CN110194566A - A kind of device and method handling micropollutant water - Google Patents
A kind of device and method handling micropollutant water Download PDFInfo
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- CN110194566A CN110194566A CN201910527266.4A CN201910527266A CN110194566A CN 110194566 A CN110194566 A CN 110194566A CN 201910527266 A CN201910527266 A CN 201910527266A CN 110194566 A CN110194566 A CN 110194566A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
- C02F2101/363—PCB's; PCP's
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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Abstract
The present invention relates to a kind of device and methods for handling micropollutant water, belong to micropollutant water processing technology field.Device of the present invention includes concatenated level-one aerobic biologic membrane moving bed biofilm reactor and second level photochemical catalytic oxidation moving bed biofilm reactor.Device of the present invention can efficiently remove PPCPs pollutant in micropollutant water, and operating cost is low.
Description
Technical field
The present invention relates to micropollutant water processing technology fields, and in particular at a kind of application second level coupling MBBR reactor
Manage the device and method of micropollutant water.
Background technique
It is detected according to environmental protection administration, the urban waters in 90% or more China are heavily contaminated, and there are about 50% key cities
Water source does not meet drinking water source standard, and the water quality of national surface water nearly 60% or more is reduced to the following water quality of IV class, loses completely
The function as drinking water source is gone, has 97% big and medium-sized cities underground water to be also contaminated, people is not only given in the pollution of source water
The health of class brings biggish harm, and makes a big impact to traditional water-purifying process and water quality.With people's lives matter
The continuous improvement of amount tests and analyzes being constantly progressive for means, and requirement of the people to drinking water quality will be more stringent, corresponding to supply water
Water standard will also be continuously improved.Therefore, for the purified treatment of micro-polluted raw have become one it is extremely important and urgent
New issue.
With the use in life such as various kinds of drug and cosmetics, detergent, Pharmaceuticals and personal care products (PPCPs)
Have become a kind of apparent micropollutants in water environment.Multiple Environmental Studies mechanisms carry out the PPCPs in different water bodys
The research and evaluation of concentration and risk, it was found that in multiple surface water bodies in China, antibiotics become have it is higher
Or the potential ecological risk factor.Especially the concentration of antibiotic is obvious in livestock and poultry farm and aquatic farm surrounding body
Higher than other water bodys.
Using the typical pollutant PPCPs in micropollutant water as main study subject, municipal sewage plant is most common
Treatment process is activated sludge process and biofilm, from the point of view of the operative practice of many years, though activated sludge process is more mature,
Have the shortcomings that many and deficiency, such as takes up a large area, the influence that capital cost is high, operational effect changes vulnerable to water quality, water
Deng.Biofilm compensates for many deficiencies of activated sludge process, but biofilm also has its distinctive defect, such as biofilter
In filtrate easily block, need to periodically backwash and meanwhile under fixed filler and filler aerator replacement it is more difficult, biological
Carrier granular in fluidized-bed reactor competence exertion effect, the stability of technique only under fluidized state is poor etc..Between
The shortcomings that both the above technique and deficiency, and moving bed biofilm reactor (moving bed bio-film reactor, referred to as
MBBR it) comes into being.MBBR is a kind of novel, efficient sewage treatment facility, is had compared with traditional aerobic treatment process
Lot of advantages is such as not susceptible to block, and without backwash, head loss is small, and organic loading is high, does not need sludge reflux generally
Deng.MBBR technique is flexible in application, can run under the conditions of aerobic, anaerobism is various, both can be used alone, can also plural serial stage progress
Denitrogenation Aerobic Process for Treatment is generally used for organic concentration and the relatively high occasion of organic loading.By MBBR and contact oxidation technology
Combination, Treating Municipal Sewage can obtain satisfied effect, but it is not so good to the treatment effect of micropollutant water.
Summary of the invention
The purpose of the present invention is to provide a kind of device and methods for handling micropollutant water.Device of the present invention can
Efficiently PPCPs pollutant in removal micropollutant water, and operating cost is low.
The present invention provides a kind of devices for handling micropollutant water, and described device includes concatenated level-one aerobic biologic membrane
Moving bed biofilm reactor and second level photochemical catalytic oxidation moving bed biofilm reactor；
The lower end of the level-one aerobic biologic membrane moving bed biofilm reactor is equipped with water inlet, and upper end is equipped with water outlet,
Inside is equipped with micropore aeration pipe, and inside is equipped with biofilm carrier；The biofilm carrier is the suspension molding that surface hangs with biomembrane
Active carbon ball；
The upper end of the second level photochemical catalytic oxidation moving bed biofilm reactor is equipped with water inlet, and lower end is equipped with water outlet,
Inside top is equipped with ultraviolet lamp, and inside is equipped with the carrier of loaded optic catalyst；The carrier of the loaded optic catalyst is load two
The suspension pressed active carbon ball of titanium oxide catalyst.
Preferably, the water outlet of the level-one aerobic biologic membrane moving bed biofilm reactor is equipped with grid.
Preferably, the water outlet of the second level photochemical catalytic oxidation moving bed biofilm reactor is equipped with ultrafiltration membrane.
Preferably, blender is equipped in the level-one aerobic biologic membrane moving bed biofilm reactor.
Preferably, the water intake mode of the second level photochemical catalytic oxidation moving bed biofilm reactor include folded plate plug-flow into
Water mode or mixed-flow water intake mode.
Preferably, the preparation method of the suspension pressed active carbon ball of the catalyst for titanium dioxide loaded includes following
Step:
Suspension pressed active carbon ball is placed in nitrogen sulfur doping titanium dioxide catalyst colloid solution and impregnates 30min, is done
1~1.5h is activated after dry at 400~500 DEG C, obtains the suspension pressed active carbon ball of catalyst for titanium dioxide loaded.
The present invention also provides the methods of the processing micropollutant water of described device based on the above-mentioned technical proposal, including following step
It is rapid:
Micro-polluted raw is passed through level-one aerobic biologic membrane moving bed biofilm reactor, passes through micropore aeration pipe control one
The dissolved oxygen of grade aerobic biologic membrane moving bed biofilm reactor is 3~4mg/L, and the control hydrodynamic force residence time is 6~8h,
Under conditions of 25~30 DEG C of reaction temperature, pH=5~8, coagulation is carried out to micro-polluted raw；
In the level-one aerobic biologic membrane moving bed biofilm reactor biofilm carrier dosage account for reactor volume 30~
50%, the load photocatalysis for accounting for reactor volume 5~20% is added in second level photochemical catalytic oxidation moving bed biofilm reactor
The carrier of agent.
Preferably, the micro-polluted raw is passed through level-one aerobic biologic membrane moving bed biological film reaction by peristaltic pump
Device.
The present invention provides a kind of devices for handling micropollutant water.Device of the present invention uses biomembrane and photocatalysis
Suspension film is coupled synergy principle, is capable of handling persistent organic pollutants, and device of the present invention is good to PPCPs removal effect,
Operating cost is low.Test result show device of the present invention HRT be 8h, 25~30 DEG C of reaction temperature, pH=5~7 item
Under part, 85% or more is reached to the removal effect of antibiotic in antibiotic micro-polluted water.
Detailed description of the invention
Fig. 1 is the schematic device of processing micropollutant water provided by the invention；
Fig. 2 is device (containing the folded plate) schematic diagram for the processing micropollutant water that the embodiment of the present invention 1 provides；
Fig. 3 is the filler pictorial diagram for the processing micropollutant water that the embodiment of the present invention 1 provides；
Fig. 4 is the cylindrical polyethylene plastics biofilm situation map that the embodiment of the present invention 2 provides；
Fig. 5 is the suspension pressed active carbon biofilm situation map that the embodiment of the present invention 2 provides.
Specific embodiment
The present invention provides a kind of devices for handling micropollutant water, and described device includes concatenated level-one aerobic biologic membrane
Moving bed biofilm reactor and second level photochemical catalytic oxidation moving bed biofilm reactor；
The lower end of the level-one aerobic biologic membrane moving bed biofilm reactor is equipped with water inlet, and upper end is equipped with water outlet,
Inside is equipped with micropore aeration pipe, and inside is equipped with biofilm carrier；The biofilm carrier is the suspension molding that surface hangs with biomembrane
Active carbon ball；
The upper end of the second level photochemical catalytic oxidation moving bed biofilm reactor is equipped with water inlet, and lower end is equipped with water outlet,
Inside top is equipped with ultraviolet lamp, and inside is equipped with the carrier of loaded optic catalyst；The carrier of the loaded optic catalyst is load two
The suspension pressed active carbon ball of titanium oxide catalyst.
In the present invention, the preferred referenced patent number of suspension pressed active carbon ball is the special of CN201610189845.9
It is prepared by benefit (a kind of porous prilled floatability absorbent charcoal composite material and preparation method thereof).
Suspension pressed active carbon ball of the present invention can hang up rapidly biomembrane, and the microorganism in film in 4~5 days
Type is more；The photochemical catalyst of higher proportion can be loaded using infusion process, and after repeatedly activating using repetition heat treatment, catalysis
Effect, which has no, to be substantially reduced.In the present invention, the preparation method for hanging biofilm carrier is closed cycle method, specific preferred packet
Include following steps: the inoculation of activated-sludge in level-one aerobic biologic membrane moving bed biofilm reactor keeps COD=400mg/L
It is 3~4mg/L with dissolved oxygen, is passed through simulation sanitary wastewater, 1~2d of domestication is carried out to activated sludge, suspension movable forming is added
Property charcoal ball, being stirred continuously to suspension pressed active carbon ball surface has one layer of biomembrane, obtains biofilm carrier.The simulation life
Waste water is the phosphoric acid of the sucrose for including 245.25mg/L, the sodium acetate of 285.6mg/L, the ammonium chloride of 229.24mg/L, 40mg/L
The aqueous solution of the aluminium chloride of potassium dihydrogen, the ammonium hydrogen carbonate of 354mg/L and 20mg/L.In the present invention, the activated sludge is preferred
For the sludge of sewage plant aerobic section, in embodiments of the present invention, the activated sludge is derived from five Longkou treatment plant aerobic section of Zhengzhou
Activated sludge.Of the present invention be stirred continuously can guarantee that activated sludge comes into full contact with suspension pressed active carbon ball.This
Invention is preferably daily with dissolved oxygen instrument measurement dissolved oxygen content, observation suspension pressed active carbon ball surface biomembrane situation and work
Property sludge state.The present invention preferably controls the dissolution of level-one aerobic biologic membrane moving bed biofilm reactor by micropore aeration pipe
Oxygen.In the present invention, blender is equipped in the level-one aerobic biologic membrane moving bed biofilm reactor.The work of the blender
With being propelling current of equidirectional flowing, while to being oxygenated in water.
The device (second level is coupled MBBR reactor) of processing micropollutant water of the present invention is as shown in Figure 1.The present invention couple
The material of the level-one aerobic biologic membrane moving bed biofilm reactor and second level photochemical catalytic oxidation moving bed biofilm reactor
It is not particularly limited, using plastic products, stainless steel or cement pit.Micropore aeration pipe of the present invention, preferably uses air
Pump is uninterruptedly aerated, and uniform aeration makes dissolved oxygen amount be maintained at 3~4mg/L.The position that micropollutant water of the present invention is placed
Preferably higher than described device is set, high water tank is chosen such as in the specific embodiment of the invention, micropollutant water is placed.
In the present invention, the water outlet of the level-one aerobic biologic membrane moving bed biofilm reactor is equipped with grid.At this
In invention, the effect of grid is to prevent floatability filler with water outlet outflow reactor, material of the present invention to the grid
Matter is not particularly limited, and is ok using general wire netting or plastic net partition.The shape of grid of the present invention with
The overflow groove of water outlet, be traditionally arranged to be rectangular or round.
In the present invention, the water outlet of the second level photochemical catalytic oxidation moving bed biofilm reactor is equipped with ultrafiltration membrane.This
The effect for inventing the ultrafiltration membrane be prevent a small amount of sludge fine crushing contained in water and the catalyst to fall off from carrier and its
His suspended solid impurity is flowed out with water outlet, it is therefore an objective to by the last one film filter, guarantee that the turbidity of water outlet reaches
Higher requirement.The general material of ultrafiltration membrane of the present invention preferably selects microporous barrier or microporous filter screen (200~500
Mesh), activated carbon filter layer etc. can be selected during clean water treatment.Ultrafiltration membrane of the present invention is preferably positioned at secondary light and urges
Change the water outlet of oxidation moving bed biofilm reactor.The elimination mechanism of bacterium is mainly suspension carrier adsorption and light in water
Catalytic degradation sterilization functions.
In the present invention, the water intake mode of the second level photochemical catalytic oxidation moving bed biofilm reactor includes folded plate plug-flow
Water intake mode or mixed-flow water intake mode.When the water intake mode is folded plate plug-flow water intake mode, the second level photocatalytic-oxidation
Change in moving bed biofilm reactor, be equipped with folded plate (folded plate recycle stream dynamic formula photocatalysis tandem reaction device such as Fig. 2 after water inlet
It is shown), the inside of reactor is arranged in the folded plate in a manner of barricade, by the detention of folded plate, makes water flow in flow process
Middle presentation plug-flow recycles water intake mode, this water flow flowing mode can extend water in the reactor contact with photochemical catalyst when
Between, enhance pollutant removal.
In the present invention, it is also preferable to include water reflux pumps for described device.Water reflux pump of the present invention can adjust water body
Flow velocity, and then control the hydrodynamic force residence time.In the present invention, disengaging water is preferably also carried out by flowmeter and peristaltic pump
Control.
The suspension pressed active carbon ball unit volume adsorption capacity that the present invention chooses is big, and plasticity and hardness are high, and energy
Hang up biomembrane rapidly in 4~5 days, and the microbe species in film are more；Carbon Materials can load higher proportion using infusion process
Photochemical catalyst, and by repeatedly using repeat heat treatment activation after, catalytic effect, which has no, to be substantially reduced.In the present invention, institute
State the preparation method of the suspension pressed active carbon ball of catalyst for titanium dioxide loaded the following steps are included:
Suspension pressed active carbon ball is placed in nitrogen sulfur doping titanium dioxide catalyst colloid solution and impregnates 30min, is done
1~1.5h is activated after dry at 400~500 DEG C, obtains the suspension pressed active carbon ball of catalyst for titanium dioxide loaded.This hair
The bright preparation method to the nitrogen sulfur doping titanium dioxide catalyst colloid solution is not particularly limited, using those skilled in the art
Customary preparation methods known to member.In the present invention, the activation carries out preferably in Muffle furnace.The present invention is to described dry
Dry mode is not particularly limited, dry such as in baking oven using conventional drying mode.Titanium deoxide catalyst of the present invention
Load factor calculation method it is preferably as follows: weigh the quality of unsupported catalyst activity charcoal ball, be denoted as M0, activated through Muffle furnace
Active carbon ball quality be M1, the load factor of suspension pressed active carbon ball supported catalyst calculates by following formula:
Suspension pressed active carbon material light catalysis agent load factor=[(M1-M0)/M1] * 100%
In formula:
M0--- the initial mass of suspension pressed active carbon ball；
M1--- the quality after suspension pressed active carbon ball supported catalyst.
The present invention is not particularly limited the preparation method of the nitrogen sulfur doping titanium dioxide catalyst colloid solution, uses
The preparation method of routine nitrogen sulfur doping titanium dioxide catalyst colloid solution well known to those skilled in the art, such as: (1) taking
15mL butyl titanate is slowly dissolve into 60mL dehydrated alcohol, and 2mL glacial acetic acid inhibitor is added, and stirs 30min, is formed shallow
The clear solution of yellow is A liquid.(2) it weighs thiocarbamide 0.5012g to be dissolved in 4mL distilled water, and 40ml dehydrated alcohol is added, use
Nitric acid adjusts pH value of solution to 3.0, forms colourless transparent solution B at this time.(3) with vigorous stirring, A liquid is added dropwise to B
In liquid, continues to stir 2 hours, form yellow transparent colloidal sol.
The present invention also provides the methods of above-mentioned technical proposal described device processing micropollutant water, comprising the following steps:
Micro-polluted raw is passed through level-one aerobic biologic membrane moving bed biofilm reactor, passes through micropore aeration pipe control one
The dissolved oxygen of grade aerobic biologic membrane moving bed biofilm reactor is 3~4mg/L, and the control hydrodynamic force residence time is 6~8h,
Under conditions of 25~30 DEG C of reaction temperature, pH=5~8, coagulation is carried out to micro-polluted raw；
In the level-one aerobic biologic membrane moving bed biofilm reactor biofilm carrier dosage account for reactor volume 30~
50%, the load photocatalysis for accounting for reactor volume 5~20% is added in second level photochemical catalytic oxidation moving bed biofilm reactor
The carrier of agent.
In the present invention, the micro-polluted raw includes the source water polluted by low concentration PPCPs, and the second level of sewage plant goes out
Water, other kinds of urban river water containing PPCPs etc..The present invention is before being passed through micro-polluted raw, preferably to level-one aerobe
Film moving bed biofilm reactor carries out biofilm processing, and the biofilm processing mode is as described above, and details are not described herein again.
Micro-polluted raw is passed through level-one aerobic biologic membrane moving bed biofilm reactor by the present invention, passes through micropore aeration pipe
The dissolved oxygen for controlling level-one aerobic biologic membrane moving bed biofilm reactor is 3~4mg/L, and the control hydrodynamic force residence time is 6
~8h carries out coagulation to micro-polluted raw under conditions of 25~30 DEG C of reaction temperature, pH=5~8.In the present invention,
Dissolved oxygen control is that biofilm reactor is allowed to keep the mode based on Aerobic biological process in the effect of 3~4mg/L.In this hair
In bright, the control hydrodynamic force residence time is preferably 8h, and the setting effect of the control hydrodynamic force residence time is that can allow
COD removal rate in water reaches higher horizontal (60~75%).In the present invention, the control hydrodynamic force residence time passes through
Feed water flow meter or the control of water reflux pump.In the present invention, the reaction temperature is preferably 25 DEG C, and pH value is preferably 5~7.This
At above-mentioned temperature and pH value range, best operational effect is may be implemented in reactor for invention.Level-one aerobe of the present invention
The water outlet of film moving bed biofilm reactor preferably enters the reaction of second level photochemical catalytic oxidation moving-bed biofilm from rim overflow mouth
Device.
Combined with specific embodiments below to it is of the present invention it is a kind of handle micropollutant water device and method do into one
Detailed introduction is walked, technical solution of the present invention includes but is not limited to following embodiment.
Embodiment 1
As shown in Fig. 2, the level-one aerobic biologic membrane that apparatus main body part of the present invention is made of the plastic cylinder of 5L
(carrier adds for moving bed biofilm reactor (carrier is added than 30%) and second level photochemical catalytic oxidation moving bed biofilm reactor
Than 10%).The filler pictorial diagram for handling micropollutant water is as shown in Figure 3.
Nitrogen sulfur doping titanium dioxide catalyst colloid solution is prepared, suspension Constitutive active carbon material is placed in and is prepared
Colloidal solution in impregnate 30min, it is dry in baking oven, finally activate supported catalyst under conditions of 400 DEG C with Muffle furnace
The absorbent charcoal material of agent.Carbon Materials can load the photochemical catalyst of higher proportion using infusion process, and by repeatedly utilizing repetition heat
After processing activation, catalytic effect, which has no, to be substantially reduced.
Biofilm carrier is suspension pressed active carbon ball (D=1.5cm, Surface gap degree 40%, density=0.723g/
m3, the adsorption capacity of methylene blue is 4ml/0.1g).Experiment is carried out by the way of continuous flow.Hydraulic detention time HRT
=8h.Disengaging water is controlled by flowmeter and peristaltic pump.In level-one aerobic biologic membrane moving bed biofilm reactor
Micropore aeration pipe is set, is uninterruptedly aerated with air pump, uniform aeration makes dissolved oxygen amount be maintained at 3~4mg/L.It is prepared
Carbon Materials biomembrane can be hung up rapidly in 4~5 days, and the microbe species in film are more.
The starting of MBBR device and biofilm initial stage, waste water matched such as table 1 using simulation sanitary wastewater:
Table 1 simulates sanitary wastewater
The activated sludge for being derived from five Longkou treatment plant aerobic section of Zhengzhou is placed in level-one aerobic biologic membrane moving-bed biofilm
In reactor, activated sludge is carried out under conditions of influent COD=400mg/L or so and dissolved oxygen are maintained at 3~4mg/L tame and docile
Change.Biomembrane load is carried out to suspension active carbon material using dominant activity sludge.
Inoculation water is derived from Zhengzhou Wulongkou sewage treatment plant aerobic section.After biofilm is mature, it is useless to be directly used in practical antibiotic
The processing of water.The ingredient of antibiotic waste water is mainly quadracycline, the water quality parameter configured such as table 2:
2 antibiotic waste water water quality parameter of table
| TOC | COD(mg/L) | pH |
| 400~500 | 400~500 | 6~7 |
It is 8h in HRT, under conditions of 25~30 DEG C of reaction temperature, pH=5~7, to antibiotic in antibiotic micro-polluted water
Removal effect reach 85% or more.
Embodiment 2
The biofilm situation of different materials
Two kinds of carriers of cylindrical polyethylene plastics and suspension Constitutive active Carbon Materials are placed in to have tamed activated sludge good
Biomembrane load, situation such as Fig. 4 (cylindrical polyethylene plastics biofilm situation, wherein Fig. 4-1 after load 7 days are carried out in oxygen pond
For carrier before biofilm, Fig. 4-2 is carrier after biofilm), Fig. 5 (suspension pressed active carbon biofilm situation, wherein Fig. 5-1 is biofilm
Preceding carrier, Fig. 5-2 are carrier after biofilm) shown in.
As can be seen from the figure the biomembrane loading condition of suspension Constitutive active Carbon Materials is preferable, and surface obviously loads
One layer of biomembrane；Vinyon carrier surface can not visually observe biomembrane without large change.Main cause is suspension
Constitutive active Carbon Materials have more gap and attachment site more with biggish specific surface area, inside, are more advantageous to activity
Growth of the sludge in carrier surface.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of device for handling micropollutant water, which is characterized in that described device includes that concatenated level-one aerobic biologic membrane moves
Dynamic bed biofilm reactor and second level photochemical catalytic oxidation moving bed biofilm reactor；
The lower end of the level-one aerobic biologic membrane moving bed biofilm reactor is equipped with water inlet, and upper end is equipped with water outlet, internal
Equipped with micropore aeration pipe, inside is equipped with biofilm carrier；The biofilm carrier is the suspension Constitutive active that surface hangs with biomembrane
Charcoal ball；
The upper end of the second level photochemical catalytic oxidation moving bed biofilm reactor is equipped with water inlet, and lower end is equipped with water outlet, internal
Top is equipped with ultraviolet lamp, and inside is equipped with the carrier of loaded optic catalyst；The carrier of the loaded optic catalyst is load titanium dioxide
The suspension pressed active carbon ball of titanium catalyst.
2. the apparatus according to claim 1, which is characterized in that the level-one aerobic biologic membrane moving bed biofilm reactor
Water outlet be equipped with grid.
3. the apparatus according to claim 1, which is characterized in that the second level photochemical catalytic oxidation moving bed biofilm reactor
Water outlet be equipped with ultrafiltration membrane.
4. the apparatus according to claim 1, which is characterized in that the level-one aerobic biologic membrane moving bed biofilm reactor
In be equipped with blender.
5. the apparatus according to claim 1, which is characterized in that the second level photochemical catalytic oxidation moving bed biofilm reactor
Water intake mode include folded plate plug-flow water intake mode or mixed-flow water intake mode.
6. the apparatus according to claim 1, which is characterized in that the suspension movable forming of the catalyst for titanium dioxide loaded
The preparation method of property charcoal ball the following steps are included:
Suspension pressed active carbon ball is placed in nitrogen sulfur doping titanium dioxide catalyst colloid solution and impregnates 30min, after dry
1~1.5h is activated at 400~500 DEG C, obtains the suspension pressed active carbon ball of catalyst for titanium dioxide loaded.
7. the method based on any one of claim 1~6 described device processing micropollutant water, comprising the following steps:
Micro-polluted raw is passed through level-one aerobic biologic membrane moving bed biofilm reactor, it is good to control level-one by micropore aeration pipe
The dissolved oxygen of oxygen biomembrane moving bed biofilm reactor is 3~4mg/L, and the control hydrodynamic force residence time is 6~8h, is being reacted
Under conditions of 25~30 DEG C of temperature, pH=5~8, coagulation is carried out to micro-polluted raw；
Biofilm carrier dosage accounts for reactor volume 30~50% in the level-one aerobic biologic membrane moving bed biofilm reactor,
The load for accounting for the loaded optic catalyst of reactor volume 5~20% is added in second level photochemical catalytic oxidation moving bed biofilm reactor
Body.
8. the method according to the description of claim 7 is characterized in that the micro-polluted raw is by peristaltic pump, to be passed through level-one aerobic
Biomembrane moving bed biofilm reactor.
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| CN115259777A (en) * | 2022-08-02 | 2022-11-01 | 许昌学院 | Environment-friendly lightweight aggregate concrete and preparation method thereof |
| CN115321673A (en) * | 2022-10-13 | 2022-11-11 | 青岛万慧源环保科技有限公司 | Sludge-membrane symbiotic sewage treatment process technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115259777A (en) * | 2022-08-02 | 2022-11-01 | 许昌学院 | Environment-friendly lightweight aggregate concrete and preparation method thereof |
| CN115321673A (en) * | 2022-10-13 | 2022-11-11 | 青岛万慧源环保科技有限公司 | Sludge-membrane symbiotic sewage treatment process technology |
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