CN202226749U - Biological membrane-photocatalysis integrated reaction device for pretreatment of micro-polluted raw water - Google Patents
Biological membrane-photocatalysis integrated reaction device for pretreatment of micro-polluted raw water Download PDFInfo
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- CN202226749U CN202226749U CN2011203206987U CN201120320698U CN202226749U CN 202226749 U CN202226749 U CN 202226749U CN 2011203206987 U CN2011203206987 U CN 2011203206987U CN 201120320698 U CN201120320698 U CN 201120320698U CN 202226749 U CN202226749 U CN 202226749U
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Abstract
The utility model relates to a biological membrane-photocatalysis integrated reaction device for pretreatment of micro-polluted raw water. The biological membrane-photocatalysis integrated reaction device comprises a device main body, as well as a water inlet pipeline and a water outlet pipeline, which are communicated with the device main body, wherein the device main body is divided into a lower biological membrane biochemical reaction zone and an upper photocatalysis reaction zone through a transverse perforated partition plate, a biological filling material is filled in the biological membrane biochemical reaction zone, a photocatalysis suspending filling material is filled in the photocatalysis reaction zone, the water inlet pipeline is arranged at the bottom of the biological membrane biochemical reaction zone, the water inlet pipeline is communicated with the raw water through a water pump, and the water outlet pipeline is arranged at the top of the photocatalysis reaction zone. The biological membrane-photocatalysis integrated reaction device disclosed by the utility model integrates biological membrane biochemical reaction and photocatalysis reaction in the same reaction device, the middle perforated partition plate is used for transverse partition, and a middle vertical water-passing corridor is used for realizing switching of water flow directions; after two-stage treatment, namely biochemical-photocatalysis and re-biochemical-photocatalysis, the total degradation efficiency on organic matters of the reaction device can be improved; and simultaneously, treatment process flow is shortened and the floor area is saved.
Description
Technical field
The utility model relates to the pretreatment unit of micro-polluted raw, belongs to environmental protection technical field, the especially a kind of pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device that is used for.
Background technology
Micro-polluted raw is meant that drinking water source mainly receives Organic pollutants, and some projects surpass " ground water environment quality standard " (GB3838-2002) required standard of middle III class water body.Pollutant kind contained in this type water is more, character is complicated, but concentration ratio is lower.
Experimental study both domestic and external and actual production result show that conventional water-purifying process is relatively poor to the removal effect of organism in the micro-polluted raw especially dissolved organic matter, concerning many water factories, satisfy output water COD
MnRequire difficulty bigger less than 3mg/L.In addition; Ammonia nitrogen concentration in the many micro-polluted source waters of China usually can reach more than the 3mg/L; Considerably beyond " Drinking Water hygienic practice " (GB5749-2006) in the tap water of regulation ammonia nitrogen content be no more than the requirement of 0.5mg/L, this also is the difficult problem that conventional treatment process can not effectively solve.To these problems of micro-polluted source water, the treatment technology that more often adopts of each water factory comprises and sets up pre-treatment, strengthens common process and continuity advanced treatment three parts at present.
Pre-treatment typically refers to before conventional water-purifying process, adopts suitable physics, chemistry and biochemical processing method, and the pollutent in the water is carried out elementary removal, alleviates processed conventionally burden, improves drinking-water quality.
Biochemical treatment is a kind of lower cost; Move sophisticated water technology; Especially aspect the removal of ammonia nitrogen, comparatively ideal effect is being arranged; The photochemical catalytic oxidation rule has good effect to the removal of hardly degraded organic substance in the water, and has characteristics such as energy consumption is low, simple to operate, reaction conditions gentleness.With two kinds of technology application in conjunction in the pre-treatment of micro-polluted raw; Bring into play both synergies; Strong oxidation activity species such as the hydroxyl radical free radical that produces through photocatalytic process, superoxide radical, the ammonia nitrogen that not only can effectively the solve micro-polluted raw problem that exceeds standard, and can realize that normal temperature and pressure catalytic oxidation efficiently removes natural organic matter in the water (NOM) and artificial synthetic organic materials (SOC); Make organism obtain inorganic mineralising; Or improve organic biodegradability, and reduce the load of subsequent disposal and the generation of DBPs, guarantee safety of drinking water.
Existing investigator make photoactivation-biological series combination treatment process make a return journey and dewater in dissimilar pollutents, like: H-acid, soluble cotton, sterilant, EDTA and phenol etc.Photochemical catalytic oxidation can be used as the first step of degradation process, and macromolecular substance is decomposed into small-molecule substance, destroys organic molecular structure, improves the biodegradability of pollution substance.Also there are some investigators to use bio-oxidation-photochemical catalysis integrated technology to come degradation of phenol, pollution substances such as nitrophenols.Bio-oxidation is light-catalyzed reaction as the first step of DeR then.After pollution substance process oxidation degradation, in photo catalysis reactor, carry out further oxidative degradation, until mineralising.But shortcomings such as above-mentioned photochemical catalysis-bio-oxidation series combination technology exists technical process long, and floor space is bigger, and catalytic efficiency (is lower.
The utility model content
The technical problem that the utility model will solve is: in order to solve the deficiency of prior art; The utility model provides a kind of pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device that is used for; Simple in structure, floor space is little, and technical process is short; Effective to contaminant degradation, the micro-polluted raw treatment unit of easy handling.
The utility model solves the technical scheme that its technical problem adopted: a kind of pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device that is used for; Has apparatus main body; The suction culvert of communication apparatus main body and outlet pipeline, described apparatus main body is separated into the biomembrane biochemistry reaction zone of below and the light-catalyzed reaction district of top by horizontal perforation dividing plate, filled biomass filler in the biomembrane biochemistry reaction zone; Fill the photochemical catalysis floating stuffing in the light-catalyzed reaction district; The bottom of biomembrane biochemistry reaction zone is provided with suction culvert, and suction culvert is communicated with former water through water pump, and the top in light-catalyzed reaction district sets out water lines.
For improving decontamination effect improving; Have placed in-line first order reaction district and second order reaction district in the described apparatus main body; Described first order reaction district and second order reaction district are separated into the biomembrane biochemistry reaction zone of below and the light-catalyzed reaction district of top by horizontal perforation dividing plate, and the bottom in first order reaction district is provided with suction culvert, and the top water outlet in first order reaction district is communicated with the bottom water-in in second order reaction district; Suction culvert is communicated with former water through water pump, and the top in second order reaction district sets out water lines.Have two-step purification, biochemistry-photochemical catalysis, biochemistry-photochemical catalysis more effectively improve the total degradation efficient of device to the middle pollutent of former water, reduce the load of subsequent disposal and the generation of DBPs, guarantee safety of drinking water.
Be the switching that better realizes current, have between described first order reaction district and the second order reaction district and carry out the vertical water gallery excessively that flow direction switches.Former water gets into successively through biomembrane biochemistry reaction zone and light-catalyzed reaction district from the suction culvert of the bottom in first order reaction district; Got into the second order reaction district more successively through biomembrane biochemistry reaction zone and light-catalyzed reaction district after passing through the water gallery; Finally discharge, cross the switching that the water gallery has been realized first order reaction district and second order reaction district current from the outlet pipeline at the top in second order reaction district.
As preferably, described biologic packing material is a Vestolen PP 7052, and described photochemical catalysis floating stuffing is oblique rotating porous compounded mix, mainly by Vestolen PP 7052 and nano level TiO
2Form.Can through the adjustment filler the filling ratio to adapt to the variation of raw water quality.The density of biologic packing material and photochemical catalysis floating stuffing is 900-1000kg/m
3, under a certain amount of aeration effect, in water, be fluidized state.
For competent oxygen is provided; Has the aeration tube of in biomembrane biochemistry reaction zone and light-catalyzed reaction district, ventilating in the described apparatus main body; Described aeration tube connects outside gas blower through airduct, and described aeration tube is boring aeration pipe or microporous diaphragm aeration tube.Aeration tube makes filler be fluidized state when improving sufficient oxygen, has improved gas, liquid, solid three-phase mass-transfer efficiency, and the biochemical reaction efficient of biologic packing material and the photocatalysis efficiency of photochemical catalysis floating stuffing all are improved.
For improving the efficient in light-catalyzed reaction district, it is the ultraviolet ultraviolet lamp tube of 254nm that described apparatus main body top is provided with to light-catalyzed reaction district radiation wavelength.Under ultraviolet lamp tube or solar light irradiation, the TiO of load on the photochemical catalysis floating stuffing
2Excited, produce hole and unbound electron on its filled band and the conduction band respectively, there is the very strong electronic capability that gets in the hole that is produced by light, and can capture TiO
2The organism of particle surface or the electronics in the water finally generate the extremely strong OH radical of oxidation capacity, make the oxidized decomposition of organism of difficult degradation in the former water.
For ease of the clean and maintenance of device, described apparatus main body bottom has blow-down pipe that is used for the former water of emptying and the switch-valve that is installed in control keying on the blow-down pipe.
The beneficial effect of the utility model is; The pretreated microbial film of the micro-polluted raw-photochemical catalysis integrated reaction device that is used for of the utility model is integrated in same reaction unit with biomembrane biochemistry reaction and light-catalyzed reaction; Laterally separate through centre perforation dividing plate, through the vertical switching of crossing water gallery realization flow direction in centre; Through biochemistry-photochemical catalysis, after biochemistry-photochemical catalysis two stages of treatment, can improve reaction unit again to organic total degradation efficient; Shorten processing technological flow simultaneously, saved floor space.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation that the utility model is used for first embodiment of the pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device;
Fig. 2 is the structural representation that the utility model is used for second embodiment of the pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device.
Among the figure: 1. apparatus main body, 11. first order reaction districts, 12. second order reaction districts, 13. suction culverts,
14. outlet pipeline, 2. perforation dividing plate, 3. biomembrane biochemistry reaction zone, 31. biologic packing materials,
4. light-catalyzed reaction district, 41. photochemical catalysis floating stuffings are 5. crossed the water gallery, 6. aeration tube,
7. ultraviolet lamp tube.
Embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the synoptic diagram of simplification, the substruction of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Fig. 1 is first embodiment that is used for the pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device of the utility model; Has apparatus main body 1; The suction culvert 13 and the outlet pipeline 14 of communication apparatus main body 1, apparatus main body 1 is separated into the biomembrane biochemistry reaction zone 3 of below and the light-catalyzed reaction district 4 of top, filled biomass filler 31 in the biomembrane biochemistry reaction zone 3 by horizontal perforation dividing plate 2; Fill photochemical catalysis floating stuffing 41 in the light-catalyzed reaction district 4; The bottom of biomembrane biochemistry reaction zone 3 is provided with suction culvert 13, and suction culvert 13 is communicated with former water through water pump, and the top in light-catalyzed reaction district 4 sets out water lines 14.
The aeration tube 6 that has ventilation in biomembrane biochemistry reaction zone 3 and light-catalyzed reaction district 4 in the apparatus main body 1, aeration tube 6 connects outside gas blower through airduct, and aeration tube 6 is boring aeration pipe or microporous diaphragm aeration tube.
It is the ultraviolet ultraviolet lamp tube 7 of 254nm that apparatus main body 1 top is provided with to light-catalyzed reaction district 4 radiation wavelengths, and ultraviolet lamp tube 7 power are adjustable in 36～90W scope.
Apparatus main body 1 bottom has blow-down pipe that is used for the former water of emptying and the switch-valve that is installed in control keying on the blow-down pipe.
First embodiment is the first class purification treatment unit.
Fig. 2 is second embodiment that is used for the pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device of the utility model; Has apparatus main body 1; The suction culvert 13 and the outlet pipeline 14 of communication apparatus main body 1; Have first order reaction district 11 and second order reaction district 12 in the apparatus main body 1, first order reaction district 11 and second order reaction district 12 are separated into the biomembrane biochemistry reaction zone 3 of below and the light-catalyzed reaction district 4 of top by horizontal perforation dividing plate 2.Have between first order reaction district 11 and the second order reaction district 12 and carry out the vertical water gallery 5 excessively that flow direction switches; The bottom in first order reaction district 11 is provided with suction culvert 13; Suction culvert 13 is communicated with former water through water pump; The top in second order reaction district 12 sets out water lines 14, and first order reaction district 11 top water outlets passed through water gallery 5 and are communicated with the bottom water-in in second order reaction district 12.Arrow points shows water (flow) direction among the figure.
The boring aeration pipe 6 that has ventilation in biomembrane biochemistry reaction zone 3 and light-catalyzed reaction district 4 in the apparatus main body 1, boring aeration pipe 6 connects outside gas blower through airduct.
It is the ultraviolet ultraviolet lamp tube 7 of 254nm that apparatus main body 1 top is provided with to light-catalyzed reaction district 4 radiation wavelengths, and the power of ultraviolet lamp tube 7 is adjustable in 36～90W scope.
Apparatus main body 1 bottom has blow-down pipe that is used for the former water of emptying and the switch-valve that is installed in control keying on the blow-down pipe.
Second embodiment is the two-step purification treatment unit, is optimum embodiment.Adopt two-stage biological film-photochemical catalysis integrated reaction device pretreating micro-polluted raw water, when raw water flow is 0.09m
3/ h, water inlet COD
MnMean concns is 8.50mg/L, NH
3-N mean concns is 3.83mg/L, and hydraulic detention time is 1h, and uv lamp power is 54W, and the packing ratio of photochemical catalysis floating stuffing and biologic packing material is 40% o'clock, to COD
Mn, NH
3The average removal rate of-N is respectively 27.5% and 74.3%.
Claims (7)
1. one kind is used for the pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device; Has apparatus main body (1); The suction culvert (13) of communication apparatus main body (1) and outlet pipeline (14); It is characterized in that: described apparatus main body (1) is separated into the biomembrane biochemistry reaction zone (3) of below and the light-catalyzed reaction district (4) of top by horizontal perforation dividing plate (2); Fill photochemical catalysis floating stuffing (41) in the interior filled biomass filler of biomembrane biochemistry reaction zone (3) (31), light-catalyzed reaction district (4), the bottom of biomembrane biochemistry reaction zone (3) is provided with suction culvert (13); Suction culvert (13) is communicated with former water through water pump, and the top of light-catalyzed reaction district (4) sets out water lines (14).
2. the pretreated microbial film of the micro-polluted raw-photochemical catalysis integrated reaction device that is used for as claimed in claim 1; It is characterized in that: have placed in-line first order reaction district (11) and second order reaction district (12) in the described apparatus main body (1); Described first order reaction district (11) and second order reaction district (12) are separated into the biomembrane biochemistry reaction zone (3) of below and the light-catalyzed reaction district (4) of top by horizontal perforation dividing plate (2); The bottom in first order reaction district (11) is provided with suction culvert (13); The top water outlet in first order reaction district (11) is communicated with the bottom water-in of second order reaction district (12); Suction culvert (13) is communicated with former water through water pump, and the top of second order reaction district (12) sets out water lines (14).
3. the pretreated microbial film of the micro-polluted raw-photochemical catalysis integrated reaction device that is used for as claimed in claim 2 is characterized in that: have between described first order reaction district (11) and second order reaction district (12) and carry out the vertical water gallery (5) excessively that flow direction switches.
4. like claim 1 or the 2 or 3 described pretreated microbial film of the micro-polluted raw-photochemical catalysis integrated reaction devices that are used for, it is characterized in that: described biologic packing material (31) is a Vestolen PP 7052, and described photochemical catalysis floating stuffing (41) is oblique rotating porous compounded mix.
According to claim 1 or claim 2 be used for the pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device; It is characterized in that: the aeration tube (6) that has ventilation in biomembrane biochemistry reaction zone (3) and light-catalyzed reaction district (4) in the described apparatus main body (1); Described aeration tube (6) connects outside gas blower through airduct, and described aeration tube (6) is boring aeration pipe or microporous diaphragm aeration tube.
According to claim 1 or claim 2 be used for the pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device, it is characterized in that: it is the ultraviolet ultraviolet lamp tube of 254nm (7) that described apparatus main body (1) top is provided with to light-catalyzed reaction district (4) radiation wavelength.
According to claim 1 or claim 2 be used for the pretreated microbial film of micro-polluted raw-photochemical catalysis integrated reaction device, it is characterized in that: described apparatus main body (1) bottom has the blow-down pipe that is used for the former water of emptying and is installed in the switch-valve that control opens and closes on the blow-down pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203206987U CN202226749U (en) | 2011-08-29 | 2011-08-29 | Biological membrane-photocatalysis integrated reaction device for pretreatment of micro-polluted raw water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203206987U CN202226749U (en) | 2011-08-29 | 2011-08-29 | Biological membrane-photocatalysis integrated reaction device for pretreatment of micro-polluted raw water |
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| CN202226749U true CN202226749U (en) | 2012-05-23 |
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| CN2011203206987U Withdrawn - After Issue CN202226749U (en) | 2011-08-29 | 2011-08-29 | Biological membrane-photocatalysis integrated reaction device for pretreatment of micro-polluted raw water |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336503A (en) * | 2011-08-29 | 2012-02-01 | 常州大学 | Biological membrane-photocatalytic integration reaction device for micro pollution raw water pretreatment |
| CN102701544A (en) * | 2012-06-29 | 2012-10-03 | 河海大学 | External-mounting photocatalytic - biological fluidized bed reactor |
| CN106268286A (en) * | 2016-08-18 | 2017-01-04 | 辽宁工业大学 | A kind of biofiltration processing system of city refuse landfill gas |
| CN110194566A (en) * | 2019-06-18 | 2019-09-03 | 河南工业大学 | A kind of device and method handling micropollutant water |
| CN112062265A (en) * | 2020-09-08 | 2020-12-11 | 广西大学 | Method for synchronously degrading and adsorbing 2,4, 6-trichlorophenol in organic halide through photocatalysis and microorganisms |
-
2011
- 2011-08-29 CN CN2011203206987U patent/CN202226749U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336503A (en) * | 2011-08-29 | 2012-02-01 | 常州大学 | Biological membrane-photocatalytic integration reaction device for micro pollution raw water pretreatment |
| CN102701544A (en) * | 2012-06-29 | 2012-10-03 | 河海大学 | External-mounting photocatalytic - biological fluidized bed reactor |
| CN102701544B (en) * | 2012-06-29 | 2013-10-30 | 河海大学 | External-mounting photocatalytic - biological fluidized bed reactor |
| CN106268286A (en) * | 2016-08-18 | 2017-01-04 | 辽宁工业大学 | A kind of biofiltration processing system of city refuse landfill gas |
| CN106268286B (en) * | 2016-08-18 | 2022-12-09 | 辽宁工业大学 | Gaseous biofiltration processing system of municipal refuse landfill |
| CN110194566A (en) * | 2019-06-18 | 2019-09-03 | 河南工业大学 | A kind of device and method handling micropollutant water |
| CN112062265A (en) * | 2020-09-08 | 2020-12-11 | 广西大学 | Method for synchronously degrading and adsorbing 2,4, 6-trichlorophenol in organic halide through photocatalysis and microorganisms |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120523 Effective date of abandoning: 20130703 |
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| RGAV | Abandon patent right to avoid regrant |