CN117417088A - Be applied to sewage treatment integration equipment that agricultural waste handled - Google Patents
Be applied to sewage treatment integration equipment that agricultural waste handled Download PDFInfo
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- CN117417088A CN117417088A CN202311606005.4A CN202311606005A CN117417088A CN 117417088 A CN117417088 A CN 117417088A CN 202311606005 A CN202311606005 A CN 202311606005A CN 117417088 A CN117417088 A CN 117417088A
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- sewage
- water inlet
- speed reducing
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- 239000010865 sewage Substances 0.000 title claims abstract description 70
- 239000002154 agricultural waste Substances 0.000 title claims abstract description 14
- 230000010354 integration Effects 0.000 title claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000010802 sludge Substances 0.000 claims abstract description 50
- 239000012535 impurity Substances 0.000 claims abstract description 15
- 230000003647 oxidation Effects 0.000 claims abstract description 14
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 claims description 36
- 238000005273 aeration Methods 0.000 claims description 33
- 239000002245 particle Substances 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 21
- 230000000087 stabilizing effect Effects 0.000 claims description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims 3
- 230000000813 microbial effect Effects 0.000 claims 2
- 238000009792 diffusion process Methods 0.000 claims 1
- 244000005700 microbiome Species 0.000 abstract description 10
- 239000002120 nanofilm Substances 0.000 abstract description 6
- 238000000354 decomposition reaction Methods 0.000 abstract description 5
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract 1
- 239000002881 soil fertilizer Substances 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003895 organic fertilizer Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater 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
-
- 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
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- 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
- C02F3/02—Aerobic processes
-
- 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
- C02F3/28—Anaerobic digestion processes
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
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)
Abstract
The invention relates to the technical field of sewage treatment, in particular to sewage treatment integrated equipment applied to agricultural waste treatment, which comprises a water inlet pretreatment section, a sludge removal section, an anaerobic biochemical treatment section, an aerobic biochemical treatment section and an advanced oxidation section which are sequentially connected, wherein the water inlet section and the sludge removal section pretreat sewage entering the equipment to remove solid impurities, the anaerobic biochemical treatment section carries out microorganism treatment in an anaerobic state, the aerobic biochemical treatment section carries out microorganism treatment under an aerobic condition, and the sludge removal section and the sludge discharge position are separated from a water body part. The sewage flows through the device in sequence, the sewage is pretreated to remove impurity and impurity respectively, anaerobic treatment is carried out to remove most of soluble organic pollutants, aerobic biochemical treatment is carried out to remove ammonia nitrogen and organic matters, advanced oxidation stage enables deep and strong oxidation of the sewage to remove organic matters, an independent sludge molecular film decomposition module is placed beside the device, and sludge is transferred into the molecular film decomposition module to form soil fertilizer. The integrated equipment and the whole pry block are installed.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to sewage treatment integrated equipment applied to agricultural waste disposal.
Background
Agricultural waste, especially farm waste, has a large amount of biological sewage to be treated, and if the sewage is discharged naturally directly, a large amount of nitrogen, phosphorus, potassium elements and organic matters in the sewage can cause eutrophication of water areas to affect the environmental ecology, so the sewage is discharged after the sewage is treated.
The existing small-sized farms mainly adopt a three-stage sedimentation tank as a sewage treatment means due to cost consideration.
The three-stage sedimentation tank has the following defects as a sewage treatment means: the treatment effect is limited: when the three-stage sedimentation tank is used for treating sewage, the water quality is mainly purified through gravity sedimentation and sedimentation of suspended matters, however, as the sewage contains higher suspended matters, organic matters and the like, the treatment effect of the three-stage sedimentation tank is limited, and harmful matters and pollutants can not be completely removed; the occupied space is larger: the tertiary sedimentation tank generally needs a larger occupied area, which may be a disadvantageous factor for a small-sized farm, and due to the limitation of land resources, the small-sized farm often cannot provide enough space to construct a large-sized tertiary sedimentation tank, so that the limitation of treatment effect is caused, and sludge cannot be directly taken out from a sedimentation place in a suction manner, because the sludge cannot be distinguished from surrounding water, the sludge needs to be manually judged and cleaned according to time, the treatment efficiency is affected, and the labor is consumed.
Disclosure of Invention
The invention aims to provide a sewage treatment integrated device applied to agricultural waste disposal, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the integrated equipment comprises a water inlet section, a mud removing section, an anaerobic biochemical treatment section and an aerobic biochemical treatment section which are sequentially connected, wherein the water inlet section and the mud removing section pretreat sewage entering the equipment to remove solid impurities, the anaerobic biochemical treatment section carries out microorganism treatment in an anaerobic state, the aerobic biochemical treatment section carries out microorganism treatment in an aerobic condition, the mud discharging position of the mud removing section is separated from a water body part, and the advanced oxidation section removes organic matters under a strong oxygen condition.
The sewage sequentially flows through a water inlet section, a mud removing section, an anaerobic biochemical treatment section and an aerobic biochemical treatment section, and is respectively pretreated to remove impurity and impurities, anaerobic treatment is carried out to remove most of soluble organic pollutants, and biochemical aerobic treatment is carried out to further remove organic matters, so that the wastewater is deeply purified. The sludge discharge position of the desilting section is separated from the main overflowed water body part, so that sludge discharge is not performed, a large amount of sewage is not discharged together with the sludge, and only continuous collection of particle residues from the water inlet section, collection of sludge from the desilting section, collection of biogas from the anaerobic biochemical treatment section and collection of purified sewage from the aerobic biochemical treatment section are needed.
The water inlet section comprises a water inlet pipe, a screw feeder and a filter screen, the water inlet pipe is vertically arranged at one side of the mud removing section, the upper end of the water inlet pipe is used as a flow inlet of the integrated equipment,
the middle position of the water inlet pipe is obliquely inserted into the end part of the screw feeder, one end of the screw feeder, which is far away from the water inlet pipe, is higher than one end of the screw feeder, which is connected with the water inlet pipe, the slag discharging port is formed in one end of the screw feeder, which is far away from the water inlet pipe, and a filter screen is arranged at a position, which is lower than the screw feeder, in the water inlet pipe.
The sewage entering the equipment is subjected to primary filtration at the filter screen to filter out large-particle impurities, and impurities with small granularity are accumulated in front of the filter screen only through the sewage, the screw feeder is obliquely lifted and discharged from the other end, and a charging barrel can be arranged below the screw feeder to be connected.
The filter screen is obliquely arranged, and the surface of the filter screen is parallel to the rotating shaft of the screw feeder.
The filter screen which is obliquely arranged prevents dead areas which cannot be reached by the screw feeder from being remained at the position in front of the screen, and sundries filtered by the filter screen can be lifted and transferred in time and are not accumulated at the position in front of the screen.
The mud removing section comprises a speed reducing cavity, a bubble tube, a scraper belt, a bending drainage channel, a mud groove and a differential pressure compensation structure, wherein the side surface of the speed reducing cavity is inserted into a water inlet pipe, a plurality of bubble tubes are horizontally arranged at the bottom of the speed reducing cavity, the end part of the bubble tube penetrates through the side wall of the speed reducing cavity to be connected with an external air source, the scraper belt is arranged at the top of the speed reducing cavity, the bending drainage channel is arranged on the side wall of the speed reducing cavity close to the top, the inlet position of the bending drainage channel is upward, the outflow end of the bending drainage channel is connected with an anaerobic biochemical treatment section, the differential pressure compensation structure is arranged in the bending drainage channel, the mud groove is arranged at the side of the top of the speed reducing cavity, the scraper belt horizontally covers the speed reducing cavity and the mud groove, the side wall at the bottom of the mud groove is externally provided with a mud port,
the pressure difference generated by the pressure difference compensation structure in the bent drainage channel is equal to the water pressure difference caused by the height difference between the outlet of the bent drainage channel and the upper edge of the sludge tank;
the bubble tube surface is provided with a plurality of holes, gas in the holes is separated from the bubble tube only when particles scratch the bubble tube surface, and the top of the speed reducing cavity is provided with an exhaust port.
The sludge removing section is used for removing suspended matters in sewage, the sludge enters the speed reducing cavity from the water inlet pipe, then the sewage flows upwards, when the bending guide channel is reached, the sewage cannot overflow and passes through, a certain liquid level is required to be accumulated again, until the liquid in the speed reducing cavity reaches the upper edge of the sludge trough, the water in the speed reducing cavity can sufficiently pass through the bending guide channel to flow to the subsequent anaerobic biochemical treatment section, when the sewage passes through the bubble tube, the bubble tube does not continuously aerate, only when the particles contact the gas in the holes, a small group of gas is pulled out and flows upwards along with the particles, the buoyancy of the particles attached with a certain gas is larger, the particles are converged at the liquid level in the speed reducing cavity, the inlet position of the bending guide channel is upwards, the particles in the floating process are prevented from entering the bending guide channel, only the water body part of the sewage enters the bending guide channel to the subsequent anaerobic biochemical treatment section, the particles suspended matters at the upper part of the speed reducing cavity are scraped by the scraper belt in the circulating motion to the sludge trough, the water at the lower part of the speed reducing cavity is separated from the sludge trough, the speed reducing cavity is taken away from the sludge trough, the liquid in the position of the speed reducing cavity is required to rise to the position along the scraper belt, and the liquid in the position can be directly led to the position of the bending guide channel to reach the bending channel without high resistance after the bending guide channel, and the bending guide channel is not reached.
The section of the bubble tube outside the speed reducing cavity is provided with a pressure stabilizing structure, and the pressure stabilizing structure adjusts the pressure of the liquid in the bubble tube connected with the pressure stabilizing structure to be equal to the height; the bubble tube has at least two layers of unequal height, the projection of all bubble tubes on the horizontal plane covering the entire cross section of the deceleration chamber.
The gas pressure in the bubble tube is equal to the pressure of the liquid at the same height, so that the gas in the bubble tube forms bubbles and leaves the bubble tube, and the ideal bubble state equation in the liquid is: the pressure difference exists between the pressure inside the bubble and the pressure outside the bubble and the sum of the pressure outside the bubble and the tension of a bubble film, under any condition, the pressure in the complete bubble is higher than the outside, so that the pressure in the bubble tube can not form stable bubbles which continuously flow only when reaching the pressure of liquid at the height, and the pressure difference is also the condition that the application needs to avoid in a mud removing section, because the turbulence degree of sewage flow in a speed reducing cavity can be increased by excessive bubbles, a large amount of particles and even small bubbles enter the rear anaerobic biochemical treatment section along with a water body, a large amount of gas is introduced into the speed reducing cavity, the oxygen content in the sewage is increased, the effect of the rear anaerobic treatment is influenced, the conditions of suspended particles in the sewage are different when passing through the bubble tube, the surface of the suspended particles are microscopically uneven, a small group of gas is easy to be adsorbed, the suspended particles can be drawn out when flowing through holes on the surface of the bubble tube to form a combined body, the upward buoyancy of the suspended particles is further prevented, and the solid substances are prevented from entering a bending guide channel.
The pressure stabilizing structure comprises a hard cavity and a flexible pressure sensing area, and the flexible pressure sensing area is contacted with liquid with the same depth. The pressure stabilizing structure is mainly rigid, a small area is sealed by a flexible film, for example, the film is immersed into liquid with the same depth as the bubble tube on the outward side, the pressure stabilizing structure is equivalent to a gas buffering position, the pressure fluctuation of an external supply gas source is eliminated, and the pressure stabilizing structure can be realized by a pressure regulating valve and the like.
The anaerobic biochemical treatment section comprises a tank body, an inflow hole, a baffle plate, an outflow hole and an exhaust hole, wherein the vertical baffle plate is arranged in the tank body, the inflow hole and the outflow hole are formed in the top of the side wall of the tank body, the exhaust hole is formed in the top of the tank body, the tank body is continuously connected in series, the outflow hole of the front-stage tank body is directly connected with the inflow hole of the rear-stage tank body, the inflow hole of the first-stage tank body is connected with the mud removing section, the outflow hole of the last-stage tank body is connected with the aerobic biochemical treatment section, the exhaust holes are collected and then used as a methane port of integrated equipment, the bottom of the tank body is provided with an emptying port, and the emptying port is normally closed.
Sewage enters the tank body to be subjected to anaerobic microorganism treatment, microorganisms can be arranged on the baffle plates and the inner wall of the tank body, a large amount of fully treated sewage soluble organic matters are removed, generated biogas is collected and stored at a biogas port, and the sewage continues to advance to an aerobic biochemical treatment section to be further purified.
The aerobic biochemical treatment section comprises a water storage cavity, an aeration cavity, diagonal flow plates, a lifting pump and an aeration pump, wherein the water storage cavity is communicated with a final-stage tank body, the aeration cavity is arranged above the water storage cavity, a plurality of diagonal flow plates are arranged in the aeration cavity, the side wall of the bottom of the aeration cavity is provided with a flow outlet, the top wall of the aeration cavity is provided with an exhaust port, the outlet of the lifting pump is connected with the inner top of the aeration cavity through a pipeline, the upper surface of the diagonal flow plates are provided with a plurality of dispersion air holes, and the diagonal flow plates are vertically and symmetrically inclined in sequence and are staggered in height, and are connected with the aeration pump from the side wall of the aeration cavity.
The sewage from the anaerobic biochemical treatment section can only flow into the water storage cavity at a low position by means of high potential energy, then flows into the aeration cavity to fall down after being pressurized and lifted by the lifting pump, the air continuously blows out from the surface of the inclined flow plate in the baffling process to increase the contact between the sewage and air, the inclined flow plate can be provided with a filler structure to simulate a wetland form, the sewage is further purified on a longer sewage flow path, the structure of the advanced oxidation section is approximately the same as that of the aerobic biochemical treatment section, the advanced oxidation section also has a cavity with water stored at the bottom and a cavity with chemical adding treatment at the upper part, the top wall of the chemical adding treatment cavity is provided with a chemical agent by a chemical adding machine, the chemical adding treatment cavity has strong oxidizing property, organic matters are further removed, and then the side wall at the bottom of the chemical adding cavity starts to flow out for discharging.
Compared with the prior art, the invention has the following beneficial effects: the device adopts a mode of anaerobic treatment and biochemical treatment, has a multi-stage purification structure, efficiently removes organic wastes, and has strong degradation capability; the integrated equipment and the integral prying block are installed; adopting an anaerobic treatment process, and enabling anaerobic bacteria to generate renewable energy sources such as methane when growing and metabolizing in an anaerobic environment; the sludge collecting position leaves the water body part, so that the additional dewatering operation of the sludge is prevented, the water body is discharged from the sludge port, no solid sedimentation position exists in the equipment, the shutdown and sludge removal times are reduced, and the maintenance period is prolonged. The sludge with low moisture content is directly put into a molecular film decomposing module arranged aside, and the enclosed environment undergoes composting fermentation for a certain time to become an organic fertilizer byproduct.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic flow diagram of the present invention;
fig. 2 is view a of fig. 1;
FIG. 3 is a schematic illustration of the action at a bubbler tube of the present invention;
FIG. 4 is a schematic diagram of the structure of the anaerobic biochemical treatment section of the present invention;
FIG. 5 is a schematic diagram of the structure of the aerobic biochemical treatment section according to the present invention;
FIG. 6 is a schematic top view of the present invention;
in the figure: 1. a water inlet section; 11-a water inlet pipe, 12 and a screw feeder; 13. a filter screen; 2. a mud removal section; 21. a deceleration chamber; 22. a bubble tube; 23. a scraper belt; 24. bending the drainage channel; 25. a sludge tank; 26. a differential pressure compensation structure; 27. a voltage stabilizing structure; 3. an anaerobic biochemical treatment section; 31. a tank body; 32. an inflow hole; 33. a baffle plate; 34. a discharge orifice; 35. an exhaust hole; 4. an aerobic biochemical treatment section; 41. a water storage cavity; 42. an aeration chamber; 43. a diagonal flow plate; 44. a lift pump; 45. an aeration pump; 5. a higher oxidation stage; 7. a base; 81. a feed port; 82. a slag discharge port; 83. a sludge port; 84. a biogas port; 85. an evacuation port; 86. an exhaust port; 87. a flow outlet; 9. and (3) sewage.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The integrated equipment comprises a water inlet section 1, a mud removing section 2, an anaerobic biochemical treatment section 3 and an aerobic biochemical treatment section 4 which are sequentially connected, wherein the water inlet section 1 and the mud removing section 2 pretreat sewage 9 entering the equipment to remove solid impurities, the anaerobic biochemical treatment section 3 carries out microorganism treatment in an anaerobic state, the aerobic biochemical treatment section 4 carries out microorganism treatment in an aerobic condition, the mud discharging position of the mud removing section 2 is separated from a water body part, and the advanced oxidation section 5 removes organic matters in a strong oxygen condition.
As shown in fig. 1 and 2, sewage flows through a water inlet section 1, a mud removing section 2, an anaerobic biochemical treatment section 3 and an aerobic biochemical treatment section 4 in sequence, and is respectively pretreated to remove impurity and impurity, anaerobic treatment to remove most of soluble organic pollutants, and biochemical aerobic treatment to further remove organic matters, so that the sewage is deeply purified. The sludge discharge position of the desilting section 2 is separated from the main overflowed water body part, so that the sludge discharge is not performed, a large amount of sewage is not discharged along with the sludge, and only continuous collection of particle residues from the water inlet section 1, collection of sludge from the desilting section 2, collection of biogas from the anaerobic biochemical treatment section 3 and collection of purified sewage from the aerobic biochemical treatment section 4 are needed. The integrated equipment can be welded and fixed on the base 7 of the channel steel and the steel plate, a plurality of downward water outlet positions are erected at small heights, and if the integrated equipment is required to be fixed during installation, the base 7 is provided with foot holes.
The water inlet section 1 comprises a water inlet pipe 11, a screw feeder 12 and a filter screen 13, the water inlet pipe 11 is vertically arranged at one side of the mud removing section 2, the upper end of the water inlet pipe 11 is used as a water inlet 81 of the integrated equipment,
the middle position of the water inlet pipe 11 is obliquely inserted into the end part of the screw feeder 12, one end of the screw feeder 12, which is far away from the water inlet pipe 11, is higher than one end of the screw feeder 12, which is connected with the water inlet pipe 11, the slag discharging port 82 is formed in one end of the screw feeder 12, which is far away from the water inlet pipe 11, and the filter screen 13 is arranged at a position, which is lower than the screw feeder 12, in the water inlet pipe 11.
As shown in fig. 1, the sewage entering the equipment is subjected to primary filtration at the filter screen 3 to remove large-particle impurities, and the impurities are accumulated in front of the filter screen 3 only through the sewage and the impurities with small granularity, the screw feeder 12 is obliquely lifted and discharged from the other end, and a charging barrel can be arranged below the screw feeder to accept.
The filter screen 3 is obliquely arranged, and the surface of the filter screen 3 is parallel to the rotating shaft of the screw feeder 12.
As shown in fig. 1, the obliquely arranged filter screen 3 prevents dead areas which cannot be reached by the screw feeder 12 from remaining at the position in front of the screen, and sundries filtered by the filter screen 3 can be lifted and transferred in time without being accumulated at the position in front of the screen.
The mud removing section 2 comprises a speed reducing cavity 21, a foaming pipe 22, a scraper belt 23, a bending drainage channel 24, a sludge groove 25 and a pressure difference compensation structure 26, wherein the side surface of the speed reducing cavity 21 is inserted into the water inlet pipe 11, a plurality of foaming pipes 22 are horizontally arranged at the bottom of the speed reducing cavity 21, the end parts of the foaming pipes 22 penetrate through the side walls of the speed reducing cavity 21 to be connected with an external air source, the scraper belt 23 is arranged at the top of the speed reducing cavity 21, the bending drainage channel 24 is arranged on the side wall of the speed reducing cavity 21 close to the top, the inlet position of the bending drainage channel 24 is upward, the outflow end of the bending drainage channel 24 is connected with the anaerobic biochemical treatment section 3, the pressure difference compensation structure 26 is arranged in the bending drainage channel 24, the side of the top of the speed reducing cavity 21 is provided with the sludge groove 25, the scraper belt 23 horizontally covers the speed reducing cavity 21 and the sludge groove 25, the side wall at the bottom of the sludge groove 25 is provided with a sludge port 83,
the pressure difference generated by the pressure difference compensation structure 26 in the bending guide channel 24 is equal to the water pressure difference caused by the height difference between the outlet of the bending guide channel 24 and the upper edge of the sludge tank 25;
the bubble tube 22 has a plurality of holes on the surface, the gas in the holes is separated from the bubble tube 22 only when the particles scratch the surface of the bubble tube 22, and the top of the speed reducing cavity 21 is provided with a gas outlet 86.
As shown in fig. 1, 2 and 3, the sludge removing section 2 is used for removing suspended matters in sewage, sludge enters the speed reducing cavity 21 from the water inlet pipe 11, then the sewage flows upwards, when reaching the bending guide channel 24, the sewage cannot overflow and passes through, a certain liquid level is required to be accumulated again, until the liquid in the speed reducing cavity 21 reaches the upper edge height of the sludge trough 25, the water in the speed reducing cavity 21 is enough to flow to the subsequent anaerobic biochemical treatment section 3 through the bending guide channel 24, when the sewage 9 passes through the foaming pipe 22, the foaming pipe 22 is in a continuous aeration mode, only when the particles contact the gas in the holes, the small-lump gas is pulled out and flows upwards along with the particles, the buoyancy of the particles attached with the certain gas is larger, the particles are converged to the liquid level in the speed reducing cavity 21, the inlet position of the bending guide channel 24 is upward, the particles in the floating process are prevented from entering the bending guide channel 24, only the water body part of the sewage 9 enters the bending guide channel 24 and goes forward to the subsequent anaerobic biochemical treatment section 3, the suspended matters at the upper part of the speed reducing cavity 21 are circularly moved by the scraper blade 23, and the sludge is not required to be directly lifted to reach the position of the speed reducing cavity 23 along the lower edge height of the sludge trough 21, and the water level is not required to be directly lifted to reach the position of the speed reducing cavity 23, and cannot be directly bent to reach the position of the speed reducing cavity 24.
The bubble tube 22 is provided with a pressure stabilizing structure 27 on the section outside the speed reducing cavity 21, and the pressure stabilizing structure 27 adjusts the pressure of the liquid with the same height in the bubble tube 22 connected with the pressure stabilizing structure 27; the bubble tube 22 has at least two layers of unequal height, the projection of all bubble tubes 22 onto the horizontal plane covering the entire cross section of the deceleration chamber 21.
As shown in FIG. 3, the gas pressure within the bubble tube 22 is equal to the pressure of the liquid at the same height, so that the gas within the bubble tube 22 forms a bubble and exits the bubble tube 22 under conditions where the ideal bubble state equation in the liquid is: the pressure difference exists between the pressure inside the bubble and the pressure outside the bubble and the sum of the pressure outside the bubble and the tension of the bubble film, under any condition, the pressure in the complete bubble is higher than the outside, so that the pressure in the bubble tube 22 can not form stable bubbles which continuously flow only when reaching the height, and the stable bubbles are also the condition to be avoided in the mud removing section, because the excessive bubbles can aggravate the turbulence degree of sewage flow in the speed reducing cavity 21, a large amount of particles and even small bubbles enter the rear anaerobic biochemical treatment section along with the water body, a large amount of gas is introduced into the speed reducing cavity 21, the oxygen content in the sewage is increased, the effect of the rear anaerobic treatment is influenced, the condition of the suspended particles in the sewage is different when passing through the bubble tube 22, the surface of the suspended particles is microscopically uneven, a small group of gas is easy to be adsorbed, the suspended particles can be drawn out when flowing from the surface holes of the bubble tube 22 to form a combined body, the upward buoyancy of the suspended particles is further prevented, and the solid substances are prevented from entering the bending guide channel 24.
The pressure stabilizing structure 27 includes a rigid chamber and a flexible pressure sensing region that contacts the same depth of liquid. As shown in fig. 3, the pressure stabilizing structure 27 is mostly rigid, a small area is closed by a flexible film, for example, the film is immersed into the liquid with the same depth as the bubble tube 22 on the outward side, the pressure stabilizing structure 27 corresponds to a gas buffer position, the pressure fluctuation of the external supply gas source is eliminated, and the pressure stabilizing structure can also be realized by a pressure regulating valve and the like.
The anaerobic biochemical treatment section 3 comprises a tank body 31, an inflow hole 32, a baffle plate 33, an outflow hole 34 and an exhaust hole 35, wherein the vertical baffle plate 33 is arranged in the tank body 31, the inflow hole 32 and the outflow hole 34 are arranged at the top of the side wall of the tank body 31, the exhaust hole 35 is arranged at the top of the tank body 31, the tank body 31 is continuously connected in series, the outflow hole 34 of the front-stage tank body 31 is directly connected with the inflow hole 32 of the rear-stage tank body 31, the inflow hole 32 of the first-stage tank body 31 is connected with the mud removing section 2, the outflow hole 34 of the last-stage tank body 31 is connected with the aerobic biochemical treatment section 4, the exhaust holes 35 are collected and then used as a methane port 84 of integrated equipment, the bottom of the tank body 31 is provided with an exhaust port 85, and the exhaust port 85 is normally closed.
As shown in fig. 1 and 4, sewage enters the tank body 31 for anaerobic microorganism treatment, microorganisms can be arranged on the baffle plate 33 and the inner wall of the tank body 31, a large amount of fully treated sewage soluble organic matters are removed, generated biogas is collected and stored in the biogas port 84, and the sewage continues to advance to the aerobic biochemical treatment section 4 for further purification.
The aerobic biochemical treatment section 4 comprises a water storage cavity 41, an aeration cavity 42, diagonal flow plates 43, a lifting pump 44 and an aeration pump 45, wherein the water storage cavity 41 is communicated with the final-stage tank body 31, the aeration cavity 42 is arranged above the water storage cavity 41, a plurality of diagonal flow plates 43 are arranged in the aeration cavity 42, the side wall of the bottom of the aeration cavity 42 is connected with the advanced oxidation section 5, the top wall of the aeration cavity 42 is provided with an exhaust port 86, the outlet of the lifting pump 44 is connected with the inner top of the aeration cavity 42 through a pipeline, a plurality of dispersion air holes are formed in the upper surface of the diagonal flow plates 43, the diagonal flow plates 43 are vertically and symmetrically inclined in sequence and are staggered in height, and the diagonal flow plates 43 are connected with the aeration pump 45 from the side wall of the aeration cavity 42.
As shown in fig. 1 and 5, sewage from the anaerobic biochemical treatment section 3 can only flow into the low-level water storage cavity 41 by means of high potential energy, then is pressurized and lifted by the lifting pump 44, and then flows into the aeration cavity 42 to continuously flow down, in the baffling process, the surface of the diagonal flow plate 43 continuously blows out gas to increase the contact between the sewage and air, the diagonal flow plate 43 can be provided with a filler structure to simulate a wetland form, the sewage is further purified on a longer sewage flow path, the structure of the advanced oxidation section 5 is approximately the same as that of the aerobic biochemical treatment section 4, the advanced oxidation section 5 also has a bottom water storage cavity and an upper dosing cavity, the top wall of the dosing cavity is filled with chemicals by a dosing machine, the chemicals have strong oxidizing property, organic matters are further removed, and then the side wall of the bottom of the dosing cavity starts to discharge outlet 87.
As shown in fig. 6, the device can be used together with a molecular film decomposition module, wherein the molecular film decomposition module comprises an aeration system and an internet of things control system, and the sludge discharged from the sludge removal section is subjected to composting fermentation in a molecular film decomposition box body for a certain time in a high-temperature aerobic static fermentation mode to form the organic fertilizer.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. Be applied to agricultural waste treatment's sewage treatment integration equipment, its characterized in that: the integrated equipment comprises a water inlet section (1), a mud removing section (2), an anaerobic biochemical treatment section (3), an aerobic biochemical treatment section (4) and a high-grade oxidation section (5) which are sequentially connected, wherein the water inlet section (1) and the mud removing section (2) pretreat sewage (9) entering the equipment to remove solid impurities, the anaerobic biochemical treatment section (3) carries out microbial treatment in an anaerobic state, the aerobic biochemical treatment section (4) carries out microbial treatment under an aerobic condition, the mud discharging position of the mud removing section (2) is separated from a water body part, and the high-grade oxidation section (5) removes organic matters under a strong oxygen condition.
2. A sewage treatment integrated apparatus for agricultural waste disposal according to claim 1, wherein: the water inlet section (1) comprises a water inlet pipe (11), a screw feeder (12) and a filter screen (13), wherein the water inlet pipe (11) is vertically arranged at one side of the mud removing section (2), the upper end of the water inlet pipe (11) is used as a flow inlet (81) of the integrated equipment,
the middle position of the water inlet pipe (11) is obliquely inserted into the end part of the screw feeder (12), one end of the screw feeder (12) far away from the water inlet pipe (11) is higher than one end of the screw feeder (12) connected with the water inlet pipe (11), one end of the screw feeder (12) far away from the water inlet pipe (11) is provided with a slag discharging port (82), and a filter screen (13) is arranged at a position lower than the screw feeder (12) in the water inlet pipe (11).
3. A sewage treatment integrated apparatus for agricultural waste disposal according to claim 2, wherein: the filter screen (3) is obliquely arranged, and the surface of the filter screen (3) is parallel to the rotating shaft of the screw feeder (12).
4. A sewage treatment integrated apparatus for agricultural waste disposal according to claim 2, wherein: the mud removing section (2) comprises a speed reducing cavity (21), a bubble tube (22), a scraper blade belt (23), a bending diversion channel (24), a sludge groove (25) and a differential pressure compensation structure (26), wherein the side face of the speed reducing cavity (21) is inserted into a water inlet pipe (11), a plurality of bubble tubes (22) are horizontally arranged at the bottom of the speed reducing cavity (21), the end part of the bubble tube (22) penetrates through the side wall of the speed reducing cavity (21) to be connected with an external air source, the scraper blade belt (23) is arranged at the top of the speed reducing cavity (21), the bending diversion channel (24) is arranged on the side wall, close to the top, of the speed reducing cavity (21), the inlet position of the bending diversion channel (24) is upward, the outflow end of the bending diversion channel (24) is connected with an anaerobic biochemical treatment section (3), the differential pressure compensation structure (26) is arranged in the bending diversion channel (24), the side face of the top of the speed reducing cavity (21) is provided with a sludge groove (25), the scraper blade belt (23) horizontally covers the speed reducing cavity (21) and the sludge groove (25), the side wall at the bottom of the sludge groove (25) is provided with a sludge port (83),
the pressure difference generated by the pressure difference compensation structure (26) in the bending guide channel (24) is equal to the water pressure difference caused by the height difference between the outlet of the bending guide channel (24) and the upper edge of the sludge tank (25);
the surface of the bubble tube (22) is provided with a plurality of holes, gas in the holes is separated from the bubble tube (22) only when particles scratch the surface of the bubble tube (22), and the top of the speed reducing cavity (21) is provided with an exhaust port (86).
5. A wastewater treatment integrated apparatus for agricultural waste disposal of claim 4, wherein: the bubble tube (22) is provided with a pressure stabilizing structure (27) on a section outside the speed reducing cavity (21), and the pressure stabilizing structure (27) adjusts the pressure of liquid with the same height in the bubble tube (22) connected with the pressure stabilizing structure; the bubble tube (22) has at least two layers of unequal height, the projection of all bubble tubes (22) on a horizontal plane covering the entire cross section of the deceleration chamber (21).
6. A wastewater treatment integrated apparatus for agricultural waste disposal of claim 5, wherein: the pressure stabilizing structure (27) comprises a hard cavity and a flexible pressure sensing area, wherein the flexible pressure sensing area is contacted with liquid with the same depth.
7. A sewage treatment integrated apparatus for agricultural waste disposal according to claim 1, wherein: anaerobic biochemical treatment section (3) are including jar body (31), inlet opening (32), baffling board (33), outflow hole (34), exhaust hole (35), set up vertical baffling board (33) in jar body (31), jar body (31) lateral wall top sets up inlet opening (32) and outflow hole (34), jar body (31) top sets up exhaust hole (35), jar body (31) are a plurality of in succession, and the outflow hole (34) of preceding stage jar body (31) are directly to being connected with inlet opening (32) of the later stage jar body (31), and mud removal section (2) are connected in inlet opening (32) of the first stage jar body (31), and aerobic biochemical treatment section (4) are connected in outflow hole (34) of the last stage jar body (31), exhaust hole (35) collect the back and regard as integration equipment's marsh gas mouth (84), empty mouth (85) are all seted up to jar body (31) bottom, empty mouth (85) normally closed.
8. A wastewater treatment integrated apparatus for agricultural waste disposal of claim 7, wherein: the aerobic biochemical treatment section (4) comprises a water storage cavity (41), an aeration cavity (42), diagonal flow plates (43), a lifting pump (44) and an aeration pump (45), wherein the water storage cavity (41) is communicated with a final-stage tank body (31), the aeration cavity (42) is arranged above the water storage cavity (41), a plurality of diagonal flow plates (43) are arranged in the aeration cavity (42), the side wall of the bottom of the aeration cavity (42) is connected with a high-grade oxidation section (5), the top wall of the aeration cavity (42) is provided with an exhaust port (86), the outlet of the lifting pump (44) is connected with the inner top of the aeration cavity (42) through a pipeline, the upper surface of the diagonal flow plates (43) is provided with a plurality of diffusion air holes, and the diagonal flow plates (43) are vertically and symmetrically inclined in sequence and are staggered in height, and the diagonal flow plates (43) are connected with the aeration pump (45) from the side wall of the aeration cavity (42).
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| CN202311606005.4A CN117417088B (en) | 2023-11-29 | 2023-11-29 | Be applied to sewage treatment integration equipment that agricultural waste handled |
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| CN202311606005.4A CN117417088B (en) | 2023-11-29 | 2023-11-29 | Be applied to sewage treatment integration equipment that agricultural waste handled |
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| CN117417088B (en) | 2024-04-02 |
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