CN103771660A - Rural domestic sewage treatment system - Google Patents
Rural domestic sewage treatment system Download PDFInfo
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- CN103771660A CN103771660A CN201410018196.7A CN201410018196A CN103771660A CN 103771660 A CN103771660 A CN 103771660A CN 201410018196 A CN201410018196 A CN 201410018196A CN 103771660 A CN103771660 A CN 103771660A
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Abstract
The invention provides a rural domestic sewage treatment system. The rural domestic sewage treatment system comprises a reaction tank, a water-feeding driving type biological rotating disc, an absorbing and filtering device and an ultraviolet sterilization device, wherein the water-feeding driving type biological rotating disc comprises a plurality of disc pieces; each disc piece comprises a framework and a biological film carrier covering on the framework; a plurality of water feeding grooves are formed in the periphery of the disc piece and are containers with opened top surfaces; the water-feeding driving type biological rotating disc is erected above the reaction tank by a rotary shaft, and the lower part of the disc piece is positioned in the reaction tank all the time; a water feeding pipeline connected with a sewage source is provided with a plurality of water feeding pipes; pipe openings of the plurality of water feeding pipes are respectively formed in the positions in the water feeding grooves through which water can be injected into one disc piece; a water outlet of the reaction tank is connected with a water discharging pipe by an absorbing and filtering device; the ultraviolet sterilization device is arranged on the water discharging pipe. The rural domestic sewage treatment system provided by the invention has the advantages that the water-feeding driving type biological rotating disc realizes rotation by means of water feeding, so that the use of local materials is achieved and the cost is low; the effect of treating the rural domestic sewage is good and the quality of the discharged water can meet the recycling standard completely.
Description
Technical field
The invention belongs to water-treatment technology field, especially a kind of rural domestic sewage treatment system.
Background technology
Along with improving constantly of life of farmers level, Rural areas resident living water amount increases day by day, and quantity of wastewater effluent constantly increases.As can not get effective improvement, by severe exacerbation Rural Water Environment, and affect urban residents' quality of life.At present, conventional technology for treating domestic sewage in rural area mainly contains: anaerobic biogas generating pit, artificial swamp, stabilization pond and land percolation system etc.Wherein anaerobic biogas generating pit is processed domestic sewage in rural areas by using, and effluent quality can reach emission standard, and can produce the fertilizer that is suitable for agriculture production.Stabilization pond is to make sewage in nature or sluggish flow, storage in pond artificial reconstructed or that manually build, by the Metabolic activity of microorganism, and the organic pollutant in degradation of sewage, thus sewage is purified.Artificial swamp mainly, by the microorganism in ecological treatment system and the synergy of waterplant, is realized the removal of pollutent.Land percolation system is that sewage is imposed on soil, utilizes the detergent power of soil that sewage is purified; The cleaning action of soil mainly comprises filtration, the absorption in physical process, the organic matter degradation under chemical reaction and chemical precipitation and microbial metabolism effect etc.Above technology, in the time processing domestic sewage in rural areas by using, all can obtain good treatment effect; But often have the shortcomings such as floor space is large, processing efficiency is low, after processing, water outlet does not reach the standard of reuse.And traditional activated sludge process and biomembrance process etc. be processing when domestic sewage in rural areas by using, capital construction and running cost are again higher than techniques such as artificial swamp, stabilization pond, land percolations, and after processing, water outlet does not reach the standard of reuse yet.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the invention provides a kind of rural domestic sewage treatment system.
The technical solution adopted in the present invention is as follows:
A kind of rural domestic sewage treatment system, comprise reaction tank, intake driving blodisc, adsorption filtration device and ultraviolet sterilization device, it is characterized in that, the driving blodisc of described water inlet comprises multiple discs, disc is made up of skeleton and the biofilm carrier covering on skeleton, the circumference of disc is provided with multiple inlet flumes, and described inlet flume is end face open containers, and the opening direction of described multiple inlet flumes is identical; The driving blodisc of described water inlet is erected at reaction tank top by rotating shaft, and the bottom of described disc is positioned at reaction tank all the time; On the suction culvert being connected with source of sewage, there are multiple water inlet pipes, the mouth of pipe of multiple water inlet pipes lays respectively at the position that water can be injected to an inlet flume on disc, reaction tank water outlet is located at a side relative with water-in, the water outlet of reaction tank is connected with rising pipe through adsorption filtration device, and described ultraviolet sterilization device is arranged on rising pipe.
Preferably, described adsorption filtration device comprises the cylindrical vessel of top water inlet, bottom water outlet, and is arranged in cylindrical vessel and the second filter mesh layer setting gradually from top to bottom, active carbon layer, the first filter mesh layer, yellow sand layer.
Preferably, the cylindrical vessel material of described adsorption filtration device is glass, plastics or timber, and diameter is 300～500mm, is highly 500～700mm; Thickness >=the 1mm of described filter mesh layer, the discarded cotton of employing are made; The thickness of described yellow sand layer is 60～100mm, adopt yellow sand for building; The thickness of described active carbon layer is 90～120mm, the chimney flying dust that adopts biomass burner.
Preferably, the skeleton of described disc adopts timber to make, and is circle or Polygons, and described biofilm carrier selects discarded cotton or waste plastic woven bag to make; Spacing between adjacent disc is 50～60mm, and the area that each disc is dipped in water accounts for 20%～40% of each card total area.
Preferably, described rotating shaft is cylindrical, and material is wooden or stainless steel, and diameter is 30～50mm, the large 40～60mm of length of Length Ratio reaction tank.
Preferably, described rising pipe is transparent plastics tubing or Glass tubing.
Preferably, reaction tank is that thickness is that the Steel Concrete of 20～30mm surrounds, and is semicolumn groove shape, and opening is rectangle, intake half path length 160～240mm of driving blodisc of the radius ratio of described semicolumn; The two ends of described semicolumn groove shape reaction tank are respectively equipped with a bearing, and described bearing is positioned on the axis of described semicolumn.
Preferably, the dead in line of the axis of described rotating shaft and semicolumn groove shape reaction tank.
Preferably, described ultraviolet sterilization device is made up of opaque outer and ultraviolet germicidal lamp.
The principle of work of rural domestic sewage treatment system of the present invention is: the quantity of water-in is identical with the quantity of disc, the corresponding disc of each water-in, and the sewage flowing out from water-in injects the inlet flume each disc.When water inlet impulsive force and inlet flume in the action of gravity of water under, disc continues to rotate, and makes to hang on disc surface biofilm carrier attaching organism film, grows and thicken.In the time that disc is partially immersed in sewage, on its biofilm carrier, microorganism is adsorbed the organism in sewage; When this part of disc leave liquid level, while being exposed in air, the microbial film in disc surface absorbs oxygen organism is oxidized from air.By said process, the organism in reaction tank in sewage reduces, and sewage is purified.Sewage after purification is discharged through water outlet, enter from the top water-in of adsorption filtration device through pipeline, after yellow sand layer, the first filter mesh layer, active carbon layer, the second filter mesh layer absorption, discharge from the bottom posticum of adsorption filtration device, flow into rising pipe, after ultra-violet sterilization, discharge, obtain water quality good, meet the clean water of reusing sewage standard.
The invention has the beneficial effects as follows:
1. the driving blodisc of intaking in rural domestic sewage treatment system of the present invention relies on water inlet to realize rotation, and operation required drive expense is low.
2. rural domestic sewage treatment system, can gather materials on the spot, and uses solid waste from village to make, and as discarded cotton, waste plastic woven bag, chimney flying dust etc., has realized the resource utilization of solid waste, and raw materials cost is low.
3. this rural domestic sewage treatment system is processed the effective of domestic sewage in rural areas by using, and effluent quality can reach the standard of reuse completely.
Accompanying drawing explanation
Fig. 1 is the structural representation of rural domestic sewage treatment system of the present invention;
Fig. 2 is the left view of the driving blodisc of described water inlet while not being installed into tank;
Fig. 3 is the front view of the skeleton of described disc;
Fig. 4 is the vertical view of the skeleton of described disc;
Fig. 5 is the vertical view of described disc;
Fig. 6 is the front view that is installed into the disc of tank;
Fig. 7 is the vertical view of described reaction tank;
Fig. 8 is that the A-A of reaction tank shown in Fig. 7 is to sectional view.
In figure:
1-is batten radially, 2-rotating shaft, and 3-connects batten, 4-biofilm carrier, 5-bearing, 6-reaction tank, 7-disc, 8-inlet flume, 9-cylindrical vessel, 10-yellow sand layer, 11-the first filter mesh layer, 12-active carbon layer, 13-adsorption filtration device posticum, the 14-driving blodisc of intaking, 15-adsorption filtration device, 16-ultraviolet sterilization device, 17-adsorption filtration device water-in, 18-reaction tank water outlet, 19-rising pipe, 20-opaque outer, 21-ultraviolet germicidal lamp, 22-the second filter mesh layer.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
As shown in Figure 1, rural domestic sewage treatment system of the present invention, comprises reaction tank, the driving blodisc of intaking, adsorption filtration device 15 and ultraviolet sterilization device 16.Intake driving blodisc as shown in Figure 2 and Figure 6, be made up of multiple discs 7, disc 7 is made up of skeleton and the biofilm carrier 4 covering on skeleton.The circumference of each disc 7 is provided with multiple inlet flumes 8, and described inlet flume is end face open containers.The driving blodisc 14 of described water inlet is erected at reaction tank top by rotating shaft 2, and the bottom of described disc 7 is positioned at reaction tank all the time.On the suction culvert being connected with source of sewage, there are multiple water inlet pipes, water inlet pipe equates with the quantity of disc 7, the mouth of pipe of multiple water inlet pipes lays respectively at the position that water can be injected to the inlet flume on disc 7, and reaction tank water outlet 18 is located at a side relative with water-in.The water outlet of reaction tank is connected with rising pipe 19 through adsorption filtration device 15, and described ultraviolet sterilization device 16 is arranged on rising pipe 19.
As shown in Figure 7 and Figure 8, reaction tank 6 is Steel Concrete material, is semicolumn groove shape, semicolumn closed at both ends, and wall thickness is 30mm, semicolumn radius ratio is the long 220mm of length of batten 1 radially; On the axis of semicolumn groove shape reaction tank 6, two bearings 5 are set, for rotating shaft 2 is installed.
In rural area for cost-saving, refuse reclamation, the skeleton of described disc 7 adopts timber to make, and as shown in Figure 3, Figure 4, adopts radially batten 1, connects batten 3 and be made for circle or Polygons skeleton.Concrete, get many transverse section and be batten that rectangle and length are identical as batten 1 radially, one end of all radially battens 1 is fixed in rotating shaft 2, and axle center take rotating shaft 2 is dispersed and be positioned to the other end on the circumference in the center of circle to surrounding.All radially battens 1 are positioned at the same plane vertical with rotating shaft 2, and the angle that two adjacent radial battens 1 form is identical.Then adopt the connection batten 3 identical with batten 1 transverse section radially that dispersing of adjacent radially batten 1 held and coupled together, form a Polygons skeleton.
As shown in Figure 5, biofilm carrier 4 is biofilm carrier, selects discarded cotton or waste plastic woven bag to make; Be fixed on the two sides of Polygons skeleton by nail, fix two biofilm carriers 4 for every, just made described disc 7.The hole that a diameter is suitable with rotating shaft 2 diameters is left at the center of biofilm carrier 4, so that rotating shaft 2 is passed through.Described rotating shaft 2 is cylindrical, and material is stainless steel, preferably, and the large 40～60mm of length of the Length Ratio reaction tank of described rotating shaft 2.Multiple discs 7 are all assemblied in rotating shaft 2, and the spacing between adjacent disc 7 is 50-60mm, and the area that each disc 7 is dipped in water accounts for 20%～40% of each card total area.
Described inlet flume 8 is cylindric, and material is wooden, one end sealing, the other end opening.Each that forms skeleton in the disc 7 radially end of dispersing of batten 1 is all installed an inlet flume 8.When installation, connect the inlet flume 8 blind end centers of circle with the medullary ray in the opening end center of circle with radially batten 1 is vertical, and be positioned at the plane at skeleton place; The center of inlet flume 8 is on the extended line of batten 1 radially; The opening direction of all inlet flumes 8 is identical, all in the counterclockwise direction.The installation that inlet flume 8 is dispersed end at batten 1 radially adopts nail.
Described adsorption filtration device 15 comprises cylindrical vessel 9, and is arranged in cylindrical vessel 9 and the second filter mesh layer 22 setting gradually from top to bottom, active carbon layer 12, the first filter mesh layer 11, yellow sand layer 10.Described cylindrical vessel 9 tops are provided with adsorption filtration device water-in 17, bottom adsorption filtration device posticum 13, and material is plastics, and diameter is 500mm, are highly 700mm.The first filter mesh layer 11, the second filter mesh layer 22 can adopt discarded cotton, for example discarded cotton sheet.Described yellow sand layer 10 is made up of yellow sand for building, is highly 80mm; Described active carbon layer 12 is highly 120mm, and optional use comes from the chimney flying dust of biomass burning, and concrete employing electricity process for deashing obtains.Described adsorption filtration device water-in 17 is connected with the water outlet of reaction tank, and described adsorption filtration device posticum 13 is connected with rising pipe 19.Described ultraviolet sterilization device 16 comprises opaque outer 20 and ultraviolet germicidal lamp 21, is arranged on rising pipe 19, and described rising pipe 19 is transparent plastics tubing or Glass tubing.
With said apparatus, change its scantlings of the structure and verify the ability of its sewage disposal.Concrete:
Embodiment mono-
The thickness of skeleton is 12mm; Radially the quantity of batten 1 is 16, and length is 1.2m.The quantity of disc 7 in driving blodisc 14 of intaking is 11, and the spacing of adjacent disc 7 is 60mm.It is 21% of disc 7 total areas that disc 7 is dipped in area in water, and disc 7 rotating speeds are 1r/min.Inlet flume 8 internal diameters are 50mm, high 200mm, wall thickness 4mm.The thickness of described the first filter mesh layer 11, the second filter mesh layer 22 is 2mm, and the thickness of described yellow sand layer 10 is 80mm, and the height of described active carbon layer 12 is 120mm.The irradiation dose of ultraviolet germicidal lamp 21 is 18000 μ Ws/cm
2.
Embodiment bis-
The thickness of skeleton is 8mm; Radially the quantity of batten 1 is 12, and length is 0.7m.The quantity of disc 7 in driving blodisc 14 of intaking is 17, and the spacing of adjacent disc 7 is 50mm.It is 32% of disc 7 total areas that disc 7 is dipped in area in water, and disc 7 rotating speeds are 1.8r/min.Inlet flume 8 internal diameters are 40mm, high 160mm, wall thickness 2mm.The thickness of described the first filter mesh layer 11, the second filter mesh layer 22 is 1.5mm, and the thickness of described yellow sand layer 10 is 65mm, and the thickness of described active carbon layer 12 is 95mm.The irradiation dose of ultraviolet germicidal lamp 21 is 16500 μ Ws/cm
2.
Adopt the rural domestic sewage treatment system of embodiment 1 and embodiment 2 to process domestic sewage in rural areas by using.Influent COD is 325-638mg/L, NH
4 +-N is 66～93mg/L, and SS is 45～196mg/L, and water temperature is 20 ℃ of left and right.The hydraulic detention time of sewage in blodisc is 7h.After this rural domestic sewage treatment system is processed, water outlet COD is 6.7～13.2mg/L, BOD
5be 2.7～5.8mg/L, NH
4 +-N is 1.2～2.6mg/L, and turbidity is less than 3NTU, and coliform does not all detect.Effluent quality meets the standard of middle water reuse completely.
Described embodiment is preferred embodiment of the present invention; but invention is not limited to above-mentioned embodiment; in the situation that not deviating from flesh and blood of the present invention, any apparent improvement, replacement or modification that those skilled in the art can make all belong to protection scope of the present invention.
Claims (8)
1. a rural domestic sewage treatment system, comprise reaction tank (6), the driving blodisc (14) of intaking, adsorption filtration device (15) and ultraviolet sterilization device (16), it is characterized in that, the driving blodisc of described water inlet (14) comprises multiple discs (7), disc (7) is made up of skeleton and the biofilm carrier (4) covering on skeleton, the circumference of disc (7) is provided with multiple inlet flumes (8), described inlet flume (8) is end face open containers, and the opening direction of described multiple inlet flumes (8) is identical; The driving blodisc of described water inlet (14) is erected at reaction tank (6) top by rotating shaft (2), and the bottom of described disc (7) is positioned at reaction tank (6) all the time; On the suction culvert being connected with source of sewage, there are multiple water inlet pipes, the mouth of pipe of multiple water inlet pipes lays respectively at the position that water can be injected to the inlet flume (8) on a disc (7), reaction tank water outlet (18) is located at a side relative with water-in, the water outlet of reaction tank (6) is connected with rising pipe (19) through adsorption filtration device (15), and described ultraviolet sterilization device (16) is arranged on rising pipe (19).
2. rural domestic sewage treatment system according to claim 1, it is characterized in that, described adsorption filtration device (15) comprises the cylindrical vessel (9) of top water inlet, bottom water outlet, and is arranged in cylindrical vessel (9) and the second filter mesh layer setting gradually from top to bottom, active carbon layer (12), the first filter mesh layer (11), yellow sand layer (10).
3. rural domestic sewage treatment system according to claim 2, is characterized in that, cylindrical vessel (9) material of described adsorption filtration device (15) is glass, plastics or timber, and diameter is 300～500mm, is highly 500～700mm; Thickness >=the 1mm of described filter mesh layer, the discarded cotton of employing are made; The thickness of described yellow sand layer (10) is 60～100mm, adopt yellow sand for building; The thickness of described active carbon layer (12) is 90～120mm, the chimney flying dust that adopts biomass burner.
4. rural domestic sewage treatment system according to claim 1, is characterized in that, described rotating shaft (2) is cylindrical, and material is wooden or stainless steel, and diameter is 30～50mm, the large 40～60mm of length of Length Ratio reaction tank (6).
5. rural domestic sewage treatment system according to claim 1, is characterized in that, described rising pipe (19) is transparent plastics tubing or Glass tubing.
6. rural domestic sewage treatment system according to claim 1, it is characterized in that, the Steel Concrete that reaction tank (6) is 20～30mm for thickness surrounds, for semicolumn groove shape, opening is rectangle, intake half path length 160～240mm of driving blodisc (14) of the radius ratio of described semicolumn; The two ends of described semicolumn groove shape reaction tank are respectively equipped with a bearing (5), and described bearing (5) is positioned on the axis of described semicolumn.
7. rural domestic sewage treatment system according to claim 6, is characterized in that, the dead in line of the axis of described rotating shaft (2) and semicolumn groove shape reaction tank.
8. rural domestic sewage treatment system according to claim 1, is characterized in that, described ultraviolet sterilization device (16) is made up of opaque outer (20) and ultraviolet germicidal lamp (20).
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| CN201410018196.7A CN103771660B (en) | 2014-01-16 | 2014-01-16 | A kind of rural domestic sewage treatment system |
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| CN201410018196.7A CN103771660B (en) | 2014-01-16 | 2014-01-16 | A kind of rural domestic sewage treatment system |
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| CN103771660B CN103771660B (en) | 2015-08-26 |
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Cited By (6)
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| CN104150712A (en) * | 2014-08-11 | 2014-11-19 | 安徽浩瀚环保科技有限公司 | Intelligent decentralized domestic sewage eco-friendly treatment device for new countryside |
| CN104193087A (en) * | 2014-07-25 | 2014-12-10 | 浩蓝环保股份有限公司 | Catalytic oxidation slow percolation nitrogen and phosphorus removal device and method |
| CN104355399A (en) * | 2014-11-13 | 2015-02-18 | 东南大学 | Drop-aeration self-driven biological rotating disc |
| CN105948385A (en) * | 2016-05-22 | 2016-09-21 | 中山市捷信科技服务有限公司 | Medical sewage treatment device |
| CN106315894A (en) * | 2016-08-18 | 2017-01-11 | 合肥信诺捷科节能服务有限公司 | Safe filtering device for water supply plant |
| CN109835980A (en) * | 2019-04-03 | 2019-06-04 | 东北大学 | A kind of semi-fixed biological contact oxidation reactor |
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|---|---|
| CN103771660B (en) | 2015-08-26 |
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