CN214141749U - Ground round maintenance-free biological oxidation filter tank - Google Patents
Ground round maintenance-free biological oxidation filter tank Download PDFInfo
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- CN214141749U CN214141749U CN202022910439.1U CN202022910439U CN214141749U CN 214141749 U CN214141749 U CN 214141749U CN 202022910439 U CN202022910439 U CN 202022910439U CN 214141749 U CN214141749 U CN 214141749U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model relates to an overground circular maintenance-free biological oxidation filter tank, which comprises a filter tank body, wherein the filter tank body is divided into five layers from top to bottom, namely an odor collecting layer, a water distribution layer, a filter material layer, a ventilation layer and a water collecting layer; the filter tank body is a semi-closed accommodating cavity, the top of the filter tank body is provided with a movable sealing cover, and the lower part of the filter tank body is provided with a ventilation opening; the upper part of the sealing cover is provided with a water inlet pipe and an odor collecting pipe. The sewage is uniformly distributed to the filter material through the water distribution layer. The utility model discloses a natural draft combines together with mechanical draft, ventilates simultaneously through negative pressure suction foul smell, carries out biological treatment to it. The utility model discloses but the modularization production combines according to water yield, quality of water, play water standard and other conditions, and the modern design, rational in infrastructure, area is little, and non-maintaining, greatly reduced operation maintenance work load suits to use widely in distributed sewage concentrates recovery processing.
Description
Technical Field
The utility model relates to a sewage biological treatment equipment technical field, concretely relates to circular non-maintaining biological oxidation of ground formula crosses filter tank.
Background
With the development of economy, people pay more attention to environmental problems, and the problem of water pollution is one of the main problems of environmental pollution. The existing urban sewage treatment facilities need to be modified according to local conditions so as to meet the corresponding discharge standard or the recycling requirement, and distributed sewage needs to be collected by households and treated and utilized in a centralized manner.
Compared with centralized treatment, the distributed wastewater treatment system can be applied to areas with small relative flow, such as rural remote areas, and has the advantages of simple installation, low operation and maintenance cost, and the like. Meanwhile, the distributed sewage treatment system has the problems of difficulty in uniform collection, multiple points, wide range, great management difficulty and the like.
In sewage treatment processes, microbiological degradation techniques are commonly used to treat organic matter in sewage. The common biological filter process is based on the principle of soil self-purification, and has been developed for over a hundred years through an artificial biological treatment technology developed by an original intermittent sand filter and a contact oxidation pond. The BOD removal rate can reach 90-95%, the operation is stable, but the defects are that the occupied area is large, the blockage is easy, the filter flies are easy to generate, the environmental sanitation is deteriorated, and the use is limited. Therefore, aiming at the problems, the biological filter tank equipment suitable for distributed sewage treatment is provided, the defects of the traditional biological filter tank are overcome, good environmental benefits are realized, and meanwhile, a large amount of capital construction cost and operation and maintenance cost are saved.
SUMMERY OF THE UTILITY MODEL
The utility model provides an overground circular non-maintaining biological oxidation filter tank, its aim at solve domestic sewage treatment's ordinary filtering pond area big, easily block up, easily deteriorate sanitation, receive technical problem such as restriction, maintenance cost height on using.
The technical scheme of the utility model is realized like this:
an overground circular maintenance-free biological oxidation filter tank comprises a filter tank body and is characterized in that the filter tank body is internally divided into five layers, namely an odor collecting layer, a water distribution layer, a filter material layer, a ventilation layer and a water collecting layer from top to bottom; the filter tank body is a closed accommodating cavity, the top of the filter tank body is provided with a movable sealing cover, and the lower part of the filter tank body is provided with a vent; the upper part of the sealing cover is provided with a water inlet pipe and an odor collecting pipe;
the odor collection layer is composed of the odor collection pipe arranged in the middle of the top of the sealing cover, the odor collection pipe is communicated with the sealing space inside the sealing cover, and the odor collection pipe is externally connected with an air exhaust fan;
the water distribution layer is arranged at the upper part in the filter tank body, water distribution pipes are arranged at intervals from top to bottom, water distribution grates extend to the periphery of the tank wall and are connected, a plurality of main pipes which are parallel to and arranged in rows are communicated with the main pipes which are vertically arranged in the middle, the main pipes are communicated with the vertically arranged water inlet pipes, water holes are formed in the left and right of the water distribution pipes along the direction of 45 degrees of the axis, the water holes are staggered, the diameter of each water hole is not more than 5mm, and the hole distance is 50 mm; the water distribution grate is uniformly provided with small holes with the diameter of 3mm, and the opening rate is 1-2%; a plurality of vent holes with the diameter of 100mm are arranged on the water distribution grate;
the filter material layer comprises a working layer and a supporting layer from top to bottom in sequence, the working layer is 1.8m high, the filter material of the working layer is made of plastic products with the particle size of 25-40mm, the plastic products are made of anti-aging materials, and the specific surface area is 100 square meters per m3The porosity is 80-90%; the thickness of the bearing layer is 0.2m, the filter material of the bearing layer is cobblestone, and the particle size is 60-100 mm;
the ventilation layer is positioned below the filter material layer, and at least 5 vent holes of 400mmx200mm are uniformly distributed on the periphery of the tank wall of the filter tank body at a distance of 200 mm;
the water collecting layer is located below the ventilation layer and is an inclined wall with the gradient of 2% arranged on the bottom wall of the tank body of the filter tank body, a water outlet is arranged at the lower end of the inclined wall and connected with a water outlet pipe 8, and the water outlet pipe 8 is connected to the side wall of the tank body.
The whole filter tank body is arranged on a concrete foundation with the thickness of 300mm, and the inclined wall is the upper end face of the concrete foundation.
Preferably, the plastic product is a porous suspension ball filler.
Preferably, the sealing cover is of a hemispherical structure.
The utility model discloses following beneficial effect has:
1) the micro-power deodorization and natural ventilation greatly reduce energy consumption, can achieve the dual purposes of deodorization and ventilation, and has convenient operation, basic maintenance-free and simple operation.
2) The equipment has compact structure and small occupied area, can be directly used by being arranged on the ground, is convenient and quick to install on site, and has short construction period; the service life is long.
3) Can carry out the modularization production according to different quality of water, different water yield types, be fit for using widely in distributed sewage concentrates recovery processing.
4) The water distribution grate is added, so that water distribution is more uniform, and the sewage treatment effect of the biological treatment filter layer is better.
Drawings
FIG. 1 is a schematic sectional view of the structure of the present invention,
figure 2 is a top view of figure 1,
FIG. 3 is a plane layout view of a water distribution grate,
figure 4 is a plane layout view of a water distribution pipe,
FIG. 5 is a water hole layout diagram of a water distribution pipe
Description of reference numerals:
1-water inlet pipe, 2-odor collecting layer, 2.1-odor collecting pipe, 3-sealing cover, 4-water distributing layer, 4.1-water distributing pipe, 4.2-water distributing grate, 5-filtering material layer, 5.1-manhole, 5.2-bearing layer, 5.3-working layer, 6-ventilating layer, 6.1-ventilating hole, 7-water collecting layer, 8-water outlet pipe, 9-concrete foundation and 10-filtering tank body,
Detailed Description
Referring to fig. 1, the utility model discloses an above-ground circular maintenance-free biological oxidation filter tank, which comprises a filter tank body 10, wherein the filter tank body is divided into five layers from top to bottom, namely an odor collecting layer 2, a water distribution layer 4, a filter material layer 5, a ventilation layer 6 and a water collecting layer 7; the filtering tank body is a closed accommodating cavity, the top of the filtering tank body is provided with a movable sealing cover 3 which can be opened and closed, the sealing cover is in a hemispherical design and is beneficial to collecting and pumping out odor, and the lower part of the filtering tank body is provided with a ventilation opening 6.1; the upper part of the sealing cover is provided with a water inlet pipe 1 and an odor collecting pipe 2.1;
as shown in fig. 2, the odor collection layer 2 is composed of the odor collection pipe 2.1 arranged in the middle of the top of the sealing cover, the odor collection pipe is communicated with the sealing space inside the sealing cover, and the outside of the odor collection pipe is connected with an air exhaust fan; collecting odor to the top of the sealing cover and pumping out;
the water distribution layer 4 is arranged at the upper part in the filter tank body, water distribution pipes 4.1 are arranged at intervals from top to bottom, a water distribution grate 4.2 extends to the periphery of the tank wall and is connected, as shown in figures 3 and 4, a plurality of water distribution pipes are arranged in parallel and in rows and are communicated with a main pipe vertically arranged in the middle, the main pipe is communicated with the vertically arranged water inlet pipe 1, left and right water boiling holes are arranged on the water distribution pipes along the direction of 45 degrees of the axis, as shown in figure 5, water holes are arranged in a staggered mode, the diameter of each water hole is 5mm, and the hole distance is 50 mm; the water distribution grate is uniformly provided with small holes with the diameter of 3mm, and the opening rate is 1-2%; 5-7 vent holes with the diameter of 100mm are arranged on the water distribution grate, and the vent holes on the water distribution grate are favorable for further pumping out odor in sewage of the filter material layer; the double-layer water distribution enables the water distribution to be more uniformly dispersed, so that water is uniformly sprayed to each corner on the filter material layer, the utilization rate of the filter material layer is higher, and the sewage filtering effect is better; particularly, the water holes of the upper layer and the lower layer are from big to small, the sewage is atomized, the contact area of the sewage and the filter material layer is further increased, and the filtering effect of the biological filter material is improved.
The filter material layer 5 comprises a working layer 5.3 and a supporting layer 5.2 from top to bottom in sequence, the working layer is 1.8m high, the filter material of the working layer is made of plastic products with the particle size of 25-40mm, the plastic products are made of anti-aging materials, and the specific surface area is 100 square meters per m3The porosity is 80-90%; the thickness of the bearing layer is 0.2m, the filter material of the bearing layer is cobblestone, and the particle size is 60-100 mm;
the ventilation layer 6 is positioned below the filter material layer, and at least 5 ventilation holes 6.1 of 400mmx200mm are uniformly distributed around the wall of the filter tank body at a distance of 200 mm; the air entering the air vents accelerates the biological treatment process of the filter material layer.
The water collecting layer 7 is located below the ventilation layer and is an inclined wall with the gradient of 2% arranged on the bottom wall of the filter tank body, a water outlet is arranged at the lower end of the inclined wall and connected with a water outlet pipe 8, and the water outlet pipe 8 is connected to the side wall of the tank body. The sewage treated by the filter material layer meets the use standard and can be directly discharged.
The whole filter tank body 10 is arranged on a concrete foundation 9 with the thickness of 300mm, and the inclined wall is the upper end face of the concrete foundation.
Preferably, the plastic product is a commercially available porous suspension ball filler.
The present invention will be further described with reference to the accompanying drawings
The filter tank body is a closed accommodating cavity and is made of 10mmQ235A steel. The upper closing cover can be taken down integrally, and the whole tank body is arranged on a concrete foundation with the thickness of 300 mm. The upper part of the tank body is provided with a water inlet pipe DN100 and an odor collecting pipe DN 200. The water distribution layer consists of a water distribution pipe and a water distribution grate. Compared with the prior art, the filter material distributor only adopts the water distribution pipes to distribute water, the water distribution grate can relieve the condition of uneven water distribution caused by water quantity fluctuation, sewage is uniformly spread on the surface of the filter material, and the quality of outlet water is stable. The whole height of the filtering layer is 2m, and the filtering layer is divided into a working layer and a supporting layer. The working layer is 1.8m high, the particle size is 25-40mm, the filter material is plastic product, the plastic product is anti-aging material, the specific surface area is 100 plus 200 square meters per m3And the porosity is 80-90%. The thickness of the bearing layer is 0.2m, cobblestones with the particle size of 60-100mm are selected. Ventilating floor is all5 vent holes of 400mmx200mm are uniformly arranged at a distance of 200 mm. The jar body below is the water-collecting layer of slope 2%, and outlet pipe DN100 connects at jar body right side wall.
When the utility model is used, domestic sewage enters the tank body from the water inlet pipe 1, and is uniformly distributed on the filter material layer 5 from top to bottom through the water distribution pipe 4.1 and the water distribution grate 4.2. The surface of the filtering material is a part formed and fixed by the biological membrane, so that the filtering material is made of a plastic material with the properties of hardness, high strength, corrosion resistance and freezing resistance. The filter material layer 5 decomposes organic matters in the sewage, the surface area of the filter material is a necessary condition for keeping high biomass, and the specific surface area is 100-3. The space among the filter materials is a contact part of three phases of biological membranes, sewage and air, and the porosity is kept between 80 and 90 percent, so that the oxygen transfer is ensured to be smooth. After the filter tank operates for a period of time, the blockage degree of the filter material is observed through the access hole 5.1, the filter material is directly replaced, back washing is not needed, and the operation is convenient. Ventilation layer 6 sets up 5 ventilation holes 6.1, utilizes natural draft to internal oxygen of carrying of jar, practices thrift the energy consumption. The ventilation area reaches 12 percent of the surface area of the filter tank, and sufficient oxygen supply is ensured. The sealing cover 3 is arranged to keep good environmental sanitation and prevent odor from overflowing. This equipment adopts natural draft to combine together with mechanical draft, and the foul smell collecting pipe 2.1 other end links to each other with air exhaust fan, ventilates simultaneously through the negative pressure suction foul smell, carries out biological treatment to it after collecting through foul smell collecting pipe 2.1. The sewage flows into the water collecting layer 7 after being decomposed and filtered by the filtering layer 5, and is collected to the water outlet pipe 8 along the gradient of 2 percent and then is discharged outside.
Claims (3)
1. An overground circular maintenance-free biological oxidation filter tank comprises a filter tank body and is characterized in that the filter tank body is internally divided into five layers, namely an odor collecting layer, a water distribution layer, a filter material layer, a ventilation layer and a water collecting layer from top to bottom; the filter tank body is a closed accommodating cavity, the top of the filter tank body is provided with a movable sealing cover, and the lower part of the filter tank body is provided with a vent; the upper part of the sealing cover is provided with a water inlet pipe and an odor collecting pipe;
the odor collection layer is composed of the odor collection pipe arranged in the middle of the top of the sealing cover, the odor collection pipe is communicated with the sealing space inside the sealing cover, and the odor collection pipe is externally connected with an air exhaust fan;
the water distribution layer is arranged at the upper part in the filter tank body, water distribution pipes are arranged at intervals from top to bottom, water distribution grates extend to the periphery of the tank wall and are connected, a plurality of main pipes which are parallel to and arranged in rows are communicated with the main pipes which are vertically arranged in the middle, the main pipes are communicated with the vertically arranged water inlet pipes, water holes are formed in the left and right of the water distribution pipes along the direction of 45 degrees of the axis, the water holes are staggered, the diameter of each water hole is not more than 5mm, and the hole distance is 50 mm; the water distribution grate is uniformly provided with small holes with the diameter of 3mm, and the opening rate is 1-2%; a plurality of vent holes with the diameter of 100mm are arranged on the water distribution grate;
the filter material layer sequentially comprises a working layer and a supporting layer from top to bottom, the working layer is 1.8m high, the filter material of the working layer is a plastic product with the particle size of 25-40mm, the plastic product is made of an anti-aging material, the specific surface area is 100 square meters/m, and the porosity is 80-90%; the thickness of the bearing layer is 0.2m, the filter material of the bearing layer is cobblestone, and the particle size is 60-100 mm;
the ventilation layer is positioned below the filter material layer, and at least 5 vent holes of 400mmx200mm are uniformly distributed on the periphery of the tank wall of the filter tank body at a distance of 200 mm;
the water collecting layer is positioned below the ventilation layer, the bottom wall of the tank body of the filter tank body is set to be an inclined wall with the gradient of 2%, the lower end of the inclined wall is provided with a water outlet connected with a water outlet pipe (8), and the water outlet pipe (8) is connected to the side wall of the tank body;
the whole filter tank body is arranged on a concrete foundation with the thickness of 300mm, and the inclined wall is the upper end face of the concrete foundation.
2. The above-ground round maintenance-free biological oxidation filtration tank of claim 1, wherein the plastic product is a porous suspension ball filler.
3. The above-ground round maintenance-free biological oxidation filtration tank of claim 1, wherein the sealing cover is of a hemispherical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022910439.1U CN214141749U (en) | 2020-12-07 | 2020-12-07 | Ground round maintenance-free biological oxidation filter tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022910439.1U CN214141749U (en) | 2020-12-07 | 2020-12-07 | Ground round maintenance-free biological oxidation filter tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214141749U true CN214141749U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022910439.1U Active CN214141749U (en) | 2020-12-07 | 2020-12-07 | Ground round maintenance-free biological oxidation filter tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214141749U (en) |
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2020
- 2020-12-07 CN CN202022910439.1U patent/CN214141749U/en active Active
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