CN110862199B - Biological purification device and method for treating black and odorous water body in river channel - Google Patents
Biological purification device and method for treating black and odorous water body in river channel Download PDFInfo
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- CN110862199B CN110862199B CN201911316737.3A CN201911316737A CN110862199B CN 110862199 B CN110862199 B CN 110862199B CN 201911316737 A CN201911316737 A CN 201911316737A CN 110862199 B CN110862199 B CN 110862199B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
Abstract
The invention relates to the technical field of sewage purification, in particular to a biological purification device and a method for treating black and odorous water in a river channel, which realize the collection and the removal of suspended matters of the black and odorous water through an enclosure unit; through adding flocculating agent mixing flocculation in coagulating air supporting pond again, through impulsive stirring subassembly, mechanical stirring subassembly effect, reinforcing mixing homogeneity, through biological purification unit internal filtration, biological purification bed biological action, aeration chamber oxidation purification, the unit dispersion that scatters, reinforcing oxygen contact rate improves black and odorous water purification efficiency, has improved the treatment effect of black and odorous water, simple structure, convenient operation.
Description
Technical Field
The invention relates to the technical field of sewage purification, in particular to a biological purification device and a biological purification method for treating black and odorous water in a river channel.
Background
At present, the black and odorous water body restoration technology at home and abroad is mainly divided into three main categories of physical restoration, chemical restoration and biological restoration. The physical remediation is a process of mechanical drying removal, bottom mud dredging, water diversion and sludge flushing, water diversion and dilution and the like, and improves hydrological conditions, bottom mud environmental conditions and the like of the polluted water body, so that the aim of remediation of the black and odorous water body is fulfilled. Chemical remediation is to add chemical modifying agents into the polluted water body and to achieve the purpose of removing pollutants in the water body through chemical reaction between the agents and the pollutants, such as chemical flocculating agents, chemical precipitating agents and the like. Bioremediation is the use of organisms as the host to absorb, degrade and convert pollutants in soil and water, including the use of plants, animals and microorganisms to reduce the concentration of pollutants to acceptable levels, or to convert toxic and harmful pollutants to harmless substances to reduce their diffusion to the surrounding environment.
Therefore, the physical repair technology is relatively simple, the effect is quick, but the effect is difficult to continue and only emergency treatment can be performed; the chemical remediation is short in duration, has effects, has large side effects, and is easy to influence the stability of an ecological system, so that the symptoms are treated and the root causes are not treated; the bioremediation technology utilized by plants has a long lasting period and low treatment efficiency.
Technical documents for performing composite processing on corresponding technologies appear in the prior art, such as: the patent application number 2016101964164 discloses a sewage treatment process and device beneficial to eliminating black and odorous water, which is formed by compounding a coagulation air flotation treatment process, a biological contact oxidation treatment process and an artificial wetland treatment process, so that black and odorous wastewater is treated; but lack the processing apparatus of suitable structure, cause the treatment cost still to teach, the treatment effect is still unsatisfactory, causes black smelly waste water treatment cycle long, especially is difficult to be adapted to the processing to black smelly waste water in river lake. For another example: the bioremediation system for treating black and odorous water body with the patent application number of 2017214135658 makes full use of the multiple treatments of the artificial wetland, so that the plants and the soil can adsorb and utilize the components in the black and odorous wastewater, the purification of the black and odorous wastewater is realized, and the sewage discharge standard is improved; but the single plant has longer utilization period and unsatisfactory treatment effect.
Based on this, in the practical work of long-term research on sewage purification treatment, the researchers use a composite process of mechanical coagulation, bed filtration and artificial wetland utilization to purify and decontaminate black and odorous water in rivers and lakes, and aiming at the process, a new device and a new process for purifying black and odorous sewage by the device are provided for the black and odorous wastewater treatment of technicians in the field.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a biological purification device and a method for treating black and odorous water in a river channel.
The method is realized by the following technical scheme:
a biological purification device for administering black and odorous water in river course includes:
the barrier unit is used for blocking the black and odorous water body flowing down from the upstream of the river channel, the barrier is composed of a baffle plate, rotating shafts arranged at two ends of the baffle plate, and barrier pieces capable of rotating 180 degrees around the rotating shafts, a plurality of through grooves are formed in the baffle plate and used for the black and odorous water body to flow through, and the baffle plate can intercept plankton in the black and odorous water body; the suspended matters and large and coarse particles are fully filtered and removed and enter a coagulation air floatation tank, so that the defect of insufficient leakage caused by pore blockage is avoided; the amount of the black and odorous water entering the device can be adjusted, and the black and odorous water is turned over by the baffle plate, so that the operation is convenient and simple;
the one side of the coagulation air flotation tank shares the baffle and is integrally connected with the side vertical to the baffle; a flocculating agent is added to enable the flocculating agent to be coagulated with the black and odorous water body, so that the removal of pollutants is improved; the flocculant is aluminum salt flocculant, such as aluminum sulfate, polyaluminium chloride, etc.
The top of the flow mixing unit is provided with a coagulation top plate, the coagulation top plate is shared with a bottom plate of the coagulation air floatation tank, and the coagulation top plate is integrally connected with each side surface of the coagulation air floatation tank; the liquid leakage part is arranged on the concrete top plate, and a plurality of through liquid leakage holes are formed in the liquid leakage part; the lower end of the concrete top plate is integrally provided with a vertical concrete part, and the bottom end of the vertical concrete part is connected with a horizontal concrete part through an arc-shaped bent part; an impulse stirring component is arranged in the arc-shaped bending part, and a mechanical stirring component is arranged in the horizontal coagulation part; the uniformity of mixing of the flocculating agent and the black and odorous water body is improved, the falling speed of the black and odorous water body can be reduced, the flow velocity is reduced at the arc-shaped bending part, the stirring and mixing of the mechanical stirring component at the horizontal coagulation part are guaranteed, the effect of the flocculating agent on the pollution components in the black and odorous water body is enhanced, and the purification capacity is improved;
the top of the biological purification unit is provided with a biological purification feeding pool, and the bottom of the biological purification feeding pool and the top of the biological purification unit are shared; the biological purification feeding tank comprises a feeding tank baffle and a feeding end plate with the height lower than that of the feeding tank baffle, the bottom of the horizontal coagulation part is tightly attached to the top of the feeding end plate, and the discharge end of the horizontal coagulation part is flush with the inner wall of the feeding end plate; the black and odorous water body can enter the biological purification unit, and secondary pollution caused by the fact that the black and odorous water body which is not purified by the biological purification unit is splashed out is avoided;
a biological purification cover plate is arranged on the bottom plate of the biological purification feeding tank and at a position corresponding to the top of the biological purification unit, a plurality of biological purification holes are formed in the biological purification cover plate, and the biological purification cover plate is detachably arranged; the cleaning and the re-filling treatment of the interior of the biological purification body are convenient, the continuous updating and the use of the device can be ensured, and the cost is reduced;
the biological purification unit also comprises a biological purification body from top to bottom, and a biological aeration unit which is integrally formed at the bottom of the biological purification body and is in a cone shape, the bottom end of the biological aeration unit is provided with a liquid discharge pipe, and the bottom end of the liquid discharge pipe is integrally formed with a scattering unit; the scattering unit comprises a scattering main pipe which is hollow inside, a plurality of scattering branch pipes are arranged on the scattering main pipe, and a plurality of scattering holes are arranged on the scattering branch pipes; the nutrient requirements of microorganisms attached in the filler filled in the biological purification bed layer are met, the dissolved oxygen in the biological purification unit can be increased, and the purification effect of the black and odorous water body is guaranteed; particularly, the water is sprayed in a scattering mode, so that the water is fully contacted and oxidized with air, and the aim of purification is fulfilled; meanwhile, the aeration chamber is used for ventilating and entering, so that the pressure in the aeration chamber is increased, the internal pressure is higher during sprinkling, the situation of sprinkling from sprinkling holes is realized, and the purification effect is improved;
the biological aeration unit is provided with two aeration pipes, an aeration chamber is formed in the biological aeration unit, the end part of the aeration pipe in the aeration chamber is connected with an aeration disc, and the bottom of the aeration disc is provided with a plurality of aeration holes; the aeration hole is seted up to aeration dish bottom, prevents that liquid from flowing into the aeration dish, influences the ability that gas got into in the aeration dish.
The collection of black and odorous water and the removal of suspended matters are realized through the enclosure unit; through adding flocculating agent mixing flocculation in coagulating air supporting pond again, through impulsive stirring subassembly, mechanical stirring subassembly effect, reinforcing mixing homogeneity, through biological purification unit internal filtration, biological purification bed biological action, aeration chamber oxidation purification, the unit dispersion that scatters, reinforcing oxygen contact rate improves black and odorous water purification efficiency, has improved the treatment effect of black and odorous water, simple structure, convenient operation.
The impulse stirring assembly is formed by arranging the bearings b on the front end wall and the rear end wall of the arc-shaped bent part, penetrating the bearings b and internally provided with the impulse stirring shaft in a through mode, and arranging the impulse stirring blades on the impulse stirring shaft, so that water can leak into the vertical coagulation part from the liquid leakage hole and then rotate.
The mechanical stirring component is composed of a bearing a arranged at the center of the top of the horizontal coagulation part, a mechanical motor shaft penetrating through the bearing a, and a mechanical stirring blade arranged on the mechanical motor shaft in the horizontal coagulation part; the upper part of the horizontal coagulation part is provided with a motor pillar, the motor pillar is provided with a stirring motor, and the output end of the stirring motor is connected with a mechanical motor shaft.
In the biological purification body, a supporting sieve plate with sieve pore diameter of 0.1-0.5cm is sequentially arranged from the top of the aeration chamber to the top, a biological purification bed layer with thickness of 30-80cm is arranged on the upper surface of the supporting sieve plate, and a ceramic filler layer with thickness of 10-30cm is arranged on the upper surface of the biological purification bed layer.
In order to realize secondary filtration of the discharged water body of the biological purification bed layer and avoid blockage of coarse particles entering the liquid discharge pipe, preferably, the bottom of the aeration chamber is detachably provided with a discharge sieve plate at the top of the liquid discharge pipe.
In order to facilitate disassembly, maintenance, replacement and installation, preferably, the scattering main pipe is provided with a connecting hole in the middle, and an internal thread is arranged in the connecting hole; and the liquid discharge pipe is provided with an external thread matched with the internal thread in the connecting hole.
In order to prevent the coarse ceramic particles from causing poor filtering effect and the fine ceramic particles from causing particle loss when water is flushed and influencing the service life of the device, the particle size of the ceramic filler layer is preferably 1-10 cm.
The biological purification bed layer is filled with filler, and the filler is porous filler attached with microorganisms. The porous filler having microorganisms adhered thereto can be obtained by referring to the related art documents in the prior art, for example, the related contents described in the river pollutant treating device of patent No. 201510035828.5.
The scattering unit is arranged on the upper surface of the artificial wetland, and can scatter water discharged by the biological purification unit to the artificial wetland, so that the plants are utilized.
Compared with the prior art, the invention has the technical effects that:
the device provided by the invention is simple in structure and convenient to operate, black and odorous water flowing from a river channel is collected through the enclosure unit, floating objects are filtered and discharged through the baffle plate and the through groove, a flocculating agent is added into the coagulation air flotation tank, stirring and mixing are carried out at different water flowing speeds through longitudinal and transverse stirring effects in the flowing and mixing unit, the uniformity of mixing of the flocculating agent and the water is guaranteed, a filler attached with microorganisms is filled into a ceramic filtering and biological purification bed layer, an aeration chamber is arranged at the bottom of the biological purification unit, the microbial growth requirement in the biological purification bed layer is guaranteed, meanwhile, the oxygen contact rate is improved, the oxidation efficiency is enhanced, and the purification effect of the black and odorous water is improved. Chemical flocculation, mechanical stirring, microbial purification and final scattering to the constructed wetland or river course natural purification are fully utilized for mutual combination, so that the treatment period is shortened, and the treatment effect on black and odorous wastewater is ensured.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the invention.
Fig. 2 is a schematic view of the overall structure of the flow mixing unit.
Fig. 3 is a schematic diagram of the overall structure of the biological purification unit.
Fig. 4 is a schematic sectional structure view of fig. 3.
Fig. 5 is a schematic view of the bottom structure of the aeration plate.
Fig. 6 is a schematic structural view of the scattering unit.
Fig. 7 is a schematic structural view of the impulse stirring assembly.
Fig. 8 is a schematic structural view of a mechanical agitation assembly.
1-enclosing baffle plate 2-rotating shaft 3-baffle plate 4-through groove 5-coagulation air flotation tank 6-flow mixing unit 7-biological purification feeding tank 8-coagulation support column a 9-support plate 10-coagulation support column b 11-fixing ring 12-biological purification unit 13-biological purification support column 14-aeration pipe 15-liquid discharge pipe 16-scattering main pipe 17-scattering pipe 18-scattering hole 19-connecting hole.
6.1-horizontal coagulation part 6.2-vertical coagulation part 6.3-motor support 6.4-bearing a 6.5-stirring motor 6.6-coagulation top plate 6.7-liquid leakage part 6.8-liquid leakage hole 6.9-bearing b 6.10-impulse stirring shaft 6.11-impulse stirring blade.
6.51-stirring motor shaft 6.52-mechanical stirring blade.
7.1-baffle of feeding pool 7.2-feeding end plate.
12.1-biological purification cover plate 12.2-biological purification hole 12.3-biological purification body 12.4-biological aeration unit 12.31-ceramic filler layer 12.32-biological purification bed layer 12.33-support sieve plate 12.41-aeration chamber 12.42-discharge sieve plate.
14.1-aeration disc 14.2-aeration hole 15.1-external screw thread.
Detailed Description
The technical solution of the present invention is further defined below with reference to the specific embodiments, but the scope of the claims is not limited to the description.
As shown in fig. 1 to 8, in this embodiment, the biological purification apparatus for treating black and odorous water in a river comprises:
the barrier unit is used for blocking black and odorous water flowing down from the upstream of a river channel, the barrier 3, the rotating shafts 2 arranged at two ends of the barrier 3 and the barrier pieces 1 capable of rotating 180 degrees around the rotating shafts 2 are arranged on the barrier 3, a plurality of through grooves 4 are formed in the barrier 3, the black and odorous water flows through the through grooves 4, and the barrier 3 can intercept suspended matters in the black and odorous water;
the coagulation air flotation tank 5 is characterized in that one side surface of the coagulation air flotation tank 5 shares the baffle 3 and is integrally connected with the side surface vertical to the baffle 3; a coagulation strut a8 and a coagulation strut b10 are arranged at the bottom of the coagulation air flotation tank 5;
the top of the flowing mixing unit 6 is provided with a coagulating top plate 6.6, the coagulating top plate 6.6 shares with the bottom plate of the coagulating air-floating tank 5, and the coagulating top plate 6.6 is integrally connected with each side surface of the coagulating air-floating tank 5; a liquid leakage part 6.7 is arranged on the concrete top plate 6.6, and a plurality of through liquid leakage holes 6.8 are arranged on the liquid leakage part 6.7; the lower end of the concrete top plate 6.6 is integrally provided with a vertical concrete part 6.2, and the bottom end of the vertical concrete part 6.2 is connected with a horizontal concrete part 6.1 through an arc-shaped bent part; an impulse stirring component is arranged in the arc-shaped bending part, and a mechanical stirring component is arranged in the horizontal coagulation part 6.1;
the biological purification unit 12, the top of the biological purification unit 12 is provided with a biological purification feed tank 7, and the bottom of the biological purification feed tank 7 is shared with the top of the biological purification unit 12; the biological purification feeding tank 7 comprises a feeding tank baffle 7.1 and a feeding end plate 7.2 with the height lower than that of the feeding tank baffle 7.1, the bottom of the horizontal coagulation part 6.1 is tightly attached to the top of the feeding end plate 7.2, and the discharge end of the horizontal coagulation part 6.1 is flush with the inner wall of the feeding end plate 7.2; a biological purification cover plate 12.1 is arranged on the bottom plate of the biological purification feeding pool 7 and at the corresponding position of the top of the biological purification unit 12, a plurality of biological purification holes 12.2 are arranged on the biological purification cover plate 12.1, and the biological purification cover plate 12.1 is detachably arranged; the biological purification unit 12 also comprises a biological purification body 12.3 and a biological aeration unit 12.4 which is integrally formed at the bottom of the biological purification body 12.3, wherein the biological aeration unit 12.4 is in a cone shape, the bottom end of the biological aeration unit 12.4 is provided with a liquid discharge pipe 15, and the bottom end of the liquid discharge pipe 15 is integrally formed with a scattering unit; the scattering unit comprises a scattering main pipe 16 which is hollow inside, a plurality of scattering branch pipes 17 are arranged on the scattering main pipe 16, and a plurality of scattering holes 18 are arranged on the scattering branch pipes 17; the biological aeration unit 12.4 is provided with two aeration pipes 14, an aeration chamber 12.41 is formed in the biological aeration unit 12.4, an aeration disc 14.1 is connected to the end part of the aeration pipe 14 positioned in the aeration chamber 12.41, and a plurality of aeration holes 14.2 are arranged at the bottom of the aeration disc 14.1. A biological purification body 12.3 of the biological purification unit 12 is provided with a fixed ring 11, the fixed ring 11 is provided with a plurality of connecting fixed rods, and the bottom of the biological purification feeding pool 7 is provided with four biological purification supporting columns 13; the connecting fixing rod is vertical to the biological purification support column 13 and is integrally connected to the biological purification support column 13; two biological purification pillars 13 near the end of the coagulation air flotation tank 5 are respectively connected with a coagulation pillar a8 and a coagulation pillar b10 through cross bars, a support plate 9 is erected on the cross bars respectively connected with the coagulation pillar a8 and the coagulation pillar b10, the upper surface of the support plate 9 is tightly attached to the lower surface of the horizontal coagulation part, and the lower surface of the support plate 9 is tightly attached to the cross bars; the stability of the whole device installed at the downstream of the river channel is enhanced; the normal operation of the device is guaranteed.
When the device is used for carrying out the biological purification treatment of the black and odorous water body, the enclosure unit is arranged in the flowing direction of the black and odorous water body, and the suspended matters are filtered by the enclosure of the enclosure unit, so that the black and odorous water is filtered into the coagulation air flotation tank 5 through the through slot 4, and the aluminum salt flocculating agent is added according to the concentration of 35-90mg/L, for example, polyaluminium chloride, and the like, and then flows into the vertical coagulation part 6.2 through the liquid leakage hole 6.8 on the liquid leakage part 6.7, under the action of the impact force of the inflow of the black and odorous water body, the impulsive stirring assembly is driven to rotate, the black and odorous water body is stirred and mixed transversely through the mechanical stirring assembly, the aluminum salt flocculating agent is uniformly mixed with the black and odorous water body, and then the black and odorous water body is sent into the biological purification feeding tank 7, flows into the biological purification body 12.3 from the biological purification hole 12.2, sequentially passes through the ceramic filler layer 12.31 and the biological purification bed layer 12.32, and the combination of filtration and biological purification is realized; air is introduced into the aeration chamber 12.41 and then is scattered by the scattering unit, so that the contact rate with the air is improved, oxidation purification during scattering is realized, and the sewage falls back to the artificial wetland or the river channel for natural purification and discharge.
The biological purification column 13 is fixed to an artificial wetland base, and a plurality of plants such as reed and calamus are planted on the artificial wetland base.
The impulse stirring assembly is composed of bearings b6.9 arranged on the front end wall and the rear end wall of the arc-shaped bent portion, an impulse stirring shaft 6.10 penetrating through the bearings b6.9 and an impulse stirring blade 6.11 arranged on the impulse stirring shaft 6.10, and can rotate after water leaks into the vertical coagulation portion 6.2 from the liquid leakage hole 6.8.
The mechanical stirring component is composed of a bearing a6.4 arranged at the top center of the horizontal coagulation part 6.1, a mechanical motor shaft 6.51 passing through the bearing a6.4, and a mechanical stirring blade 6.52 arranged on the mechanical motor shaft 6.51 positioned in the horizontal coagulation part 6.1; the upper part of the horizontal coagulation part 6.1 is provided with a motor support 6.3, the motor support 6.3 is provided with a stirring motor 6.5, and the output end of the stirring motor 6.5 is connected with a mechanical motor shaft 6.51. In the biological purification body 12.3, a support sieve plate 12.33 with a sieve pore diameter of 0.1-0.5mm is sequentially arranged from the top of an aeration chamber 12.41 to the top, a biological purification bed layer 12.32 with a thickness of 30-80cm is arranged on the upper surface of the support sieve plate 12.33 in a clinging manner, the biological purification bed layer 12.32 is filled with a filler, the filler is a porous filler attached with microorganisms (the porous filler attached with the microorganisms can be realized by referring to related technical documents in the prior art, for example, the related content introduced in a riverway pollutant treatment device with the patent number of 201510035828.5), and a ceramic filler layer 12.31 with a particle size of 10-30cm (the particle size is 1-10cm) is arranged on the upper surface of the biological purification bed layer 12.32 in a clinging manner.
In other modified embodiments, in order to realize the secondary filtration, reduce the content of particulate matters in the water discharged from the scattering unit and avoid blocking the pipeline of the scattering unit, the bottom of the aeration chamber 12.41 is provided with a discharge sieve plate 12.42 at the top of the liquid discharge pipe 15. And secondary filtering with a sieve plate with a diameter of 0.05-0.08cm before liquid is discharged from the liquid discharge pipe.
In other improved embodiments, in order to facilitate the disassembly of the scattering unit for replacement and maintenance, a connecting hole 19 is formed in the middle of the scattering main pipe 16, and internal threads are formed in the connecting hole 19; and the liquid discharge pipe 15 is provided with an external thread 15.1 matched with the internal thread in the connecting hole 19. Through threaded connection, realized dismantling the connection, ensured the stability of connecting moreover.
The scattering unit is arranged on the upper surface of the artificial wetland, and can scatter the water discharged by the biological purification unit 12 to the artificial wetland, so that the plants can be utilized.
The present invention may be realized in the light of the prior art, and terms described in the present invention, such as front, back, inner, outer, etc., are described with reference to the accompanying drawings. The aeration pipe 14 is connected with a blower (for example, model: RBG2100D4B, power: 0.4kw, noise: 56dB), the blower can continuously blow air into the biological purification unit 12, the air pressure balance in the biological purification unit and the oxygen requirement for microorganism growth are ensured, the purification capacity is enhanced, the pressure in the aeration chamber is increased, the pressure of water in the liquid discharge pipe 15 is convenient to be relatively large, and the purpose of scattered discharge is achieved. The motor used is a conventional motor product, for example an electric motor of type YE2-180L, rated for 22 kW.
In addition, this researcher has still utilized the device to carry out the experiment of river course black and odorous water body treatment effect, the treatment method is to enclose the black and odorous water body of river course through enclosing the fender unit and filter into coagulating air supporting pond, add 75mg aluminium polychlorid flocculating agent according to per liter, make the flocculating agent enter into the mixing unit that flows along with black and odorous waste water flow, realize the stirring and mix, biological purification handles in the reentrant biological purification processing unit, scatter the river course through scattering the unit at last, constructed wetland surface, realize natural purification, and through carrying out water quality testing to the black and odorous water body that encloses the fender and collect, and water collection after the device handles, and water quality testing, its result is shown in following table 1:
test 1: the results obtained were directly processed using the apparatus shown in the above example;
test 2: when the ceramic filler layer is filled with ceramic by using the device shown in the above example, activated carbon particles accounting for 10% of the mass of the ceramic filler are added, the average particle size of the particles is about 3cm, and the black and odorous wastewater is treated.
Test site: at the pipeline port of XX urban sewage collection and discharge in Shaanxi province, the main components of the black and odorous water body discharged from the pipeline port are components compounded by canteen wastewater, bathing wastewater, toilet wastewater and the like.
Table 1: water quality analysis report before and after XX urban sewage treatment in Shaanxi province
The data in table 1 show that the device provided by the invention can purify black and odorous wastewater, and can greatly reduce odor and harmful components in black and odorous water, so that the treated water can completely satisfy the irrigation on plants in the artificial wetland, the purpose of supplementing water to the artificial lake landscape is realized, water resources are fully utilized, the discharge of black and odorous water is reduced, and pollution is reduced. And through experiments, the activated carbon particles are added into the ceramic particles, which is helpful for enhancing the purification effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. The utility model provides a biological purification device for administering black and odorous water body in river course which characterized in that includes:
the barrier unit is used for blocking black and odorous water flowing down from the upstream of a river channel, the barrier (3), the rotating shafts (2) arranged at two ends of the barrier (3) and the barrier pieces (1) capable of rotating 180 degrees around the rotating shafts (2) are arranged on the barrier (3), the barrier (3) is provided with a plurality of through grooves (4), the black and odorous water flows through the through grooves (4), and the barrier (3) can intercept suspended matters in the black and odorous water;
the coagulation air floatation tank (5), one side surface of the coagulation air floatation tank (5) shares the baffle (3), and is integrally formed and connected with the side surface vertical to the baffle (3);
the top of the flowing mixing unit (6) is provided with a coagulation top plate (6.6), the coagulation top plate (6.6) is shared with the bottom plate of the coagulation air floatation tank (5), and the coagulation top plate (6.6) is integrally connected with each side surface of the coagulation air floatation tank (5); a liquid leakage part (6.7) is arranged on the concrete top plate (6.6), and a plurality of through liquid leakage holes (6.8) are arranged on the liquid leakage part (6.7); the lower end of the concrete top plate (6.6) is integrally provided with a vertical concrete part (6.2), and the bottom end of the vertical concrete part (6.2) is connected with a horizontal concrete part (6.1) through an arc-shaped bending part; an impulse stirring component is arranged in the arc-shaped bending part, and a mechanical stirring component is arranged in the horizontal coagulation part (6.1);
the biological purification unit (12), the top of the biological purification unit (12) is provided with a biological purification feed pool (7), and the bottom of the biological purification feed pool (7) is shared with the top of the biological purification unit (12); the biological purification feeding tank (7) comprises a feeding tank baffle (7.1) and a feeding end plate (7.2) with the height lower than that of the feeding tank baffle (7.1), the bottom of the horizontal coagulation part (6.1) is tightly attached to the top of the feeding end plate (7.2), and the discharge end of the horizontal coagulation part (6.1) is flush with the inner wall of the feeding end plate (7.2); a biological purification cover plate (12.1) is arranged on a bottom plate of the biological purification feeding pool (7) and is positioned at a corresponding position on the top of the biological purification unit (12), a plurality of biological purification holes (12.2) are arranged on the biological purification cover plate (12.1), and the biological purification cover plate (12.1) is detachably arranged; the biological purification unit (12) also comprises a biological purification body (12.3) from top to bottom, a biological aeration unit (12.4) which is integrally formed at the bottom of the biological purification body (12.3), the biological aeration unit (12.4) is in a cone shape, a liquid discharge pipe (15) is arranged at the bottom end of the biological aeration unit (12.4), and a scattering unit is integrally formed at the bottom end of the liquid discharge pipe (15); the scattering unit comprises a scattering main pipe (16) which is hollow inside, a plurality of scattering branch pipes (17) are arranged on the scattering main pipe (16), and a plurality of scattering holes (18) are arranged on the scattering branch pipes (17); two aeration pipes (14) are arranged on the biological aeration unit (12.4), an aeration chamber (12.41) is formed in the biological aeration unit (12.4), an aeration disc (14.1) is connected to the end part of the aeration pipe (14) positioned in the aeration chamber (12.41), and a plurality of aeration holes (14.2) are arranged at the bottom of the aeration disc (14.1);
the impulse stirring assembly is formed by arranging bearings b (6.9) on the front end wall and the rear end wall of the arc-shaped bent part, arranging an impulse stirring shaft (6.10) in the bearings b (6.9) in a through mode, and arranging impulse stirring blades (6.11) on the impulse stirring shaft (6.10), and can rotate after water leaks into the vertical coagulation part (6.2) from the liquid leakage hole (6.8);
the mechanical stirring component is composed of a bearing a (6.4) arranged at the top center of the horizontal coagulation part (6.1), a mechanical motor shaft (6.51) is arranged by penetrating through the bearing a (6.4), and a mechanical stirring blade (6.52) is arranged on the mechanical motor shaft (6.51) positioned in the horizontal coagulation part (6.1); a motor support (6.3) is arranged at the upper part of the horizontal coagulation part (6.1), a stirring motor (6.5) is arranged on the motor support (6.3), and the output end of the stirring motor (6.5) is connected with a mechanical motor shaft (6.51);
a discharging sieve plate (12.42) is arranged at the bottom of the aeration chamber (12.41) and positioned at the top of the liquid discharge pipe (15);
in the biological purification body (12.3), a supporting sieve plate (12.33) with the sieve pore diameter of 0.1-0.5mm is sequentially arranged from the top of the aeration chamber (12.41) to the top, a biological purification bed layer (12.32) with the thickness of 30-80cm is arranged on the upper surface close to the supporting sieve plate (12.33), and a ceramic filler layer (12.31) with the thickness of 10-30cm is arranged on the upper surface close to the biological purification bed layer (12.32);
a connecting hole (19) is formed in the middle of the sprinkling main pipe (16), and an internal thread is formed in the connecting hole (19); the liquid discharge pipe (15) is provided with an external thread (15.1) matched with the internal thread in the connecting hole (19);
the grain diameter of the ceramic filler layer (12.31) is 1-10 cm;
the biological purification bed layer (12.32) is filled with filler, and the filler is porous filler attached with microorganisms;
the scattering unit is arranged on the upper surface of the artificial wetland, and can scatter the water discharged by the treatment of the biological purification unit (12) to the artificial wetland, so that the utilization of plants is realized.
2. A biological purification method for treating black and odorous water in a river channel is characterized in that the device according to claim 1 is utilized, the enclosure unit is installed in the flowing direction of the black and odorous water, suspended matters are enclosed and filtered by the enclosure unit, the black and odorous water is filtered into the coagulation air flotation tank (5) through the through groove (4), aluminum salt flocculating agents are added according to 35-90mg/L, then the black and odorous water flows into the vertical coagulation part (6.2) through the leakage holes (6.8) in the leakage part (6.7), under the impact force of the flowing-in of the black and odorous water, the flushing stirring component is driven to rotate, the stirring and mixing of the black and odorous water are realized, the aluminum salt flocculating agents and the black and odorous water are uniformly mixed through the transverse stirring of the mechanical stirring component, the mixture is conveyed into the biological purification feeding tank (7), and then the mixture flows into the biological purification body (12.3) from the biological purification holes (12.2), the filtering and biological purification are combined under the action of a biological purification bed layer (12.32) and a ceramic filler layer (12.31) in sequence; then air is introduced into the aeration chamber (12.41) and then is scattered by the scattering unit, so that the contact rate with the air is improved, oxidation purification during scattering is realized, and the sewage falls back to the artificial wetland or the river channel for natural purification and discharge.
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| US5645726A (en) * | 1996-03-14 | 1997-07-08 | Deep Shaft Technology Inc. | Treatment of waste liquor in a vertical shaft bioreactor |
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| GB2195624B (en) * | 1986-08-14 | 1990-08-15 | Jensen G H Ltd | Sewage treatment plant |
| CN101293722B (en) * | 2008-06-20 | 2010-09-29 | 云南天兰环保科技开发有限公司 | Municipal sewage treatment system and equipment built on river |
| CN101775789A (en) * | 2010-02-08 | 2010-07-14 | 北京林业大学 | Method for river course slope protection by using composite stream constructed wetlands |
| WO2013132608A1 (en) * | 2012-03-07 | 2013-09-12 | 日本アルシー株式会社 | Microbial reaction tank and wastewater treatment method |
| CN105645675B (en) * | 2016-01-06 | 2019-04-02 | 中国环境科学研究院 | A kind of smelly water bodies of rivers and lakes water quality high-efficient purification technology of urban black |
| CN109179909B (en) * | 2018-10-30 | 2020-06-30 | 华北水利水电大学 | Integrated sewage treatment device and treatment method |
| CN110104762A (en) * | 2019-05-22 | 2019-08-09 | 江苏中百洲环境科技有限公司 | A kind of floatation type sewage water treatment method |
| CN110117063A (en) * | 2019-05-22 | 2019-08-13 | 江苏中百洲环境科技有限公司 | A kind of floatation type sewage-treatment plant |
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| US5645726A (en) * | 1996-03-14 | 1997-07-08 | Deep Shaft Technology Inc. | Treatment of waste liquor in a vertical shaft bioreactor |
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