CN210825835U - Unpowered sewage treatment system - Google Patents
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- CN210825835U CN210825835U CN201921188772.7U CN201921188772U CN210825835U CN 210825835 U CN210825835 U CN 210825835U CN 201921188772 U CN201921188772 U CN 201921188772U CN 210825835 U CN210825835 U CN 210825835U
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Abstract
The utility model relates to an unpowered sewage treatment system, including sewage collecting pit, three format septic tanks, coarse gravel filtering ponds and fine sand filtering ponds, seven grades of wetland absorption ponds, aqueduct, sewage collecting pit, three format septic tanks, coarse gravel filtering ponds and fine sand filtering ponds pass through water piping connection, fine sand filtering ponds and seven grades of wetland absorption ponds pass through aqueduct or ditch connection. The sewage treatment system not only solves the problem of environmental pollution caused by domestic sewage, recycles pollutants in the domestic sewage to change waste into valuable, but also provides a better living environment, is a scientific and comprehensive sewage treatment mode without power, energy conservation, environmental protection and secondary pollution, has wide applicability and is worthy of popularization.
Description
Technical Field
The utility model relates to a sewage treatment technical field, concretely relates to unpowered sewage treatment system.
Background
Currently, a large amount of domestic sewage in many karst mountainous areas is directly discharged into ditches or small rivers. Due to the fact that geological backgrounds in the karst region are complex, meanwhile, most rocks formed on the main earth surface of the karst region are soluble rocks, a net-shaped underground river network is often formed, domestic sewage enters the underground river network along an underground channel, the residential environment is poor in disorderly growth, and permanent pollution is brought to underground water in the karst region. Therefore, the domestic sewage purification in the karst region is particularly important.
A comprehensive method is provided for many people who treat domestic sewage, but due to the limitation in the karst region, many reasonable domestic sewage treatment methods cannot be put into use in the karst region. For example, patent CN1088404445 provides an artificial wetland treatment system for treating rural domestic sewage, which mainly comprises a water storage tank, a water guide channel, a plant pond, a material filtering tank and an ultraviolet disinfection area, the occupied area of the artificial wetland treatment system is large, the later-stage investment and use cost is high, the artificial wetland treatment system cannot be used in economic lagging karst mountainous areas without three days and three miles in the sky, and for example, patent CN109231485 provides a domestic sewage treatment system which comprises a sewage pipe, a drainage ditch and a water storage tank, and a sewage pump is arranged in the water storage tank.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, a proper natural negative terrain is selected as a sewage treatment area according to the unique landform and landform of the karst region, an unpowered domestic sewage treatment system is provided for the karst mountain wetland, the pollution of domestic sewage to the environment is solved, pollutants in the domestic sewage are recycled, the pollutants are changed into valuable things, and a better human living environment is provided.
In order to realize the above object, the utility model provides an unpowered sewage treatment system, including sewage collecting pit, three format septic tanks, coarse gravel filtering ponds and fine sand filtering ponds, seven grades of wetland absorption ponds, water guide channel, sewage collecting pit, three format septic tanks, coarse gravel filtering ponds and fine sand filtering ponds pass through water piping connection, fine sand filtering ponds and seven grades of wetland absorption ponds pass through water guide channel or ditch connection.
The working principle and the process of the technical scheme are as follows: a water guide channel or a ditch of a steep transition zone in the karst mountain negative topography is used as a site for treating domestic sewage in the natural negative topography of the karst mountain wetland, a reservoir, a three-grid septic tank, a coarse gravel filter tank and a fine sand filter tank are built in the steep water guide channel zone and are connected through pipelines, and a soil pit (soft pit) is built in the gentle water guide channel or the ditch to serve as a wetland absorption tank.
Domestic sewage reachs the sewage collecting pit through arranging domestic sewage ditch, get into the sewage collecting pit from the water inlet of sewage collecting pit, add silt in the sewage collecting pit and promote life activity, improve purifying effect, enter into three format septic tanks through conduit, sewage at first enters into the first check of three format septic tanks, deposit than great solids and parasitic ova etc. in first check, begin preliminary fermentation decomposition, the sewage of handling through first check divide into the three-layer: the pasty dung skin, the relatively clear dung liquid and the solid dung slag flow into a second grid after primary decomposition, the dung skin floating on the dung skin and the dung slag deposited on the dung skin are left in the first grid for continuous fermentation, the dung liquid is continuously fermented in the second grid, worm eggs continue to sink, pathogens die gradually, the dung liquid is further harmless, and the thickness of the generated dung skin and the dung slag is obviously reduced compared with that of the first grid; the liquid manure that flows into the third compartment, which is mainly used for temporarily storing the substantially harmless liquid manure, has generally become decomposed, wherein germs and parasitic eggs are substantially killed.
And the liquid dung treated by the three-grid septic tank enters a coarse gravel filter tank through a pipeline, is subjected to primary ecological filtration, and then enters a fine sand filter tank through a pipeline to be subjected to secondary ecological filtration, so that the sewage can be further purified.
The sewage after being subjected to ecological filtration by the coarse gravel filter tank and the fine sand filter tank enters the seven-level wetland absorption tank through the water guide channel, and the sewage entering the seven-level wetland absorption tank can be purified layer by layer through the precipitation and decomposition of pollutants in the sewage by biological fillers in the absorption tank, the absorption of nitrogen and phosphorus by aquatic plants in the wetland unit and the degradation of nitrogen and phosphorus by microorganisms attached to the aquatic plants, so that the finally discharged sewage meets the requirement of environmental protection discharge.
Compare with traditional sewage treatment system, unpowered sewage treatment system in this application directly utilizes the peculiar topography landform in karst area to select suitable natural negative topography design sewage treatment system, need not to install the power supply in this sewage treatment system, and sewage can the automatic flow, and the successive layer purifies, need not to consume the electric energy, has reached energy saving's effect, has carried out reasonable utilization to geographical environment simultaneously. The domestic sewage treatment mode not only solves the problem of environmental pollution caused by the domestic sewage in the karst mountain area, recycles pollutants in the domestic sewage, changes waste into valuable, but also provides a better living environment. The sewage treatment system in this application is unpowered, energy-concerving and environment-protective, no secondary pollution scientific and reasonable's sewage treatment mode, has extensive usability, and the steep transition of similar karst topography has a lot of simultaneously, and gravel, stone etc. that use also all have locally, and the resident can set up the equipment in this application near oneself family very easily, has fine popularization nature.
Furthermore, the absolute elevation of the sewage collecting tank is larger than that of the three-grid septic tank. The sewage collecting tank is arranged to be larger than the absolute elevation of the three-grid septic tank, namely, a power source is not needed to be provided, and the sewage in the sewage collecting tank can enter the three-grid septic tank by utilizing the principle that water flows to the lower part.
Furthermore, a grid net for filtering the domestic garbage is obliquely embedded in the middle of the sewage collecting tank through the water passing section, and a domestic garbage cleaning port is formed in the sewage collecting tank. This application inlays the grid net through crossing water section slope in the middle of the sewage collecting pond, can make the sewage that enters into in the sewage collecting pond at first carry out domestic waste's filtration, and the domestic waste clearance department who is set up is discharged from the sewage collecting pond by filterable domestic waste, has further improved unpowered sewage treatment system's treatment effect in this application, makes sewage treatment more thorough.
Furthermore, the absolute elevation of the three-grid type septic tank is greater than the absolute elevation of the coarse gravel filtering tank and less than the absolute elevation of the sewage collecting tank, the volume ratio of the first grid type septic tank, the second grid type septic tank and the third grid type septic tank of the three-grid type septic tank is 2: 1: 3, the three-grid type septic tanks are connected through a through pipe, the three-grid type septic tank is connected with the sewage collecting tank through a pipeline and is connected with the coarse gravel filtering tank and the fine sand filtering tank through a water guide channel. In the application, the absolute elevation of the three-grid septic tank is larger than the absolute elevation of the coarse gravel filtering tank and smaller than the absolute elevation of the sewage collecting tank, and the principle that water flows to a lower position is utilized to reduce the connection of power sources; meanwhile, the volume ratio of the first-grid septic tank, the second-grid septic tank and the third-grid septic tank of the three-grid septic tank is set to be 2: 1: 3 according to test detection, the setting of the ratio is more favorable for the flowing of sewage, and the sewage purification treatment effect is better.
Furthermore, the absolute elevation of the coarse gravel filter tank is higher than that of the fine sand filter tank and lower than that of the three-grid septic tank, 40-50mm cobblestones are piled in the fine sand filter tank, and emergent aquatic plants are planted at the top of the coarse gravel filter tank. In the application, the absolute elevation of the coarse gravel filter tank is higher than the absolute elevation of the fine sand filter tank, and the absolute elevation lower than the absolute elevation of the three-grid septic tank is also set by utilizing the principle that water flows to a low position, so that sewage can be discharged in sequence without installing a power source, and resources are saved; meanwhile, the top of the coarse gravel filter tank is planted with emergent aquatic plants, the action of the emergent aquatic plants on nitrogen and phosphorus pollutants in domestic sewage can be divided into direct action and indirect action, wherein the direct action is that the plants directly remove the pollutants in the sewage through the actions of absorption, adsorption, enrichment and the like, the aquatic plants can absorb the pollutants in a dissolved state and can also rapidly absorb the pollutants in suspended particles, the particles can be quickly transferred into cells after absorption, or partial pollutants are absorbed by using the huge body surface of the plants, and the effect of treating both principal and secondary aspects of diseases is achieved by harvesting the plants, nitrogen elements absorbed by the plants are mainly ammonium nitrogen and nitrate nitrogen and also comprise small molecular nitrogen-containing organic matters such as urea, amino acids and the like, wherein a part of nitrogen elements are reduced at the root and then are used for synthesizing various amino acids and nitrogen-containing organic compounds, then the phosphorus is transported to the ground in the form of amino acid or other organic compounds along with the transpiration flow, a part of phosphorus is directly transported to the leaves for reduction and utilization in the form of nitrate ions, and phosphorus absorbed by root systems is mainly transported to the ground in the form of phosphate ions and a small amount of synthesized organic compounds; the indirect effect means that the roots and the rhizomes of the plants transmit oxygen to the roots to form an aerobic environment in a root area or rhizosphere, the water flow speed is enhanced or maintained, a large number of microorganisms can be attached to the huge surface area of the roots, and the rhizosphere can create a microenvironment beneficial to the growth of various microorganisms to promote the decomposition of organic substances and the growth of nitrobacteria, so that the aim of removing nitrogen and phosphorus pollutants is fulfilled. The emergent aquatic plants are planted at the top of the coarse gravel filter tank, so that the sewage purification treatment effect is better, and the sewage is further purified better by utilizing natural resources.
Furthermore, the water inlet of the coarse gravel filter tank is connected through a filter tank water inlet pipeline, a plurality of water outlet small holes are formed in the positions, close to the bottom and the top of the filter tank water inlet pipeline, the pipeline is directly inserted into the bottom of the coarse gravel filter tank, 10-20mm cobblestones are fully piled in the fine sand filter tank, a water outlet is formed in one wall surface of the fine sand filter tank, and the fine sand filter tank is connected with the first-stage wetland absorption tank through a water guide channel. The sewage entering the pipeline is discharged to the coarse gravel filter tank from the water outlet small hole, the sewage enters the fine sand filter tank after primary filtration of the coarse gravel filter tank and is filtered by cobblestones, natural cobblestones are adopted for filtering, the full utilization of natural resources is further embodied, the sewage after twice filtration flows into the water guide channel through the water outlet in the wall surface of the fine sand filter tank, and the filtered sewage can be discharged into the primary wetland absorption tank through the water guide channel.
Furthermore, the armyworm-green algae is planted in the seven-level wetland absorption pool and filled with clay with different thicknesses, and ryegrass is planted at the side of the seven-level wetland absorption pool. The seven-level wetland digestion tank is characterized by comprising the following design steps: the water depth of the first-stage wetland absorption pond is 20-25cm, the thickness of the filled clay is 55-60cm, the planted plants are typha orientalis L, and the planting density is 4-6 plants/m2The function of the biological sewage treatment agent is to degrade COD, BOD5, total suspended matters (TSS), phosphorus and nitrogen in the domestic sewage; the depth of the water in the secondary wetland absorption pool is 25-30cm, the thickness of the filled clay is 50-55cm, and allium mongolicum regel is planted with the planting density of 10-15 plants/m2The function of the biological degradation agent is to degrade organic matters, ammonia nitrogen, phosphorus and heavy metals in domestic sewage; the depth of the water in the three-stage wetland absorption pool is 35-40cm, the thickness of the filled clay is 45-50cm, and the saxifrage is planted in the three-stage wetland absorption pool with the planting density of 15-20 plants/m2The function of the sewage treatment device is to further absorb nitrogen, phosphorus and organic matters in the domestic sewage; the depth of the water in the four-stage wetland absorption pool is 40-45cm, and the thickness of the filled clay is 40-45 cm; the interior of the pot is planted with Reli flower and lotus flower, the Reli flower is 1-2 clusters per square meter, the planting density of the lotus flower is 5-8 plants/m2It is mainly used for absorbing nitrogen and phosphorus in domestic sewage; the water depth of the five-level wetland absorption pool and the six-level wetland absorption pool is 60-70cm, the thickness of the filled clay is 35-40cm, and the myriophyllum elatinoides is planted in the clay, so that the main function of the clay is to thoroughly absorb nitrogen and phosphorus in domestic sewage; the depth of the water in the seven-grade wetland absorption pool is 90-120cm, lotus and water lily are planted in the seven-grade wetland absorption pool, and the planting density of the lotus and the water lily is 5-8 plants/m215-20 strains/m2And culturing fish, river snail, etc. therein, the main function of which is to detectAnd (5) detecting whether the water quality reaches the discharge standard and beautifying the environment.
The depth of the water in the five-stage wetland absorption pool is 70-80cm, and the thickness of the filled clay is 35-40 cm; the depth of the water in the six-stage wetland absorption pool is 80-90cm, and the thickness of the filled clay is 35-40 cm; the depth of the water in the seven-grade wetland absorption pool is 90-120cm, and cattail, allium mongolicum regel and lotus are planted in the seven-grade wetland absorption pool, and the planting density of the cattail, the allium mongolicum regel and the lotus is 10-15 plants/m215-20 strains/m210-15 strains/m2And planting ryegrass on the edge of the seventh-level wetland absorption pool, wherein the aquatic animals comprise fishes, field snails and the like.
Furthermore, cobbles with different granularities are filled in the water guide channel, and ryegrass is planted on the edge of the water guide channel. The water guide channel in this application not only has the effect of water guide, but also has the effect of purifying sewage, through the cobble of filling different granularities in the water guide channel, absorbs the heavy metal in aquatic, and the water guide channel is the escape canal of natural formation or the soil canal of simple construction simultaneously, and the construction installation is simple.
Furthermore, the wall surfaces of the sewage collecting tank, the three-grid septic tank, the coarse gravel filtering tank and the fine sand filtering tank are formed by brick-concrete structures, and white cement leakage-proof materials are brushed on the wall surfaces. This application is through brushing white cement on the wall in sewage collecting pit, three format septic tanks, coarse gravel filtering ponds, fine sand filtering ponds, can prevent the condition that the seepage appears in sewage treatment in-process, makes sewage treatment better.
To sum up, the utility model discloses compare in prior art's beneficial effect and be:
(1) the unpowered sewage treatment system in this application directly utilizes the distinctive topography and landform in karst area to select suitable natural negative topography design sewage treatment system, need not to install the power supply in this sewage treatment system, and sewage can the automatic flow, and the successive layer purifies, need not to consume the electric energy, has reached energy saving's effect, has carried out reasonable utilization to geographical environment simultaneously.
(2) The domestic sewage treatment mode not only solves the problem of environmental pollution caused by domestic sewage in the karst mountain area, recycles pollutants in the domestic sewage, changes waste into valuables, but also provides a better living environment. The sewage treatment system in the application has the advantages of unpowered, energy-saving, environment-friendly, scientific and reasonable sewage treatment mode without secondary pollution, wide usability and popularization value.
(3) This application inlays the grid net through crossing water section slope in the middle of the sewage collecting pond, can make the sewage that enters into in the sewage collecting pond at first carry out domestic waste's filtration, and the domestic waste clearance department who is set up is discharged from the sewage collecting pond by filterable domestic waste, has further improved unpowered sewage treatment system's treatment effect in this application, makes sewage treatment more thorough.
(4) The water guide channel in this application not only has the effect of water guide, but also has the effect of purifying sewage, through the cobble of filling different granularities in the water guide channel, absorbs the heavy metal in aquatic, and the water guide channel is the escape canal of natural formation or the soil canal of simple construction simultaneously, and the construction installation is simple.
(5) This application is through brushing white cement on the wall in sewage collecting pit, three format septic tanks, coarse gravel filtering ponds, fine sand filtering ponds, can prevent the condition that the seepage appears in sewage treatment in-process, makes sewage treatment better.
Drawings
FIG. 1 is a schematic structural view of an unpowered sewage treatment system of the present invention.
Labeled as: 1-a sewage collecting tank, 2-a three-grid septic tank, 3-a coarse gravel filter tank, 4-a fine sand filter tank, 5-a first-level wetland absorption tank, 6-a second-level wetland absorption tank, 7-a third-level wetland absorption tank, 8-ryegrass, 9-a fourth-level wetland absorption tank, 10-a fifth-level wetland absorption tank, 11-a sixth-level wetland absorption tank, 12-a seventh-level wetland absorption tank, 13-a grid net, 14-a first grid septic tank, 15-a second grid septic tank, 16-a third grid septic tank, 17-40-50mm cobblestones, 18-10-20mm cobblestones, 19-a water guide channel, 20-a water conveying pipeline, 21-a domestic garbage cleaning port, 22-a domestic sewage drainage channel, 23-a filter tank water inlet pipeline, 24-aquatic animals, 25-lotus, cattail and allium plants, 26-silt, 27-emergent aquatic plants, 28-clay and 29-water inlet.
Detailed Description
All features disclosed in this specification may be combined in any combination, except features and/or steps that are mutually exclusive.
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to fig. 1 and the specific embodiment.
Example 1
Referring to fig. 1, the utility model provides an unpowered sewage treatment system, including sewage collecting tank 1, three format septic tanks 2, coarse gravel filtering ponds 3 and fine sand filtering ponds 4, seven grades of wetland absorption ponds, water guide channel 19, sewage collecting tank 1, three format septic tanks 2, coarse gravel filtering ponds 3 and fine sand filtering ponds 4 pass through conduit 20 and connect, and fine sand filtering ponds 4 and seven grades of wetland absorption ponds pass through water guide channel 19 or ditch connection.
The working principle and the process of the technical scheme are as follows: a water guide channel 19 or a ditch of a steep transition zone in the karst mountain negative topography is used as a site for treating domestic sewage in the natural negative topography of the karst mountain wetland, a reservoir, a three-grid septic tank 2, a coarse gravel filter tank 3 and a fine sand filter tank 4 are built in the steep water guide channel 19 and are connected through pipelines, and a soil pit (soft pit) is built in the steep water guide channel 19 or the ditch to serve as a wetland absorption tank.
Domestic sewage reachs sewage collecting tank 1 through arranging domestic sewage ditch 22, water inlet 29 from sewage collecting tank 1 gets into in sewage collecting tank 1, it promotes the microbial activity to add silt 26 in sewage collecting tank 1, improve purifying effect, enter into three format septic tanks 2 through conduit 20, sewage at first enters into the first check of three format septic tanks 2, deposit than great solid matter and parasitic ova etc. in first check, begin preliminary fermentation decomposition, the sewage of handling through first check divide into the three-layer: pasty dung skin, relatively clear dung liquid and solid dung slag, the dung liquid after primary decomposition flows into the second grid, the dung skin floating on the second grid and the dung slag deposited on the second grid are left in the first grid for continuous fermentation, the dung liquid is continuously fermented in the second grid, worm eggs continuously sink, pathogens die gradually, the dung liquid is further harmless, and the thickness of the generated dung skin and the dung slag is obviously reduced compared with that of the first grid: the liquid manure that flows into the third compartment, which is mainly used for temporarily storing the substantially harmless liquid manure, has generally become decomposed, wherein germs and parasitic eggs are substantially killed.
The liquid manure treated by the three-grid septic tank 2 enters the coarse gravel filter tank 3 through a pipeline, is subjected to primary ecological filtration, and then enters the fine sand filter tank 4 through a pipeline for secondary ecological filtration, so that the sewage can be further purified.
The sewage after being subjected to ecological filtration by the coarse gravel filter tank 3 and the fine sand filter tank 4 enters the seven-grade wetland absorption tank through the water guide channel 19, and the sewage entering the seven-grade wetland absorption tank can be purified layer by layer through the precipitation and decomposition of pollutants in the sewage by biological fillers in the absorption tank, the absorption of nitrogen and phosphorus by aquatic plants in the wetland units and the degradation of nitrogen and phosphorus by microorganisms attached to the aquatic plants, so that the finally discharged sewage meets the requirement of environmental protection discharge.
Example 2
Referring to fig. 1, based on example 1, the absolute elevation of a sewage collecting tank 1 of this example is larger than the absolute elevation of a triple-format septic tank 2.
This application sets up the absolute elevation of sewage collecting pit 1 into the absolute elevation that is greater than three format septic tanks 2, need not to provide the power supply promptly, utilizes the principle that the rivers flow toward low department can make the sewage in the sewage collecting pit 1 enter into three format septic tanks 2.
Example 3
Referring to fig. 1, according to embodiment 1, a grid net 13 for filtering domestic garbage is obliquely embedded in the middle water passing section of a sewage collecting tank 1 of the embodiment, and a domestic garbage cleaning port 21 is arranged on the sewage collecting tank 1.
Grid network 13 is inlayed through crossing water section slope in sewage collecting pit 1 in the middle of this application, can make the sewage that enters into in sewage collecting pit 1 at first carry out domestic waste's filtration, and by the domestic waste clearance mouth 21 department discharge that filterable domestic waste set up from sewage collecting pit 1, further improved unpowered sewage treatment system's treatment effect in this application, make sewage treatment more thorough.
Example 4
Referring to fig. 1, based on example 1, the absolute elevation of a three-grid septic tank 2 of this example is greater than the absolute elevation of a gravel filter tank 3 and less than the absolute elevation of a sewage collecting tank 1, and the volume ratio of a first-grid septic tank 14, a second-grid septic tank 15, and a third-grid septic tank 16 of the three-grid septic tank 2 is 2: 1: 3, each grid septic tank is connected through a through pipe, the three-grid septic tank 2 is connected with the sewage collecting tank 1 through a pipeline, and is connected with the coarse gravel filtering tank 3 and the fine sand filtering tank 4 through a water guide channel 19.
In the application, the absolute elevation of the three-grid septic tank 2 is greater than the absolute elevation of the coarse gravel filtering tank 3 and less than the absolute elevation of the sewage collecting tank 1, and the principle that water flows to a lower position is utilized for reducing the connection of power sources; meanwhile, the volume ratio of the first grid septic tank 14, the second grid septic tank 15 and the third grid septic tank 16 of the three-grid septic tank 2 is set to be 2: 1: 3 according to test detection, and the setting of the ratio is more favorable for the flowing of sewage and has better sewage purification treatment effect.
Example 5
Referring to fig. 1, based on example 1, the absolute elevation of a coarse gravel filter tank 3 of the example is higher than the absolute elevation of a fine sand filter tank 4 and lower than the absolute elevation of a three-grid septic tank 2, the fine sand filter tank 4 is filled with 40-50mm cobblestones 17, and the top of the coarse gravel filter tank 3 is planted with emergent aquatic plants 27.
In the application, the absolute elevation of the coarse gravel filter tank 3 is higher than the absolute elevation of the fine gravel filter tank 4, and the absolute elevation lower than the absolute elevation of the three-grid septic tank 2 is also set by utilizing the principle that water flows to a lower position, so that sewage can be discharged in sequence without installing a power source, and resources are saved; meanwhile, the emergent aquatic plants 27 are planted at the top of the coarse gravel filter tank 3, the action of the emergent aquatic plants 27 on nitrogen and phosphorus pollutants in the domestic sewage can be divided into direct action and indirect action, wherein the direct action is that the plants directly remove the pollutants in the sewage through the actions of absorption, adsorption, enrichment and the like, the aquatic plants can absorb the pollutants in a dissolved state and can also rapidly absorb the pollutants in suspended particles, the particles can be quickly transferred into cells after absorption, or partial pollutants are absorbed by using the huge body surface of the plants, and the effect of treating both principal and secondary aspects of diseases is achieved by harvesting the plants, nitrogen elements absorbed by the plants are mainly ammonium nitrogen and nitrate nitrogen, and also comprise some small molecular nitrogen-containing organic matters such as urea, amino acids and the like, wherein a part of nitrogen elements are reduced at the roots and then are used for synthesizing various amino acids and nitrogen-containing organic compounds, then the phosphorus is transported to the ground in the form of amino acid or other organic compounds along with the transpiration flow, a part of phosphorus is directly transported to the leaves for reduction and utilization in the form of nitrate ions, and phosphorus absorbed by root systems is mainly transported to the ground in the form of phosphate ions and a small amount of synthesized organic compounds; the indirect effect means that the roots and the rhizomes of the plants transmit oxygen to the roots to form an aerobic environment in a root area or rhizosphere, the water flow speed is enhanced or maintained, a large number of microorganisms can be attached to the huge surface area of the roots, and the rhizosphere can create a microenvironment beneficial to the growth of various microorganisms to promote the decomposition of organic substances and the growth of nitrobacteria, so that the aim of removing nitrogen and phosphorus pollutants is fulfilled. Namely, the emergent aquatic plants 27 are planted at the top of the coarse gravel filter tank 3, so that the sewage purification treatment effect is better, and the sewage is further purified better by utilizing natural resources.
Example 6
Referring to fig. 1, based on embodiment 5, the water inlets 29 of the coarse gravel filter tank 3 of this embodiment are connected through a filter tank water inlet pipe 23, a plurality of small water outlet holes are arranged near the bottom and the top of the filter tank water inlet pipe 23, the pipe is directly inserted into the bottom of the coarse gravel filter tank 3, 10-20mm cobblestones 10 are piled in the fine sand filter tank 4, one wall surface of the fine sand filter tank 4 is provided with a water outlet, and the fine sand filter tank 4 is connected with the first-stage wetland absorption tank 5 through a water guide channel 19.
The sewage entering the water inlet pipeline 23 of the filter tank is discharged to the coarse gravel filter tank 3 from the water outlet small hole, the sewage enters the fine sand filter tank 4 after primary filtration of the coarse gravel filter tank 3 and is filtered by cobblestones, natural cobblestones are adopted for filtering, the full utilization of natural resources is further embodied, the sewage after twice filtration flows into the water guide channel 19 through the water outlet on the wall surface of the fine sand filter tank 4, and the filtered sewage can be discharged into the first-stage wetland absorption tank 5 through the water guide channel 19.
Example 7
Referring to fig. 1, according to example 1, watermifoil is planted in the seven-stage wetland absorption pond, clay 28 with different thicknesses is filled in the watermifoil, and ryegrass 8 is planted at the side of the seven-stage wetland absorption pond.
The seven-level wetland digestion tank is characterized by comprising the following design steps: the special wetland comprises a seven-level wetland absorption pool, wherein armyworm-tail algae are planted in the seven-level wetland absorption pool and filled with clay with different thicknesses, and ryegrass is planted at the side of the seven-level wetland absorption pool. The seven-level wetland digestion tank is characterized by comprising the following design steps: the water depth of the first-stage wetland absorption pond is 20-25cm, the thickness of the filled clay is 55-60cm, the planted plants are typha orientalis L, and the planting density is 4-6 plants/m2The function of the biological sewage treatment agent is to degrade COD, BOD5, total suspended matters (TSS), phosphorus and nitrogen in the domestic sewage; the depth of the water in the secondary wetland absorption pool is 25-30cm, the thickness of the filled clay is 50-55cm, and allium mongolicum regel is planted with the planting density of 10-15 plants/m2The function of the biological degradation agent is to degrade organic matters, ammonia nitrogen, phosphorus and heavy metals in domestic sewage; the depth of the water in the three-stage wetland absorption pool is 35-40cm, the thickness of the filled clay is 45-50cm, and the saxifrage is planted in the three-stage wetland absorption pool with the planting density of 15-20 plants/m2The function of the sewage treatment device is to further absorb nitrogen, phosphorus and organic matters in the domestic sewage; the depth of the water in the four-stage wetland absorption pool is 40-45cm, and the thickness of the filled clay is 40-45 cm; the interior of the pot is planted with Reli flower and lotus flower, the Reli flower is 1-2 clusters per square meter, the planting density of the lotus flower is 5-8 plants/m2It is mainly used for absorbing nitrogen and phosphorus in domestic sewage; the water depth of the five-level wetland absorption pool and the six-level wetland absorption pool is 60-70cm, the thickness of the filled clay is 35-40cm, and the myriophyllum elatinoides is planted in the clay, so that the main function of the clay is to thoroughly absorb nitrogen and phosphorus in domestic sewage; the depth of the water in the seven-grade wetland absorption pool is 90-120cm, and lotus seeds are planted in the seven-grade wetland absorption poolThe planting density of the water lily and the water lily is 5-8 plants/m215-20 strains/m2And fish, river snail and the like are cultured in the culture medium, and the culture medium is mainly used for detecting whether the water quality reaches the emission standard and beautifying the environment.
Example 8
Referring to fig. 1, the aqueduct 19 of the embodiment is filled with cobbles of different particle sizes based on the embodiment 1, and ryegrass 8 is planted on the edge of the aqueduct 19.
The water guide channel 19 in this application not only has the effect of water guide, but also has the effect of purifying sewage, through filling the cobble of different granularities in the water guide channel 19, absorbs the heavy metal in aquatic, and the water guide channel 19 is the native escape canal that forms naturally or the soil ditch of simple construction simultaneously, and the construction installation is simple.
Example 9
Referring to fig. 1, based on example 1, the wall surfaces of a sewage collecting tank 1, a three-grid septic tank 2, a coarse gravel filter tank 3 and a fine sand filter tank 4 of the example are composed of a brick-and-concrete structure, and white cement leakage-proof materials are brushed on the wall surfaces.
This application is through brushing white cement on the wall of sewage collecting pit 1, three format septic tanks 2, coarse gravel filtering ponds 3, fine sand filtering ponds 4, can prevent the condition that the seepage appears in the sewage treatment in-process, makes the sewage treatment effect better.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (9)
1. The unpowered sewage treatment system is characterized in that: including sewage collecting tank (1), three format septic tanks (2), coarse gravel filtering ponds (3) and fine sand filtering ponds (4), seven grades of wetland absorption pond, water guide channel (19), sewage collecting tank (1), three format septic tanks (2), coarse gravel filtering ponds (3) and fine sand filtering ponds (4) are connected through conduit (20), fine sand filtering ponds (4) and seven grades of wetland absorption pond pass through water guide channel (19) or ditch connection.
2. The unpowered sewage treatment system of claim 1, wherein: the absolute elevation of the sewage collecting tank (1) is larger than that of the three-grid septic tank (2).
3. The unpowered sewage treatment system of claim 1, wherein: the domestic garbage filter is characterized in that a grid net (13) used for filtering domestic garbage is obliquely embedded in the middle of the sewage collecting tank (1) through a water passing section, and a domestic garbage cleaning port (21) is formed in the sewage collecting tank (1).
4. The unpowered sewage treatment system of claim 1, wherein: the absolute elevation of three format septic tanks (2) is greater than the absolute elevation of coarse gravel filtering ponds (3), is less than the absolute elevation of sewage collecting pond (1), the volume ratio of first check septic tank (14), second check septic tank (15), third check septic tank (16) of three format septic tanks (2) is 2: 1: and 3, each grid septic tank is connected through a through pipe.
5. The unpowered sewage treatment system of claim 1, wherein: the absolute elevation of the coarse gravel filter tank (3) is higher than the absolute elevation of the fine sand filter tank (4) and lower than the absolute elevation of the three-grid septic tank (2), the fine sand filter tank (4) is fully piled with 40-50mm cobblestones (17), and the top of the coarse gravel filter tank (3) is planted with emergent aquatic plants (27).
6. The unpowered sewage treatment system of claim 1, wherein: the water inlet of coarse gravel filtering ponds (3) passes through filtering ponds inlet channel (23) and connects, is close to filtering ponds inlet channel (23) bottom and top all are provided with a plurality of little holes of water, inlet channel (23) disect insertion coarse gravel filtering ponds's (3) bottom, pile up 10-20mm cobblestone (10) in fine sand filtering ponds (4), a wall of fine sand filtering ponds (4) has a delivery port, fine sand filtering ponds (4) are connected through water guide channel (19) with first order wetland absorption pond (5).
7. The unpowered sewage treatment system of claim 1, wherein: the armyworm-green algae is planted in the seven-level wetland absorption pool and filled with clay (28) with different thicknesses, and ryegrass (8) is planted at the side of the seven-level wetland absorption pool.
8. The unpowered sewage treatment system of claim 1, wherein: cobblestones with different granularities are filled in the water guide channel (19), and ryegrass (8) is planted on the edge of the water guide channel (19).
9. The unpowered sewage treatment system of claim 1, wherein: the wall surfaces of the sewage collecting tank (1), the three-grid septic tank (2), the coarse gravel filtering tank (3) and the fine sand filtering tank (4) are formed by brick-concrete structures, and white cement leakage-proof materials are brushed on the wall surfaces.
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|---|---|---|---|
| CN201921188772.7U CN210825835U (en) | 2019-07-26 | 2019-07-26 | Unpowered sewage treatment system |
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| CN201921188772.7U CN210825835U (en) | 2019-07-26 | 2019-07-26 | Unpowered sewage treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056704A (en) * | 2019-12-16 | 2020-04-24 | 中国科学院地球化学研究所 | Unpowered sewage treatment system for natural negative topography of karst mountain wetland |
| CN114956453A (en) * | 2022-05-23 | 2022-08-30 | 中昇建设(广东)有限公司 | Ecological degradation method for sewage treatment |
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2019
- 2019-07-26 CN CN201921188772.7U patent/CN210825835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056704A (en) * | 2019-12-16 | 2020-04-24 | 中国科学院地球化学研究所 | Unpowered sewage treatment system for natural negative topography of karst mountain wetland |
| CN114956453A (en) * | 2022-05-23 | 2022-08-30 | 中昇建设(广东)有限公司 | Ecological degradation method for sewage treatment |
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