CN210367360U - Domestic sewage treatment device and rural water circulation system - Google Patents

Domestic sewage treatment device and rural water circulation system Download PDF

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Publication number
CN210367360U
CN210367360U CN201921318143.1U CN201921318143U CN210367360U CN 210367360 U CN210367360 U CN 210367360U CN 201921318143 U CN201921318143 U CN 201921318143U CN 210367360 U CN210367360 U CN 210367360U
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CN
China
Prior art keywords
cavity
water
tank body
domestic sewage
sewage treatment
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Expired - Fee Related
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CN201921318143.1U
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Chinese (zh)
Inventor
徐越群
赵宏杰
刘佳
赵巧丽
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Shijiazhuang Institute of Railway Technology
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Shijiazhuang Institute of Railway Technology
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Abstract

The utility model provides a domestic sewage treatment device and rural water circulating system belongs to rural sewage treatment field. The domestic sewage treatment device comprises an adjusting tank and an adsorption treatment tank. The adjusting tank comprises a first tank body and a filter grid which divides the first tank body into a water inlet cavity and a sedimentation cavity, and the first tank body is provided with a water inlet, an oil stain overflow outlet communicated with the upper part of the sedimentation cavity, a primary water outlet communicated with the middle part of the sedimentation cavity and a first sludge discharge port communicated with the lower part of the sedimentation cavity. The adsorption treatment tank comprises a second tank body and an activated carbon adsorption layer which divides the second tank body into a water filtering cavity and a water purifying cavity. The primary purified water outlet is communicated with a water filtering cavity through a filtering valve, and the position of the water filtering cavity is lower than that of the sedimentation cavity. The rural water circulation system comprises a domestic sewage treatment device. The utility model discloses a domestic sewage treatment plant and rural water circulating system, simple structure, activated carbon adsorption layer's long service life, the operation process need not to provide extra power, and cost and working costs are all lower.

Description

Domestic sewage treatment device and rural water circulation system
Technical Field
The utility model belongs to the technical field of rural sewage treatment, more specifically say, relate to a domestic sewage treatment plant and rural water circulating system.
Background
According to statistics, the total amount of discharged wastewater in China is 600 hundred million tons per year, wherein the annual output of rural domestic sewage is 80 hundred million tons per year, the rural sewage treatment rate is about 6 percent, and most villages have no perfect sewage collecting and treating systems. The domestic sewage is the key and difficult point of rural sewage treatment because of the characteristics of difficult uniform collection and treatment, obvious seasonal characteristics, large water fluctuation, high organic pollutants and the like. Untreated rural domestic sewage is not only a potential threat to drinking water source areas, but also an important reason for eutrophication of rivers and lakes.
Many rural sewage treatment schemes are available, such as canna undercurrent artificial wetland system, artificial wetland system based on modular packing, artificial wetland system based on common crushed stone packing, rural domestic sewage treatment system adopting anaerobic + drop aeration + artificial wetland combined process, and the like. The existing rural sewage treatment scheme needs to invest a large amount of manpower and material resources to carry out initial construction, continuous power needs to be provided to maintain operation in subsequent use, filter materials are replaced periodically, and the cost and the use cost of the system are high, so that large-scale popularization is difficult to carry out.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a domestic sewage treatment device to the rural sewage treatment scheme structure that exists among the solution prior art is complicated, need provide the power that lasts in the follow-up use and maintain the operation, and the filter material is changed to the periodic basis, leads to the cost of system and the higher technical problem of use cost.
In order to achieve the above object, the utility model adopts the following technical scheme: provided is a domestic sewage treatment apparatus including:
the adjusting tank comprises a first tank body and a filtering grid arranged in the first tank body, the filtering grid divides an inner cavity of the first tank body into a water inlet cavity and a sedimentation cavity positioned below the water inlet cavity, and the first tank body is provided with a water inlet communicated with the water inlet cavity, an oil stain overflow outlet communicated with the upper part of the sedimentation cavity, a primary water outlet communicated with the middle part of the sedimentation cavity and a first sludge discharge port communicated with the lower part of the sedimentation cavity; and
the adsorption treatment tank comprises a second tank body and an activated carbon adsorption layer arranged in the second tank body, the activated carbon adsorption layer divides an inner cavity of the second tank body into a water filtering cavity and a water purifying cavity positioned below the water filtering cavity, and the second tank body is provided with a purified water discharge port communicated with the water purifying cavity;
the primary purified water outlet is communicated with the water filtering cavity through a filtering valve, and the position of the water filtering cavity is lower than that of the precipitation cavity.
Further, first cell body is closed cell body, the top of first cell body is equipped with the intercommunication intake antrum with first breather pipe of first cell body outside.
Further, the first breather pipe is vertically arranged, the lower end of the first breather pipe is communicated with the water inlet cavity, and the upper end of the first breather pipe is bent downwards.
Further, the first tank body comprises a bottom shell with an opening at the top and a cover plate for covering the opening of the bottom shell; the filtration grid include by the intake antrum to deposit thick grid and the thin grid that sets gradually in the chamber direction, thick grid and thin grid respectively with the drain pan can be dismantled and be connected, the opening of drain pan is used for making thick grid with the thin grid passes through.
Further, the bottom of drain pan is the infundibulate, first mud discharging port locates the bottommost of drain pan is equipped with first mud valve.
Furthermore, the active carbon adsorption layer comprises a first glass bead layer, an active carbon layer and a second glass bead layer which are sequentially arranged in the direction from the water filtering cavity to the water purifying cavity.
Further, the second tank body is a closed tank body, and a second vent pipe communicated with the water filtering cavity and the outside of the second tank body is arranged at the top of the second tank body.
Furthermore, the second vent pipe is vertically arranged, the lower end of the second vent pipe is communicated with the water filtering cavity, and the upper end of the second vent pipe is bent downwards.
Further, the bottom of second cell body is the infundibulate, the bottommost of second cell body is equipped with the second mud discharging port, the second mud discharging port is equipped with the second mud valve.
When the domestic sewage filter is used, domestic sewage enters the water inlet cavity from the water inlet, the domestic sewage in the water inlet cavity passes through the filter grids under the action of self gravity, and the filter grids remove particulate matters in the domestic sewage. Domestic sewage after being filtered by the filter screen falls into the sedimentation chamber and carries out the sediment of stewing, and the greasy dirt in the domestic sewage come-up and spill over from the greasy dirt overflow outlet, and mud in the domestic sewage sinks to the sedimentation chamber lower part to discharge from first mud discharging mouth. Set to be less than through the position with straining the water cavity the position of sedimentation chamber for after opening the filter valve, the water purification of beginning at the middle part of the sedimentation chamber can be automatic flow into the drainage chamber from the water purification export of beginning, just the water purification gets into the water purification chamber through activated carbon adsorption layer under the effect of gravity, activated carbon adsorption layer passes through physical adsorption, organic filth in the water is removed to performance such as chemisorption and oxidation catalysis, detach the peculiar smell of aquatic, finally just the water forms clean water in the water purification intracavity after activated carbon adsorption layer filters, clean water is used for washing, irrigate etc. from the discharge port of water purification.
The utility model provides a domestic sewage treatment device's beneficial effect lies in: compared with the prior art, the utility model discloses domestic sewage treatment plant designs to domestic sewage's composition, handles domestic sewage through stewing and filterable mode, and whole device simple structure, the cost is low. Keep apart equalizing basin and adsorption treatment pond through the filter valve for domestic sewage is abundant in the equalizing basin sedimentation of stewing, detach greasy dirt and mud in the domestic sewage, later send into the adsorption treatment pond with just purification water again and filter, can avoid greasy dirt and mud to pollute the active carbon adsorption layer, the life of extension active carbon adsorption layer reduces the number of times that the filter material was changed, reduces use cost. And the treatment process of domestic sewage in equalizing basin and absorption treatment tank relies on self gravity completely, need not extra power, convenient to use, the working costs is low.
The utility model also provides a rural water circulation system, including above arbitrary one domestic sewage treatment plant.
The utility model provides a rural water circulation system adopts foretell sewage treatment plant, and its beneficial effect is the same with above-mentioned sewage treatment plant's beneficial effect, no longer gives unnecessary details here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
FIG. 1 is a schematic structural view of a domestic sewage treatment apparatus provided in an embodiment of the present invention;
FIG. 2 is a top view of the coarse grid of FIG. 1;
fig. 3 is a top view of the fine grid of fig. 1.
Wherein, in the figures, the respective reference numerals:
1-a regulating reservoir; 11-a first tank body; 12-a filter grid; 121-coarse grating; 122-a fine grid; 123-wide gate hole; 124-narrow gate holes; 13-water inlet cavity; 131-a water inlet; 14-a sedimentation chamber; 141-oil overflow port; 142-a primary purified water outlet; 143-a first sludge discharge port; 144-a first mud valve; 15-a first vent pipe; 2-an adsorption treatment tank; 21-a second tank body; 22-activated carbon adsorption layer; 221-a first glass bead layer; 222-a layer of activated carbon; 223-a second glass bead layer; 23-a water filtering cavity; 24-a water purification cavity; 241-a purified water discharge port; 242-second sludge discharge port; 243-second mud valve; 25-a second vent; 3-filtering the valve.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a domestic sewage treatment apparatus according to an embodiment of the present invention will now be described. A domestic sewage treatment device comprises a regulating tank 1 and an adsorption treatment tank 2.
The adjusting tank 1 comprises a first tank body 11 and a filtering grid 12 arranged in the first tank body 11, the filtering grid 12 divides an inner cavity of the first tank body 11 into a water inlet cavity 13 and a sedimentation cavity 14 positioned below the water inlet cavity 13, and the first tank body 11 is provided with a water inlet 131 communicated with the water inlet cavity 13, an oil stain overflow outlet 141 communicated with the upper part of the sedimentation cavity 14, a primary purified water outlet 142 communicated with the middle part of the sedimentation cavity 14 and a first sludge discharge port 143 communicated with the lower part of the sedimentation cavity 14.
The adsorption treatment tank 2 comprises a second tank body 21 and an activated carbon adsorption layer 22 arranged in the second tank body 21, the activated carbon adsorption layer 22 separates the inner cavity of the second tank body 21 into a water filtering cavity 23 and a water purifying cavity 24 positioned below the water filtering cavity 23, and the second tank body 21 is provided with a water purifying discharge port 241 communicated with the water purifying cavity 24.
The primary purified water outlet 142 is communicated with the filter water cavity 23 through the filter valve 3, and the position of the filter water cavity 23 is lower than that of the sedimentation cavity 14.
During the use, domestic sewage gets into intake chamber 13 by water inlet 131, and domestic sewage in the intake chamber 13 passes through filtering grille 12 under the effect of self gravity, and filtering grille 12 gets rid of the particulate matter in the domestic sewage, prevents that the particulate matter from blockking up the pipeline. The domestic sewage filtered by the filtering grille 12 falls into the sedimentation cavity 14 for standing sedimentation, the oil stain in the domestic sewage floats upwards and overflows from the oil stain overflow port 141, and the sludge in the domestic sewage sinks to the lower part of the sedimentation cavity 14 and is discharged from the first sludge discharge port 143. Set the position that is less than precipitation chamber 14 through the position with straining water chamber 23, make after opening filter valve 3, the just water purification of middle part can be automatic flows into straining water chamber 23 from just water outlet 142 in precipitation chamber 14, just water purification passes through activated carbon adsorption layer 22 under the effect of gravity and gets into water purification chamber 24, activated carbon adsorption layer 22 passes through physical adsorption, organic filth in performance such as chemisorption and oxidation catalysis removes the sewage, detach the peculiar smell of aquatic, finally just water forms the clean water in water purification chamber 24 after activated carbon adsorption layer 22 filters, the clean water is discharged from water purification discharge port 241 and is used for washing, irrigate etc..
Compared with the prior art, the utility model discloses domestic sewage treatment device designs to domestic sewage's composition, handles domestic sewage through the mode of stewing and filtering, and whole device simple structure, the cost is low. Keep apart equalizing basin 1 and adsorption treatment pond 2 through filter valve 3 for domestic sewage is abundant in equalizing basin 1 the sediment of stewing, detach greasy dirt and mud in the domestic sewage, later send into the water of just purifying into adsorption treatment pond 2 again and filter, can avoid greasy dirt and mud to pollute active carbon adsorption layer 22, extension active carbon adsorption layer 22's life, reduce the number of times that the filter material was changed, reduce use cost. And the treatment process of domestic sewage in the equalizing basin 1 and the adsorption treatment tank 2 completely depends on the gravity of the domestic sewage, no additional power is needed, the use is convenient, and the operating cost is low.
Specifically, the first tank body 11 of the adjusting tank 1 adopts a stainless steel tank body structure. The filter grid 12 is horizontally arranged in the first tank body 11, so as to divide the inner cavity of the first tank body 11 into an upper water inlet cavity 13 and a lower sedimentation cavity 14. The water inlet 131 is arranged on the side wall of the water inlet cavity 13, the oil stain overflow port 141 and the primary purified water outlet 142 are respectively arranged on the side wall of the sedimentation cavity 14, and the first sludge discharge port 143 is arranged at the bottom of the sedimentation cavity 14. The outside of the first tank body 11 can be further provided with a liquid level meter for measuring the liquid level of the sedimentation cavity 14, so that the amount of sewage in the sedimentation cavity 14 can be observed and adjusted conveniently.
The second tank body 21 of the adsorption treatment tank 2 may adopt a stainless steel tank body structure. The activated carbon adsorption layer 22 is horizontally arranged in the second tank body 21, so that the inner cavity of the second tank body 21 is divided into an upper water filtering cavity 23 and a lower water purifying cavity 24. The purified water discharge port 241 is provided on the sidewall of the purified water chamber 24. The outside of the second tank body 21 can be provided with a liquid level meter for measuring the liquid level of the purified water cavity 24, so that the amount of the clean water in the purified water cavity 24 can be observed and adjusted conveniently.
When in use, the adsorption treatment tank 2 can be buried underground, so that the position of the water filtering cavity 23 is lower than that of the sedimentation cavity 14, and the floor area of the domestic sewage treatment device can be reduced. The water inlet 131 may be provided with a valve to control the amount of water in the regulating reservoir 1.
Referring to fig. 1, as a specific embodiment of the domestic sewage treatment apparatus of the present invention, the first tank 11 is a closed tank, and the top of the first tank 11 is provided with a first vent pipe 15 communicating the water inlet cavity 13 and the outside of the first tank 11.
Specifically, first cell body 11 is cuboid or square, six all adopt corrosion resistant plate parcel for 11 whole closures of first cell body, rain-proof, dustproof. Through set up first breather pipe 15 at the top of first cell body 11, when domestic sewage flowed into intake chamber 13 from water inlet 131, the air in intake chamber 13 was discharged to first breather pipe 15, avoided the gas in the intake chamber 13 to hinder domestic sewage's flow.
Referring to fig. 1, in the sewage treatment apparatus according to an embodiment of the present invention, the first ventilation pipe 15 is vertically disposed, and has a lower end connected to the water inlet chamber 13 and an upper end bent downward. The vertical arrangement of first breather pipe 15 is convenient for gaseous upwards discharge, avoids domestic sewage to spill over from first breather pipe 15 simultaneously. The upper end of the first vent pipe 15 is bent downwards, so that rainwater, sand blown by the wind and the like are prevented from entering the water inlet cavity 13 through the first vent pipe 15.
Specifically, the first vent pipe 15 is made of a vertical steel pipe, the lower end of the first vent pipe is welded and fixed on the top surface of the first tank body 11, and the upper end of the first vent pipe is bent into a semi-circular arc shape, so that the upper end is bent downward.
Referring to fig. 1 to 3 together, as a specific embodiment of the domestic sewage treatment apparatus provided by the present invention, the first tank 11 includes a bottom shell having an opening at the top and a cover plate for covering the opening of the bottom shell; the filtering grille 12 comprises a thick grille 121 and a thin grille 122 which are sequentially arranged in the direction from the water inlet cavity 13 to the sedimentation cavity 14, the thick grille 121 and the thin grille 122 are respectively detachably connected with the bottom shell, and the opening of the bottom shell is used for enabling the thick grille 121 and the thin grille 122 to pass through. The coarse grating 121 and the fine grating 122 can be respectively taken out to be cleaned by opening the cover plate, so that later maintenance is facilitated.
Specifically, the coarse grating 121 and the fine grating 122 may be respectively formed by punching holes in a steel plate. The hole diameter of the fine grill 122 is smaller than that of the coarse grill 121. For example, the diameter of the holes of the coarse grill 121 may be 10mm to 30mm, and the diameter of the holes of the fine grill 122 may be 3mm to 10 mm. As shown in fig. 2, the coarse grating 121 may be formed by forming a plurality of parallel elongated wide grating holes 123 in a rectangular steel plate, and the coarse grating 121 may be formed by connecting a plurality of steel wires side by side in a grating shape, with the elongated wide grating holes 123 formed between adjacent steel wires. The width of the wide gate hole 123 may be 10mm to 30 mm. As shown in fig. 3, the fine grid 122 may be formed by forming a plurality of parallel elongated narrow grid holes 124 in a rectangular steel plate, and the fine grid 122 may be formed by connecting a plurality of steel wires side by side in a grid shape, with the elongated narrow grid holes 124 formed between adjacent steel wires. The width of the narrow gate hole 124 may be 3mm to 10 mm. The thick grating 121 and the thin grating 122 are respectively provided with a handle, so that the carrying is convenient. The inner walls of the periphery of the bottom shell are respectively provided with a supporting angle, such as an angle iron welded on the inner wall of the bottom shell. When the fine grating 122 is horizontally placed in the bottom case, the peripheries of the fine grating 122 are respectively supported by the supporting corners, so that the fine grating 122 is fixed with the bottom case. The thick grating 121 may be horizontally disposed above the thin grating 122, or may be fixed to the bottom case by a supporting corner.
Referring to fig. 1, as an embodiment of the sewage treatment device of the present invention, the bottom of the bottom shell is funnel-shaped, and the first sludge discharge port 143 is disposed at the bottom of the bottom shell and is provided with a first sludge discharge valve 144. The sludge can be conveniently collected to the first sludge discharge port 143, and the sludge can be discharged only by opening the first sludge discharge valve 144. Specifically, the central depression of the bottom shell forms a funnel shape.
Referring to fig. 1, as an embodiment of the domestic sewage treatment apparatus of the present invention, the activated carbon adsorption layer 22 includes a first glass bead layer 221, an activated carbon layer 222, and a second glass bead layer 223 sequentially disposed from the water filtering cavity 23 to the clean water cavity 24. The first glass bead layer 221 and the second glass bead layer 223 can perform the functions of interception and uniform distribution, so that the initial purified water can be uniformly distributed on the activated carbon layer 222, and the filtering efficiency is improved. And when the rivers passed through first glass pearl layer 221 and second glass pearl layer 223, the interception effect of glass pearl and its adsorption effect that produces static help to form high-quality clear water quality after filtering, and the adhesion of pollutant and bacterium has effectively been prevented on the glossy surface of glass pearl, has reduced the biological fouling, and the difficult load surface of biomembrane has prolonged effective filtration time, and the filter effect is superior.
Specifically, the particle size of the artificial glass bead filter material used for the first glass bead layer 221 and the second glass bead layer 223 is 0.6-0.8 mm. In practice, a stainless steel net is horizontally fixed at the middle position of the second tank body 21, then artificial glass beads are laid on the stainless steel net to form a second glass bead layer 223, then an isolation gauze is laid on the second glass bead layer 223, activated carbon is laid on the isolation gauze to form an activated carbon layer 222, then an isolation gauze is laid on the activated carbon layer 222 again, and finally artificial glass beads are laid on the isolation gauze to form the first glass bead layer 221.
Referring to fig. 1, as a specific embodiment of the domestic sewage treatment apparatus of the present invention, the second tank 21 is a closed tank, and a second vent pipe 25 is disposed at the top of the second tank 21 and communicates the water filtering cavity 23 and the outside of the second tank 21.
Specifically, second cell body 21 is cuboid or square, six all adopts the corrosion resistant plate parcel to be sealing connection between each, make 11 whole inclosed of first cell body, make second cell body 21 can bury the underground and can not get into impurity. Through set up second breather pipe 25 at the top of second cell body 21, when just clean water flows into filtration chamber 23, the air in filtration chamber 23 is discharged to second breather pipe 25, avoids the gas in the filtration chamber 23 to hinder the flow of just clean water. More specifically, the height of the second vent pipe 25 is such that the upper end thereof can penetrate the ground surface.
Referring to fig. 1, as an embodiment of the sewage treatment apparatus of the present invention, the second vent pipe 25 is vertically disposed, and has a lower end connected to the water filtering chamber 23 and an upper end bent downward. The second vent pipe 25 is vertically arranged, so that gas can be discharged upwards, and meanwhile domestic sewage is prevented from overflowing from the second vent pipe 25. The upper end of the second vent pipe 25 is bent downwards, so that rainwater, sand blown by the wind and the like are prevented from entering the water inlet cavity 13 through the first vent pipe 15.
Specifically, the second vent pipe 25 is made of a vertical steel pipe, the lower end of the second vent pipe is welded and fixed on the top surface of the second tank body 21, and the upper end of the second vent pipe is bent into a semi-circular arc shape, so that the upper end is bent downward. After the second tank body 21 is buried underground, the upper end of the second vent pipe 25 is exposed on the ground surface.
Referring to fig. 1, as an embodiment of the domestic sewage treatment apparatus of the present invention, the bottom of the second tank 21 is funnel-shaped, the bottom of the second tank 21 is provided with a second sludge discharge port 242, and the second sludge discharge port 242 is provided with a second sludge discharge valve 243. In the using process, sludge is gradually accumulated at the bottom of the second tank body 21, the sludge is collected in the second tank body 21 to the second sludge discharge port 242, and the sludge can be discharged only by opening the second sludge discharge valve 243. Specifically, the central depression of the bottom of the second tank body 21 forms a funnel shape.
The embodiment of the utility model provides a still provide a rural water circulating system, including the domestic sewage treatment plant of above arbitrary item.
Compared with the prior art, the utility model discloses rural water circulating system adopts foretell domestic sewage treatment plant, designs to domestic sewage's composition, handles domestic sewage through the mode of stewing and filtering, has simplified entire system's structure, and the cost is low. Keep apart equalizing basin 1 and adsorption treatment pond 2 through filter valve 3 for domestic sewage is abundant in equalizing basin 1 the sediment of stewing, detach greasy dirt and mud in the domestic sewage, later send into the water of just purifying into adsorption treatment pond 2 again and filter, can avoid greasy dirt and mud to pollute active carbon adsorption layer 22, extension active carbon adsorption layer 22's life, reduce the number of times that the filter material was changed, reduce use cost. And the treatment process of domestic sewage in the equalizing basin 1 and the adsorption treatment tank 2 completely depends on the gravity of the domestic sewage, no additional power is needed, the use is convenient, and the operating cost is low.
Particularly, the rural water circulation system further includes various sewage collecting systems, such as a rainwater collecting system, a bath water collecting system, a kitchen sewage collecting system, and the like. Various sewage collecting systems send the collected domestic sewage into a domestic sewage treatment device for treatment, so that the cyclic utilization of the domestic sewage is realized. The rural water circulation system further comprises a subsequent water treatment system communicated with the purified water discharge port 241, and the subsequent water treatment system can further treat the clean water by adopting a chemical method or a biological method so as to obtain the clean water with higher cleanliness.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A domestic sewage treatment device, comprising:
the adjusting tank comprises a first tank body and a filtering grid arranged in the first tank body, the filtering grid divides an inner cavity of the first tank body into a water inlet cavity and a sedimentation cavity positioned below the water inlet cavity, and the first tank body is provided with a water inlet communicated with the water inlet cavity, an oil stain overflow outlet communicated with the upper part of the sedimentation cavity, a primary water outlet communicated with the middle part of the sedimentation cavity and a first sludge discharge port communicated with the lower part of the sedimentation cavity; and
the adsorption treatment tank comprises a second tank body and an activated carbon adsorption layer arranged in the second tank body, the activated carbon adsorption layer divides an inner cavity of the second tank body into a water filtering cavity and a water purifying cavity positioned below the water filtering cavity, and the second tank body is provided with a purified water discharge port communicated with the water purifying cavity;
the primary purified water outlet is communicated with the water filtering cavity through a filtering valve, and the position of the water filtering cavity is lower than that of the precipitation cavity.
2. The domestic sewage treatment apparatus according to claim 1, wherein: the first tank body is a closed tank body, and the top of the first tank body is provided with a first vent pipe communicated with the water inlet cavity and the outside of the first tank body.
3. The domestic sewage treatment apparatus according to claim 2, wherein: the first breather pipe is vertically arranged, the lower end of the first breather pipe is communicated with the water inlet cavity, and the upper end of the first breather pipe is bent downwards.
4. The domestic sewage treatment apparatus according to claim 2, wherein: the first pool body comprises a bottom shell with an opening at the top and a cover plate for sealing the opening of the bottom shell; the filtration grid include by the intake antrum to deposit thick grid and the thin grid that sets gradually in the chamber direction, thick grid and thin grid respectively with the drain pan can be dismantled and be connected, the opening of drain pan is used for making thick grid with the thin grid passes through.
5. The domestic sewage treatment apparatus according to claim 4, wherein: the bottom of drain pan is the infundibulate, first mud discharging port is located the bottommost of drain pan is equipped with first mud valve.
6. The domestic sewage treatment apparatus according to any one of claims 1 to 5, wherein: the active carbon adsorption layer comprises a first glass bead layer, an active carbon layer and a second glass bead layer which are sequentially arranged in the direction of the water filtering cavity and the direction of the water purifying cavity.
7. The domestic sewage treatment apparatus according to any one of claims 1 to 5, wherein: the second tank body is a closed tank body, and a second vent pipe communicated with the water filtering cavity and the outside of the second tank body is arranged at the top of the second tank body.
8. The domestic sewage treatment apparatus according to claim 7, wherein: the second vent pipe is vertically arranged, the lower end of the second vent pipe is communicated with the water filtering cavity, and the upper end of the second vent pipe is bent downwards.
9. The domestic sewage treatment apparatus according to claim 7, wherein: the bottom of second cell body is the infundibulate, the bottommost of second cell body is equipped with the second mud discharging port, the second mud discharging port is equipped with the second mud valve.
10. A rural water circulation system comprising a domestic sewage treatment apparatus according to any one of claims 1 to 9.
CN201921318143.1U 2019-08-14 2019-08-14 Domestic sewage treatment device and rural water circulation system Expired - Fee Related CN210367360U (en)

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CN201921318143.1U CN210367360U (en) 2019-08-14 2019-08-14 Domestic sewage treatment device and rural water circulation system

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Application Number Priority Date Filing Date Title
CN201921318143.1U CN210367360U (en) 2019-08-14 2019-08-14 Domestic sewage treatment device and rural water circulation system

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111573783A (en) * 2020-06-12 2020-08-25 宁波爱科特生活电器有限公司 Manual booster-type membrane filtration water purifier device
CN112390372A (en) * 2020-11-09 2021-02-23 河南省地质矿产勘查开发局第二地质环境调查院 Water collecting and distributing tank, and recycling treatment system and method for mineral processing industrial wastewater
CN117776462A (en) * 2024-02-23 2024-03-29 济南市环境研究院(济南市黄河流域生态保护促进中心) Integrated constructed wetland sewage treatment system and sewage treatment process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111573783A (en) * 2020-06-12 2020-08-25 宁波爱科特生活电器有限公司 Manual booster-type membrane filtration water purifier device
CN112390372A (en) * 2020-11-09 2021-02-23 河南省地质矿产勘查开发局第二地质环境调查院 Water collecting and distributing tank, and recycling treatment system and method for mineral processing industrial wastewater
CN117776462A (en) * 2024-02-23 2024-03-29 济南市环境研究院(济南市黄河流域生态保护促进中心) Integrated constructed wetland sewage treatment system and sewage treatment process

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