CN113003897A - Multistage air-lift solar integrated sewage treatment system - Google Patents
Multistage air-lift solar integrated sewage treatment system Download PDFInfo
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- CN113003897A CN113003897A CN202110439963.1A CN202110439963A CN113003897A CN 113003897 A CN113003897 A CN 113003897A CN 202110439963 A CN202110439963 A CN 202110439963A CN 113003897 A CN113003897 A CN 113003897A
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- 239000010865 sewage Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000007788 liquid Substances 0.000 claims abstract description 72
- 238000005273 aeration Methods 0.000 claims abstract description 41
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 238000005352 clarification Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 238000005265 energy consumption Methods 0.000 claims abstract description 6
- 238000004659 sterilization and disinfection Methods 0.000 claims description 70
- 239000010802 sludge Substances 0.000 claims description 51
- 238000005192 partition Methods 0.000 claims description 34
- 238000001556 precipitation Methods 0.000 claims description 31
- 238000004062 sedimentation Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000001154 acute effect Effects 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 5
- 238000004065 wastewater treatment Methods 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 25
- 239000011574 phosphorus Substances 0.000 description 25
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 24
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000003814 drug Substances 0.000 description 5
- 241000588724 Escherichia coli Species 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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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
- 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
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower or fuel cells
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
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- Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The application relates to a multistage air-lift solar integrated sewage treatment system, which comprises a biochemical treatment system and a solar power system and is characterized in that the biochemical treatment system is formed by an aeration mechanism, a biochemical combination area and all areas which are communicated through water pipes, the aeration mechanism is used for realizing backflow mixing and biochemical combination area stirring, and the solar power system supplies power to the system so as to reduce the energy consumption of the operation of the treatment system. The biochemical combination area comprises a solid-liquid clarification area and is arranged at the upper part of the biochemical combination area, the efficacy of the solid-liquid separation clarification area is realized through a solid-liquid separator, so as to prevent the setting of the solid-liquid separation clarification area from conflicting with an aeration mechanism, so that the system is exquisite, the treatment efficiency is improved, and the investment cost is reduced.
Description
Technical Field
The application relates to sewage and wastewater treatment facilities, in particular to a multistage air-lift solar integrated sewage treatment system.
Background
A2the/O method is short for Anaerobic/Anoxic/aerobic (Anaerobic/Oxic) process. The method adds a section of anaerobic biological treatment before the conventional anoxic/aerobic biological treatment systemThe process realizes the effects of removing nitrogen and phosphorus while removing organic pollutants. The anaerobic biochemical section is used as a biological selector, and phosphorus-accumulating bacteria release phosphorus under an anaerobic condition to obtain energy to create conditions for aerobic phosphorus absorption; in an aerobic biochemical section, microorganisms oxidize and decompose organic matters in sewage and wastewater under the condition of full dissolved oxygen, simultaneously carry out nitration and phosphorus accumulation reactions, and realize phosphorus removal by discharging residual activated sludge; in the anoxic biochemical section, part of the mixed liquid is refluxed from the aerobic section and is mixed with raw water entering the system, the nitrified liquid in the refluxed mixed liquid is utilized by denitrifying bacteria and is subjected to denitrification reaction, and the aim of nitrogen removal is achieved by releasing nitrogen. Thus, A2the/O process has to be provided with a mixed liquid reflux system and a sludge reflux system in an aerobic biochemical section and an anoxic biochemical section. Generally, the effect of nitrogen and phosphorus removal can be improved by increasing the reflux ratio. Due to A2the/O process has the characteristics and good economical efficiency, is a mature biochemical water treatment method at present, and is widely applied to treatment of urban sewage and industrial wastewater. However, the disadvantages of this process are: power equipment such as reflux pumps, mixers, plug flow devices and the like also increase power consumption. In addition, the existing solid-liquid separation clarification zone is in A2The container of the/O reactor is independently arranged outside, so the occupied area is large and the construction investment is high. At present, China is developing small-sized integrated rural equipment vigorously, but rural sewage treatment equipment is difficult to implement in operation cost, difficult to reach the standard of effluent and high in effluent quality requirement.
Disclosure of Invention
The main objective of this application is to provide a multistage air-lift solar energy integration sewage treatment system to above-mentioned problem, including biochemical treatment system, solar power system, biochemical treatment system is by aeration mechanism, biochemical combined area, each district through the water pipe intercommunication, aeration mechanism in order to realize backward flow mixture and biochemical combined area stirring, solar power system supplies power for the system in order to reduce the energy consumption of processing system operation.
Preferably, the biochemical combination area comprises a solid-liquid clarification area and is arranged at the upper part of the biochemical combination area, and the effect of the solid-liquid separation clarification area is realized by a solid-liquid separator, so that the conflict between the arrangement of the solid-liquid separation clarification area and an aeration mechanism is prevented, the system is exquisite, the treatment efficiency is improved, and the investment cost is reduced.
Preferably, the biochemical treatment system is composed of a reactor body with a partition wall arranged inside, the reactor body is divided into a biochemical combination area, a dephosphorization sedimentation area and a disinfection area by a vertical partition plate, the biochemical combination area is communicated through water pipes, and the biochemical combination area is composed of a flow guide partition plate, a water inlet and distribution pipe, an aeration pipe, a sludge discharge pipe and a solid-liquid clarification area.
Preferably, the dephosphorization settling zone is arranged at the rear end of the biochemical combination zone and consists of a water inlet pipe, an air-stripping sludge discharge device, a sludge collection zone and a water collection tank, the bottom of the dephosphorization settling zone is arranged into an inverted trapezoidal sludge collection zone, the water collection tank is arranged at the upper part of the dephosphorization settling zone and is arranged at the upper part of the dephosphorization settling zone, the water collection liquid level is lower than that of the water inlet pipe, the water inlet pipe extends along the water collection tank to vertically downwards, a dephosphorization dosing pipe is arranged on the water inlet pipe, and the upper end of the air-stripping sludge discharge device is communicated with an aeration pipe and vertically.
Preferably, the biochemical system further comprises a disinfection area and a dosing system, the dosing system comprises a phosphorus removal dosing device and a disinfection dosing device, the disinfection area comprises a disinfection dosing device and a drain pipe, a water inlet pipe of the disinfection area is connected with a water receiving tank of the phosphorus removal settling area, a disinfection dosing pipe is arranged at the upper part of the disinfection area and connected with the disinfection dosing device, and a water outlet pipe is arranged at the upper part of the disinfection area and is lower than the water inlet pipe in liquid level.
Preferably, the biochemical combination area is formed by sequentially connecting and fixing a biochemical combination area vertical partition plate, a biochemical combination area horizontal partition plate, a biochemical combination area inclined partition plate and a biochemical combination area vertical partition plate on the reactor from left to right to form a flow guide partition plate, the biochemical combination area is divided into an aerobic area, an anoxic area and an anaerobic area, a solid-liquid separation area consisting of a solid-liquid separator is arranged at the upper part of the anoxic area, a water inlet and water distribution pipe of the solid-liquid separation area is arranged in the anaerobic area, a sludge discharge pipe is arranged at the bottom of the anaerobic area and the tail end of the aerobic area, and the aeration mechanisms are arranged at the bottom of the solid-liquid clarification area and the bottom of the; the water inlet pipe of the dephosphorization settling zone is communicated with the water collecting tank of the solid-liquid separator of the biochemical combination zone, the upper part of the dephosphorization settling zone is provided with a dephosphorization dosing pipe which is connected with a dephosphorization dosing device, and the gas stripping sludge discharge device discharges sludge out of the reactor through a pipeline.
Preferably, the aeration mechanism comprises an aeration pipe and an aerator, the solar power system comprises a solar cell, a solar panel, a fan and a control box, the solar power is arranged outside the biochemical treatment system and is supplied with power by the solar panel and the solar cell, the fan is used for supplying air, and the control box is used for controlling the whole system.
Preferably, the reaction vessel consists of a biochemical treatment system bottom plate and biochemical treatment system external wallboards, the biochemical treatment system external wallboards are arranged around the upper part of the biochemical treatment system bottom plate, the inner space of the reaction vessel is sequentially sealed into a combined biochemical region, a dephosphorization sedimentation region and a disinfection region from left to right through a first external wallboard of the biochemical treatment system and a second internal clapboard of the biochemical treatment system, the combined biochemical area and the dephosphorization precipitation area are provided with water-gas pipelines, the upper parts of the dephosphorization precipitation area and the disinfection area are correspondingly provided with dosing systems, the dosing system is communicated with the dephosphorization sedimentation zone and the disinfection zone through corresponding pipelines, a control box is arranged at the upper part of the dephosphorization sedimentation zone, the control box is communicated with the water-gas pipelines of the combined biochemical region and the dephosphorization precipitation region through pipelines, and the right side of the control box is connected with a solar power system to realize the operation of the treatment system.
Preferably, the upper part of the combined biochemical area is provided with a solid-liquid separator, the inside of the combined biochemical area is connected with a biochemical combination area horizontal clapboard through a biochemical combination area vertical clapboard which is vertically arranged, the biochemical combination area horizontal clapboard is connected with a biochemical combination area inclined clapboard, the biochemical combination area inclined clapboard is upwards connected with a biochemical combination area vertical clapboard to form an aerobic area, an anoxic area and an anaerobic area, the upper parts of the aerobic area, the anoxic area and the anaerobic area are vertically provided with a conical solid-liquid separator which is prepared through a clapboard, the positions of the bottoms of the aerobic area, the anoxic area and the anaerobic area, which are close to the vertical clapboard, are provided with aeration pipes, the positions of the bottoms of the aerobic area, the anoxic area and the anaerobic area, which are close to the inclined clapboard, are provided with a sludge discharge pipe II, the bottom of the left end of the combined biochemical area is provided with a sludge discharge pipe I, the side part of the upper end of the combined biochemical, the bottom of the right end of the combined biochemical region is provided with a second aerator pipe, and the second aerator pipe is communicated with a pipeline of the control box;
the floor of the dephosphorization precipitation zone is communicated with two sloping plates of a dephosphorization precipitation zone sludge collecting tank to form an inverted trapezoidal sludge collecting zone, the left side of the upper end of the dephosphorization precipitation zone is provided with a dephosphorization precipitation zone water inlet pipe which is communicated to the upper part of the solid-liquid separator, and the right side of the upper end of the dephosphorization precipitation zone is provided with a dephosphorization precipitation zone water collecting tank; the left side of the upper end of the disinfection area is provided with a disinfection area water inlet pipe communicated with a dephosphorization sedimentation area water collecting tank, and the right side of the upper end of the disinfection area is provided with a disinfection area water outlet pipe; the control box is provided with a fan, and the solar power system is composed of a solar cell and a solar panel.
Preferably, an acute angle gamma formed by the inclined partition plate and the horizontal direction is 45-60 degrees; the liquid levels of a biochemical combination area water inlet pipe, a dephosphorization precipitation area water inlet pipe, a disinfection area water inlet pipe and a disinfection area water outlet pipe are sequentially reduced by not less than 5 cm; an acute angle gamma between the inclined plate of the inverted trapezoidal sludge collecting groove of the dephosphorization sedimentation zone and the horizontal direction is 45-60 degrees; the horizontal and vertical water passing flow velocity v of the biochemical combined area is more than or equal to 0.5 m/s; the biochemical combined area consists of two stages of aerobic aeration, the first stage of aeration is arranged at the tail end of the anoxic area, and the first stage of aeration is arranged at the bottom of the solid-liquid separation area.
The beneficial effect of this application is: (1) a solid-liquid separation and clarification device is arranged in the reactor, thereby realizing A2The integration of the/O process and the solid-liquid separator saves the floor area; (2) the mixed liquid in the aerobic zone is conveyed to the anoxic zone and the anaerobic zone by using the air-lift plug flow micro-power and the pushing action of a water head generated by dissolved air water in the aerobic zone, so that the mixed liquid is refluxed without applying external power equipment, and the equipment cost and the operating cost are saved; (3) the arrangement of the guide plate enables the mixed liquid to flow back to form a circulating flow, realizes hydraulic stirring without external power equipment, and saves equipment investment and energy consumption; (4) by adding the solar power system, the effect of normal operation without external energy is achieved, and the purpose of energy conservation is achieved; (5) by arranging a dosing system, the removal of pollutants such as phosphorus, escherichia coli and the like is further increasedThe removal rate ensures that the effluent quality is higher. In conclusion, compared with the prior art, the device saves external electric energy, occupies a large area, reduces construction cost and operation cost, simultaneously realizes more efficient denitrification and dephosphorization effect, improves effluent quality, and effectively promotes A2Economics and applicability of the/O process.
Drawings
FIG. 1 is a front view of the present application;
FIG. 2 is a partial schematic view of the present application;
in the figure: the system comprises a solar cell 1, a solar panel 2, a control box 3, a fan 4, a phosphorus removal dosing device 5, a disinfection dosing device 6, a biochemical combination area water inlet pipe 7, a sludge discharge pipe 8, a sludge discharge pipe 9, a solid-liquid separator 10, an aeration pipe 11, an aeration pipe 12, a phosphorus removal settling area water inlet pipe 13, an air stripping device 14, a phosphorus removal settling area water collection tank 15, a phosphorus removal settling area water inlet pipe 16, a phosphorus removal settling area water outlet pipe 17, a biochemical treatment system external wall panel 18, a biochemical treatment system bottom plate 19, a biochemical treatment system external wall panel 20, a biochemical treatment system internal baffle 21, a biochemical treatment system internal baffle 22, a biochemical treatment system internal baffle 23, a phosphorus removal settling area sludge inclined baffle plate 24, a biochemical combination area vertical baffle plate I, a biochemical combination area horizontal baffle plate I25, a biochemical combination area inclined baffle plate 26 and a biochemical combination area vertical baffle plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
FIG. 1 shows a multistage airlift solar integrated sewage treatment system, which comprises a biochemical treatment system provided with a biochemical combination area, a dephosphorization precipitation area and a disinfection area, a solar power system provided with a solar cell, a solar panel, a fan and a control box, and a dosing system provided with a dephosphorization dosing device and a disinfection dosing device.
The biochemical combination area is composed of a biochemical treatment system external wall panel 18, a biochemical treatment system bottom panel 19 and a biochemical treatment system external wall panel II 1, the biochemical combination area is divided into an anaerobic area, an anoxic area and an aerobic area by a biochemical combination area vertical partition plate I24, a biochemical combination area horizontal partition plate I25, a biochemical combination area inclined partition plate 26 and a biochemical combination area vertical partition plate II 27, a solid-liquid separator 10 is arranged at the upper part of the biochemical combination area, a biochemical combination area water inlet pipe 7 is arranged at the front end of the anaerobic area, a sludge discharge pipe I8 and a sludge discharge pipe II 9 are arranged at the bottom of the anaerobic area and the tail end of a primary aerobic area, and an aeration pipe I11 and an aeration pipe II 12 are arranged at the bottom of the clarification solid-liquid area and the bottom of the; the dephosphorization settling zone is composed of a bottom plate 19 of the biochemical treatment system, a second baffle 21 of the biochemical treatment system and a second baffle 22 of the biochemical treatment system, the dephosphorization settling zone is communicated with the combined biochemical zone through a water inlet pipe 13 of the dephosphorization settling zone, the upper part of the dephosphorization settling zone is provided with a dephosphorization dosing pipe connected with a dephosphorization dosing device 5, the sludge collecting tank is composed of the bottom plate 19 of the biochemical treatment system and a sloping plate 23 of the sludge collecting tank of the dephosphorization settling zone, the air stripping device 14 is arranged at the bottom of the sludge collecting zone and discharges the sludge to the outside of the reactor through a pipeline, and the water collecting tank 15 of the dephosphorization settling zone; the disinfection area is composed of a biochemical treatment system bottom plate 19, a biochemical treatment system inner partition plate two 22 and a biochemical treatment system outer partition plate two 20, a disinfection area water inlet pipe 16 and a disinfection area water outlet pipe 17 are respectively arranged on two sides of the upper part of the disinfection area, the disinfection area water inlet pipe 16 is connected with the dephosphorization sedimentation area, and a medicine adding pipe is arranged on the upper part of the disinfection area and connected with the disinfection medicine adding device 6. The solar power system is composed of a solar cell 1, a solar panel 2, a control box 3 and a fan 4. The dosing system consists of a 5-phosphorus removal dosing device and a 6-disinfection dosing device.
The condition and the effect of the system composition mechanism of the application are explained below, and the multistage air-lift solar integrated sewage treatment system comprises a biochemical treatment system, a solar power system and a dosing system, and is characterized in that the biochemical treatment system consists of a biochemical combination area, a dephosphorization precipitation area and a disinfection area, the solar power system consists of a solar cell, a solar panel, a fan and a control box, and the dosing system consists of a dephosphorization dosing device and a disinfection dosing device.
The biochemical treatment system is internally provided with a vertical clapboard fixed on the tank body to separate a biochemical combination area, a dephosphorization sedimentation area and a disinfection area, and all the areas are communicated through water pipes.
The whole system consists of a solar power system and a biochemical treatment system: the solar power is arranged outside the biochemical treatment system, the solar light panel and the solar cell are mainly used for supplying power, the fan is used for supplying air, and the control box is used for controlling the whole system; the biochemical treatment system is composed of a reactor body, wherein a partition wall fixed on the reactor body is arranged in the reactor body, the reactor body is divided into a biochemical combination area, a dephosphorization precipitation area and a disinfection area by a vertical partition plate, and the biochemical combination area, the dephosphorization precipitation area and the disinfection area are communicated through water pipes. The biochemical combined area consists of a flow guide clapboard, a water inlet and distribution pipe, an aeration pipe, a sludge discharge pipe and a solid-liquid clarification area; the dephosphorization settling zone consists of a water inlet pipe, an air-stripping sludge discharge device, a sludge collecting zone and a water collecting tank, wherein the water inlet pipe is provided with a dephosphorization dosing pipe, the bottom of the water inlet pipe is provided with an inverted trapezoidal sludge collecting zone, the air-stripping sludge discharge device is arranged, and the upper part of the water inlet pipe is provided with the water collecting tank; the disinfection area consists of a disinfection medicine-adding device and a drain pipe. The biochemical combination zone is divided into an anaerobic zone, an anoxic zone, an aerobic zone and a solid-liquid clarification zone by a flow guide partition board fixed on the reactor, wherein a water inlet and water distribution pipe is arranged in the anaerobic zone, a sludge discharge pipe is arranged at the bottom of the anaerobic zone and the tail end of the aerobic zone, and aeration pipes are arranged at the bottom of the solid-liquid clarification zone and the bottom of the aerobic zone; the water inlet pipe of the dephosphorization precipitation zone is communicated with the water receiving tank of the solid-liquid separator of the biochemical combination zone, the upper part of the water receiving tank is provided with a dephosphorization dosing pipe which is connected with a dephosphorization dosing device, the gas stripping sludge discharging device discharges sludge out of the reactor through a pipeline, the water receiving tank is arranged at the upper part of the dephosphorization precipitation zone, and the water receiving liquid level is lower than that of the water inlet pipe; the water inlet pipe of the disinfection area is connected with the water collecting tank of the dephosphorization precipitation area, the upper part of the disinfection area is provided with a disinfection dosing pipe which is connected with a disinfection dosing device, the water outlet pipe is arranged at the upper part of the disinfection area, and the liquid level is lower than that of the water inlet pipe.
The biochemical combination area is divided into an aerobic-anaerobic area, an anoxic area, an aerobic area and a solid-liquid separation area by a vertical partition plate and an inclined partition plate which are fixed on the reactor body, the acute angle gamma between the inclined partition plate and the horizontal direction is 45-60 degrees, and the liquid levels of the water inlet pipe of the biochemical combination area, the water inlet pipe of the dephosphorization precipitation area, the water inlet pipe of the disinfection area and the water outlet pipe of the disinfection area are sequentially reduced by not less than 5 cm. The inclined plate of the inverted trapezoidal sludge collecting groove of the dephosphorization sedimentation zone and the horizontal direction form an acute angle gamma of 45-60 degrees, the horizontal and vertical water passing flow velocity v of the biochemical combination zone is more than or equal to 0.5m/s, the biochemical combination zone consists of two stages of aerobic aeration, the first stage aeration is arranged at the tail end of the anoxic zone, the first stage aeration is arranged at the bottom of the solid-liquid separation zone, the solar power system can provide the power consumption of the system for 12 hours, the chemical adding system can provide the chemical adding amount of more than 7 days, the multistage airlift solar integrated sewage treatment system is powered and controlled by the solar power system, the biochemical treatment system removes pollutants, the chemical adding system provides chemicals, and the three systems together form a set of completed treatment system.
Summarizing the above, the characteristics of the present application are summarized:
(1) the aeration gas-lifting area is arranged in the reactor, and the water head, namely water potential energy, generated in the area can push the water body to integrally flow while supplying oxygen, namely the potential energy is converted into kinetic energy. The energy consumption level of the device is only in the biochemical oxygen demand range of the system, and the device is only a single device of the microporous aerator group, so that the oxygen supply and backflow processes of the biochemical system of the whole reactor can be realized on the premise of saving high sludge backflow devices, and the device cost and the operating cost are saved.
(2) Through the arrangement of the guide plate and the combination of the backflow of the mixed liquid, the sewage forms a circulating flow in the reactor, the hydraulic stirring without an external power device is realized, the micro-power operation of the whole reactor system is realized, and the equipment investment and the energy consumption are saved.
(3) The biochemical combination area is divided into an anaerobic area, an anoxic area and an aerobic area by a biochemical combination area vertical partition plate I24, a biochemical combination area horizontal partition plate I25, a biochemical combination area inclined partition plate 26 and a biochemical combination area vertical partition plate II 27, all the areas are completely mixed to realize a more efficient denitrification and dephosphorization effect, the operation process is flexible and changeable, and the operability is enhanced.
(4) A solid-liquid separator 10 is arranged in the biochemical combination area to realize A2The integration of the/O process and the solid-liquid separator saves the floor area; the solid-liquid separator 10 is provided with the aeration pipe I11, so that the problem of sludge deposition in the solid-liquid separation area is solved, the sludge utilization is further increased, and the removal effect is improved.
(5) The system is additionally provided with a solar power system, so that the effect of normal operation without external energy is achieved, and the purpose of energy conservation is achieved;
(6) the system is provided with a dosing system, so that the removal rate of pollutants such as phosphorus, escherichia coli and the like is further increased, and the effluent quality is higher.
The working principle and the working engineering of the application are as follows:
as shown in FIGS. 1-2, a multi-stage airlift solar integrated sewage treatment system comprises a biochemical treatment system provided with a biochemical combination area, a dephosphorization precipitation area and a disinfection area, a solar power system provided with a solar cell, a solar panel, a fan and a control box, and a dosing system provided with a dephosphorization dosing device and a disinfection dosing device. The solar power system provides control, power and air source, sewage firstly enters the anaerobic zone through the water inlet pipe of the 7 biochemical combined zone, and then auxiliary plug flow power is provided under the combined action of the first aeration pipe 11 and the second aeration pipe 12 to form a circulating flow state, so that a complete A is completed2the/O biological reaction process, aerobic biochemical reaction is carried out in an aerobic zone in the zone to remove CODcr and BOD5Is the marked organic pollutant, completes the phosphorus release process of the phosphorus accumulating bacteria, and simultaneously carries out nitration reaction to convert ammonia nitrogen in the sewage into nitrate nitrogen. After aerobic reaction, partial mixed liquid flows back to an anaerobic zone to carry out phosphorus accumulation reaction under the action of air lift driving force, then urgently enters an anoxic zone to enter denitrification reaction under the action of air lift driving force, nitrate nitrogen is converted into nitrogen to be discharged out of a system to complete a biological denitrification process, sewage is finally subjected to solid-liquid separation in a solid-liquid separator 10, the sewage after solid-liquid separation enters a dephosphorization settling zone through a dephosphorization settling zone water inlet pipe 13 and is added with medicine through a dephosphorization settling medicine adding device, phosphorus in the sewage is further removed, phosphorus-containing sludge is collected to a sludge collecting tank in a centralized manner and passes through a dephosphorization settling tankAnd the air stripping equipment 14 is discharged out of the system, the clarified sewage is collected by a collecting tank and enters a disinfection area, the sewage in the disinfection area is added with chemicals by a disinfection and chemical adding device 6, escherichia coli in the sewage is removed, and then the sewage is discharged out of the system by a water outlet pipe 17 of the disinfection area.
The application is improved by the fact that2The improvement is carried out on the basis of the/O reactor, a multistage air-lift solar integrated sewage treatment system is provided, and A is realized by arranging a solid-liquid separation device which fully utilizes the structure and the flow state in the reactor2The integration of the/O system and the solid-liquid separation device; the aeration air-lift power of the aerobic zone is fully utilized to realize that the mixed liquid is refluxed without additional power equipment and stirring equipment is not needed to be arranged to complete the stirring of the anaerobic zone and the anoxic zone; by adding the phosphorus removal precipitation zone and the medicine and phosphorus removal device, a more efficient nitrogen and phosphorus removal effect is realized; and the escherichia coli of the effluent quality reaches the standard by adding a disinfection area. Thereby achieving A2The energy conservation of the/O process, the reduction of the equipment capacity, the simplification of the operation, the reduction of the investment and the operation cost and the reduction of the occupied area are realized; by adding the solar power supply and control system, the problems of high operating cost and difficult power supply of small sewage treatment equipment are solved. At present, China is developing small-sized integrated equipment in rural areas greatly, and the problems that the existing rural sewage treatment equipment is difficult to implement in operation cost, difficult to reach the standard of effluent and high in effluent quality requirement are solved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A multi-stage air-lift solar integrated sewage treatment system comprises a biochemical treatment system and a solar power system and is characterized in that the biochemical treatment system is composed of an aeration mechanism, a biochemical combination area and all areas which are communicated through water pipes, the aeration mechanism is used for realizing backflow mixing and stirring of the biochemical combination area, and the solar power system is used for supplying power to the system so as to reduce the energy consumption of the operation of the treatment system.
2. The multi-stage gas-lift solar integrated sewage treatment system of claim 1, wherein the biochemical combination area comprises a solid-liquid clarification area and is arranged at the upper part of the biochemical combination area, and the effect of the solid-liquid separation clarification area is realized by a solid-liquid separator so as to prevent the arrangement of the solid-liquid separation clarification area from colliding with an aeration mechanism, so that the system is compact, the treatment efficiency is improved, and the investment cost is reduced.
3. The multi-stage air-lift solar integrated sewage treatment system of claim 2, wherein the biochemical treatment system is composed of a reactor body with a partition wall inside, the reactor body is divided into a biochemical combination area, a dephosphorization sedimentation area and a disinfection area by a vertical partition plate, the biochemical combination area is communicated with the dephosphorization sedimentation area through a water pipe, and the biochemical combination area is composed of a flow guide partition plate, a water inlet and distribution pipe, an aeration pipe, a sludge discharge pipe and a solid-liquid clarification area.
4. The multi-stage air-lift solar integrated sewage treatment system of claim 3, wherein the dephosphorization settling zone is arranged at the rear end of the biochemical combination zone and consists of a water inlet pipe, an air-lift sludge discharge device, a sludge collection zone and a water collection tank, the bottom of the dephosphorization settling zone is arranged into an inverted trapezoidal sludge collection zone, the upper part of the dephosphorization settling zone is provided with the water collection tank, the water collection tank is arranged at the upper part of the dephosphorization settling zone, the water collection liquid level is lower than that of the water inlet pipe, the water inlet pipe extends along the water collection tank to vertically face downwards, the water inlet pipe is provided with a dephosphorization dosing pipe, and the upper end of the air-lift sludge discharge device is communicated with an.
5. The multi-stage air-lift solar integrated sewage treatment system of claim 3, wherein the biochemical system further comprises a disinfection region and a dosing system, the dosing system comprises a dephosphorization dosing device and a disinfection dosing device, the disinfection region comprises a disinfection dosing device and a drain pipe, a water inlet pipe of the disinfection region is connected with a water collection tank of the dephosphorization precipitation region, a disinfection dosing pipe is arranged at the upper part of the disinfection region and connected with the disinfection dosing device, a water outlet pipe is arranged at the upper part of the disinfection region, and the liquid level of the water outlet pipe is lower than that of the water inlet pipe.
6. The multi-stage air-lift solar integrated sewage treatment system of claim 3, wherein the biochemical combination zone is composed of a biochemical combination zone vertical partition, a biochemical combination zone horizontal partition, a biochemical combination zone inclined partition and a biochemical combination zone vertical partition which are sequentially connected and fixed on the reactor from left to right to form a diversion partition, the biochemical combination zone is divided into an aerobic zone, an anoxic zone and an anaerobic zone, the upper part of the anoxic zone is provided with a solid-liquid separation zone composed of a solid-liquid separator, a water inlet and distribution pipe of the solid-liquid separation zone is arranged in the anaerobic zone, a sludge discharge pipe is arranged at the bottom of the anaerobic zone and the tail end of the aerobic zone, and an aeration mechanism is arranged at the bottom of the solid-liquid clarification zone and the bottom of the aerobic zone; the water inlet pipe of the dephosphorization settling zone is communicated with the water collecting tank of the solid-liquid separator of the biochemical combination zone, the upper part of the dephosphorization settling zone is provided with a dephosphorization dosing pipe which is connected with a dephosphorization dosing device, and the gas stripping sludge discharge device discharges sludge out of the reactor through a pipeline.
7. The multi-stage air-lift solar integrated sewage treatment system of any one of claims 1 to 6, wherein the aeration mechanism comprises an aeration pipe and an aerator, the solar power system comprises a solar cell, a solar panel, a fan and a control box, the solar power is arranged outside the biochemical treatment system and is supplied with power by the solar panel and the solar cell, the fan is used for supplying air, and the control box is used for controlling the whole system.
8. The multi-stage air-lift solar integrated wastewater treatment system according to any one of claims 1 to 6, wherein: a biochemical treatment system bottom plate and a biochemical treatment system external wall plate, wherein the periphery of the upper part of the biochemical treatment system bottom plate is provided with the biochemical treatment system external wall plate, the inner space of the reaction vessel is sequentially sealed into a combined biochemical region, a dephosphorization sedimentation region and a disinfection region from left to right through a first external wallboard of the biochemical treatment system and a second internal clapboard of the biochemical treatment system, the combined biochemical area and the dephosphorization precipitation area are provided with water-gas pipelines, the upper parts of the dephosphorization precipitation area and the disinfection area are correspondingly provided with dosing systems, the dosing system is communicated with the dephosphorization sedimentation zone and the disinfection zone through corresponding pipelines, a control box is arranged at the upper part of the dephosphorization sedimentation zone, the control box is communicated with the water-gas pipelines of the combined biochemical region and the dephosphorization precipitation region through pipelines, and the right side of the control box is connected with a solar power system to realize the operation of the treatment system.
9. The multi-stage airlift solar integrated sewage treatment system of claim 8, wherein: the upper part of the combined biochemical area is provided with a solid-liquid separator, the inside of the combined biochemical area is connected with a biochemical combination area horizontal clapboard I through a biochemical combination area vertical clapboard which is vertically arranged, the biochemical combination area horizontal clapboard is connected with a biochemical combination area inclined clapboard, the biochemical combination area inclined clapboard is upwards connected with a biochemical combination area vertical clapboard II to form an aerobic area, an anoxic area and an anaerobic area, the upper parts of the aerobic area, the anoxic area and the anaerobic area are vertically provided with a conical solid-liquid separator prepared by the clapboard, the positions of the bottoms of the aerobic area, the anoxic area and the anaerobic area, which are close to the vertical clapboard I, are provided with aeration pipes, the positions of the bottoms of the aerobic area, the anoxic area and the anaerobic area, which are close to the inclined clapboard, are provided with a sludge discharge pipe II, the bottom of the left end of the combined biochemical area is provided with a sludge discharge pipe I, the side part of the upper end of the combined biochemical area is provided with a biochemical combination area water inlet, the aeration pipe is communicated with a pipeline of the control box;
the floor of the dephosphorization precipitation zone is communicated with two sloping plates of a dephosphorization precipitation zone sludge collecting tank to form an inverted trapezoidal sludge collecting zone, the left side of the upper end of the dephosphorization precipitation zone is provided with a dephosphorization precipitation zone water inlet pipe which is communicated to the upper part of the solid-liquid separator, and the right side of the upper end of the dephosphorization precipitation zone is provided with a dephosphorization precipitation zone water collecting tank; the left side of the upper end of the disinfection area is provided with a disinfection area water inlet pipe communicated with a dephosphorization sedimentation area water collecting tank, and the right side of the upper end of the disinfection area is provided with a disinfection area water outlet pipe; the control box is provided with a fan, and the solar power system is composed of a solar cell and a solar panel.
10. The multi-stage airlift solar integrated sewage treatment system of claim 8, wherein: an acute angle gamma formed between the inclined partition plate and the horizontal direction is 45-60 degrees; the liquid levels of a biochemical combination area water inlet pipe, a dephosphorization precipitation area water inlet pipe, a disinfection area water inlet pipe and a disinfection area water outlet pipe are sequentially reduced by not less than 5 cm; an acute angle gamma between the inclined plate of the inverted trapezoidal sludge collecting groove of the dephosphorization sedimentation zone and the horizontal direction is 45-60 degrees; the horizontal and vertical water passing flow velocity v of the biochemical combined area is more than or equal to 0.5 m/s; the biochemical combined area consists of two stages of aerobic aeration, the first stage of aeration is arranged at the tail end of the anoxic area, and the first stage of aeration is arranged at the bottom of the solid-liquid separation area.
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