CN108394997A - A kind of advanced treatment method for carbonization wastewater - Google Patents
A kind of advanced treatment method for carbonization wastewater Download PDFInfo
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- CN108394997A CN108394997A CN201810467762.0A CN201810467762A CN108394997A CN 108394997 A CN108394997 A CN 108394997A CN 201810467762 A CN201810467762 A CN 201810467762A CN 108394997 A CN108394997 A CN 108394997A
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- anoxic zone
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- 239000002351 wastewater Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000003763 carbonization Methods 0.000 title claims abstract description 13
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims abstract description 95
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000010802 sludge Substances 0.000 claims abstract description 37
- 238000005192 partition Methods 0.000 claims abstract description 19
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000010992 reflux Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 15
- 238000005273 aeration Methods 0.000 claims description 12
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 238000005276 aerator Methods 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 229910021529 ammonia Inorganic materials 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000006213 oxygenation reaction Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000005842 biochemical reaction Methods 0.000 claims description 2
- 238000006065 biodegradation reaction Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000004939 coking Methods 0.000 abstract description 20
- 239000012528 membrane Substances 0.000 abstract description 6
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010612 desalination reaction Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000012267 brine Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- 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
Abstract
The present invention discloses a kind of advanced treatment method for carbonization wastewater, belong to Treatment of Coking Effluent field, it includes preposition anoxic zone, the aerobic zones MBBR, active sludge aerobic area, postposition anoxic zone and postposition aerobic zone, wherein, preposition anoxic zone is located at the side of device longer sides, and impeller is provided in preposition anoxic zone；The aerobic zones MBBR are communicated with preposition anoxic zone by the first half rectangle water hole hole of one end of partition wall；Active sludge aerobic area is with the aerobic zones MBBR by being communicated by the round water hole hole of water submerged on partition wall；Postposition anoxic zone is communicated with active sludge aerobic area by the rectangle water hole hole of one end of partition wall；Postposition aerobic zone is communicated with postposition anoxic zone by the rectangle water hole hole of one end of partition wall.The present invention overcomes prior art defect not sufficiently effective in terms of COD, ammonia nitrogen and TN in depth degradation coking wastewater, can be applied to there is the deep biochemical before the bi-membrane method coking wastewater desalination of " zero " emission request to handle.
Description
Technical field
The present invention relates to a kind of advanced treatment method for carbonization wastewater, belong to Treatment of Coking Effluent field.
Background technology
Coking wastewater be coking, coal gas in the high temperature retort, purification and by-product recycling process, generate containing volatile phenol,
The industrial wastewater of the heterocyclic compounds such as polycyclic aromatic hydrocarbon and oxygen, sulphur, nitrogen is a kind of high CODcr, high phenol value, high ammonia nitrogen and is difficult place
A kind of industrial organic waste water of reason.Coking wastewater is the industrial wastewater containing a large amount of persistent organic pollutants, complicated component,
Containing poisonous and harmful substances such as a large amount of phenol, cyanogen, benzene, ammonia nitrogens, the coking wastewater of discharge beyond standards causes serious pollution to environment.
Coking wastewater have water quality and quantity change greatly, complicated component, organic matter especially hardly degraded organic substance content is high, ammonia nitrogen concentration height
The features such as.
Coking waste water treatment process route acts on the three-stage processing work of (pretreatment+biochemical treatment+advanced treating) substantially
Skill.Pretreatment workshop section includes oil removal, air supporting, precipitation etc., and main purpose is removal oil emulsion and SS and colloidal state COD.Coking wastewater
Biochemical treatment workshop section can select A/0, AAO, SBR, oxidation ditch, water outlet that can reach state substantially according to water quality and place situation
Family or local discharge standard, COD, ammonia nitrogen mass concentration can generally be down to 120 mg/l and 30 mg/L, but apart from as cycle
It supplements water and requires also have a certain distance, advanced treating need to be carried out
Because the biochemical water quality index for influencing waste water recycling mainly also has COD, ammonia nitrogen and TN etc., according to GB50050-2007《Work
Industry Design of Circulation Cooling Water Treatment specification》Regulation, recycle-water is as cycle supplement water COD, the Con trolling index difference of ammonia nitrogen and TDS
For 30mg/L, 5 mg/L and 1000mg/L；Three-stage treatment process of the waste water by pretreatment, biochemical treatment and advanced treating
After processing, brine waste bi-membrane method (i.e. ultrafiltration and reverse osmosis) desalting processing system could be entered；But it should be noted that anti-
Permeable membrane should strictly control influent COD, BOD and ammonia nitrogen concentration as a kind of polymeric membrane, and BOD and ammonia nitrogen concentration are higher easy
Cause growth of the microorganism on film.According to operating experience, when the feedwater quality concentration of brine waste COD and ammonia nitrogen is more than 60
When mg/l and 15 mg/l, the operation of system can be seriously affected；Because waste water is after the secondary biochemical treatment of front, biochemical change
Difference, B/C values are generally less than 0.2, and deep biochemical processing needs to use more efficient biomembrane process.
MBBR biomembranes have both the advantages of both conventional fluidization bed and biological contact oxidation process, are a kind of new and effective dirts
Method for treating water makes suspending carrier be in fluidized state, and then is formed by the castering action of aeration and flow in aeration tank
The activated sludge of suspension growth and the biomembrane of apposition growth.
MBBR techniques are because microbial biomass is big on its suspending carrier and microorganism species are abundant, it is ensured that in certain coking wastewaters
Ammonia nitrogen and part are further removed compared with the COD of bio-refractory；And have larger advantage in terms of occupation of land, but single use
Traditional MBBR biomembrane process is used for the useless of the trade effluent of certain high ammonia nitrogens, high TN and low TP, especially some high ammonia nitrogens
Water, by its tradition MBBR design structure operation nitrification and denitrification mode and function can not meet its be discharged COD, ammonia nitrogen and
The requirement of TN needs to be improved its structure, to meet certain coking wastewater influent ammonia nitrogens and the increased need of TN load capacities
It wants.
Invention content
The purpose of the present invention is the deficiencies for existing traditional advanced treatment method for carbonization wastewater, overcome existing traditional
Technology defect not sufficiently effective in terms of COD, ammonia nitrogen and TN in depth degradation coking wastewater is provided at a kind of coking wastewater deep
Reason method can be applied to there is the deep biochemical before the bi-membrane method coking wastewater desalination of " zero " emission request to handle.
Technical solution of the invention is：
A kind of advanced treatment method for carbonization wastewater comprising preposition anoxic zone, the aerobic zones MBBR, active sludge aerobic area, postposition
Anoxic zone and postposition aerobic zone, wherein preposition anoxic zone is located at the side of longer sides, and impeller is provided in preposition anoxic zone；
The aerobic zones MBBR are communicated with preposition anoxic zone by the first half rectangle water hole hole of one end of partition wall, are thrown in the aerobic zones MBBR
Added with suspending carrier and its bottom, boring aeration pipe is set；Active sludge aerobic area is with the aerobic zones MBBR by being located at quilt on partition wall
The round water hole hole of water submerged communicates, reflux pump in the bottom setting micro-hole aerator and nitrification liquid of the aerobic zones MBBR；Postposition
Anoxic zone is communicated with active sludge aerobic area by the rectangle water hole hole of one end of partition wall, the setting stirring of postposition anoxic zone
Device；Postposition aerobic zone is communicated with postposition anoxic zone by the rectangle water hole hole of one end of partition wall, and bottom is arranged in postposition aerobic zone
Micro-hole aerator is arranged in portion.
As one of preferred embodiment of the present invention, the aerobic zones MBBR water intake end side walls top is provided with
Water channel is crossed in the areas MBBR.
As one of preferred embodiment of the present invention, the areas MBBR on the aerobic zones MBBR water intake end side walls top
It crosses water channel and enters water water distributing trough followed by the areas MBBR are provided with.
As one of preferred embodiment of the present invention, it is useful that the aerobic zones MBBR are discharged side walls top setting
Roller sieve in the aerobic zones blocking suspending carrier outflow MBBR.
As one of preferred embodiment of the present invention, it is provided at one jiao of the active sludge aerobic area for nitrifying
Liquid is back to the interior reflux canal of preposition anoxic zone.
As one of preferred embodiment of the present invention, the postposition aerobic zone is discharged at one jiao and is provided with for being discharged
Overflow outlet canal.
The present invention has following technology advantageous effect：
1) due to having added efficient suspending carrier in the aerobic zones MBBR, reduce the required volume of aerobic denitrification, in turn
The volume that preposition anoxic zone can be expanded in the case where total occupation of land is constant, enhances Prepositive denitrification to by front secondary biochemical
It is discharged the removal of nitrate nitrogen in a large amount of coking wastewaters brought into.
2) certain density NO has been contained in water inlet when due to coking wastewater deep treatment3 -- N and lack can biology
The COD of degradation, so, the preposition anoxic zones MBBR and the anoxic zones postposition MBBR can according to effluent quality in total nitrogen requirement and
The concentration of biodegradable COD removes total nitrogen to adding additional carbon in the areas Liang Ge for denitrification in water inlet；In addition, deep
BOD concentration when degree processing in water inlet is too low, and microorganism growth and suspending carrier biofilm acquire a certain degree of difficulty, in preposition MBBR anoxics
Area add carbon source be also beneficial to microorganism be grown on the suspending carrier of the aerobic zones MBBR quickly start growth and biofilm.
3) aerobic zones MBBR water intake end side walls top, which is provided with angle top and is provided with the areas MBBR, crosses water channel, the areas MBBR mistake
Water channel enters water water distributing trough followed by the areas MBBR are provided with, and the areas MBBR cross water channel part and do not carry out water distribution to the aerobic zones MBBR, and
Only the areas MBBR enter water water distributing trough to the uniform water distribution in the aerobic zones MBBR, reduce the generation into the short flow phenomenon of water, also reach
To MBBR aerobic tanks uniform water distribution and the purpose of cross sectional flow rate is reduced, and then blocks suspending carrier congestion in roller sieve
On.
4) aeration intensity in active sludge aerobic area is less than the aerobic zones MBBR, and preposition lack is taken in less nitrification liquid reflux to
The dissolved oxygen in oxygen area, more conducively Prepositive denitrification remove TN.
5) setting in rear-mounted denitrification area and postposition aerobic zone enhances removal of the method for the present invention to TN, it is ensured that
Denitrification denitrogenation effect and water outlet TN, dissolved oxygen are met the requirements.
6) setting of reflux canal and overflow outlet canal completes interior reflux with can easily making the method low energy consumption of the present invention in
With water diversion system function.
Description of the drawings
Fig. 1 is the planar structure schematic diagram of the present invention.
Fig. 2 is the A-A sectional views of the planar structure schematic diagram of the present invention.
Fig. 3 is the B-B sectional views of the planar structure schematic diagram of the present invention.
Fig. 4 is the C-C sectional views of the planar structure schematic diagram of the present invention.
Wherein：1, preposition anoxic zone, 2, the aerobic zones MBBR, 3, active sludge aerobic area, 4, postposition anoxic zone, 5, postposition it is good
Oxygen area, 6, impeller, 7, the areas MBBR cross water channel, 8, the areas MBBR enter water water distributing trough, 9, boring aeration pipe, 10, suspending carrier, 11,
Roller sieve, 12, micro-hole aerator, 13, reflux pump in nitrification liquid, 14, interior reflux canal, 15, blender, 16, overflow outlet canal.
Specific implementation mode
The present invention is further illustrated with example below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4.
A kind of advanced treatment method for carbonization wastewater comprising preposition anoxic zone 1, the aerobic zones MBBR 2, active sludge aerobic area
3, postposition anoxic zone 4 and postposition aerobic zone 5, wherein preposition anoxic zone 1 is located at the side of longer sides, is arranged in preposition anoxic zone 1
There is impeller 6；The aerobic zones MBBR 2 are communicated with preposition anoxic zone 1 by the first half rectangle water hole hole of one end of partition wall,
Suspending carrier 10 has been added in the aerobic zones MBBR 2 and boring aeration pipe 9 is arranged in its bottom；Active sludge aerobic area 3 and MBBR is good
By being communicated by the round water hole hole of water submerged on partition wall, micro-hole aerator is arranged in the bottom of the aerobic zones MBBR 2 in oxygen area 2
12 and nitrification liquid in reflux pump 13；The rectangle water hole that postposition anoxic zone 4 passes through one end of partition wall with active sludge aerobic area 3
Hole communicates, and blender 15 is arranged in postposition anoxic zone 4；The rectangle that postposition aerobic zone 5 passes through one end of partition wall with postposition anoxic zone 4
Water hole hole communicates, and postposition aerobic zone 4 is arranged bottom and micro-hole aerator 12 is arranged.
2 water intake end side walls top of the above-mentioned aerobic zones MBBR is provided with the areas MBBR and crosses water channel 7；The above-mentioned aerobic zones MBBR 2 enter
The areas MBBR on water end (W.E.) side walls top cross water channel 7 and enter water water distributing trough 8 followed by the areas MBBR are provided with, and 7, water channel is crossed in the areas MBBR
Divide and water distribution is not carried out to the aerobic zones MBBR 2, and the only areas MBBR enter water water distributing trough 8 to the uniform water distribution in the aerobic zones MBBR, reduce
The generation of the short flow phenomenon of water inlet.
The above-mentioned aerobic zones MBBR 2 are discharged a side walls top and are provided with for stopping that suspending carrier 10 flows out the aerobic zones MBBR
2 roller sieve 11, suspending carrier 10, which is intercepted in the aerobic zones MBBR 2, persistently generates biomembrane, and muddy water can continuously flow into rolling
Shaft screen net 11 simultaneously enters active sludge aerobic area 3 by the circular hole on partition wall.
The interior reflux that preposition anoxic zone 1 is back to for nitrification liquid is provided at 3 one jiaos of above-mentioned active sludge aerobic area
Nitrification liquid is promoted to interior reflux canal 14, is then flowed into from interior reflux canal 14 by canal 14, the interior reflux pump 13 in active sludge aerobic area 3
Preposition anoxic zone 1.
Above-mentioned postposition aerobic zone 5 is discharged the overflow outlet canal 16 being provided at one jiao for water outlet, and muddy water is aerobic from postposition
5 overflow of area flows out this system to overflow outlet canal 16, from overflow outlet canal 16.
The present invention workflow be：
1）Before waiting for that the waste water of advanced treating flows into the present invention by water inlet line respectively by water inlet line and sludge sludge
Anoxic zone is set, is mixed with the nitrification liquid to come from the reflux of active sludge aerobic area in anoxic zone, by the second stage of biochemical treatment
The NO brought into water outlet3 -- the N and NO to come from the reflux of active sludge aerobic area3 -- N denitrifications remove, and such as need lovely preposition
NO is added in anoxic zone3 -Carbon source needed for-N denitrifications.
2）Muddy water after preposition anoxic zone biochemical reaction flows through the setting of the aerobic zones MBBR water intake end side walls top
Water channel is crossed in the areas MBBR, enters water water distributing trough flowing to the areas MBBR for crossing water channel immediately in the areas MBBR；In order to reduce the short stream into water
The generation of phenomenon, the areas MBBR cross water channel part and do not carry out water distribution to the aerobic zones MBBR, and only the areas MBBR enter water water distributing trough pair
The uniform water distribution in the aerobic zones MBBR.
3）Under the action of bottom perforated aeration tube, muddy water and suspending carrier in the aerobic zones MBBR be sufficiently mixed and
Fluidisation further completes removal and the Ammonia Nitrification reaction of the biodegradable COD of remainder in the rear aerobic areas MBBR；It suspends
Carrier persistently generates biomembrane by the interception of roller sieve in the aerobic zones MBBR, and muddy water flows into rotary screen after the reaction of the aerobic zones MBBR
Net, and active sludge aerobic area is entered by the round water hole hole on partition wall；In addition, the interior reflux in active sludge aerobic area
Pump promotes nitrification liquid to interior reflux canal, and then flowing into preposition anoxic zone from interior reflux canal carries out denitrification removal TN.
4）It is flowed into the muddy water in active sludge aerobic area further biodegradation COD and ammonia under micro-hole aerator oxygenation
Nitrogen, the aeration intensity in active sludge aerobic area are less than the aerobic zones MBBR, and the molten of preposition anoxic zone is taken in less nitrification liquid reflux to
Oxygen is solved, the muddy water after reaction flows to postposition anoxic zone；Additional carbon can be added in postposition anoxic zone, into one under blender mixing
It walks denitrification and removes TN；Muddy water after rear-mounted denitrification flows into postposition aerobic zone, and further oxygenation and removal postposition anoxic zone are residual
The additional carbon stayed, the muddy water after reaction flow out this system from the overflow of postposition aerobic zone to overflow outlet canal from overflow outlet canal.
Example one：
Shandong Coking Plant Wastewater advanced treating engineering, it is 2400m3/ days to need the wastewater flow rate of advanced treating, into the present invention
Enter a concentration of 20mg/L of water COD a concentration of 130mg/L, BOD a concentration of 20mg/L, NH4-N, TN 100mg/L, TP be
0.3mg/L, belongs to by the pretreated high ammonia nitrogen of front traditional active sludge biochemical process and TN and the coking of low COD is useless
Water.Using the present invention, the cylindrical type suspending carrier feature of addition is：Material is HDPE, proportion 0.96g/cm3, a diameter of
25mm, high 10mm, porosity of=83%, bulk density >=100kg/m3, effective ratio area >=500 ㎡/m3；The roller of use
Sieve has the measure that anti-filler blocks in its vicinity, ensures that suspending carrier is not accumulated on its cross-section of river；The engineering
The aerobic zones MBBR remove COD and ammonia nitrogen in water inlet for aerobic denitrification, are provided with boring aeration pipe in area, are inside equipped with 35%
The basin's effective volume of the suspending carrier of filling rate, the aerobic zones diameter 25mm, MBBR of filler is 540m3, HRT 5.4h, is suspended
The dosage of carrier is 189m3, starts the initial stage started after Facilities Construction completion, is fast culture acclimation sludge, biomembrane
The ability of COD is removed with system of solving, inflow is larger, and the overload operation in this stage can also investigate the startup rapidity of facility
And impact resistance, two weeks of facility startup, COD removal rates stably reached 45%；Facility starts the reinforcing of biomembrane after about four weeks
It is basically completed, so the operating parameters such as dissolved oxygen, PH by controlling the aerobic zones MBBR, the nitrification of biomembrane protrude, two
After a month, ammonia nitrogen, which is presented, stablizes rapid decrease trend, and ammonia nitrogen satisfaction water outlet is discharged after four months and is required, that is, and the BOD being discharged≤
10mg/L is discharged COD≤50mg/L, NH3-N≤1mg/L, TN≤15mg/L, meets and enters brine waste bi-membrane method (i.e. ultrafiltration
With it is reverse osmosis) requirement of the influent quality of desalting processing system.
It should be noted that any equivalent way under the guidance of this specification made by those skilled in the art, or
Obvious variant should all be within the scope of the present invention.
Claims (6)
1. a kind of advanced treatment method for carbonization wastewater, which is characterized in that it includes preposition anoxic zone, the aerobic zones MBBR, activity dirt
Mud aerobic zone, postposition anoxic zone and postposition aerobic zone；Preposition anoxic zone is located at the side of longer sides, is provided in preposition anoxic zone
Impeller；The aerobic zones MBBR are communicated with preposition anoxic zone by the first half rectangle water hole hole of one end of partition wall, and MBBR is good
Suspending carrier has been added in oxygen area and boring aeration pipe is arranged in its bottom；Active sludge aerobic area is with the aerobic zones MBBR by being located at
It is communicated by the round water hole hole of water submerged on partition wall, reflux in the bottom setting micro-hole aerator and nitrification liquid of the aerobic zones MBBR
Pump；Postposition anoxic zone is communicated with active sludge aerobic area by the rectangle water hole hole of one end of partition wall, and postposition anoxic zone is set
Set blender；Postposition aerobic zone is communicated with postposition anoxic zone by the rectangle water hole hole of one end of partition wall, postposition aerobic zone
Bottom is set, micro-hole aerator is set；
It the described method comprises the following steps：
1）Before waiting for that the waste water of advanced treating flows into the present invention by water inlet line respectively by water inlet line and sludge sludge
Anoxic zone is set, is mixed with the nitrification liquid to come from the reflux of active sludge aerobic area in anoxic zone, by the second stage of biochemical treatment
The NO brought into water outlet3 -- the N and NO to come from the reflux of active sludge aerobic area3 -- N denitrifications remove, and such as need lovely preposition
NO is added in anoxic zone3 -Carbon source needed for-N denitrifications；
2）Muddy water after preposition anoxic zone biochemical reaction flows through the areas MBBR of the aerobic zones MBBR water intake end side walls top setting
Water channel is crossed, enters water water distributing trough flowing to the areas MBBR for crossing water channel immediately in the areas MBBR；In order to reduce into the short flow phenomenon of water
Occur, the areas MBBR cross water channel part and do not carry out water distribution to the aerobic zones MBBR, and only to enter water water distributing trough aerobic to MBBR in the areas MBBR
The uniform water distribution in area；
3）Under the action of bottom perforated aeration tube, muddy water and suspending carrier in the aerobic zones MBBR are sufficiently mixed and flow
Change, removal and the Ammonia Nitrification reaction of the biodegradable COD of remainder are further completed in the rear aerobic areas MBBR；It suspends and carries
Body persistently generates biomembrane by the interception of roller sieve in the aerobic zones MBBR, and muddy water flows into rotary screen after the reaction of the aerobic zones MBBR
Net, and active sludge aerobic area is entered by the round water hole hole on partition wall；In addition, the interior reflux in active sludge aerobic area
Pump promotes nitrification liquid to interior reflux canal, and then flowing into preposition anoxic zone from interior reflux canal carries out denitrification removal TN；
4）It is flowed into muddy water further biodegradation COD and ammonia nitrogen, work under micro-hole aerator oxygenation in active sludge aerobic area
Property aerobic sludge zone aeration intensity be less than the aerobic zones MBBR, the dissolved oxygen of preposition anoxic zone is taken in less nitrification liquid reflux to,
Muddy water after reaction flows to postposition anoxic zone；Additional carbon can be added in postposition anoxic zone, it is further anti-under blender mixing
Nitrification removal TN；Muddy water after rear-mounted denitrification flows into postposition aerobic zone, and further oxygenation and removal postposition anoxic zone are remaining
Additional carbon, the muddy water after reaction flow out this system from the overflow of postposition aerobic zone to overflow outlet canal from overflow outlet canal.
2. advanced treatment method for carbonization wastewater according to claim 1, which is characterized in that the aerobic zones the MBBR water intake end side
Wall top is provided with the areas MBBR and crosses water channel.
3. advanced treatment method for carbonization wastewater according to claim 1, which is characterized in that the aerobic zones the MBBR water intake end side
The areas MBBR on wall top cross water channel and enter water water distributing trough followed by the areas MBBR are provided with.
4. advanced treatment method for carbonization wastewater according to claim 1, which is characterized in that the aerobic zones MBBR are discharged side
Wall top is provided with the roller sieve for stopping the aerobic zones suspending carrier outflow MBBR.
5. advanced treatment method for carbonization wastewater according to claim 1, which is characterized in that one jiao of the active sludge aerobic area
Place is provided with the interior reflux canal that preposition anoxic zone is back to for nitrification liquid.
6. advanced treatment method for carbonization wastewater according to claim 1, which is characterized in that the postposition aerobic zone is discharged one jiao
Place is provided with the overflow outlet canal for water outlet.
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