CN107777775B - Sewage treatment system with nitrogen and phosphorus removal function - Google Patents
Sewage treatment system with nitrogen and phosphorus removal function Download PDFInfo
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- CN107777775B CN107777775B CN201711319349.1A CN201711319349A CN107777775B CN 107777775 B CN107777775 B CN 107777775B CN 201711319349 A CN201711319349 A CN 201711319349A CN 107777775 B CN107777775 B CN 107777775B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- Hydrology & Water Resources (AREA)
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- 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)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a sewage treatment system with a nitrogen and phosphorus removal function, which can improve the purification efficiency of sewage, and thoroughly treat nitrogen and phosphorus.
Description
Technical Field
The invention relates to a sewage treatment system with a nitrogen and phosphorus removal function, and belongs to the technical field of auxiliary sewage treatment equipment.
Background
Nitrogen and phosphorus are important biological nutrient sources, and with the common use of chemical fertilizers, detergents and pesticides, the content of nitrogen and phosphorus in natural water is increased rapidly, blue-green algae and green algae in the water are propagated in large quantities, and the water is anoxic and generates toxins, so that the water quality is deteriorated, and great harm is caused to aquatic organisms and human health. At present, the sewage discharge is stricter along with the stricter environmental protection policy, the strict requirements on nitrogen and phosphorus are more and more prominent, the existing urban sewage treatment plants in China mainly concentrate on removing organic matters, the primary treatment of sewage (wastewater) only removes gravels and suspended solids in water, and in aerobic biological treatment, domestic sewage is biodegraded, and most of soluble carbon-containing organic matters are removed.
In current sewage treatment, for the good oxygen pond, general structure is fairly simple, only sets up the aeration dish, and the good oxygen pond of this kind of structure is because nitrobacteria generally is located the bottom of the pool, consequently stirs constantly through the mixer, however, the mixer is stirring the in-process, still only can realize partial regional action, moreover, the mixer action is too big leads to nitrobacteria to wash away along with rivers very easily, and then leads to sewage treatment effect relatively poor, and the processing rate is relatively slow, is difficult to satisfy the treatment requirement of present a large amount of sewage.
The invention aims at the problems and provides a sewage treatment system with a nitrogen and phosphorus removal function so as to improve the quality and efficiency of sewage treatment.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a sewage treatment system with remove nitrogen phosphorus function, its includes sedimentation tank, anaerobic jar, aerobic jar and filter tank, pending sewage process be connected to behind the sedimentation tank anaerobic jar, the delivery port of anaerobic jar is connected to aerobic jar, the delivery port of aerobic jar is connected to filter tank, its characterized in that, be provided with a plurality of net subassemblies of nitrifying, aeration subassembly and membrane bioreactor in the aerobic jar, membrane bioreactor with adopt the baffle to separate the setting between the net subassembly, and follow through the sewage after nitrifying the net subassembly the top of baffle flows in membrane bioreactor is regional, nitrify the inside supplementary air pump that is provided with of net subassembly, filter tank includes the multilayer filter structure.
Further, as preferred, nitrobacteria net subassembly includes nitrobacteria cotton ball shell, net, central rotation axis, nitrobacteria cotton and extension pipe, wherein, the net is spherical porous structure, just the net adopts the rotatable setting of central rotation axis is in the aerobic tank, be provided with on the ball auxiliary air pump, still be provided with a plurality of nitrobacteria cotton ball shells on the net all around, be provided with the nitrobacteria cotton in the nitrobacteria cotton ball shell, the nitrobacteria ball shell is netted porous structure, be provided with the nitrobacteria on the nitrobacteria cotton, the circumferencial direction of net is provided with the extension pipe to its radial extension, the extension pipe is ceramic porous material.
Further, as preferred, the outside of anaerobic jar is provided with the shell seat, the bottom in the anaerobic jar is provided with the active mud entry, the upper end of anaerobic jar is provided with sewage import and removes nitrogen phosphorus agent and throws the mouth into.
Further, as preferred, be provided with solenoid valve one on the connecting pipe between the anaerobic jar with the aerobic jar, be provided with solenoid valve two on the connecting pipe between the aerobic jar with strain the clear pond.
Further, preferably, the aeration assembly comprises an aeration main pipe and a plurality of aeration heads, wherein the plurality of aeration heads are arranged along the circumferential direction of the aeration main pipe, and the aeration main pipe is connected to an aeration pump.
Further, as preferred, the outside of good oxygen jar is around being equipped with the heat preservation, the upper end of heat preservation is provided with the heat preservation apron, good oxygen jar with be provided with electric heater between the heat preservation.
Further, as preferred, the multilayer filtering structure includes biological silk screen layer, wave filter screen, saw-dust activated carbon layer, stone sand filter bed, soil horizon, the water conservancy diversion layer that sets gradually from last down, wherein, the water conservancy diversion layer is along the horizontal direction water conservancy diversion setting.
Further, preferably, the biological silk screen layer is of a towel gourd silk screen structure, and the wave filter screen is of a stainless steel screen structure.
Further, as preferred, the delivery port of straining the pond still is provided with phosphorus nitrogen detector, phosphorus nitrogen detector is connected with the controller, the controller still is connected solenoid valve one and solenoid valve two.
Preferably, a stirrer is further arranged in the aerobic tank, a filtering waterfall pipe communicated with the aerobic tank is arranged above the filtering tank, a plurality of water flow trays are arranged on the filtering waterfall pipe, and the water flow trays are positioned above the biological silk screen layer.
Compared with the prior art, the invention has the beneficial effects that:
the invention can not only improve the purification efficiency of sewage, but also thoroughly treat nitrogen and phosphorus, and the nitrifying net component can rotate along with water flow in water, nitrifying bacteria are attached to the nitrifying net component, and the nitrifying net component is provided with the auxiliary air pump, so that the oxygen requirement of the nitrifying bacteria is ensured, and the nitrifying bacteria are difficult to flush away by the water flow.
Drawings
FIG. 1 is a schematic view showing the overall construction of a sewage treatment system having a nitrogen and phosphorus removal function according to the present invention;
FIG. 2 is a schematic view of a nitrifying net assembly of a sewage treatment system with nitrogen and phosphorus removal function according to the present invention;
FIG. 3 is a schematic view of an aeration pipe structure of a sewage treatment system with nitrogen and phosphorus removal function according to the present invention;
the device comprises an anaerobic tank 1, an aerobic tank 2, a filtering tank 3, a filtering pool 4, a shell seat 5, a sewage inlet 6, a nitrogen and phosphorus removing agent inlet 7, a connecting pipe 8, a first electromagnetic valve 9, an active mud inlet 10, an aeration main pipe 11, a nitrifying net component 12, a partition plate 13, an aeration head 14, a heat preservation cover plate 15, a membrane bioreactor 16, a second electromagnetic valve 17, a filtering waterfall pipe 18, a biological silk screen layer 19, a wave filter screen 20, a saw dust active carbon layer 21, a rock sand filter layer 22, a soil layer 23, a flow guide layer 24, a nitrifying bacteria cotton ball shell 25, a net 26, a central rotating shaft 27, nitrifying bacteria cotton 28, an extension pipe 29 and an auxiliary air pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a sewage treatment system with remove nitrogen phosphorus function, it includes sedimentation tank, anaerobic jar 1, aerobic jar 2 and filter tank 3, pending sewage process be connected to behind the sedimentation tank anaerobic jar 1, the delivery port of anaerobic jar 1 is connected to aerobic jar 2, the delivery port of aerobic jar 2 is connected to filter tank 3, its characterized in that, be provided with a plurality of nitration net subassembly 11, aeration subassembly and membrane bioreactor 15 in the aerobic jar, membrane bioreactor 15 with it separates the setting to adopt baffle 12 between the net subassembly, and the sewage after nitration net subassembly 11 is followed the top of baffle 12 flows into membrane bioreactor is regional, 11 inside supplementary air pumps 29 that are provided with of nitration net subassembly, filter tank 3 includes multilayer filter structure.
In this embodiment, nitrobacteria net subassembly includes nitrobacteria cotton ball shell 24, net 25, central rotation axis 26, nitrobacteria cotton 27 and extension pipe 28, wherein, net 25 is spherical porous structure, just net 25 adopts the rotatable setting of central rotation axis 26 is in the aerobic tank, be provided with on the net 25 supplementary air pump 29, still be provided with a plurality of nitrobacteria cotton ball shells 24 on the net all around, be provided with nitrobacteria cotton 27 in the nitrobacteria cotton ball shell 24, nitrobacteria ball shell 24 is netted porous structure, be provided with nitrobacteria on the nitrobacteria cotton 27, the circumferencial direction of net is provided with extension pipe 28 to its radial extension, extension pipe 28 is ceramic porous material.
Wherein, the outside of anaerobic jar is provided with shell seat 4, the bottom in the anaerobic jar is provided with active mud entry 9, the upper end of anaerobic jar is provided with sewage import and removes nitrogen phosphorus agent and throw into mouth 6. In order to control the sewage treatment rate and improve the treatment thoroughness, a first electromagnetic valve 8 is arranged on a connecting pipe between the anaerobic tank and the aerobic tank, and a second electromagnetic valve 16 is arranged on a connecting pipe between the aerobic tank and the filtering pond.
In order to improve the aeration effect, the aeration assembly comprises an aeration main pipe 10 and aeration heads 13, wherein a plurality of aeration heads 13 are arranged along the circumferential direction of the aeration main pipe 10, and the aeration main pipe is connected to an aeration pump.
In order to improve the activity of nitrobacteria, a heat-insulating layer is wound around the outside of the aerobic tank, a heat-insulating cover plate 14 is arranged at the upper end of the heat-insulating layer, and an electric heater is arranged between the aerobic tank and the heat-insulating layer.
The multilayer filtering structure comprises a biological silk screen layer 18, a wave filter screen 19, a sawdust activated carbon layer 20, a rock sand filter layer 21, a soil layer 22 and a flow guide layer 23 which are sequentially arranged from top to bottom, wherein the flow guide layer 23 is arranged along the horizontal direction in a flow guide mode.
As a preferred embodiment, the biological silk screen layer is of a loofah silk screen structure, and the wave filter screen is of a stainless steel screen structure. The water outlet of the filtering pond is also provided with a phosphorus and nitrogen detector, the phosphorus and nitrogen detector is connected with a controller, and the controller is also connected with a first electromagnetic valve and a second electromagnetic valve.
In addition, a stirrer is further arranged in the aerobic tank, a filtering waterfall pipe 17 communicated with the aerobic tank is arranged above the filtering pool, a plurality of water flow trays are arranged on the filtering waterfall pipe, and the water flow trays are located above the biological silk screen layer.
The invention can not only improve the purification efficiency of sewage, but also thoroughly treat nitrogen and phosphorus, and the nitrifying net component can rotate along with water flow in water, nitrifying bacteria are attached to the nitrifying net component, and the nitrifying net component is provided with the auxiliary air pump, so that the oxygen requirement of the nitrifying bacteria is ensured, and the nitrifying bacteria are difficult to flush away by the water flow.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a sewage treatment system with remove nitrogen phosphorus function, its includes sedimentation tank, anaerobic jar, aerobic jar and filter tank, pending sewage process be connected to behind the sedimentation tank anaerobic jar, the delivery port of anaerobic jar is connected to the aerobic jar, the delivery port of aerobic jar is connected to the filter tank, its characterized in that, be provided with a plurality of nitrifying net subassembly, aeration subassembly and membrane bioreactor in the aerobic jar, membrane bioreactor with adopt the baffle to separate the setting between the nitrifying net subassembly, and sewage after nitrifying the net subassembly flows in from the top of baffle the membrane bioreactor is regional, nitrify the inside supplementary air pump that is provided with of net subassembly, the filter tank includes multilayer filtration structure;
nitrification net subassembly includes nitrobacteria cotton ball shell, net, central rotation axis, nitrobacteria cotton and extension pipe, wherein, the net is spherical porous structure, just the net adopts the rotatable setting of central rotation axis is in the aerobic tank, be provided with on the ball net supplementary air pump, the net still is provided with a plurality of nitrobacteria cotton ball shells on all around, be provided with the nitrobacteria cotton in the nitrobacteria cotton ball shell, the nitrobacteria cotton ball shell is netted porous structure, be provided with nitrobacteria on the nitrobacteria cotton, the circumferencial direction of net is provided with the extension pipe to its radial extension, the extension pipe is ceramic porous material.
2. The sewage treatment system with the function of removing nitrogen and phosphorus according to claim 1, wherein: the outside of anaerobic jar is provided with the shell seat, the bottom in the anaerobic jar is provided with the active mud entry, the upper end of anaerobic jar is provided with sewage import and removes nitrogen phosphorus agent and throws the mouth into.
3. The sewage treatment system with the function of removing nitrogen and phosphorus according to claim 1, wherein: the anaerobic tank and a connecting pipe between the aerobic tanks are provided with a first electromagnetic valve, and the aerobic tanks and a connecting pipe between the filtering ponds are provided with a second electromagnetic valve.
4. The sewage treatment system with the function of removing nitrogen and phosphorus according to claim 1, wherein: the aeration component comprises an aeration main pipe and aeration heads, wherein the aeration heads are arranged along the circumferential direction of the aeration main pipe, and the aeration main pipe is connected to an aeration pump.
5. The sewage treatment system with the function of removing nitrogen and phosphorus according to claim 1, wherein: the aerobic tank is characterized in that a heat insulation layer is wound around the outside of the aerobic tank, a heat insulation cover plate is arranged at the upper end of the heat insulation layer, and an electric heater is arranged between the aerobic tank and the heat insulation layer.
6. The sewage treatment system with the function of removing nitrogen and phosphorus according to claim 1, wherein: the multilayer filtering structure comprises a biological silk screen layer, a wave filter screen, a sawdust activated carbon layer, a rock sand filter layer, a soil layer and a flow guide layer which are sequentially arranged from top to bottom, wherein the flow guide layer is arranged along the horizontal direction in a flow guide mode.
7. The sewage treatment system with the function of removing nitrogen and phosphorus according to claim 6, wherein: the biological silk screen layer is of a towel gourd silk screen structure, and the wave filter screen is of a stainless steel mesh structure.
8. The sewage treatment system with nitrogen and phosphorus removal function according to any one of claims 1 to 7, wherein: the water outlet of the filtering pond is also provided with a phosphorus and nitrogen detector, the phosphorus and nitrogen detector is connected with a controller, and the controller is also connected with a first electromagnetic valve and a second electromagnetic valve.
9. The sewage treatment system with nitrogen and phosphorus removal function according to any one of claims 1 to 7, wherein: the aerobic tank is internally provided with a stirrer, a filtering waterfall pipe communicated with the aerobic tank is arranged above the filtering pool, a plurality of water flow trays are arranged on the filtering waterfall pipe, and the water flow trays are positioned above the biological silk screen layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711319349.1A CN107777775B (en) | 2017-12-12 | 2017-12-12 | Sewage treatment system with nitrogen and phosphorus removal function |
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| CN201711319349.1A CN107777775B (en) | 2017-12-12 | 2017-12-12 | Sewage treatment system with nitrogen and phosphorus removal function |
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| CN107777775A CN107777775A (en) | 2018-03-09 |
| CN107777775B true CN107777775B (en) | 2021-03-23 |
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| CN113387464B (en) * | 2021-04-30 | 2023-06-09 | 中国水利水电第八工程局有限公司 | Water body purifying device for water environment treatment |
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| WO2016021766A1 (en) * | 2014-08-06 | 2016-02-11 | 경기도 | System for advanced sewage and wastewater treatment using optimum microorganisms for pollutants and method therefor |
| CN107129115A (en) * | 2017-06-29 | 2017-09-05 | 长安大学 | A kind of carbon nitrogen phosphorus and sludge treatment integrated small sewage-treatment plant and technique |
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2017
- 2017-12-12 CN CN201711319349.1A patent/CN107777775B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2258164Y (en) * | 1996-06-17 | 1997-07-23 | 李景卫 | High-efficiency treatment device of industrial waste water and sanitary sewage |
| KR100821659B1 (en) * | 2007-02-28 | 2008-04-14 | (주)이엔바이오21 | E-mbr system |
| CN101475287A (en) * | 2009-01-06 | 2009-07-08 | 环境保护部华南环境科学研究所 | Novel membrane-biological membrane reactor system and use thereof |
| CN103030247A (en) * | 2011-10-09 | 2013-04-10 | 中国环境科学研究院 | Method for treating sewage by organism-soil infiltration and device for realizing method |
| CN102432105A (en) * | 2011-11-09 | 2012-05-02 | 中国科学院广州地球化学研究所 | Method and device for efficiently denitriding and dephosphorizing underground percolation sewage |
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| CN107129115A (en) * | 2017-06-29 | 2017-09-05 | 长安大学 | A kind of carbon nitrogen phosphorus and sludge treatment integrated small sewage-treatment plant and technique |
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