CN109081529B - Intelligent bionic domestic sewage treatment method - Google Patents
Intelligent bionic domestic sewage treatment method Download PDFInfo
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- CN109081529B CN109081529B CN201811212714.3A CN201811212714A CN109081529B CN 109081529 B CN109081529 B CN 109081529B CN 201811212714 A CN201811212714 A CN 201811212714A CN 109081529 B CN109081529 B CN 109081529B
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- 239000010865 sewage Substances 0.000 title claims abstract description 83
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 14
- 231100000719 pollutant Toxicity 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 37
- 239000000945 filler Substances 0.000 claims description 32
- 239000004576 sand Substances 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 18
- 238000005273 aeration Methods 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 238000004062 sedimentation Methods 0.000 claims description 14
- 241000196324 Embryophyta Species 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 8
- 239000013049 sediment Substances 0.000 claims description 8
- 241001465754 Metazoa Species 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 5
- 230000006870 function Effects 0.000 claims description 5
- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 4
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- 238000006243 chemical reaction Methods 0.000 claims description 4
- 210000002249 digestive system Anatomy 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- 235000015097 nutrients Nutrition 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
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- 241000195649 Chlorella <Chlorellales> Species 0.000 claims description 3
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- 241000233948 Typha Species 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 235000001968 nicotinic acid Nutrition 0.000 claims description 2
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- 230000000968 intestinal effect Effects 0.000 claims 1
- 206010063385 Intellectualisation Diseases 0.000 abstract description 3
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- 238000005457 optimization Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 108010070551 Meat Proteins Proteins 0.000 description 1
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
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- 230000014759 maintenance of location Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000036561 sun exposure Effects 0.000 description 1
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses an intelligent bionic domestic sewage treatment method, which combines the characteristics of rural sewage, adopts a bionic principle, adopts an intelligent low-energy operation concept to design the method for treating the rural domestic sewage, and ensures that effluent can reach the first-level B standard in GB18918-2002 of pollutant emission standards of urban sewage treatment plants and the optimization mode can reach the first-level A standard in GB18918-2002 of pollutant emission standards of urban sewage treatment plants; the system can be applied to wide rural decentralized areas. It can also be used in landscape areas such as service areas, tourist areas, etc. Has the advantages of wide application, low investment, low operation cost, stable water outlet, bionic design, multi-mode operation, integration, intellectualization and the like.
Description
Technical Field
The invention belongs to the technical field of sewage treatment equipment, and particularly relates to an intelligent bionic domestic sewage treatment method.
Background
The important reason for difficult treatment of rural domestic sewage is that the discharge is dispersed, and the daily variation of water quality and water quantity is large. Most of the houses in rural areas in China are self-built houses, lack of building layout planning, have high randomness, cause different domestic sewage discharge modes of residents, and are sprayed on site to naturally evaporate or infiltrate into soil, and the other houses are discharged nearby and enter streams, rivers and lakes through open ditches or underdrain. As the environmental bearing capacity is gradually reduced, rural domestic sewage is not treated, and natural environment is damaged to a certain extent by random discharge.
Meanwhile, rural domestic sewage quality in different areas also has great difference, and the treatment technology is required to have flexibility. Different wind in ten and common practice in hundred and different living habits and economic conditions of rural residents in different areas are different, so that the concentration of pollutants such as nitrogen, phosphorus and the like in domestic sewage is different. For example, in areas where the consumption ratio of meat protein foods is high, the concentration of ammonia nitrogen in domestic sewage is high, whereas in areas where a large amount of detergents are used, the concentration of phosphorus in domestic sewage is high. A single treatment mode cannot adapt to the water quality conditions of different areas.
The rural population of China is flowing, and a large number of population is outside for a long time due to the reasons of school, caretaker and the like, so the resident population is less. And holidays, especially spring festival, are returned to the countryside by a large population. Therefore, the rural domestic sewage discharge amount is greatly changed, and the change causes a plurality of difficulties for the scale design of the sewage station and the stable operation of the sewage station.
The design of rural sewage treatment station scale is generally according to the water consumption quota calculation sewage volume of people. When the water quantity is changed excessively during holidays according to the design scale of the resident population, the stable operation of the system is destroyed, and the yielding water is difficult to reach the standard. When the design scale is designed according to the registered population, the design scale is overlarge at ordinary times, the water quantity cannot reach 50% of the design water quantity, the system is abnormally operated, project investment is increased, and waste is caused. The oversized individual areas result in sun-shine engineering.
In the anti-observation treatment technology, most rural sewage treatment facilities are mainly managed by villagers, so that the treatment technology is required to have stability and convenience besides high efficiency, but the phenomenon that the existing sewage treatment facilities are built up and used only for sun exposure is common, and the sewage treatment facilities are not used and not used. Meanwhile, due to the limitation of economic conditions, facilities with high construction and operation costs cannot operate for a long time in rural areas.
With the aim of the invention, the rural domestic sewage treatment is heavy and far away. A process which can be used for stably reaching the standard of effluent aiming at the characteristics of large change of rural sewage and water quality, and has low investment and running cost and simple operation is needed.
Disclosure of Invention
The invention provides an intelligent bionic domestic sewage treatment method for solving the defects of the prior art.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is an intelligent bionic domestic sewage treatment system, comprising:
A grating sand sediment zone A, GDClean TM Bio-Tank biochemical pretreatment device B, an adjusting Tank C, a water collecting zone E, GDClean TM MCW primary artificial wetland device D, GDClean TM MCW secondary artificial wetland device F; the grid sand sediment zone A and the GDClean TM Bio-Tank biochemical pretreatment device B are connected through a connecting pipe, the GDClean TM Bio-Tank biochemical pretreatment device B and the regulating Tank C are connected through a flow pipe, an overflow port I is arranged between the GDClean TM Bio-Tank biochemical pretreatment device B and the GDClean TM MCW primary artificial wetland device D for communication, meanwhile, the regulating Tank C and the GDClean TM MCW primary artificial wetland device D are connected through a lifting pump pipe, a water distribution pipe is arranged in the GDClean TM MCW primary artificial wetland device D according to a preset mode and is connected to the water collecting zone E, the water collecting zone E is connected with the GDClean TM MCW secondary artificial wetland device F through an overflow port II, a water outlet pipe is arranged in the GDClean TM MCW secondary artificial wetland device F according to a preset mode, and the GDClean TM MCW secondary artificial wetland device F adopts a horizontal submerged artificial wetland.
The domestic sewage is led into the grid sand sedimentation area A through the water inlet pipe, suspended impurities in the sewage are removed through the grid machine arranged in the grid sand sedimentation area A, and the suspended impurities are prevented from entering a pretreatment tank of the next stage to damage equipment in the sewage.
Wherein, the grid machine is one or more of a rotary mechanical grid machine, a reverse cutting type rotary grid machine, a net type chain-turning grid machine and a fixed grid machine.
Wherein, the gap between the grid seams of the grid machine is 1-5 mm.
Wherein, GDClean TM Bio-Tank biochemical pretreatment device B sets up the flow pipe that flows to equalizing basin C, and the overflow mouth one of flow direction GDClean TM MCW one-level constructed wetland device D to make overflow mouth one set up highly higher than the flow pipe.
Wherein, the juncture of the biochemical pretreatment device B of the Bio-Tank of the grid sand sediment zone A, GDClean TM and the regulating reservoir C is provided with a fan unit, aeration pipes are arranged in the biochemical pretreatment device B of the Bio-Tank of GDClean TM and the regulating reservoir C, and the aeration pipes are respectively provided with an electric valve for controlling on-off, and the operation mode of the primary artificial wetland device D, GDClean TM MCW of the biochemical pretreatment device B, GDClean TM MCW of the fan unit is changed by adjusting the operation mode of the secondary artificial wetland device F of the Bio-Tank of GDClean TM.
The working modes of the wind turbine unit comprise an unpowered mode, a micro-power mode and a high-efficiency mode, and the working modes of the GDClean TM MCW primary constructed wetland device D comprise a vertical flow constructed wetland mode and a horizontal flow constructed wetland mode; under the unpowered mode, the GDClean TM Bio-Tank biochemical pretreatment device B is set to be in an anaerobic state, effluent directly flows into the GDClean TM MCW first-stage constructed wetland device D directly through an overflow port, and the effluent meets the first-stage B standard for discharge; under the micro-power mode, the GDClean TM Bio-Tank biochemical pretreatment device B is in a micro-oxygen state, required air is provided by a fan unit, the liquid level height is controlled by the regulating Tank C, water discharged from the regulating Tank C flows into the GDClean TM MCW primary artificial wetland device D through a lifting pump pipe, the working mode of the GDClean TM MCW primary artificial wetland device D is adjusted to be a vertical flow artificial wetland mode, and the discharged water meets the primary A standard; under the high-efficient mode, GDClean TM Bio-Tank biochemical pretreatment device B sets up to the oxygen boosting state, provides required air through the fan unit, through equalizing basin C control liquid level height, equalizing basin C improves water dissolved oxygen through the aeration, equalizing basin C goes out water and flows into GDClean TM MCW one-level constructed wetland device D through the lift pump pipe, goes out water and satisfies one-level B standard emission.
When the working modes of the fan unit are a micro-power mode and a high-efficiency mode, the water pump of the regulating tank starts to operate at a preset high liquid level and stops to operate at a preset low liquid level.
Wherein, the bottom of GDClean TM MCW first-stage constructed wetland device D is provided with a biomembrane filler formed by filler and plant root system, the bottom of GDClean TM MCW second-stage constructed wetland device F is provided with a dephosphorization filler, the dephosphorization filler is one or more of oyster shell, volcanic rock and zeolite, and the depth of the filler is 1m and 0.8m respectively; the filler is divided into an upper layer, a middle layer and a lower layer, and the thickness of the three layers of filler is 5-10cm, 10-25cm and 20-40cm respectively.
Wherein, the dephosphorization plants arranged in GDClean TM MCW first-stage constructed wetland device D and GDClean TM MCW second-stage constructed wetland device F are selected from one or more of typha, reed or chlorella.
Compared with the prior art, the invention provides an intelligent bionic domestic sewage treatment method, which combines the characteristics of rural sewage, adopts a bionic principle, adopts an intelligent low-energy operation concept to design the method for treating the rural domestic sewage, ensures that effluent can reach the first-level B standard in GB 18918-2002 of pollutant emission standards of urban sewage treatment plants, and ensures that an optimization mode can reach the first-level A standard in GB 18918-2002 of pollutant emission standards of urban sewage treatment plants; the system can be applied to wide rural decentralized areas. It can also be used in landscape areas such as service areas, tourist areas, etc. Has the advantages of wide application, low investment, low operation cost, stable water outlet, bionic design, multi-mode operation, integration, intellectualization and the like.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent bionic domestic sewage treatment system provided by the invention;
FIG. 2 is a schematic diagram of pipeline connection of the intelligent bionic domestic sewage treatment system provided by the invention;
FIG. 3 is a schematic diagram of the intelligent bionic domestic sewage treatment system according to the present invention in the unpowered mode;
FIG. 4 is a schematic diagram of the intelligent bionic domestic sewage treatment system in micro-power and high-efficiency mode;
FIG. 5 is a flow diagram of an unpowered mode of the intelligent bionic domestic sewage treatment system provided by the invention;
FIG. 6 is a flow diagram of a micro-power and high-efficiency mode of the intelligent bionic domestic sewage treatment system provided by the invention;
fig. 7 is a schematic diagram of an aeration system of the intelligent bionic domestic sewage treatment system provided by the invention.
Detailed Description
The technical scheme of the present invention is described in more detail below in connection with the specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, shall fall within the scope of the invention.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an intelligent bionic domestic sewage treatment system provided by the invention, and fig. 2 is a schematic corresponding pipeline connection diagram. Comprising the following steps:
A grating sand sediment zone A, GDClean TM Bio-Tank biochemical pretreatment device B, an adjusting Tank C, a water collecting zone E, GDClean TM MCW primary artificial wetland device D, GDClean TM MCW secondary artificial wetland device F; the grating sand sediment zone A and GDClean TM Bio-Tank biochemical pretreatment device B are connected through a connecting pipe 2, GDClean TM Bio-Tank biochemical pretreatment device B and a regulating Tank C are connected through a flow pipe 4, an overflow port I3 is arranged between the GDClean TM Bio-Tank biochemical pretreatment device B and GDClean TM MCW primary artificial wetland device D for communication, meanwhile, the regulating Tank C and GDClean TM MCW primary artificial wetland device D are connected through a lifting pump pipe 5, a water distribution pipe 6 is arranged in the GDClean TM MCW primary artificial wetland device D according to a preset mode and connected to a water collecting zone E, and the water collecting zone E is connected with a GDClean TM MCW secondary artificial wetland device F through an overflow port II 7 and a water outlet pipe 8 is arranged in the GDClean TM MCW secondary artificial wetland device F according to a preset mode.
Preferably, domestic sewage is introduced into the grid sand sedimentation zone A through the water inlet pipe 1, and suspended impurities in the sewage are removed through a grid machine arranged in the grid sand sedimentation zone A, so that the suspended impurities are prevented from entering a pretreatment tank of the next stage to damage equipment in the sewage.
Preferably, the grid machine is one or more of a rotary mechanical grid machine, a reverse cutting type rotary grid machine, a net type chain-turning grid machine and a fixed grid machine.
Preferably, the grid gap of the grid machine is 1-5 mm.
Preferably, the GDClean TM Bio-Tank biochemical pretreatment device B is provided with a flow pipe 4 flowing to the regulating Tank C and an overflow port I3 flowing to the GDClean TM MCW primary constructed wetland device D, and the overflow port I3 is arranged at a higher height than the flow pipe 4.
Preferably, a fan unit is arranged at the junction of the Bio-Tank biochemical pretreatment device B and the regulating Tank C of the grid sand sediment zone A, GDClean TM, aeration pipes are arranged in the Bio-Tank biochemical pretreatment device B and the regulating Tank C of GDClean TM, electric valves are respectively arranged on the aeration pipes to control on-off, and the operation mode of the GDClean TM Bio-Tank biochemical pretreatment device B, GDClean TM MCW primary artificial wetland device D, GDClean TM MCW secondary artificial wetland device F is changed by adjusting the operation mode of the fan unit.
Preferably, the working modes of the fan unit comprise an unpowered mode, a micro-power mode and a high-efficiency mode, and the working modes of the GDClean TM MCW primary constructed wetland device D comprise a vertical flow constructed wetland mode and a horizontal flow constructed wetland mode; under the unpowered mode, the GDClean TM Bio-Tank biochemical pretreatment device B is set to be in an anaerobic state, effluent directly flows into the GDClean TM MCW first-stage constructed wetland device D through the overflow port I3, and the effluent meets the first-stage B standard for discharge; in the micro-power mode, a GDClean TM Bio-Tank biochemical pretreatment device B is in a micro-oxygen state, required air is provided by a fan unit, the liquid level height is controlled by an adjusting Tank C, water discharged from the adjusting Tank C flows into a GDClean TM MCW primary artificial wetland device D through a lifting pump pipe 5, the working mode of the GDClean TM MCW primary artificial wetland device D is adjusted to be a vertical flow artificial wetland mode, and the discharged water meets the primary A standard; under the high-efficient mode, GDClean TM Bio-Tank biochemical pretreatment device B sets up to the oxygen boosting state, provides required air through the fan unit, through equalizing basin C control liquid level height, equalizing basin C improves water dissolved oxygen through the aeration, equalizing basin C goes out water and flows into GDClean TM MCW one-level constructed wetland device D through lift pump pipe 5, goes out water and satisfies one-level B standard emission.
Preferably, when the working modes of the fan unit are a micro-power mode and a high-efficiency mode, the water pump of the regulating tank starts to run at a preset high liquid level and stops to run at a preset low liquid level.
Preferably, the bottom of GDClean TM MCW first-stage constructed wetland device D is provided with a biomembrane filler formed by a filler and a plant root system, the bottom of GDClean TM MCW second-stage constructed wetland device F is provided with a dephosphorization filler, the dephosphorization filler is one or more of oyster shell, volcanic rock and zeolite, and the depth of the filler is 1m and 0.8m respectively; the filler is divided into an upper layer, a middle layer and a lower layer, and the thickness of the three layers of filler is 5-10cm, 10-25cm and 20-40cm respectively.
Preferably, the dephosphorization plants arranged in the GDClean TM MCW first-stage constructed wetland device D and the GDClean TM MCW second-stage constructed wetland device F are selected from one or more of typha, reed or chlorella.
The intelligent bionic domestic sewage treatment system mainly comprises GDClean TM Bio-Tank biochemical pretreatment devices and GDClean TM MCW multistage artificial wetland treatment devices.
According to the bionics principle of the animal digestive system, the balance of the system is maintained through the close cooperation of the digestive system organs, and the GDClean TM Bio-Tank biochemical pretreatment device simulates the stomach function of animals, has the functions of mixing, storing and pre-decomposing and converting, provides good pre-conditions for the subsequent treatment device to absorb nutrient substances, and can realize the operation in multiple modes of anaerobism, micro-oxygen, aerobiosis and the like according to the water quantity. The GDClean TM MCW multistage wetland device simulates the intestinal tract system of animals, is a place for mainly absorbing and converting nutrient substances, and realizes absorption and degradation of pollutants through different functional areas. Clean water beneficial to ecological environment is generated through the action of the system, so that the whole ecological system can well run, and different operation modes of high and low loads can be realized in an active and passive water distribution mode.
The sewage is subjected to solid-liquid separation in a septic tank, and then is collected by a pipeline and enters the sewage treatment system. Firstly entering a grid sand sedimentation area A to intercept large floaters and sand. The effluent enters a pretreatment tank to degrade part of pollutants, so that the load of a subsequent unit is reduced. And under low load, sewage directly enters a subsequent two-stage horizontal subsurface flow constructed wetland unit through passive water distribution of GDClean TM Bio-Tank biochemical pretreatment device B and is discharged after reaching the standard. Under high load, the effluent enters an adjusting tank in a biochemical pretreatment efficient mode, and the effluent is actively and uniformly distributed into the first-stage vertical flow constructed wetland through a water pump by the adjusting tank, and then enters the second-stage horizontal subsurface flow constructed wetland to be discharged after reaching the standard.
GDClean TM Bio-Tank biochemical pretreatment can be flexibly configured, and when the village is in a resident population change condition, the population is less or the inflow water quality is better, the pretreatment system is set to be in an anaerobic operation state, so that unpowered operation of the system is realized, and the operation cost is saved to the greatest extent. When the population is more or the quality of the inlet water is poor, the aeration system is started, the wetland lifting water distribution system is started, the system operates under micro-power, and various pollutants can be effectively removed, so that the outlet water of the system is stable, and the emission standard is improved.
The GDClean TM MCW multistage constructed wetland integrates three functions of physics, chemistry and biology on the treatment of wastewater. After the wetland system is mature, the surface of the filler and the plant root system form a biological film due to the growth of a large number of microorganisms. When the wastewater flows through the biological membrane, a large amount of SS is blocked and stopped by the filler and the plant root system, and organic pollutants are removed through absorption, assimilation and dissimilation of the biological membrane. The oxygen is transferred and released by the plant root system in the wetland bed system, so that the surrounding environment of the wetland bed system is in aerobic, anoxic and anaerobic states in sequence, the nitrogen and phosphorus in the wastewater can be ensured to be directly absorbed by plants and microorganisms as nutritional components, and the nitrogen and phosphorus can be removed from the wastewater through nitrification and denitrification and excessive accumulation of the microorganisms on the phosphorus.
The GDClean TM MCW multi-stage constructed wetland has a plurality of operation modes, and when the operation is unpowered, the first stage is the horizontal subsurface flow constructed wetland, and the second stage is the horizontal subsurface flow constructed wetland. When the micro-power and high-efficiency mode is operated, the first stage is a vertical flow constructed wetland, the second stage is a horizontal subsurface flow constructed wetland, and the wetland operation mode is adjusted through water distribution, so that the wetland removal efficiency is improved. The impact load resistance of the wetland is improved, and the wetland can be operated up to the standard under different working conditions.
The biological carbonization filler is arranged in the GDClean TM Bio-Tank biochemical pretreatment device B, so that the sewage treatment capacity of a pretreatment biochemical Tank can be greatly improved, the biological carbonization filler is made of biological materials such as corn cobs, straws and the like to be carbonized particle filler, and the carbonized particle filler is arranged in a carrier to realize biological growth environment and provide a certain carbon source.
Referring to fig. 3 and 4, rural domestic sewage is introduced into a grid sand sedimentation zone a from a water inlet pipe 1, suspended impurities in the sewage are removed by a grid machine arranged in the grid sand sedimentation zone a, and the suspended impurities are prevented from entering a pretreatment tank of the next stage to damage equipment in the wastewater. The grid machine can be one or more of a rotary mechanical grid machine, a reverse cutting type rotary grid machine, a net type chain-transfer grid machine and a fixed grid machine, and in order to meet the water inlet requirement of a treatment pool at the lower stage, the grid machine preferably uses a fine grid machine with a grid gap of 1-5 mm.
The sewage treated by the grid pond A flows into a GDClean TM Bio-Tank biochemical pretreatment device B from a grid sand sedimentation area to the regulating pond pipe 2, and high-efficiency filler is added into the sewage to reduce the content of pollutants, and meanwhile, the types and the quantity of microorganisms can be increased. GDClean TM Bio-Tank biochemical pretreatment device B is designed into a rectangular structure, wherein one surface of the device is provided with a flow pipe 4 flowing to a regulating Tank C, the other surface of the device flows to an overflow port I3 of the first-stage constructed wetland E, and the overflow port I3 is higher than the flow pipe 4. At this time, according to the actual sewage treatment capacity, the flow direction of the sewage can be selected into a plurality of modes of operation modes:
(1) Under the unpowered mode, GDClean TM Bio-Tank biochemical pretreatment device B is in an anaerobic state, and effluent directly flows into GDClean TM MCW first-stage constructed wetland device D through overflow port I3. After the sewage enters GDClean TM Bio-Tank biochemical pretreatment device B from the grating pool A, the sewage directly enters GDClean TM MCW primary artificial wetland device D through the overflow port I3 because the lifting pump pipe 5 is not started. The water flow state is 1-2-3-6-7-8. Finally, the emission reaches the first-level B standard.
The mode 1 is a powerless mode, the water pump and the fan unit in the regulating tank C stop working, and sewage automatically flows.
(2) In the micro-power mode, GDClean TM Bio-Tank biochemical pretreatment device B is in a micro-oxygen state, and the required air is provided by a fan unit as shown in FIG. 7. The liquid level of the system is controlled by the regulating tank C, and the functions of regulating water quantity, water quality and water distribution are achieved. And the water discharged from the regulating tank C enters a GDClean TM MCW first-stage constructed wetland device D through a lifting pump pipe 5. The elevation of the orifice of the flow pipe 4 is lower than that of the overflow port I3, and sewage is prevented from entering the GDClean TM MCW first-stage constructed wetland device D through the overflow port I3 by control. At the moment, GDClean TM MCW first-stage constructed wetland device D is a vertical flow constructed wetland, and the water has enough dissolved oxygen, so that the nitrification and denitrification reaction of subsequent microorganisms are facilitated, and the denitrification effect is good. The water flow state is 1-2-4-5-6-7-8. Finally, the effluent can reach the first-level A standard for discharge.
Mode 2 micro-power mode, regulating reservoir C water pump starts running at high liquid level, running for about 10 minutes per hour. And stopping the operation when the operation is carried out to a low liquid level. The air quantity of the fan unit controls micro-aeration through an automatic control valve. The operation is controlled by a time relay to stop for 1 hour for 2 hours.
(3) In the high-efficiency mode, the sewage amount is 2 times of the design water amount, the system is in the high-load mode, the GDClean TM Bio-Tank biochemical pretreatment device B is in an oxygen-enriched state, required air is provided through a fan unit as shown in fig. 7, and the air quantity is automatically adjusted through an automatic control program, so that the ventilation quantity is increased. In the same micro-power mode, the liquid level of the system is controlled by the regulating tank C, and the functions of regulating water quantity, water quality and water distribution are achieved. The regulating tank C improves water dissolved oxygen through aeration, is favorable for subsequent microorganism action, and the yielding water enters GDClean TM MCW first-stage constructed wetland device D through a lifting pump pipe 5. The flow state of the water in the same micro-power mode is 1-2-4-5-6-7-8. The pretreatment reduces the concentration of pollutants, reduces the load of a subsequent treatment unit, and finally the effluent can reach the first-level B standard discharge.
Mode 3 high efficiency mode, the water pump of regulating reservoir C is started to run at a high level for about 20 minutes per hour. And stopping the operation when the operation is carried out to a low liquid level. The air quantity of the fan unit is controlled to be aerated through an automatic control valve. The operation is controlled by a time relay to stop for 1 hour for 5 hours.
Referring to fig. 5, sewage vertically flows through a wetland bed after entering GDClean TM MCW first-stage constructed wetland device D, forms a biological film through a filler and plant root system to remove a large amount of pollutants, and then enters a water collecting area E through a sewage pipe 6, and crushed stones with different particle diameters are arranged at the bottom of GDClean TM MCW first-stage constructed wetland device D to play a role in sewage filtration.
Referring to fig. 6, a flow direction overflow port two 7 is arranged in the water collecting area E, sewage flows into GDClean TM MCW second-stage constructed wetland device F through overflow port two 7, dephosphorization filler is arranged at the bottom of GDClean TM MCW second-stage constructed wetland device F, the dephosphorization filler can be one or more of oyster shell, volcanic rock and zeolite, in order to meet the water outlet requirement, the dephosphorization filler preferably uses oyster shell, and the treated sewage is discharged from the water outlet pipe 8.
Referring to fig. 7, fans are disposed at the junctions of the Bio-Tank biochemical pretreatment device B and the conditioning Tank C of the grid sand sedimentation area A, GDClean TM, and aeration pipes are arranged in the GDClean TM Bio-Tank biochemical pretreatment device B and the conditioning Tank C. Electric valves are respectively arranged on the GDClean TM Bio-Tank biochemical pretreatment device B and aeration pipes for aeration of the regulating Tank.
In this example, the sewage remained in the pretreatment tank for 10 hours, and in the conditioning tank for 10 hours. The hydraulic load of the first-stage artificial wetland and the second-stage artificial wetland is 0.25m 3/m2 d, and the total hydraulic retention time is 1.5d.
The sizes of the reaction tanks are respectively as follows: the grid sand setting pool of the grid sand setting area A is 2.76mX0.6mX2.0m, the pretreatment pool of the GDClean TM Bio-Tank biochemical pretreatment device B is 2.76mX1.5mX2.0m, the regulating pool C is 2.34mX1.0mX2.0m, the first-stage constructed wetland of the GDClean TM MCW first-stage constructed wetland device D is 5 mX4mX1.3m, the water collecting area E0.5mX4mX1.3m, and the second-stage constructed wetland of the GDClean TM MCW second-stage constructed wetland device F is 5 mX4mX1.3m.
In this embodiment, the pipe diameters of the pipes are respectively: the water inlet pipe 1 is DN200, the grid sand sedimentation area is DN150, the overflow port I3 is DN80, the flow pipe 4 is DN150, the lifting pump pipe 5 is DN40, the water distribution pipe 6 is DN150, the overflow port II 7 is DN80, the water distribution pipe 8 is DN150, and UPVC materials are used.
The following group of intelligent bionic domestic sewage treatment system case data: the design water quantity is 10 tons/day, and the running time is 15-30 days. Wherein the unpowered and micro-powered water quantity is 10 tons/day, and the high-efficiency mode water quantity is 20 tons/day. The quality of the effluent can reach the first-level B standard in the unpowered and efficient mode and reach the first-level A standard in the micro-power mode.
The intelligent bionic domestic sewage treatment system imitates the human ecological system, utilizes ecological design, and the whole system reflects ecological energy conservation. The system is designed as a garden, has no noise, no odor and no secondary pollution; can operate in unpowered and micro-powered modes. By changing the operation parameters of the equipment, the equipment is suitable for different use environments; the system is highly intelligent: the multiple modes achieve intelligent operation and one-key operation through intelligent control system programming; the system has strong impact load resistance, and the multi-mode is aimed at different use environments, so that the water outlet is ensured to reach the standard stably, and the water outlet is better under specific conditions; the pretreatment and wetland treatment system does not need to be operated by professional personnel. The system can be remotely monitored by combining the technology of the Internet of things; the normal mode is unpowered, personnel is not required to be on duty, and the operation cost is low; the system is compact in design, small in occupied area and investment-saving; the distributed design of the system is beneficial to reducing the investment of a pipe network, a large river is not required to be traversed, the construction speed of the pipe network is high, the construction difficulty is low, the lifting pump station is relatively less, and the investment and operation management cost of the sewage collection system are low; the application range is wide, and the method can be applied to wide rural scattered areas. It can also be used in service area, tourist area and other areas with unstable water quality and water quantity and large variation.
Compared with the prior art, the intelligent bionic domestic sewage treatment system IBSTS provided by the invention combines the characteristics of rural sewage, adopts a bionic principle, adopts an intelligent low-energy-consumption operation concept to design the system for treating rural domestic sewage, ensures that effluent can reach the first-level B standard in the pollutant emission standard of urban sewage treatment plants GB 18918-2002, and ensures that an optimization mode can reach the first-level A standard in the pollutant emission standard of urban sewage treatment plants GB 18918-2002; the system can be applied to wide rural decentralized areas. It can also be used in landscape areas such as service areas, tourist areas, etc. Has the advantages of wide application, low investment, low operation cost, stable water outlet, bionic design, multi-mode operation, integration, intellectualization and the like.
The foregoing is only the embodiments of the present invention, and therefore, the patent scope of the invention is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the invention.
Claims (1)
1. An intelligent bionic domestic sewage treatment method is characterized in that a treatment system adopted comprises: a grating sand sediment zone A, GDClean TM Bio-Tank biochemical pretreatment device B, an adjusting Tank C, a water collecting zone E, GDClean TM MCW primary artificial wetland device D, GDClean TM MCW secondary artificial wetland device F; the system comprises a grid sand sedimentation area A, a GDClean TM Bio-Tank biochemical pretreatment device B, a GDClean TM Bio-Tank biochemical pretreatment device B, a regulating Tank C, a flow pipe (4), an overflow port I (3) and a water outlet pipe (8), wherein the grid sand sedimentation area A is connected with the GDClean TM Bio-Tank biochemical pretreatment device B through the connecting pipe (2), the GDClean TM Bio-Tank biochemical pretreatment device B is connected with the regulating Tank C through the flow pipe (4), the overflow port I (3) is arranged between the GDClean TM Bio-Tank biochemical pretreatment device B and the GDClean TM MCW primary constructed wetland device D, the regulating Tank C is connected with the GDClean TM MCW primary constructed wetland device D through a lifting pump pipe (5), a water distribution pipe (6) is arranged in the GDClean TM MCW primary constructed wetland device D according to a preset mode and is connected with a water collecting area E, the water collecting area E is connected with the GDClean TM MCW secondary constructed wetland device F through the overflow port II (7), the water outlet pipe (8) is arranged in the GDClean TM MCW secondary constructed wetland device F according to a preset mode, and the GDClean TM MCW secondary constructed wetland device F adopts a horizontal subsurface flow constructed wetland;
The domestic sewage is led into the grid sand sedimentation area A through a water inlet pipe (1), suspended impurities in the sewage are removed through a grid machine arranged in the grid sand sedimentation area A, and the suspended impurities are prevented from entering a pretreatment tank of the next stage to damage equipment in the sewage; the grid machine is one or more of a rotary mechanical grid machine, a reverse cutting type rotary grid machine, a net type chain-turning grid machine and a fixed grid machine; the gap between the grid seams of the grid machine is 1-5 mm; the GDClean TM Bio-Tank biochemical pretreatment device B is provided with a flow pipe (4) flowing to the regulating Tank C and an overflow port I (3) flowing to the GDClean TM MCW primary artificial wetland device D, and the overflow port I (3) is arranged at a higher height than the flow pipe (4);
A fan unit is arranged at the junction of the biological pretreatment device B of the grill sand sediment area A, GDClean TM Bio-Tank and the regulating Tank C, aeration pipes are arranged in the biological pretreatment device B of GDClean TM Bio-Tank and the regulating Tank C, electric valves are respectively arranged on the aeration pipes to control on-off, and the working mode of the fan unit is adjusted to change the working mode of the first-stage artificial wetland device D, GDClean TM MCW of the biological pretreatment device B, GDClean TM MCW of GDClean TM Bio-Tank;
According to the bionics principle of the animal digestive system, the balance of the system is maintained through the close cooperation of the digestive system organs, and the GDClean TM Bio-Tank biochemical pretreatment device B simulates the stomach function of animals, has the functions of mixing, storing and pre-decomposing conversion, provides good pre-conditions for the subsequent treatment devices to absorb nutrient substances, and can realize anaerobic, micro-aerobic and aerobic mode operation according to the water quantity; the GDClean TM MCW primary artificial wetland device D and the GDClean TM MCW secondary artificial wetland device F simulate intestinal systems of animals, are absorption and conversion sites of nutrient substances, and realize absorption and degradation of pollutants through a functional area;
the sewage treatment method comprises the following steps:
The working modes of the fan unit comprise an unpowered mode, a micro-power mode and a high-efficiency mode, and the working modes of the GDClean TM MCW primary constructed wetland device D comprise a vertical flow constructed wetland mode and a horizontal flow constructed wetland mode; under the unpowered mode, a water pump and a fan unit in the regulating Tank C stop working, sewage automatically flows, the GDClean TM Bio-Tank biochemical pretreatment device B is set to be in an anaerobic state, effluent directly flows into the GDClean TM MCW first-stage constructed wetland device D through the overflow port I (3), then sequentially enters the water collecting area E and the GDClean TM MCW second-stage constructed wetland device F, and the effluent meets the first-stage B standard for discharge;
Under the micro-power mode, a GDClean TM Bio-Tank biochemical pretreatment device B is in a micro-oxygen state, required air is provided by a fan unit, the liquid level height is controlled by an adjusting Tank C, water discharged from the adjusting Tank C flows into a GDClean TM MCW primary artificial wetland device D through a lifting pump pipe (5), the working mode of the GDClean TM MCW primary artificial wetland device D is adjusted to be a vertical flow artificial wetland mode, then the water enters a water collecting area E and a GDClean TM MCW secondary artificial wetland device F in sequence, and the discharged water meets the standard of the primary A; under the high-efficiency mode, the GDClean TM Bio-Tank biochemical pretreatment device B is set to be in an oxygen-enriched state, required air is provided by a fan unit, the liquid level height is controlled by the regulating Tank C, the dissolved oxygen of a water body is improved by aeration of the regulating Tank C, water discharged from the regulating Tank C flows into the GDClean TM MCW primary artificial wetland device D through the lifting pump pipe (5) and then sequentially enters the water collecting area E and the GDClean TM MCW secondary artificial wetland device F, and the water discharged meets the primary B standard;
When the working modes of the fan unit are a micro-power mode and a high-efficiency mode, the water pump of the regulating tank starts to operate at a preset high liquid level and stops to operate at a preset low liquid level;
The bottom of GDClean TM MCW first-stage constructed wetland device D is provided with a biomembrane filler formed by filler and plant root system, the bottom of GDClean TM MCW second-stage constructed wetland device F is provided with a dephosphorization filler, the dephosphorization filler is one or more of oyster shell, volcanic rock and zeolite, and the depth of the filler is 1m and 0.8m respectively; the filler is divided into an upper layer, a middle layer and a lower layer, and the thickness of the three layers of filler is 5-10cm, 10-25cm and 20-40cm respectively;
The dephosphorization plants arranged in the GDClean TM MCW primary artificial wetland device D and the GDClean TM MCW secondary artificial wetland device F are one or more selected from typha, reed or chlorella.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201999829U (en) * | 2010-11-30 | 2011-10-05 | 广东森洋环境保护工程设备有限公司 | Distributed sewage treatment system for rural life |
| CN108585213A (en) * | 2018-08-01 | 2018-09-28 | 北京东方园林环境股份有限公司 | A kind of switchable type drowned flow artificial wet land and its execution switching method |
| CN209636057U (en) * | 2018-10-18 | 2019-11-15 | 湖北加德科技股份有限公司 | Intelligent bionic domestic sewage processing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6159371A (en) * | 1997-05-30 | 2000-12-12 | Albuquerque Public Schools District No. 12 | Constructed wetlands remediation system |
| CN100551850C (en) * | 2006-04-29 | 2009-10-21 | 广州德润环保科技发展有限公司 | Composite ecological treatment method of sewage for artificial wet land and system thereof |
| CN206219381U (en) * | 2016-09-29 | 2017-06-06 | 江苏广植科技有限公司 | Suitable for cold district perpendicular flow artificial ecological wetland sewage disposal system |
| CN106746351A (en) * | 2017-01-16 | 2017-05-31 | 深圳市碧园环保技术有限公司 | A kind of processing system for domestic sewage in rural areas |
| CN207958077U (en) * | 2018-02-05 | 2018-10-12 | 武汉大学 | A kind of unpowered rural Sewage Treatment Facilities bionical based on enteron aisle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201999829U (en) * | 2010-11-30 | 2011-10-05 | 广东森洋环境保护工程设备有限公司 | Distributed sewage treatment system for rural life |
| CN108585213A (en) * | 2018-08-01 | 2018-09-28 | 北京东方园林环境股份有限公司 | A kind of switchable type drowned flow artificial wet land and its execution switching method |
| CN209636057U (en) * | 2018-10-18 | 2019-11-15 | 湖北加德科技股份有限公司 | Intelligent bionic domestic sewage processing system |
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