CN208345970U - A kind of embrane method printing waste water processing system - Google Patents
A kind of embrane method printing waste water processing system Download PDFInfo
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- CN208345970U CN208345970U CN201820114570.7U CN201820114570U CN208345970U CN 208345970 U CN208345970 U CN 208345970U CN 201820114570 U CN201820114570 U CN 201820114570U CN 208345970 U CN208345970 U CN 208345970U
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Abstract
The utility model discloses a kind of embrane method printing waste water processing systems.This embrane method printing waste water processing system, including sequentially connected coagulating basin, air floatation machine, contact-oxidation pool, sedimentation basin, interior aeration membrane cisterna, fibre turntable filter chamber and ozone decolorization pond.For the high ammonia-nitrogen wastewater of stamp, it is the traditional biological embrane method that anaerobic layer, outer layer are aerobic layer as aerobic section that the system of the utility model, which uses internal layer, using outer layer is the interior aeration embrane method for the anti-convention biofilm structure that anoxic layer, internal layer are aerobic layer as anaerobic environment, it is common to complete ammonification, nitrification, denitrification process, improve nitric efficiency, and sludge output is few, does not have sludge bulking phenomenon.
Description
Technical field
The utility model relates to a kind of embrane method printing waste water processing systems.
Background technique
Currently, printing waste water needs to add a large amount of urea, causes outer in dyeing in order to improve the bright-coloured degree of pattern
Not only have the characteristics that high pollution object concentration, high chroma in effluent, also has the characteristics that high ammonia nitrogen.Traditional processing method is
Using the deformation technique based on activated sludge or contact oxidation method, such as AO technique, AAO technique or the less life of sludge output
Object embrane method, but nitric efficiency can not be all improved, and activated sludge process sludge output is big, energy consumption is high.Biofilm has denitrogenation aspect
Considerable restraint.In traditional biological film, oxygen and substrate are spread by inner layer on the outside of biomembrane, so that nitrifier and aerobic
Heterotroph focuses mostly on biomembrane outer layer.Since nitrifier and aerobic heterotroph in the competition of oxygen to being obviously in a disadvantageous position, so that passing
System biomembrane process nitrifier can not largely breed.Simultaneously because lacking electron donor (carbon source) in denitrification process, influence
The denitrification effect of system.
The coloration of dyeing waste water is also the main contents of sewage treatment.Traditional biochemical process can not be by coloured groups whole
It decomposes, coagulation process is due to dosing coagulant, it is also possible to bring coloration into.It is therefore desirable to further decolorization ability
Qualified discharge.
Utility model content
The purpose of this utility model is to provide a kind of embrane method printing waste water processing systems.
Technical solution adopted in the utility model is:
A kind of embrane method printing waste water processing system, including sequentially connected coagulating basin, air floatation machine, contact-oxidation pool, precipitating
Pond, interior aeration membrane cisterna, fibre turntable filter chamber and ozone decolorization pond；Solid composite filling, filler are hung in contact-oxidation pool
Surface layer growth has microbial film, and the outermost layer of the microbial film is aerobic layer, is inwardly followed successively by anoxic layer and anaerobic layer；Interior aeration
Hollow fiber film thread is hung in membrane cisterna, the growth of hollow fiber film thread surface has microbial film, and the microbial film is near water flow
Outer layer is anaerobic layer, and centre is anoxic layer, and the internal layer near film wire is aerobic layer.
In embrane method printing waste water processing system, aerating system is connected with contact-oxidation pool and interior aeration membrane cisterna respectively.
In embrane method printing waste water processing system, interior aeration membrane cisterna is connected with contact-oxidation pool.
In embrane method printing waste water processing system, fibre turntable filter chamber is connected with coagulating basin.
In embrane method printing waste water processing system, sedimentation basin is connected with sludge treating system.
The beneficial effects of the utility model are:
For the high ammonia-nitrogen wastewater of stamp, it is the tradition of aerobic layer for anaerobism outer layer that the system of the utility model, which uses internal layer,
Biofilm uses outer layer for the interior aeration embrane method for the anti-convention biofilm structure that anoxic layer internal layer is aerobic layer as aerobic section
As anaerobic environment, ammonification, nitrification, denitrification process are completed jointly, improve nitric efficiency, and sludge output is few, it is swollen without sludge
Swollen phenomenon.
Detailed description of the invention
Fig. 1 is the schematic diagram of embrane method printing waste water processing system.
Specific embodiment
A kind of embrane method printing waste water processing system, including sequentially connected coagulating basin, air floatation machine, contact-oxidation pool, precipitating
Pond, interior aeration membrane cisterna, fibre turntable filter chamber and ozone decolorization pond.
Preferably, in embrane method printing waste water processing system, aerating system respectively with contact-oxidation pool and interior aeration membrane cisterna phase
Connection.
Preferably, in embrane method printing waste water processing system, interior aeration membrane cisterna is connected with contact-oxidation pool.
Preferably, in embrane method printing waste water processing system, the solid filler of suspension in contact-oxidation pool；Further, solid
Filler is composed of at least two in polypropylene (PP), hydroformylation fiber, terylene.
Preferably, in embrane method printing waste water processing system, hollow fiber film thread is hung in interior aeration membrane cisterna；Further,
Hollow fiber film thread is by polysulfones (PS), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), Kynoar (PVDF)
At least one of be prepared.
Preferably, in embrane method printing waste water processing system, fibre turntable filter chamber is connected with coagulating basin；Further, film
In method printing waste water processing system, the diameter of fibre turntable filter chamber filter disc is 2.5m~3.5m, and single-deck effective area is 10m2~
15m2。
Preferably, in embrane method printing waste water processing system, sedimentation basin is connected with sludge treating system.
Preferably, in embrane method printing waste water processing system, air floatation machine is pressurized dissolved air flotation equipment.
The method for handling printing waste water to the system for using the utility model below is further described below:
The printing waste water of high ammonia nitrogen is pre-processed by coagulation air-float, after removing most of suspended contaminant, into contact
Oxidation pond.Solid composite filling is hung in contact-oxidation pool, the attachment as microorganism.Solid composite filling is by poly- third
Alkene (PP), hydroformylation fiber or terylene are composed.When sewage treatment, the growth of filler surface layer has " traditional microbiological film ".Micro- life
The outermost layer of object film is aerobic layer, is inwardly followed successively by anoxic layer and anaerobic layer.Under conditions of oxygenation, microorganism is in filler surface
Poly- attachment forms biomembrane.When sewage by oxygenation flows through filler with certain flow velocity, the microorganism in biomembrane absorbs, divides
Organic matter in Xie Shui makes to purify the sewage, while the ammonia nitrogen in waste water is in the work of nitrifier (aerobic autotrophic type microorganism)
NO is converted under2 -And NO3 -.It is as follows to react formula:
NH4 ++2O2→NO3 -+H2O+2H+
Water outlet subsequently enters interior aeration membrane cisterna.The hollow fiber film thread of special material production is hung in interior aeration membrane cisterna,
Attachment as microorganism.The growth of hollow fiber film thread surface has " confrontational microbial film ".The microbial film is near water
The outer layer of stream is anaerobic layer, and centre is anoxic layer, and the internal layer near film wire is aerobic layer, by the aerobic bacteria of highly dense, is detested
The composition such as oxygen bacterium, amphimicrobe, fungi, protozoan.Oxygen and pollutant are diffused and transmit from different directions respectively, film
Micropopulation outside silk forms special layered structure.Air is passed through inside hollow fiber film thread, oxygen pressure in film is made
Enter biomembrane through membranous wall with lower, the concentration highest of oxygen close at membranous wall.With oxygen in biomembrane from inside to outside by
Step diffusion, concentration gradually decrease.
It is aerated pressure by control, adjustable pond body is in anaerobism, anoxic or aerobic state.When aeration pressure control exists
When 0.2-0.25MPa, pond body is generally in anaerobic condition, anaerobic environment needed for meeting denitrification, realizes denitrification process, gives up
NO in water2 -And NO3 -It is reduced to N under anoxic conditions and under the action of denitrifying bacterium (facultative heterotrophic bacterium)2.It improves
Nitric efficiency.It is as follows to react formula:
2NO3 -+10e-+12H+→N2+6H2O
When aeration pressure control is in 0.2-0.25MPa, interior " confrontational microbial film " innermost layer being aerated in membrane cisterna is
Nitration reaction may be implemented in aerobic layer, by mineralized nitrogen at nitrate nitrogen；Outermost layer is anaerobic condition, and it is anti-that denitrification may be implemented
It answers, nitrate nitrogen is converted to nitrogen, is removed from water.Therefore, nitrification and denitrification can be achieved at the same time in the pond, greatly improves
Nitric efficiency, and breach traditional A/O technique denitrification percent and be difficult to be more than 90% limitation.
Interior aeration membrane cisterna water part is back to contact-oxidation pool front end, and the ammonia nitrogen not completely removed is carried out nitre again
Change and denitrification improve nitric efficiency.Another part is by the suspended matter in fibre turntable filter chamber removal water outlet, using ozone
Qualified discharge after decoloration.Fibre turntable filter chamber can reduce the SS of waste water, and ozonation system can reduce the coloration of waste water, to ensure
It is up to standard.
The pollutant of fibre turntable filter chamber retention is back to water inlet end, and water body is discharged by coagulation air-float system.
It is described in further detail below by way of content of the specific embodiment to the utility model.
Embodiment:
Attached drawing 1 is the schematic diagram of embrane method printing waste water processing system.Embrane method printing waste water processing system includes being sequentially connected
Coagulating basin, air floatation machine, contact-oxidation pool, sedimentation basin, interior aeration membrane cisterna, fibre turntable filter chamber and ozone decolorization pond.Aeration system
System is connected with contact-oxidation pool and interior aeration membrane cisterna respectively.Interior aeration membrane cisterna is connected with contact-oxidation pool.Contact-oxidation pool
The interior solid filler of suspension.Hollow fiber film thread is hung in interior aeration membrane cisterna.Fibre turntable filter chamber is connected with coagulating basin.Sedimentation basin
It is connected with sludge treating system.
With reference to the accompanying drawing 1, and by taking the stamp scale wastewater treatment of Shantou as an example, illustrate using described in the utility model
Processing system applies the detailed process in wastewater treatment as follows:
Step 1: the waste water 1500m of printing technology outlet3/ d, into coagulating basin, by adding 700mg/L coagulant sulfuric acid
Ferrous and 3mg/L flocculant PAM, the suspended matter in waste water is separated from water, removes suspended matter by pressurized dissolved air flotation equipment
It removes.
Retention time of sewage is 70min, horizontal 4~6mm/s of flow velocity, lower to flow velocity 2mm/s, container pressure 0.4MPa, molten
Gas time 3min, 30~100 μm of bubble diameter.
Step 2: the water outlet of step 1 enters contact-oxidation pool, and aerating system carries out oxygen supply aeration to waste water in pond.Contact oxygen
The microorganism changed on the composite filling hung in pond decomposes the organic pollutant in waste water, reduces the COD in waste water, together
Shi Jinhang nitration reaction, by the mineralized nitrogen in waste water at nitrate nitrogen.
Retention time of sewage is 10h, and TN rate of load condensate is 0.04kgTKN/kgMLSSd, and COD rate of load condensate is
0.167kgCOD/kgMLSSd, gas-water ratio: 10.8:1.
Step 3: the water outlet of step 2 enters interior aeration membrane cisterna, oxygen supply of the hollow-fibre membrane being provided in aerating system
In the case of, in 0.2-0.25MPa, entire pond body is in anaerobic condition for oxygen supply pressure control, forms internal aerobic external anoxic
Special biological membranous layer structure, largely assemble denitrifying bacteria, the high-nitrate state nitrogen waste water come in contact-oxidation pool carries out anti-nitre
Change, is converted to nitrogen discharge water body, realizes denitrogenation.Meanwhile removing other organic pollutant concentration of part.
Retention time of sewage is 4h；TN load is 0.04kgTKN/kgMLSSd.
Step 4: water outlet a part of step 3 is back to contact-oxidation pool front end, the itrogenous organic substance that will do not completely removed
Nitrification and denitrification reaction, circular treatment, it is ensured that higher nitric efficiency are carried out again.The nitrification cenobium that film wire is fallen off simultaneously
It is back to contact-oxidation pool, gives full play to the effect of nitrobacteria in sludge.Reflux ratio: 300%.
Step 5: the water outlet of step 3 enters fibre turntable filter chamber, and the suspended matter in interior aeration membrane cisterna water outlet is filtered removal,
The pollutant in the further degrading waste water of microorganism and energy on turntable.Filter disc diameter 3m, single-deck effective area 12.6m2；Filtering velocity
12m/h；Backwashing period is 1h.
Step 6: the water outlet of step 5 enters ozone decolorization pond, last decolorization is carried out to waste water, while removing part
Pollutant in waste water meets " GB 4287-2012 textile dyeing and finishing industrial water pollution object discharge standard ", it is ensured that wastewater to reach standard row
It puts.Ozone contact tank time of contact: 1.76h, ozone dosage 50mg/L, three sections of ozone contact tank point, the ratio of adding are
50%, 30%, 20%.
The sludge of contact-oxidation pool drains into sludge treating system and is focused on after sedimentation basin.
After the treatment process, after operation in continuous 1 month, the water quality comparison before and after wastewater treatment is as shown in table 1.
1 waste water quality testing result of table
As it can be seen that water outlet meets " GB 4287-2012 textile dyeing and finishing industry after the processing of the processing system of the utility model
Pollution discharge standard " direct emission standard.
Claims (5)
1. a kind of embrane method printing waste water processing system, it is characterised in that: including sequentially connected coagulating basin, air floatation machine, contact oxygen
Change pond, sedimentation basin, interior aeration membrane cisterna, fibre turntable filter chamber and ozone decolorization pond；
Be hung with solid composite filling in contact-oxidation pool, the growth of filler surface layer has microbial film, the microbial film it is outermost
Layer is aerobic layer, is inwardly followed successively by anoxic layer and anaerobic layer；
Hollow fiber film thread is hung in interior aeration membrane cisterna, the growth of hollow fiber film thread surface has microbial film, and the microbial film is most
Outer layer close to water flow is anaerobic layer, and centre is anoxic layer, and the internal layer near film wire is aerobic layer.
2. a kind of embrane method printing waste water processing system according to claim 1, it is characterised in that: aerating system respectively with connect
Touching oxidation pond is connected with interior aeration membrane cisterna.
3. a kind of embrane method printing waste water processing system according to claim 2, it is characterised in that: interior aeration membrane cisterna with contact
Oxidation pond is connected.
4. a kind of embrane method printing waste water processing system according to claim 1, it is characterised in that: fibre turntable filter chamber and mixed
Solidifying pond is connected.
5. a kind of embrane method printing waste water processing system according to claim 1, it is characterised in that: sedimentation basin and Treatment of Sludge
System is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820114570.7U CN208345970U (en) | 2018-01-23 | 2018-01-23 | A kind of embrane method printing waste water processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820114570.7U CN208345970U (en) | 2018-01-23 | 2018-01-23 | A kind of embrane method printing waste water processing system |
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| Publication Number | Publication Date |
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| CN208345970U true CN208345970U (en) | 2019-01-08 |
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| CN201820114570.7U Active CN208345970U (en) | 2018-01-23 | 2018-01-23 | A kind of embrane method printing waste water processing system |
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2018
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