CN110182953B - High-load underground infiltration sewage treatment system and method - Google Patents
High-load underground infiltration sewage treatment system and method Download PDFInfo
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- CN110182953B CN110182953B CN201910625993.4A CN201910625993A CN110182953B CN 110182953 B CN110182953 B CN 110182953B CN 201910625993 A CN201910625993 A CN 201910625993A CN 110182953 B CN110182953 B CN 110182953B
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- 239000010865 sewage Substances 0.000 title claims abstract description 73
- 230000008595 infiltration Effects 0.000 title claims abstract description 21
- 238000001764 infiltration Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 239000010410 layer Substances 0.000 claims description 52
- 241000894006 Bacteria Species 0.000 claims description 15
- 241001453382 Nitrosomonadales Species 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000011368 organic material Substances 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- 230000007774 longterm Effects 0.000 claims description 2
- 230000001089 mineralizing effect Effects 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005325 percolation Methods 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical group [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000001651 autotrophic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000010457 zeolite 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
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (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)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a high-load underground infiltration sewage treatment system and a high-load underground infiltration sewage treatment method, which belong to the technical field of sewage treatment. The invention provides the organic carbon source for the denitrification reaction by utilizing the original sewage, solves the problem that the denitrification reaction is inhibited due to the lack of the organic carbon source in the conventional process, not only can improve the denitrification effect of the percolation system under the condition of almost not increasing the operation cost, but also can increase the plane load of the percolation system, reduce the occupied area and lower the construction cost.
Description
Technical Field
The invention belongs to the technical field of sewage treatment in environmental engineering, in particular to a high-load underground infiltration sewage treatment system and a high-load underground infiltration sewage treatment method, and particularly relates to treatment of domestic sewage and municipal sewage by utilizing an aerobic section and anoxic section coupling mode.
Background
Water is a life source, water environment treatment and water resource protection are subject to sustainable development of social economy, and are highly valued in China, the focus of sewage treatment is improved from total COD and ammonia nitrogen emission control to water eutrophication control, and the control of nitrogen emission of a sewage treatment system is more and more strict.
In domestic sewage and municipal sewage, nitrogen mainly exists in the form of ammonia nitrogen, and common sewage treatment processes are all performed by aerobic biochemical treatment, so that organic matters in the sewage are mineralized into CO 2 and H 2 O, ammonia nitrogen is oxidized into NO 3 - and NO 2 -, and then the ammonia nitrogen is converted into N 2 through denitrification. However, since the mineralized bacteria of the organic matters are mainly heterotrophic bacteria, the breeding capacity is strong, and the ammonia oxidizing bacteria are autotrophic bacteria, the breeding capacity is weak, so that the organic matters in the sewage are rapidly decomposed and mineralized while the aerobic ammonia oxidation reaction is carried out, and the subsequent denitrification is difficult to carry out due to the lack of organic carbon sources. For this reason, the idea of refluxing a part of the sewage was proposed and a widely used A 2/O process was developed. Such processes not only increase investment and operating costs, but also have a difficult denitrification rate exceeding 50% under actual working conditions, so that in many cases it is necessary to add an organic carbon source to further promote denitrification.
The underground infiltration sewage treatment technology is widely applied due to excellent environmental and economic benefits, but the problem of poor denitrification effect caused by the lack of an organic carbon source also exists. In order to improve the total nitrogen removal effect in sewage, the effluent of a percolation system is generally further treated by adopting an artificial wetland, and plant root metabolites are utilized to provide organic carbon sources for denitrification, but the mode requires a large amount of occupied area, and has high construction cost and large site selection difficulty.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a high-load underground infiltration system and a method with a deep denitrification function, which can realize the deep denitrification of the infiltration system under the condition of hardly increasing the operation cost, increase the plane load of the infiltration system, reduce the occupied area and lower the construction cost.
In order to achieve the technical purpose, the system scheme of the invention is as follows: a high-load subsurface infiltration wastewater treatment system comprising an aerobic section and an anoxic section coupled to each other, wherein: mineralizing organic matters in the sewage into CO 2 and H 2 O in the aerobic section, and oxidizing ammonia nitrogen into NO 3 - and NO 2 -; the anoxic section converts NO 3 - and NO 2 - into N 2; through denitrification, and an organic carbon source adding layer is arranged at the top of the anoxic section and is buried with an adding pipe for adding an organic carbon source, short-range denitrifying bacteria and anaerobic ammonia oxidizing bacteria; the bottom of the anoxic section is a water collecting layer, wherein a water collecting pipe is buried in the anoxic section; an anoxic biological filter layer is arranged between the organic carbon source adding layer and the water collecting layer; the water collecting pipe is connected with a water draining pipe; the height of the water outlet pipe is similar to that of the feeding pipe.
Preferably, the aerobic section comprises a water dispersing pipe, a gas distribution pipe and a filter material; the water dispersing pipe is connected with the sewage inlet pipe and is positioned at the upper part of the aerobic section; the air distribution pipe is connected with the fan and is arranged near the bottom of the aerobic section; the filter material is single-layer or multi-layer.
As a further improvement, the aerobic section is located at the upper part of the anoxic section.
Preferably, the organic carbon source adding layer and the water collecting layer of the anoxic section adopt stone materials with the particle size of 10-40 mm.
Preferably, the feeding pipe of the anoxic section adopts a PVC pipe or a UPVC pipe with uniform holes on the pipe wall; the water collecting pipe of the anoxic section is a PVC pipe or a UPVC pipe with water collecting holes on the pipe wall.
Preferably, the anoxic biological filter layer mainly comprises calcareous, ferrous and siliceous particles with the particle size of 2-30 mm, and is also doped with organic materials which are difficult to degrade.
Preferably, the organic material which is difficult to degrade is chaff.
In order to achieve the technical purpose, the method scheme of the invention is as follows: a high-load underground infiltration sewage treatment method adopts an aerobic section and an anoxic section which are mutually coupled to carry out sewage treatment, wherein: sewage intermittently enters the aerobic section to enable the aerobic section to be in a wet/dry alternating environment, and ventilation and oxygen supply are carried out on the aerobic section during the dry falling period of the aerobic section in a dry environment; sewage enters an anoxic section after being treated by an aerobic section, and the anoxic section is an anoxic environment for long-term flooding.
Further, after the sewage treatment operation is started for 5-10 days after the sewage is fed for the first time, inoculating short-range denitrifying bacteria and anammox bacteria into the anoxic section; and then, when sewage is intermittently fed into the anoxic section each time, a certain amount of sewage is required to be injected into the anoxic section, and the amount of the sewage injected into the anoxic section is regulated according to the standard requirement of the discharged water quality.
Further, an organic carbon source adding layer is arranged at the top of the anoxic section, and an adding pipe for adding the organic carbon source, the short-range denitrifying bacteria and the anaerobic ammonia oxidizing bacteria is buried in the organic carbon source adding layer; the sewage injected into the anoxic section, the inoculated short-range denitrifying bacteria and the anaerobic ammonia oxidizing bacteria are treated by the feeding pipe.
The beneficial effects of the invention are mainly as follows:
(1) According to the invention, through coupling aerobic biological treatment with anoxic denitrification and anaerobic ammoxidation, the original sewage is utilized to provide an organic carbon source for denitrification reaction, so that the problem that denitrification reaction is inhibited due to lack of the organic carbon source in the conventional process is solved, and the denitrification effect is greatly improved while the quality of effluent is ensured;
(2) According to the invention, a certain amount of raw sewage directly enters the anoxic section, so that the planar load of the aerobic section is reduced, and the land area of the anoxic section can be correspondingly reduced;
(3) The anaerobic denitrification reaction system is integrated below the aerobic section, so that an advanced treatment (constructed wetland) unit is omitted, the land is saved, and the investment is further reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a preferred embodiment of the wastewater treatment system of the present invention.
Detailed Description
The invention is further illustrated in the following, in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. It is needless to say that the person skilled in the art realizes that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive in scope.
In connection with the preferred embodiment of the present invention, as shown in fig. 1, the technical principle of the present invention will be described in detail:
Sewage entering the aerobic section through the primary water dispersing pipe flows laterally in broken stones in the water dispersing layer and downwards moves to penetrate the biological filter layer of the aerobic section due to the action of gravity, wherein pollutants are intercepted, adsorbed and precipitated by the passing filter material and removed through the decomposition and conversion of microorganisms attached to the surfaces of the filter material particles; the organic matters are biologically mineralized to form CO 2 and H 2 O, and ammonia nitrogen forms NO 3 - and a small amount of NO 2 - under the action of ammonia oxidizing bacteria and nitrifying bacteria.
The sewage treated by the aerobic section is mixed with the raw sewage entering from the feeding pipe at the top of the anoxic section. Denitrifying bacteria utilize organic carbon in raw sewage as an electron donor and an energy source to perform denitrification, and the related reactions are as follows:
NO3 -+2H+→NO2 -+H2O (1)
NO2 -+4H+→0.5N2+2H2O (2)
CH 2 O (organic) -4e -→CO2+H2 O+ energy (3)
Since NO 3 - is more easily reduced than NO 2 -, i.e., reaction (1) proceeds more easily than reaction (2), the concentration of NO 2 - in the wastewater increases. Meanwhile, ammonia nitrogen in an anoxic section is taken from the original sewage to react with NO 2 - under the action of anaerobic ammonia oxidizing bacteria to generate N 2 and a small amount of NO 3 -, and the reaction is as follows:
NH4 ++1.32NO2 -+0.066HCO3 -+0.13H+→
1.02N2+0.26NO3 -+0.033CH4ON0.3+2.03H2O
the anaerobic biological filter material can exert the water quality purifying function while removing organic matters, oxynitride and ammonia nitrogen in the sewage through denitrification and anaerobic ammoxidation, and ensures that the system effluent is stable and reaches the standard.
Best mode in fig. 1, the high-load subsurface infiltration sewage treatment system is composed of an upper aerobic section and a lower anoxic section.
The aerobic section comprises a covering layer 1, a primary water dispersing layer 2, a first biological filtering layer 3, a secondary water dispersing layer 4, a second biological filtering layer 5, a fine filtering layer 6 and an air distribution layer 7 from top to bottom, wherein the covering layer is used for beautifying the environment and preserving heat; the anoxic section is sequentially provided with an organic carbon source adding layer 8, an anaerobic biological filtering layer 9 and a water collecting layer 10 from top to bottom.
Wherein, the primary water dispersing layer 2 is embedded with a primary water dispersing pipe 12, the secondary water dispersing layer 4 is embedded with a secondary water dispersing pipe 13, and the air distributing layer 7 is embedded with an air distributing pipe 16; the organic carbon source adding layer 8 is buried with an adding pipe 17; the water collecting layer 10 is embedded with a water collecting pipe 18. A vertical guide pipe 14 passes through the first biological filter layer 3, and the lower end of the vertical guide pipe 14 is connected with a secondary water dispersing pipe 13; the secondary water dispersing pipe 13 is connected with the feeding pipe 17 through a flow crossing pipe 15, and the position of the flow crossing pipe 15 is 5-10 cm higher than that of the secondary water dispersing pipe 13; the primary water dispersing pipe 12 is connected with the sewage inlet pipe 11; the air distribution pipe 16 is connected with a fan through a ventilation pipe 19; the feeding pipe 17 is connected with the water inlet pipe 11 through a ball valve 20; the water collecting pipe 18 is connected with a water discharging pipe 21, and the elevation of the water discharging hole 22 is similar to that of the feeding pipe 17.
In a preferred embodiment, the cover layer 1 may be green land, dry land, earth float or partially hardened ground, etc.; the primary water-dispersing layer 2, the secondary water-dispersing layer 4, the gas distribution layer 7, the organic carbon source adding layer 8 and the water collecting layer 10 are all composed of gravels with the particle size of 10-40 mm. The first biological filter layer 3 and the second biological filter layer 5 are mixed filter materials of river sand, ceramsite, zeolite and fly ash, and the saturated water permeability coefficient is 1 multiplied by 10 -1 cm/s to 5 multiplied by 10 -1 cm/s; the fine filtering layer 6 is formed by mixing fine sand, ceramsite, activated carbon, calcareous soil and sandy soil, and the saturation permeability coefficient is 1 multiplied by 10 -2～3×10-2 cm/s; one end of the overflow pipe 15 is connected with a secondary water dispersing pipe, the other end is connected with an organic carbon source adding pipe, and the highest point position of the bottom of the overflow pipe is 5-10 cm higher than the secondary water dispersing pipe; the height of the pipe orifice at the top end of the vertical flow guide pipe is consistent with the top surface of the upper anti-blocking layer.
All the pipes are PVC pipes or UPVC pipes, and can be pipes made of other materials. The diameters of the primary water dispersing pipe 12 and the secondary water dispersing pipe 13 are 50-160 mm, and water dispersing holes are formed in the two sides and the bottom; the diameter of the air distribution pipe 16 is 50-160 mm, and the pipe wall is provided with air distribution holes; the diameter of the feeding pipe 17 is 50-160 mm, and water scattering holes are formed in the two sides and the bottom of the feeding pipe; the diameter of the water collecting pipe 18 is 50-200 mm, and the pipe wall is provided with water collecting holes.
The high-load underground infiltration sewage treatment system with coupling of aerobiotic and anoxic is intermittently fed with water, and in the optimal condition, the water is fed for 8 times every day, and proper ventilation and oxygen supply are carried out on the aerobiotic section through the ventilation pipe 19 and the air distribution pipe 16 during the dry falling period of the aerobiotic section, and the specific operation method is as follows: closing the ball valve 20 to enable the sewage to enter the sewage treatment system (coupling of aerobic and anoxic) from the primary water dispersing pipe 12; inoculating short-range denitrifying bacteria and anaerobic ammonia oxidizing bacteria from the feeding pipe 17 after the sewage treatment operation is started for 5-10 days after the first sewage feeding; then, moderately opening the ball valve 20, and injecting a certain amount of sewage into the anoxic section when sewage is intermittently fed into the anoxic section each time, so that 20-40% of sewage directly enters the anoxic section from the feeding pipe 17; after the water quality of the effluent of the system is stable, the ball valve 20 is regulated according to the standard requirement of the discharged water quality so as to regulate the sewage quantity entering from the feeding pipe.
The following is a group of experimental data, the treated sewage is the domestic sewage of the Guangzhou geochemistry research institute of China academy of sciences, the sewage is fed for 8 times per day, the hydraulic load is 80cm/d, after the sewage treatment system is stabilized, the main pollutant concentration of the sewage is SS=80-130 mg/l, COD Cr＝150～300mg/l,NH3 -N=35-55 mg/l, TN=35-60 mg/l and TP=2.6-4.2 mg/l after being monitored for months; after the treatment of the composite system, SS is less than 10mg/l, COD Cr＝30～40mg/l,NH3 -N=2-4 mg/l, TN=10-15 mg/l, TP=0.2-0.8 mg/l, and the effluent is clear, colorless and odorless.
The foregoing has shown and described the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A high-load subsurface infiltration wastewater treatment system comprising an aerobic section and an anoxic section coupled to each other, wherein:
Mineralizing organic matters in the sewage into CO 2 and H 2 O in the aerobic section, and oxidizing ammonia nitrogen into NO 3 - and NO 2 -; the aerobic section comprises a water dispersing pipe, a gas distribution pipe and a filter material; the water dispersing pipe is connected with the sewage inlet pipe and is positioned at the upper part of the aerobic section; the air distribution pipe is connected with the fan and is arranged near the bottom of the aerobic section; the filter material is a single layer or a plurality of layers;
The anoxic zone converts NO 3 - and NO 2 - to N 2 by denitrification; the aerobic section is positioned at the upper part of the anoxic section;
an organic carbon source adding layer is arranged at the top of the anoxic section, and an adding pipe for adding the organic carbon source, the short-range denitrifying bacteria and the anaerobic ammonia oxidizing bacteria is buried in the organic carbon source adding layer; the bottom of the anoxic section is a water collecting layer, wherein a water collecting pipe is buried in the anoxic section; an anoxic biological filter layer is arranged between the organic carbon source adding layer and the water collecting layer; the water collecting pipe is connected with a water draining pipe; the height of the water outlet pipe is similar to that of the feeding pipe.
2. The high-load subsurface infiltration sewage treatment system according to claim 1, wherein the organic carbon source adding layer and the water collecting layer of the anoxic section are made of stone materials with the particle size of 10-40 mm.
3. The high-load underground infiltration sewage treatment system according to claim 1, wherein the feeding pipe of the anoxic section adopts a PVC pipe or a UPVC pipe with uniform holes on the pipe wall; the water collecting pipe of the anoxic section is a PVC pipe or a UPVC pipe with water collecting holes on the pipe wall.
4. The high load subsurface infiltration sewage treatment system according to claim 1, wherein the anoxic biological filter layer is mainly composed of calcareous, ferrous and siliceous particles having a particle size of 2 to 30mm, and is further incorporated with an organic material which is difficult to degrade.
5. The high load subsurface infiltration wastewater treatment system according to claim 4, wherein the refractory organic material is chaff.
6. A high-load underground infiltration sewage treatment method is characterized in that an aerobic section and an anoxic section which are mutually coupled are adopted for sewage treatment, wherein: sewage intermittently enters the aerobic section to enable the aerobic section to be in a wet/dry alternating environment, and ventilation and oxygen supply are carried out on the aerobic section during the dry falling period of the aerobic section in a dry environment; sewage enters an anoxic section after being treated by an aerobic section, and the anoxic section is a long-term flooding anoxic environment;
Inoculating short-range denitrifying bacteria and anaerobic ammonia oxidizing bacteria to the anoxic section after the sewage treatment operation is started for 5-10 days after the first sewage inlet; and then, when sewage is intermittently fed into the anoxic section each time, a certain amount of sewage is required to be injected into the anoxic section, and the amount of the sewage injected into the anoxic section is regulated according to the standard requirement of the discharged water quality.
7. The high-load underground infiltration sewage treatment method according to claim 6, wherein an organic carbon source adding layer is arranged at the top of the anoxic section, and an adding pipe for adding the organic carbon source, the short-range denitrifying bacteria and the anaerobic ammonia oxidizing bacteria is buried in the organic carbon source adding layer; the sewage injected into the anoxic section, the inoculated short-range denitrifying bacteria and the anaerobic ammonia oxidizing bacteria are all implemented through the feeding pipe.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010011875A (en) * | 1999-07-30 | 2001-02-15 | 채문식 | Method and Apparatus of Biological Nitrogen Removal from the High Concentration Industrial Wastewater |
| CN106006963A (en) * | 2016-05-28 | 2016-10-12 | 北京工业大学 | Device and method for synchronous SBR denitrifying phosphorus removal and internal source short-range denitrifying anaerobic ammonia oxidation |
| CN109592787A (en) * | 2019-01-22 | 2019-04-09 | 湖南中科环保技术有限公司 | A kind of efficient denitrification filters sewage water treatment method ecologically |
| CN210367149U (en) * | 2019-07-11 | 2020-04-21 | 广州碧疆环境科技有限公司 | High-load subsurface infiltration sewage treatment system with efficient denitrification function |
-
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010011875A (en) * | 1999-07-30 | 2001-02-15 | 채문식 | Method and Apparatus of Biological Nitrogen Removal from the High Concentration Industrial Wastewater |
| CN106006963A (en) * | 2016-05-28 | 2016-10-12 | 北京工业大学 | Device and method for synchronous SBR denitrifying phosphorus removal and internal source short-range denitrifying anaerobic ammonia oxidation |
| CN109592787A (en) * | 2019-01-22 | 2019-04-09 | 湖南中科环保技术有限公司 | A kind of efficient denitrification filters sewage water treatment method ecologically |
| CN210367149U (en) * | 2019-07-11 | 2020-04-21 | 广州碧疆环境科技有限公司 | High-load subsurface infiltration sewage treatment system with efficient denitrification function |
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| CN110182953A (en) | 2019-08-30 |
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