CN105600924A - Device and method for strengthening anaerobic MBR (membrane bioreactor) process performance by adding bamboo charcoal particles - Google Patents

Device and method for strengthening anaerobic MBR (membrane bioreactor) process performance by adding bamboo charcoal particles Download PDF

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Publication number
CN105600924A
CN105600924A CN201510976753.0A CN201510976753A CN105600924A CN 105600924 A CN105600924 A CN 105600924A CN 201510976753 A CN201510976753 A CN 201510976753A CN 105600924 A CN105600924 A CN 105600924A
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China
Prior art keywords
bamboo charcoal
anaerobic
charcoal particle
reactor
processing performance
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Pending
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CN201510976753.0A
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Chinese (zh)
Inventor
朱亮
夏天
高心怡
汪彩琴
徐向阳
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Zhejiang University ZJU
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Zhejiang University ZJU
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Priority to CN201510976753.0A priority Critical patent/CN105600924A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/2853Anaerobic digestion processes using anaerobic membrane bioreactors
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • C02F3/2806Anaerobic processes using solid supports for microorganisms

Abstract

The invention discloses a device and a method for strengthening anaerobic MBR (membrane bioreactor) process performance by adding bamboo charcoal particles. The device comprises an anaerobic EGSB (expanded granular sludge bed) reactor and a membrane assembly, wherein the bottom of a barrel of the anaerobic EGSB reactor is connected with a water feed pump; a water distribution pipe is arranged at the lower part in the barrel, a three-phase separator is arranged at the upper part, and a sludge bed is arranged in the middle; the upper part and the lower part of the sludge bed are connected through a pipeline provided with a circulating pump for formation of back flow; an overflow weir and a water discharge channel are arranged on the side wall of the barrel above the three-phase separator, and the membrane assembly is connected with the water discharge channel. Efficient utilization and resourceful utilization of bamboo product wastewater by an anaerobic MBR are strengthened by adding bamboo charcoal particles with certain sizes in proportion. Oxygen is prevented from entering inside space by fine micropore structures in the surface of bamboo charcoal, and a better living environment is provided for anaerobic microorganisms. Besides, the bamboo charcoal has higher adsorption function on pollutants, pollution of the membrane assembly can be reduced, and the service life of the membrane assembly is prolonged.

Description

Add the devices and methods therefor of bamboo charcoal particle reinforced anaerobic MBR processing performance
Technical field
The present invention relates to sewage treatment area, be specifically related to one and add bamboo charcoal particle reinforced anaerobic MBR techniqueThe devices and methods therefor of performance.
Background technology
The characteristic secondary industry prosperities such as China's chemical industry, medicine, printing and dyeing and bamboo product, the wastewater discharge bringingGreatly, degraded is difficult, handling property is not good, operating cost is high, to local Sewage Plant operating load and waterEnvironmental security causes very big impact. At present, process this class waste water, adopt biological treatment more, and with aerobic method orThe modified (as A/O technique etc.) of aerobic method is main,
The also employing anaerobic bio-treated having. But mainly exist in actual motion, technological process is long, additional thing amountThe problems such as large and expense is high, thus cause that unit water yield cost and unit water yield cost are all higher on the whole. .
Anaerobic membrane bioreactor is the novel anaerobic treatment process of one that development in recent years rises, because membrane filtration is doneWith coupling, not only can be by all sludge retentions in anaerobic biological reactor, and by large molecular contaminationThing is also trapped in reactor, realizes hydraulic detention time and separates with the thorough of sludge age, eliminates traditional anaerobism rawThe problem such as sludge bulking and acidifying in thing treatment process. But the water yield is large, pollutant component is multiple for processingAssorted bamboo product waste water, traditional anaerobic membrane bioreactor water outlet is still difficult up to standard, and faces serious film pollutionProblem.
Summary of the invention
The object of the invention is to solve problems of the prior art, and it is strong to provide one to add bamboo charcoal particleChange the device of anaerobism MBR processing performance, concrete technical scheme is as follows:
A device that adds bamboo charcoal particle reinforced anaerobic MBR processing performance, comprises anaerobic expanded granular sludgeBed bioreactor and membrane module, the cylinder body bottom of described anaerobic expanded granular sludge bed reactor and intake pump phaseConnect; In cylindrical shell, bottom is provided with water distributor, and top is provided with three phase separator, and middle part is Sludge Bed; Sludge Bed topBe connected by the pipeline that is provided with circulating pump with bottom, form and reflux; On the cylinder lateral wall of three phase separator top, establishHave downflow weir and outlet canal, membrane module is connected with outlet canal.
As preferably, described membrane module is the PVDF hollow fiber filter membrane being arranged in film chamber.
As preferably, the concentrate recirculation producing in described membrane module is to anaerobic expanded granular sludge bed reactor.
As preferably, in described cylinder lateral wall, be provided with the cavity of supplying hot water circulation, this cavity passes through hot water circuitPump and hot water bath cabinet are connected to form closed circuit, in hot water bath cabinet, are provided with heating rod.
As preferably, in described Sludge Bed, be filled with the activated sludge that adds bamboo charcoal particle.
Another object of the present invention is to provide a kind of use described device add bamboo charcoal particle reinforced anaerobicThe method of MBR processing performance, comprises the following steps:
1) get anaerobic activated sludge, in activated sludge, add bamboo charcoal particle, mix;
2) inoculation step 1 in anaerobic expanded granular sludge bed reactor) mud that obtains;
3) adopt the bamboo product waste water after dilution to tame mud, VFA maintains 1000mg/L all the timeBelow, until reactor stable operation;
4) with the anaerobic expanded granular sludge bed reactor that is placed with the rear mud of domestication, bamboo product waste water is given birth toThing processing, water inlet pH is adjusted between 6.8-7.2, and system temperature is controlled at 30-35 DEG C, and reactor water outlet is againFilter and advanced treating with membrane module.
As preferably, described bamboo product waste water COD is 18000mg/L, and ammonia nitrogen is 500mg/L, TOC6000mg/l, 400 times of colourities.
As preferably, when inoculation, seed sludge amount accounts for the 30%-50% of reactor effective volume, seed sludgeConcentration MLSS is 40-50g/L, and MLVSS is 15-25g/L; In postvaccinal reactor, volatility suspends solidBulk concentration is 10-15g/L, sludge loading 0.05-0.1kgCOD/ (kgMLSSd).
As further preferred, described step 1) in, the ratio that the adds (matter of bamboo charcoal particle and activated sludgeAmount ratio) be: 1:1, the particle diameter of bamboo charcoal particle is 0.2-1mm.
The present invention adds bamboo charcoal in anaerobic reactor, and its microcellular structure stops oxygen to enter inner space, for detestingOxygen animalcule provides suitable habitat, and larger specific area is beneficial to adhering to and biomembranous shape of microorganismBecome; In addition, bamboo charcoal itself has stronger suction-operated to pollutant, and slows down membrane module and pollute, extend itService life. Therefore, by adding bamboo charcoal particle, can process bamboo product waste water performance by reinforced anaerobic MBR,Give process stabilizing, efficient, low consumption operation, there is higher using value. The bamboo charcoal adding is cheap,Can, in bamboo product production process, process and make by leftover pieces, in the cyclic utilization of waste, strengthened uselessAquatic organism treatment system performance.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the device that adds bamboo charcoal particle reinforced anaerobic MBR processing performance;
In figure: water tank 1, intake pump 2, water distributor 3, Sludge Bed 4, three phase separator 5, downflow weir 6,Outlet canal 7, water-sealed drainage bottle 8, wet gas flow meter 9, hot water circulating pump 10, heating rod 11, hot water bath cabinet12, circulating pump 13, anaerobic expanded granular sludge bed cylindrical shell 14, film chamber 15, PVDF hollow fiber filter membrane 16.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further elaborated and is illustrated. Each enforcement in the present inventionThe technical characterictic of mode is not having under conflicting prerequisite, all can carry out respective combination.
As shown in Figure 1, a kind of device that adds bamboo charcoal particle reinforced anaerobic MBR processing performance adopts anaerobism swollenSwollen granular sludge bed reactor (EGSB), after connect hyperfiltration membrane assembly. Cylindrical shell 14 bottoms of reactor are by enteringWater pump 2 is connected with water tank 1, stores pending waste water in water tank 1; The interior bottom of cylindrical shell 14 is provided with water distributor 3,Top is provided with three phase separator 5, and middle cavities is Sludge Bed 4; Sludge Bed 4 upper and lowers are followed by being provided withThe pipeline of ring pump 13 is connected, and forms and refluxes. Three phase separator 5 separates mud, gas, liquid,The downflow weir 6 that liquid is provided with from cylindrical shell 14 sidewalls of top is discharged, and flows into film group after outlet canal 7Part; Mud sinks to refluxing, and gas overflows from three phase separator 5 tops. In present embodiment, three phase separator5 tops are also connected with wet gas flow meter 9 by water-sealed drainage bottle 8, for gas production is measured.
Membrane module is made up of film chamber 15 and PVDF hollow fiber filter membrane 16, PVDF hollow fiber filter membrane 16Be arranged in film chamber 15. The concentrate recirculation producing in membrane module is to water tank 1, more again squeezes into anaerobic expandedIn grain sludge bed reactor, process.
For the ease of regulating reaction temperature, in cylindrical shell 14 sidewalls, be provided with the cavity of supplying hot water circulation, this cavity passes throughHot water circulating pump 10 is connected to form closed circuit with hot water bath cabinet 12, is provided with heating rod 11 in hot water bath cabinet 12.
Embodiment
Utilize said apparatus to process bamboo product waste water, experimental group (interpolation bamboo charcoal) and contrast are set simultaneouslyGroup (not adding bamboo charcoal), in addition other reaction conditions are identical. EGSB reactor effective volume is 5.5L,The membrane aperture 0.02 μ m of PVDF hollow fiber filter membrane 16, membrane area 0.07m2
The sewage disposal flow process of experimental group is as follows:
1) get about 100g anaerobic activated sludge, to the bamboo charcoal that adds 100g particle diameter 0.5mm in activated sludgeParticle, mixes; Seed sludge concentration MLSS is 44.57g/L, and MLVSS is 16.61g/L;
2) in anaerobic expanded granular sludge bed reactor, inoculate 2.2L step 1) mud that obtains; Inoculation is dirtyMud amount accounts for 40% of reactor effective volume, and in postvaccinal reactor, VSS concentration is 10G/L, organic loading 0.5kgCOD/ (m3·d)。
3) adopt bamboo product waste water to tame mud, VFA maintains below 1000mg/L all the time, straightTo reactor stable operation. The waste water quality situation that the domestication stage adopts is as follows: dilution bamboo product waste water is to COD1000mg/L, TOC300mg/L, ammonia nitrogen 30mg/L, does not add nutriment, adopts former water domestication,Make mud adapt to sooner complicated water quality, reach sooner better removal efficiency in initial start stage;
4), after having tamed, device is used for to bamboo product wastewater treatment. Reactor water inlet adopts bamboo product waste water,Add NaHCO3Powder, fluctuates between 6.8-7.2 with the pH that ensures to intake, and temperature maintains 30-35 DEG C, profitIn improving methanogen activity, hydraulic detention time (HRT) 2 days, with continuous water intake mode operation 60 days.Reactor water outlet is filtered and advanced treating with membrane module again. Influent COD, TOC, ammonia nitrogen concentration are graduallyImprove, COD rises to 18000mg/l by 2000mg/l, and TOC concentration rises to 6000mg/l by 1000mg/l,Ammonia nitrogen concentration rises to 500mg/l by 50mg/l. Organic loading is with 0.5kgCOD/ (m3D) promote, prevent from bearingLotus promotes and too fast reactor is impacted, until the water inlet of former water, whenever COD clearance reach 80% andVFA can promote load lower than 1000mg/l.
The reaction condition of control group is identical with experimental group, and difference is only not add in activated sludge bamboo charcoal particle.
Finally water outlet is monitored to discovery, COD, TOC, ammonia nitrogen removal frank are respectively 90%, 96%, 52.7%,And control group COD, TOC, ammonia nitrogen removal frank are respectively 79%, 92%, 45.9%. Ammonia nitrogen removal is mainly logicalCross film crown_interception. The membrane flux of control group hyperfiltration membrane assembly is down to 15.2L/m2H, film resistance rises to 5.16 × 1012m-1, and after adding bamboo charcoal, membrane flux maintains 21.9L/m2H, film resistance is 3.94 × 1012m-1
Above-described embodiment is preferably scheme of one of the present invention, and so it is not intended to limiting the invention,All technical schemes of taking the mode that is equal to replacement or equivalent transformation to obtain, all drop on protection scope of the present inventionIn.

Claims (9)

1. a device that adds bamboo charcoal particle reinforced anaerobic MBR processing performance, is characterized in that, comprises and detestingOxygen CGSB and membrane module, the cylindrical shell of described anaerobic expanded granular sludge bed reactor(14) bottom is connected with intake pump (2); The interior bottom of cylindrical shell (14) is provided with water distributor (3), and top is provided withThree phase separator (5), middle part is Sludge Bed (4); Sludge Bed (4) upper and lower is by being provided with circulating pump(13) pipeline is connected, and forms and refluxes; Cylindrical shell (14) sidewall of three phase separator (5) top is provided withDownflow weir (6) and outlet canal (7), membrane module is connected with outlet canal (7).
2. the device that adds bamboo charcoal particle reinforced anaerobic MBR processing performance as claimed in claim 1, its featureBe, described membrane module is for being arranged at the PVDF hollow fiber filter membrane (16) in film chamber (15).
3. the device that adds bamboo charcoal particle reinforced anaerobic MBR processing performance as claimed in claim 1, its featureBe, the concentrate recirculation producing in described membrane module is to anaerobic expanded granular sludge bed reactor.
4. the device that adds bamboo charcoal particle reinforced anaerobic MBR processing performance as claimed in claim 1, its spyLevy and be, be provided with the cavity of supplying hot water circulation in described cylindrical shell (14) sidewall, this cavity passes through hot water circuitPump (10) is connected to form closed circuit with hot water bath cabinet (12), is provided with heating rod (11) in hot water bath cabinet (12).
5. the device that adds bamboo charcoal particle reinforced anaerobic MBR processing performance as claimed in claim 1, its spyLevy and be, in described Sludge Bed (4), be filled with the activated sludge that adds bamboo charcoal particle.
6. a right to use requires the side that adds bamboo charcoal particle reinforced anaerobic MBR processing performance of installing described in 1Method, is characterized in that, comprises the following steps:
1) get anaerobic activated sludge, in activated sludge, add bamboo charcoal particle, mix;
2) inoculation step 1 in anaerobic expanded granular sludge bed reactor) mud that obtains;
3) adopt the bamboo product waste water after dilution to tame mud, VFA maintains 1000mg/L all the timeBelow, until reactor stable operation;
4) with the anaerobic expanded granular sludge bed reactor that is placed with the rear mud of domestication, bamboo product waste water is given birth toThing processing, water inlet pH is adjusted between 6.8-7.2, and system temperature is controlled at 30-35 DEG C, and reactor water outlet is againFilter and advanced treating with membrane module.
7. the method that adds bamboo charcoal particle reinforced anaerobic MBR processing performance as claimed in claim 1, its spyLevy and be, described bamboo product waste water COD is 18000mg/L, and ammonia nitrogen is 500mg/L, TOC6000Mg/l, 400 times of colourities.
8. the method that adds bamboo charcoal particle reinforced anaerobic MBR processing performance as claimed in claim 1, itsBe characterised in that, when inoculation, seed sludge amount accounts for the 30%-50% of reactor effective volume, seed sludge concentrationMLSS is 40-50g/L, and MLVSS is 15-25g/L; In postvaccinal reactor, VSS is denseDegree is 10-15g/L, sludge loading 0.05-0.1kgCOD/ (kgMLSSd).
9. the method that adds bamboo charcoal particle reinforced anaerobic MBR processing performance of stating as claim 8, its spyLevy and be, described step 1) in, the ratio that adds (mass ratio) of bamboo charcoal particle and activated sludge is: 1:1,The particle diameter of bamboo charcoal particle is 0.2-1mm.
CN201510976753.0A 2015-12-22 2015-12-22 Device and method for strengthening anaerobic MBR (membrane bioreactor) process performance by adding bamboo charcoal particles Pending CN105600924A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105858884A (en) * 2016-06-14 2016-08-17 中国电建集团贵阳勘测设计研究院有限公司 Method and device for treating paper-making wastewater

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CN102260023A (en) * 2011-06-22 2011-11-30 哈尔滨工业大学 Apparatus for treating domestic sewage by utilizing anaerobic expanded granular sludge bed
CN103332833A (en) * 2013-07-22 2013-10-02 哈尔滨工业大学水资源国家工程研究中心有限公司 Anaerobic granular sludge expanded bed-gravity flow membrane filter sewage treatment system and method utilizing same to treat sewage
CN203768185U (en) * 2014-03-21 2014-08-13 安徽华骐环保科技股份有限公司 Coking wastewater treatment system
CN104045158A (en) * 2014-06-26 2014-09-17 清华大学 Intensifying sewage whole-course autotrophic nitrogen removal reactor and intensifying sewage whole-course autotrophic nitrogen removal method
JP2014213320A (en) * 2013-04-29 2014-11-17 株式会社明電舎 Method and device for treating 1,4-dioxane-containing waste water
CN104496019A (en) * 2014-12-23 2015-04-08 李开明 Method for culturing granular sludge in anaerobic reactor
CN204588928U (en) * 2015-02-28 2015-08-26 周宁 A kind of poultry sewage discharge system based on EGSB
CN205294958U (en) * 2015-12-22 2016-06-08 浙江大学 Throw device that adds bamboo soot particle and reinforce anaerobism MBR processing performance

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102260023A (en) * 2011-06-22 2011-11-30 哈尔滨工业大学 Apparatus for treating domestic sewage by utilizing anaerobic expanded granular sludge bed
JP2014213320A (en) * 2013-04-29 2014-11-17 株式会社明電舎 Method and device for treating 1,4-dioxane-containing waste water
CN103332833A (en) * 2013-07-22 2013-10-02 哈尔滨工业大学水资源国家工程研究中心有限公司 Anaerobic granular sludge expanded bed-gravity flow membrane filter sewage treatment system and method utilizing same to treat sewage
CN203768185U (en) * 2014-03-21 2014-08-13 安徽华骐环保科技股份有限公司 Coking wastewater treatment system
CN104045158A (en) * 2014-06-26 2014-09-17 清华大学 Intensifying sewage whole-course autotrophic nitrogen removal reactor and intensifying sewage whole-course autotrophic nitrogen removal method
CN104496019A (en) * 2014-12-23 2015-04-08 李开明 Method for culturing granular sludge in anaerobic reactor
CN204588928U (en) * 2015-02-28 2015-08-26 周宁 A kind of poultry sewage discharge system based on EGSB
CN205294958U (en) * 2015-12-22 2016-06-08 浙江大学 Throw device that adds bamboo soot particle and reinforce anaerobism MBR processing performance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105858884A (en) * 2016-06-14 2016-08-17 中国电建集团贵阳勘测设计研究院有限公司 Method and device for treating paper-making wastewater
CN105858884B (en) * 2016-06-14 2019-05-07 中国电建集团贵阳勘测设计研究院有限公司 A kind of processing method and processing device of paper waste

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Application publication date: 20160525

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