CN105036456A - Device for degrading organic matters in micro-polluted raw water by two-stage biomembrane-photocatalytic coupled technique - Google Patents
Device for degrading organic matters in micro-polluted raw water by two-stage biomembrane-photocatalytic coupled technique Download PDFInfo
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- CN105036456A CN105036456A CN201510325551.XA CN201510325551A CN105036456A CN 105036456 A CN105036456 A CN 105036456A CN 201510325551 A CN201510325551 A CN 201510325551A CN 105036456 A CN105036456 A CN 105036456A
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Abstract
The invention discloses a device for degrading organic matters in micro-polluted raw water by a two-stage biomembrane-photocatalytic coupled technique. The device main body (14) is formed by connecting and communicating a water inlet pipe (1) and a water outlet pipe (13), and divided into two layers by a transverse perforated partition (8), wherein the upper layer is a photocatalytic reaction region (9), and the lower layer is a biomembrane biochemical reaction region (5), so that the biomembrane biochemical reaction and photocatalytic reaction are integrated in one reactor; and the photocatalytic reaction region (9) and biomembrane biochemical reaction region (5) are respectively provided with a TiO2/PP (polypropylene) filler and a polyethylene filler. The upper end of the device main body is provided with an ultraviolet lamp, so that more TiO2/PP filler surface in the photocatalytic degradation bed is irradiated by light under the irradiation of ultraviolet light, thereby enhancing the photocatalytic degradation efficiency of organic matters in micro-polluted raw water, and sufficiently generating the coupling action. The device shortens the treatment process, saves the cost and the like.
Description
Technical field
The invention discloses organism device in a kind of two-stage biological film-photocatalysis coupled process degradation micro-polluted raw, belong to environmental protection technical field.
Background technology
Micro polluted source refers generally to the sewage of the aspect generations such as handicraft, agricultural and life without rational process, directly be discharged into and supply water-supply source to cause, for the objectionable impurities such as organism, ammonia nitrogen, agricultural chemicals of polluted source mainly containing trace, conventional water treatment method is difficult to them to dispose efficiently.
Along with China's expanding economy, industrialized process fast, many rivers are made to be subject to the pollution of different levels, with serious pollution river loses original self-repairing capability, when the shortage that China's water resources is serious, micro-polluted raw is still as drinking water source, and the objectionable impurities in water exists the human health damage of potentiality.
TiO
2photocatalysis technology is as a kind of " environmentally-friendly technique ", there is the advantages such as simple to operate, non-secondary pollution, it is one of research direction of receiving much concern of 21 century catalysis subject, organism in micro-polluted water can be turned to water and carbonic acid gas, achieve the spatter property in whole degradation process, there is good economy, environmental benefit; The sludge quantity that organism in microbial film process micro-polluted water produces is few, can not cause sludge bulking; To the variation of sewage quality and the water yield, there is good adaptive faculty; Two kinds of methods combining are treated to the process of polluted source by process system operational management more conveniently characteristic together, can improve out the organic efficiency in anhydrating; The method of existing photochemical catalysis-life assemblage can remove the organism in micro-polluted water, but has that technical process is long, catalytic effect is low and high in cost of production problem.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the drawback that in existing photochemical catalysis-life assemblage process micro-polluted raw, organism technical process is long, catalytic effect is poor and cost is high, provide organism device in two-stage biological film-photocatalysis coupled process degradation micro-polluted raw, light-catalyzed reaction and biological membranization are reacted and are integrated in one and the device that technical process is short, efficiency is high, cost is low.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: organism device in two-stage biological film-photocatalysis coupled process degradation micro-polluted raw, comprise apparatus main body (14), the water inlet water pipe (1) of communication apparatus main body and rising pipe (13), described this apparatus main body (14) is divided into twenty percent by cross-perforating dividing plate (8), upper strata is light-catalyzed reaction district (9), and lower floor is biological membrane bio-reaction district (5); Described light-catalyzed reaction district (9) and biomembrane biochemistry reaction zone (5) fill photochemical catalysis compounded mix (10) and biological filler material (5) respectively, biomembrane biochemistry reaction zone (5) bottom is provided with water inlet pipe (1), water inlet pipe (1) is provided with heat water valve (2) and settling tank (3), is provided with centrifugal blower (7) in its lower left corner; Described centrifugal blower (7) top is provided with water shoot (13).
Further, in described settling tank (3), be provided with activated carbon granule, suspended substance and be insoluble to the impurity of water-based in planar water.
Further, described water inlet pipe mouth (1) is connected with apparatus main body (14), settle strainer (4) therebetween, remove water body recovery technology, particulate matter, reduce turbidity, the generations such as minimizing system dirt, bacterium algae, corrosion, prevent water-in from blocking and guarantee that device normally keeps on the go.
Further, described biological filler material (5) is polyolefine, and described photochemical catalysis compounded mix (10) is TiO2PP spirrillum composite filling material.
Further, on described apparatus main body, top is mounted with rotatable ultraviolet fluorescent tube (11), has the effect of sterilization, achieves the illumination supply in light-catalyzed reaction district (9).
Further, described biomembrane biochemistry reaction zone (5) lower left corner is provided with centrifugal blower (7), achieves new air and enters supplementary by the center of casing.
Further, described TiO
2the main preparation methods of/PP composite filling material is:
(1) be added drop-wise in the distilled water of 200 ~ 400mL with the isopropyl titanate solution of suction pipe absorption 10 ~ 20mL, and regulate pH to be 1.5 ~ 3 with the hydrochloric acid soln of 0.5g/L ~ 1.2g/L, stirrer is at room temperature used to stir 2 ~ 4h, until oyster white homogeneous solution;
(2) in oyster white homogeneous solution, drip the triethyl acid solution of 5 ~ 10mL, regulate pH to be 8 ~ 10, put into polytetrafluoroethyllining lining stainless steel reactor, 15 ~ 20h is heated in 120 DEG C, after precipitating repeatedly filtering and washing, calcine 1 ~ 3h in retort furnace, barreling, obtains TiO
2material;
(3) by acrylic plastering particle and TiO2 material in mass ratio 3:100 mix, add 18 ~ 35mL methanol solution, under ultrasonic wave, process 20 ~ 45min, use stirrer to stir 4 ~ 6h, evaporate to dryness at 80 DEG C under room temperature, grinding, obtains TiO
2/ PP compounded mix.
The principle of the invention is: the dissolved oxygen trapped electron being adsorbed on nano grain surface forms superoxide anion, and the hydroxide ion being adsorbed on catalyst surface is become hydroxyl free radical with Water oxidize by hole.Superoxide anion and hydroxyl free radical have very strong oxidisability, can by the oxidation operation of the overwhelming majority to final product CO
2and H
2o, also can thoroughly decompose some inorganicss.
The invention has the beneficial effects as follows: in conjunction with the advantage of microbial film and photocatalysis treatment micro-polluted raw, take the method for microbial film and photocatalysis technology coupling, degrade organism in micro-polluted raw efficiently, shorten technical process, reduce the characteristic of cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of organism device in two-stage biological film of the present invention-photocatalysis coupled process degradation micro-polluted raw.
In figure: 1, water injection pipe; 2, heat water valve; 3, settling tank; 4, strainer; 5, biomembrane reaction district; 6, microbial film weighting material; 7, centrifugal blower; 8, foraminous plate is divided into; 9, light-catalyzed reaction district; 10, optic catalytic composite material; 11, ultraviolet etc.; 12, shutoff valve; 13, water shoot; 14, apparatus main body.
Embodiment
Organism device in two-stage biological film-photocatalysis coupled process degradation micro-polluted raw, there is apparatus main body (14), the water inlet water pipe (1) of communication apparatus main body and rising pipe (13), described this apparatus main body (14) is divided into twenty percent by cross-perforating dividing plate (8), upper strata is light-catalyzed reaction district (9), and lower floor is biological membrane bio-reaction district (5).
Described light-catalyzed reaction district (9) and biomembrane biochemistry reaction zone (5) fill photochemical catalysis compounded mix (10) and biological filler material (5) respectively, biomembrane biochemistry reaction zone (5) bottom is provided with water inlet pipe (1), water inlet pipe (1) is provided with heat water valve (2) and settling tank (3), is provided with centrifugal blower (7) in its lower left corner.
Described centrifugal blower (7) top is provided with water shoot (13).
Activated carbon granule is provided with in described settling tank (3), suspended substance and be insoluble to the impurity of water-based in planar water, described water inlet pipe mouth (1) is connected with apparatus main body (14), settle strainer (4) therebetween, remove water body recovery technology, particulate matter, reduce turbidity, reduce the generations such as system dirt, bacterium algae, corrosion, prevent water-in from blocking and guarantee that device normally keeps on the go; Described biological filler material (5) is polyolefine.
Described photochemical catalysis compounded mix (10) is TiO
2/ PP spirrillum composite filling material, on described apparatus main body, top is mounted with rotatable ultraviolet fluorescent tube (11), has the effect of sterilization, achieves the illumination supply in light-catalyzed reaction district (9); Described biomembrane biochemistry reaction zone (5) lower left corner is provided with centrifugal blower (7), achieves new air and enters supplementary by the center of casing.
Described TiO
2the main preparation methods of/PP composite filling material is:
First be added drop-wise in the distilled water of 200 ~ 400mL with the isopropyl titanate solution of suction pipe absorption 10 ~ 20mL, and regulate pH to be 1.5 ~ 3 with the hydrochloric acid soln of 0.5g/L ~ 1.2g/L, at room temperature use stirrer to stir 2 ~ 4h, until oyster white homogeneous solution; In oyster white homogeneous solution, drip the triethyl acid solution of 5 ~ 10mL again, regulate pH to be 8 ~ 10, put into polytetrafluoroethyllining lining stainless steel reactor, 15 ~ 20h is heated in 120 DEG C, after precipitating repeatedly filtering and washing, calcine 1 ~ 3h in retort furnace, barreling, obtains TiO2 material; By acrylic plastering particle and TiO
2material 3:100 mixing in mass ratio, adds 18 ~ 35mL methanol solution, under ultrasonic wave, processes 20 ~ 45min, uses stirrer to stir 4 ~ 6h, evaporate to dryness at 80 DEG C, grinding, final TiO under room temperature
2/ PP compounded mix.
Application method
First, pending organism micro-polluted raw enters in settling tank (3) by rotation water intaking valve (2) to carry out precipitating (3), settling tank (3) bottom has gac to fill, suspended substance and be insoluble to the impurity of water-based in planar water in planar water, water body recovery technology is removed again by filter for molten (4), particulate matter, reduce turbidity, minimizing system dirt, bacterium algae, the generations such as corrosion, prevent water-in from blocking and guarantee that device normally keeps on the go, then organism micro-polluted raw enters biomembrane reaction district (5) formation aerobic bioreactor film reaction under the effect of centrifugal blower (7), by interlayer foraminous plate with fill up TiO
2the light-catalyzed reaction district of/PP composite filling material (10) carries out coupling reaction, finally reaches organic object in degraded micro-polluted raw.
Claims (7)
1. organism device in two-stage biological film-photocatalysis coupled process degradation micro-polluted raw, comprise apparatus main body (14), the water inlet water pipe (1) of communication apparatus main body and rising pipe (13), it is characterized in that: described this apparatus main body (14) is divided into twenty percent by cross-perforating dividing plate (8), upper strata is light-catalyzed reaction district (9), and lower floor is biological membrane bio-reaction district (5); Described light-catalyzed reaction district (9) and biomembrane biochemistry reaction zone (5) fill photochemical catalysis compounded mix (10) and biological filler material (5) respectively, biomembrane biochemistry reaction zone (5) bottom is provided with water inlet pipe (1), water inlet pipe (1) is provided with heat water valve (2) and settling tank (3), is provided with centrifugal blower (7) in its lower left corner; Described centrifugal blower (7) top is provided with water shoot (13).
2. according to organism device in claim 1 two-stage biological film-photocatalysis coupled process degradation micro-polluted raw, it is characterized in that: in described settling tank (3), be provided with activated carbon granule, suspended substance and be insoluble to the impurity of water-based in planar water.
3. according to organism device in claim 1 two-stage biological film-photocatalysis coupled process degradation micro-polluted raw, it is characterized in that: described water inlet pipe mouth (1) is connected with apparatus main body (14), settle strainer (4) therebetween, remove water body recovery technology, particulate matter, reduce turbidity, minimizing system dirt, bacterium algae, corrosion material, prevent water-in from blocking and guarantee that device normally keeps on the go.
4. according to organism device in claim 1 two-stage biological film-photocatalysis coupled process degradation micro-polluted raw, it is characterized in that: described biological filler material (5) is polyolefine; Described photochemical catalysis compounded mix (10) is TiO
2/ PP spirrillum composite filling material.
5. according to organism device in claim 1 two-stage biological film-photocatalysis coupled process degradation micro-polluted raw, it is characterized in that: on described apparatus main body, top is mounted with rotatable ultraviolet fluorescent tube (11), there is the effect of sterilization, achieve the illumination supply in light-catalyzed reaction district (9).
6. according to organism device in claim 1 two-stage biological film-photocatalysis coupled process degradation micro-polluted raw, it is characterized in that: described biomembrane biochemistry reaction zone (5) lower left corner is provided with centrifugal blower (7), achieves new air and enters supplementary by the center of casing.
7. TiO according to claim 4
2the main preparation methods of/PP composite filling material is:
(1) be added drop-wise in the distilled water of 200 ~ 400mL with the isopropyl titanate solution of suction pipe absorption 10 ~ 20mL, and regulate pH to be 1.5 ~ 3 with the hydrochloric acid soln of 0.5g/L ~ 1.2g/L, stirrer is at room temperature used to stir 2 ~ 4h, until oyster white homogeneous solution;
(2) in oyster white homogeneous solution, drip the triethyl acid solution of 5 ~ 10mL, regulate pH to be 8 ~ 10, put into polytetrafluoroethyllining lining stainless steel reactor, 15 ~ 20h is heated in 120 DEG C, after precipitating repeatedly filtering and washing, calcine 1 ~ 3h in retort furnace, barreling, obtains TiO
2material;
(3) by acrylic plastering particle and TiO
2material 3:100 mixing in mass ratio, adds 18 ~ 35mL methanol solution, under ultrasonic wave, processes 204 ~ 5min, and use stirrer to stir 4 ~ 6h, evaporate to dryness at 80 DEG C under room temperature, grinding, obtains TiO
2/ PP compounded mix.
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|---|---|---|---|
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|---|---|---|---|
| CN201510325551.XA CN105036456A (en) | 2015-06-13 | 2015-06-13 | Device for degrading organic matters in micro-polluted raw water by two-stage biomembrane-photocatalytic coupled technique |
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| CN108821426A (en) * | 2018-06-08 | 2018-11-16 | 常州大学 | A kind of preparation method of biofilm carrier for wastewater treatment |
| CN109133329A (en) * | 2018-08-31 | 2019-01-04 | 江苏新亿源环保科技有限公司 | A kind of preparation method of silver ion modified photocatalytic biofilter material |
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| CN109133329A (en) * | 2018-08-31 | 2019-01-04 | 江苏新亿源环保科技有限公司 | A kind of preparation method of silver ion modified photocatalytic biofilter material |
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Application publication date: 20151111 |