CN101249999A - Decentralized type sewage and sludge biochemical treatment system - Google Patents
Decentralized type sewage and sludge biochemical treatment system Download PDFInfo
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- CN101249999A CN101249999A CNA2007101914927A CN200710191492A CN101249999A CN 101249999 A CN101249999 A CN 101249999A CN A2007101914927 A CNA2007101914927 A CN A2007101914927A CN 200710191492 A CN200710191492 A CN 200710191492A CN 101249999 A CN101249999 A CN 101249999A
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
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Abstract
The invention relates to a system for decentralized sewage and sludge biochemical treatment, which comprises a biochemical filtering bed for biochemical treatment for sewage and a sedimentation regulating tank connected with a sewage source, water distribution tubes are arranged on the surface of the biochemical filtering bed and connected with a water pump in the sedimentation regulating tank via a main water distribution tube, a sludge filtering bed is arranged near the sedimentation regulating tank which is provided with a sludge pump, the sludge pump is connected with the sludge bed via tubes, wherein grading of filler in the basement of biochemical filtering bed is reasonable, the filtering bed is fine in water permeability and microbiological survival environment, high in efficiency of sewage processing, and can avoid blocking and crusting, thereby the filtering bed is beneficial to long-term usage, as the drying stabilizing treatment on the sludge in the sedimentation regulating tank is achieved by the sludge filtering bed, pollution to others water source can be avoided, further as the sludge accumulating to a certain amount in the sludge filtering bed, one-time cleaning can be achieved and resourced utilization can be realized, thereby reducing the processing cost.
Description
Technical field
The present invention relates to a kind of decentralized type sewage and sludge biochemical treatment system.
Background technology
European patent document publication number EP0976683 and EP1180499 disclose a kind of Sewage treatment systems, its treating processes is: the aqeous suspension that will contain mud etc. is that sewage directly pours in the pond with sealing bottom, sewage in this pond the suspended layer that is implanted with reed and layer of displacement after discharge from the bottom.
American documentation literature publication number US4678582A1 discloses a kind of Sewage treatment systems, its treating processes is: sewage directly is filled on the filtering layer that is made of peat and mixing with soil, this filtering layer bottom has the sealing bottom of inclination, and the low side of sealing bottom is provided with sandy gravel stratum; Flow to the low side of sealing bottom after sewage filters through filtering layer, discharge from sandy gravel stratum at last.
Chinese patent literature publication number CN1138559 discloses a kind of method of treatment of waste water in wet fields for planting xylophyta, be on artificial swamp, to dig dark 0.7-1.2m to make cement pit, around reaching, the cement pit bottom spreads the highly dense rubber sheet of one deck, repave one deck chad, one deck microlith gravel at the bottom of the pond, implant the xylophytas such as Chi Shan of handling then.
A kind of sewage ecological treatment system that Chinese patent literature publication number CN1445170 discloses a kind of ecological wastewater processing device and matched.
Above-mentioned weak point of the prior art is: directly sewage is carried out biochemical treatment, cause the suspended substance in the filter tank just can stop up the filter tank within a certain period of time, the filtering layer of biochemical filter bed easily takes place to stop up and harden, and has influenced the water passing capacity and the work-ing life in single filter tank greatly; Intestinal bacteria), and nitrogen, phosphorus content height simultaneously, there is a large amount of anaerobic reactions in filter tank bottom, makes existence in the water a large amount of biogas, hydrogen sulfide and each bacterioid (for example:, thereby influenced the water quality of water outlet greatly.In addition, mud is not carried out suitable biochemical treatment in the above-mentioned prior art, easily cause mud that other water sources are polluted.
Chinese patent literature publication number CN1644514 discloses the method for a kind of hydrolysis-contact stabilization-stereo ecological soil treatment system purification sewage, be a kind of handle town domestic sewage and can be biochemical, the method for adsorbable trade effluent; Being to be pre-treatment with hydrolysis-contact stabilization combination process, is the optimum combination technology of advanced treatment with stereo ecological soil treatment system.
The weak point of technique scheme is: sewage often directly pours into filter bed and amount is big, easily damages the layer of plants on filter bed surface, and filtering layer easily takes place to stop up and harden, and cause sewage water filtration insufficient, and work-ing life is shorter; Mud in the hydrolytic tank needs regularly to extract out, and water-content height in the mud of extracting out, mud is carried out mud concentrates and the cost of dehydration is higher, is unfavorable for recycling.
Summary of the invention
Technical problem to be solved by this invention provides a kind of filtration and fully and to mud carries out drying and other treatment, is suitable for life-time service and decentralized type sewage and sludge biochemical treatment system with low cost.
For solving the problems of the technologies described above, decentralized type sewage of the present invention and sludge biochemical treatment system comprise: the biochemical filter bed and the sedimentary adjustive pool that links to each other with sewage source that are used for sewage is carried out biochemical treatment; Biochemical filter bed surface is provided with water distributor, and water distributor is responsible for water pump in the sedimentary adjustive pool by water distribution and is linked to each other; The adjacent of sedimentary adjustive pool is provided with the mud filter bed, is provided with sludge pump in the sedimentary adjustive pool, and sludge pump links to each other with the mud filter bed by pipeline.
In the technique scheme, biochemical filter bed is included in the degree of depth of digging on the face of land and cheats at the biochemical filter bed of 70-90cm, the surface in biochemical filter bed hole is equipped with impervious barrier, and the bottom surface of cheating from biochemical filter bed is provided with particle diameter gravel bed in particle diameter gravel bed first, small particle size gravel bed, the coarse sands layer and second from the bottom to top successively; Be implanted with plant on the biochemical filter bed, its root system is in the thick coarse sands layer of 45-55cm and second in the particle diameter gravel bed in the degree of depth; The bottom surface in biochemical filter bed hole is the inclined-plane, is evenly distributed with many water shoots on this inclined-plane, and the sidewall of water shoot is evenly distributed with perforate, and at least one end of water shoot is connected with the vapor pipe that communicates with ambient atmosphere; An end lower on described inclined-plane is provided with drain header; Described each water shoot links to each other with drain header.
In the technique scheme, a side of described biochemical filter bed is provided with and is used for the second biochemical filter bed that is used alternatingly with biochemical filter bed; The structure of biochemical filter bed and the identical and shared described drain header of structure of the second biochemical filter bed.
In the technique scheme, described many water distributors that link to each other with the water distribution person in charge are set parallel to each other the surface in biochemical filter bed, and its spacing is 2m, and the sidewall of water distributor is evenly distributed with posticum.
In the technique scheme, the particle diameter of the gravel in described first in the particle diameter gravel bed is 8-16mm, the particle diameter of the gravel in the small particle size gravel bed is 4-8mm, and the sand in the coarse sands layer is the no mud coarse sand of 0.2-6mm, and the particle diameter of the gravel in second in the particle diameter gravel bed is 8-16mm.
In the technique scheme, being configured to of described coarse sands layer: the particle diameter of contained sand is 20%～50% less than the ratio of 0.6mm, the particle diameter of contained sand is 35%～90% less than the ratio of 1mm, the particle diameter of contained sand is 65%～100% less than the ratio of 2mm, and the particle diameter of contained sand is 95%～100% less than the ratio of 6mm.
In the technique scheme, the mud filter bed is included in the mud filter bed hole of digging on the face of land, and the surface in mud filter bed hole is equipped with impervious barrier, particle diameter gravel bed, small particle size gravel bed, coarse sands layer and layer of plants from the bottom surface that the mud filter bed is cheated is provided with from the bottom to top successively; Be provided with water shoot in the middle particle diameter gravel bed, the sidewall of water shoot is evenly distributed with perforate; One termination of water shoot has the second exhaust pipe that communicates with ambient atmosphere, and the other end links to each other with the water intake end of the water pump of mud filter bed outside; The water side of water pump is responsible for the water distribution of described biochemical filter bed and is linked to each other.
In the technique scheme, a side of described mud filter bed is symmetrically arranged with the second mud filter bed; Described mud filter bed is identical with the structure of the second mud filter bed.
In the technique scheme, parallelly in the described sedimentary adjustive pool be provided with 3 partitions, and form first pond, second pond, the 3rd pond and the 4th pond successively; Have the water-in that links to each other with sewage source in first pond, described water pump is arranged in the 4th pond; All be provided with sludge pump in first pond, second pond, the 3rd pond and the 4th pond; Each partition is provided with contour water outlet; Each water outlet is provided with the T tube road; The described water outlet place that is higher than in the 4th pond is provided with overflow port.
The present invention has positive effect: in (1) decentralized type sewage of the present invention and the sludge biochemical treatment system, the sewage of extracting out from sedimentary adjustive pool is irritated surface to biochemical filter bed equably through water distributor, protected the layer of plants on biochemical filter bed surface, be beneficial to biochemical filter bed and fully filter sewage; Simultaneously, adopt the mud filter bed that the mud in the sedimentary adjustive pool is carried out the mummification stabilizing treatment, prevent that it from polluting other water sources; Sludge accumulation in the mud filter bed is carried out disposable cleaning and is carried out recycling when a certain amount of; With respect to prior art, among the present invention mud carried out the mummification stabilizing treatment after, its follow-up handling procedure can significantly reduce (as the mummification program), has reduced the cost of the recycling of mud.(2) among the present invention, the surface of groove is equipped with impervious barrier, can prevent the infiltration of sewage to body of groundwater.Biochemical filter bed by particle diameter gravel bed in particle diameter gravel bed, small particle size gravel bed, the coarse sands layer and second in first successively step by step configuration form, and the graduation curve that meets the filter bed matrix fill, and the root system of plant is in the thick coarse sands layer of 45-55cm and second in the particle diameter gravel bed in the degree of depth, make biochemical filter bed water permeability of the present invention good, the efficient height of disposing of sewage, and can prevent that obstruction and filter bed from hardening, and is beneficial to life-time service; In addition, coarse sands layer adopts the coarse sand of 0.2-6mm, has good hydraulic conductivity and microhabital; In layer of sand and first, set up small particle size gravel transition layer together between the particle diameter gravel, can prevent that coarse sands layer from being washed away loss; The bottom surface of groove is the inclined-plane, and a lower end compiles on this inclined-plane to make the water that filters out, and the particle diameter of the gravel in first in the particle diameter gravel bed is 8-16mm, to make things convenient for water to flow out from water outlet, and near the river course directly draining into, need not water pump, be convenient to management and saved cost; In addition, be provided with water shoot in the particle diameter gravel bed in first, water shoot links to each other with the vapor pipe that ambient atmosphere communicates, the sidewall of water shoot is evenly distributed with perforate, thereby the oxygen and the oxygen of foot are evenly distributed to make biochemical filter bed bottom exist, can reduce anaerobic reaction, improved the living environment of aerobic bacteria, make organonitrogen be converted into ammonia nitrogen through ammonification, under aerobic condition, ammonia nitrogen changes nitrate and nitrite into through nitrification, then under the condition of anaerobism and organic carbon source, be reduced to nitrogen through denitrification, discharge into the atmosphere, reach the purpose of final denitrogenation through vapor pipe.Hold reaction enrichment precipitation between main described each layer of P contained compound, thereby realize the effect of dephosphorization.Simultaneously can effectively remove all kinds of unwanted bacterias, further ensure effluent characteristics.At last, the degree of depth in biochemical filter bed hole is 70-90cm, is guaranteeing under the prerequisite of filtration efficiency that the biochemical filter bed cost of this degree of depth is lower.(3) among the present invention, the mummification stabilizing treatment that the mud filter bed can be concentrated mud, and can prevent that mud from polluting other water sources.The biochemical filter bed of the sewage suction that the mud filter bed leaches is further to purify waste water.(4) among the present invention, water distributor has many, and is uniformly distributed in the surface of biochemical filter bed, and the sidewall of water distributor is evenly distributed with posticum, is beneficial to the surface of equably sewage being spilt in biochemical filter bed, has protected layer of plants.(5) among the present invention, the biochemical filter bed and the second biochemical filter bed regularly switch use (for example switching a Monday), so that the function of efficient recovery biochemical reactor to be arranged, can effectively improve the active and matrix adsorptive power of aerobic microbiological; Be not subjected to the water phase, the sludge blanket mummification degraded on filter bed surface, can prevent that biochemical filter bed from stopping up and harden, guarantee secular water outlet effect, prolonged the work-ing life of biochemical filter bed greatly, and can farthest utilize an air reaeration on body upper strata, cause effluent stream to spray by the cloth water pressure simultaneously, to a certain degree play the effect of drop reoxygenation, improve dissolved oxygen content in the sewage, thereby improved the effluent quality for the treatment of water.(6) among the present invention, sedimentary adjustive pool is three form settling tanks, and its interior parallel 3 partitions that are provided with are convenient to abundant precipitating sludge, SS (suspended solids)≤100mg/L.Water outlet on each cuts off is provided with the T tube road, can prevent that floating matter from stopping up described water outlet.
Description of drawings
Fig. 1 is the synoptic diagram of decentralized type sewage of the present invention and sludge biochemical treatment system;
Fig. 2 is the cross-sectional view of Fig. 1 mesophytization filter bed;
Fig. 3 is the cross-sectional view of mud filter bed among Fig. 1;
Fig. 4 is the structural representation of sedimentary adjustive pool among Fig. 1;
Fig. 5 is the structural representation of equally distributed water shoot on the bottom surface in biochemical filter bed hole of the biochemical filter bed and the second biochemical filter bed;
Fig. 6 is the synoptic diagram of the graduation curve of the coarse sands layer in the biochemical filter bed of the present invention.
Embodiment
(embodiment 1)
As Fig. 1, the decentralized type sewage of present embodiment and sludge biochemical treatment system comprise: be used for sewage is carried out the biochemical filter bed A of biochemical treatment and the sedimentary adjustive pool C that with sewage source link to each other adjacent with biochemical filter bed A; Biochemical filter bed A surface is provided with water distributor 7, and water distributor 7 is responsible for 12 by water distribution and is linked to each other with water pump in the sedimentary adjustive pool C; The adjacent of sedimentary adjustive pool C is provided with mud filter bed a, is provided with sludge pump in the sedimentary adjustive pool C, and sludge pump links to each other with mud filter bed a by pipeline.
As Fig. 2, biochemical filter bed A is included in the degree of depth of digging on the face of land and cheats at the biochemical filter bed of 80cm (other embodiment are 70cm or 90cm), the surface in biochemical filter bed hole is equipped with impervious barrier 1, and the bottom surface of cheating from biochemical filter bed is provided with particle diameter gravel bed 5 in particle diameter gravel bed 2 first, small particle size gravel bed 3, the coarse sands layer 4 and second from the bottom to top successively; Be implanted with plant on the biochemical filter bed A, its root system is in the thick coarse sands layer 4 and second of 50cm (other embodiment are 45cm or 55cm) in the particle diameter gravel bed 5 in the degree of depth; The bottom surface in biochemical filter bed hole is the inclined-plane, is evenly distributed with many water shoots 8 (being generally the 3-10 root) on this inclined-plane, and the sidewall of water shoot 8 is evenly distributed with perforate, and at least one end of water shoot 8 is connected with the vapor pipe 9 that communicates with ambient atmosphere; An end lower on described inclined-plane is provided with drain header 6; Described each water shoot 8 links to each other with drain header 6.
The degree of depth is the biochemical filter bed hole of 80cm, existing high filtration efficiency, and cost is lower.If the degree of depth in biochemical filter bed hole is less than 70cm, and then the efficient of sewage water filtration will obviously reduce; And if greater than 90cm, then the efficiency change of sewage water filtration is little, but cost will significantly improve.
Described plant is dark root reed, plants that the root system degree of depth can reach 50cm after 1 year, and is dispersed throughout in described coarse sands layer 4 and second in the particle diameter gravel bed 5.During actually operating, this reed is not gathered in winter, and gathers in when spring and summer, makes it play coldproof function on biochemical filter bed surface, alleviates temperature and descends to the influence as the biochemical reaction function of the biochemical filter bed of biochemical reactor.
As Fig. 5, the bottom surface of groove is the inclined-plane, makes water in each water shoot 8 flow to the drain header 6 of the lower end in this inclined-plane, thereby directly drains among the river course R that links to each other with drain header 6, need not water pump.
Described and water distribution are responsible for the 12 many water distributors 7 that link to each other (being generally the 3-5 root) and are set parallel to each other in the surface of biochemical filter bed A, and its spacing is 2m, and the sidewall of water distributor 7 is evenly distributed with posticum.
As Fig. 2, the particle diameter of the gravel in described first in the particle diameter gravel bed is 8-16mm, and the particle diameter of the gravel in the small particle size gravel bed is 4-8mm, and the sand in the coarse sands layer is the no mud coarse sand of 0.2-6mm, and the particle diameter of the gravel in second in the particle diameter gravel bed is 8-16mm.
As Fig. 6, being configured to of described coarse sands layer 4: the particle diameter of contained sand is 20%～50% less than the ratio of 0.6mm, the particle diameter of contained sand is 35%～90% less than the ratio of 1mm, the particle diameter of contained sand is 65%～100% less than the ratio of 2mm, and the particle diameter of contained sand is 95%～100% less than the ratio of 6mm.Facts have proved that the coarse sands layer 4 that meets this configuration has good water-permeable and microorganism living environment, the sewage treating efficiency height can prevent to stop up and filter bed hardens, and is beneficial to biochemical filter bed life-time service.
As concrete embodiment, the specific configuration of described coarse sands layer 4 is: the particle diameter of contained sand is 25% less than the ratio of 0.6mm, the particle diameter of contained sand is 40% less than the ratio of 1mm, and the particle diameter of contained sand is 70% less than the ratio of 2mm, and the particle diameter of contained sand is 98% less than the ratio of 6mm.
As Fig. 1 and 3, mud filter bed a is included in the mud filter bed hole of digging on the face of land, and the surface in mud filter bed hole is equipped with impervious barrier, particle diameter gravel bed, small particle size gravel bed, coarse sands layer and layer of plants from the bottom surface that the mud filter bed is cheated is provided with from the bottom to top successively; Be provided with water shoot 10 in the middle particle diameter gravel bed, the sidewall of water shoot 10 is evenly distributed with perforate; One termination of water shoot 10 has the second exhaust pipe 11 that communicates with ambient atmosphere, and the other end links to each other with the water intake end of the water pump of mud filter bed a outside; The water side of water pump is responsible for 12 with the water distribution of described biochemical filter bed A and is linked to each other.
As Fig. 1,2 and 5, the side of described biochemical filter bed A is provided with and is used for the second biochemical filter bed B that is used alternatingly with biochemical filter bed A; The structure of biochemical filter bed A and the identical and shared described drain header 6 of structure of the second biochemical filter bed B.
As Fig. 1, the side of described mud filter bed a is symmetrically arranged with the second mud filter bed b; Described mud filter bed a is identical with the structure of the second mud filter bed b.
A plurality of biochemical filter beds and mud filter bed are used alternatingly, and alternately can recover the function of the bio-reactor of each biochemical filter bed, so that the function of efficient recovery biochemical reactor to be arranged, can effectively improve the active and matrix adsorptive power of aerobic microbiological; Be not subjected to the water phase, the sludge blanket mummification degraded on filter bed surface, can prevent that biochemical filter bed from stopping up and harden, guarantee secular water outlet effect, prolonged the work-ing life of biochemical filter bed greatly, and can farthest utilize an air reaeration on body upper strata, cause effluent stream to spray by the cloth water pressure simultaneously, to a certain degree play the effect of drop reoxygenation, improve dissolved oxygen content in the sewage, thereby improved the effluent quality for the treatment of water.
As Fig. 4, parallelly in the described sedimentary adjustive pool C be provided with 3 and cut off 14, and form the first pond C1, the second pond C2, the 3rd pond C3 and the 4th pond C4 successively; Have the water-in 17 that links to each other with sewage source in the first pond C1, described water pump is arranged in the 4th pond C4; All be provided with sludge pump in the first pond C1, the second pond C2, the 3rd pond C3 and the 4th pond C4; Each partition is provided with contour water outlet 13; Each water outlet is provided with T tube road 15; Described water outlet 13 places that are higher than in the 4th pond C4 are provided with overflow port 16.
The port in ambient atmosphere of the vapor pipe that links to each other with water shoot is provided with air-blast device, is convenient to more air is poured in the biochemical filter bed, is beneficial to the quality of further raising water outlet.
Multilayered structure among the biochemical filter bed A provides a very adapt circumstance for microbial bacterial, organonitrogen is converted into ammonia nitrogen through ammonification, under aerobic condition, ammonia nitrogen changes nitrate and nitrite into through nitrification, then under the condition of anaerobism and organic carbon source, be reduced to nitrogen through denitrification, discharge into the atmosphere, reach the purpose of final denitrogenation; P contained compound is removed from sewage through reaction enrichment precipitation.In the sewage infitration process, each grains of sand is aerobic, an anaerobic reaction micro unit in the coarse sands layer 4, is beneficial to the biochemical degradation precipitation, reduces Pollutant levels, finally realizes until qualified discharge.
Evidence, the decentralized type sewage of present embodiment and sludge biochemical treatment system have the good treatment effect, and CODcr water outlet mean concns reaches 14.3mg/l, and average removal rate reaches 95%; The SS mean concns reaches 13mg/l, and clearance reaches 85%; Ammonia nitrogen concentration reaches 4.5mg/l, and clearance reaches 93%; The total phosphorus mean concns is 0.92mg/l, and clearance reaches 86%; Comprehensive effluent quality reaches urban wastewater treatment firm first grade discharging B standard (estimating according to GB18918-2002).
Claims (9)
1, a kind of decentralized type sewage and sludge biochemical treatment system comprise: the biochemical filter bed (A) and the sedimentary adjustive pool that links to each other with sewage source (C) that are used for sewage is carried out biochemical treatment; It is characterized in that: biochemical filter bed (A) surface is provided with water distributor (7), and water distributor (7) is responsible for the interior water pump of (12) and sedimentary adjustive pool (C) by water distribution and is linked to each other; The adjacent of sedimentary adjustive pool (C) is provided with mud filter bed (a), is provided with sludge pump in the sedimentary adjustive pool (C), and sludge pump links to each other with mud filter bed (a) by pipeline.
2, decentralized type sewage according to claim 1 and sludge biochemical treatment system, it is characterized in that: biochemical filter bed (A) is included in the degree of depth of digging on the face of land and cheats at the biochemical filter bed of 70-90cm, the surface in biochemical filter bed hole is equipped with impervious barrier (1), and the bottom surface of cheating from biochemical filter bed is provided with particle diameter gravel bed (5) in particle diameter gravel bed (2) first, small particle size gravel bed (3), the coarse sands layer (4) and second from the bottom to top successively; Be implanted with plant on the biochemical filter bed (A), its root system is in the thick coarse sands layer of 45-55cm (4) and second in the particle diameter gravel bed (5) in the degree of depth; The bottom surface in biochemical filter bed hole is the inclined-plane, is evenly distributed with many water shoots (8) on this inclined-plane, and the sidewall of water shoot (8) is evenly distributed with perforate, and at least one end of water shoot (8) is connected with the vapor pipe (9) that communicates with ambient atmosphere; A lower end is provided with drain header (6) on described inclined-plane; Described each water shoot (8) links to each other with drain header (6).
3, decentralized type sewage according to claim 2 and sludge biochemical treatment system is characterized in that: a side of described biochemical filter bed (A) is provided with and is used for the second biochemical filter bed (B) that is used alternatingly with biochemical filter bed (A); The structure of biochemical filter bed (A) and the identical and shared described drain header (6) of structure of the second biochemical filter bed (B).
4, according to described decentralized type sewage of one of claim 1-3 and sludge biochemical treatment system, it is characterized in that: the described many water distributors (7) that link to each other with the water distribution person in charge (12) are set parallel to each other in the surface of biochemical filter bed (A), its spacing is 2m, and the sidewall of water distributor (7) is evenly distributed with posticum.
5, according to described decentralized type sewage of one of claim 1-3 and sludge biochemical treatment system, it is characterized in that: the particle diameter of the gravel in described first in the particle diameter gravel bed (2) is 8-16mm, the particle diameter of the gravel in the small particle size gravel bed (3) is 4-8mm, sand in the coarse sands layer (4) is the no mud coarse sand of 0.2-6mm, and the particle diameter that presses and smooth stone in second in the particle diameter gravel bed (5) is 8-16mm.
6, decentralized type sewage according to claim 5 and sludge biochemical treatment system, it is characterized in that: being configured to of described coarse sands layer (4): the particle diameter of contained sand is 20%～50% less than the ratio of 0.6mm, the particle diameter of contained sand is 35%～90% less than the ratio of 1mm, the particle diameter of contained sand is 65%～100% less than the ratio of 2mm, and the particle diameter of contained sand is 95%～100% less than the ratio of 6mm.
7, decentralized type sewage according to claim 1 and sludge biochemical treatment system, it is characterized in that: mud filter bed (a) is included in the mud filter bed hole of digging on the face of land, the surface in mud filter bed hole is equipped with impervious barrier, particle diameter gravel bed, small particle size gravel bed, coarse sands layer and layer of plants from the bottom surface that the mud filter bed is cheated is provided with from the bottom to top successively; Be provided with water shoot (10) in the middle particle diameter gravel bed, the sidewall of water shoot (10) is evenly distributed with perforate; One termination of water shoot (10) has the second exhaust pipe (11) that communicates with ambient atmosphere, and the other end links to each other with the water intake end of the water pump of mud filter bed (a) outside; The water side of water pump is responsible for (12) with the water distribution of described biochemical filter bed (A) and is linked to each other.
8, decentralized type sewage according to claim 6 and sludge biochemical treatment system is characterized in that: a side of described mud filter bed (a) is symmetrically arranged with the second mud filter bed (b); Described mud filter bed (a) is identical with the structure of the second mud filter bed (b).
9, decentralized type sewage according to claim 1 and sludge biochemical treatment system, it is characterized in that: parallelly in the described sedimentary adjustive pool (C) be provided with 3 partitions (14), and form first pond (C1), second pond (C2), the 3rd pond (C3) and the 4th pond (C4) successively; Have the water-in (17) that links to each other with sewage source in first pond (C1), described water pump is arranged in the 4th pond (C4); All be provided with sludge pump in first pond (C1), second pond (C2), the 3rd pond (C3) and the 4th pond (C4); Each partition is provided with contour water outlet (13); Each water outlet is provided with T tube road (15); The described water outlet (13) that is higher than in the 4th pond (C4) locates to be provided with overflow port (16).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905944A (en) * | 2010-08-24 | 2010-12-08 | 北京特兰斯福生态环境科技发展有限公司 | Composite-type sewage sludge treatment system for artificial wetland |
| CN106396264A (en) * | 2016-10-13 | 2017-02-15 | 华中科技大学 | Artificial wetland sewage treatment system capable of preventing blockage |
| CN106865697A (en) * | 2015-12-11 | 2017-06-20 | 青岛经济技术开发区海尔热水器有限公司 | A kind of water purification ormolu particle and preparation method thereof and water purification filtrate |
| CN107662981A (en) * | 2017-11-13 | 2018-02-06 | 苏州德华生态环境科技股份有限公司 | A kind of retention wet land system for river regulation |
| CN109516542A (en) * | 2017-09-16 | 2019-03-26 | 宏祥新材料股份有限公司 | Biochemical wastewater treatment system |
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2007
- 2007-12-21 CN CN200710191492A patent/CN100584773C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905944A (en) * | 2010-08-24 | 2010-12-08 | 北京特兰斯福生态环境科技发展有限公司 | Composite-type sewage sludge treatment system for artificial wetland |
| CN106865697A (en) * | 2015-12-11 | 2017-06-20 | 青岛经济技术开发区海尔热水器有限公司 | A kind of water purification ormolu particle and preparation method thereof and water purification filtrate |
| CN106865697B (en) * | 2015-12-11 | 2019-11-05 | 青岛经济技术开发区海尔热水器有限公司 | A kind of water purification ormolu particle and preparation method thereof and water purification filtrate |
| CN106396264A (en) * | 2016-10-13 | 2017-02-15 | 华中科技大学 | Artificial wetland sewage treatment system capable of preventing blockage |
| CN109516542A (en) * | 2017-09-16 | 2019-03-26 | 宏祥新材料股份有限公司 | Biochemical wastewater treatment system |
| CN107662981A (en) * | 2017-11-13 | 2018-02-06 | 苏州德华生态环境科技股份有限公司 | A kind of retention wet land system for river regulation |
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