CN105800875A - Living sewage integrated treatment device and treatment method - Google Patents
Living sewage integrated treatment device and treatment method Download PDFInfo
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- CN105800875A CN105800875A CN201610298587.8A CN201610298587A CN105800875A CN 105800875 A CN105800875 A CN 105800875A CN 201610298587 A CN201610298587 A CN 201610298587A CN 105800875 A CN105800875 A CN 105800875A
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- 239000010865 sewage Substances 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000006243 chemical reaction Methods 0.000 claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000010802 sludge Substances 0.000 claims abstract description 30
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 27
- 239000011574 phosphorus Substances 0.000 claims abstract description 27
- 241000894006 Bacteria Species 0.000 claims description 20
- 238000006396 nitration reaction Methods 0.000 claims description 15
- 229920000388 Polyphosphate Polymers 0.000 claims description 14
- 229920000037 Polyproline Polymers 0.000 claims description 14
- 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 claims description 14
- 239000001205 polyphosphate Substances 0.000 claims description 14
- 235000011176 polyphosphates Nutrition 0.000 claims description 14
- 229910019142 PO4 Inorganic materials 0.000 claims description 13
- 239000010452 phosphate Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 10
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 9
- 239000000194 fatty acid Substances 0.000 claims description 9
- 229930195729 fatty acid Natural products 0.000 claims description 9
- 150000004665 fatty acids Chemical class 0.000 claims description 9
- 238000010992 reflux Methods 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 7
- XTWYTFMLZFPYCI-KQYNXXCUSA-N 5'-adenylphosphoric acid Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OP(O)(O)=O)[C@@H](O)[C@H]1O XTWYTFMLZFPYCI-KQYNXXCUSA-N 0.000 claims description 6
- XTWYTFMLZFPYCI-UHFFFAOYSA-N Adenosine diphosphate Natural products C1=NC=2C(N)=NC=NC=2N1C1OC(COP(O)(=O)OP(O)(O)=O)C(O)C1O XTWYTFMLZFPYCI-UHFFFAOYSA-N 0.000 claims description 6
- 230000004060 metabolic process Effects 0.000 claims description 6
- 238000003672 processing method Methods 0.000 claims description 5
- 239000006228 supernatant Substances 0.000 claims description 4
- ZKHQWZAMYRWXGA-KQYNXXCUSA-J ATP(4-) Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O)[C@@H](O)[C@H]1O ZKHQWZAMYRWXGA-KQYNXXCUSA-J 0.000 claims description 3
- ZKHQWZAMYRWXGA-UHFFFAOYSA-N Adenosine triphosphate Natural products C1=NC=2C(N)=NC=NC=2N1C1OC(COP(O)(=O)OP(O)(=O)OP(O)(O)=O)C(O)C1O ZKHQWZAMYRWXGA-UHFFFAOYSA-N 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 230000037406 food intake Effects 0.000 claims description 3
- 235000003642 hunger Nutrition 0.000 claims description 3
- 230000037351 starvation Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- 239000012528 membrane Substances 0.000 abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 5
- 230000001954 sterilising effect Effects 0.000 abstract description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 3
- 238000005273 aeration Methods 0.000 abstract description 2
- 229920000331 Polyhydroxybutyrate Polymers 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical compound CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 description 1
- 229920001397 Poly-beta-hydroxybutyrate Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a living sewage integrated treatment device and a treatment method. The living sewage integrated treatment device comprises a pre-anoxic reactor, an anaerobic tank, an anoxic reactor, an MBR membrane reaction pond and a clean water pond, wherein the water inlet of the pre-anoxic reactor is communicated with the water outlet of the pre-anoxic reactor; the water inlet of the anoxic reactor is communicated with the water outlet of the anaerobic tank; the water inlet of the MBR membrane reaction pond is communicated with the water outlet of the anoxic reactor; the MBR membrane reaction pond is connected with a fan aeration system; the MBR membrane reaction pond is further communicated with the anoxic reactor through a backflow pump; the sludge hole of the MBR membrane reaction pond is communicated with the pre-anoxic reactor and a sludge pond through sludge pumps; the water outlet of the MBR membrane reaction pond is communicated with the water inlet of an ultraviolet sterilization device; the upper part of the sludge pond is communicated with the pre-anoxic reactor; the clean water pond is communicated with the water outlet of the ultraviolet sterilization device. The living sewage integrated treatment device disclosed by the invention is capable of removing nitrogen and phosphorus simultaneously and is simple and convenient in process, small in floor space and low in cost.
Description
Technical field
The present invention relates to air cleaning technical field, be specifically related to Domestic sewage integrated treatment unit and processing method.
Background technology
For a long time, the two stage biological of sanitary sewage processes and adopts activated sludge process more, including SBR (sequencingbatchreactoractivatedsludgeprocess, namely in one reaction pool (device), the activated sludge sewage water treatment method being made up of water inlet, aeration, precipitation, draining and standby five basic working procedure in chronological order), oxidation ditch, the common technology such as AB (AdsorptionBiodegradation, Adsorption-Biodegradation technique) method.It is big that activated sludge process ubiquity floor space, and capital cost, running cost are high, and energy consumption is big, manages more complicated, the problem such as sludge bulking, Mud up-floating easily occurs, and can not remove the inorganic nutrient substance such as total nitrogen, phosphorus.Currently also there is employing integration apparatus to process sanitary sewage, although such integration apparatus floor space is little, but have problems in technological design, often only have Aerobic Process for Treatment, ignore the denitrogenation dephosphorizing of sanitary sewage, process water outlet and be difficult to stably reaching standard.
Summary of the invention
Based on this, the present invention provides one to remove nitrogen and phosphorus and simple process simultaneously, and floor space is little, the Domestic sewage integrated treatment unit that cost is low.
The present invention also provides for the sewerage integrated processing method of one way of life.
In order to realize the purpose of the present invention, the present invention by the following technical solutions:
One way of life sewage integrated treatment device, comprising:
Pre-anoxic pond, has sanitary sewage entrance；
Anaerobic pond, the water inlet of described anaerobic pond connects with the outlet of described pre-anoxic pond；
Anoxic pond, the water inlet of described anoxic pond connects with the outlet of described anaerobic pond；
MBR film reaction pond, the described water inlet in MBR film reaction pond connects with the outlet of described anoxic pond, described MBR film reaction pond is connected with a blower fan aerating system, described MBR film reaction pond connects with described anoxic pond also by reflux pump, the mud mouth in described MBR film reaction pond is connected by sludge pump with pre-anoxic pond and a sludge-tank respectively, and the outlet in described MBR film reaction pond and the water inlet of a ultra violet sterilizer connect；The top of described sludge-tank connects with described pre-anoxic pond；
Clear water reserviors, connect with the outlet of described ultra violet sterilizer.
Wherein in some embodiments, described MBR film reaction pond includes Aerobic Pond and sedimentation tank.
For achieving the above object, the present invention also adopts the following technical scheme that
The sewerage integrated processing method of one way of life, it comprises the steps:
S1, offer Domestic sewage integrated treatment unit, comprising: pre-anoxic pond, have sanitary sewage entrance；Anaerobic pond, the water inlet of described anaerobic pond connects with the outlet of described pre-anoxic pond；Anoxic pond, the water inlet of described anoxic pond connects with the outlet of described anaerobic pond；MBR film reaction pond, the described water inlet in MBR film reaction pond connects with the outlet of described anoxic pond, described MBR film reaction pond is connected with a blower fan aerating system, described MBR film reaction pond connects with described anoxic pond also by reflux pump, the mud mouth in described MBR film reaction pond is connected by sludge pump with pre-anoxic pond and a sludge-tank respectively, the outlet in described MBR film reaction pond and the water inlet connection of a ultra violet sterilizer, the top of described sludge-tank connects with described pre-anoxic pond；Clear water reserviors, connect with the outlet of described ultra violet sterilizer；
S2, sanitary sewage are entered pre-anoxic pond by sanitary sewage entrance, and pre-anoxic pond utilizes the endogenous metabolism of the Organic substance in sewage and activated sludge to carry out denitrification, removes the nitrate nitrogen in sanitary sewage；Sewage after denitrification enters in anaerobic pond and mixes with the sewage in anaerobic pond, utilizes anaerobe to remove the phosphorus in sewage；
In S3, anaerobic pond, the sewage after dephosphorization enters anoxic pond, carries out anti-nitration reaction, removes the nitrate nitrogen in sewage mixed liquor by denitrifying bacterium；
Sewage after the process of S4, anoxic pond enters MBR film reaction pond, under aerobic condition, carries out nitration reaction, by nitrifier by the NH in sewage3-N transforms into nitrate nitrogen, and the sewage after conversion is back to anoxic pond by reflux pump, jointly carries out anti-nitration reaction with the sewage in anoxic pond；Meanwhile, the phosphate in polyP bacteria picked-up water body, complete poly-phosphorus process, form high phosphorus sludge, high phosphorus sludge is expelled to sludge-tank in part through sludge pump, and another part is back to pre-anoxic pond；The clear water that MBR film reaction pond produces flow to clear water reserviors after being sterilized by ultra violet sterilizer；
Mud in S5, sludge-tank carries out aerobic sigestion process, and the supernatant of generation is back to pre-anoxic pond circular treatment.
Wherein in some embodiments, carrying out nitration reaction and poly-phosphorus process in the Aerobic Pond in described MBR film reaction pond, sludge settling is to sedimentation tank.
Wherein in some embodiments, described anaerobic pond utilizes the organic process in anaerobe fast degradation sewage specifically: under anaerobic, in sewage, the dissolubility BOD of easily biological-degradable is resolved into low-molecular-weight fatty acid by acid-producing bacteria and polyP bacteria acidifying, the high level of polymerisation phosphorus of its internal accumulation is decomposed by low-molecular-weight fatty acid induction activated cell, discharge phosphate radical and bond energy, conversion by adenosine triphosphate to adenosine diphosphate (ADP), low-molecular-weight fatty acid is taken in internal by polyP bacteria, and store with the form of PHB, form the Phosphurus release of anaerobic processes.
Wherein in some embodiments, phosphate in polyP bacteria picked-up water body in described step S4, complete poly-phosphorus process specifically: the polyP bacteria being under " phosphate starvation " state consumes PHB and the Exogenous ground substance of internal reservoir, synthesize new cell and carry out metabolism, phosphate in excess ingestion water body, completes poly-phosphorus process in cell.
Domestic sewage integrated treatment unit of the present invention, including pre-anoxic pond, anaerobic pond, anoxic pond, MBR film reaction pond, clear water reserviors and sludge-tank, pre-anoxic pond first removes nitrate nitrogen, anaerobic pond explanation Organic substance, nitrate nitrogen is again removed again in anoxic pond, the last phosphorus removed in MBR film reaction pond in sewage, wherein the sewage backflow of MBR film reaction repeatedly removes nitrate nitrogen to anoxic pond, so can removing the nitrogen in sanitary sewage and phosphorus to greatest extent, the sewage after processing with guarantee meets discharge standard；The whole flow process integrated setting of this device, floor space is little, and cost is low, and technique is also uncomplicated, simple to operate.
MBR film reaction pond integrates Aerobic Pond, sedimentation tank, decreases the floor space of equipment, improves the anti impulsion load ability of system, simultaneously the also significant increase solid-liquid separation capability of system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Domestic sewage integrated treatment unit of a preferred embodiment of the present invention；
Fig. 2 is the flow chart that Domestic sewage integrated treatment unit described in Fig. 1 processes sanitary sewage.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Accompanying drawing gives presently preferred embodiments of the present invention.But, the present invention can realize in many different forms, however it is not limited to embodiment described herein.On the contrary, the purpose providing these embodiments is to make the understanding to the disclosure more thorough comprehensively.
It should be noted that be referred to as " being fixed on " another element when element, it can directly on another element or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly to another element or may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein is identical with the implication that the those skilled in the art belonging to the present invention are generally understood that with scientific terminology.The term used in the description of the invention herein is intended merely to the purpose describing specific embodiment, it is not intended that in the restriction present invention.
Refer to Fig. 1 and Fig. 2, Domestic sewage integrated treatment unit 100 of the present invention, be used for the harmful substance and the inorganic nutrient substance such as nitrogen, phosphorus that remove in sanitary sewage.This Domestic sewage integrated treatment unit 100 includes pre-anoxic pond 10, anaerobic pond 20, anoxic pond 30, MBR film reaction pond 40 (MembraneBio-Reactor, MBR), sludge-tank 50 and clear water reserviors 60, pre-anoxic pond 10 has sanitary sewage entrance, sanitary sewage is entered in pre-anoxic pond 10 by this sanitary sewage entrance and carries out denitrification process, the water inlet of anaerobic pond 20 connects with the outlet of pre-anoxic pond 10, so that the sanitary sewage after pre-anoxic pond 10 process flows into anaerobic pond 20, the Organic substance in degradation of sewage；The water inlet of anoxic pond 30 connects with the outlet of anaerobic pond 20, anaerobic pond 20 sewage after processing enters anoxic pond 30 and again carries out anti-nitration reaction；The water inlet in MBR film reaction pond 40 connects with the outlet of anoxic pond 30, and the sewage entrance MBR film reaction pond 40 after anoxic pond 30 process carries out nitration reaction and reacts with dephosphorization；MBR film reaction pond 40 is also connected with a blower fan aerating system 41, the gas needed is provided for MBR film reaction pond 40, MBR film reaction pond 40 connects with anoxic pond 30 also by reflux pump 43 so that membrane cisterna mixed liquor is back to anoxic pond 30 by MBR film reaction pond 40 and carries out anti-nitration reaction；The mud mouth in MBR film reaction pond 40 is connected by sludge pump 51 with pre-anoxic pond 10 and sludge-tank 50 respectively, and MBR film reaction pond 40 is reacted remaining mud and is partly into pre-anoxic pond 10 circular treatment, and another part enters sludge-tank 50 and carries out aerobic sigestion process；The outlet in MBR film reaction pond 40 and the water inlet connection of a ultra violet sterilizer 42, the outlet of ultra violet sterilizer 42 connects with clear water reserviors 60, the top of sludge-tank 50 connects with pre-anoxic pond 10, and the reacted supernatant of sludge-tank 50 is back to pre-anoxic pond 10 circular treatment.MBR film reaction pond 40 includes Aerobic Pond 44 and sedimentation tank 45, and Aerobic Pond 44 carries out nitration reaction and poly-phosphorus process, and sludge settling is to sedimentation tank 45.
The method that above-mentioned Domestic sewage integrated treatment unit 100 processes sanitary sewage is adopted to be:
S1, provide above-mentioned Domestic sewage integrated treatment unit, comprising: pre-anoxic pond 10, there is sanitary sewage entrance；Anaerobic pond 20, the water inlet of anaerobic pond 20 connects with the outlet of pre-anoxic pond 10；Anoxic pond 30, the water inlet of anoxic pond 30 connects with the outlet of anaerobic pond 20；MBR film reaction pond 40, the water inlet in MBR film reaction pond 40 connects with the outlet of anoxic pond 30, MBR film reaction pond 40 is connected with a blower fan aerating system 41, MBR film reaction pond 40 connects with anoxic pond 30 also by reflux pump 43, the mud mouth in MBR film reaction pond 40 is connected by sludge pump 51 with pre-anoxic pond 10 and sludge-tank 50 respectively, the outlet in MBR film reaction pond 40 and the water inlet connection of a ultra violet sterilizer 42, the top of sludge-tank 50 connects with pre-anoxic pond 10；Clear water reserviors 60 connect with the outlet of ultra violet sterilizer 42.
S2, need sanitary sewage to be processed are entered pre-anoxic pond 10 by sanitary sewage entrance respectively according to preset ratio, carry out air stirring simultaneously.Specifically: pre-anoxic pond 10 utilizes the endogenous metabolism of the Organic substance in sewage and activated sludge to carry out denitrification, remove the nitrate nitrogen in sanitary sewage, effectively remove the nitrate nitrogen in returned sludge, make follow-up anaerobic pond 20 not by the adverse effect of backflow nitrate nitrogen, or while adding sanitary sewage (mud), adding a certain amount of water, the mass ratio of usual sewage or mud and water is 5～9:1, and water provides a certain amount of Organic substance；Sewage after denitrification enters in anaerobic pond 20 and mixes with the sewage in anaerobic pond 20, carries out air stirring simultaneously, utilizes the quick dephosphorization of anaerobe；Specifically: under anaerobic, dissolubility BOD (the BiochemicalOxygenDemand of easily biological-degradable in sewage, Biochemical oxygen demand) resolved into the low-molecular-weight fatty acids such as acetic acid by acid-producing bacteria and polyP bacteria acidifying, low-molecular-weight fatty acid can not only be utilized by polyP bacteria, and activated cell can be induced to be decomposed by the high level of polymerisation phosphorus of its internal accumulation, discharge phosphate radical and bond energy, conversion by adenosine triphosphate to adenosine diphosphate (ADP), low-molecular-weight fatty acid is taken in internal by polyP bacteria, and with PHB (poly-β-hydroxybutyric acid, poly-β-hydroxybutyrate) form store, form the Phosphurus release of anaerobic processes.
In S3, anaerobic pond 20, the sewage after dephosphorization enters anoxic pond 30, carries out anti-nitration reaction, removes the nitrate nitrogen in sewage mixed liquor by the denitrifying bacterium in sewage；In this step, sewage mixed liquor includes the backflow in the sewage after anaerobic pond 20 dephosphorization and MBR film reaction pond 40.
Sewage after the process of S4, anoxic pond enters MBR film reaction pond 40, carries out air stirring, under aerobic condition, carries out nitration reaction, by the nitrifier in sewage by the NH in sewage3-N transforms into nitrate nitrogen, and the sewage after conversion is back in anoxic pond 30 by reflux pump 43, forms sewage mixed liquor with the sewage of anoxic pond 30, jointly carries out anti-nitration reaction；Simultaneously, it is in the polyP bacteria in the sewage under " phosphate starvation " state and consumes PHB and the Exogenous ground substance of internal reservoir, synthesize new cell and carry out metabolism, phosphate in excess ingestion water body, poly-phosphorus process is completed in cell, forming high phosphorus sludge, high phosphorus sludge is expelled to sludge-tank 50 in part through sludge pump 51, and another part is back to pre-anoxic pond 10 and is circulated process；The clear water that MBR film reaction pond 40 produces is by flowing to clear water reserviors 60 after ultra violet sterilizer 42 sterilization.
Mud in S5, sludge-tank carries out aerobic sigestion process, and the supernatant of generation is back to pre-anoxic pond circular treatment.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (6)
1. one way of life sewage integrated treatment device, it is characterised in that including:
Pre-anoxic pond, has sanitary sewage entrance；
Anaerobic pond, the water inlet of described anaerobic pond connects with the outlet of described pre-anoxic pond；
Anoxic pond, the water inlet of described anoxic pond connects with the outlet of described anaerobic pond；
MBR film reaction pond, the described water inlet in MBR film reaction pond connects with the outlet of described anoxic pond, described MBR film reaction pond is connected with a blower fan aerating system, described MBR film reaction pond connects with described anoxic pond also by reflux pump, the mud mouth in described MBR film reaction pond is connected by sludge pump with pre-anoxic pond and a sludge-tank respectively, and the outlet in described MBR film reaction pond and the water inlet of a ultra violet sterilizer connect；The top of described sludge-tank connects with described pre-anoxic pond；
Clear water reserviors, connect with the outlet of described ultra violet sterilizer.
2. Domestic sewage integrated treatment unit according to claim 1, it is characterised in that: described MBR film reaction pond includes Aerobic Pond and sedimentation tank.
3. the sewerage integrated processing method of one way of life, it is characterised in that comprise the steps:
S1, offer Domestic sewage integrated treatment unit, comprising:
Pre-anoxic pond, has sanitary sewage entrance；Anaerobic pond, the water inlet of described anaerobic pond connects with the outlet of described pre-anoxic pond；Anoxic pond, the water inlet of described anoxic pond connects with the outlet of described anaerobic pond；MBR film reaction pond, the described water inlet in MBR film reaction pond connects with the outlet of described anoxic pond, described MBR film reaction pond is connected with a blower fan aerating system, described MBR film reaction pond connects with described anoxic pond also by reflux pump, the mud mouth in described MBR film reaction pond is connected by sludge pump with pre-anoxic pond and a sludge-tank respectively, the outlet in described MBR film reaction pond and the water inlet connection of a ultra violet sterilizer, the top of described sludge-tank connects with described pre-anoxic pond；Clear water reserviors, connect with the outlet of described ultra violet sterilizer；
S2, sanitary sewage are entered pre-anoxic pond by sanitary sewage entrance, and pre-anoxic pond utilizes the endogenous metabolism of the Organic substance in sewage and activated sludge to carry out denitrification, removes the nitrate nitrogen in sanitary sewage；Sewage after denitrification enters in anaerobic pond and mixes with the sewage in anaerobic pond, utilizes anaerobe to remove the phosphorus in sewage；
In S3, anaerobic pond, the sewage after dephosphorization enters anoxic pond, carries out anti-nitration reaction, removes the nitrate nitrogen in sewage mixed liquor by denitrifying bacterium；
Sewage after the process of S4, anoxic pond enters MBR film reaction pond, under aerobic condition, carries out nitration reaction, by nitrifier by the NH in sewage3-N transforms into nitrate nitrogen, and the sewage after conversion is back to anoxic pond by reflux pump, jointly carries out anti-nitration reaction with the sewage in anoxic pond；Meanwhile, polyP bacteria picked-up phosphate, complete poly-phosphorus process, form high phosphorus sludge, high phosphorus sludge is expelled to sludge-tank in part through sludge pump, and another part is back to pre-anoxic pond；The clear water that MBR film reaction pond produces flow to clear water reserviors after being sterilized by ultra violet sterilizer；
Mud in S5, sludge-tank carries out aerobic sigestion process, and the supernatant of generation is back to pre-anoxic pond circular treatment.
4. sanitary sewage integral treatment method according to claim 3, it is characterised in that: carrying out nitration reaction and poly-phosphorus process in the Aerobic Pond in described MBR film reaction pond, sludge settling is to sedimentation tank.
5. sanitary sewage integral treatment method according to claim 3, it is characterized in that: described anaerobic pond utilizes the organic process in anaerobe fast degradation sewage specifically: under anaerobic, in sewage, the dissolubility BOD of easily biological-degradable is resolved into low-molecular-weight fatty acid by acid-producing bacteria and polyP bacteria acidifying, the high level of polymerisation phosphorus of its internal accumulation is decomposed by low-molecular-weight fatty acid induction activated cell, discharge phosphate radical and bond energy, conversion by adenosine triphosphate to adenosine diphosphate (ADP), low-molecular-weight fatty acid is taken in internal by polyP bacteria, and store with the form of PHB, form the Phosphurus release of anaerobic processes.
6. sanitary sewage integral treatment method according to claim 3, it is characterized in that: the phosphate in polyP bacteria picked-up water body in described step S4, complete poly-phosphorus process specifically: the polyP bacteria being under " phosphate starvation " state consumes PHB and the Exogenous ground substance of internal reservoir, synthesize new cell and carry out metabolism, phosphate in excess ingestion water body, completes poly-phosphorus process in cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610298587.8A CN105800875A (en) | 2016-05-05 | 2016-05-05 | Living sewage integrated treatment device and treatment method |
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| CN106082564A (en) * | 2016-08-18 | 2016-11-09 | 赵治平 | A kind of membrane bioreactor sludge reduction sewage disposal technology |
| CN106865893A (en) * | 2017-03-09 | 2017-06-20 | 杭州职业技术学院 | A kind of domestic sewage treatment process |
| CN107572737A (en) * | 2017-11-01 | 2018-01-12 | 于萍 | A kind of six sections of biochemical sewage processing methods |
| CN108017240A (en) * | 2018-01-15 | 2018-05-11 | 中科众沃生态科技（武汉）有限公司 | A kind of new village sanitary sewage photocatalysis integrated processing system |
| CN111138038A (en) * | 2020-01-17 | 2020-05-12 | 生态环境部华南环境科学研究所 | Photovoltaic-driven rural domestic sewage integrated treatment system and treatment method |
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| CN108017240A (en) * | 2018-01-15 | 2018-05-11 | 中科众沃生态科技（武汉）有限公司 | A kind of new village sanitary sewage photocatalysis integrated processing system |
| CN111138038A (en) * | 2020-01-17 | 2020-05-12 | 生态环境部华南环境科学研究所 | Photovoltaic-driven rural domestic sewage integrated treatment system and treatment method |
| CN111138038B (en) * | 2020-01-17 | 2024-02-13 | 生态环境部华南环境科学研究所 | Photovoltaic-driven rural domestic sewage integrated treatment system and treatment method |
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