CN110386723A - A kind of sewage autotrophy processing system and method based on MBBR and Magneto separate - Google Patents

A kind of sewage autotrophy processing system and method based on MBBR and Magneto separate Download PDF

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Publication number
CN110386723A
CN110386723A CN201910652542.XA CN201910652542A CN110386723A CN 110386723 A CN110386723 A CN 110386723A CN 201910652542 A CN201910652542 A CN 201910652542A CN 110386723 A CN110386723 A CN 110386723A
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pond
mouth
river
magnetic
autotrophic denitrification
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CN110386723B (en
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吴迪
殷建文
郑临奥
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Qingdao Si Purun Water Treatment Limited-Liability Co
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Qingdao Si Purun Water Treatment Limited-Liability Co
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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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/14—NH3-N
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/16—Total nitrogen (tkN-N)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • 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
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/308—Biological phosphorus removal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The invention discloses a kind of sewage autotrophy processing system and method based on MBBR and Magneto separate, are related to the dirty water decontamination handles field.Including reactor, reactor is handled sewage in such a way that MBBR is combined with Magneto separate precipitating the two, which includes the anaerobic pond being sequentially communicated, anoxic pond, aerobic decarburization pond, secondary settling tank, the first autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification pond, degassing pond, dosing mixing pit, magnetic kind load pond, flocculation tank and final deposition pool；It further include magnetic powder separator and magnetic powder recovering device, the sludge out pipe of magnetic powder separator and final deposition pool connects, and magnetic powder recovering device is connect with magnetic powder separator, magnetic kind load pond respectively, and nitrification liquid return pipe is connected between aerobic nitrification pond and anoxic pond.The present invention realizes pollutant all referring to mark efficient process, effluent quality index up to class Table IV class water quality standard by combining both MBBR and magnetic separation technique.

Description

A kind of sewage autotrophy processing system and method based on MBBR and Magneto separate
Technical field
The present invention relates to the dirty water decontamination handles fields, and in particular to a kind of based on the processing of the sewage autotrophy of MBBR and Magneto separate System and method for.
Background technique
As the continuous of national environmental protection policy requirements was implemented in recent years, to accomplish fluently clear water defended war, quality of water environment is pushed Lasting to improve, various regions watershed and local sewage drainage standard are further stringent.Under maximum discharge standard requirements, change traditional wastewater High energy consumption, high resource consumption disadvantage are handled, seeks a kind of stably reaching standard, efficient low-consume, land occupation save, the simple sewage of operation and maintenance Treatment process is the important development direction in the dirty water decontamination handles field.
Sewage whole process processing system in the prior art mainly includes MBR, MBBR etc., the related research report of the prior art Mainly have:
CN106630393A discloses a kind of unattended IFAS or MBBR integrated equipment for sewage treatment and system, packet Closed reactive tank, aerator and device for removing phosphorous by electrolysis are included, reactive tank is successively divided into biochemical reaction from side to the other side Pond, sedimentation basin are filled with suspending carrier in biochemical reaction tank, and sewage enters from the water inlet being arranged on biochemical reaction tank, It is connected between biochemical reaction tank and sedimentation basin and between sedimentation basin and filtering ponds, the water inlet pipe and precipitating of device for removing phosphorous by electrolysis Pond connection, outlet pipe is connected to biochemical reaction tank, and biochemical reaction tank is divided into anaerobic pond, anoxic room, aerobic tank, to TN remove according to Lai Yu reflux is unable to reach 80% or more nitrogen removal rate, while using device for removing phosphorous by electrolysis, sludge yield and consumption of electrode Amount is big, and operating cost is high.
CN207259318U discloses a kind of integrated rural sewage disposal device, including tank body and below tank body Mud room, wherein tank body includes from coarse rack room, fine fack room, MBR film process room and the oxidation successively separated from inside to outside Coarse rack room is wrapped up in room, fine fack room, and fine fack room is wrapped up in MBR film process room, and the indoor sewage of fine fack is via the first overflow In mouth overflow to MBR film process room, oxidizing chamber wraps up MBR film process room, and the indoor sewage of MBR film process is via the second overflow port Overflow is to oxidizing chamber, the first mud discharging mouth of fine fack room bottom, the second mud discharging mouth and oxidizing chamber of MBR film process room bottom The third mud discharging mouth of bottom leads to mud room.Setting suspension carrier in anoxic pond and aerobic tank, is separated by solid-liquid separation and uses MBR, first It is short in the presence of suspension carrier service life, it needs to regularly replace, and replace complicated problem, secondly uses MBR, investment and operating cost Height, and easily blocking, cause equipment to be unable to operate normally, and overhaul difficult.
CN206901993U discloses a kind of integration MBBR sewage disposal device, including sequentially connected anaerobic pond, lacks Oxygen pond aerobic tank and sedimentation basin, however, the not set advanced treatment unit of equipment, sedimentation basin is discharged direct emission, and effluent index is outstanding Its TP, SS are unable to reach level-one A standard.
CN109553196A discloses a kind of anaerobic-aerobic multiple-hearth biofilm reactor and its technique, including reactor Tank body, reactor tank body are embedded in backfill, and the bottom of reactor tank body is provided with fine sand basal layer and concrete foundation Layer, the inside of reactor tank body, which divides, anoxic zone, anaerobic zone, aerobic zone, settling zone and filtering sterile zones, and mating is provided with Aerating system and electric-control system, the MBBR biological suspension that different proportion quantity is added in anoxic zone, anaerobic zone, aerobic zone are filled out Material, pure film MBBR technique is low to colloid in raw water and particle utilization of carbon source, and carbon source deficiency causes biological carbon and phosphorous removal limited, pure film Process requirement secondary settling tank needs timing to backwash, influences technique continuous and steady operation using filter tank as advanced treating.
CN106348528A discloses a kind of magnetic load precipitating and biological aerated filter compound sewage processing system, including magnetic Precipitation unit and biological aerated filter unit are loaded, its working principle is that dosing tank and magnetic separator are respectively to magnetic-coagulation reactor Middle addition coagulant, flocculant and magnetic powder, treatment sewage is entered in magnetic-coagulation reactor by water inlet takes off steady flocculation, then Into first treated is completed in inclined-tube sedimentation tank, most of phosphorus, suspended matter and partial organic substances are removed, subsequently enter aeration life Object filter tank removes ammonia nitrogen and partial organic substances, to realize the secondary treatment of sewage.System design is not in view of removing total nitrogen It removes, does not meet existing discharge standard requirement.
Biochemical treatment is carried out using activated sludge process merely, is difficult to reach in the rough sledding such as water inlet impact and winter low temperature Mark discharge, system loading is low to be taken up a large area；MBR technique membrane module needs timing on-line cleaning, periodically backwash, and there are costs It is high, energy consumption is high, the disadvantages of needing special messenger to safeguard, be badly in need of improving；MBBR technique needs mating advanced treatment process such as efficient sedimentation tank, filter Pond has process flow long, the disadvantages of taking up a large area, is unfavorable for the highly integrated property of technique.
To improve quality of water environment, realizes that stable water outlet is up to standard and equipment high efficiency low consumption simple operation, be badly in need of to existing dirt Water whole process processing system improves.
Summary of the invention
Based on above-mentioned defect existing in the prior art, the present invention provides a kind of sewage based on MBBR and Magneto separate certainly Support processing system and method, it can be ensured that the core index of sewage is up to standard all referring to marking.
One of task of the invention is to provide a kind of sewage autotrophy processing system based on MBBR and Magneto separate, use Following technical scheme:
A kind of sewage autotrophy processing system based on MBBR and Magneto separate comprising reactor, the reactor pass through The mode that MBBR is combined with Magneto separate precipitating the two handles sewage, and the reactor includes the anaerobism being sequentially communicated Pond, anoxic pond, aerobic decarburization pond, secondary settling tank, the first autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification pond, degassing pond, Dosing mixing pit, magnetic kind load pond, flocculation tank and final deposition pool；
It further include magnetic powder separator and magnetic powder recovering device, the magnetic powder separator goes out with the final deposition pool The connection of mud pipe, the magnetic powder recovering device are connect with magnetic powder separator, magnetic kind load pond respectively；
It is thrown in the anaerobic pond, anoxic pond, the first autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification pond Added with suspending carrier；
It is special that suspending carrier is provided in the anaerobic pond, anoxic pond, the first autotrophic denitrification pond, the second autotrophic denitrification pond First blender；First autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification are provided with perforated pipe aerating regulation in pond Device；The aerobic decarburization pond is provided with micro-hole aerator；The dosing mixing pit, magnetic kind load pond, in flocculation tank successively It is provided with the second blender, third blender, the 4th blender；
The anaerobic pond is connected with water inlet pipe, and the final deposition pool is connected with outlet pipe；
The secondary settling tank is connected with MBBR mud discharging pipe, and the final deposition pool is also connected with Magneto separate mud discharging pipe；
It is connected with nitrification liquid return pipe between the aerobic nitrification pond and anoxic pond, one end conduct positioned at aerobic nitrification pond Water inlet, one end positioned at anoxic pond is as water outlet；Sludge is connected between the secondary settling tank and the anaerobic pond to return Flow tube, positioned at one end of secondary settling tank as mud inlet end, one end positioned at anaerobic pond is as mud outlet end；The MBBR mud discharging Pipe and the mud return line common sparing pipeline.
As a preferred solution of the present invention, separated between adjacent pond body by partition, on above-mentioned partition Be provided with the adjacent pond body connection of holding crosses the mouth of a river, and the anaerobic pond on the spacing board including being located at anaerobic pond and anoxic pond crosses water Mouth, the anoxic pond on the spacing board in anoxic pond and aerobic decarburization pond cross the mouth of a river, between aerobic decarburization pond and secondary settling tank The mouth of a river is crossed in aerobic decarburization pond on partition, the secondary settling tank on the spacing board in secondary settling tank and the first autotrophic denitrification pond crosses the mouth of a river, It crosses the mouth of a river, be located at second certainly in the first autotrophic denitrification pond on the spacing board in the first autotrophic denitrification pond and the second autotrophic denitrification pond The mouth of a river is crossed in the second autotrophic denitrification pond supported on the spacing board in denitrification tank and aerobic nitrification pond, be located at aerobic nitrification pond and degassing pond it Aerobic nitrification pond on spacing board crosses the mouth of a river, the degassing pond on the spacing board of degassing pond and dosing mixing pit and crosses the mouth of a river, position The mouth of a river is crossed in the dosing mixing pit on the spacing board in dosing mixing pit and magnetic kind load pond, is located at magnetic kind load pond and flocculation reaction The mouth of a river and the flocculation tank on the spacing board of flocculation tank and final deposition pool are crossed in magnetic kind load pond on the spacing board in pond Cross the mouth of a river.
As another preferred embodiment of the invention, the front at the mouth of a river, above-mentioned anoxic pond mistake are crossed in above-mentioned anaerobic pond The front at the mouth of a river is crossed in the front at the mouth of a river, the first above-mentioned autotrophic denitrification pond, the front at the mouth of a river is crossed in the second above-mentioned autotrophic denitrification pond It is provided with the first interception sieve, above-mentioned first intercepts sieve as flat screen, and the upper edge of the first above-mentioned interception sieve exists 30cm below operating water level, lower edge are higher than the half of operating water level, above-mentioned operating water level, the lower edge with above-mentioned outlet pipe Mounting height is identical.
Further, it is crossed in front of the mouth of a river in above-mentioned aerobic nitrification pond and is provided with the second interception sieve, above-mentioned second Interception sieve is roller sieve, and above-mentioned second intercepts the upper edge of sieve in operating water level 65% hereinafter, lower edge is higher than operation The 35% of water level, above-mentioned operating water level are lower identical along mounting height with above-mentioned outlet pipe.
Further, it is connected between above-mentioned magnetic powder separator and above-mentioned magnetic powder recovering device by enters mud pipe, on It is connected between the magnetic powder recovering device stated and above-mentioned magnetic kind load pond by magnetic kind return pipe.
Further, above-mentioned suspending vehicle density is 0.95-1.04g/cm3, voidage > 90%；In anaerobic pond Suspending vehicle density be 0.95-0.97g/cm3, the suspending vehicle density in anoxic pond be 1.02-1.04g/cm3, suspending carrier Effective ratio area is 300-620m2/m3；Suspension positioned at the first autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification pond Support density is 0.97-0.99g/cm3, suspending carrier effective ratio area is 620-1200m2/m3。
Further, the opening direction of above-mentioned perforated pipe aerating regulation device downward, hatch bore diameter 4-6mm, mounting height position In the above 30cm of bottom of pond.
Further, the mouth of a river is crossed in above-mentioned aerobic decarburization pond, secondary settling tank crosses the mouth of a river, dosing mixing pit crosses the mouth of a river, flocculation is anti- Answer pond to cross the upper edge at the mouth of a river 30cm below operating water level, above-mentioned degassing pond cross on the mouth of a river along operating water level 80% with Under, lower edge is higher than the 50% of operating water level, and the bottom of pond of mouth of a river lower edge and above-mentioned magnetic kind load pond is crossed in above-mentioned magnetic kind load pond Maintain an equal level.
Another task of the invention is to provide a kind of sewage autotrophy processing method based on MBBR and Magneto separate, use Above-mentioned processing system comprising following steps:
A, treatment sewage initially enters anaerobic pond, and the activated sludge of secondary settling tank reflux is detested using dirty Organic substance in water Oxygen releases phosphorus, hydrolysis of the microorganism completion of apposition growth to carbon source in water on suspending carrier, high-quality in the sewage that increased sharply The concentration of quick carbon source such as volatile fatty acid；
B, anaerobic pond water outlet enters anoxic pond, and the denitrifying bacteria by apposition growth on activated sludge and suspending carrier is complete The nitrate removal that reflux nitrification liquid carries in pairs, while consuming raw water partial organic substances；
C, anoxic pond water outlet enters aerobic decarburization pond, completes going for raw water organic matter by the heterotroph in activated sludge It removes；
D, aerobic decarburization pond water outlet enters secondary settling tank, completes mud-water separation, the sludge after sedimentation is returned by mud return line It is flow to anaerobic pond, excess sludge is discharged by MBBR mud discharging pipe, secondary clarifier effluent COD < 50mg/L, SS < 100mg/L, with Water inlet is compared, and secondary clarifier effluent ammonium oxidation rate is less than 10%；
E, secondary clarifier effluent enters the first autotrophic denitrification pond, by the nitrite bacteria of apposition growth on suspending carrier and detests Anaerobic ammonium oxidation bacterium carries out short distance nitration and Anammox reaction respectively, completes the part removal of total nitrogen；
F, the first autotrophic denitrification pond water outlet enters the second autotrophic denitrification pond, passes through the nitrosation of apposition growth on suspending carrier Bacterium and anaerobic ammonium oxidizing bacteria carry out short distance nitration and Anammox reaction respectively, complete the further removal of total nitrogen；
G, the second autotrophic denitrification pond water outlet enters aerobic nitrification pond, and the nitrobacteria by apposition growth on suspending carrier is complete At the removal of remaining ammonia nitrogen；
H, the water outlet of aerobic nitrification pond enters degassing pond, reduces the DO of carrying, and be back to anoxic by nitrification liquid return pipe Pond,
I, the water outlet of degassing pond is successively by dosing mixing pit, magnetic kind load pond and flocculation tank, by the magnetic Kind load pond and flocculation tank add magnetic kind and flocculant respectively, are condensed into particulate form and colloidal organic substrate in sewage Using magnetic kind as the floc sedimentation of " core "；
J, flocculation tank water outlet enters final deposition pool completion mud-water separation, and supernatant reaches the discharge standard of sewage, by end The outlet pipe discharge in heavy pond；
K, final deposition pool bottom magnetic floc sedimentation enters magnetic powder separator, is broken up magnetic floc sedimentation by shearing force, forms magnetic Powder-wadding body mixed liquor；
L, magnetic powder separator goes out water mixed liquid and enters magnetic powder recovering device, completed under magnetic fields the recycling of magnetic powder with The separation of non magnetic wadding body, the magnetic powder of recycling are back to magnetic kind load pond and realize that magnetic kind recycles, and excess sludge passes through magnetic point It is discharged from mud discharging pipe.
Preferably, above-mentioned anaerobic pond, anoxic pond, the sludge concentration in aerobic decarburization pond are 1500-3000mg/L；It is active dirty Mud system sludge age < 6d；The suspending carrier filling rate of anaerobic pond is in 10-50%, ORP < -200mV；The suspending carrier of anoxic pond is filled out Rate is filled in 10-50%, DO < 0.4mg/L；In 30-66%, film surface load exists first autotrophic denitrification pond suspending carrier filling rate 1.5-3.0gN/m2D, DO 1.5-2.5mg/L；For second autotrophic denitrification pond suspending carrier filling rate in 30-66%, film surface is negative Lotus is in 0.5-1.5gN/m2D, DO 0.5-1.5mg/L；For aerobic nitrification pond suspending carrier filling rate in 30-66%, film surface is negative Lotus is in 0.8-1.5gN/m2D, DO 2-4mg/L；Anaerobic pond hydraulic detention time is in 45-90min, when the tank waterpower that deaerates stops Between in 10-20min；Secondary settling tank surface loading is in 1.2-1.5m3/m2·h；It is first autotrophic denitrification pond, the second autotrophic denitrification pond, good Oxygen nitrification tank sludge concentration < 500mg/L；The hydraulic detention time of dosing mixing pit is 1.5-2min, and magnetic kind loads the waterpower in pond Residence time is 1.5-2min, and the hydraulic detention time of flocculation tank is 2-3min, and the residence time of final deposition pool is 20- 30min, surface loading 15-30m3/m2·h。
A kind of working principle of the sewage autotrophy processing system based on MBBR and Magneto separate of the present invention are as follows:
Using the compound MBBR process activity sludge of mud film for raw water utilization of carbon source rate height, organic matter high treating effect, outstanding Float carrier strengthens the advantages of carbon source hydrolysis and processing load, realizes biological phosphate-eliminating, denitrifying reinforcing by ultrashort sludge age and has The depth of machine object removes；CANON technique is loaded using pure film MBBR technique, can be realized at the high load capacity of total nitrogen without carbon source Reason；It is high using Magneto separate load, the characteristics of water inlet SS can be born to 500mg/L, it can be increase accordingly secondary settling tank surface loading, simultaneously Magneto separate sedimentation basin load is much higher than efficient sedimentation tank, and Magneto separate realizes the stably reaching standard of SS and TP, is not necessarily to subsequent filter tank, reduces Land occupation.
Compared with prior art, present invention offers following advantageous effects:
1) high treating effect: system is discharged ammonia nitrogen < 1.5mg/L, TN < 5mg/L, TP < 0.1mg/L, and SS < 6mg/L is much higher than Level-one A standard can stably reach quasi- IV class standard；
2) enhanced biological phosphorus removal: mud membrane compound technology system SRT < 6d, ultrashort sludge age substantially enhanced biological phosphorus removal effect, Biological phosphorus removal > 90%；
3) operating cost is low: anaerobic pond adds the filler-reinforced raw water carbon source hydrolysis of suspending carrier, increases high-quality quick carbon source Concentration, strengthening biological carbon and phosphorous removal；CANON technique denitrogenation is not necessarily to organic carbon source, and it is zero that carbon source, which adds expense, biological phosphorus removal Height, added amount of chemical needed for Magneto separate is small, and medicament service efficiency is high, comprehensive to reduce added amount of chemical 30-70%, the magnetic powder rate of recovery Rate is more than 99.5%；
4) load is high, takes up an area province: equipment adds living polymer suspending carrier, and the elimination capacity of pollutant is traditional activated 2-3 times of sludge, magnetic kind add reinforcing floc settling velocity, and surface loading is efficient sedimentation tank 2 times or more；The pure membrane process of MBBR Without traditional secondary settling tank, Magneto separate is not necessarily to subsequent filter tank；50% land occupation can be reduced compared to traditional technology on the whole；
5) capacity of resisting impact load is strong: whether MBBR or Magneto separate can bear Design cooling load 100- in the short time 200% water quality and water impact；
6) operation and maintenance are simple: the compound MBBR process operation of mud film is simple；The pure membrane process of MBBR, no setting is required, and sludge returns Stream, backwash, sludge yield are low；Suspending carrier, perforated pipe aerating regulation, to intercept sieve service life be more than 15 years, without damaged aging, It runs non-maintaining, can be widely used for sewage treatment plant stand or integration apparatus.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawing:
Fig. 1 is the sewage autotrophy processing system front elevation view based on MBBR and Magneto separate.
In figure: Z1- anaerobic pond, Z2- anoxic pond, the aerobic decarburization pond Z3-, Z4- secondary settling tank, the first autotrophic denitrification of Z5- pond, The second autotrophic denitrification of Z6- pond, Z7- aerobic nitrification pond, Z8- degassing pond, Z9- dosing mixing pit, Z10- magnetic kind load pond, Z11- wadding Solidifying reaction tank；Z12- final deposition pool；P1- water inlet pipe, P2- mud return line, P3- nitrification liquid return pipe, P4- outlet pipe, P5- mud extraction Pipe, P6- enters mud pipe, P7- magnetic kind return pipe, P8- Magneto separate mud discharging pipe, P9-MBBR mud discharging pipe；S1- suspending carrier, S2- perforated pipe aerating regulation device, the first blender of S3-, the interception sieve of S4- first, the interception sieve of S5- second, S6- micro-hole aerator, The second blender of S7-, S8- third blender, the 4th blender of S9-；M1- magnetic powder separator, M2- magnetic powder recovering device；W1- Anaerobic pond crosses the mouth of a river, and W2- anoxic pond crosses the mouth of a river, and W3- crosses in aerobic decarburization pond the mouth of a river, and W4- secondary settling tank crosses the mouth of a river, the first autotrophy of W5- Denitrification tank crosses the mouth of a river, and the mouth of a river is crossed in the second autotrophic denitrification of W6- pond, and the mouth of a river is crossed in W7- aerobic nitrification pond, and the mouth of a river, W9- are crossed in W8- degassing pond Dosing mixing pit crosses the mouth of a river, and the mouth of a river is crossed in W10- magnetic kind load pond, and W11- flocculation tank crosses the mouth of a river.
Specific embodiment
The invention proposes a kind of sewage autotrophy processing system and method based on MBBR and Magneto separate, in order to make the present invention The advantages of, technical solution it is clearer, clear, below with reference to specific embodiment, the present invention is described in more detail.
As shown in Figure 1, a kind of sewage autotrophy processing system and method based on MBBR and Magneto separate of the present invention, can solve existing There is the problems such as technical treatment effect is unstable, operating cost is high, the excessive inconvenience of equipment is safeguarded.
The present invention is based on the sewage autotrophy processing systems of MBBR and Magneto separate comprising reactor, reactor pass through MBBR The mode combined with Magneto separate precipitating the two handles sewage, which includes more pond bodies, preferably from left to right successively For anaerobic pond Z1, anoxic pond Z2, aerobic decarburization pond Z3, secondary settling tank Z4, the first autotrophic denitrification pond Z5, the second autotrophic denitrification pond Z6, Aerobic nitrification pond Z7, degassing pond Z8, dosing mixing pit Z9, magnetic kind load pond Z10, flocculation tank Z11 and final deposition pool Z12；This It outside further include relevant process pipeline, technique pipe fitting and suspending carrier S1；
Above-mentioned process pipeline includes water inlet pipe P1, mud return line P2, nitrification liquid return pipe P3, outlet pipe P4, sludge out pipe P5, enters mud pipe P6, magnetic kind return pipe P7, Magneto separate mud discharging pipe P8, MBBR mud discharging pipe P9；
Above-mentioned technique pipe fitting includes perforated pipe aerating regulation device S2, the first blender S3, the first interception sieve S4, the second interception sieve Net S5, micro-hole aerator S6, the second blender S7, third blender S8, the 4th blender S9, magnetic powder separator M1 and magnetic powder Recyclable device M2；
Suspending carrier is provided in anaerobic pond Z1, anoxic pond Z2, the first autotrophic denitrification pond Z5, the second pond autotrophic denitrification Z6 Dedicated first blender S3；First autotrophic denitrification pond Z5, the second autotrophic denitrification pond Z6, perforation is provided in the Z7 of aerobic nitrification pond Pipe aerator S2；Micro-hole aerator S6 is provided in aerobic decarburization pond Z3；Dosing mixing pit Z9, magnetic kind load pond Z10, flocculation are anti- It answers and sets gradually the second blender S7, third blender S8, the 4th blender S9 in the Z11 of pond；
Anaerobic pond Z1 is connected with water inlet pipe P1, and final deposition pool Z12 is connected with outlet pipe P4；Secondary settling tank Z5 is connected with MBBR sludge Delivery pipe P9, final deposition pool Z12 are also connected with Magneto separate mud discharging pipe P8；It is connected between aerobic nitrification pond Z3 and anoxic pond Z2 Nitrification liquid return pipe P3, positioned at one end of aerobic nitrification pond Z7 as water inlet, one end positioned at anoxic pond Z2 is as water outlet； Mud return line P2 is connected between secondary settling tank Z4 and anaerobic pond Z1, positioned at one end of secondary settling tank Z4 as mud inlet end, positioned at detesting One end of oxygen pond Z1 is as mud outlet end；MBBR mud discharging pipe P9 and mud return line P2 common sparing pipeline.
Separated between adjacent pond body by partition, the mistake for keeping adjacent pond body connection is provided on above-mentioned partition The mouth of a river, including positioned at anaerobic pond Z1 and anoxic pond Z2 spacing board on anaerobic pond cross mouth of a river W1, positioned at anoxic pond Z2 with it is aerobic Anoxic pond on the spacing board of decarburization pond Z3 crosses mouth of a river W2, aerobic on the spacing board of aerobic decarburization pond Z3 and secondary settling tank Z4 Mouth of a river W3 is crossed in decarburization pond, the secondary settling tank on the spacing board of secondary settling tank Z4 and the first autotrophic denitrification pond Z5 is crossed mouth of a river W4, is located at It crosses mouth of a river W5, be located at second in the first autotrophic denitrification pond on the spacing board of first autotrophic denitrification pond Z5 and the second autotrophic denitrification pond Z6 Mouth of a river W6 is crossed in the second autotrophic denitrification pond on the spacing board of autotrophic denitrification pond Z6 and aerobic nitrification pond Z7, is located at aerobic nitrification pond Z7 Mouth of a river W7 is crossed with the aerobic nitrification pond on the spacing board of degassing pond Z8, is located on the spacing board of degassing pond Z8 and dosing mixing pit Z9 Degassing pond cross mouth of a river W8, positioned at dosing mixing pit Z9 and magnetic kind load pond Z10 spacing board on dosing mixing pit cross the mouth of a river W9, the magnetic kind load pond on the spacing board of magnetic kind load pond Z10 and flocculation tank Z11 cross mouth of a river W10 and are located at flocculation Flocculation tank on the spacing board of reaction tank Z11 and final deposition pool Z12 crosses mouth of a river W11.
The present invention is preferably anaerobic pond crosses the front at the mouth of a river, anoxic pond crosses the front at the mouth of a river, water is crossed in the first autotrophic denitrification pond Front, the second autotrophic denitrification pond of mouth are crossed in front of the mouth of a river and are respectively provided with the first interception sieve, and the first interception sieve is flat screen, The upper edge of first interception sieve 30cm below operating water level, half of the lower edge higher than operating water level, above-mentioned operating water level, It is lower identical along mounting height as above-mentioned outlet pipe.
It is provided with the second interception sieve it is preferred that crossing in front of the mouth of a river in aerobic nitrification pond, second intercepts sieve as rotary screen Net, second intercept sieve upper edge operating water level 65% hereinafter, lower edge be higher than operating water level 35%, operating water level, It is lower identical along mounting height as above-mentioned outlet pipe.
It is connected between magnetic powder separator and magnetic powder recovering device by enters mud pipe, magnetic powder recovering device and magnetic kind load pond Between by magnetic kind return pipe connect.
The present invention preferably deaerates, and bottom of pond is non-planar 20 ° of gradients.
The preferred suspending vehicle density of the present invention is 0.95-1.04g/cm3, voidage > 90%；It is outstanding in anaerobic pond Float carrier density is 0.95-0.97g/cm3, the suspending vehicle density in anoxic pond be 1.02-1.04g/cm3, suspending carrier is effective Specific surface area is 300-620m2/m3；Suspending carrier positioned at the first autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification pond Density is 0.97-0.99g/cm3, suspending carrier effective ratio area is 620-1200m2/m3。
Downward, hatch bore diameter 4-6mm, mounting height is located at bottom of pond to the opening direction of the preferred perforated pipe aerating regulation device of the present invention The above 30cm.
The present invention crosses the mouth of a river in preferably aerobic decarburization pond, secondary settling tank crosses the mouth of a river, dosing mixing pit crosses the mouth of a river, flocculation tank mistake The upper edge at mouth of a river 30cm below operating water level, degassing pond cross on the mouth of a river along operating water level 80% hereinafter, lower edge be higher than fortune The 50% of row water level, mouth of a river lower edge is crossed in magnetic kind load pond and the bottom of pond in above-mentioned magnetic kind load pond maintains an equal level.
The preferred anaerobic pond of the present invention, anoxic pond, the sludge concentration in aerobic decarburization pond are 1500-3000mg/L；It is active dirty Mud system sludge age < 6d；The suspending carrier filling rate of anaerobic pond is in 10-50%, ORP < -200mV；The suspending carrier of anoxic pond is filled out Rate is filled in 10-50%, DO < 0.4mg/L；In 30-66%, film surface load exists first autotrophic denitrification pond suspending carrier filling rate 1.5-3.0gN/m2D, DO 1.5-2.5mg/L；For second autotrophic denitrification pond suspending carrier filling rate in 30-66%, film surface is negative Lotus is in 0.5-1.5gN/m2D, DO 0.5-1.5mg/L；For aerobic nitrification pond suspending carrier filling rate in 30-66%, film surface is negative Lotus is in 0.8-1.5gN/m2D, DO 2-4mg/L；Anaerobic pond hydraulic detention time is in 45-90min, when the tank waterpower that deaerates stops Between in 10-20min；Secondary settling tank surface loading is in 1.2-1.5m3/m2·h；It is first autotrophic denitrification pond, the second autotrophic denitrification pond, good Oxygen nitrification tank sludge concentration < 500mg/L；The hydraulic detention time of dosing mixing pit is 1.5-2min, and magnetic kind loads the waterpower in pond Residence time is 1.5-2min, and the hydraulic detention time of flocculation tank is 2-3min, and the residence time of final deposition pool is 20- 30min, surface loading 15-30m3/m2·h。
Above-mentioned suspending vehicle density is 0.95-1.04g/cm3, voidage > 90%；Suspension in anaerobic pond carries Volume density is 0.95-0.97g/cm3, the suspending vehicle density in anoxic pond be 1.02-1.04g/cm3, suspending carrier effective ratio table Area is 300-620m2/m3；Suspending vehicle density positioned at the first autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification pond For 0.97-0.99g/cm3, suspending carrier effective ratio area is 620-1200m2/m3。
The present invention selects the suspending carrier of different densities and effective ratio area, and the suspending vehicle density in anaerobic pond is 0.95-0.97g/cm3, for the microorganism of attachment based on heterotroph, biomass is relatively large, selects the suspension of relatively low density Carrier, close to water filler fluidisation can be realized by stirring, the suspending carrier in anoxic pond in total body density after microorganism colonization Density is 1.02-1.04g/cm3, it is slightly larger than water, avoids denitrification from generating nitrogen and push filler floating accumulation, it is organic to detest anoxic zone Object is sufficient, and biomembrane is thicker, effective ratio area 300-620m2/m3Suspending carrier inside water passage it is relatively wide, can protect Hinder biomembrane good mass-transfer；First autotrophic denitrification pond, the second autotrophic denitrification pond, the suspending carrier in aerobic nitrification pond are mainly enriched with Autotrophic bacteria, biomass is relatively fewer, therefore selects density for 0.97-0.99g/cm3Suspending carrier filler, it is whole close after biofilm Carrier fluidisation only can be realized by being aerated disturbance equally close to water in degree；Nitrobacteria, anaerobic ammonium oxidizing bacteria slow growth, Biomembrane is relatively thin, runner relative narrower may be selected on the basis of ensureing biomembrane good mass-transfer, effective ratio area is more Big 620-1200m2/m3Suspending carrier filler.
Using the compound MBBR process activity sludge of mud film for raw water utilization of carbon source rate height, organic matter high treating effect, outstanding Float carrier strengthens the advantages of carbon source hydrolysis and processing load, realizes biological phosphate-eliminating, denitrifying reinforcing by ultrashort sludge age and has The depth of machine object removes；CANON technique is loaded using pure film MBBR technique, can be realized at the high load capacity of total nitrogen without carbon source Reason；It is high using Magneto separate load, the characteristics of water inlet SS can be born to 500mg/L, it can be increase accordingly secondary settling tank surface loading, simultaneously Magneto separate sedimentation basin load is much higher than efficient sedimentation tank, and Magneto separate realizes the stably reaching standard of SS and TP, is not necessarily to subsequent filter tank, reduces Land occupation.Above-mentioned MBBR mud form membrane refers to that biological section is total by the biomembrane on activated sludge and suspending carrier to the removal of pollutant With what is completed, sludge reflux is arranged in 1500-3000mg/L, technique in sludge concentration in reactor.
The above-mentioned pure form membrane of MBBR refers to what biological section completed the removal of pollutant by the biomembrane on suspending carrier, instead Sludge concentration in device is answered to be less than 500mg/L, and active material is mainly the biomembrane to fall off in sludge, technique is not provided with sludge and returns Stream.
The voidage of above-mentioned suspending carrier refers to the voidage of unit suspending carrier percentage of the total volume.
The effective ratio area of above-mentioned suspending carrier refers to that unit volume suspending carrier is able to achieve good mass-transfer and passes oxygen, and can give birth to The shielded surface area of long effective microbe.
The filling rate of above-mentioned suspending carrier refers to that suspending carrier volume accounts for the ratio of added reaction tank pool capacity.
The film surface load of above-mentioned suspending carrier refers to the amount of pollutant that the effective biomembrane area of unit removes daily, with ammonia nitrogen Meter, gN/m2/d。
Above-mentioned magnetic powder separator refers to the shearing force generated by high speed rotation in floc sedimentation, make magnetic powder in floc sedimentation and The device of excess sludge solution wadding.
Above-mentioned magnetic powder recovering device refers to by realizing that magnetic powder recycles the device separated with namagnetic substance under magnetic fields.
For known to industry professional, it is standard device that magnetic powder separator, which can be high-shearing dispersion emulsifying machine,；Magnetic Powder reclaiming device is magnetic separator, is standard device, according to magnetic powder and flooded condition reasonable selection.
When above-mentioned reactor can be body structure, for example body structure, main material can be stainless steel, carbon steel, glass The various materials such as glass steel or engineering plastics, those skilled in the art can voluntarily select according to requirements.
Known to personage for the industry, each region pool capacity of system, suspending carrier dosage are according to water, water quality and place Reason standard determines；Mixed liquid recycle ratio, return sludge ratio, aerobic tank DO meet basic demand of the system to sewage treatment；Water temperature Meet the basic demand of CANON technique.
In the base for the structure and innovative point for having understood a kind of above-mentioned sewage autotrophy processing system based on MBBR and Magneto separate On plinth, elaborate to its working method.
A kind of sewage autotrophy processing method based on MBBR and Magneto separate, comprising the following steps:
A, treatment sewage initially enters anaerobic pond, and the activated sludge of secondary settling tank reflux is detested using dirty Organic substance in water Oxygen releases phosphorus, hydrolysis of the microorganism completion of apposition growth to carbon source in water on suspending carrier, high-quality in the sewage that increased sharply The concentration of quick carbon source such as volatile fatty acid；
B, anaerobic pond water outlet enters anoxic pond, and the denitrifying bacteria by apposition growth on activated sludge and suspending carrier is complete The nitrate removal that reflux nitrification liquid carries in pairs, while consuming raw water partial organic substances；
C, anoxic pond water outlet enters aerobic decarburization pond, completes going for raw water organic matter by the heterotroph in activated sludge It removes；
D, aerobic decarburization pond water outlet enters secondary settling tank, completes mud-water separation, the sludge after sedimentation is returned by mud return line It is flow to anaerobic pond, excess sludge is discharged by MBBR mud discharging pipe, secondary clarifier effluent COD < 50mg/L, SS < 100mg/L, with Water inlet is compared, and secondary clarifier effluent ammonium oxidation rate is less than 10%；
E, secondary clarifier effluent enters the first autotrophic denitrification pond, by the nitrite bacteria of apposition growth on suspending carrier and detests Anaerobic ammonium oxidation bacterium carries out short distance nitration and Anammox reaction respectively, completes the part removal of total nitrogen；
F, the first autotrophic denitrification pond water outlet enters the second autotrophic denitrification pond, passes through the nitrosation of apposition growth on suspending carrier Bacterium and anaerobic ammonium oxidizing bacteria carry out short distance nitration and Anammox reaction respectively, complete the further removal of total nitrogen；
G, the second autotrophic denitrification pond water outlet enters aerobic nitrification pond, and the nitrobacteria by apposition growth on suspending carrier is complete At the removal of remaining ammonia nitrogen；
H, the water outlet of aerobic nitrification pond enters degassing pond, reduces the DO of carrying, and be back to anoxic by nitrification liquid return pipe Pond,
I, the water outlet of degassing pond is successively by dosing mixing pit, magnetic kind load pond and flocculation tank, by above-mentioned magnetic Kind load pond and flocculation tank add magnetic kind and flocculant respectively, are condensed into particulate form and colloidal organic substrate in sewage Using magnetic kind as the floc sedimentation of " core "；
J, flocculation tank water outlet enters final deposition pool completion mud-water separation, and supernatant reaches the discharge standard of sewage, by end The outlet pipe discharge in heavy pond；
K, final deposition pool bottom magnetic floc sedimentation enters magnetic powder separator, is broken up magnetic floc sedimentation by shearing force, forms magnetic Powder-wadding body mixed liquor；
L, magnetic powder separator goes out water mixed liquid and enters magnetic powder recovering device, completed under magnetic fields the recycling of magnetic powder with The separation of non magnetic wadding body, the magnetic powder of recycling are back to magnetic kind load pond and realize that magnetic kind recycles, and excess sludge passes through magnetic point It is discharged from mud discharging pipe.
Embodiment 1:
Certain integration apparatus designs water 5000m3/ d, influent COD, BOD5、NH3, TN, TP, SS design value be respectively 400,210,45,60,9,350mg/L, the sum of total residence time are 9.7h；Anaerobic pond, anoxic pond, the sludge in aerobic decarburization pond are dense Degree is 2500-3000mg/L；Activated Sludge System sludge age is 6d；The suspending carrier filling rate of anaerobic pond 20%, ORP <- 250mV；The suspending carrier filling rate of anoxic pond is 30%, DO < 0.4mg/L；First autotrophic denitrification pond suspending carrier filling rate exists 40%, film surface load is in 2.0~2.5gN/m2D, DO 1.5-2.0mg/L；Second autotrophic denitrification pond suspending carrier filling rate 50%, film surface load is in 0.8-1.2gN/m2D, DO 0.5-1.5mg/L；Aerobic nitrification pond suspending carrier filling rate exists 35%, film surface load is in 1.0-1.2gN/m2D, DO 2-4mg/L；Anaerobic pond hydraulic detention time is in 90min, and deaerate water The power residence time is in 20min；Secondary settling tank surface loading is in 1.2m3/m2·h；Second anoxic pond, third aerobic tank sludge concentration < 400mg/L；The hydraulic detention time of dosing mixing pit is 2min, and the hydraulic detention time that magnetic kind loads pond is 2min, and flocculation is anti- The hydraulic detention time of Ying Chi is 3min, and the residence time of final deposition pool is 30min, surface loading 20m3/m2H, water outlet COD, BOD5、NH3, TN, TP, SS average value be respectively 12.3,2.2,0.27,4.52,0.08,4.2mg/L.
Embodiment 2:
Technological parameter is provided that
Certain integration apparatus designs water 300m3/ d, influent COD, BOD5、NH3, TN, TP, SS design value be respectively 360, 170,35,45,4.5,290mg/L, the sum of total residence time are 7.5h；Anaerobic pond, anoxic pond, the sludge concentration in aerobic decarburization pond It is 2500-3000mg/L；Activated Sludge System sludge age is 5.5d；The suspending carrier filling rate of anaerobic pond 30%, ORP <- 250mV；The suspending carrier filling rate of anoxic pond is 25%, DO < 0.4mg/L；First autotrophic denitrification pond suspending carrier filling rate exists 50%, film surface load is in 1.5~2.0gN/m2D, DO 1.5-2.0mg/L；Second autotrophic denitrification pond suspending carrier filling rate 40%, film surface load is in 0.7-1.0gN/m2D, DO 0.5-1.5mg/L；Aerobic nitrification pond suspending carrier filling rate exists 40%, film surface load is in 0.8-1.0gN/m2D, DO 2-3mg/L；Anaerobic pond hydraulic detention time is in 60min, and deaerate water The power residence time is in 15min；Secondary settling tank surface loading is in 1.4m3/m2·h；Second anoxic pond, third aerobic tank sludge concentration < 450mg/L；The hydraulic detention time of dosing mixing pit is 1.5min, and the hydraulic detention time that magnetic kind loads pond is 1.5min, wadding The hydraulic detention time of solidifying reaction tank is 2min, and the residence time of final deposition pool is 20min, surface loading 15m3/m2H, water outlet COD、BOD5、NH3, TN, TP, SS average value be respectively 13.1,2.7,0.36,4.22,0.09,4.3mg/L.
Embodiment 3:
Difference from Example 1 is:
Technological parameter is provided that
Certain integration apparatus designs water 500m3/ d, influent COD, BOD5、NH3, TN, TP, SS design value be respectively 220, 130,25,40,3.5,180mg/L, the sum of total residence time are 6.3h；Anaerobic pond, anoxic pond, the sludge concentration in aerobic decarburization pond It is 2500-3000mg/L；Activated Sludge System sludge age is 6d；The suspending carrier filling rate of anaerobic pond 30%, ORP <- 250mV；The suspending carrier filling rate of anoxic pond is 40%, DO < 0.4mg/L；First autotrophic denitrification pond suspending carrier filling rate exists 35%, film surface load is in 2.2~2.6gN/m2D, DO 1.5-2.0mg/L；Second autotrophic denitrification pond suspending carrier filling rate 30%, film surface load is in 0.9-1.3gN/m2D, DO 0.5-1.5mg/L；Aerobic nitrification pond suspending carrier filling rate exists 30%, film surface load is in 1.2-1.5gN/m2D, DO 3-4mg/L；Anaerobic pond hydraulic detention time is in 70min, and deaerate water The power residence time is in 20min；Secondary settling tank surface loading is in 1.35m3/m2·h；Second anoxic pond, third aerobic tank sludge concentration < 400mg/L；The hydraulic detention time of dosing mixing pit is 2min, and the hydraulic detention time that magnetic kind loads pond is 2min, and flocculation is anti- The hydraulic detention time of Ying Chi is 2.5min, and the residence time of final deposition pool is 30min, surface loading 25m3/m2H, water outlet COD、BOD5、NH3, TN, TP, SS average value be respectively 15.7,3.1,0.25,4.68,0.07,3.7mg/L.
Above-mentioned unlisted part can obviously be realized under the guide of above-described embodiment 1-3.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ", The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom" "inner", "outside" is side based on the figure Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Specific embodiment described herein is only to spiritual example explanation of the invention.Belonging to the present invention Those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitutes, and however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims (10)

1. a kind of sewage autotrophy processing system based on MBBR and Magneto separate comprising reactor, it is characterised in that: described is anti- Device is answered to handle in such a way that MBBR is combined with Magneto separate precipitating the two sewage, the reactor includes being sequentially communicated Anaerobic pond, anoxic pond, aerobic decarburization pond, secondary settling tank, the first autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification pond, de- Gas pond, dosing mixing pit, magnetic kind load pond, flocculation tank and final deposition pool；
It further include magnetic powder separator and magnetic powder recovering device, the sludge out pipe of the magnetic powder separator and the final deposition pool Connection, the magnetic powder recovering device are connect with magnetic powder separator, magnetic kind load pond respectively；
It has been added in the anaerobic pond, anoxic pond, the first autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification pond Suspending carrier；
It is dedicated that suspending carrier is provided in the anaerobic pond, anoxic pond, the first autotrophic denitrification pond, the second autotrophic denitrification pond First blender；First autotrophic denitrification pond, the second autotrophic denitrification pond are provided with perforated pipe aerating regulation device in aerobic nitrification pond； The aerobic decarburization pond is provided with micro-hole aerator；The dosing mixing pit, magnetic kind load pond are set gradually in flocculation tank There are the second blender, third blender, the 4th blender；
The anaerobic pond is connected with water inlet pipe, and the final deposition pool is connected with outlet pipe；
The secondary settling tank is connected with MBBR mud discharging pipe, and the final deposition pool is also connected with Magneto separate mud discharging pipe；
It is connected with nitrification liquid return pipe between the aerobic nitrification pond and anoxic pond, one end positioned at aerobic nitrification pond is as water inlet Mouthful, one end positioned at anoxic pond is as water outlet；It is connected with mud return line between the secondary settling tank and the anaerobic pond, Positioned at one end of secondary settling tank as mud inlet end, one end positioned at anaerobic pond is as mud outlet end；The MBBR mud discharging pipe with The mud return line common sparing pipeline.
2. a kind of sewage autotrophy processing system based on MBBR and Magneto separate according to claim 1, it is characterised in that: phase Separated between adjacent pond body by partition, the mouth of a river of crossing for keeping adjacent pond body connection is provided on the partition, including Anaerobic pond on anaerobic pond and the spacing board of anoxic pond crosses the mouth of a river, on the spacing board in anoxic pond Yu aerobic decarburization pond Anoxic pond crosses the mouth of a river, the mouth of a river is crossed in the aerobic decarburization pond on the spacing board of aerobic decarburization pond and secondary settling tank, be located at secondary settling tank with Secondary settling tank on the spacing board in the first autotrophic denitrification pond crosses the mouth of a river, between the first autotrophic denitrification pond and the second autotrophic denitrification pond The mouth of a river, second on the spacing board in the second autotrophic denitrification pond and aerobic nitrification pond are crossed certainly in the first autotrophic denitrification pond on partition Feeding denitrification tank crosses the mouth of a river, and the aerobic nitrification pond on the spacing board in aerobic nitrification pond and degassing pond crosses the mouth of a river, is located at degassing pond The mouth of a river, adding on the spacing board in dosing mixing pit and magnetic kind load pond are crossed with the degassing pond on the spacing board of dosing mixing pit Medicine mixing pit crosses the mouth of a river, the magnetic kind load pond on the spacing board of magnetic kind load pond and flocculation tank and crosses the mouth of a river and be located at wadding Flocculation tank on the spacing board of solidifying reaction tank and final deposition pool crosses the mouth of a river.
3. a kind of sewage autotrophy processing system based on MBBR and Magneto separate according to claim 2, it is characterised in that: In The anaerobic pond crosses the front at the mouth of a river, the anoxic pond crosses the front at the mouth of a river, the mouth of a river is crossed in the first autotrophic denitrification pond Front, the second autotrophic denitrification pond cross in front of the mouth of a river and be provided with the first interception sieve, described first intercepts sieve Net is flat screen, and the upper edge of the first interception sieve 30cm, lower edge below operating water level are higher than the one of operating water level Half, the operating water level is lower identical along mounting height with the outlet pipe.
4. a kind of sewage autotrophy processing system based on MBBR and Magneto separate according to claim 2, it is characterised in that: In The aerobic nitrification pond, which is crossed in front of the mouth of a river, is provided with the second interception sieve, and the second interception sieve is roller sieve, Described second intercepts the upper edge of sieve in operating water level 65% hereinafter, lower edge is higher than the 35% of operating water level, the fortune Row water level is lower identical along mounting height with the outlet pipe.
5. a kind of sewage autotrophy processing system based on MBBR and Magneto separate according to claim 1, it is characterised in that: institute It is connected between the magnetic powder separator and the magnetic powder recovering device stated by enters mud pipe, the magnetic powder recovering device and institute It is connected between the magnetic kind load pond stated by magnetic kind return pipe.
6. a kind of sewage autotrophy processing system based on MBBR and Magneto separate according to claim 1, it is characterised in that: institute The suspending vehicle density stated is 0.95-1.04g/cm3, voidage > 90%；Suspending vehicle density in anaerobic pond is 0.95-0.97g/cm3, the suspending vehicle density in anoxic pond be 1.02-1.04g/cm3, suspending carrier effective ratio area is 300-620m2/m3；Suspending vehicle density positioned at the first autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification pond is 0.97- 0.99g/cm3, suspending carrier effective ratio area is 620-1200m2/m3。
7. a kind of sewage autotrophy processing system based on MBBR and Magneto separate according to claim 1, it is characterised in that: institute Downward, hatch bore diameter 4-6mm, mounting height is located at the above 30cm of bottom of pond to the opening direction for the perforated pipe aerating regulation device stated.
8. a kind of sewage autotrophy processing system based on MBBR and Magneto separate according to claim 2, it is characterised in that: institute The mouth of a river is crossed in the aerobic decarburization pond stated, secondary settling tank crosses the mouth of a river, dosing mixing pit crosses the mouth of a river, flocculation tank is crossed the upper edge at the mouth of a river and transported 30cm below row water level, the degassing pond cross on the mouth of a river along in operating water level 80% hereinafter, lower edge is higher than operating water level 50%, mouth of a river lower edge is crossed in the magnetic kind load pond and the bottom of pond in the magnetic kind load pond maintains an equal level.
9. a kind of sewage autotrophy processing method based on MBBR and Magneto separate, it is characterised in that: it uses claim 1-8 any A kind of sewage autotrophy processing system based on MBBR and Magneto separate described in, the processing method successively includes following step It is rapid:
A, treatment sewage initially enters anaerobic pond, and the activated sludge of secondary settling tank reflux carries out anaerobism using dirty Organic substance in water and releases Phosphorus, the microorganism of apposition growth completes the hydrolysis to carbon source in water on suspending carrier, in the sewage that increased sharply it is high-quality quickly The concentration of carbon source such as volatile fatty acid；
B, anaerobic pond water outlet enters anoxic pond, passes through the denitrifying bacteria completion pair of apposition growth on activated sludge and suspending carrier The nitrate removal that the nitrification liquid that flows back carries, while consuming raw water partial organic substances；
C, anoxic pond water outlet enters aerobic decarburization pond, and the removal of raw water organic matter is completed by the heterotroph in activated sludge；
D, aerobic decarburization pond water outlet enters secondary settling tank, completes mud-water separation, the sludge after sedimentation is back to by mud return line Anaerobic pond, excess sludge are discharged by MBBR mud discharging pipe, secondary clarifier effluent COD < 50mg/L, SS < 100mg/L, with water inlet It compares, secondary clarifier effluent ammonium oxidation rate is less than 10%；
E, secondary clarifier effluent enters the first autotrophic denitrification pond, passes through the nitrite bacteria and anaerobism ammonia of apposition growth on suspending carrier Oxidizing bacteria carries out short distance nitration and Anammox reaction respectively, completes the part removal of total nitrogen；
F, the first autotrophic denitrification pond water outlet enters the second autotrophic denitrification pond, passes through the nitrite bacteria of apposition growth on suspending carrier It carries out short distance nitration and Anammox reaction respectively with anaerobic ammonium oxidizing bacteria, completes the further removal of total nitrogen；
G, the second autotrophic denitrification pond water outlet enters aerobic nitrification pond, is completed by the nitrobacteria of apposition growth on suspending carrier surplus The removal of remaining ammonia nitrogen；
H, the water outlet of aerobic nitrification pond enters degassing pond, reduces the DO of carrying, and be back to anoxic pond by nitrification liquid return pipe,
I, the water outlet of degassing pond is successively by dosing mixing pit, magnetic kind load pond and flocculation tank, by adding to the magnetic kind It carries pond and flocculation tank adds magnetic kind and flocculant respectively, be condensed into particulate form and colloidal organic substrate in sewage with magnetic Floc sedimentation of the kind as " core "；
J, flocculation tank water outlet enters final deposition pool completion mud-water separation, and supernatant reaches the discharge standard of sewage, by final deposition pool Outlet pipe discharge；
K, final deposition pool bottom magnetic floc sedimentation enters magnetic powder separator, is broken up magnetic floc sedimentation by shearing force, forms magnetic powder-wadding Body mixed liquor；
L, magnetic powder separator goes out water mixed liquid and enters magnetic powder recovering device, completed under magnetic fields the recycling of magnetic powder with it is non-magnetic Property wadding body separation, the magnetic powder of recycling is back to magnetic kind load pond and realizes that magnetic kind recycles, and excess sludge is dirty by Magneto separate Mud discharged.
10. a kind of sewage autotrophy processing method based on MBBR and Magneto separate according to claim 9, it is characterised in that: The anaerobic pond, anoxic pond, the sludge concentration in aerobic decarburization pond are 1500-3000mg/L；Activated Sludge System sludge age < 6d；The suspending carrier filling rate of anaerobic pond is in 10-50%, ORP < -200mV；The suspending carrier filling rate of anoxic pond is in 10- 50%, DO < 0.4mg/L；First autotrophic denitrification pond suspending carrier filling rate is in 30-66%, and film surface load is in 1.5-3.0gN/ m2D, DO 1.5-2.5mg/L；Second autotrophic denitrification pond suspending carrier filling rate is in 30-66%, and film surface load is in 0.5- 1.5gN/m2D, DO 0.5-1.5mg/L；Aerobic nitrification pond suspending carrier filling rate is in 30-66%, and film surface load is in 0.8- 1.5gN/m2D, DO 2-4mg/L；Anaerobic pond hydraulic detention time is in 45-90min, and the tank waterpower residence time that deaerates is in 10- 20min；Secondary settling tank surface loading is in 1.2-1.5m3/m2·h；First autotrophic denitrification pond, the second autotrophic denitrification pond, aerobic nitrification pond Sludge concentration < 500mg/L；The hydraulic detention time of dosing mixing pit is 1.5-2min, and magnetic kind loads the hydraulic detention time in pond For 1.5-2min, the hydraulic detention time of flocculation tank is 2-3min, and the residence time of final deposition pool is 20-30min, and surface is negative Lotus is 15-30m3/m2·h。
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