CN204529610U - A kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant - Google Patents
A kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant Download PDFInfo
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- CN204529610U CN204529610U CN201520180230.0U CN201520180230U CN204529610U CN 204529610 U CN204529610 U CN 204529610U CN 201520180230 U CN201520180230 U CN 201520180230U CN 204529610 U CN204529610 U CN 204529610U
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- waste water
- settling tank
- photocatalytic oxidation
- halohydrocarbon
- biochemical
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Abstract
The utility model discloses a kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant, comprise photocatalytic oxidation reactor and biochemical system, photocatalytic oxidation reactor opening for feed is connected with collecting tank by lift pump, discharge port is connected to settling tank one, settling tank one supernatant liquor discharge port is connected to equalizing tank, equalizing tank is connected to biochemical system by lift pump, described biochemical system is connected with settling tank two, settling tank two supernatant liquor discharge port is connected with blowoff basin by lift pump, settling tank one is all connected with sludge thickener with settling tank two bottom settlings layer discharge port.The utility model overcomes the deficiencies in the prior art, according to the feature of halohydrocarbon waste water, adopts the biochemical treatment process combined with chemical oxidation, eliminates wastewater biological inhibition, eliminate the approach of COD, ensure that stable water outlet, reliably, up to standard.
Description
Technical field
The utility model relates to sewage treatment equipment technical field, specifically belongs to a kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant.
Background technology
Vaporizing extract process allows waste water directly contact with water vapor, the volatility hazardous and noxious substances in waste water is diffused in gas phase by a certain percentage and goes, thus reach the object of separating contaminants from waste water.The ultimate principle of vaporizing extract process is identical with blow-off method, and be used medium difference, stripping realizes by means of water steam medium.Vaporizing extract process effectively can realize being separated of high density halohydrocarbon and waste water, but working cost is high, after stripping in waste water still containing higher pollutent.
Absorption method utilizes the porous solid sorbent material as gac etc. that one or several components in water sample are adsorbed in surface, then by methods such as suitable solvent, heating or air blowings, prediction group is decomposed absorption, reaches the object of separation and enrichment.Absorption method is applicable to low concentration wastewater, and its shortcoming is adsorbent reactivation difficulty, becomes danger useless, difficult treatment after adsorbent.
Fenton method is a kind of advanced chemical oxidation, and fenton reagent is the combination of ferrous ion and hydrogen peroxide, and this reagent is usually used in waste water as strong oxidizer and removes COD, colourity, foam etc.Fenton reagent and organism RH react, and make it that carbochain fission occur, are finally oxidized to carbonic acid gas and water, thus the COD in waste water is reduced greatly.Meanwhile, Fe
2 +as powerful catalyst, be finally oxidized to Fe by O2
3 +, under certain pH value, generate the Fe (OH) having throwing out
3colloid, can reduce the suspended substance in water in a large number.
Biochemical process is the main stream approach of current treatment of Organic Wastewater, and biochemical process is cultivated for dropping into a certain amount of active sludge in water, by the biochemical action of bacterium in active sludge, to the process that water quality purifies.For the waste water that biochemical is good, within the scope of biological inhibition, by anaerobism and aerobic combination, the degraded of waste water effectively can be realized.
Current common process process halohydrocarbon waste water all exists not up to standard, and the problem that smell is large, is in particular in:
(1), halohydrocarbon is more stable, and poor by conventional chemical oxidative treatment effect, aqueous concentration is higher, cannot reach requirement;
(2), halohydrocarbon biochemical is poor, and poor by biochemical process treatment effect, meanwhile, halohydrocarbon, all containing biological inhibition in various degree and toxicity, has larger harm to biochemical system.
Utility model content
The purpose of this utility model there is provided a kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant, overcome the deficiencies in the prior art, project organization is reasonable, according to the feature of halohydrocarbon waste water, photocatalysis and oxidization combined biochemical process is adopted can effectively to process halohydrocarbon waste water, photocatalytic oxidation substantially can all chlorinated hydrocarbon organism of complete oxidation, can by this type of high-enriched organics permineralization when certain condition, and the biodegradability of waste water can be improved, due to the various organic components more complicated contained in waste water, and pollutant emission standard also more and more higher when, recycling biochemical system does intensive treatment, the biochemical treatment process combined with chemical oxidation, eliminates wastewater biological inhibition, eliminates the approach of COD, ensure that stable water outlet, reliably, up to standard.
The technical solution adopted in the utility model is as follows:
A kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant, comprise photocatalytic oxidation reactor and biochemical system, described photocatalytic oxidation reactor opening for feed is connected with collecting tank by lift pump, discharge port is connected to settling tank one, described settling tank one supernatant liquor discharge port is connected to equalizing tank, described equalizing tank is connected to biochemical system by lift pump, described biochemical system is connected with settling tank two, described settling tank two supernatant liquor discharge port is connected with blowoff basin by lift pump, described settling tank one is all connected with sludge thickener with settling tank two bottom settlings layer discharge port.
Described photocatalytic oxidation reactor comprises pond body, some oxygenant dispensers, ultraviolet lamp and pH value detector.
Described settling tank one outside is provided with some auxiliary material dispensers, and inside is positioned at supernatant liquor position and is provided with pH value detector.
Described biochemical system comprises anaerobic pond, anoxic pond and Aerobic Pond, all containing dephosphorization bacterial in described anaerobic pond and Aerobic Pond, containing facultative anaerobe with instead digest bacterium in described anoxic pond.
Described waste water is introduced into anaerobic pond, then enters anoxic pond, finally enters Aerobic Pond.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) degradation speed is fast, generally only needs dozens of minutes can obtain good treatment effect by several hours;
(2) degraded non-selectivity, any organism of almost degrading, is particularly suitable for chlorinatedorganic, polycyclic aromatic hydrocarbons etc.;
(3) oxidation reaction condition is gentle, less investment, and energy consumption is low;
(4) non-secondary pollution, organism is thoroughly degraded to the innoxious substances such as CO2 and H2O;
(5) system adopts the biochemical treatment process combined with chemical oxidation, considers to eliminate wastewater biological inhibition, eliminates the approach of COD, ensure that stable water outlet, reliably, up to standard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
See accompanying drawing, a kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant, comprise photocatalytic oxidation reactor 2 and biochemical system 5, described photocatalytic oxidation reactor 2 opening for feed is connected with collecting tank 1 by lift pump 9, discharge port is connected to settling tank 1, described settling tank 1 supernatant liquor discharge port is connected to equalizing tank 4, described equalizing tank 4 is connected to biochemical system 5 by lift pump 9, described biochemical system 5 is connected with settling tank 27, described settling tank 27 supernatant liquor discharge port is connected with blowoff basin 8 by lift pump 9, described settling tank 1 is all connected with sludge thickener 6 with settling tank 27 bottom settlings layer discharge port, described photocatalytic oxidation reactor 2 comprises pond body, some oxygenant dispensers 21, ultraviolet lamp 22 and pH value detector 10, described settling tank 1 outside is provided with some auxiliary material dispensers 31, and inside is positioned at supernatant liquor position and is provided with pH value detector 10, described biochemical system 5 comprises anaerobic pond 51, anoxic pond 52 and Aerobic Pond 53, all containing dephosphorization bacterial in described anaerobic pond 51 and Aerobic Pond 53, containing facultative anaerobe with instead digest bacterium in described anoxic pond 52, described waste water is introduced into anaerobic pond 51, then enters anoxic pond 52, finally enters Aerobic Pond 53.
Waste water in collecting tank is delivered to photocatalytic oxidation reactor, regulate PH about 3, hydrogen peroxide is added and ferrous sulfate carries out photochemical catalytic oxidation by oxygenant dispenser, under the irradiation of ultraviolet lamp and the catalysis of ferrous sulfate, the oxidisability of hydrogen peroxide significantly improves, the material of the bio-refractories such as the methyl chloride in waste water is oxidized, and COD value of waste water significantly reduces; After photochemical catalytic oxidation, waste water enters settling tank one, adds NaOH regulate waste water PH to about 8 by auxiliary material dispenser, and adds PAM and carry out coagulating sedimentation, and supernatant liquor is from flowing into equalizing tank; After equalizing tank, waste water enters biochemical system through lift pump, and biochemical system adopts A2/O technique.Waste water is first through anaerobic pond, endobacillary polymerization phosphorus can decompose and release by dephosphorization bacterial, polyP bacteria is made to be in the starvation of phosphorus, the energy of release for maintaining the existence of the aerobic dephosphorization bacterial of part under anaerobic environment and the low molecule organic matter in absorbing environmental, and is stored in cell with the form of Poly-β-hydroxybutyric acid (PHB).Waste water enters anoxic pond subsequently, under facultative anaerobe effect, biodegradable organism is converted into lower-molecular substance, and denitrifying bacterium utilizes the nitrate in returned sluge and partial reflux sewage and organism to carry out denitrification, reaches denitrification effect.Last waste water enters aerobic zone, the PHB that dephosphorization bacterial stores in decomposer while residual organic substances in absorption waste water gives off energy for growth and breeding needs, and the dissolved phosphorus in excessive consumption water is stored in new cell paste with the form of being polymerized phosphorus, reaches phosphor-removing effect.
After aerobic decomposition, waste water enters settling tank two with the form that muddy water mixes and carries out mud-water separation.Through the supernatant liquor that secondary sedimentation is flowed out, water quality is better, directly discharges.
Claims (5)
1. a photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant, comprise photocatalytic oxidation reactor and biochemical system, it is characterized in that: described photocatalytic oxidation reactor opening for feed is connected with collecting tank by lift pump, discharge port is connected to settling tank one, described settling tank one supernatant liquor discharge port is connected to equalizing tank, described equalizing tank is connected to biochemical system by lift pump, described biochemical system is connected with settling tank two, described settling tank two supernatant liquor discharge port is connected with blowoff basin by lift pump, described settling tank one is all connected with sludge thickener with settling tank two bottom settlings layer discharge port.
2. a kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant according to claim 1, is characterized in that: described photocatalytic oxidation reactor comprises pond body, some oxygenant dispensers, ultraviolet lamp and pH value detector.
3. a kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant according to claim 1, is characterized in that: described settling tank one outside is provided with some auxiliary material dispensers, and inside is positioned at supernatant liquor position and is provided with pH value detector.
4. a kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant according to claim 1, it is characterized in that: described biochemical system comprises anaerobic pond, anoxic pond and Aerobic Pond, all containing dephosphorization bacterial in described anaerobic pond and Aerobic Pond, containing facultative anaerobe with instead digest bacterium in described anoxic pond.
5. a kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant according to claim 1 or 4, is characterized in that: described waste water is introduced into anaerobic pond, then enters anoxic pond, finally enters Aerobic Pond.
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| CN201520180230.0U CN204529610U (en) | 2015-03-27 | 2015-03-27 | A kind of photocatalytic oxidation associating biochemical process process halohydrocarbon waste water plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417875A (en) * | 2015-12-11 | 2016-03-23 | 深圳市盘古环保科技有限公司 | Wastewater treatment method and device |
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2015
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417875A (en) * | 2015-12-11 | 2016-03-23 | 深圳市盘古环保科技有限公司 | Wastewater treatment method and device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |
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| CF01 | Termination of patent right due to non-payment of annual fee |