CN107459205B - River drain sewage treatment device and treatment method - Google Patents
River drain sewage treatment device and treatment method Download PDFInfo
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- CN107459205B CN107459205B CN201710673200.7A CN201710673200A CN107459205B CN 107459205 B CN107459205 B CN 107459205B CN 201710673200 A CN201710673200 A CN 201710673200A CN 107459205 B CN107459205 B CN 107459205B
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- 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)
- Biological Treatment Of Waste Water (AREA)
Abstract
A river drain sewage treatment device and a treatment method thereof, the device comprises a regulating tank, an anaerobic tank, an anoxic tank, an aerobic tank and a clarifying and filtering tank; the adjusting tank body is provided with a water inlet, the water inlet is positioned below a discharge outlet of a river channel and is used for receiving sewage, and the clarifying and filtering tank is provided with a water outlet; one or more of the anaerobic tank, the anoxic tank and the aerobic tank are arranged between the regulating tank and the clarifying and filtering tank and are connected with the regulating tank and the clarifying and filtering tank in series through pipelines; the adjusting tank is internally provided with a submersible pump and an induction device for automatically switching on and off the submersible pump, and the aerobic tank is internally provided with an aeration device and light suspended filler for mineralizing organic matters; the clarifying and filtering tank is used for clarifying and filtering the wastewater; sludge discharge pipes are arranged outside the adjusting tank, the anaerobic tank, the anoxic tank, the aerobic tank and the clarifying and filtering tank, and the anoxic tank and the aerobic tank are provided with micro submersible pumps. Has the advantages of adopting a multi-tank combination process, not generating malodorous gas, being beneficial to transportation, disassembly and assembly and sludge discharge.
Description
Technical Field
The invention relates to a device and a method for treating wastewater of a river drain by adopting a multi-tank combined process, which are particularly suitable for a drain of the river drain above the horizontal plane of a river, wherein sewage discharged from the drain passes through a pipeline (the pipeline is provided with a filter screen for filtering large-particle substances), and then sequentially flows through different combined tanks, organic matters in the sewage in a high-efficiency tank are degraded into small molecular substances by anaerobic-aerobic, and nitrogen and phosphorus are adsorbed or reduced by different treatment units in the tanks, so that the sewage is purified and is discharged into the river after reaching the standard.
Background
With the successive departure of the national policies of 'ten water' and the extinguishment of inferior V-class water bodies in Zhejiang province, the national demand for preventing and treating the water environment pollution is increasingly urgent. The river channel is more and more concerned by people as a final receptor of pollutants, and based on the opportunity of wiping out inferior V-type water bodies, the river channel water bodies attract the attention of the nation and people again, and the hot spot of the river channel for treating the wide concern is formed by how to repair the polluted river channel and how to reduce the pollutant discharge. As is well known, the ecological environment of the river water body has certain capacity of removing pollutants, and the reason that the river is polluted is that the discharge of the pollutants is seriously larger than the self-purification capacity of the water body. Therefore, it is the source and root to solve the problem of the bad V water body to explore an efficient and low-cost water treatment control device to reduce the pollutant discharge into the water body.
At present, common processes for river treatment and remediation are a physical method, a biological method, a plant floating island method and a river aeration reoxygenation method, a single treatment process cannot achieve a good river treatment effect, meanwhile, processes and devices for river drain treatment are not common, for example, in patent CN 206188592U, suspended matters in sewage are removed mainly by using a grit filter tank, the turbidity of a water body is reduced, and then the effect of river drain treatment is achieved through suspended matters, combined fillers and aquatic landscape plants. Since the device is not provided with an aeration device, anaerobic malodorous gas can be generated to influence the sense organ. The floatable sewage purification device (CN 105330021A) is an integrated sewage purification device, is suitable for sewage at a drain outlet of a river channel, and is divided into a plurality of water purification units by baffle plates; and secondly, the sludge discharge pipeline is built-in, which is not beneficial to the discharge of sludge.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the river drain sewage treatment device which adopts a multi-tank combined process, does not generate malodorous gas and is beneficial to transportation, disassembly and assembly and sludge discharge.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a wastewater treatment device for a river drain outlet comprises a regulating tank, an anaerobic tank, an anoxic tank, an aerobic tank and a clarifying and filtering tank; the adjusting tank body is provided with a water inlet, the water inlet is positioned below a discharge outlet of a river channel and is used for receiving sewage, and the clarifying filter tank is provided with a water outlet; one or more of the anaerobic tank, the anoxic tank and the aerobic tank are arranged between the regulating tank and the clarifying and filtering tank and are connected with the regulating tank and the clarifying and filtering tank in series through pipelines; the anaerobic tank is used for realizing microorganism anaerobic fermentation in a sewage anaerobic environment, the anoxic tank is used for organic matter degradation and/or denitrification reaction, and the aerobic tank is internally provided with an aeration device and light suspended filler and is used for mineralizing organic matters; the clarifying and filtering tank is used for clarifying and filtering the wastewater; the adjusting tank, the anaerobic tank, the anoxic tank, the aerobic tank and the clarifying and filtering tank are externally provided with sludge discharge pipes, and the anoxic tank and the aerobic tank are provided with micro submersible pumps.
By adopting the structure, a plurality of river drain sewage treatment devices are formed by mutually combining different tank bodies; each tank body is a single individual body, different combinations and sequences can be carried out according to the wastewater treatment requirements or wastewater composition properties of different river channels, in order to meet the requirement that wastewater treatment reaches the drainage standard of the river channels, the tank bodies can be increased or decreased, and the applicability and the selectivity are stronger; and has the advantages of detachability, convenient transportation and better flexibility.
Preferably, the wastewater treatment device for the drain outlet of the river channel can also comprise a photocatalytic tank, an enhanced dephosphorizing tank body and other chemical, physical and biological reaction tanks, and the like, wherein one or two of the photocatalytic tank, the enhanced dephosphorizing tank and the other chemical, physical and biological reaction tanks are arranged between the regulating tank and the clarifying and filtering tank; adopt this structure can realize the combination processing apparatus system of different waste water treatment demands.
The adjusting tank comprises an adjusting tank body, wherein a first submersible pump, a second submersible pump, a first water level line, a second water level line and a third water level line are arranged in the adjusting tank body, induction probes capable of automatically switching on and off the pump according to the water level line in the tank body are arranged on the first submersible pump and the second submersible pump, and the first submersible pump is lower than the second submersible pump. The structure can realize the following functions: when the water level in the adjusting tank body is lower than a first water level line, in order to prevent the tank body from losing the function of adjusting the wastewater due to insufficient water, river water needs to be supplemented from a river channel, and at the moment, the first submersible pump is automatically started to fill the river water into the tank body; when the water level is higher than the second water level line, the first submersible pump stops working, so that certain sewage receiving capacity of the tank body is reserved on the premise that the adjusting function is not influenced; when the water level is lower than the second water level line, the second submersible pump stops starting, so that a certain amount of water is in the adjusting tank and is used for discharging wastewater from the mixed sewage draining outlet; when the water level is lower than the third water level line, the second submersible pump is started, so that the mixed wastewater in the adjusting tank body is pumped into the subsequent treatment tank body.
The oil absorption cotton is placed in the adjusting tank body close to the upper part, so that oil stain and water are separated.
The anaerobic tank comprises an anaerobic tank body, wherein a lower inlet type water inlet pipeline and an upper outlet type water outlet pipeline are arranged on the anaerobic tank body, suspended fixed soft fillers (such as combined fillers and semi-soft fillers produced by Yixing market environmental protection equipment limited company easy to blue; combined fillers and semi-soft fillers produced by Jiangsu Huasai environmental protection filler limited company) are uniformly arranged in the tank body, the tank body is adjusted to realize sealing through a sealing cover, the sealing cover is connected with the anaerobic tank body through a detachable flange, and an exhaust port is formed in the upper part of the anaerobic tank body; the filler has the characteristics of being favorable for the attachment of microorganisms, strictly sealing the tank body, connecting the sealing cover and the tank body through a detachable flange, and opening an exhaust port above the anaerobic tank body.
The anoxic tank comprises an anoxic tank body, wherein a lower inlet type water inlet pipeline and an upper outlet type water outlet pipeline are arranged on the anoxic tank body, suspended soft fillers are uniformly arranged in the anoxic tank body, and the anoxic tank body is arranged in a semi-sealed mode (namely the tank body is not required to be completely sealed).
The invention relates to an aerobic tank, which comprises an aerobic tank body, wherein a lower inlet water inlet pipeline and an upper outlet water outlet pipeline are arranged on the aerobic tank body, an aeration device is positioned in the aerobic tank body and close to the bottom, and suspended light carriers (such as suspended ball filler carriers, biological fluidized bed filler carriers, modified fiber ball filler carriers and multi-surface hollow ball filler carriers produced by Jiangsu Haihuang environmental protection technology Co., Ltd.); if the aeration device specifically adopts an aeration pipe with a downward opening in a shape like a Chinese character 'kou', the aeration pipe is connected with an aeration air compressor, and electricity for the aeration air compressor is supplied through an offshore distribution box; the suspended light carrier has the characteristics of being beneficial to the attachment of microorganisms and adsorbing pollutants in a water body, and can realize better suspension in the aeration state of the tank body.
The clarifying and filtering tank comprises a clarifying and filtering tank body, wherein a lower inlet type water inlet pipeline and an upper outlet type water outlet are arranged on the clarifying and filtering tank body, 3 layers of filler layers are arranged in the clarifying and filtering tank body, each layer of filler is separated by a bearing partition plate, and small holes for water circulation are formed in the bearing partition plates; the 3 packing layers are a volcanic stone layer, a biological ceramic particle layer and an active carbon layer from bottom to top respectively. The activated carbon layer can be formed by columnar particles filled in a water-permeable mesh bag.
The sludge discharge pipe is connected with the sludge discharge port, the sludge pump can be used for periodically pumping out the precipitated sludge in the tank body, and meanwhile, the micro power pump of some tank bodies can ensure the flow of water bodies among the tank bodies. The tank bodies are all made of polypropylene (PP) plates which are water-floating materials, and the tank bodies are connected through the pipeline flanges, so that the tank bodies can float on the river surface or be fixed on the river bed.
In the various tank bodies, the tank body comprises a layer of bearing partition plate, and the bearing partition plate is provided with an opening; a sludge hopper is formed between the bearing clapboard and the tank body; the sludge hopper is used for storing and storing sludge and is beneficial to regularly extracting the sludge; the bearing partition plate can be used for placing accessories such as carriers, fillers and the like in other tank bodies and separating a sludge area from a reaction area to prevent sludge from floating up to the reaction area.
The invention also provides a method for treating wastewater by using the wastewater treatment device of the river drain outlet, which comprises the following steps:
(1) wastewater regulation: wastewater discharged from the sewage discharge outlet enters the tank body from the water inlet of the adjusting tank and is mixed with river water, so that the aim of diluting the wastewater is fulfilled, and preliminary precipitation and removal of oil stains and particulate matters are realized;
according to the water level of the tank body, the induction device of the submersible pump can be automatically switched on and off, and river water in a river channel can be automatically pumped into the adjusting tank body, or sewage in the adjusting tank body is pumped into a subsequent tank body, so that intelligent automatic control is realized, oil absorption cotton is placed on the upper layer of the tank body, oil stain and water separation can be realized, and oil stain is removed from the sewage;
(2) anaerobic microorganism treatment: the diluted and mixed sewage is subjected to microbial anaerobic fermentation in an anaerobic tank, pollutants are subjected to anaerobic digestion, and domestic sewage is effectively removed;
the tank body is strictly sealed and is filled with soft filler which is easy to adhere to anaerobic microorganisms;
(3) anoxic microbial treatment: the sewage enters an anoxic tank, the concentration of dissolved oxygen is low in the process, the microbial flora is in an anoxic state, and more complex reactions, such as denitrification reactions of nitrification and denitrification, can be generated while organic matters are degraded;
the tank body is internally provided with soft filler, and is a non-strictly sealed tank body;
(4) aerobic aeration microorganism treatment: the sewage enters the aerobic tank in the process of the existence of oxygen, and microorganisms can mineralize organic matters to ensure that the organic matters are stable and harmless. The tank body device is provided with an aeration pump and light suspended filler.
(5) A clarification filtration treatment method: the method mainly clarifies, filters and removes the wastewater, so that the effluent can obtain better sensory effect; the tank body is filled with a plurality of filter fillers, including biological ceramsite, volcanic rock, activated carbon bags and the like;
(6) all the tank body devices are provided with external sludge discharge pipes, and some tank bodies are also provided with miniature submersible pumps.
The method for treating the wastewater of the river drain by adopting the multi-tank combined process comprises the steps of treating the wastewater of the river drain by combining wastewater regulation, anaerobic microorganism treatment, anoxic microorganism treatment, aerobic aeration microorganism treatment, clarification filtration treatment and other treatment methods. Meanwhile, the combined tank body related to the method can be freely combined according to the composition property of the wastewater of the river drain.
The river drain passes through and receives dirty pipe direct connection composite set's water inlet, gets into the equalizing basin after, can handle through multiple jar body compound mode, discharges into the river course water at last. Different connection modes of the combined tank bodies can be selected according to the sewage characteristic of a river sewage discharge outlet, the tank body combination mode is not limited to the combination mode in the figure, and compared with an integrated device, the device provided by the invention has the advantages of detachability, convenience in transportation and better flexibility.
The invention has the advantages and beneficial effects that:
1. the invention provides a method for treating wastewater of a river drain by adopting a multi-tank combined process, which aims at the wastewater of the river drain higher than the water level of a river. The device is used for treating the wastewater of the drain outlet of the river channel, and the effluent quality can be ensured to reach the standard of a direct drainage river channel water body.
2. The accumulation of the sludge at the bottom of the tank body is the key to the normal operation of the device, and the sludge in the tank body is periodically and manually extracted through the external sludge discharge pipe so as to ensure the normal operation of the tank body.
3. When the water inlet of the sewage outlet is sufficient, the submersible pump in the adjusting tank body pumps the sewage in the tank body into the subsequent tank body, and when the water inlet of the sewage outlet is not sufficient, the water in the river channel can be supplied by the submersible pump, so that the water level in the tank body is always kept at a certain height, and the effect of adjusting the quality of the sewage is achieved.
4. The combined device can be mounted below the sewage draining exit in a manner of floating on the water surface or fixing on the riverbed according to the characteristics of the river channel of the sewage draining exit.
5. The filler and the microbial thallus related in the application patent have high strength, light filler and microorganisms for efficiently removing organic matters, so that the device obtains a more efficient wastewater treatment effect.
6. The device tank body related to the application patent comprises a photocatalysis tank body, a reinforced dephosphorizing tank body and all chemical, physical and biological reaction tank bodies similar to the shape and the appearance of the photocatalysis tank body.
Drawings
FIG. 1 is a flow chart of an assembly tank apparatus according to example 1.
FIG. 2 is a flow chart of the assembled tank apparatus of example 2.
FIG. 3 is a flow chart of an assembly tank apparatus according to example 3.
Fig. 4 is a schematic view of the structure of the regulating tank of the present invention.
Fig. 5 is a schematic view of the structure of the anaerobic tank of the present invention.
Fig. 6 is a schematic structural view of the anoxic tank of the present application.
Fig. 7 is a schematic view of the structure of the aerobic tank of the present invention.
Fig. 8 is a schematic structural view of the clarification filtration tank of the present invention.
Fig. 9 is a schematic view of the structure of the photocatalytic tank of the present invention.
FIG. 10 is a schematic view of the enhanced dephosphorizing tank of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited to the following embodiments, and any inventive modifications and substitutions within the scope of the present invention are considered to fall within the scope of the present invention.
Example 1
As shown in attached figure 1, the wastewater treatment device for the drainage outlet of the river channel comprises a regulating tank 1, an anaerobic tank 2, an anoxic tank 3, an aerobic tank 4 and a clarifying and filtering tank 5; the adjusting tank body is provided with a water inlet 1.1, the water inlet is positioned below a river drain outlet 6 and is used for receiving sewage, and the clarifying and filtering tank is provided with a water outlet 5.11; the anaerobic tank, the anoxic tank and the aerobic tank are sequentially connected in series between the regulating tank and the clarifying and filtering tank through pipelines; the anaerobic tank is used for realizing microorganism anaerobic fermentation in a sewage anaerobic environment, the anoxic tank is used for organic matter degradation and/or denitrification reaction, and the aerobic tank is internally provided with an aeration device and light suspended filler and is used for mineralizing organic matters; the clarifying and filtering tank is used for clarifying and filtering the wastewater; the adjusting tank, the anaerobic tank, the anoxic tank, the aerobic tank and the clarifying and filtering tank are externally provided with a sludge discharge pipe 7 and a micro submersible pump 8;
as shown in fig. 4: the adjusting tank comprises an adjusting tank body 1.2, wherein a first submersible pump 1.21, a second submersible pump 1.22, a first water level line 1.31, a second water level line 1.32 and a third water level line 1.33 are arranged in the adjusting tank body, induction probes (such as a liquid level controller DF-96ES, a Xinwang electronics Limited company in Zhejiang le City) capable of automatically switching on and off the pump according to the water level lines in the tank body are arranged on the first submersible pump and the second submersible pump, and the first submersible pump is lower than the second submersible pump; the first submersible pump and the second submersible pump are placed through a platform fixed on the inner wall of the adjusting tank body, and electric energy of the first submersible pump and the second submersible pump is supplied through an offshore distribution box. The structure can realize the following functions: when the water level in the adjusting tank body is lower than the first water level line, the first submersible pump is automatically started to fill river water into the tank body, and when the water level is higher than the second water level line, the first submersible pump stops working; when the water level is lower than the second water level line, the second submersible pump stops starting, and when the water level is lower than the third water level line, the second submersible pump is started; in addition, an oil absorption cotton layer (arranged below the water inlet) is arranged in the adjusting tank body close to the upper part, so that oil stain and water are separated.
As shown in fig. 5: the anaerobic tank body comprises an anaerobic tank body 2.1, a lower inlet type water inlet pipeline 9 and an upper outlet type water outlet pipeline 10 are arranged on the anaerobic tank body, suspended fixed soft fillers 2.2 are uniformly arranged in the tank body, the tank body is adjusted to realize sealing through a sealing cover, the sealing cover is connected with the anaerobic tank body through a detachable flange, and an exhaust port 2.3 is formed above the anaerobic tank body; the filler is characterized in that the filler is favorable for the attachment of microorganisms, the tank body is strictly sealed, the sealing cover is connected with the tank body through a detachable flange, and an exhaust port is arranged above the anaerobic tank body; meanwhile, a bearing partition plate 13 with an opening of 1 x 1cm is arranged above the tank sludge hopper 14.
As shown in the attached figure 6, the anoxic tank comprises an anoxic tank body 3.1, wherein a lower inlet type water inlet pipeline 9 and an upper outlet type water outlet pipeline 10 are arranged on the anoxic tank body, suspended soft fillers 3.2 are uniformly arranged in the anoxic tank body, and the anoxic tank body is arranged in a semi-sealed manner (namely the tank body is not required to be completely sealed); a bearing clapboard with 1 x 1cm opening is arranged above the tank sludge hopper.
As shown in the attached figure 7, the aerobic tank comprises an aerobic tank body 4.1, a lower inlet type water inlet pipeline 9 and an upper outlet type water outlet pipeline 10 are arranged on the aerobic tank body, an aeration device 4.2 is arranged in the aerobic tank body, the aeration device is positioned in the aerobic tank body and close to the bottom, and a suspended light carrier 4.3 is also arranged in the aerobic tank body; if the aeration device specifically adopts an aeration pipe with a downward opening in a shape like a Chinese character 'kou', the aeration pipe is connected with an aeration air compressor, and electricity for the aeration air compressor is supplied through an offshore distribution box; the suspended light carrier has the characteristics of being beneficial to the attachment of microorganisms and adsorbing pollutants in a water body, and can realize better suspension in the aeration state of the tank body. Meanwhile, a bearing partition plate with an opening of 1 x 1cm is arranged above the tank sludge hopper.
As shown in the attached figure 8, the clarification filtration tank comprises a clarification filtration tank body 5.1, a lower inlet type water inlet pipeline 9 and an upper outlet type water outlet 5.11 are arranged on the clarification filtration tank body, 3 layers of packing layers are arranged in the clarification filtration tank body, each layer of packing is separated by a bearing partition plate 5.2, and small holes for water circulation are formed in the bearing partition plates; the 3 packing layers are respectively a volcanic stone layer 5.3, a bioceramic layer 5.4 and an active carbon layer 5.5 from bottom to top; the activated carbon layer can be formed by columnar particles filled in a water-permeable mesh bag.
The sludge discharge pipe can be used for regularly pumping precipitated sludge in the tank bodies by using a sludge discharge pump, and meanwhile, some tank bodies are provided with miniature submersible pumps, so that the flowing of water bodies among the tank bodies can be ensured. The tank bodies are all made of polypropylene (PP) plates which are water-floating materials, and the tank bodies are connected through the pipeline flanges, so that the tank bodies can float on the river surface or be fixed on the river bed.
The lower inlet type water inlet pipeline and the upper outlet type water outlet pipeline are respectively connected with corresponding pipelines on adjacent tank bodies, so that sewage is purified by different tank bodies in sequence and is finally discharged from a water outlet of a clarifying and filtering tank, and the finally-purified wastewater is discharged up to the standard.
The sludge discharge pipe 7 is connected with the sludge discharge port 7.1, the sludge pump can be used for periodically pumping out the precipitated sludge in the tank body, and meanwhile, the micro power pump of some tank bodies can ensure the flow of water bodies among the tank bodies. The tank bodies are all made of polypropylene (PP) plates which are water-floating materials, and the tank bodies are connected through the pipeline flanges, so that the tank bodies can float on the river surface or be fixed on the river bed.
In the various tank bodies, the interior of each tank body comprises a layer of bearing partition plate 13, and the bearing partition plates are provided with openings with the size of 1 x 1 cm; a sludge hopper 14 is formed between the bearing clapboard and the inner part of the tank body at the lower part of the bearing clapboard; the sludge hopper is used for storing and storing sludge and is beneficial to regularly extracting the sludge; the bearing partition plate can be used for placing accessories such as carriers, fillers and the like in other tank bodies and separating a sludge area from a reaction area to prevent sludge from floating up to the reaction area.
By adopting the structure, a plurality of river drain sewage treatment devices are formed by mutually combining different tank bodies; each tank body is a single individual body, different combinations and sequences can be carried out according to the wastewater treatment requirements or wastewater composition properties of different river channels, in order to meet the requirement that wastewater treatment reaches the drainage standard of the river channels, the tank bodies can be increased or decreased, and the applicability and the selectivity are stronger; and has the advantages of detachability, convenient transportation and better flexibility.
The specific treatment steps comprise:
(1) wastewater regulation: the waste water that the drain discharged mixes with the river, reaches the purpose of diluting sewage, simultaneously, can realize in this jar body that greasy dirt and particulate matter's preliminary deposit is got rid of. The tank body is mainly characterized in that the tank body is provided with an induction device which can automatically switch on and off the submersible pump according to the water level of the tank body, and can automatically pump river water in a river channel into the adjusting tank body or pump sewage in the adjusting tank body into a subsequent tank body, so that intelligent automatic control is realized, oil absorption cotton is placed on the upper layer of the tank body, oil and water separation can be realized, and oil stain is removed from the sewage;
(2) anaerobic microorganism treatment: the diluted and mixed sewage is subjected to microbial anaerobic fermentation in an anaerobic environment, so that pollutants are subjected to anaerobic digestion, and the domestic sewage is effectively removed. The tank body is mainly characterized in that the tank body is strictly sealed and is filled with soft filler which is easy for anaerobic microorganisms to attach.
(3) Anoxic microbial treatment: in the process, the dissolved oxygen concentration is low, the microbial flora is in an anoxic state, and more complex reactions, such as denitrification reactions of nitrification and denitrification, can be generated while organic matters are degraded. The tank body is mainly characterized in that the tank body is provided with soft packing like an anaerobic tank body, and the tank body is a non-strictly sealed tank body.
(4) Aerobic aeration microorganism treatment: in the process, oxygen exists, and microorganisms can mineralize organic matters to ensure that the organic matters are stable and harmless. The tank body device is provided with an aeration pump and light suspended filler.
(5) A clarification filtration treatment method: the method mainly clarifies, filters and removes the wastewater, so that the effluent (wastewater) has better sensory effect. The tank body is filled with various filtering fillers, including biological ceramsite, volcanic rock, activated carbon bags and the like.
(6) All the tank body devices are provided with external sludge discharge pipes, and some tank bodies are provided with miniature submersible pumps according to requirements.
And (2) in the step (1), the adjusting tank body is arranged below the sewage draining outlet and used for receiving the waste water at the opening of the sewage draining pipe. The tank body is internally provided with a platform for fixing two submersible pumps, and a vertical fall with a certain distance is arranged between the two platforms. Meanwhile, the two pumps are provided with induction probes which can automatically switch on and off according to the water level in the tank body. The electricity for the two submersible pumps is supplied through an offshore power distribution box. A bearing clapboard with 1 x 1cm opening is arranged above the tank sludge hopper.
And (3) in the step (2), the anaerobic tank body is provided with a downward inlet water pipeline and an upward outlet water pipeline, and meanwhile, suspended fixed soft fillers are uniformly arranged in the tank body, and have the characteristics of facilitating the attachment of microorganisms, the tank body is strictly sealed, the sealing cover is connected with the tank body through a detachable flange, and an exhaust port is formed in the upper part of the tank body. Meanwhile, a bearing clapboard with 1 x 1cm opening is arranged above the tank sludge hopper.
The equipment in the anoxic tank body in the step (3) is basically the same as that of the anaerobic tank body, and suspended soft fillers are uniformly arranged in the tank body, except that the tank body is not completely sealed, and a bearing partition plate with an opening of 1 x 1cm is arranged above a sludge hopper of the tank body.
And (4) the aerobic tank body in the step (4) is provided with an aeration pipe with a downward opening and a square bottom, and electricity is supplied to the aeration air compressor through an offshore distribution box. The aerobic tank is internally provided with a suspended light carrier, the characteristic of the carrier is favorable for the attachment of microorganisms and the adsorption of pollutants in water, and the carrier can realize better suspension in the aeration state of the tank. Meanwhile, a bearing partition plate with an opening of 1 x 1cm is arranged above the tank sludge hopper.
In the step (5), the clarifying and filtering tank body is divided into 3 layers, each layer is separated by a bearing partition plate with the length of 1 x 1cm, and volcanic rock, biological ceramsite and active carbon are respectively filled from bottom to top. The active carbon is columnar particles and is filled into a water-permeable mesh bag.
And (4) a sludge discharge pipe is arranged outside the tank body in the step (6), and a sludge discharge pump can be used for periodically pumping out the precipitated sludge in the tank body. Meanwhile, some tank bodies are provided with miniature submersible pumps, so that the flow of water bodies among the tank bodies can be ensured.
The tank bodies in the steps (1) - (5) are all made of water-floating polypropylene (PP) plates, and the tank bodies are connected through pipeline flanges, so that the tank bodies can float on the river surface or be fixed on the riverbed.
The device has the advantages that the removal rates of ammonia nitrogen, COD and total phosphorus in the waste water of a certain sewage outlet (the concentration of ammonia nitrogen in the original waste water is 30PPM, the COD is 260PPM and the total phosphorus is 10PPM) are 40.83%, 80.52% and 58.8% respectively.
Example 2
As shown in the attached figure 2, the wastewater treatment device for the river drain of the embodiment comprises a regulating tank 1, an anoxic tank 3, an aerobic tank 4 and a clarifying and filtering tank 5; the adjusting tank body is provided with a water inlet 1.1, the water inlet is positioned below a river drain outlet 6 and is used for receiving sewage, and the clarifying and filtering tank is provided with a water outlet 5.1; the anoxic tank and the aerobic tank are sequentially connected in series between the regulating tank and the clarifying and filtering tank through pipelines; the adjusting tank is internally provided with a submersible pump and an induction device for automatically switching on and off the submersible pump, the anoxic tank is used for organic matter degradation and/or denitrification reaction, and the aerobic tank is internally provided with an aeration device and light suspended filler and is used for mineralizing organic matters; the clarifying and filtering tank is used for clarifying and filtering the wastewater; the adjusting tank, the anoxic tank, the aerobic tank and the clarifying and filtering tank are all externally provided with sludge discharge pipes 7, and the anoxic tank and the aerobic tank are provided with micro submersible pumps 8;
the respective specific structures of the adjusting tank 1, the anoxic tank 3, the aerobic tank 4 and the clarifying and filtering tank 5 are the same as those of the embodiment 1, and only the difference is that the anaerobic tank of the embodiment 1 is removed.
The device has the removal rates of 33.28 percent, 84.35 percent and 62.8 percent for ammonia nitrogen, COD and total phosphorus in the waste water at a certain sewage outlet (the concentration of ammonia nitrogen in the original waste water is 18PPM, the COD is 202PPM and the total phosphorus is 5 PPM).
Example 3
As shown in the attached figure 3, the wastewater treatment device for the drainage outlet of the river channel comprises a regulating tank 1, an aerobic tank 4 and a clarifying and filtering tank 5; the adjusting tank body is provided with a water inlet 1.1, the water inlet is positioned below a river drain outlet 6 and is used for receiving sewage, and the clarifying and filtering tank is provided with a water outlet 5.1; the aerobic tank is connected in series between the regulating tank and the clarifying and filtering tank through a pipeline; the adjusting tank is internally provided with a submersible pump and an induction device for automatically switching on and off the submersible pump, and the aerobic tank is internally provided with an aeration device and light suspended filler and is used for mineralizing organic matters; the clarifying and filtering tank is used for clarifying and filtering the wastewater; the adjusting tank, the aerobic tank and the clarifying and filtering tank are all externally provided with sludge discharge pipes 7, and the aerobic tank is provided with a micro submersible pump 8;
the respective structures of the adjusting tank 1, the aerobic tank 4 and the clarifying and filtering tank 5 are the same as those of the embodiment 1, and only the difference is that the anaerobic tank and the anoxic tank of the embodiment 1 are removed.
The device has the advantages that the removal rates of ammonia nitrogen, COD and total phosphorus in the waste water at a certain sewage outlet (the concentration of ammonia nitrogen in the original waste water is 10PPM, the COD is 150PPM and the total phosphorus is 3PPM) are respectively 35.6%, 74.58% and 60.33%.
Example 4
The photocatalyst tank 11 shown in the attached figure 9 comprises a photocatalyst tank body 11.1, wherein an ultraviolet lamp tube 11.2 is arranged in the photocatalyst tank body 11.1, and power is supplied through an offshore distribution box; as shown in fig. 10, the enhanced dephosphorizing tank 12 comprises an enhanced dephosphorizing tank body 12.1, a mechanical stirrer 12.2 is arranged in the enhanced dephosphorizing tank body, and a medicament feeding port 12.3 is arranged on the side wall for adding a medicament for implementing enhanced dephosphorizing; and the photocatalyst tank and the enhanced dephosphorizing tank are both provided with a lower inlet type water inlet pipeline and an upper outlet type water outlet pipeline which are used for being connected with adjacent tanks in series to realize the purification treatment of sewage or wastewater; these two types of cans were subjected to a combination reaction with any of examples 1 to 3 as required.
The phosphorus removal tank device (added with the phosphorus removal agent) can achieve 94.44% of the total phosphorus removal rate of the wastewater at a certain discharge outlet (the total phosphorus concentration in the original wastewater is as high as 30 PPM).
Claims (4)
1. The utility model provides a river drain effluent treatment plant which characterized in that: the device comprises a regulating tank, an anaerobic tank, an anoxic tank, an aerobic tank and a clarifying and filtering tank; the anaerobic tank, the anoxic tank and the aerobic tank are detachably arranged between the adjusting tank and the clarifying and filtering tank and are connected with the adjusting tank and the clarifying and filtering tank in series through pipelines; sludge discharge pipes are arranged on the adjusting tank, the anaerobic tank, the anoxic tank, the aerobic tank and the clarifying and filtering tank, and the anoxic tank and the aerobic tank are provided with micro submersible pumps;
the regulating tank comprises a regulating tank body, a first submersible pump, a second submersible pump, a first water level line, a second water level line and a third water level line are arranged in the regulating tank body, induction probes capable of automatically switching on and off the pump according to the water level line in the tank body are arranged on the first submersible pump and the second submersible pump, and the first submersible pump is lower than the second submersible pump; the adjusting tank body is provided with a water inlet, and the water inlet is positioned below a drainage outlet of a river channel and is used for receiving sewage;
the anaerobic tank is used for realizing microorganism anaerobic fermentation in a sewage anaerobic environment and comprises an anaerobic tank body, a lower inlet type water inlet pipeline and an upper outlet type water outlet pipeline are arranged on the anaerobic tank body, suspended fixed soft fillers are uniformly arranged in the tank body, the tank body is adjusted to realize sealing through a sealing cover, the sealing cover is connected with the anaerobic tank body through a detachable flange, and an exhaust port is formed above the anaerobic tank body;
the anaerobic tank is used for organic matter degradation and/or denitrification reaction, and comprises an anaerobic tank body, wherein a downward inlet type water inlet pipeline and an upward outlet type water outlet pipeline are arranged on the anaerobic tank body, suspended soft fillers are uniformly arranged in the anaerobic tank body, and the anaerobic tank body is arranged in a semi-sealed manner;
an aeration device and light suspended fillers are arranged in the aerobic tank and are used for mineralizing organic matters; the aeration device is positioned in the aerobic tank body and close to the bottom;
the clarifying and filtering tank is used for clarifying and filtering the wastewater; the clarifying and filtering tank comprises a clarifying and filtering tank body, a lower inlet type water inlet pipeline and an upper outlet type water outlet are arranged on the clarifying and filtering tank body, 3 layers of packing layers are arranged in the clarifying and filtering tank body, each layer of packing is separated by a bearing partition plate, and small holes for water circulation are formed in the bearing partition plates; the 3 packing layers are a volcanic stone layer, a biological ceramic particle layer and an active carbon layer from bottom to top respectively; the active carbon layer is composed of columnar particles filled in a water-permeable mesh bag.
2. The device for treating wastewater in a drain outlet of a river channel as claimed in claim 1, wherein: the oil absorption cotton is placed in the adjusting tank body close to the upper part.
3. The device for treating wastewater in a drain outlet of a river channel as claimed in claim 1, wherein: the tank bodies are all made of water-floating material polypropylene plates, and the tank bodies are connected through pipeline flanges and can float on the river surface or be fixed on the river bed.
4. The device for treating wastewater in a drain outlet of a river channel as claimed in claim 1, wherein: the wastewater treatment device for the river drain outlet further comprises a photocatalytic tank and an enhanced dephosphorizing tank.
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| CN112537877A (en) * | 2021-01-26 | 2021-03-23 | 杭州珀威贸易有限公司 | Industrial wastewater sewage pipes handles terminal in grades |
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| CN204111415U (en) * | 2014-09-11 | 2015-01-21 | 山东普民环保科技有限公司 | A kind of sewage purification multi-stage biological reaction unit |
| CN105731724B (en) * | 2016-02-06 | 2019-02-15 | 天津科技大学 | A kind of offshore platform life sewage treatment and reuse method with high salt |
| CN205603432U (en) * | 2016-05-16 | 2016-09-28 | 华南理工大学 | Domestic sewage's integration treatment device |
| CN206188592U (en) * | 2016-11-09 | 2017-05-24 | 浙江绿凯环保科技股份有限公司 | Town and country riverway sewage outlet sewage treatment plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203782003U (en) * | 2014-01-08 | 2014-08-20 | 上海清浥环保科技有限公司 | Anti-blockage sludge thickener |
| CN105330021A (en) * | 2015-11-24 | 2016-02-17 | 浙江大学宁波理工学院 | Floatable sewage purification device |
| CN106365362A (en) * | 2016-11-25 | 2017-02-01 | 南方创业（天津）科技发展有限公司 | Multi-module combination movable purification equipment |
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