CN204474488U - A kind of immersion type anaerobic film bioreactor - Google Patents
A kind of immersion type anaerobic film bioreactor Download PDFInfo
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- CN204474488U CN204474488U CN201420706361.3U CN201420706361U CN204474488U CN 204474488 U CN204474488 U CN 204474488U CN 201420706361 U CN201420706361 U CN 201420706361U CN 204474488 U CN204474488 U CN 204474488U
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Abstract
A kind of immersion type anaerobic film bioreactor: iron-carbon micro-electrolysis device, be provided with water-in, iron-carbon micro-electrolysis device inside is filled with iron carbon filler, and the bottom of iron-carbon micro-electrolysis device is provided with gas distribution layer, in this gas distribution layer, be provided with aerating apparatus, this aerating apparatus connects pneumatic pump; The water outlet of iron-carbon micro-electrolysis device connects equalizing tank, is provided with whipping appts in equalizing tank, and the water outlet of equalizing tank connects the water-in of anaerobic membrane bioreactor by intake pump; Anaerobism combined stuffing is filled with in anaerobic membrane bioreactor, bottom in anaerobic membrane bioreactor is provided with anaerobic reactor aerating apparatus, this anaerobic reactor aerating apparatus connects the methane outlet on anaerobic membrane bioreactor top by biogas recirculation pump, and the top of anaerobic reactor aerating apparatus is provided with plate type membrane component; The water outlet of this plate type membrane component junctional membrane pipe blow-through and go out water pump respectively; Intake pump and go out water pump electrical connection Controlling System.
Description
Technical field
The utility model belongs to technical field of waste water processing, relates to a kind of device for the treatment of high density acrylic acid wastewater particularly, relates more specifically to a kind of immersion type anaerobic film bioreactor.
Background technology
A large amount of high concentrated organic wastewater can be produced in acrylicacidandesters class production process, its organic concentration is high, complicated component, have remarkable Ecotoxicology, if directly discharge can cause severe contamination.
At present, the treatment process of high density acrylic acid wastewater mainly contains burning method, Wet Catalytic Oxidation Method and biochemical process.Wherein, during burning method process acrylic acid wastewater, energy consumption cost is higher and have secondary pollution; Wet Catalytic Oxidation Method has high high temperature resistant, high pressure and the requirement such as corrosion-resistant to reactor material, and running cost is high.Acrylic acid wastewater biochemical treatment, especially Anaerobic biotreatment method, be in recent years progressively grow up low consumption, low operating cost treatment technology, but also face the problem of stability and reliability aspect simultaneously, for this respect technological innovation and to improve be the main development direction processing such waste water at present.
Patent No. CN 102491582A discloses a kind of integrated conduct method of high-concentration aldehyde acrylic wastewater, the bio-toxicity of acrylic acid wastewater is reduced by full gear reaction, adopt anaerobic-aerobic coupling biological process as main body treatment process, but water outlet only reaches country " integrated wastewater discharge standard " (GB8978-1996) three grades of emission standards, and complex process, capacity of resisting impact load is limited.
Patent No. CN 202576164U discloses a kind of vinylformic acid and contains ester Waste Water Treatment, this system comprises multistage MBR filtration unit, ozone-mixing device, active carbon filtering device etc., the filtering film component used is hollow fiber film assembly, its contamination resistance is weak, and Membrane cleaning trouble, control complicated.
Patent No. CN 101781059A discloses a kind of immersion type anaerobic film bioreactor, and the membrane module of this device is separated setting with main reaction region, and contamination resistance is not strong, and is not suitable for processing the larger high-concentration waste water of toxicity.
Utility model content
The purpose of this utility model is to provide a kind of device for the treatment of high density acrylic acid wastewater.
For achieving the above object, the device for the treatment of high density acrylic acid wastewater that the utility model provides is immersion type anaerobic film bioreactor, comprising:
One iron-carbon micro-electrolysis device, is provided with a water-in, and iron-carbon micro-electrolysis device inside is filled with iron carbon filler, and the bottom of iron-carbon micro-electrolysis device is provided with a gas distribution layer, in this gas distribution layer, be provided with aerating apparatus, and this aerating apparatus connects a pneumatic pump;
The water outlet of iron-carbon micro-electrolysis device connects equalizing tank, is provided with whipping appts in equalizing tank, and the water outlet of equalizing tank connects the water-in of anaerobic membrane bioreactor;
Anaerobism combined stuffing is filled with in anaerobic membrane bioreactor, bottom in anaerobic membrane bioreactor is provided with anaerobic reactor aerating apparatus, this anaerobic reactor aerating apparatus connects the methane outlet on anaerobic membrane bioreactor top by a biogas recirculation pump, and the top of anaerobic reactor aerating apparatus is provided with plate type membrane component; The water outlet of this plate type membrane component connects a Membrane cleaning pipeline and respectively and goes out water pump;
Intake pump and go out water pump and be electrically connected a Controlling System.
In described immersion type anaerobic film bioreactor, the 60%-80% that the 10%-30% that the carbon in iron carbon filler is the amount of filling out gross weight, iron are filler gross weight, the loadings of iron carbon filler is 1-2kg/L.
In described immersion type anaerobic film bioreactor, the water outlet of equalizing tank connects the water-in of anaerobic membrane bioreactor by intake pump.
In described immersion type anaerobic film bioreactor, anaerobism combined stuffing is high density polyethylene(HDPE), be 15-30mm Pall ring and cellular macrobead filler and particle diameter by external diameter be that the granular small-particle filler of 1-4mm forms, macrobead filler loadings is 10-20g/L, and the loadings of small-particle filler is 5-10g/L.
In described immersion type anaerobic film bioreactor, the water outlet of plate type membrane component and go out between water pump to be provided with flowing water Valve and tensimeter.
In described immersion type anaerobic film bioreactor, between the water outlet of plate type membrane component and Membrane cleaning pipeline, be provided with wash-out valve.
In described immersion type anaerobic film bioreactor, methane outlet connects a gas meter by vent valve.
In described immersion type anaerobic film bioreactor, aperture≤0.4 μm of plate type membrane component, intermembranous apart from 6-8mm.
The beneficial effects of the utility model are:
Can effectively administer high density acrylic acid wastewater, iron-carbon micro-electrolysis pre-treatment PARA FORMALDEHYDE PRILLS(91,95) clearance between 30%-40%, to COD clearance > 40%; SAnMBR to clearance >=98% of COD, PARA FORMALDEHYDE PRILLS(91,95) clearance >=95%.Water outlet COD after said process process
crbetween 100-180mg/L, concentration of formaldehyde≤1mg/L, pH is 7-8, and water outlet COD reaches " integrated wastewater discharge standard " (GB 8978-1996) secondary discharge standard.Drop into anaerobism combined stuffing simultaneously and can slow down film surface contamination, maintain normal membrane flux, Membrane cleaning is convenient.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present utility model:
Wherein:
1 iron-carbon micro-electrolysis device, 2 iron carbon fillers, 3 gas distribution layer, 4 aerating apparatuss, 5 water-ins, 6 pneumatic pumps, 7 air, 8 equalizing tanks, 9 whipping apptss, 10 intake pumps, 11 Controlling System, 12 go out water pump, 13 tensimeters, 14 flowing water Valves, 15 wash-out valves, 16 anaerobic membrane bioreactors, 17 water-ins, 18 water outlets, 19 small-particle fillers, 20 macrobead fillers, 21 plate type membrane components, 22 anaerobic membrane bioreactor aerating apparatuss, 23 methane outlets, 24 vent valves, 25 gas meters, 26 biogas recirculation pumps, 27 Membrane cleaning pipelines, 28 water outlets.
Embodiment
The utility model is the problems such as the capacity of resisting impact load in order to encounter when solving known technology mesophytization method process acrylic acid wastewater is low, pollutant removal is unstable, contamination resistance is not strong, membrane module cleaning trouble, and proposes the board-like membrane bioreactor of a kind of immersion type anaerobic for the treatment of high density acrylic acid wastewater and treatment process.
The high density acrylic acid wastewater of the utility model indication, refers to COD by art-recognized
crconcentration is 10000-40000mg/L, and concentration of formaldehyde is 10000-25000mg/L.
Below in conjunction with drawings and Examples, the utility model is described in further detail, but embodiment does not limit protection domain of the present utility model.
Refer to Fig. 1.Immersion type anaerobic film bioreactor of the present utility model, mainly comprises:
One iron-carbon micro-electrolysis device 1, be provided with a water-in 5, the inside of iron-carbon micro-electrolysis device 1 is filled with iron carbon filler 2, the 60%-80% that the 10%-30% that the carbon in iron carbon filler is filler gross weight, iron are filler gross weight, and the loadings of iron carbon filler is 1-2kg/L.The bottom of iron-carbon micro-electrolysis device is provided with a gas distribution layer 3, in this gas distribution layer 3, be provided with aerating apparatus 4, and this aerating apparatus 4 connects a pneumatic pump 6, and air 7 is imported aerating apparatus 4.
The water outlet of iron-carbon micro-electrolysis device 1 connects equalizing tank 8, and be provided with whipping appts 9 in equalizing tank 8, the water outlet of equalizing tank 8 connects the water-in 17 of anaerobic membrane bioreactor (hereinafter referred to as SAnMBR) 16 by intake pump 10.
Anaerobism combined stuffing is filled with in SAnMBR, anaerobism combined stuffing is high density polyethylene(HDPE), be 15-30mm Pall ring and cellular macrobead filler 20 and particle diameter by external diameter be that the granular small-particle filler 19 of 1-4mm forms, macrobead filler loadings is 10-20g/L, and the loadings of small-particle filler is 5-10g/L.Bottom in SAnMBR is provided with anaerobic reactor aerating apparatus 22, this anaerobic reactor aerating apparatus 22 connects the methane outlet 23 on anaerobic membrane bioreactor 16 top by a biogas recirculation pump 26, methane outlet 23 connects a gas meter 25 by vent valve 24, a part for the methane outlet 23 of SAnMBR is through the outer row of gas meter 25, and another part is through the inlet mouth UNICOM of biogas recirculation pump 26 with anaerobic membrane bioreactor 16.
The top of anaerobic reactor aerating apparatus 22 is provided with plate type membrane component 21; The water outlet 18 of this plate type membrane component 21 connects a Membrane cleaning pipeline 27 and respectively and goes out water pump 12, processes water outlet 28 up to standard and flows out water pump 12 and discharge.Be provided with wash-out valve 15 between the water outlet 18 of plate type membrane component 21 and Membrane cleaning pipeline 27, and go out between water pump 12 to be provided with flowing water Valve 14 and tensimeter 13.Plate type membrane component of the present utility model adopts board-like MBR (membrane bioreactor) membrane module, aperture≤0.4 μm, intermembranous apart from 6-8mm.
Intake pump in said apparatus 10 and go out water pump 12 and be electrically connected a Controlling System 11, controls intake pump by Controlling System 11 and goes out startup and the stopping of water pump.
The utility model utilizes the method for above-mentioned immersion type anaerobic film bioreactor process high density acrylic acid wastewater, and concrete steps are:
1) first regulate the pH to 2-3 of acrylic acid wastewater, then waste water is introduced in iron-carbon micro-electrolysis device carry out pre-treatment, utilize air aeration to make waste water be boiling state; Reaction times is 2-4h.The pH of reaction solution constantly can rise along with the carrying out of reaction, is finally stabilized between 5-6.The Main Function of iron-carbon micro-electrolysis device utilizes rail carbon micro-electrolytic processes to reduce the small molecules toxic organic compound concentration such as the COD of waste water and formaldehyde.
2), after step 1 processes, regulate pH of mixed to be between 6.5-8.0, after staticly settling 0.5-1h, get supernatant liquor.The effect of equalizing tank adopts the Fe in coagulant sedimentation removal reaction solution
3+and some can by the pollutent adsorbed.
3) the supernatant liquor sanitary sewage after step 2 processes dilutes, Dilution ratio is that 1 volume waste water mixes with the sanitary sewage of 2-10 times of volume, regulate this pH of mixed to be 7-8, use nitrogen salt and microcosmic salt to regulate mixed solution COD (chemical oxygen demand (COD)): TN (total nitrogen): TP (total phosphorus) is 150-300:3-10:1.By deployed water inlet by water pump lifting in SAnMBR, under control of the control system, the height of level stability 30-100cm above membrane module; Temperature controls at 30-35 DEG C; Water outlet takes out/and be 5-8min/2min between the stopping time; Hydraulic detention time controls at 36h-72h.Biological degradation and membrane sepn effect are integrated in one by this element, mainly remove dissolved organic matter and suspended matter in waste water further.Nitrogen salt is ammonium chloride or urea, and microcosmic salt is potassium primary phosphate or potassium hydrogen phosphate.
4) SAnMBR adopts biogas recirculation to carry out aeration to film surface and wash away, and aeration intensity is 12-80L/ (m
2min).Anaerobism combined stuffing is added in SAnMBR, under the effect of biogas recirculation, anaerobism combined stuffing mixes completely with mud mixed liquid, and the effect of macrobead filler (Pall ring and honeycomb padding) is to provide bio-carrier, improves the biomass in reactor; Granular small-particle filler can enter film gap under aeration effect, with film surface impacts, decelerating membrane pollution, maintains stable membrane flux.
Embodiment
1) COD of the high density acrylic acid wastewater adopted
crconcentration is 24000mg/L, and concentration of formaldehyde is 14000mg/L, pH is 2.18.First regulate the pH to 3.0 of acrylic acid wastewater with sodium hydroxide solution, then carry out pre-treatment by this waste water introducing iron-carbon micro-electrolysis device, the carbon concentration of iron carbon filler used is 15%, concentration of iron is 75%; The loadings of iron carbon filler is 1.5kg/L; Bottom packing tower, aerating apparatus is housed, utilizes air aeration to make waste water be boiling state; Reaction times is 3h.The pH of reaction solution constantly can rise along with the carrying out of reaction, is finally 5.5.
2) get the water outlet after step 1 process, hydro-oxidation sodium solution regulates pH to 7.5, gets supernatant liquor after staticly settling 1h.
3) the supernatant liquor sanitary sewage after step 2 processes dilutes, Dilution ratio is that 1 volume waste water mixes with 3 volume sanitary sewages, regulate this pH of mixed to be 7.8 with anhydrous sodium carbonate, use ammonium chloride and potassium primary phosphate to regulate mixed solution COD:TN:TP to be 200:5:1.By deployed water inlet by water pump lifting in SAnMBR, under the manipulation of Controlling System, the height of level stability 40cm above membrane module; Temperature controls at 35 DEG C; Water outlet takes out/and be 5min/2min between the stopping time; Hydraulic detention time controls at 60h.
4) use board-like MBR membrane module in SAnMBR, aperture is 0.1 μm; Adopt biogas recirculation to carry out aeration to film surface to wash away, aeration intensity is 60L/ (m
2min); Anaerobism combined stuffing is added in SAnMBR, this combined stuffing is made up of size two class filler, large filler is that cellular (external diameter is 25mm, loading level in reactor is 10g/L), little filler is that (particle diameter is 2.5mm to particle shape, in reactor, loading level is 10g/L), material is high density polyethylene(HDPE).
In above-mentioned treatment process, iron-carbon micro-electrolysis pre-treatment PARA FORMALDEHYDE PRILLS(91,95) clearance, between 30%, is 40% to COD clearance; SAnMBR is 98% to the clearance of COD, and PARA FORMALDEHYDE PRILLS(91,95) clearance is 95%.Water outlet COD after said process process
crabout 120mg/L, reach " integrated wastewater discharge standard " (GB 8978-1996) secondary discharge standard, concentration of formaldehyde is about 0.68mg/L, pH about 7.5, and processing cost is 25 yuan/m
3left and right.
The online Membrane cleaning key step of SAnMBR of the present utility model is: first close water inlet in SAnMBR, biogas backflow and go out water pump, using the NaClO solution of 0.4%-0.6% as clean-out system, Membrane cleaning liquid is inputted board-like film by pipe blow-through inner, soaks 1-3h.
Claims (7)
1. an immersion type anaerobic film bioreactor, is characterized in that, comprising:
One iron-carbon micro-electrolysis device, is provided with a water-in, and iron-carbon micro-electrolysis device inside is filled with iron carbon filler, and the bottom of iron-carbon micro-electrolysis device is provided with a gas distribution layer, in this gas distribution layer, be provided with aerating apparatus, and this aerating apparatus connects a pneumatic pump;
The water outlet of iron-carbon micro-electrolysis device connects equalizing tank, is provided with whipping appts in equalizing tank, and the water outlet of equalizing tank connects the water-in of anaerobic membrane bioreactor;
Anaerobism combined stuffing is filled with in anaerobic membrane bioreactor, bottom in anaerobic membrane bioreactor is provided with anaerobic reactor aerating apparatus, this anaerobic reactor aerating apparatus connects the methane outlet on anaerobic membrane bioreactor top by a biogas recirculation pump, and the top of anaerobic reactor aerating apparatus is provided with plate type membrane component; The water outlet of this plate type membrane component connects a Membrane cleaning pipeline and respectively and goes out water pump;
Intake pump and go out water pump and be electrically connected a Controlling System.
2. immersion type anaerobic film bioreactor according to claim 1, is characterized in that, the water outlet of equalizing tank connects the water-in of anaerobic membrane bioreactor by intake pump.
3. immersion type anaerobic film bioreactor according to claim 1, it is characterized in that, anaerobism combined stuffing is high density polyethylene(HDPE), be 15-30mm Pall ring and cellular macrobead filler and particle diameter by external diameter be that the granular small-particle filler of 1-4mm forms, macrobead filler loadings is 10-20g/L, and the loadings of small-particle filler is 5-10g/L.
4. immersion type anaerobic film bioreactor according to claim 1, is characterized in that, the water outlet of plate type membrane component and go out between water pump to be provided with flowing water Valve and tensimeter.
5. immersion type anaerobic film bioreactor according to claim 1, is characterized in that, is provided with wash-out valve between the water outlet of plate type membrane component and Membrane cleaning pipeline.
6. immersion type anaerobic film bioreactor according to claim 1, is characterized in that, methane outlet connects a gas meter by vent valve.
7. immersion type anaerobic film bioreactor according to claim 1, is characterized in that, aperture≤0.4 μm of plate type membrane component, intermembranous apart from 6-8mm.
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| CN201420706361.3U CN204474488U (en) | 2014-11-21 | 2014-11-21 | A kind of immersion type anaerobic film bioreactor |
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| CN201420706361.3U CN204474488U (en) | 2014-11-21 | 2014-11-21 | A kind of immersion type anaerobic film bioreactor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512984A (en) * | 2014-11-21 | 2015-04-15 | 北京市环境保护科学研究院 | Acrylic acid wastewater treatment device and method |
| CN105502653A (en) * | 2016-01-28 | 2016-04-20 | 中国科学技术大学 | Anaerobic biological membrane-membrane bioreactor and sewage treatment method |
| CN107098469A (en) * | 2017-06-09 | 2017-08-29 | 中国农业大学 | A kind of anaerobic reactor |
| CN110963647A (en) * | 2019-12-19 | 2020-04-07 | 安徽工程大学 | Treatment method of acrylic acid and lipid wastewater |
| EP4378900A1 (en) * | 2022-11-30 | 2024-06-05 | Lummus Technology LLC | Process and plant for treatment of wastewater stream from acrylic acid and/or acrylate production plant |
-
2014
- 2014-11-21 CN CN201420706361.3U patent/CN204474488U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104512984A (en) * | 2014-11-21 | 2015-04-15 | 北京市环境保护科学研究院 | Acrylic acid wastewater treatment device and method |
| CN104512984B (en) * | 2014-11-21 | 2016-10-12 | 北京市环境保护科学研究院 | A kind of apparatus and method processing acrylic acid wastewater |
| CN105502653A (en) * | 2016-01-28 | 2016-04-20 | 中国科学技术大学 | Anaerobic biological membrane-membrane bioreactor and sewage treatment method |
| CN105502653B (en) * | 2016-01-28 | 2018-05-29 | 中国科学技术大学 | A kind of anaerobic organism film-membrane bioreactor and sewage water treatment method |
| CN107098469A (en) * | 2017-06-09 | 2017-08-29 | 中国农业大学 | A kind of anaerobic reactor |
| CN107098469B (en) * | 2017-06-09 | 2023-04-21 | 中国农业大学 | Anaerobic reactor |
| CN110963647A (en) * | 2019-12-19 | 2020-04-07 | 安徽工程大学 | Treatment method of acrylic acid and lipid wastewater |
| EP4378900A1 (en) * | 2022-11-30 | 2024-06-05 | Lummus Technology LLC | Process and plant for treatment of wastewater stream from acrylic acid and/or acrylate production plant |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150715 Effective date of abandoning: 20161012 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |