CN220867221U - Distributed sewage treatment device - Google Patents
Distributed sewage treatment device Download PDFInfo
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- CN220867221U CN220867221U CN202322406002.8U CN202322406002U CN220867221U CN 220867221 U CN220867221 U CN 220867221U CN 202322406002 U CN202322406002 U CN 202322406002U CN 220867221 U CN220867221 U CN 220867221U
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- sedimentation
- air inlet
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- 239000010865 sewage Substances 0.000 title claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000004062 sedimentation Methods 0.000 claims abstract description 66
- 239000003814 drug Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000005273 aeration Methods 0.000 claims abstract description 25
- 230000001112 coagulating effect Effects 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000011010 flushing procedure Methods 0.000 claims abstract description 17
- 239000006228 supernatant Substances 0.000 claims abstract description 12
- 239000010802 sludge Substances 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 4
- 239000003830 anthracite Substances 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 abstract description 12
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 11
- 239000000945 filler Substances 0.000 description 8
- 238000005842 biochemical reaction Methods 0.000 description 4
- 239000000701 coagulant Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses a distributed sewage treatment device, which belongs to the technical field of sewage treatment, and comprises a coagulating sedimentation device, a dosing device, an intermediate water tank, a lifting pump, a multi-medium filter and the like, wherein: the coagulating sedimentation device consists of a medicine mixing tank and a sedimentation tank which are communicated with each other, the supernatant of the coagulating sedimentation device flows into a middle water tank through an overflow weir, and the supernatant is conveyed to a multi-medium filter through a lifting pump and a sewage pipe after the middle water tank is subjected to secondary sedimentation. Compared with the prior art, the device can treat various sewage at different environmental temperatures by adjusting the dosage, the stirring period, the sedimentation time, the aeration time and the like, and solves the problems of unstable system operation, low standard reaching rate and the like. In addition, the back flushing device arranged in the device can achieve the purpose of back flushing the filter material through air pressure impact, the filter material is driven to do a large-scale circulating motion in the back flushing device, the normal operation of the equipment is not affected in the back flushing process, and the continuous and reliable operation of the equipment can be ensured.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, and particularly relates to a distributed sewage treatment device.
Background
With the development of town, the daily water consumption of villages and towns is increased year by year, and how to increase the sewage treatment force of villages and towns and the sewage treatment rate of villages and towns becomes a key technical problem in the field. At present, a dispersed sewage treatment technology taking a purifying tank as a key unit is developed in Japan aiming at a single household which cannot be covered by a drainage pipe network, and a good application effect is achieved in the aspect of village sewage treatment.
For example: a distributed integrated sewage treatment device (CN 107694179A) is disclosed, which solves the problem that impurities accumulated on a filter plate cannot be removed by the existing sewage treatment device. For another example: an integrated decentralized rural domestic sewage treatment device (CN 109020045A) discloses an integrated decentralized rural domestic sewage treatment device which has small occupied area, high treatment efficiency, effluent COD lower than 50mg/L, good nitrification effect, low effluent turbidity, convenient operation management, small influence of seasonal change on the effluent effect, low investment cost and landscaping effect.
The prior art scheme has positive significance, but still has the following technical defects:
1) The existing equipment lacks a coagulating sedimentation device and a multi-medium filter, has weak adaptability, is difficult to adjust aeration quantity, coagulating drug quantity, coagulating stirring speed and the like, and often causes the problems of unstable system operation, low standard rate and the like when the external temperature, sewage quality and sewage quantity change.
2) The existing equipment lacks a back flushing device, or the back flushing device needs to pause the equipment when flushing filter materials and biological fillers, so that sewage treatment and filter material flushing cannot be performed simultaneously. In addition, most of the filter materials and biological fillers in the interior are in a static state, and even if part of the equipment is provided with a filter material and filler stirring system, the stirring amplitude or stirring effect is poor in actual work, and the filter materials and fillers in the interior and the exterior cannot realize effective circulating movement, so that the filtering effect and the service life of the filter materials in the interior and the exterior are inconsistent.
How to design a distributed sewage treatment device to effectively solve the problems becomes a technical problem in the technical field.
Disclosure of utility model
Aiming at the technical problems, the utility model provides a distributed sewage treatment device which can treat various sewage at different environmental temperatures by adjusting the dosage, the stirring period, the sedimentation time, the aeration time and the like, and solves the problems of unstable system operation, low standard reaching rate and the like.
The utility model solves the problems by the following technical means:
The utility model provides a dispersion sewage treatment plant which characterized in that includes coagulating sedimentation device, dosing device, middle pond, elevator pump, multi-media filter and air-blower, wherein: the coagulating sedimentation device consists of a medicine mixing tank and a sedimentation tank which are communicated with each other; the top of the medicine mixing tank is provided with a water inlet and a medicine inlet, the water inlet is connected with sewage to be treated through a sewage pipe and a water inlet pump, the medicine inlet is connected with a medicine adding device through a medicine adding pipe and a medicine adding pump, the inside of the medicine mixing tank is provided with a stirrer, the stirrer is used for mixing sewage, PAC solution and PAM solution, and the bottom of the medicine mixing tank is provided with a sewage draining bottom pipe;
The top of the sedimentation tank is provided with a backwater funnel, the tail end of the sedimentation tank is provided with a water outlet, an overflow weir is arranged at the position, connected with the water outlet, of the interior of the sedimentation tank, a plurality of porous partition plates are arranged in the interior of the sedimentation tank, and a sewage draining bottom pipe is arranged at the bottom of the sedimentation tank;
The top of the middle water tank is communicated with the water outlet of the sedimentation tank through a sewage pipe, the bottom of the middle water tank is communicated with a sludge pipe through a manual ball valve, supernatant fluid of the coagulating sedimentation device flows into the middle water tank through an overflow weir, and the supernatant fluid is conveyed to a water inlet interface at the top of the multi-medium filter through the lifting pump and the sewage pipe after the secondary sedimentation of the middle water tank;
The top of the multi-medium filter is also provided with an aeration interface, two sides of the lower part of the multi-medium filter are symmetrically provided with water outlet interfaces, the two water outlet interfaces are communicated with a sludge pipe through a manual ball valve, the upper part of the multi-medium filter is provided with a sewage outlet, the sewage outlet is led to a backwater funnel through a sewage pipe, and the bottom of the multi-medium filter is provided with a backwash air inlet interface;
the back flushing air inlet interface and the aeration interface are connected with the blower through a breather pipe.
Preferably, the number of the porous partition plates is four to seven, the distance between the bottom of the porous partition plates and the bottom of the sedimentation tank is 10cm to 30cm, and the porous partition plates are vertically and fixedly connected with the side wall of the sedimentation tank through welding or screws.
Preferably, a plurality of drain bottom pipes are symmetrically arranged at the bottom of the sedimentation tank, and the drain bottom pipes are communicated with the sludge pipe through an electric ball valve.
Preferably, an air inlet pipe is arranged in the multi-medium filter, the top of the air inlet pipe is communicated with the aeration interface, and the bottom of the air inlet pipe is communicated with the aeration disc.
Preferably, the bottom center of the multi-medium filter is provided with a bottom air inlet head, the bottom air inlet head is communicated with a back flushing air inlet interface, the upper part of the bottom air inlet head is sleeved with a cone-shaped cover, the top of the cone-shaped cover is communicated with a back flushing tubulation, and a water outlet at the top of the back flushing tubulation is provided with a diversion cone head, wherein:
The distance between the bottom air inlet head and the inner wall of the conical cover is 2-5 cm;
The multi-medium filter is internally filled with filter materials, and the height of the filter materials is lower than that of the diverter cone head and the sewage draining interface;
the filter material comprises one or more of quartz sand, anthracite or manganese sand, and the diameter of the filter material is 2mm to 6mm.
The distributed sewage treatment device has the following beneficial effects:
1) The device is provided with a coagulating sedimentation device, a dosing device, an intermediate water tank and a multi-medium filter, and can treat various sewage at different environmental temperatures by adjusting dosing amount, stirring period, sedimentation time, aeration time and the like, thereby solving the problems of unstable system operation, low standard reaching rate and the like. The multi-medium filter provides intermittent aeration for sewage through the biomembrane attached to the internal filter material so as to complete biochemical reaction, thereby achieving the effect of denitrification and dephosphorization.
2) The coagulating sedimentation device and the multi-medium filter can not only improve the biomass of the system and prolong the residence time of the sludge, but also improve the concentration of the nitrifying bacteria of the strain so as to promote the nitrification; and the inside of the biomembrane attached to the filter material in the multi-medium filter is in an anaerobic or anoxic state, so that denitrification can be performed, and the aim of enhancing biological denitrification and dephosphorization at low temperature is fulfilled.
3) The multi-medium filter passes water with higher turbidity through granular or non-granular materials with a certain thickness under a certain pressure, so that suspended impurities in water are effectively removed to clarify the water, and the wastewater discharge standard approved by the environmental protection department is reached.
4) The back flushing device arranged by the device can achieve the purpose of back flushing the filter material through air pressure impact, the filter material is driven to do a large-scale circulating motion in the back flushing device, the normal operation of the equipment is not affected in the back flushing process, the continuous and reliable operation of the equipment can be ensured, and the yielding water can stably reach the first-level A standard.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the pipeline connection of the coagulating sedimentation device of the present utility model;
FIG. 3 is a schematic view of the internal structure of the coagulating sedimentation device of the present utility model;
FIG. 4 is a schematic view of a perforated separator plate according to the present utility model;
FIG. 5 is a schematic illustration of a multi-media filter piping connection of the present utility model;
FIG. 6 is a schematic view of the exterior structure of the multi-media filter of the present utility model;
Fig. 7 is a schematic view of the internal structure of the multi-media filter of the present utility model.
Wherein, 1-coagulating sedimentation device, 101-mixing tank, 102-sedimentation tank, 103-water inlet, 104-medicine inlet, 105-stirrer, 106-blowdown bottom pipe, 107-backwater funnel, 108-water outlet, 109-overflow weir, 110-perforated baffle, 2-dosing device, 3-intermediate water tank, 4-lift pump, 5-multi-medium filter, 501-water inlet interface, 502-aeration interface, 503-water outlet interface, 504-blowdown interface, 505-back flush air inlet interface, 506-air inlet pipe, 507-aeration disk, 508-bottom air inlet head, 509-conical cover, 510-back flush pipe, 511-diversion cone, 512-air blower, 7-sewage pipe, 8-dosing pipe, 9-sludge pipe, 10-breather pipe, 11-manual ball valve, 12-electric ball valve.
Detailed Description
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
The present utility model will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 7, the decentralized sewage treatment device comprises a coagulating sedimentation device 1, a dosing device 2, an intermediate water tank 3, a lifting pump 4, a multi-medium filter 5 and a blower 6, wherein in the figure, a flocculating agent is added into the coagulating sedimentation device 1 through the dosing device 2 so as to finish high-speed stirring to low-speed stirring treatment to achieve solid-liquid separation, then the supernatant flows into the multi-medium filter 5 through reprecipitation of the intermediate water tank 3, biological films attached to filter materials in the multi-medium filter 5 are subjected to intermittent aeration to perform biochemical reaction, so that the effect of denitrification and dephosphorization is achieved, the multi-medium filter 5 can replace an aerobic zone of a traditional activated sludge method, and nitrified liquid and sludge are refluxed to the front end of a biochemical system, namely, the coagulating sedimentation device 1.
In the figure, the coagulating sedimentation device 1 consists of a medicine mixing tank 101 and a sedimentation tank 102 which are communicated with each other; the top of the medicine mixing tank 101 is provided with a water inlet 103 and a medicine inlet 104, the water inlet 103 is connected with sewage to be treated through a sewage pipe 7 and a water inlet pump, the medicine inlet 104 is connected with a medicine adding device 2 through a medicine adding pipe 8 and a medicine adding pump, the inside of the medicine mixing tank 101 is provided with a stirrer 105, the stirrer 105 is used for mixing sewage, PAC solution and PAM solution, and the bottom of the medicine mixing tank 101 is provided with a sewage draining bottom pipe 106.
In the figure, a backwater funnel 107 is arranged at the top of the sedimentation tank 102, a water outlet 108 is arranged at the tail end of the sedimentation tank 102, an overflow weir 109 is arranged at the position, connected with the water outlet 108, of the interior of the sedimentation tank 102, a plurality of perforated partition plates 110 are arranged in the interior of the sedimentation tank 102, and a sewage draining bottom pipe 106 is arranged at the bottom of the sedimentation tank 102.
It should be noted that the number of the perforated baffles 110 is four to seven, the distance between the bottom of the perforated baffles 110 and the bottom of the sedimentation tank 102 is 10cm to 30cm, and the perforated baffles 110 are vertically and fixedly connected with the side wall of the sedimentation tank 102 by welding or screws.
In actual operation, the mixed liquid in the sedimentation tank 102 flows through the perforated partition plate 110, and flocculent precipitate or granular precipitate has a large resistance when passing through the perforated partition plate 110, and is left at the bottom of the sedimentation tank 102, and the supernatant flows out of the water outlet 108 through the overflow weir 109. The bottom of sedimentation tank 102 symmetry is provided with a plurality of row's dirty end pipe 106, and row's dirty end pipe 106 passes through electric ball valve 12 intercommunication mud pipe 9, and electric ball valve 12 can open or be controlled by PLC local controller by a long-range. In addition, the stirring speed and stirring period of stirrer 105 may also be controlled remotely or by a PLC local controller.
It should be further noted that, in this embodiment, polyaluminium chloride is selected as a coagulant for water treatment, the coagulant is mainly reacted in the coagulating sedimentation device 1, the coagulant adding point is located in the medicine mixing tank, the prepared medicine enters the sedimentation tank through the metering pump, the medicine and raw water are fully and evenly mixed through the rapid stirring of the stirrer, the medicine enters the sedimentation zone for sedimentation, the sedimentation zone is divided into seven sedimentation zones by the partition plate, the bottom of the partition plate is the same, the middle part is perforated to form jet stirring, and the supernatant at the tail end flows into the middle water tank through the water outlet tank.
In the figure, the top of the middle water tank 3 is communicated with the water outlet 108 of the sedimentation tank 102 through a sewage pipe 7, the bottom of the middle water tank 3 is communicated with the sludge pipe 9 through a manual ball valve 11, the supernatant fluid of the coagulating sedimentation device 1 flows into the middle water tank 3 through an overflow weir 109, the supernatant fluid is conveyed to a water inlet interface 501 at the top of the multi-medium filter 5 through a lifting pump 4 and the sewage pipe 7 after being sedimented again in the middle water tank 3, and the function of the middle water tank 3 is to further sediment and separate the supernatant fluid.
In the figure, the top of the multi-medium filter 5 is also provided with an aeration interface 502, two sides of the lower part of the multi-medium filter 5 are symmetrically provided with water outlet interfaces 503, the two water outlet interfaces 503 are communicated with a sludge pipe 9 through a manual ball valve 11, the upper part of the multi-medium filter 5 is provided with a sewage outlet interface 504, the sewage outlet interface 504 is led to a backwater funnel 107 through a sewage pipe 7, and the bottom of the multi-medium filter 5 is provided with a backwater inlet interface 505; the backwash air inlet port 505 and the aeration port 502 are connected with the blower 6 through the ventilation pipe 10.
Specifically, an air inlet pipe 506 is arranged in the multi-medium filter 5, the top of the air inlet pipe 506 is communicated with the aeration interface 502, and the bottom of the air inlet pipe 506 is communicated with the aeration disc 507. The bottom air inlet head 508 is installed at the bottom center of the multi-medium filter 5, the bottom air inlet head 508 is communicated with the back flush air inlet interface 505, a conical cover 509 is sleeved on the upper portion of the bottom air inlet head 508, a back flush tubulation 510 is communicated with the top of the conical cover 509, and a diversion conical head 511 is installed at the top water outlet of the back flush tubulation 510, wherein: the distance between the bottom air inlet head 508 and the inner wall of the conical cover 509 is 2 to 5cm; the multi-medium filter 5 is internally filled with filter material 512, and the height of the filter material 512 is lower than the heights of the diverter cone 511 and the pollution discharge interface 504; the filter material 512 comprises one or more of quartz sand, anthracite, or manganese sand, and the diameter of the filter material 512 is 2mm to 6mm, preferably an anthracite material.
In this embodiment, the bottom air inlet head is located with the inside of cone cover, and cone cover's shape and headspace are used for guiding high-pressure air current, sewage and filter material upward movement and avoid blockking up the body, and the top of back flush tubulation is provided with the delivery port, and the effect of top delivery port is that guide filter material, sewage, gaseous mixture follow the even backward flow of cone cover to the jar body inside.
It should be further noted that the effluent from the intermediate pond is lifted by the pump into the top of the multimedia filter device and passes through the filter layer consisting of the packing, forming a biofilm on the surface of the packing. When the treated water is filtered through the filter layer, air is introduced from the bottom of the filler and rises from the gaps of the filler to contact the downstream treated water in opposite directions, and oxygen in the air is transferred into the treated water to provide sufficient dissolved oxygen and rich organic matters for microorganisms on the biological membrane. The treated water passes through the biomembrane attached to the filler and provides intermittent aeration for the treated water to carry out biochemical reaction, so that the effect of denitrification and dephosphorization is achieved, and meanwhile, the treated water is further filtered by the filler to remove pollutants such as COD, SS and the like.
During actual operation, sewage enters the multi-medium filter through the water inlet interface, at the moment, the aeration device performs according to preset aeration frequency and aeration period, and the reactor provides intermittent aeration for sewage through the biomembrane attached to the internal filter material so as to complete biochemical reaction, thereby achieving the effect of denitrification and dephosphorization. When the equipment is required to be backwashed, a backwater device is started, high-pressure gas enters the conical cover from the bottom air inlet head, at the moment, the high-pressure gas drives a mixture of filter materials, sewage, filter material residues and the like to enter a backwater tubulation, then flows out from the top water outlet, and uniformly flows back through the flow distribution conical head, the backwater device of the reactor can achieve the aim of backwater biological stuffing through the air pressure impact of an air compressor, and can drive the stuffing to do large-amplitude circulating motion in the tank body, the biological stuffing rubs and collides with each other during the motion so as to separate pollutants and aged biological films attached to the stuffing, thereby achieving the cleaning aim, ensuring that the equipment continuously and reliably works, and the water outlet can stably reach the first-level A standard.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (5)
1. The utility model provides a dispersion sewage treatment plant, its characterized in that includes coagulating sedimentation device (1), dosing device (2), intermediate water pond (3), elevator pump (4), multi-media filter (5) and air-blower (6), wherein:
the coagulating sedimentation device (1) consists of a medicine mixing tank (101) and a sedimentation tank (102) which are communicated with each other;
The top of the medicine mixing tank (101) is provided with a water inlet (103) and a medicine inlet (104), the water inlet (103) is connected with sewage to be treated through a sewage pipe (7) and a water inlet pump, the medicine inlet (104) is connected with a medicine adding device (2) through a medicine adding pipe (8) and a medicine adding pump, the inside of the medicine mixing tank (101) is provided with a stirrer (105), the stirrer (105) is used for mixing sewage, PAC solution and PAM solution, and the bottom of the medicine mixing tank (101) is provided with a sewage draining bottom pipe (106);
A backwater funnel (107) is arranged at the top of the sedimentation tank (102), a water outlet (108) is arranged at the tail end of the sedimentation tank (102), an overflow weir (109) is arranged at the position, connected with the water outlet (108), of the interior of the sedimentation tank (102), a plurality of perforated partition boards (110) are arranged in the interior of the sedimentation tank (102), and a sewage draining bottom pipe (106) is arranged at the bottom of the sedimentation tank (102);
The top of the middle water tank (3) is communicated with a water outlet (108) of the sedimentation tank (102) through a sewage pipe (7), the bottom of the middle water tank (3) is communicated with a sludge pipe (9) through a manual ball valve (11), supernatant fluid of the coagulating sedimentation device (1) flows into the middle water tank (3) through an overflow weir (109), and the supernatant fluid is conveyed to a water inlet (501) at the top of the multi-medium filter (5) through the lifting pump (4) and the sewage pipe (7) after the secondary sedimentation of the middle water tank (3);
The top of the multi-medium filter (5) is also provided with an aeration interface (502), two sides of the lower part of the multi-medium filter (5) are symmetrically provided with water outlet interfaces (503), the two water outlet interfaces (503) are communicated with a sludge pipe (9) through a manual ball valve (11), the upper part of the multi-medium filter (5) is provided with a sewage outlet interface (504), the sewage outlet interface (504) is led to a backwater funnel (107) through a sewage pipe (7), and the bottom of the multi-medium filter (5) is provided with a backwash air inlet interface (505);
The back flushing air inlet port (505) and the aeration port (502) are connected with the blower (6) through a vent pipe (10).
2. The decentralized wastewater treatment device according to claim 1, wherein the number of the perforated baffles (110) is four to seven, the distance between the bottom of the perforated baffles (110) and the bottom of the sedimentation tank (102) is 10cm to 30cm, and the perforated baffles (110) are vertically fixed to the side wall of the sedimentation tank (102) by welding or screws.
3. A decentralized sewage treatment device according to claim 1, characterized in that the bottom of the sedimentation tank (102) is symmetrically provided with a plurality of sewage draining bottom pipes (106), and the sewage draining bottom pipes (106) are communicated with the sludge pipe (9) through an electric ball valve (12).
4. A decentralized sewage treatment device according to claim 1, characterized in that the multi-medium filter (5) is internally provided with an air inlet pipe (506), the top of the air inlet pipe (506) is communicated with an aeration interface (502), and the bottom of the air inlet pipe (506) is communicated with an aeration disc (507).
5. The decentralized sewage treatment device according to claim 1, wherein a bottom air inlet head (508) is installed at the bottom center of the multi-medium filter (5), the bottom air inlet head (508) is communicated with a backwash air inlet interface (505), a conical cover (509) is sleeved on the upper part of the bottom air inlet head (508), a backwash tubing (510) is communicated with the top of the conical cover (509), and a diversion cone head (511) is installed at the top water outlet of the backwash tubing (510), wherein:
The distance between the bottom air inlet head (508) and the inner wall of the conical cover (509) is 2-5 cm;
The multi-medium filter (5) is internally filled with a filter material (512), and the height of the filter material (512) is lower than the heights of the diversion cone head (511) and the pollution discharge interface (504);
The filter material (512) comprises one or more of quartz sand, anthracite or manganese sand, and the diameter of the filter material (512) is 2mm to 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322406002.8U CN220867221U (en) | 2023-09-05 | 2023-09-05 | Distributed sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322406002.8U CN220867221U (en) | 2023-09-05 | 2023-09-05 | Distributed sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220867221U true CN220867221U (en) | 2024-04-30 |
Family
ID=90821550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322406002.8U Active CN220867221U (en) | 2023-09-05 | 2023-09-05 | Distributed sewage treatment device |
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