CN109761377B - Backwater well type rural sewage back-osmosis treatment device and method - Google Patents
Backwater well type rural sewage back-osmosis treatment device and method Download PDFInfo
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- CN109761377B CN109761377B CN201910236745.0A CN201910236745A CN109761377B CN 109761377 B CN109761377 B CN 109761377B CN 201910236745 A CN201910236745 A CN 201910236745A CN 109761377 B CN109761377 B CN 109761377B
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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 invention relates to a backwater well type rural sewage rewet treatment device which comprises a large barrel, a small barrel, a water inlet pipe, an overflow pipe, a water distribution plate and a water distribution pipe, wherein the large barrel is provided with the water inlet pipe and the overflow pipe; the water distribution plate is positioned in the cavity inside the small barrel, and the filtering filler is filled above the water distribution plate; the lower end of the water distribution pipe penetrates through the water distribution plate and extends into the water distribution cavity, the water distribution plate is provided with water distribution holes, and the vat is provided with water seepage holes. The sewage treatment method of the invention comprises the following steps: a) selecting and loading a filler; b) burying the processing device; c) filtering the sewage; d) purifying sewage; e) sewage back-osmosis. According to the sewage treatment device and method, the sewage is filtered by the filler, so that the filtration of suspended particles in the sewage and the absorption of nitrogen and phosphorus elements are realized, the treated sewage flows into the ground through the water seepage holes, and then the treated sewage is made to seep back to the ground to enter the natural environment and is directly used by animals and plants in the environment, and the sewage treatment device and method have the advantages of economy, high efficiency, energy conservation and environmental friendliness.
Description
Technical Field
The invention relates to a sewage treatment device and a sewage treatment method, in particular to a backwater well type rural sewage back-osmosis treatment device and a method.
Background
The rural area of China is vast, the rural sewage treatment is the problem which needs to be solved urgently at present, most domestic sewage is not treated and is discharged randomly, so that the water quality of ditches and ponds is blacked and smelled, mosquitoes are bred, the living environment and the body health of residents are seriously affected, and meanwhile, the pollution of drinking water sources and the eutrophication of lakes and rivers can be caused. Because the quality of water is different in different places, the same sewage treatment equipment has different treatment effects on different qualities of water, and when the quality of the effluent is poor, the treated water can reach the standard by further advanced treatment.
Meanwhile, as more and more rural domestic sewage is discharged in a centralized manner, the underground water is not supplied enough, the rural underground water is not supplied circularly, a good living environment cannot be provided for animals and plants, and if the domestic sewage can be fully utilized and purified and then permeates into the underground, the problem can be solved.
The invention relates to a combined structure of two barrels with different sizes, and fillers with different properties are added into the barrels, so that the purpose of performing advanced treatment on treated sewage with different water qualities is achieved. The invention aims to invent an economical, efficient, energy-saving, simple and feasible advanced sewage treatment device.
Disclosure of Invention
The invention provides a backwater well type rural sewage back-osmosis treatment device and method for overcoming the defects of the technical problems.
The invention relates to a backwater well type rural sewage back-osmosis treatment device, which is characterized in that: the water distribution device comprises a big barrel, small barrels, a water inlet pipe, an overflow pipe, a water distribution plate and a water distribution pipe, wherein the upper ends of the big barrel and the small barrels are both opened, the small barrels are arranged in the big barrel, one side of the upper end of the big barrel is connected with the water inlet pipe, and the other side of the upper end of the big barrel is connected with the overflow pipe; the water distribution plate is fixed at the lower part of the cavity in the small barrel, a water distribution cavity is formed between the water distribution plate and the bottom of the small barrel, and a filtering filler is filled in the inner cavity of the small barrel above the water distribution plate; the lower end of the water distribution pipe penetrates through the water distribution plate and extends into the water distribution cavity, the upper end of the water distribution pipe is communicated with the water inlet pipe, the water distribution plate is provided with water distribution holes which enable sewage in the water distribution cavity to flow into the filter filler, and the bottom wall and the side wall of the vat are both provided with water seepage holes which enable the treated sewage to extend into the soil.
According to the return water well type rural sewage back-osmosis treatment device, the aperture of the water distribution holes in the water distribution plate is smaller than the particle size of the filter filler.
According to the return water well type rural sewage rewet treatment device, when the nitrogen element and the phosphorus element of rural domestic sewage entering from the water inlet pipe reach the standard, the filtering filler is ceramsite and/or stone sand; when the nitrogen element and the phosphorus element of the rural domestic sewage entering from the water inlet pipe do not reach the standard, the filtering filler is a uniform mixture of pyrite particles and limestone particles.
According to the return well type rural sewage back-osmosis treatment device, the height of the overflow pipe is lower than that of the water inlet pipe.
According to the return water well type rural sewage back-osmosis treatment device, the water distribution pipe is L-shaped, and the upper end of the water distribution pipe is connected with the water inlet pipe through the connecting flange which is convenient to disassemble and assemble.
According to the return well type rural sewage back-infiltration treatment device, the bottom wall of the cavity in the large barrel is fixedly provided with the supporting plate, and the small barrel is fixedly arranged on the supporting plate.
According to the return water well type rural sewage back-infiltration treatment device, the diameter of the infiltration hole formed in the large barrel is 1-3 cm.
According to the return water well type rural sewage return infiltration treatment device, a layer of filling stone which prevents the soil from blocking the infiltration holes is filled between the outer wall of the large barrel and the soil.
The treatment method of the backwater well type rural sewage back-osmosis treatment device is characterized by comprising the following steps of:
a) selecting and loading fillers, wherein when the nitrogen and phosphorus elements in the domestic sewage to be treated reach the standard, the filter fillers are selected from ceramsite and/or stone sand particles, and when the nitrogen and phosphorus elements in the domestic sewage do not reach the standard, the fillers are selected from uniform mixtures of pyrite particles and limestone particles; filling the selected filter filler into the small bucket; b) burying the treatment device, firstly digging a sinking pit for accommodating the big barrel on the land at a proper position, paving a side stone block at the bottom of the sinking pit, then putting the big barrel into the sinking pit, and ensuring that the water inlet pipe and the overflow pipe are positioned above the ground; then a layer of stone blocks are buried around the vat, finally the water inlet pipe is communicated with the domestic sewage pipe, and the overflow pipe is communicated with the drainage ditch, the river or the pond, so that the burying of the sewage treatment device is realized; c) filtering the sewage, wherein the sewage to be treated flows into the water distribution cavity through the water inlet pipe and the water distribution pipe in sequence, and then flows through the filtering filler uniformly under the uniform dispersion action of the water distribution holes on the water distribution plate; the filtration filler realizes the interception and filtration of suspended particles in the sewage; d) purifying the sewage, and simultaneously absorbing or converting nitrogen and phosphorus elements in the sewage into phosphate radical ion forms by microorganisms breeding in the filter filler according to the growth requirements of the microorganisms, wherein the generated phosphate can react with iron ions and calcium ions to generate phosphate precipitates and be adsorbed in the original filler, so that the sewage is purified; e) the sewage is filtered and purified by the filler and then flows into the big barrel through the upper end opening of the small barrel; when flowing down along the cylinder wall of the small bucket, water can be fully contacted with air, and at the moment, the dissolved oxygen in the water can be increased preliminarily, so that the water quality is better; water slowly permeates into the ground through the water seepage holes on the big barrel and enters the natural environment, and is directly used by animals and plants in the environment; when the water infiltration rate is less than the water inflow rate, water may be directly discharged into a drainage ditch, a river, or a pond through the overflow pipe.
The invention has the beneficial effects that: according to the rural domestic sewage treatment device and method, the small barrel is arranged in the big barrel, the water distribution plate and the filter filler are arranged in the small barrel, and the water seepage holes are formed in the outer wall of the big barrel, so that domestic sewage to be treated is filtered by the filler, removal of suspended particles and solid small particles in the sewage is realized, and microorganisms bred in the filler can absorb nitrogen and phosphorus elements in the sewage, so that removal of nitrogen and phosphorus elements in the sewage is realized; the treated sewage flows into the soil through the water seepage holes on the vat, so that the sewage is caused to seep back to the underground and enters the natural environment, and is directly used by animals and plants in the environment, thereby realizing the treatment of rural domestic sewage and the return seepage of the sewage to the underground for recycling, and having the advantages of economy, high efficiency, energy conservation and environmental friendliness.
Drawings
FIG. 1 is a schematic structural diagram of a backwater well type rural sewage back-osmosis treatment device of the invention;
FIG. 2 is a schematic diagram of the use of the backwater well type rural sewage back-osmosis treatment device of the invention.
In the figure: the water distribution device comprises a large barrel 1, a small barrel 2, a water inlet pipe 3, an overflow pipe 4, a water distribution plate 5, a water distribution cavity 6, a water distribution pipe 7, a filter filler 8, a water distribution hole 9, a water seepage hole 10, a connecting flange 11, a support plate 12, a domestic sewage pipe 13, a filling stone 14, a land 15 and a drainage ditch 16.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1, a schematic structural diagram of a water-returning well type rural sewage infiltration treatment device of the present invention is provided, which is composed of a vat 1, a keg 2, a water inlet pipe 3, an overflow pipe 4, a water distribution plate 5, a water distribution pipe 7 and a filter filler 8, wherein the upper ends of the vat 1 and the keg 2 are both open, the keg 2 is positioned in the vat 1, the water inlet pipe 3 and the overflow pipe 4 are respectively arranged on both sides of the upper end of the vat 1, and rural domestic sewage to be treated flows in through the water inlet pipe 3; the height of the overflow pipe 4 is slightly lower than that of the water inlet pipe 3, and when the inflow amount of the domestic sewage is too large and the treated sewage is not enough to permeate into the external soil through the water seepage holes 10 on the vat 1, the excessive sewage flows into the drainage ditch 16, a river or a pond through the overflow pipe 4. The keg 2 and the vat 1 are coaxially arranged, a support plate 12 is arranged at the bottom of the vat 1, and the support plate 12 supports the keg 2, so that a certain space distance is reserved between the keg 2 and the bottom wall of the vat 1.
The water distribution plate 5 is fixed at the lower part of the cavity in the small barrel 2, the water distribution plate 5 is in a horizontal state, and a water distribution cavity 6 is formed between the water distribution plate 5 and the bottom wall of the small barrel 2; the water distribution plate 5 is uniformly provided with water distribution holes 9, a cavity of the small bucket 2 above the water distribution plate 5 is filled with filter fillers 8, and in order to prevent the filter fillers 8 from entering the water distribution cavity 6 through the water distribution holes 9, the aperture of the water distribution holes 9 is smaller than the particle size of the filter fillers 8. The upper end of the water distribution pipe 7 is communicated with the water inlet pipe 3, and the lower end of the water distribution pipe 7 passes through the filtering filler 8 and the water distribution plate 5 and then extends into the water distribution cavity 6. Therefore, after the domestic sewage to be treated sequentially enters the water distribution cavity 6 through the water inlet pipe 3 and the water distribution pipe 7, the sewage can uniformly flow through the filter filler 8 through the uniform water distribution effect of the water distribution holes 9 on the water distribution plate 5.
The bottom wall and the side wall of the large barrel 1 are uniformly provided with water seepage holes 10, and after the treated sewage flows out from the upper end opening of the small barrel 2, the sewage can enter the cavity between the small barrel 2 and the large barrel 1 and then seeps out through the water seepage holes 10. The diameter of the water seepage holes 10 is 1-3 cm, preferably 2cm, and the distance between adjacent water seepage holes 10 is preferably 10 cm. During the use, in order to avoid vat 1 outlying earth to enter into vat 1 through infiltration hole 10, the periphery of vat 1 is provided with the one deck and fills stone 14, fills stone 14 and not only keeps apart earth and infiltration hole 10, but also greatly increased sewage from infiltration hole 10 outflow back with the area of contact of soil 15, be favorable to during the sewage after the processing stretches into earth.
The filter filler 8 is selected according to the condition of the sewage to be treated, and when the nitrogen element and the phosphorus element of the rural domestic sewage to be treated reach the standard, the filter filler 8 is ceramsite and/or stone sand; when the ceramsite and/or the stone sand are used for filtering sewage, suspended particles and other solid small particle substances in the sewage can be attached to the fillers to achieve the effect of removing the suspended particles in the sewage, so that the effluent is clearer and more transparent.
When the nitrogen element and the phosphorus element of the rural domestic sewage do not reach the standard, the filter filler 8 is a uniform mixture of pyrite particles and limestone particles; the pyrite particles and the limestone particles need to be uniformly mixed so as to avoid the problem that acid generated after water passes through pyrite cannot be timely treated; the particle size of pyrite is 1 ~ 3mm, if too little easy through water distribution hole 9, if too big then can reduce area of contact and lead to the treatment effect not good, the microorganism of different effects can be bred to this kind of filler, sewage gets into the back, these microorganisms can be through the growth needs of self, absorb or convert into phosphate radical ion form to the nitrogen phosphorus element in the sewage, the phosphate that generates can react with iron ion and calcium ion and generate the phosphate deposit and adsorb in former filler, and reach sewage purification's effect.
As shown in figure 2, the use principle diagram of the water return well type rural sewage back-osmosis treatment device is provided, when in use, the water inlet pipe 3 is communicated with the domestic sewage pipe 13, and the overflow pipe 4 is communicated with the drainage ditch 16, a river or a pond. The method is realized by the following steps:
a) selecting and loading fillers, wherein when the nitrogen and phosphorus elements in the domestic sewage to be treated meet the standard, the filter fillers (8) are selected from ceramsite and/or stone sand particles, and when the nitrogen and phosphorus elements in the domestic sewage do not meet the standard, the fillers are selected from uniform mixtures of pyrite particles and limestone particles; filling the selected filter filler into the keg (2);
b) burying the treatment device, firstly digging a sinking pit for accommodating the big barrel on the land (15) at a proper position, paving a side stone block at the bottom of the sinking pit, then putting the big barrel into the sinking pit, and ensuring that the water inlet pipe (3) and the overflow pipe (4) are positioned above the ground; then a layer of stone is buried around the vat, finally the water inlet pipe is communicated with a domestic sewage pipe (13), and the overflow pipe is communicated with a drainage ditch, a river or a pond, so that the burying of the sewage treatment device is realized;
c) filtering the sewage, wherein the sewage to be treated flows into the water distribution cavity through the water inlet pipe and the water distribution pipe in sequence, and then flows through the filtering filler uniformly under the uniform dispersion action of the water distribution holes on the water distribution plate; the filtration filler realizes the interception and filtration of suspended particles in the sewage;
d) purifying the sewage, and simultaneously absorbing or converting nitrogen and phosphorus elements in the sewage into phosphate radical ion forms by microorganisms breeding in the filter filler according to the growth requirements of the microorganisms, wherein the generated phosphate can react with iron ions and calcium ions to generate phosphate precipitates and be adsorbed in the original filler, so that the sewage is purified;
e) the sewage is filtered and purified by the filler and then flows into the big barrel through the upper end opening of the small barrel; when flowing down along the cylinder wall of the small bucket, water can be fully contacted with air, and at the moment, the dissolved oxygen in the water can be increased preliminarily, so that the water quality is better; water slowly permeates into the ground through the water seepage holes on the big barrel and enters the natural environment, and is directly used by animals and plants in the environment;
when the water infiltration rate is less than the water inflow rate, water may be directly discharged into a drainage ditch, a river, or a pond through the overflow pipe.
The invention relates to a backwater well type rural sewage back-osmosis treatment device and a method, which mainly carry out further advanced treatment on treated water, can also be used for treating common household domestic water and other sewage with light pollution degree, and ensures that the effluent quality is better and more confident to be discharged into the natural environment.
Claims (6)
1. The utility model provides a rural sewage rewet processing apparatus of return water well formula which characterized in that: the water distribution device comprises a big barrel (1), a small barrel (2), a water inlet pipe (3), an overflow pipe (4), a water distribution plate (5) and a water distribution pipe (7), wherein the upper ends of the big barrel and the small barrel are both opened, the small barrel is arranged in the big barrel, one side of the upper end of the big barrel is connected with the water inlet pipe (3), and the other side of the upper end of the big barrel is connected with the overflow pipe (4); the water distribution plate is fixed at the lower part of the cavity in the small barrel, a water distribution cavity (6) is formed between the water distribution plate and the bottom of the small barrel, and a filtering filler (8) is filled in the inner cavity of the small barrel above the water distribution plate; the lower end of the water distribution pipe penetrates through the water distribution plate and extends into the water distribution cavity, the upper end of the water distribution pipe is communicated with the water inlet pipe, the water distribution plate is provided with water distribution holes (9) which enable sewage in the water distribution cavity to flow into the filter filler, and the bottom wall and the side wall of the vat are both provided with water seepage holes (10) which enable the treated sewage to extend into the soil (15);
the aperture of the water distribution holes (9) on the water distribution plate (5) is smaller than the particle size of the filter filler (8);
when the nitrogen element and the phosphorus element of the rural domestic sewage entering from the water inlet pipe (3) reach the standard, the filtering filler (8) is ceramsite and/or stone sand; when the nitrogen element and the phosphorus element of the rural domestic sewage entering from the water inlet pipe do not reach the standard, the filtering filler is a uniform mixture of pyrite particles and limestone particles;
a layer of filling stone (14) for preventing soil from blocking the seepage holes (10) is filled between the outer wall of the large barrel (1) and the land (15).
2. The return water well type rural sewage back-osmosis treatment device of claim 1, characterized in that: the height of the overflow pipe (4) is lower than that of the water inlet pipe (3).
3. The return water well type rural sewage rewet treatment device of claim 1 or 2, characterized in that: the water distribution pipe (7) is L-shaped, and the upper end of the water distribution pipe is connected with the water inlet pipe (3) through a connecting flange (11) which is convenient to disassemble and assemble.
4. The return water well type rural sewage rewet treatment device of claim 1 or 2, characterized in that: a supporting plate (12) is fixed on the bottom wall of the cavity in the big barrel (1), and the small barrel (2) is fixed on the supporting plate.
5. The return water well type rural sewage rewet treatment device of claim 1 or 2, characterized in that: the diameter of the water seepage hole (10) formed in the big barrel (1) is 1-3 cm.
6. The treatment method of the backwater well type rural sewage back-osmosis treatment device based on the claim 1 is characterized by comprising the following steps:
a) selecting and loading fillers, wherein when the nitrogen and phosphorus elements in the domestic sewage to be treated meet the standard, the filter fillers (8) are selected from ceramsite and/or stone sand particles, and when the nitrogen and phosphorus elements in the domestic sewage do not meet the standard, the filter fillers are selected from uniform mixtures of pyrite particles and limestone particles; filling the selected filter filler into the keg (2);
b) burying the treatment device, firstly digging a sinking pit for accommodating the big barrel on the land (15) at a proper position, paving a side stone block at the bottom of the sinking pit, then putting the big barrel into the sinking pit, and ensuring that the water inlet pipe (3) and the overflow pipe (4) are positioned above the ground; then a layer of stone is buried around the vat, finally the water inlet pipe is communicated with a domestic sewage pipe (13), and the overflow pipe is communicated with a drainage ditch, a river or a pond, so that the burying of the sewage treatment device is realized;
c) filtering the sewage, wherein the sewage to be treated flows into the water distribution cavity through the water inlet pipe and the water distribution pipe in sequence, and then flows through the filtering filler uniformly under the uniform dispersion action of the water distribution holes on the water distribution plate; the filtration filler realizes the interception and filtration of suspended particles in the sewage;
d) purifying the sewage, wherein nitrogen and phosphorus elements in the sewage are absorbed or converted into phosphate radical ion forms by microorganisms breeding in the filter filler according to the growth requirements of the microorganisms, and the generated phosphate reacts with iron ions and calcium ions to generate phosphate precipitates which are absorbed in the original filler, so that the sewage is purified;
e) the sewage is filtered and purified by the filler and then flows into the big barrel through the upper end opening of the small barrel; when flowing down along the cylinder wall of the small bucket, water can be fully contacted with air, and at the moment, the dissolved oxygen in the water can be increased preliminarily, so that the water quality is better; water slowly permeates into the ground through the water seepage holes on the big barrel and enters the natural environment, and is directly used by animals and plants in the environment;
when the water infiltration rate is less than the water inflow rate, the water is directly discharged into a drainage ditch, a river or a pond through the overflow pipe.
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| CN110741899B (en) * | 2019-10-22 | 2021-04-13 | 云南省农业科学院农业环境资源研究所 | Slope farmland construction method for capturing cyclic utilization of nitrogen and phosphorus |
| CN111484207A (en) * | 2020-05-18 | 2020-08-04 | 北京工业大学 | Device for treating dispersed sewage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102001743A (en) * | 2010-09-30 | 2011-04-06 | 青岛理工新环境技术开发有限公司 | Sewage aerobic land treatment system |
| CN105174472A (en) * | 2015-09-17 | 2015-12-23 | 北京市农林科学院 | Kitchen sewage treatment device |
| CN207047995U (en) * | 2017-06-12 | 2018-02-27 | 重庆交通大学 | A kind of rainwater treatment device and sewerage system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001743A (en) * | 2010-09-30 | 2011-04-06 | 青岛理工新环境技术开发有限公司 | Sewage aerobic land treatment system |
| CN105174472A (en) * | 2015-09-17 | 2015-12-23 | 北京市农林科学院 | Kitchen sewage treatment device |
| CN207047995U (en) * | 2017-06-12 | 2018-02-27 | 重庆交通大学 | A kind of rainwater treatment device and sewerage system |
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