CN107311410A - A kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor - Google Patents
A kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor Download PDFInfo
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- CN107311410A CN107311410A CN201710755609.3A CN201710755609A CN107311410A CN 107311410 A CN107311410 A CN 107311410A CN 201710755609 A CN201710755609 A CN 201710755609A CN 107311410 A CN107311410 A CN 107311410A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000002351 wastewater Substances 0.000 claims abstract description 53
- 238000001179 sorption measurement Methods 0.000 claims abstract description 49
- 238000002156 mixing Methods 0.000 claims abstract description 44
- 238000005273 aeration Methods 0.000 claims abstract description 43
- 238000000151 deposition Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000005352 clarification Methods 0.000 claims abstract description 23
- 238000004062 sedimentation Methods 0.000 claims abstract description 23
- 239000010865 sewage Substances 0.000 claims abstract description 16
- 238000000746 purification Methods 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 41
- 239000003463 adsorbent Substances 0.000 claims description 37
- 229940118199 levulan Drugs 0.000 claims description 27
- 238000002425 crystallisation Methods 0.000 claims description 25
- 230000008025 crystallization Effects 0.000 claims description 25
- 239000010802 sludge Substances 0.000 claims description 23
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 20
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 20
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 20
- 239000012071 phase Substances 0.000 claims description 17
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 15
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 15
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 claims description 15
- 235000011180 diphosphates Nutrition 0.000 claims description 15
- 235000010413 sodium alginate Nutrition 0.000 claims description 15
- 239000000661 sodium alginate Substances 0.000 claims description 15
- 229940005550 sodium alginate Drugs 0.000 claims description 15
- 238000001704 evaporation Methods 0.000 claims description 10
- 230000008020 evaporation Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 10
- ZGXJTSGNIOSYLO-UHFFFAOYSA-N 88755TAZ87 Chemical compound NCC(=O)CCC(O)=O ZGXJTSGNIOSYLO-UHFFFAOYSA-N 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 5
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 238000004821 distillation Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000006396 nitration reaction Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- 238000005191 phase separation Methods 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 20
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 9
- 229910052698 phosphorus Inorganic materials 0.000 description 9
- 239000011574 phosphorus Substances 0.000 description 9
- 238000009395 breeding Methods 0.000 description 8
- 230000001488 breeding effect Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 238000009826 distribution Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 244000131316 Panax pseudoginseng Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000003403 water pollutant 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/303—Nitrification and denitrification treatment characterised by the nitrification
-
- 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
Abstract
The invention discloses a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor, including collecting-tank, the water inlet connection waste outlet of the collecting-tank, collecting-tank is sequentially provided with along purification of waste water direction, adsorption tank, sedimentation basin, mixing pit, it is aerated aerobic clarification system, clear water reserviors, the first waste water lifting pump is provided between collecting-tank and adsorption tank, the second waste water lifting pump is provided between mixing pit and the aerobic clarification system of the aeration, sedimentation basin bottom connects sludge-tank, being aerated aerobic clarification system includes Aerobic three-phase separator and aeration depositing reservoir, Aerobic three-phase separator is in aeration depositing reservoir, adsorption tank is connected by mud return line, it is aerated depositing reservoir bottom and is provided with aeration flexible pipe, aeration flexible pipe passes through tracheae connecting fan, tracheae is provided with the first automatically controlled flow valve.The present invention greatly simplify technological process, saves the floor space of sewage treatment facility about 1/3rd, reduces pipeline investment, while operational management is convenient, control is simple.
Description
Technical field
The invention belongs to technical field of sewage, more particularly to a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio
Reactor.
Background technology
Traditional activated sludge process is a kind of dirty water living creature processing technique of relative maturity, in aerobic activated sludge biological treatment
In system, the factor played a crucial role mainly sludge concentration（The amount of microorganism）, dissolved oxygen efficiency（Bioactivity）With precipitation effect
Rate（Mud-water separation effect）, that is to say, that traditional aerobic activated sludge process can be related to the contact of gas, liquid, solid three-phase with separating
Problem.In traditional type sewage treatment process, aeration and biological oxidation process are to carry out simultaneously, but are separated with precipitation process,
Aerating oxidation is among different pond bodies from precipitation.In order to ensure the sludge concentration in aeration tank, it is necessary to substantial amounts of backflow two
Sludge in heavy pond, in the process, can expend the substantial amounts of energy, further, since the growing environment of microorganism is continually changing, it is raw
Thing activity reduction, is unfavorable for the progress of bio-degradation reactions.
Biological denitrificaion is that ammonia nitrogen is changed into nitrite nitrogen and nitrate nitrogen by nitrification, is made by denitrification
Nitrogen is reduced into by nitrate nitrogen and nitrite nitrogen.Traditional denitrification process is by nitration section and independent, the work of denitrification section
Skill long flow path, floor space is big, and impact resistance is weak and operating cost is high.
The content of the invention
To solve the shortcoming and defect of prior art, the purpose of the present invention is to use special aeration control mode and water distribution
Technology, each operational factor of reasonable control system suppresses the activity of nitrite-oxidizing bacteria, by reaction controlling in short distance nitre
The change stage, while the dissolved oxygen concentration in control system, occurs synchronous short-cut nitrification and denitrification reaction, save the reaction time, account for
Ground area and operating cost.
To achieve the above object, the technical solution adopted in the present invention is：A kind of Short-range efficient simultaneous denitrification interior circulation collection
Into bioreactor, including collecting-tank, adsorption tank, sedimentation basin, sludge-tank, mixing pit, clear water reserviors and aeration-aerobic clarification system
System, the water inlet connection waste outlet of the collecting-tank, collecting-tank, adsorption tank, precipitation are sequentially provided with along purification of waste water direction
Pond, mixing pit, aeration-aerobic clarification system, clear water reserviors, are provided with the first waste water lifting pump between the collecting-tank and adsorption tank,
The second waste water lifting pump is provided between the mixing pit and the aeration-aerobic clarification system, the sedimentation basin bottom connection is described
Sludge-tank, the aeration-aerobic clarification system includes Aerobic three-phase separator and aeration depositing reservoir, the Aerobic three-phase separator
In aeration depositing reservoir, the Aerobic three-phase separator connects the adsorption tank, the aeration clarification by mud return line
Bottom of pond portion is provided with aeration flexible pipe, and the aeration flexible pipe is provided with stomata, and the aeration flexible pipe passes through tracheae connecting fan, the gas
Pipe is provided with the first automatically controlled flow valve.
Further, the clear water reserviors connect the mixing pit by effluent recycling pipe.
Further, it is equipped with the second automatically controlled flow valve on the mud return line and the effluent recycling pipe.
Further, DO concentration testers, the detection of the DO concentration testers are installed at the top of the aeration depositing reservoir
Head is stretched into inside aeration depositing reservoir.
Further, it is provided with above the adsorption tank in adsorbent box, the adsorbent box and places adsorbent.
Further, the mixing pit and the adsorption tank bottom are equipped with wearing in perforated pipe, mixing pit and adsorption tank
Kong Guanjun is separately installed with the first automatically controlled flow by tracheae connecting fan on the tracheae between blower fan and mixing pit, adsorption tank
Valve.
Further, a length of 150~250mm of the adsorption tank, a width of 100~200mm, a height of 200~300mm；Institute
State a length of 200~250mm of sedimentation basin, a width of 150~250mm, a height of 200~300mm；It is described to be aerated a length of of depositing reservoir
900~1500mm, a width of 500~600mm, height >=1000mm；A length of 500~700mm of the three phase separator, a width of 400
~600mm, high 500~700mm.
Further, it is additionally provided with spinner flowmeter on the collecting-tank and pipeline between adsorption tank.
Present invention also offers the sewage disposal using above-mentioned Short-range efficient simultaneous denitrification interior circulation integrated bio reactor
Method, its step is, first collects raw wastewater in collecting-tank, by the first waste water lifting pump with certain flow by waste water pump
Enter adsorption tank；The returned sludge for coming from the Aerobic three-phase separator retention is received in adsorption tank, reflux ratio is 1~3:1,
Adsorption tank is carried out with adsorbent in Adsorption sewage after a part of organic matter, and a small amount of band from adsorption tank is precipitated by sedimentation basin
The sludge gone out, sludge is discharged into sludge-tank；The water outlet of sedimentation basin is carried out with the water outlet of aeration-aerobic clarification system in mixing pit
Mixing, the water outlet to sedimentation basin carries out vast scale dilution, and the effluent recycling ratio of aeration-aerobic clarification system is 10~30:1；
The water outlet of mixing pit is pumped into aeration-aerobic clarification system by the second waste water lifting pump, realized in Aerobic three-phase separator it is solid,
Liquid, gas three phase separation, liquid phase, which enters in aeration depositing reservoir, aeration depositing reservoir, is passed through air, and by adjusting the DO concentration of waste water
And hydraulic detention time, complete the synchronous short distance nitration denitrification process of high ammonia-nitrogen wastewater；Enter clear water reserviors after the completion of wastewater treatment,
A part is returned in mixing pit according to effluent recycling ratio, another part discharge.
Further, the adsorbent is HEC-levulan compound adsorbent, using HEC (hydroxyethyl cellulose) and fruit
Glycan is composited, and is the step of its specific preparation method：
(1) pyrophosphate is dissolved in water, is configured to the solution that pyrophosphate concentration is 5~10mol/L；
(2) HEC is dissolved in pyrophosphate solution under ultrasonic environment, is configured to HEC in solution A, the solution A
Concentration is 1~5mol/L；
(3) sodium alginate is dissolved in water, is configured to the solution that concentration is 0.5~1mol/L；
(4) to sodium alginate soln water bath with thermostatic control, bath temperature be 60~80 DEG C insulation, then by levulan by solid-to-liquid ratio 1~
2:10 ratio is added in sodium alginate soln, and is sufficiently stirred for, and is configured to B solution；
(5) it is the mass mixings such as above-mentioned solution A and B solution is uniform, more than 10h is stood after mixing under 60~80 DEG C of environment, it is quiet
Heating evaporation crystallization is postponed, primary crystallization thing is collected by filtration；
(6) with primary crystallization thing described in distillation water washing, secondary crystallization thing is recovered by filtration in heating evaporation crystallization, will be described secondary
Crystal is dried in the environment of 120~150 DEG C, that is, obtains the HEC-levulan compound adsorbent.
The beneficial effects of the present invention are：
(1) present invention carries out module Integrated design to functional areas such as absorption, aeration, precipitations, greatly simplify technological process, saves
The floor space of sewage treatment facility about 1/3rd has been saved, pipeline investment is reduced, while operational management is convenient, control letter
It is single.
(2) present invention uses special aeration control mode and water distribution technology, each operation ginseng of reasonable control system
Number, suppresses the activity of nitrite-oxidizing bacteria, by reaction controlling in the short distance nitration stage, while the dissolved oxygen in control system
Concentration, occurs synchronous short-cut nitrification and denitrification reaction, saves reaction time, floor space and operating cost.
(3) by designing mud return line connection aeration depositing reservoir and adsorption tank, the automatic back flow of sludge is realized, is saved
The power consumption of second pond in the prior art and sludge reflux has been saved, facility floor space, and effectively catching generation cycle is reduced
Longer microorganism, extends sludge age.Dilution technology is circulated using vast scale (to return by the water outlet for connecting clear water reserviors and mixing pit
Flow tube completes circulation dilution), realize the superelevation hydraulic load and impact load of system.
(4) bioreactor is used for using homemade adsorbent and carries out sewage disposal, replaced and traditional rely solely on backflow
The method of sludge, the COD concentration of discharge water outlet is significantly reduced, in addition, test is found, can be significantly using adsorbent of the present invention
Remove the P elements in high phosphorus sewage so that sewage disposal device of the present invention is more widely applied.
Brief description of the drawings
Fig. 1 is flow chart of the invention；
Fig. 2 is the structural representation of interior circulation integrated bio reactor of the present invention；
Fig. 3 is that method described in embodiment 1~3 and comparative example 1~3 is handled in table 1 after waste water, the control post of each pollutant concentration
Shape figure.
Embodiment
As shown in the figures 1 and 2, a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor, including collecting-tank 1, suction
Attached pond 2, sedimentation basin 3, sludge-tank 4, mixing pit 5, clear water reserviors 7 and aeration-aerobic clarification system 6.The water inlet connection of collecting-tank 1
Waste outlet, collecting-tank 1, adsorption tank 2, sedimentation basin 3, mixing pit 5, aeration-aerobic clear are sequentially provided with along purification of waste water direction
Clear system 6, clear water reserviors 7, adsorption tank 2 and sedimentation basin 3 are arranged on the platform higher than collecting-tank 1, collecting-tank 1 and adsorption tank 2 it
Between be provided with the first waste water lifting pump 8, for the waste water in collecting-tank to be pumped into adsorption tank 2, collecting-tank 1 and with adsorption tank 2 it
Between pipeline on be additionally provided with spinner flowmeter 9, the flow value for observing waste water, to adjust the work(of the first waste water lifting pump 8
Rate, the wastewater flow needed for obtaining.The second waste water lifting pump 10 is provided between mixing pit 5 and aeration-aerobic clarification system 6, is used
Waste water lifting in by mixing pit 5 is pumped into aeration-aerobic clarification system 6.The bottom of sedimentation basin 3 connects sludge-tank 3, by sedimentation basin
The sludge of bottom sediments is discharged into sludge-tank 3, is further processed.Aeration-aerobic clarification system 6 includes Aerobic three-phase separator
11 are located inside aeration depositing reservoir 12 with aeration depositing reservoir 12, Aerobic three-phase separator 11, and Aerobic three-phase separator 11 passes through dirt
Mud return duct 13 connects adsorption tank 2, and the top of aeration depositing reservoir 12 is provided with DO concentration testers 20, DO concentration testers 20
Detecting head is stretched into inside aeration depositing reservoir 12, and aeration depositing reservoir 12 bottom is provided with aeration flexible pipe 14, and aeration flexible pipe 14 is provided with gas
Hole, aeration flexible pipe 14 is by the connecting fan 16 of tracheae 15, for blasting air in aeration depositing reservoir 12, entering for regulation air
Amount, and then the DO concentration in aeration depositing reservoir is adjusted, tracheae 15 is provided with the first automatically controlled flow valve 17.Clear water reserviors 7 pass through water outlet
Return duct 18 connects mixing pit 5, and dilution technology is circulated by vast scale, and superelevation hydraulic load and the impact for realizing system are negative
Lotus.To adjust the second automatically controlled flow valve 19 is equipped with capacity of returns, mud return line 13 and effluent recycling pipe 18.The He of mixing pit 5
The bottom of adsorption tank 2 is equipped with perforated pipe 21 in perforated pipe 21, mixing pit 5 and adsorption tank 2 by the connecting fan 16 of tracheae 15,
The first automatically controlled flow valve 17 is separately installed with tracheae between blower fan 16 and mixing pit 5, adsorption tank 2, life is substantially increased
The effect of thing denitrogenation.
For ease of addition adsorbent, it is provided with the top of adsorption tank 2 in adsorbent box, the adsorbent box and places adsorbent.
A length of 200mm of the adsorption tank, a width of 150mm, a height of 250mm.A length of 220mm of the sedimentation basin, it is a width of
200mm, a height of 250mm.A length of 1100mm of the aeration tank, a width of 600mm, a height of 1500mm.The three phase separator
A length of 600mm, a width of 400mm, high 600mm.The floor space of equipment is optimized, while ensure that waste water treatment efficiency.
The invention also discloses carried out using above-mentioned Short-range efficient simultaneous denitrification interior circulation integrated bio reactor at sewage
The embodiment of reason.Due to breeding wastewater complicated component, water is big, organic concentration is high, suspension is more, ammonia nitrogen concentration is high, waterpower
Impact meets strong, therefore certain plant's sewage effluent of selection Jiangxi Poyang Lake Ecological Economic Region is used as subjects.Processing
The parameter of preceding first measurement plant waste discharge, wherein COD is about 6000mg/L, and ammonia nitrogen concentration is about 500mg/L, it is clear that be not inconsistent
Close《Poyang Lake Ecological Economic Region pollution discharge standard》.According to the standard, the scale livestock and poultry of Highly Effective development zone are supported
The COD no more than 150mg/L that water outlet is discharged in field are grown, water outlet ammonia nitrogen concentration is not more than 40mg/L.
Raw water uses the breeding wastewater of certain above-mentioned plant, and the inflow that waste water enters collecting-tank is controlled in 3L/h, waste water
Adsorption tank is entered by waste water lifting pump, HEC-levulan compound adsorbent, the addition of compound adsorbent are poured into adsorption tank
Measure as the 1/800~1/500 of wastewater quality.Waste water is about 30min in the residence time of adsorption tank；Sludge in adsorption tank is from good
The sludge settling area backflow of oxygen three phase separator, return sludge ratio is defined as 1:1 (i.e. sludge all flows back), adsorption tank water outlet is led to
Cross and enter mixing pit after sedimentation basin, a small amount of sludge of the interior precipitation of sedimentation basin enters in sludge-tank, and waste water is flowed into mixing pit and exposed
The water outlet of gas-aerobic clarification system is mixed, and Macrodilution, effluent recycling ratio are played a part of to the water inlet for being aerated depositing reservoir
Example is defined as 30:1, then the amount of inlet water for being aerated depositing reservoir is 93L/h.In process of the test, changed by spinner flowmeter and be aerated
Amount, the DO concentration in aeration tank is controlled in 0.4mg/L-0.6mg/L.
To illustrate enhancing effect of the HEC-levulan compound adsorbent to Treatment of Sludge, the present embodiment devise using HEC-
Levulan compound adsorbent and two kinds of processing modes of adsorbent are not used to carry out contrast test, it is specially：
Embodiment 1
HEC-levulan compound adsorbent is composited using HEC (hydroxyethyl cellulose) and levulan, its specific preparation method
The step of be：
(1) pyrophosphate is dissolved in water, is configured to the solution that pyrophosphate concentration is 5mol/L；
(2) HEC is dissolved in pyrophosphate solution under ultrasonic environment, is configured to HEC in solution A, the solution A
Concentration is 1mol/L；
(3) sodium alginate is dissolved in water, is configured to the solution that concentration is 0.5mol/L；
(4) to sodium alginate soln water bath with thermostatic control, bath temperature is 60 DEG C of insulations, and levulan then is pressed into solid-to-liquid ratio 1:10
Ratio is added in sodium alginate soln, and is sufficiently stirred for, and is configured to B solution；
(5) it is the mass mixings such as above-mentioned solution A and B solution is uniform, more than 10h is stood after mixing under 60~80 DEG C of environment, it is quiet
Heating evaporation crystallization is postponed, primary crystallization thing is collected by filtration；
(6) with primary crystallization thing described in distillation water washing, secondary crystallization thing is recovered by filtration in heating evaporation crystallization, will be described secondary
Crystal is dried in the environment of 120~150 DEG C, that is, obtains the HEC-levulan compound adsorbent.
By the HEC-levulan compound adsorbent according to the method for the breeding wastewater of above-mentioned processing plant to waste water
Handled, the COD, total phosphorus concentration and ammonia nitrogen concentration of water are given off after processing as shown in Table 2 and Figure 3.
Embodiment 2
HEC-levulan compound adsorbent is composited using HEC (hydroxyethyl cellulose) and levulan, its specific preparation method
The step of be：
(1) pyrophosphate is dissolved in water, is configured to the solution that pyrophosphate concentration is 8mol/L；
(2) HEC is dissolved in pyrophosphate solution under ultrasonic environment, is configured to HEC in solution A, the solution A
Concentration is 4mol/L；
(3) sodium alginate is dissolved in water, is configured to the solution that concentration is 1mol/L；
(4) to sodium alginate soln water bath with thermostatic control, bath temperature is 80 DEG C of insulations, and levulan then is pressed into solid-to-liquid ratio 2:10
Ratio is added in sodium alginate soln, and is sufficiently stirred for, and is configured to B solution；
(5) it is the mass mixings such as above-mentioned solution A and B solution is uniform, more than 10h is stood after mixing under 60~80 DEG C of environment, it is quiet
Heating evaporation crystallization is postponed, primary crystallization thing is collected by filtration；
(6) with primary crystallization thing described in distillation water washing, secondary crystallization thing is recovered by filtration in heating evaporation crystallization, will be described secondary
Crystal is dried in the environment of 120~150 DEG C, that is, obtains the HEC-levulan compound adsorbent.
By the HEC-levulan compound adsorbent according to the method for the breeding wastewater of above-mentioned processing plant to waste water
Handled, the COD, total phosphorus concentration and ammonia nitrogen concentration of water are given off after processing as shown in Table 2 and Figure 3.
Embodiment 3
HEC-levulan compound adsorbent is composited using HEC (hydroxyethyl cellulose) and levulan, its specific preparation method
The step of be：
(1) pyrophosphate is dissolved in water, is configured to the solution that pyrophosphate concentration is 10mol/L；
(2) HEC is dissolved in pyrophosphate solution under ultrasonic environment, is configured to HEC in solution A, the solution A
Concentration is 5mol/L；
(3) sodium alginate is dissolved in water, is configured to the solution that concentration is 1mol/L；
(4) to sodium alginate soln water bath with thermostatic control, bath temperature is 80 DEG C of insulations, and levulan then is pressed into solid-to-liquid ratio 2:10
Ratio is added in sodium alginate soln, and is sufficiently stirred for, and is configured to B solution；
(5) it is the mass mixings such as above-mentioned solution A and B solution is uniform, more than 10h is stood after mixing under 60~80 DEG C of environment, it is quiet
Heating evaporation crystallization is postponed, primary crystallization thing is collected by filtration；
(6) with primary crystallization thing described in distillation water washing, secondary crystallization thing is recovered by filtration in heating evaporation crystallization, will be described secondary
Crystal is dried in the environment of 120~150 DEG C, that is, obtains the HEC-levulan compound adsorbent.
By the HEC-levulan compound adsorbent according to the method for the breeding wastewater of above-mentioned processing plant to waste water
Handled, the COD, total phosphorus concentration and ammonia nitrogen concentration of water are given off after processing as shown in Table 2 and Figure 3.
Comparative example 1~3
Method according to the breeding wastewater of above-mentioned processing plant is handled waste water, and it is differed only in：Without
HEC-levulan compound adsorbent, other processing parameters are identical with for example above-mentioned processing method of step.The processing method
Independently carry out 3 times, obtain comparative example 1~3, COD, total phosphorus concentration and the ammonia nitrogen concentration such as and of table 2 of water are given off after processing
Shown in Fig. 3.
Table 1 is the untreated preceding COD of breeding wastewater, ammonia nitrogen concentration and the total phosphorus content list of certain plant：
Table 1
| Pollutant type | COD(mg/L) | Ammonia nitrogen concentration (mg/L) | Total phosphorus (mg/L) |
| Concentration | 6373.05 | 692.40 | 55.17 |
In breeding wastewater before untreated, the content of above-mentioned pollutant exceedes《Poyang Lake Ecological Economic Region water pollutant row
Put standard》, be not suitable for directly discharging.
Table 2 is that method described in embodiment 1~3 and comparative example 1~3 is handled in table 1 after waste water, the survey of each pollutant concentration
Examination value：
Table 2
| Pollutant type | COD(mg/L) | Ammonia nitrogen concentration (mg/L) | Total phosphorus (mg/L) |
| Raw wastewater | 6373.05 | 692.40 | 55.17 |
| After the processing of embodiment 1 | 72.88 | 36.31 | 1.74 |
| After the processing of embodiment 2 | 86.56 | 30.69 | 1.92 |
| After the processing of embodiment 3 | 79.91 | 29.58 | 1.02 |
| After the processing of comparative example 1 | 126.59 | 30.23 | 3.37 |
| After the processing of comparative example 2 | 122.77 | 33.65 | 3.41 |
| After the processing of comparative example 3 | 118.87 | 30.34 | 3.33 |
As shown in table 2, embodiment 1~3 is compared into discovery with comparative example 1~3, inhaled using HEC-levulan of the present invention is compound
COD value is remarkably decreased in attached dose of processing waste water, the waste water after processing, and compound adsorbent can significantly remove the phosphorus member in sewage
Element, has obvious facilitation to waste water treatment process.For ammonia nitrogen concentration, the effect of adsorbent is little, if add
Plus it is small on the ammonia nitrogen concentration influence after sewage disposal, it can ignore substantially.
Final statement：The scope of the present invention is not limited thereto, technique according to the invention scheme and its inventive concept
It is subject to equivalent substitution or change, should be all included within the scope of the present invention.
Claims (10)
1. a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor, it is characterised in that including collecting-tank, adsorption tank,
Sedimentation basin, sludge-tank, mixing pit, clear water reserviors and aeration-aerobic clarification system, the water inlet connection waste water draining of the collecting-tank
Mouthful, it is sequentially provided with collecting-tank, adsorption tank, sedimentation basin, mixing pit, aeration-aerobic clarification system, clear water along purification of waste water direction
Pond, is provided with the first waste water lifting pump, the mixing pit and the aeration-aerobic clarification system between the collecting-tank and adsorption tank
Between be provided with the second waste water lifting pump, the sedimentation basin bottom connects the sludge-tank, and the aeration-aerobic clarification system includes
Oxygen three phase separator and aeration depositing reservoir, the Aerobic three-phase separator is in aeration depositing reservoir, the aerobic three phase separation
Device connects the adsorption tank by mud return line, and the aeration depositing reservoir bottom is provided with aeration flexible pipe, the aeration flexible pipe
Provided with stomata, the aeration flexible pipe is provided with the first automatically controlled flow valve by tracheae connecting fan, the tracheae.
2. a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor according to claim 1, it is characterised in that
The clear water reserviors connect the mixing pit by effluent recycling pipe.
3. a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor according to claim 2, it is characterised in that
The second automatically controlled flow valve is equipped with the mud return line and the effluent recycling pipe.
4. a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor according to any one of claims 1 to 3, its
It is characterised by, DO concentration testers is installed at the top of the aeration depositing reservoir, the detecting head of the DO concentration testers stretches into exposure
Inside gas depositing reservoir.
5. a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor according to claim 4, it is characterised in that
It is provided with above the adsorption tank in adsorbent box, the adsorbent box and places adsorbent.
6. a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor according to any one of claims 1 to 3, its
It is characterised by, the perforated pipe that the mixing pit and the adsorption tank bottom are equipped with perforated pipe, mixing pit and adsorption tank leads to
Tracheae connecting fan is crossed, the first automatically controlled flow valve is separately installed with the tracheae between blower fan and mixing pit, adsorption tank.
7. a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor according to any one of claims 1 to 3, its
It is characterised by, a length of 150~250mm of the adsorption tank, a width of 100~200mm, a height of 200~300mm；The sedimentation basin
A length of 200~250mm, a width of 150~250mm, a height of 200~300mm；A length of the 900 of the aeration depositing reservoir~
1500mm, a width of 500~600mm, height >=1000mm；A length of 500~700mm of the three phase separator, a width of 400~
600mm, high 500~700mm.
8. a kind of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor according to any one of claims 1 to 3, its
It is characterised by, spinner flowmeter is additionally provided with the collecting-tank and pipeline between adsorption tank.
9. a kind of sewage of Short-range efficient simultaneous denitrification interior circulation integrated bio reactor as described in any one of claim 1~7
Processing method, it is characterised in that first collect raw wastewater in collecting-tank, will with certain flow by the first waste water lifting pump
Waste water is pumped into adsorption tank；Receiving the returned sludge for coming from Aerobic three-phase separator retention in adsorption tank, reflux ratio is 1~
3:1, carried out in adsorption tank with adsorbent in Adsorption sewage after a part of organic matter, precipitate a small amount of from absorption by sedimentation basin
The sludge taken out of in pond, sludge is discharged into sludge-tank；The water outlet of sedimentation basin is with the water outlet of aeration-aerobic clarification system in mixing pit
It is middle to be mixed, carry out vast scale dilution to the water outlet of sedimentation basin, the effluent recycling ratio of aeration-aerobic clarification system for 10~
30:1；The water outlet of mixing pit is pumped into aeration-aerobic clarification system by the second waste water lifting pump, real in Aerobic three-phase separator
Existing solid, liquid, gas three phase separation, liquid phase, which enters in aeration depositing reservoir, aeration depositing reservoir, is passed through air, and by adjusting the DO of waste water
Concentration and hydraulic detention time, complete the synchronous short distance nitration denitrification process of high ammonia-nitrogen wastewater；Enter after the completion of wastewater treatment clear
Pond a, part is returned in mixing pit according to effluent recycling ratio, another part discharge.
10. a kind of sewage water treatment method according to claim 9, it is characterised in that the adsorbent is HEC-levulan
Compound adsorbent, is composited using HEC (hydroxyethyl cellulose) and levulan, is the step of its specific preparation method：
(1) pyrophosphate is dissolved in water, is configured to the solution that pyrophosphate concentration is 5~10mol/L；
(2) HEC is dissolved in pyrophosphate solution under ultrasonic environment, is configured to HEC in solution A, the solution A
Concentration is 1~5mol/L；
(3) sodium alginate is dissolved in water, is configured to the solution that concentration is 0.5~1mol/L；
(4) to sodium alginate soln water bath with thermostatic control, bath temperature be 60~80 DEG C insulation, then by levulan by solid-to-liquid ratio 1~
2:10 ratio is added in sodium alginate soln, and is sufficiently stirred for, and is configured to B solution；
(5) it is the mass mixings such as above-mentioned solution A and B solution is uniform, more than 10h is stood after mixing under 60~80 DEG C of environment, it is quiet
Heating evaporation crystallization is postponed, primary crystallization thing is collected by filtration；
(6) with primary crystallization thing described in distillation water washing, secondary crystallization thing is recovered by filtration in heating evaporation crystallization, will be described secondary
Crystal is dried in the environment of 120~150 DEG C, that is, obtains the HEC-levulan compound adsorbent.
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| CN114349273A (en) * | 2021-12-28 | 2022-04-15 | 安徽普氏生态环境工程有限公司 | Nitrogen and phosphorus removal system and process for sewage treatment |
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