CN115572023A - Prevent blockking up high load sewage treatment system - Google Patents
Prevent blockking up high load sewage treatment system Download PDFInfo
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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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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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
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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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
- 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
Abstract
The invention discloses an anti-clogging high-load sewage treatment system, which comprises a pretreatment system, a sewage treatment system and a sewage treatment system, wherein the pretreatment system is used for carrying out solid-liquid separation on sewage, removing oil and suspended particles in the sewage, carrying out aerobic degradation on macromolecules and pollutants which are difficult to degrade in the sewage, and carrying out buffer distribution on effluent; the three-dimensional multi-layer filter tank system is used for synchronously carrying out longitudinal filtration and transverse conveying of multi-layer sewage, and carrying out adsorption and degradation treatment on granular organic matters and soluble organic matters in the sewage; the effluent recycling system is used for temporarily storing and discharging filtered sewage; the pretreatment system, the three-dimensional multi-layer filter system and the effluent recycling system are sequentially connected through pipelines. The invention utilizes the pretreatment system to carry out solid-liquid separation, oxidative degradation and interception buffer distribution, and utilizes the three-dimensional multi-layer filter tank system to carry out filtration degradation, thereby effectively avoiding the blockage phenomenon of the filter tank system.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to an anti-blocking high-load sewage treatment system.
Background
With the rapid development of social economy in China, the discharge amount of domestic sewage in regions such as towns and villages is increasing day by day. The domestic sewage in villages and towns has the characteristics of large fluctuation of discharge water volume and pollutant concentration, relatively simple components, good biodegradability, difficult collection and the like. The construction of large sewage treatment facilities or the utilization of emergency treatment equipment and the like is adopted, a large amount of sewage collecting pipe networks need to be constructed in a matched manner, and the problems of large scale and land occupation of facilities, addition of medicaments in operation, large investment of personnel maintenance and the like exist. Therefore, the method cannot be well adapted to the characteristics, so that the investment is too high, the operation cost is high, most regions are difficult to bear, and the method cannot be widely popularized and applied. The key of the sewage treatment technology is to research a treatment mode which has simple structure, low operation cost, convenient maintenance and adaptation to local sewage characteristics. Among various sewage treatment technical means, the land treatment technology has unique advantages in low cost and impact resistance.
The sewage land treatment system can be divided into six types, namely a slow infiltration treatment system, a rapid infiltration treatment system, an earth surface overflow treatment system, a sewage wetland treatment system, an underground infiltration land treatment system and an artificial soil layer rapid infiltration treatment system. The basic method is that domestic sewage discharged from the septic tank is uniformly distributed in soil with a certain area through a water dispersing pipe buried underground, and organic matters in the sewage are decomposed into harmless substances by aerobic and anaerobic bacteria while the sewage is permeated downwards in an upper air saturation zone of the soil. The method has the advantages of low construction cost and low operation and management cost. The land above the system can be used as a planting crop such as vegetables in dry land or as a greening land such as a flower nursery, a lawn and the like, and is a sewage treatment method with economic and ecological benefits.
In practical application cases, the traditional soil biological treatment method usually has a serious soil blockage phenomenon due to the existence of granular organic matters in the wastewater. When the wastewater enters the soil with smaller particle size from the gravel layer near the water dispersing pipe, suspended particulate organic matters in the wastewater are filtered out, a thin layer rich in particulate organic matters is formed near the interface of the wastewater, the permeability of the wastewater is reduced along with the accumulation of the particulate organic matters, and water accumulation in a local range generally occurs along the water dispersing pipe, even water accumulation in a large range generally occurs. After the soil is blocked, the oxygen diffusion effect is greatly weakened, and the blocking phenomenon is further aggravated. Thereby reducing the wastewater treatment efficiency of the system and even losing the wastewater treatment function thereof. In patent publication No. CN 100415655C, a unit for removing oil, precipitating and anaerobic digesting is added in front of the soil filter, so that the sewage load entering the soil filter is reduced. Although the technology reduces the blocking risk of the soil filter to a certain extent, the removal effect of pollutants by anaerobic digestion is limited, the pollutants such as ammonia nitrogen and the like in water are difficult to further remove, and the quality of the effluent water is difficult to stably reach the standard. The patent publication No. CN 103641270B can relieve the filter blockage to a certain extent by adopting measures of arranging two layers of water distribution at the water inlet end of the soil filter, arranging a pretreatment unit before water inlet, adding an advanced treatment unit at the water outlet end, increasing the ventilation of the soil filter and the like, so that the quality of the discharged water is stable. However, the system has more equipment application, such as a blower, a heater, a water pump and the like, which causes higher energy consumption; the increased pre-processing unit, the advanced processing unit, the matched power distribution equipment and the like have larger occupied areas, so that the system has high construction cost, high operation cost and high management difficulty.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an anti-blocking high-load sewage treatment system, which aims to solve the following technical problems in the prior art:
the conventional sewage treatment system has the phenomenon that the filtering pond blocks up among the prior art, and current technical solution gets rid of the pollutant through anaerobic digestion on the one hand and can reduce partial blocking risk, but is difficult to get rid of pollutants such as ammonia nitrogen in the sewage, and on the other hand strengthens ventilating through improving the filtering pond body, realizes alleviating to block up and goes out water quality of water up to standard, but overall device structure area is big, the operation cost is high.
The invention is realized by adopting the following technical scheme:
an anti-clogging high-load sewage treatment system comprises,
the pretreatment system is used for performing solid-liquid separation on the sewage, removing oil and suspended particles in the sewage, performing aerobic degradation on macromolecules and pollutants which are difficult to degrade in the sewage, and performing buffer distribution on effluent;
the three-dimensional multi-layer filter tank system is used for synchronously carrying out longitudinal filtration and transverse conveying on multi-layer sewage, and carrying out adsorption and degradation treatment on granular organic matters and soluble organic matters in the sewage;
the effluent recycling system is used for temporarily storing and discharging filtered sewage;
the pretreatment system, the three-dimensional multilayer filter tank system and the effluent recycling system are sequentially connected through pipelines.
In order to optimize the technical scheme, the specific measures adopted further comprise:
further, pretreatment systems including the preliminary sludge sedimentation that is used for that connects gradually intake recycling district, be used for nitrify and denitrification biochemical treatment district, be used for carrying on sludge sedimentation 'S muddy water disengagement zone once more, be used for the play water distribution district that the sewage buffering kept in, all be provided with the baffle between intake recycling district, biochemical treatment district, muddy water disengagement zone, the play water distribution district, it is a plurality of the baffle forms S type rivers direction, the external pipeline is connected in the intake recycling district, biochemical treatment district' S rivers direction is for advancing down, the rivers direction of muddy water disengagement zone is for advancing up-and-down, go out water distribution district and three-dimensional multilayer filtering pond headtotail. The baffle inside the pretreatment system is arranged, so that an effective plug flow form is formed, the impact load resistance is high, and the stability of water quality entering the filter tank is guaranteed.
Furthermore, the biochemical treatment area is provided with a suspension type filler frame, fillers are filled in the filler frame, and the mud-water separation area is provided with a precipitation inclined tube.
Furthermore, the three-dimensional multilayer filter system comprises an upper layer filtering unit, a lower layer filtering unit and a drainage unit which are distributed and communicated from top to bottom, wherein a first filtering layer is filled between the upper layer filtering unit and the lower layer filtering unit, the upper layer filtering unit and the lower layer filtering unit are both connected with a water outlet distribution area through a pipeline, the position of a water inlet of the upper layer filtering unit is lower than that of a water inlet of the lower layer filtering unit, and the upper layer filtering unit and the drainage unit are both connected with a water outlet recycling system through a pipeline. The double-layer filtering unit greatly improves the filtering capacity of the filter system.
Furthermore, the upper filtering unit comprises an upper water distribution layer and a covering layer arranged above the upper water distribution layer, the upper water distribution layer is provided with a plurality of upper water distribution pipes, the upper water distribution pipes are provided with a plurality of upper water dispersion holes, the lower filtering unit comprises a lower water distribution layer and a second filtering layer arranged below the lower water distribution layer, the lower water distribution layer is provided with a plurality of lower water distribution pipes, the lower water distribution pipes are provided with a plurality of lower water dispersion holes, the water inlet end parts of the upper water distribution pipes and the lower water distribution pipes are inserted into the water outlet distribution area, the water inlet end position of the upper water distribution pipes is lower than the water inlet end position of the lower water distribution pipes, one side of the upper water distribution pipes, which is far away from the water outlet distribution area, is provided with an overflow pipe, the height of the overflow pipe is higher than that of the upper water distribution pipes, the drainage unit comprises a drainage layer and a drainage pipe, the drainage layer is arranged below the second filtering layer, the drainage pipe is arranged between the second filtering layer, and the overflow pipe and the drainage pipe are both connected with a water outlet recycling system. The pollution load capacity of the three-dimensional filtration mode for adsorption treatment is large, and the load capacity of the high-load artificial soil filter tank can be exerted to the maximum extent.
Furthermore, the covering layer is a planting layer, and the first filtering layer and the second filtering layer are both composed of one or more of zeolite, ceramsite, aerated brick gravel and spherical filler.
Further, go out water recycling system and include tank, immersible pump and drainage pipe, overflow pipe and drain pipe all are connected with the tank, the immersible pump sets up in the tank bottom, drainage pipe is connected with the immersible pump.
Further, the sewage treatment system also comprises a solar power generation system which is used for supplying power to the sewage treatment system.
Further, the sewage treatment system still including being used for carrying out the aeration system of oxygenating for pretreatment systems, filtering pond system, the ventilation governing system includes first aeration pipe, second aeration pipe, air delivery pipe, air pump, first aeration pipe sets up in floated filler frame below, be provided with the ventilation layer in the middle of the first filtering layer, the second aeration pipe sets up in the ventilation layer, first aeration pipe, second aeration pipe all with carry the trachea and be connected, the air delivery pipe is connected with the air pump.
Further, sewage treatment system still including being used for carrying out ventilation's the air exchange system that pulls out wind for pretreatment systems, filtering pond system, pull out wind air exchange system and include air pipe and spiral-flow type ventilator, air pipe one end is connected with pretreatment systems, ventilation layer respectively, spiral-flow type ventilator sets up at the air pipe other end. The air-pulling and air-changing system can utilize the flow of natural air to ventilate the pretreatment system, avoid the accumulation of harmful gas, reduce the pressure in the pretreatment system, reduce the resistance of oxygenation and aeration, and utilize the flow of natural air to positively ventilate oxygen-enriched air and negatively ventilate the three-dimensional multi-layer filter system, thereby being beneficial to further eliminating the organic pollutants accumulated in the early stage and recovering the pollution load capacity of the three-dimensional multi-layer filter system.
The invention has the beneficial effects that:
compared with the prior art, the anti-clogging high-load sewage treatment system disclosed by the invention has the advantages that solid-liquid separation, oxidative degradation and interception buffer distribution are firstly carried out through the pretreatment system, then the three-dimensional multi-layer filter chamber system is used for carrying out filtering degradation, and finally the ventilation adjusting system and the air-drawing ventilation system are used for carrying out periodic active aeration and passive ventilation, so that the pollutant removal capability of the treatment system is maintained and enhanced, and the clogging phenomenon of the filter chamber system is effectively avoided.
Three-dimensional multilayer formula filtering pond system itself adopts three-dimensional multiple layer filtering mode, the water distributor of horizontal double-deck setting, the compound filler that the multilayer set up about the cooperation, partial sewage utilizes compound filler to filter sewage through gravity flow downwards, another part sewage flows into out water recycling system through water distributor and drain pipe simultaneously, avoid blockking up, the multilayer compound filler can effectively improve filtration load capacity, reinforce the ventilation effect, prevent blocking phenomenon, this mode of setting up can adapt to complicated villages and towns drainage environment simultaneously, can compatible sewage treatment, first rain regulation, functions such as flood control drainage waterlogging.
The system adopts renewable energy sources such as solar energy, wind energy and the like to supply power to the processing system, does not need an external power supply, reduces the construction and operation use cost, and has wider applicability, particularly in remote areas with difficult power connection.
Drawings
FIG. 1 is a process connection diagram of an anti-clogging high-load sewage treatment system according to the present invention.
FIG. 2 is a system connection diagram of an anti-clogging high-load sewage treatment system according to the present invention.
The reference signs are: the device comprises a pretreatment system 10, an inlet water recycling area 11, a biochemical treatment area 12, a mud-water separation area 13, a partition plate 14, a sludge hopper 15, a suspension type filler frame 16, a sedimentation inclined pipe 17, a three-dimensional multi-layer filter system 20, an upper-layer filtering unit 21, an upper water distribution layer 211, a covering layer 212, an upper water distribution pipe 213, an upper water distribution pipe 214, an overflow pipe 215, a lower-layer filtering unit 22, a lower water distribution layer 221, a second filtering layer 222, a lower water distribution pipe 223, a lower water distribution pipe 224, a drainage unit 23, a drainage layer 231, a drainage pipe 232, a first filtering layer 24, a ventilation layer 25, an outlet water recycling system 30, a water storage tank 31, a submersible pump 32, a water outlet pipe 33, an aeration oxygenation system 40, a first aeration pipe 41, a second aeration pipe 42, a conveying pipe 43, an air pump 44, a wind-pulling and ventilation system 50, a ventilation pipe 51, a rotational flow type ventilator 52 and a solar power generation system 60.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The sewage treated by the anti-blocking high-load sewage treatment system is domestic sewage which comprises water for toilets, water for kitchens, water for showers, courtyard washing, flushing and the like and surface runoff formed in rainfall, the domestic sewage is treated by an oil separation tank, a septic tank and the like, flows automatically through the water level difference, is collected by a gravity pipeline and then is connected into the anti-blocking high-load sewage treatment system.
Example 1
Referring to fig. 1-2, the invention provides an anti-clogging high-load sewage treatment system, which can filter and degrade sewage to remove pollutants in the sewage, and simultaneously adopts a three-dimensional double-layer filtering mode to avoid accumulated water clogging caused by a thin layer rich in particle organic matters formed in the filtering and degrading process of the sewage, and ensure that the quality of the effluent reaches the standard.
As shown in FIG. 1, a high-load sewage treatment system against clogging comprises
The pretreatment system 10 is used for performing solid-liquid separation on sewage, removing grease and suspended particulate matters in the sewage, performing aerobic degradation on macromolecules and pollutants difficult to degrade in the sewage, and performing buffer distribution on effluent;
the three-dimensional multi-layer filter tank system 20 is used for synchronously carrying out longitudinal filtration and transverse conveying on sewage, and carrying out adsorption and degradation treatment on granular organic matters and soluble organic matters in the sewage;
the effluent recycling system 30 is used for temporarily storing and discharging filtered sewage;
the pretreatment system 10, the three-dimensional multi-layer filter system 20 and the effluent recycling system 30 are sequentially connected by pipelines.
The pretreatment system 10 comprises a water inlet recycling area 11 for primary sludge sedimentation, a biochemical treatment area 12 for nitrification and denitrification, a sludge-water separation area 13 for secondary sludge sedimentation and a water outlet distribution area for temporary storage of sewage buffer, which are sequentially connected; the inlet water reuse area 11, the biochemical treatment area 12, the sludge-water separation area 13 and the outlet water distribution area are all provided with a clapboard 14, and the plurality of clapboards 14 form an S-shaped water flow direction. The water inlet recycling area 11 is connected with an external pipeline, a sludge hopper 15 is arranged at the bottom of the water inlet recycling area 11, the biochemical treatment area 12 is provided with a suspended filler frame 16, and the suspended filler frame 16 is filled with fillers which adopt combined fillers and have the effects of good heat dissipation, small resistance, good water distribution performance and capability of cutting bubbles. The mud-water separation area 13 is provided with a sedimentation inclined pipe 17, the section of the sedimentation inclined pipe 17 is circular or hexagonal, the sedimentation inclined pipe 17 is hollow inside, the water flow direction of the biochemical treatment area 12 is from top to bottom, the water flow direction of the mud-water separation area 13 is from bottom to top, and the water outlet distribution area is connected with the three-dimensional multi-layer filter system 20.
The pretreatment system 10 is used as a buried bioreactor and does not occupy the ground surface space, firstly, sewage treated by an oil separating tank, a septic tank and other processes automatically flows into an inlet water recycling area 11 through water level difference, larger particles in the sewage settle in the inlet water recycling area 11 and are stored in a sludge hopper 15, floating objects in the sewage are blocked at the upper part by a partition plate 14, meanwhile, dissolved oxygen in the sewage is gradually consumed in a staying time period of the inlet water recycling area 11 to form an anoxic to anaerobic environment to promote hydrolysis of macromolecules and difficultly degraded pollutants, then the sewage enters a biochemical treatment area 12 from an outlet water weir above the inlet water recycling area 11, the sewage entering the biochemical treatment area 12 is adsorbed and degraded by a filler of a suspension type filler frame 16 to further remove the pollutants, then the sewage flows into a sludge water separating area 13 from the bottom of the biochemical treatment area 12, the sewage flows through a settling inclined pipe 17 from bottom to top in the sludge separating area 13, the sludge is separated under the settling action of the inclined pipe 17, and the outlet water enters an outlet water distributing area from the sludge separating area 13 to be temporarily stored.
The three-dimensional multilayer filter system 20 comprises an upper layer filtering unit 21, a lower layer filtering unit 22 and a drainage unit 23 which are distributed from top to bottom and are communicated, a first filtering layer 24 is filled between the upper layer filtering unit 21 and the lower layer filtering unit 22, the upper layer filtering unit 21 and the lower layer filtering unit 22 are both connected with a water outlet distribution area through a pipeline, the position of a water inlet of the upper layer filtering unit 21 is lower than that of the lower layer filtering unit 22, and the upper layer filtering unit 21 and the drainage unit 23 are both connected with a water outlet recycling system 30 through a pipeline.
The upper filtering unit 21 includes an upper water distribution layer 211 and a cover layer 212 disposed above the upper water distribution layer 211, the upper water distribution layer 211 is provided with a plurality of upper water distribution pipes 213, the upper water distribution pipes 213 are provided with a plurality of upper water distribution holes, the lower filtering unit 22 includes a lower water distribution layer 221 and a second filtering layer 222 disposed below the lower water distribution layer 221, the lower water distribution layer 221 is provided with a plurality of lower water distribution pipes 223, the lower water distribution pipes 223 are provided with a plurality of lower water distribution holes, the water inlet end portions of the upper water distribution pipes 213 and the lower water distribution pipes 223 are inserted into the water outlet distribution area, the water inlet end portion of the upper water distribution pipes 213 is lower than the water inlet end portion of the lower water distribution pipes 223, one side of the upper water distribution pipes 213 away from the water outlet distribution area is provided with an overflow pipe 215, the height of the overflow pipe 215 is higher than that of the upper water distribution pipes 213, the drainage unit 23 includes a drainage layer 231 and a drainage pipe 232, the drainage layer 231 is disposed below the second filtering layer 222, the drainage pipe 232 is disposed in the drainage layer 231, and the drainage pipe 215 and the drainage pipe 232 are both connected to the water outlet recycling system 30.
The covering layer 212 is a planting layer which is filled with in-situ soil and can be used as vegetable fields, flower gardens, green lands and the like, the thickness of the soil layer can be set according to actual needs, the upper water distribution layer 211 and the lower water distribution layer 221 are both made of ceramsite with the particle size of 40-60mm and spherical filling filter materials, the spherical filling is a polyurethane suspension ball biological filter material and is filled with 150mm, the first filter layer 24 and the second filter layer 222 are both made of zeolite, ceramsite, aerated brick crushed gravel and spherical filling with the particle size of 30-50mm, and the filling thickness is 200mm; the drainage layer 231 is composed of pebbles with the grain diameter of 60-80mm, and the filling thickness is 250mm. In the upper filtering unit 21 and the lower filtering unit 22, filtering levels with gradually reduced filtering pore diameters from top to bottom are formed, so that sewage can be adsorbed and degraded better, and a thin layer rich in granular organic matters is effectively avoided.
The upper water distribution pipe 213, the lower water distribution pipe 223 and the water discharge pipe 232 are all made of PVC pipes, the water dispersion holes are all arranged at the bottom of the corresponding pipelines and are inclined downwards at a certain angle, the water dispersion holes are uniformly distributed, the upper water distribution pipe 213 is arranged in a shape like a Chinese character feng, the water inlet end of the upper water distribution pipe 213 is provided with an upper water distribution pipe 214, the upper water distribution pipe 214 is inserted into the water outlet distribution area, the sewage in the water outlet distribution area can flow into the upper water distribution pipe 213 through the upper water distribution pipe 214, the overflow pipe 215 is connected with the water outlet end of the upper water distribution pipe 213, and the overflow pipe 215 upwards passes through the covering layer 212 and is connected with the water outlet recycling system 30. The lower water distribution pipe 223 is arranged in a shape like Chinese character 'chuan', the water inlet end of the lower water distribution pipe 223 is provided with a lower water distribution pipe 224, the lower water distribution pipe 224 is inserted into the water outlet distribution area, sewage in the water outlet distribution area can flow into the lower water distribution pipe 223 through the lower water distribution pipe 224, the water inlet position of the upper water distribution pipe 214 is lower than the water inlet position of the lower water distribution pipe 224, the drain pipe 232 is arranged in a shape like Chinese character 'feng', and the water outlet end of the drain pipe 232 is connected with the water outlet recycling system 30. The upper filter unit 21 and the lower filter unit 22 thus form a two-pass filtering operation mode.
When in work, because a double-channel filtering work mode is formed in the three-dimensional multi-layer filter tank system 20, the system can deal with various complex environments.
Under a sunny state, domestic sewage temporarily stores in the effluent distribution area through the pretreatment system 10, and along with the rise of the water level of the effluent distribution area, the domestic sewage enters the upper water distribution pipe 213 through the upper water distribution pipe 214, uniformly enters the upper water distribution layer 211, percolates downwards to reach the drainage layer 231 through the first filter layer 24, the lower water distribution layer 221 and the second filter layer 222 in sequence, and is collected and discharged through the drainage pipe 232.
In the rain and in the state of large water volume, the excessive incoming water passes through the upper water distribution pipe 213 and passes through the above process, and with the water level of the water outlet distribution area rising continuously and exceeding the top of the water inlet of the lower water distribution pipe 224, the excessive rain water enters the lower water distribution layer 221 through the lower water distribution pipe 223, percolates downwards through the second filter layer 222, reaches the drainage layer 231, and is discharged through the drainage pipe 232.
Under the state that the continuous rainfall is large, the water level of the water outlet distribution area continues to rise and exceeds the height of the overflow pipe 215, and the excessive rainwater directly overflows and is discharged into the water outlet recycling pool.
The effluent recycling system 30 comprises a water storage tank 31, a submersible pump 32 and an outlet pipe 33, an overflow pipe 215 and a drain pipe 232 are both connected with the water storage tank 31, the submersible pump 32 is arranged at the bottom of the water storage tank 31, the outlet pipe 33 is connected with the submersible pump 32, the effluent recycling system also comprises a solar power generation system 60, and the solar power generation system 60 is used for supplying power to the submersible pump 32.
The operation mode of the processing system is as follows: continuous water inflow and intermittent water drainage, domestic sewage, rainwater and the like are continuously input into the treatment system, pollutants are filtered and degraded through the pretreatment system 10 and the three-dimensional multi-layer filter system 20 and finally discharged into the water storage tank 31, and the submersible pump 32 is started up in stages to discharge the treated sewage according to the height of the water level in the water storage tank 31.
Example 2
Referring to fig. 1-2, the present embodiment provides an anti-clogging high-load sewage treatment system, which can perform active aeration and oxygenation on the treatment system, maintain and enhance the pollutant removal capability of the treatment system, and effectively avoid the clogging phenomenon of the filter system.
This example differs from example 1 in that: the utility model provides a prevent blockking up high load sewage treatment system, still including being used for pretreatment systems 10, the aeration oxygenation system 40 that the filtering pond system carried out aeration oxygenation, aeration oxygenation system 40 includes first aeration pipe 41, second aeration pipe 42, carry trachea 43, air pump 44, first aeration pipe 41 sets up in floated filler frame 16 below, be provided with ventilation layer 25 in the middle of first filtering layer 24, second aeration pipe 42 sets up in ventilation layer 25, first aeration pipe 41, second aeration pipe 42 all is connected with carrying trachea 43, carry trachea 43 and air pump 44 and be connected. The air pump 44 is powered by a solar power generation system 60.
The ventilation layer 25 divides the first filter layer 24 into two symmetrical parts, the ventilation layer 25 is composed of pebbles with the grain diameter of 10-40mm, the filling thickness is 200mm, the second aeration pipe 42 is arranged in a shape of Chinese character hui, and small ventilation holes are densely distributed on the side surface and the bottom.
In order to maintain and enhance the biochemical treatment effect of the biochemical treatment area 12, the air pump 44 is started in stages to deliver the air flow to the first aeration pipe 41 through the air delivery pipe 43 for aeration and oxygenation, so that an aerobic and anoxic alternate environment is formed, the nitrification and denitrification effects are improved, and the denitrification treatment is realized. During the drying period of the three-dimensional multi-layer filter system 20, the air pump 44 is used for supplying air and oxygenating the three-dimensional multi-layer filter system 20, so that the decomposition of pollutants is accelerated, and meanwhile, the air backwashing effect is realized, thereby being beneficial to the recovery of the filtering capacity. The specific working process is as follows: starting the air pump 44 to deliver the air flow to the second aeration pipe 42 through the air delivery pipe 43 for air supply and oxygenation, wherein the air flow is divided into two channels, one channel upwards passes through the first filtering layer 24 and the upper water distribution layer 211 and is dissipated to the outside through the water inlet of the upper water distribution pipe 213 and the planting layer; the other path downwards passes through the first filtering layer 24 and the lower water distribution layer 221 and is dissipated to the outside through the water inlet of the lower water distribution pipe 223 and the water drainage pipe 232 in the water drainage layer 231, so that the effect of oxygenating the integral stereoscopic multi-layer filter tank system 20 is achieved.
Example 3
Referring to fig. 1 to 2, the present embodiment provides an anti-clogging high-load sewage treatment system, which can perform passive ventilation to the treatment system, enhance the microbial degradation and sludge decomposition, prevent harmful gas from gathering inside, and reduce the aeration resistance.
The present example differs from example 2 in that: the utility model provides a prevent blockking up high load sewage treatment system, still includes and is used for carrying out ventilation's wind air exchange system 50 for pretreatment system 10, three-dimensional multilayer formula filtering pond system 20, and wind air exchange system 50 includes air pipe 51 and spiral-flow type ventilator 52, and air pipe 51 one end is connected with pretreatment system 10, ventilation layer 25 respectively, and spiral-flow type ventilator 52 sets up at the air pipe 51 other end.
In order to improve the combined effect of the air-drawing and ventilating system 50 and the aeration oxygenation system 40, the air conveying pipe 43 is arranged in the ventilating pipeline 51, and for the pretreatment system 10, the external natural flowing air flow is used for driving the cyclone ventilator 52 to rotate, so that the air in the pretreatment system 10 is discharged, the use frequency of the air pump 44 is reduced, and energy conservation and environmental protection are realized; while the ventilation duct 51 serves as an airflow outlet, the aeration resistance can be reduced. For the three-dimensional multi-layer filter system 20, when the amount of water flowing from the upstream is small and the air pump 44 is not started, the rotational flow type ventilator 52 is driven to rotate by using the external natural flowing air flow, a negative pressure air suction effect is formed on the ventilation layer 25, air enters the upper and lower water distribution layers 221 through the water inlets of the upper and lower water distribution pipes, and is discharged through the ventilation pipe through the covering layer 212 and the first filter layer 24, so that a local micro-circulation ventilation effect is achieved, the biodegradation efficiency is maintained, and the treatment effect is optimized.
The foregoing are embodiments of the present invention and are not intended to limit the scope of the invention to the particular forms set forth in the specification, which are set forth in the claims below, but rather are to be construed as the full breadth and scope of the claims, as defined by the appended claims, as defined in the appended claims, in order to provide a thorough understanding of the present invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several variations and modifications can be made, which should also be considered as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. The utility model provides a prevent blockking up high load sewage treatment system which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the pretreatment system is used for performing solid-liquid separation on the sewage, removing oil and suspended particles in the sewage, performing aerobic degradation on macromolecules and pollutants which are difficult to degrade in the sewage, and performing buffer distribution on effluent;
the three-dimensional multi-layer filter tank system is used for synchronously carrying out longitudinal filtration and transverse conveying on multi-layer sewage, and carrying out adsorption and degradation treatment on granular organic matters and soluble organic matters in the sewage;
the effluent recycling system is used for temporarily storing and discharging filtered sewage;
the pretreatment system, the three-dimensional multilayer filter tank system and the effluent recycling system are sequentially connected through pipelines.
2. The anti-clogging high-load sewage treatment system according to claim 1, wherein: pretreatment systems including what connect gradually is used for preliminary sludge settling advance the water reuse district, be used for nitrify with the biochemical treatment district of denitrification, be used for carrying on sludge settling' S muddy water disengagement zone once more, be used for the play water distribution district that sewage buffering kept in, all be provided with the baffle between water reuse district, biochemical treatment district, muddy water disengagement zone, the play water distribution district, it is a plurality of the baffle forms S type rivers direction, external pipeline is connected in the water reuse district, the rivers direction in biochemical treatment district is for going into from top to bottom, the rivers direction in muddy water disengagement zone is for going into from top to bottom, go out water distribution district and three-dimensional multilayer filtering pond headtotail.
3. The anti-clogging high-load sewage treatment system according to claim 2, wherein: the biochemical treatment area is provided with a suspended filler frame, fillers are filled in the filler frame, and the mud-water separation area is provided with a precipitation inclined tube.
4. The anti-clogging high-load sewage treatment system according to claim 3, wherein: the three-dimensional multilayer filter tank system comprises an upper layer filtering unit, a lower layer filtering unit and a drainage unit which are distributed and communicated from top to bottom, wherein a first filtering layer is filled between the upper layer filtering unit and the lower layer filtering unit, the upper layer filtering unit and the lower layer filtering unit are connected with a water outlet distribution area pipeline, the water inlet position of the upper layer filtering unit is lower than that of the lower layer filtering unit, and the upper layer filtering unit and the drainage unit are connected with a water outlet recycling system pipeline.
5. The anti-clogging high-load sewage treatment system according to claim 4, wherein: the upper filtering unit comprises an upper water distribution layer and a covering layer arranged above the upper water distribution layer, the upper water distribution layer is provided with a plurality of upper water distribution pipes, a plurality of upper water dispersion holes are formed in the upper water distribution pipes, the lower filtering unit comprises a lower water distribution layer and a second filtering layer arranged below the lower water distribution layer, the lower water distribution layer is provided with a plurality of lower water distribution pipes, a plurality of lower water dispersion holes are formed in the lower water distribution pipes, the water inlet end parts of the upper water distribution pipes and the lower water distribution pipes are inserted into a water outlet distribution area, the water inlet end positions of the upper water distribution pipes are lower than the water inlet end positions of the lower water distribution pipes, an overflow pipe is arranged on one side, away from the water outlet distribution area, of the upper water distribution pipes is higher than the upper water distribution pipes, the drainage unit comprises a drainage layer and a drainage pipe, the drainage layer is arranged below the second filtering layer, the drainage pipe is arranged between the second filtering layers, and the overflow pipe and the drainage pipe are connected with a water outlet recycling system.
6. The anti-clogging high-load sewage treatment system according to claim 5, wherein: the covering layer is a planting layer, and the upper water distribution layer, the lower water distribution layer, the first filtering layer, the second filtering layer and the drainage layer are all composed of one or more of zeolite, ceramsite, aerated brick gravel and spherical filler.
7. The anti-clogging high-load sewage treatment system according to claim 5, wherein: go out water recycling system and include tank, immersible pump and outlet pipe, overflow pipe and drain pipe all are connected with the tank, the immersible pump sets up in the tank bottom, the outlet pipe is connected with the immersible pump.
8. The anti-clogging high-load sewage treatment system of claim 7 further comprising a solar power generation system for powering the sewage treatment system.
9. The anti-clogging high-load sewage treatment system according to claim 5, wherein: still including being used for carrying out aeration oxygenation system that aerates oxygenated for pretreatment systems, filtering pond system, ventilation governing system includes first aeration pipe, second aeration pipe, gas transmission pipe, air pump, first aeration pipe sets up in floated filler frame below, be provided with the ventilation layer in the middle of the first filtering layer, the second aeration pipe sets up in the ventilation layer, first aeration pipe, second aeration pipe all with carry the trachea to be connected, the gas transmission pipe is connected with the air pump.
10. The anti-clogging high-load sewage treatment system according to claim 5, wherein: still including being used for carrying out ventilation's the air exchange system that pulls out for pretreatment system, filtering pond system, air exchange system that pulls out includes air pipe and spiral-flow type ventilator, air pipe one end is connected with pretreatment system, ventilation layer respectively, spiral-flow type ventilator sets up at the air pipe other end.
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