CN110407410A - A kind of wastewater treatment equipment and its method based on biofilm particles sewage sludge reactor - Google Patents
A kind of wastewater treatment equipment and its method based on biofilm particles sewage sludge reactor Download PDFInfo
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- CN110407410A CN110407410A CN201910701371.5A CN201910701371A CN110407410A CN 110407410 A CN110407410 A CN 110407410A CN 201910701371 A CN201910701371 A CN 201910701371A CN 110407410 A CN110407410 A CN 110407410A
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- 239000002245 particle Substances 0.000 title claims abstract description 76
- 239000010801 sewage sludge Substances 0.000 title claims abstract description 50
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title abstract description 20
- 239000002351 wastewater Substances 0.000 claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000010802 sludge Substances 0.000 claims abstract description 69
- 230000001112 coagulating effect Effects 0.000 claims abstract description 36
- 230000003750 conditioning effect Effects 0.000 claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000001556 precipitation Methods 0.000 claims abstract description 20
- 238000012163 sequencing technique Methods 0.000 claims abstract description 17
- 239000000701 coagulant Substances 0.000 claims abstract description 7
- 238000005273 aeration Methods 0.000 claims description 46
- 239000007789 gas Substances 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 26
- 238000010992 reflux Methods 0.000 claims description 20
- 239000008187 granular material Substances 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 6
- 230000000050 nutritive effect Effects 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 239000006228 supernatant Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000010842 industrial wastewater Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
-
- 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
Abstract
The invention discloses a kind of wastewater treatment equipment and its method based on biofilm particles sewage sludge reactor, which includes: grid pond, setting pot, conditioning tank, conditioning tank water pump, first pipe mixer, second pipe mixer, coagulative precipitation tank, the first intermediate pool and sequencing batch biofilm granular sludge expansion bed reactor；Grid pond outlet is connect with setting pot entrance, setting pot outlet is connect with conditioning tank entrance, outlet of regulating reservoir is connect by conditioning tank water pump with first pipe mixer, first pipe mixer is mixed with coagulant, and connect with second pipe mixer, second pipe mixer is mixed with flocculant, and connect with coagulative precipitation tank entrance, coagulative precipitation tank outlet is connect with the first intermediate pool entrance, and the outlet of the first intermediate pool is connect with sequencing batch biofilm granular sludge expansion bed reactor.The present invention constitutes waste water two stage biological processing unit, efficiency, the operating cost for improving biological wastewater treatment is low, it is compact-sized, reduce occupied area.
Description
Technical field
The present invention relates to technical field of waste water processing, and in particular to a kind of waste water based on biofilm particles sewage sludge reactor
Processing unit and its method.
Background technique
In order to avoid industrial wastewater pollution causes to seriously endanger to human health and ecological environment, in order to improve the people's livelihood
And ecological environment, industrial wastewater must through processing and detect it is up to standard after could discharge.Currently, the main method of Industrial Wastewater Treatment
There are physical method, chemical method, physical chemistry method and biological method etc., the existing generally existing following disadvantage of method for biologically treating wastewater
End: process flow is complicated, needs biggish occupied area and higher capital expenditure；Microorganism concn is low, and sludge is easy to expand；
To water quality, the variation bad adaptability of water；Oxygen transmission efficiency is low, and the consumption of power is big；The maintenance and management difficulty of operation is big；It is real
When on-line automaticization controlling extent it is low, energy consumption is high.The problem of how better solving conventional waste water treatment process is improved
The efficiency of biological treatment is the emphasis and trend of wastewater processing technology research.
Summary of the invention
In order to overcome shortcomings and deficiencies of the existing technology, the present invention provides a kind of based on biofilm particles sludge reaction
The wastewater treatment equipment and its method of device, improve the efficiency of biological wastewater treatment, while reducing processing cost.
In order to achieve the above object, the invention adopts the following technical scheme:
The present invention provides a kind of wastewater treatment equipment based on biofilm particles sewage sludge reactor, comprising: grid pond, sand setting
Pond, conditioning tank, conditioning tank water pump, first pipe mixer, second pipe mixer, coagulative precipitation tank, the first intermediate pool and
Sequencing batch biofilm granular sludge expansion bed reactor；
The grid pond outlet is connect with setting pot entrance, and the setting pot outlet is connect with conditioning tank entrance, the tune
The outlet of section pond is connect by conditioning tank water pump with first pipe mixer, and the first pipe mixer is mixed with coagulant, and
It is connect with second pipe mixer, the second pipe mixer is mixed with flocculant, and connect with coagulative precipitation tank entrance, institute
It states coagulative precipitation tank outlet to connect with the first intermediate pool entrance, the first intermediate pool outlet and sequencing batch biofilm particle
The connection of sludge bulking bed reactor.
It is additionally provided with anaerobic reactor and the second intermediate pool, the anaerobic reactor entrance as a preferred technical solution,
It exports and connects with the first intermediate pool, the anaerobic reactor outlet is connect with the second intermediate pool entrance, among described second
Basin outlet is connect with sequencing batch biofilm granular sludge expansion bed reactor.
The sequencing batch biofilm granular sludge expansion bed reactor is equipped with as a preferred technical solution: water inlet, branch
Fagging, bio-carrier bed, limit plate, water distribution system, gas distribution system, water distributor, aerating system, the first air blower, the second air blast
Machine, the first intake pump and circulating outlet；
The water inlet is connect with the water outlet of the second intake pump, and the bio-carrier bed setting is on the supporting plate, described
Bio-carrier bed is provided with bio-carrier, the irregular dispersed placement of bio-carrier, the bio-carrier bed and limit plate
Interval forms expansion space, and the gas distribution system is connect with the second air blower, and the water distributor installs the exposure on the supporting plate
Gas system is connect with the first air blower, and the circulating outlet is connect with the water inlet of the first intake pump, the water distribution system with
The water outlet of first intake pump connects.
The sequencing batch biofilm granular sludge reactor is additionally provided with circulated aeration tank and goes out as a preferred technical solution,
Sink, the effluent trough, which is provided with, is recycled back to head piece, and the head piece that is recycled back to is connect with circulated aeration tank, and the aerating system is set
It sets in circulated aeration tank, the circulating outlet is arranged on circulated aeration tank.
The volume of the expansion space is set as the 1/50-1/ of 9 volume of bio-carrier bed as a preferred technical solution,
20。
The bio-carrier inner ring is equipped with granule sludge as a preferred technical solution, and outer ring is equipped with biomembrane, in inner ring
Equipped with divider.
The bio-carrier is less than 1g/cm using density as a preferred technical solution,3, specific surface area be greater than 500m2/m3
And hollow particle filler of the porosity between 60% and 85%.
The support plate uses porous plate as a preferred technical solution, is uniformly distributed and sets on the through-hole of the support plate
Water distributor is set, waste water is distributed along the vertical sectional uniform of water flow after water distributor and passes through biofilm particles sludge reaction area.
The limit plate uses porous plate as a preferred technical solution, and waste water is through the through-hole on limit plate from biomembrane
Granule sludge reaction zone enters circulating reflux area, and the clear size of opening on limit plate is less than the size of the bio-carrier.
The present invention also provides a kind of wastewater treatment methods based on biofilm particles sewage sludge reactor, include the following steps:
S1: pretreatment: production waste water removes impurity by grid pond, setting pot, subsequently into conditioning tank, carries out water quality water
The well-balanced adjustment of amount；
S2: coagulating kinetics: coagulant is added when passing through first pipe mixer in waste water after pretreatment, by the
Flocculant is added when two pipe-line mixers, and is mixed, carries out coagulating, waste water after coagulating into coagulative precipitation tank
Mud-water separation is generated in coagulative precipitation tank, is extracted supernatant and is entered the first intermediate pool；
S3: nutritive salt is added in the first intermediate pool, and adjusts pH value with lye, acid solution, waste water enters biomembrane
Granular sludge reactor carries out biochemical oxidation processing:
The waste water of S31: the first intermediate pool enters circulated aeration tank, while starting the first intake pump, in circulated aeration tank
Waste water be transported to water distribution system through the first intake pump, into biofilm particles sewage sludge reactor, when biofilm particles sludge is anti-
Stop water inlet after answering device to reach the water level of setting full of waste water in waste water and circulated aeration tank；
S32: after the completion of water inlet, start the first air blower, the waste water in circulated aeration tank is exposed by aerating system
Gas, the waste water in circulated aeration tank are transported to the water distribution gas distribution area of biofilm particles sewage sludge reactor, and then waste water enters biology
Carrier bed carries out biochemical oxidation processing, and subsequently into circulating reflux area, the waste water in circulating reflux area is by being recycled back to head piece
Into circulated aeration tank；During wastewater treatment, it is anti-that the waste water in circulated aeration tank passes sequentially through biofilm particles sludge
Water distribution gas distribution area, biofilm particles sludge reaction area and the circulating reflux area for answering device, carry out the circular treatment of waste water；
S33: in the circular treatment of waste water, stop supplying a period of time to circulated aeration tank, waste water is under anaerobic condition
Carry out circular treatment；After carrying out circular treatment for a period of time, stops the first intake pump and the operation of the first air blower, pass through discharge outlet
Reactor is discharged in certain proportion waste water, returns to step S31；
S4: backwashing bio-carrier by the second air blower and gas distribution system, will be anti-by backwash discharge outlet
Reactor is discharged in waste water after flushing, and is transported to conditioning tank, and carries out coagulating kinetics together by pretreated waste water.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) sequencing batch biofilm granular sludge expansion bed reactor of the invention can be separately formed at waste water two stage biological
Unit is managed, composition two stage biological processing unit can also be combined with anaerobic reactor, high efficient and flexible is integrally improved wastewater biological
The efficiency of processing, reduces occupied area.
(2) biofilm particles sewage sludge reactor sludge concentration of the invention is high, and bio-carrier bed sludge concentration (TSS) reaches
It is good to guarantee that wastewater treatment obtains higher than the sludge concentration of currently used activated sludge process and biofilm by 20-45g/L
Effect, and sludge yield is low, and excess sludge yield is less than 0.15kgTSS/kgCOD, and the excess sludge of specific activity sludge produces
Rate low 60% or more.
(3) bio-carrier inner ring of the invention is equipped with granule sludge, and outer ring is equipped with biomembrane, and the formation of granule sludge is anti-
Answer device that there is the main reason for high sludge concentration, the granule sludge and biomembrane of reactor middle and high concentration ensure that good waste water
Treatment effect.
(4) aerating system of biological treatment is arranged in individual circulated aeration tank the present invention, solves biological treatment
The generally existing aerating system of system is easy the problem of blocking, and aerating system is easy to maintain, meanwhile, circulated aeration tank has dilute
It releases, the effect of balanced water quality, is conducive to improve waste water treatment efficiency.
(5) biofilm particles sewage sludge reactor concision and compact of the invention, high efficient and flexible, adaptable, waste water is passing through
After bio-carrier bed, then the suspended matter in waste water is decomposed, is degraded, therefore, waste water is through biology by microorganism adsorption, retention
Concentration of suspension is very low after the processing of membrane granule sewage sludge reactor, and effluent characteristics are stablized, and does not need secondary settling tank.
(6) sequencing batch biofilm granular sludge expansion bed reactor of the invention is provided with expansion space, makes wastewater treatment
The bio-carrier in bio-carrier bed is in microdilatancy state in the process, is conducive to waste water in biofilm particles sludge reaction area
Be uniformly distributed, uniformly handled, effectively increase the efficiency of wastewater treatment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the wastewater treatment equipment based on biofilm particles sewage sludge reactor of the present embodiment 1；
Fig. 2 is the partial enlarged view of bio-carrier bed at I in Fig. 1；
Fig. 3 is the bio-carrier structural schematic diagram of the present embodiment 1；
Fig. 4 is the structural schematic diagram of the wastewater treatment equipment based on biofilm particles sewage sludge reactor of the present embodiment 2；
Fig. 5 is the structural schematic diagram of the biofilm particles sewage sludge reactor of the present embodiment 3.
Wherein, 1- biofilm particles sewage sludge reactor, 2- circulated aeration tank, the first intake pump of 3-, 4- water distribution system, 5- branch
Fagging, 6- water distributor, 7- bio-carrier bed, the expansion space 8-, 9- limit plate, 10- effluent trough, the second intake pump of 11-, 12-
One air blower, 13- aerating system, the second air blower of 14-, 15- gas distribution system, 16- discharge outlet, 17- grid pond, 18- setting pot,
19- conditioning tank, 20- first pipe mixer, 21- second pipe mixer, 22- coagulative precipitation tank, the first intermediate pool of 23-,
24- third water pump, 25- anaerobic reactor, the second intermediate pool of 26-, 27- granule sludge, 28- biomembrane, 29- adjust water
Pump.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of wastewater treatment equipment based on biofilm particles sewage sludge reactor, packet
Include: grid pond 17, setting pot 18, conditioning tank 19, conditioning tank water pump 29, first pipe mixer 20, second pipe mixer 21,
Coagulative precipitation tank 22, the first intermediate pool 23 and biofilm particles sewage sludge reactor 1, waste water remove coarse miscellaneous by grid pond 17
Matter enters back into the removal heavy seeds of setting pot 18 subsequently into conditioning tank 19 and the well-balanced adjustment of water quality and quantity is carried out, by first
Coagulant is added when pipe-line mixer 20, by adding flocculant when second pipe mixer 21, is carried out in coagulative precipitation tank
Coagulating, coagulating for a period of time after waste water generate mud-water separation in coagulative precipitation tank, supernatant enters in first
Between pond 23, add nutritive salt, and adjust pH value with lye, acid solution, batch-type then entered by the second intake pump 11
Biofilm particles sludge bulking bed reactor, while starting the first intake pump 3, waste water is in biofilm particles sewage sludge reactor 1
Carry out biochemical oxidation circular treatment.
In the present embodiment, biofilm particles sewage sludge reactor 1 is provided with water distribution gas distribution area A, life along wastewater treatment direction
Object membrane granule sludge reaction area B and circulating reflux area C；Water distribution gas distribution area A is equipped with water distribution system 4, gas distribution system 15, is mounted on branch
Water distributor 6 on fagging 5, the gas distribution system 15 are connected by pipeline and the second air blower 14；The biofilm particles sludge
Reaction zone B includes support plate 5, the bio-carrier bed 7 being arranged in above support plate 5, limit plate 9 and bio-carrier bed 7 and limit
The expansion space 8 formed between the plate 9 of position；The circulating reflux area C is provided with effluent trough 10, and effluent trough 10 is provided with circulating reflux
Mouthful, it is recycled back to head piece and is connect by pipeline with circulated aeration tank 2；
In the present embodiment, support plate 5 uses porous plate, and water distributor 6 is arranged on the through-hole of support plate 5, makes waste water along water
Vertical sectional uniform is flowed to be distributed and pass through biofilm particles sludge reaction area；Limit plate 9 uses porous plate, and waste water is through limit plate
Through-hole on 9 enters circulating reflux area from biofilm particles sludge reaction area, and the clear size of opening on limit plate 9 is less than biomembrane
The size of bio-carrier in grain sludge reaction area；
In the present embodiment, circulated aeration tank 2 is provided with aerating system 13 and circulating outlet, and aerating system passes through pipeline
It is connected with the first air blower 12, circulating outlet is connect by pipeline with the water inlet of the first intake pump 3, the first intake pump 3
Water outlet is connect with water distribution system 4；
In the present embodiment, backwash discharge outlet is additionally provided on biofilm particles sewage sludge reactor 1；Circulated aeration tank 2
On be additionally provided with water inlet and discharge outlet 16；
In the present embodiment, the minimum volume of expansion space 8 is 0, and the maximum volume of expansion space 8 is bio-carrier bed 7
The 1/10 of volume；The volume of the present embodiment expansion space 8 is preferably arranged to the 1/50-1/20 of 7 volume of bio-carrier bed；
In the present embodiment, the flow velocity for maintaining waste water certain when passing through bio-carrier bed 7, makes the life in bio-carrier bed 7
Object carrier is in microdilatancy state, and bio-carrier expansion is filled with the entire sky including bio-carrier bed 7 and expansion space 8
Between, preferable flow rate 1.5-15mm/s, bio-carrier is less than 1g/cm using density3, specific surface area be greater than 500m2/m3And hole
Hollow particle filler of the rate between 60% and 85%.
As shown in Fig. 2, bio-carrier is in microdilatancy state in wastewater treatment process, it is irregular to be distributed in biomembrane
In granule sludge reaction zone B；As shown in figure 3, bio-carrier inner ring is equipped with granule sludge 27, outer ring forms biomembrane 28, inner ring
Interior to be equipped with divider, reactor has been formed simultaneously granule sludge and biomembrane, and granule sludge and biomembrane exist simultaneously aerobic, simultaneous
Oxygen and anaerobe group；After the completion of reactor sludge acclimatization, granule sludge is produced in bio-carrier, and carrier surface
Biomembrane is formd, the formation of granule sludge is that reactor has the main reason for high sludge concentration, reactor middle and high concentration
Granule sludge and biomembrane ensure that good water treatment effect.
The specific waste water treatment step of the present embodiment is as described below:
S1: pretreatment: production waste water removes coarse impurities by grid pond 17, enters back into setting pot 18 and removes heavy seeds,
Subsequently into conditioning tank 19, the well-balanced adjustment of water quality and quantity is carried out；
S2: coagulating kinetics: waste water after pretreatment passes through first pipe mixer 20 and second pipe mixer
21, and the aluminium polychloride (PAC) and 6mg/L cationic polyacrylamide (CPAM) of 400mg/L are successively sequentially added, stirring makes
PAC and CPAM in waste water are uniformly mixed, and carry out coagulating into coagulative precipitation tank 22, waste water is in coagulative precipitation tank after reaction
Mud-water separation is generated in 22, supernatant is extracted and enters the first intermediate pool 23, is deposited in the sludge of coagulating sedimentation bottom of pond portion through de-
It is transported outward after water desiccation, carries out further innoxious, stabilisation and recycling treatment disposition；
S3: waste water adds nutritive salt needed for biological treatment etc. in the first intermediate pool 23, and is adjusted with lye, acid solution
PH value, waste water enter biofilm particles sewage sludge reactor 1 and carry out biochemical oxidation processing:
1) it intakes
Waste water in first intermediate pool 23 enters from the inlet circulated aeration tank 2 by the second intake pump 11, opens simultaneously
The first intake pump 3 is moved, the waste water in circulated aeration tank 2 is transported to water distribution system 4 through the first intake pump 3 by circulating outlet,
Into biofilm particles sewage sludge reactor 1, when biofilm particles sewage sludge reactor 1 is full of waste water in waste water and circulated aeration tank 2
Stop water inlet after reaching certain water level；
In the present embodiment, waste water uses papermaking coating waste water, and waste water COD 3250mg/L, coloration 2700C.U., SS are
280mg/L；
2) processing and circulation of waste water
After the completion of water inlet, the first air blower 12 of starting exposes the waste water in circulated aeration tank 2 by aerating system 13
Gas；
It is anti-that waste water in circulated aeration tank 2 by circulating outlet is transported to biofilm particles sludge through the first intake pump 3
The water distribution system 4 for answering the water distribution gas distribution area A of device 1, into water distribution gas distribution area A, the waste water of water distribution gas distribution area A passes through in support plate 5
Water distributor 6, into the bio-carrier bed 7 of biofilm particles sewage sludge reactor 1, waste water carries out bioid in bio-carrier bed 7
Oxidation processes are learned, then enter circulating reflux area C by limit plate 9；
Waste water in circulating reflux area C enters circulated aeration tank through pipeline by the way that the head piece that is recycled back to of effluent trough 10 is arranged in
2, the waste water in circulated aeration tank 2 passes sequentially through the water distribution gas distribution of biofilm particles sewage sludge reactor 1 through the first intake pump 3 again
Area A, biofilm particles sludge reaction area B and circulating reflux area C, carry out the processing and circulation of waste water；
The volume of the expansion space 8 of biofilm particles sewage sludge reactor 1 is the 1/20 of 7 volume of biological carrier bed, and waste water exists
The flow velocity of biofilm particles sewage sludge reactor 1 is 15mm/s, and one process cycle of waste water is 8h, wherein aeration runing time is
5h, anoxic runing time are 1h, and biofilm particles sludge reaction area B dissolved oxygen concentration is 4-5mg/L when aeration is run；
3) it drains
In wastewater treatment process, stop the first air blower 12 to circulated aeration tank 2 and supply a period of time, lacks waste water
It handles and recycles under oxygen condition, wastewater treatment after a certain period of time, stops the first intake pump 3 and the operation of the first air blower 12, passes through
Discharge outlet 16 is by 30% discharge reactor of waste water total amount in biofilm particles sewage sludge reactor 1 and circulated aeration tank 2, through handling
Waste water COD is 115mg/L, coloration 25C.U., SS 28mg/L afterwards.
After handling waste water for a period of time, it can be recoiled by the second air blower 14 and gas distribution system 15 to bio-carrier
It washes, the waste water after backwash is discharged by reactor by backwash discharge outlet, and be transported to conditioning tank 19, and by pretreated
Waste water carries out coagulating kinetics together.
In the present embodiment, sky is expanded by changing PAC additional amount, CPAM additional amount, biofilm particles sewage sludge reactor
Between volume, waste water biofilm particles sewage sludge reactor flow velocity, aeration the parameters such as runing time and anoxic runing time, can
It is described in detail below to obtain different water treatment effects:
In terms of wastewater volume, PAC additional amount is 200mg/L, and CPAM additional amount is 4mg/L, biofilm particles sludge reaction
The volume of the expansion space of device is the 1/50 of biological carrier bed volume, and waste water is 1.5mm/s, waste water in the flow velocity of bio-carrier bed
One process cycle is 8h, wherein aeration runing time is 4h, anoxic runing time is 2h, and biofilm particles are dirty when being aerated operation
Mud reaction zone B dissolved oxygen concentration is 4-5mg/L, and waste water COD is 205mg/L, coloration 78C.U., SS 34mg/ after processing
L；
In terms of wastewater volume, PAC additional amount is 300mg/L, and CPAM additional amount is 5mg/L, biofilm particles sludge reaction
The volume of the expansion space of device is the 1/40 of biological carrier bed volume, and waste water is 8mm/s, waste water one in the flow velocity of bio-carrier bed
A process cycle is 8h, wherein aeration runing time is 5h, anoxic runing time is 1h, biofilm particles sludge when being aerated operation
Reaction zone B dissolved oxygen concentration is 4-5mg/L, and waste water COD is 124mg/L, coloration 43C.U., SS 36mg/L after processing；
For the waste water that the present embodiment uses for secondary fiber papermaking waste water, waste water COD is 4590 ± 80mg/L, coloration 1070
± 50C.U., SS are 160 ± 15mg/L；In terms of wastewater volume, PAC additional amount is 400mg/L, and CPAM additional amount is 6mg/L, will
The volume of expansion space is set as the 1/40 of 7 volume of bio-carrier bed, and waste water is 7mm/s, waste water in the flow velocity of bio-carrier bed
One process cycle is 8h, wherein aeration runing time is 3h, anoxic runing time is 3h, and biofilm particles are dirty when being aerated operation
Mud reaction zone B dissolved oxygen concentration is 4-5mg/L, and waste water COD is 220 ± 40mg/L after processing, and coloration is 25 ± 5C.U., SS
For 10 ± 4mg/L.
Embodiment 2
For the technical solution of the present embodiment 2 other than following technical characteristics, other technical solutions are same as Example 1:
As shown in figure 4, the present embodiment provides a kind of wastewater treatment equipment based on biofilm particles sewage sludge reactor, packet
Include: grid pond 17, setting pot 18, conditioning tank 19, first pipe mixer 20, second pipe mixer 21, coagulative precipitation tank 22,
First intermediate pool 23, third water pump 24, anaerobic reactor 25, the second intermediate pool 26 and biofilm particles sewage sludge reactor 1,
Waste water removes coarse impurities by grid pond 17, enters back into setting pot 18 and removes heavy seeds, subsequently into conditioning tank 19, carries out water
The well-balanced adjustment of matter water, by adding coagulant when first pipe mixer 20, by being added when second pipe mixer 21
Flocculant, carries out coagulating in coagulative precipitation tank, coagulating for a period of time after waste water generated in coagulative precipitation tank
Mud-water separation, supernatant enter the first intermediate pool 23, add nutritive salt, and adjust pH value with lye, acid solution, then pass through
Third water pump 24 enters anaerobic reactor 25, enters the second intermediate pool 26 after carrying out anaerobic reaction, adds nutritive salt again,
And pH value is adjusted with lye, acid solution, it is anti-then to enter sequencing batch biofilm granular sludge expansion bed by the second intake pump 11
Device is answered, while starting the first intake pump 3, waste water carries out at biochemical oxidation circulation in biofilm particles sewage sludge reactor 1
Reason.
In the present embodiment, sequencing batch biofilm granular sludge expansion bed reactor can be separately formed waste water two stage biological
Processing unit, can also be combined composition two stage biological processing unit with anaerobic reactor, and it is raw to be integrally improved waste water for high efficient and flexible
The efficiency of object processing, reduces occupied area.
Embodiment 3
For the technical solution of the present embodiment 3 other than following technical characteristics, other technical solutions are same as Example 1:
As shown in figure 5, the biofilm particles sewage sludge reactor in embodiment 1 can also use integral structure, and will
Aerating system is provided separately within circulating reflux area C, can also achieve the purpose that maintain easily, reduce occupied area.
The biofilm particles sewage sludge reactor of the present embodiment is disposed with water distribution gas distribution area, life in wastewater treatment flow direction
Object membrane granule sludge reaction area and circulating reflux area；
Wherein, biofilm particles sludge reaction area includes support plate 5, bio-carrier bed 7, limit plate 9 and expansion space 8,
Bio-carrier bed 7 is arranged in support plate 5, and the interval of bio-carrier bed 7 and limit plate 9 forms expansion space；Water distribution gas distribution area
It is provided with water distribution system 4, gas distribution system 15, water distributor 6 and the second air blower 14, gas distribution system 15 and the second air blower 14 connect
It connects, water distributor 6 is mounted in support plate 5；Circulating reflux area is provided with aerating system 13, the first air blower 12, the first intake pump 3
And circulating outlet, circulating outlet are connect with the water inlet of the first intake pump 3, the water outlet of water distribution system 4 and the first intake pump 3
Mouth connection, aerating system 13 are connect with the first air blower 12.
Water inlet, 16 and of discharge outlet are additionally provided on the sequencing batch biofilm granular sludge expansion bed reactor of the present embodiment
Discharge outlet is backwashed, the present embodiment water inlet is located at circulating reflux area C, and water inlet is connect with the second intake pump 11, discharge outlet 16
It is located at biofilm particles sludge reaction area B, backwash discharge outlet is located at water distribution gas distribution area A.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of wastewater treatment equipment based on biofilm particles sewage sludge reactor characterized by comprising grid pond, sand setting
Pond, conditioning tank, conditioning tank water pump, first pipe mixer, second pipe mixer, coagulative precipitation tank, the first intermediate pool and
Sequencing batch biofilm granular sludge expansion bed reactor；
The grid pond outlet is connect with setting pot entrance, and the setting pot outlet is connect with conditioning tank entrance, the conditioning tank
Outlet is connect by conditioning tank water pump with first pipe mixer, and the first pipe mixer is mixed with coagulant, and with the
The connection of two pipe-line mixers, the second pipe mixer is mixed with flocculant, and connect with coagulative precipitation tank entrance, described mixed
Solidifying sedimentation basin outlet is connect with the first intermediate pool entrance, the first intermediate pool outlet and sequencing batch biofilm granule sludge
Expanded bed reactor connection.
2. the wastewater treatment equipment according to claim 1 based on biofilm particles sewage sludge reactor, which is characterized in that also
Equipped with anaerobic reactor and the second intermediate pool, the anaerobic reactor entrance and the outlet of the first intermediate pool are connected, described to detest
Oxygen reactor outlet is connect with the second intermediate pool entrance, the second intermediate pool outlet and sequencing batch biofilm granule sludge
Expanded bed reactor connection.
3. the wastewater treatment equipment according to claim 1 or 2 based on biofilm particles sewage sludge reactor, feature exist
In the sequencing batch biofilm granular sludge expansion bed reactor is equipped with: water inlet, support plate, bio-carrier bed, limit plate,
Water distribution system, gas distribution system, water distributor, aerating system, the first air blower, the second air blower, the first intake pump and cyclic water outlet
Mouthful；
The water inlet is connect with the water outlet of the second intake pump, and the bio-carrier bed is arranged on the supporting plate, the biology
Carrier bed is provided with bio-carrier, the irregular dispersed placement of bio-carrier, the interval of the bio-carrier bed and limit plate
Expansion space is formed, the gas distribution system is connect with the second air blower, and on the supporting plate, the aeration is for the water distributor installation
System is connect with the first air blower, and the circulating outlet is connect with the water inlet of the first intake pump, the water distribution system and first
The water outlet of intake pump connects.
4. the wastewater treatment equipment according to claim 3 based on biofilm particles sewage sludge reactor, which is characterized in that institute
It states sequencing batch biofilm granular sludge reactor and is additionally provided with circulated aeration tank and effluent trough, the effluent trough is provided with circulating reflux
Mouthful, the head piece that is recycled back to is connect with circulated aeration tank, and the aerating system is arranged in circulated aeration tank, the cyclic water outlet
Mouth is arranged on circulated aeration tank.
5. the wastewater treatment equipment according to claim 3 based on biofilm particles sewage sludge reactor, which is characterized in that institute
The volume for stating expansion space is set as the 1/50-1/20 of 9 volume of bio-carrier bed.
6. the wastewater treatment equipment according to claim 3 based on biofilm particles sewage sludge reactor, which is characterized in that institute
Bio-carrier inner ring is stated equipped with granule sludge, outer ring is equipped with biomembrane, is equipped with divider in inner ring.
7. the wastewater treatment equipment according to claim 3 based on biofilm particles sewage sludge reactor, which is characterized in that institute
It states bio-carrier and 1g/cm is less than using density3, specific surface area be greater than 500m2/m3And porosity is between 60% and 85%
Hollow particle filler.
8. the wastewater treatment equipment according to claim 3 based on biofilm particles sewage sludge reactor, which is characterized in that institute
It states support plate and uses porous plate, be uniformly distributed setting water distributor on the through-hole of the support plate, waste water is after water distributor along water flow
Vertical sectional uniform is distributed and passes through biofilm particles sludge reaction area.
9. the wastewater treatment equipment according to claim 3 based on biofilm particles sewage sludge reactor, which is characterized in that institute
Limit plate is stated using porous plate, waste water enters circulating reflux area from biofilm particles sludge reaction area through the through-hole on limit plate,
Clear size of opening on limit plate is less than the size of the bio-carrier.
10. a kind of wastewater treatment method based on biofilm particles sewage sludge reactor, which is characterized in that include the following steps:
S1: pretreatment: production waste water carries out water quality and quantity subsequently into conditioning tank by grid pond, setting pot removal impurity
Well-balanced adjustment；
S2: coagulating kinetics: coagulant is added when passing through first pipe mixer in waste water after pretreatment, by the second pipe
Flocculant is added when road mixer, and is mixed, carries out coagulating into coagulative precipitation tank, waste water is mixed after coagulating
Mud-water separation is generated in solidifying sedimentation basin, supernatant is extracted and enters the first intermediate pool；
S3: nutritive salt is added in the first intermediate pool, and adjusts pH value with lye, acid solution, waste water enters biofilm particles
Sewage sludge reactor carries out biochemical oxidation processing:
The waste water of S31: the first intermediate pool enters circulated aeration tank, while starting the first intake pump, useless in circulated aeration tank
Water is transported to water distribution system through the first intake pump, into biofilm particles sewage sludge reactor, when biofilm particles sewage sludge reactor
Stop water inlet after reaching the water level of setting full of waste water in waste water and circulated aeration tank；
S32: after the completion of water inlet, start the first air blower, the waste water in circulated aeration tank is aerated by aerating system, is followed
Waste water in ring aeration tank is transported to the water distribution gas distribution area of biofilm particles sewage sludge reactor, and then waste water enters bio-carrier bed
Biochemical oxidation processing is carried out, subsequently into circulating reflux area, the waste water in circulating reflux area is followed by being recycled back to head piece entrance
Ring aeration tank；During wastewater treatment, the waste water in circulated aeration tank passes sequentially through biofilm particles sewage sludge reactor
Water distribution gas distribution area, biofilm particles sludge reaction area and circulating reflux area, carry out the circular treatment of waste water；
S33: in the circular treatment of waste water, stop supplying a period of time to circulated aeration tank, waste water carries out under anaerobic condition
Circular treatment；After carrying out circular treatment for a period of time, stop the first intake pump and the operation of the first air blower, by discharge outlet by one
Reactor is discharged in certainty ratio waste water, returns to step S31；
S4: backwashing bio-carrier by the second air blower and gas distribution system, will be backwashed by backwash discharge outlet
Reactor is discharged in waste water afterwards, and is transported to conditioning tank, and carries out coagulating kinetics together by pretreated waste water.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910701371.5A CN110407410B (en) | 2019-07-31 | Wastewater treatment device and method based on biomembrane particle sludge reactor | |
| PCT/CN2019/124745 WO2021017367A1 (en) | 2019-07-31 | 2019-12-12 | Wastewater treatment device based on biological film granular sludge reactor, and method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910701371.5A CN110407410B (en) | 2019-07-31 | Wastewater treatment device and method based on biomembrane particle sludge reactor |
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| CN110407410A true CN110407410A (en) | 2019-11-05 |
| CN110407410B CN110407410B (en) | 2024-04-26 |
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| WO2021017366A1 (en) * | 2019-07-31 | 2021-02-04 | 华南理工大学 | Advanced wastewater treatment device based on ozone reactor and biomembrane granular sludge reactor |
| WO2021017367A1 (en) * | 2019-07-31 | 2021-02-04 | 华南理工大学 | Wastewater treatment device based on biological film granular sludge reactor, and method therefor |
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| WO2021017367A1 (en) | 2021-02-04 |
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