two encirclement of middle cylinder is that stream district III falls in outer circulation, simultaneously ozonize gas 16 is from the effect of inlet mouth 3-1 by annular gas distribution pipe 3-2 and aeration head 3-3, enter up-flow district I, this the district with in, outer circulation is fallen the stream district because of the difference of the contained gas volume of internal liquid, produce density difference, and then the impellent of generation liquid circulation, simultaneously ozonize gas 16 is under the carrying of liquid circulation current, in entering into, the stream district falls in outer circulation;
2, the density difference between stream district liquid falls in up-flow district and outer circulation, the outer circulation that produces liquid is flowed, in this flow circuit process, gac 15 catalysis ozones, the simultaneously adsorption of gac 15 has prolonged the difficult degradation small organic molecule residence time 1.0 ~ 3.0h, and improves its oxidation mineralising efficient 5.0% ~ 15%;
3, the density difference between stream district II liquid falls in up-flow district and internal recycle, and the internal recycle that produces liquid flows, and when internal recycle flowed, because the effect of screen cloth 14, gac 15 can not enter into internal recycle and fall stream district II, in this district, and UV-light and TiO
2Concerted catalysis ozone generates the hydroxyl radical free radical (OH) higher than ozone oxidation usefulness, utilizes the organic molecule of hydroxyl radical free radical oxidized waste water difficult degradation, makes its mineralising and effectuation;
4, internal recycle flows and outer circulation flows through the up-flow district and connects each other, and outer circulation is by the activated carbon catalysis ozone of weak catalysis characteristics, the easy organic constituents of oxidation in the oxidized waste water; UV-light and the TiO of the strong catalysis characteristics of internal recycle utilization
2The fiber composite catalysis ozone, dysoxidizable organic constituents in the oxidized waste water, realize that Organic Pollutants in Wastewater is according to the separation spatially of oxidation difficulty or ease, reached the combination of the independent oxidation of ozone and O3 catalytic oxidation function, improved O3 catalytic oxidation efficient 20% ~ 40%, reduce hydraulic detention time 25% ~ 30%, reduced accordingly ultraviolet lamp and ozone-depleting amount;
5, difficult-degradation organic sewage is in the motion of inside and outside intercycle random rotation, and the catalysed oxidn that constantly circulates is discharged finally by water outlet 13.
Claims (2)
1. two circulation catalysis ozone water treatment device, comprise urceolus, middle cylinder, inner core, ultraviolet lamp, ozonize gas distributor and gas-liquid-solid separator, it is characterized in that: described urceolus, middle cylinder and inner core are set with one heart, and the bottom of urceolus arranges base plate, and the top of urceolus arranges water-in; The lower edge of described inner core is fixed on the outer tube end plate, top and bottom at inner tube wall, along barrel some bar holes are set equidistantly respectively circumferentially, the bar hole on inner core top is set with screen cloth outward, the upper cover plate that arranges suitable for reading of inner core arranges centre hole on the upper cover plate, also be evenly equipped with the circular hole identical with the centre hole specification on the circumference take centre hole as the center of circle, insert respectively the ultraviolet lamp that cover has quartz glass sleeve in centre hole and the circular hole, the cover in the centre hole has the ultraviolet lamp of quartz glass sleeve also to overlap outward TiO is arranged
2The net cylinder; Place some layers of porcelain ball on the base plate between above-mentioned urceolus and the inner core, the total height of some layers of porcelain ball is higher than the top of inner core bottom bar hole; The upper edge of described middle cylinder is lower than the bottom of inner core top bar hole, leave the gap between the lower edge of middle cylinder and the porcelain ball, in the bottom of middle cylinder, annular space between middle cylinder and inner core the ozone gas sparger is set, the flange suitable for reading of urceolus connects gas-liquid-solid separator; Described gas-liquid-solid separator comprises matrix, outer sleeve, baffling cylinder and separating tube, and the matrix of separator is the cylinder that the bottom is taper, the upper edge of matrix be higher than the bar hole on inner core top the top, be lower than the upper edge of inner core; Above-mentioned matrix arranges outer sleeve outward, surrounds endless groove between outer sleeve and matrix outer wall, and the sidewall of outer sleeve sets out the mouth of a river, and water outlet is lower than the upper edge of matrix; Fixing and basic body concentric baffling cylinder in the matrix, the upper edge of baffling cylinder is higher than the upper edge of matrix, and the lower edge of baffling cylinder is lower than the upper edge of matrix; Concentric fixedly separating tube in the baffling cylinder, the bottom outward of separation barrel, the lower edge of separating tube is lower than the upper edge of middle cylinder, and the upper edge of separating tube is lower than the upper edge of matrix, is higher than the lower edge of baffling cylinder, and the lower port diameter of separating tube is greater than the diameter of baffling cylinder; Also be filled with gac in the device.
2. the right to use method that requires 1 described pair of circulation catalysis ozone water treatment device to carry out water treatment is:
(1), sewage is by the water-in input of device, the middle cylinder of device is the up-flow district with the space of the two encirclement of inner core, the space of inner core inside is that the stream district falls in internal recycle, the space that urceolus and middle cylinder surround is that the stream district falls in outer circulation, ozonize gas enters the up-flow district from inlet mouth, this district and inside and outside cycle down stream district are different because of the contained gas volume of internal liquid, produce density difference, and then the impellent of generation liquid circulation;
(2), drainage flow when the separating tube position enter into internal recycle and fall the stream district because screen cloth intercepts gac, the stream district falls so gac under the dual function of self gravitation and baffle, only enters into outer circulation; And the ozonize gas in the sewage, by circulating water flow carry secretly enter in and outer circulation stream district falls;
(3), up-flow district and outer circulation fall the outer circulation of carrying out liquid between the stream district and flow, and in this flow circuit process, utilizes the characterization of adsorption of gac, and the activated carbon catalysis ozone by weak catalysis characteristics, with in the waste water easily the organic constituents of oxidation decompose;
(4), up-flow district and internal recycle fall the internal recycle that carries out liquid between the stream district and flow, when internal recycle flows, UV-light and TiO
2Concerted catalysis ozone generates the hydroxyl radical free radical higher than ozone oxidation usefulness, utilizes the organic molecule of difficult degradation in the hydroxyl radical free radical oxidized waste water.
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| CN103964614A (en) * | 2014-05-28 | 2014-08-06 | 南京麦得文环保科技有限公司 | Compound ozone light-catalyzed reaction device |
| CN103979666A (en) * | 2014-05-28 | 2014-08-13 | 南京麦得文环保科技有限公司 | Integrated ozone light-catalyzed reaction device |
| CN104150709A (en) * | 2014-08-08 | 2014-11-19 | 中国海洋石油总公司 | Embedded biological pre-oxidization aerated filter advanced-treatment method |
| CN104192981A (en) * | 2014-07-24 | 2014-12-10 | 浙江清华长三角研究院 | Activated carbon catalytic ozonation device and sewage treatment process thereof |
| CN104556347A (en) * | 2014-12-15 | 2015-04-29 | 浙江中凯瑞普环境工程股份有限公司 | Wastewater treatment catalytic ozonation reactor for fluidized bed and wastewater treatment method of wastewater treatment catalytic ozonation reactor |
| CN104860454A (en) * | 2015-05-14 | 2015-08-26 | 华南理工大学 | Combined oxidation sewage treatment unit and method based on multistage fluidized bed |
| CN106745482A (en) * | 2016-12-27 | 2017-05-31 | 南昌大学 | A kind of photochemical oxidation reactor for percolate advanced treating |
| CN107101965A (en) * | 2017-05-02 | 2017-08-29 | 浙江理工大学 | The evaluating apparatus and evaluation method of a kind of ultraviolet optical drive catalysis material water treatmenting performance |
| CN108557986A (en) * | 2018-06-26 | 2018-09-21 | 苏州他山石环保科技有限公司 | A kind of efficient purifying sewage quickly treating column |
| CN110272113A (en) * | 2019-07-18 | 2019-09-24 | 上海明诺环境科技有限公司 | A kind of internal-circulation ozone catalysis oxidation sewage-treatment plant |
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| CN104556347A (en) * | 2014-12-15 | 2015-04-29 | 浙江中凯瑞普环境工程股份有限公司 | Wastewater treatment catalytic ozonation reactor for fluidized bed and wastewater treatment method of wastewater treatment catalytic ozonation reactor |
| CN104860454A (en) * | 2015-05-14 | 2015-08-26 | 华南理工大学 | Combined oxidation sewage treatment unit and method based on multistage fluidized bed |
| CN106745482A (en) * | 2016-12-27 | 2017-05-31 | 南昌大学 | A kind of photochemical oxidation reactor for percolate advanced treating |
| CN107101965A (en) * | 2017-05-02 | 2017-08-29 | 浙江理工大学 | The evaluating apparatus and evaluation method of a kind of ultraviolet optical drive catalysis material water treatmenting performance |
| CN108557986A (en) * | 2018-06-26 | 2018-09-21 | 苏州他山石环保科技有限公司 | A kind of efficient purifying sewage quickly treating column |
| CN110272113A (en) * | 2019-07-18 | 2019-09-24 | 上海明诺环境科技有限公司 | A kind of internal-circulation ozone catalysis oxidation sewage-treatment plant |
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