CN207330643U - A kind of sewage disposal system - Google Patents

Abstract

The utility model discloses a kind of sewage disposal system, belongs to technical field of sewage, including：Regulating course, positioned at the bottom of sewage disposal system, including regulatory region (1)；Sterilizing layer is precipitated, positioned at the intermediate layer of the sewage disposal system；Biological treatment layer, positioned at the top layer of the sewage disposal system, including biological treatment zone (2)；The exterior sewage of water inlet end access of the regulatory region (1), water outlet is connected with the water inlet end of the biological treatment zone (2)；The water outlet of the biological treatment zone (2) is connected with the water inlet end of the precipitation sterilizing layer.The sewage disposal system of the utility model, pass through rational space layout, the separation of denitrogenation dephosphorizing over time and space is realized, low cost small with floor space, it is stable, high treating effect, excess sludge yield is few, and dewatering is good, and management operating it is simple the advantages that, suitable for land used is nervous, relief is larger and sanitary sewage water and the larger area of variation water quality.

Description

A kind of sewage disposal system

Technical field

It the utility model is related to technical field of sewage, more particularly to a kind of sewage disposal system.

Background technology

Developed rapidly with industrialized so that water environmental problems become increasingly severeer.Water resource continuous in short supply and National " 13 " development construction planning, people have begun to the work that town sewage is administered in concern.Cities and towns (agriculture at present Village) sewage disposal technology mainly has：Power-free multi-stage anaerobism multi-stage ecological treatment system, sewage purifier, anaerobism-artificial swamp Combined treatment technology, stabilization pond etc..

But there are following defect for the prior art：

1. the sewage treatment facility of the prior art is taken up an area, larger, technics comparing is single, it is impossible to the change according to water and water quality Change is flexibly handled.Common treatment tank land area is big, and high energy consumption, noise are big, of high cost, builds difficult.

2. urban wastewater treatment scale is smaller, water quantity and quality less stable, according to traditional handicraft, then a little " big ox is drawn The suspicion of trolley ", investment is excessive, and operating cost is not also low, and is difficult to ensure that the Effec-tive Function for the treatment of facility, and can not adapt to market needs Ask.

It is, thus, sought for a kind of feasible sewage disposal technology based on Small Town Wastewater factory is necessary.

Utility model content

(1) purpose of utility model

The purpose of this utility model is to provide a kind of sewage disposal system, by rational space layout, each part It is spatially independent, different functions is respectively completed, the separation of denitrogenation dephosphorizing over time and space is realized, solves common Treatment tank land area is big, and high energy consumption, noise are big, of high cost, build it is difficult, be not suitable for urban wastewater treatment scale compared with It is small, the problem of water quantity and quality less stable.

(2) technical solution

To solve the above problems, the utility model provides a kind of sewage disposal system, including：Regulating course, positioned at sewage The bottom of processing system, including regulatory region；Biological treatment layer, positioned at the top layer of the sewage disposal system, including biological treatment Area；Sterilizing layer is precipitated, positioned at the intermediate layer of the sewage disposal system；The exterior sewage of water inlet end access of the regulatory region, goes out Water end (W.E.) is connected with the water inlet end of the biological treatment zone；The water outlet of the biological treatment zone and the water inlet of the precipitation sterilizing layer End connection.

Further, the precipitation sterilizing layer includes：Sequentially connected coagulation area, settling zone, filtering cloth filtering pool area and disinfection Area；The water inlet end in the coagulation area is connected with the water outlet of the biological treatment zone；The water outlet of the sterile zones is the dirt The water outlet of water treatment system.

Further, the precipitation sterilizing layer further includes：Dosing area；The dosing area includes multiple chemicals dosing plants, Duo Gejia Teat pipette and air blower；Each chemicals dosing plant connects a dosing pump.

Further, the precipitation sterilizing layer further includes：Drug storage area；The drug storage area is connected with the chemicals dosing plant, is used for Medicament is provided to the chemicals dosing plant.

Further, the precipitation sterilizing layer further includes：Chu Ni areas；The Chu Ni areas are connected by pipeline and the settling zone Connect, for collecting the sludge of the settling zone discharge.

Further, the chemicals dosing plant is connected with the coagulation area and Chu Ni areas respectively by pipeline and the dosing pump, For adding medicament into the coagulation area and Chu Ni areas.

Further, the settling zone is provided with inclined tube or inclined plate, is additionally provided with bucket；The inclined tube is honeycomb inclined-tube, its Section is regular hexagon, and the inscribed circle diameter scope of the regular hexagon is 25~50mm；The bucket by pipeline with it is described Chu Ni areas connect.

Further, the filtering cloth filtering pool area is provided with vertical filtering cloth filtering pool；The vertical filtering cloth filtering pool include fiber filter disc, Collect water conduit tube, mobile suction mud system and mud drainage slot.

Further, the biological treatment zone includes：Anaerobic layer, anoxic layer and the aerobic layer set gradually from the bottom to top； The water inlet end of the anaerobic layer is connected with the water outlet of the regulatory region；Biological rotating disk is set in the aerobic layer, it is described aerobic The water outlet of floor is connected with the water inlet end in the coagulation area；Reflux pump is set between the aerobic layer and anoxic layer.

Further, the regulatory region is provided with grid, immersible pump and boring aeration pipe；The grid is arranged on the tune Save the water inlet end in area；Recess is provided with the regulatory region, the immersible pump is arranged in the recess, for by the adjusting Sewage transport is to the biological treatment zone in area；The boring aeration pipe is arranged on the bottom of the regulatory region.

Further, it is provided with mixer in the coagulation area.

(3) beneficial effect

The above-mentioned technical proposal of the utility model has following beneficial technique effect：

The sewage disposal system of the utility model, to greatest extent using limited space, by regulatory region, biological treatment zone, The rational space layout of the carry out such as coagulation area, settling zone, filtering cloth filtering pool area, sterile zones, each area is spatially independent, is respectively completed not Same function, can be achieved the separation of denitrogenation dephosphorizing over time and space after effectively combining, small with floor space, cost Low, the advantages that stable, high treating effect, excess sludge yield is few, and dewatering is good, and management operating is simple, be applicable in In land used is nervous, relief is larger and sanitary sewage water and the larger area of variation water quality.

Brief description of the drawings

Fig. 1 is the general arrangement plan of sewage disposal system provided by the utility model；

Fig. 2 is the floor plan in sewage disposal system intermediate layer provided by the utility model；

Fig. 3 is the sectional view along the line A-A in Fig. 1；

Fig. 4 is the sectional view along the line B-B in Fig. 1.

Reference numeral：

1st, regulatory region, 11, immersible pump, 12, boring aeration pipe, 13, water pump manhole, 14, cat ladder, 2, biological treatment zone, 21st, biological rotating disk, 3, coagulation area, 31, mixer, 4, settling zone, 41, inclined tube, 42, bucket, 43, dredging tube, 44, water distributor, 45th, effluent weir, 5, filtering cloth filtering pool area, 51, vertical filtering cloth filtering pool, 6, sterile zones, 61, ultraviolet disinfection equipment, 7, dosing area, 71, Chemicals dosing plant, 72, dosing pump, 73, air blower, 8, drug storage area, 9, Chu Ni areas, 91, sludge concentrator.

Embodiment

To make the objectives, technical solutions and advantages of the present invention clearer, with reference to embodiment And referring to the drawings, the utility model is further described.It should be understood that these descriptions are merely illustrative, and do not really want Limit the scope of the utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid not Necessarily obscure the concept of the utility model.

Before a kind of sewage disposal system provided by the utility model is described in detail, term is carried out first and is determined Justice.

PAM：The abbreviation of Polyacrylamide, Chinese are polyacrylamide flocculant, are a kind of organic polymers Flocculant.

PAC：The abbreviation of Polyaluminium Chloride, Chinese are also referred to as aluminium chloride for aluminium polychloride, It is a kind of inorganic polymer coagulant.

Fig. 1 is the general arrangement plan of sewage disposal system provided by the utility model.

Fig. 2 is the floor plan in sewage disposal system intermediate layer provided by the utility model.

Fig. 3 is the sectional view along the line A-A in Fig. 1.

Fig. 4 is the sectional view along the line B-B in Fig. 1.

Fig. 1, Fig. 2 are refer to, the present embodiment provides a kind of sewage disposal system, including regulating course, precipitation sterilizing layer, biology Process layer.

Regulating course is located at the bottom of sewage disposal system, including regulatory region 1, for removing large-sized floating material and suspension Thing, while play the role of uniform water, safeguard subsequent treatment process stable operation.The water inlet end access of regulatory region 1 is exterior dirty Water, water outlet are connected with the water inlet end of biological treatment zone 2.

Biological treatment layer, positioned at the top layer of sewage disposal system, including biological treatment zone 2, by biodegradation, goes Depollution thing, improves nitrification, realizes high-efficient denitrification and dephosphorization and reduces COD of sewage.The water outlet of biological treatment zone 2 and precipitation The water inlet end connection of sterilizing layer.

Sterilizing layer is precipitated, positioned at the intermediate layer of sewage disposal system.Including sequentially connected coagulation area 3, settling zone 4, filter Cloth filter tank area 5 and sterile zones 6；The water inlet end in coagulation area 3 is connected with the water outlet of biological treatment zone 2；The water outlet of sterile zones 6 For the water outlet of sewage disposal system.

The water inlet end that sewage first passes around regulatory region 1 enters regulatory region 1, carries out preliminary treatment.

Fig. 2, Fig. 3 are refer to, regulatory region 1 is provided with grid, immersible pump 11 and boring aeration pipe 12.For convenience of maintenance, Observe, water pump manhole 13 is set on 1 top plate of regulatory region, and sets cat ladder 14.

Grid is arranged on the water inlet end of regulatory region 1, for removing large-sized floating material and suspended matter, to protect immersible pump 11 normal operation, and remove those debris for being unfavorable for subsequent processes as far as possible；Play the role of uniform water, after maintenance Continuous treatment process stable operation.

Optionally, grid includes but not limited to basket type grid.

Recess is provided with regulatory region 1, immersible pump 11 is arranged in recess, for by sewage transport in regulatory region 1 to life Thing treatment region 2.

Boring aeration pipe 12 is arranged on the bottom of regulatory region 1, prevents accumulation of pollutants from the bottom of regulatory region 1, solving Regulatory region 1 is because of siltation, the problem of needing periodic cleaning to empty.

In view of first treatment facility of the regulatory region 1 as combination pond, intakes for convenience of sewage gravity stream, regulatory region 1 In the bottom of whole system；Immersible pump 11 is set in regulatory region 1, sewage is evacuated to biological treatment zone 2, by biological treatment zone 2 Top is placed on, facilitates the gravity stream of subsequent technique, whole system only sets and once lifted.

Optionally, the volume of regulatory region 1 by hydraulic detention time 8 it is small when design because small towns sewage variation coefficient is big, occupy People's rule of life is close, causes sanitary sewage discharge capacity sooner or later bigger than daytime, night displacement is small, in some instances it may even be possible to stop, water Change is obvious, i.e., anhydrous discharge is in discrete state, has the characteristics that amplitude of variation is big.

Refer to Fig. 1, Fig. 3, Fig. 4, anaerobic layer that biological treatment zone 2 includes setting gradually from the bottom to top, anoxic layer and Aerobic layer, can form respective independent biochemical processing space and form the circulation of each system unit.Biological treatment zone 2 utilizes The effect of microorganism in system, undergoes anaerobism, the aerobic reaction process of biomembrane, effective organics removal and nitrogen, phosphorus.

Anaerobic layer is mainly used for reinforced phosphor-removing, improves anti impulsion load ability, the water inlet end of anaerobic layer and going out for regulatory region 1 Water end (W.E.) connects.

Anoxic layer is mainly used for strengthened denitrification under the conditions of simultaneous oxygen.

Biological rotating disk 21 is set in aerobic layer, is mainly used for organics removal, by biodegradation, removes depollution Thing, the water outlet of aerobic layer are connected with the water inlet end in coagulation area 3.

Reflux pump is set between aerobic layer and anoxic layer, aerobic section mixed-liquor return to anoxic section provides for anoxic section Nitrate nitrogen, improves nitrification, realizes high-efficient denitrification and dephosphorization and reduces COD of sewage.

Specifically, regulatory region 1 sets basket type grid in water inlet end, large-sized floating material and suspension in water inlet are removed Thing, while uniform water, easy to subsequent treatment.The sewage of regulatory region 1 is evacuated to biological treatment zone 2 through immersible pump 11, first passes through life Anaerobic layer in thing treatment region 2, anoxic layer processing, phosphorus in sewage and macromolecular organic pollution etc. obtain good degraded and Conversion, improves the biodegradability of sewage, sets biological rotating disk 21 in aerobic layer, microorganism can be allowed to be connect well with sewage Touch, and it can be made to obtain sufficient oxygen, ensure the treatment effect of aerobic layer.Pass through bio anaerobic, anoxic, aerobic three phases Processing can effectively realize the denitrogenation dephosphorizing of sewage, provide safeguard for qualified discharge.

The water outlet of biological treatment zone 2 is connected with the water inlet end in coagulation area 3, the sewage after biological treatment zone 2 is handled, Coagulation area 3 is flowed into by pipeline.

Fig. 3 is refer to, mixer 31 is provided with coagulation area 3.

Preferably, mixer 31 is Frame type stirrer, when adding medicament in coagulation area 3, makes sewage by Frame type stirrer It is uniformly mixed with medicament, makes small particles of pollution thing assemble to form bulky grain pollutant with coagulant.

Sewage after coagulation area 3 is handled, settling zone 4 is flowed into by pipeline.

Fig. 3, Fig. 4 are refer to, settling zone 4 is provided with inclined tube 41 and bucket 42, for the bulky grain pollutant of formation to be sunk Form sediment, mud-water separation, bulky grain sediment natural subsidence enters bucket 42.

Optionally, inclined tube 41 is honeycomb inclined-tube, its section is regular hexagon, and the inscribed circle diameter scope of regular hexagon is 25 ~50mm.Preferably, the inscribed circle diameter of regular hexagon is 25mm.

Specifically, honeycomb inclined-tube is made of dipping paper, and shaped with phenolic resin curing, make regular hexagon.Honeycomb The advantages of inclined tube is that wetted perimeter is big, and hydraulic radius is small, and runtime layer stream mode is good, and particle sedimentation is disturbed from turbulent flow, can accelerate Grain is separated from water and shortens the precipitation distance of particle.Settling zone 4 is its waterpower half using a considerable advantage of honeycomb inclined-tube Footpath very little, makes current Reynolds number very little in honeycomb inclined-tube, and fluidised form can be made to be in laminar flow or close to laminar flow regime, meet smaller turbulent fluctuation The requirement of property.Hydraulic radius is small at the same time, and current can be made to have larger stability, there is stronger antijamming capability.Based on this The inscribed circle diameter of hexagon cellular inclined tube filler in a little reason settling zones 4 should not be too big.Of course for preventing from depositing in pipe, bee The inscribed circle diameter of nest inclined tube filler can not be too small, and more controls are in 25~50mm in engineering.

Settling zone 4 is from top to bottom divided into four outlet section, precipitating phase, inducer and collection mud section part compositions.

Precipitating phase is provided with inclined tube 41；Collection mud section is provided with bucket 42 and dredging tube 43, and for spoil disposal, bucket 42 passes through pipe Dao Yuchuni areas 9 connect；Inducer between precipitating phase and collection mud section is provided with water distributor 44, for make it that water inlet is uniform；Go out Mouthful section is provided with effluent weir 45, and effluent weir 45 not only controls the height of water level in settling zone 4, also in settling zone 4 current it is equal Even distribution directly affects.Current from bottom to top by inclined tube 41, sediment from top to bottom, their direction contrast, Be conducive to particle to be separated from water.

Optionally, the inclined tube 41 of settling zone 4 can also be replaced with inclined plate.

Sewage after the processing of settling zone 4, filtering cloth filtering pool area 5 is flowed into by pipeline.

Fig. 2 is refer to, filtering cloth filtering pool area 5 is provided with vertical filtering cloth filtering pool 51, is deposited for removing in sewage with suspended state Various impurity, as advanced treating section, further improve the effluent quality of sewage treatment plant.Vertical filtering cloth filtering pool 51 includes Fiber filter disc, collection water conduit tube, mobile suction mud system and mud drainage slot.

Wherein, fiber filter disc includes special riser fiber filter cloth and filter cloth stent.

Optionally, riser fiber filter cloth is 5um micro-filtration fiber plush filter clothes, for the dirt after front process is handled Water carries out further advanced treating.The advantages of this filter cloth is sewage immediately ahead of filter cloth by under action of a fluid, becoming mildewed Fiber lodges in certain direction, is superimposed with each other, the close filter layer as cotton-wool.When filter cloth shut off dirt up at full capacity after, use Negative suction system carries out suction cleaning to it.

Wherein, collection water conduit tube is located at the bottom of fiber filter disc, and for collecting the water after filtering, the water after filtering passes through filter frame In aperture be pooled to the collector pipe of bottom.Mobile mud system of inhaling is made of driving device and dredging tube, and driving device is positioned at fibre Filter cloth upper end is tieed up, dredging tube is located in fiber filter disc gap, is cleaned with the mobile movement for inhaling mud system on fiber filter cloth Sludge.

The flushing of riser fiber filter cloth is inhaled using portable wire washes, and portable wire, which is inhaled, washes particularly as referring to backwash, As filter cloth surface suspended matter is built up, preventing current, water level is begun to ramp up in filter tank by filter cloth filter disc, and triggering liquid level is opened Back purge system is moved in start or stop, proceeds by negative-pressure irrigation.The detailed process of negative-pressure irrigation is that vertical filter disc is fixed, mobile Rinse driving and dredge pump start, start to carry out wire scan-type to the flco of filter surface load to inhale and washes, the muddy water of sucking-off by Outside dredge pump device for transferring, back purge system operation finishes, and the filter cloth after cleaning immediately enters filtration condition, is rinsed without storing With water, it can be achieved that continuous filter, without conventional backwashing equipment.With energy consumption is low, filtering velocity is high, disposal ability is big, effluent quality It is good, floor space is small, operation and maintenance are simple and reliable, can flexibly set processing unit, the advantages that meeting different water requirements of type selecting, With reference to chemical dephosphorization measure, water outlet can be made to reach level-one A standards from level-one B.

Sewage after filtering cloth filtering pool area 5 is filtered, sterile zones 6 are flowed into by pipeline.

Fig. 2 is refer to, sterile zones 6 are provided with ultraviolet disinfection equipment 61, have for removing the bacterium in sewage, pathogenic bacteria etc. Evil material, the sewage after the disinfection of ultraviolet disinfection equipment 61 discharge sewage disposal system.

Fig. 2 is refer to, precipitation sterilizing layer further includes：Dosing area 7, drug storage area 8 and Chu Ni areas 9.

Fig. 2 is refer to, dosing area 7 includes multiple chemicals dosing plants 71, multiple dosing pumps 72 and air blower 73；Each dosing Device 71 connects a dosing pump 72.Dosing area 7 is used to add medicament to coagulation area 3 and Chu Ni areas 9.Air blower 73 mainly has two A effect, first, for providing oxygen to biological treatment zone 2, second, preventing the accumulation of pollutants of regulatory region 1.

Drug storage area 8 is connected with chemicals dosing plant 71, for providing medicament to chemicals dosing plant 71.

Fig. 4 is refer to, Chu Ni areas 9 are connected by pipeline with settling zone 4, for collecting the sludge of the discharge of settling zone 4.Store up mud Area 9 is additionally operable to the sludge of storage whole system discharge, that is, is additionally operable to collect the dirt that biological treatment zone 2 and filtering cloth filtering pool area 5 discharge Mud.Sludge concentrator 91 is set in Chu Ni areas 9, for sludge condensation.Sludge concentrator 91 mainly improves sludge solid content, Sludge concentration is flowed out after the concentration of sludge concentrator 91 more than 3%, easy to follow-up mechanical dehydration, improves the work of mechanical dehydration Make efficiency and using effect.For improve dewatering performance of sludge, carry out mechanical dehydration it is previous as should be uniformly added into it is suitable organic high Molecular flocculant polyacrylamide (PAM), to reduce the resistivity of sludge, is easier to be dehydrated after making sludge solid phase and liquid phase separation.

Chemicals dosing plant 71 is connected with coagulation area 3 and Chu Ni areas 9 respectively by pipeline and dosing pump 72, for coagulation area 3 Medicament is added with Chu Ni areas 9.

Specifically, one embodiment as the utility model, medicament that drug storage area 8 stores is PAC, PAM, chemicals dosing plant 71 and dosing pump 72 be two, each chemicals dosing plant 71 connects a dosing pump 72 and is used to add a kind of medicament.One of them Chemicals dosing plant 71 adds PAM medicaments, another chemicals dosing plant 71 to coagulation area 3 and Chu Ni areas 9 respectively by a dosing pump 72 PAC medicaments are added to coagulation area 3 by another dosing pump 72, add PAC, PAM using integrated dosing system.But this practicality New to be not limited system, the quantity of chemicals dosing plant 71 and dosing pump 72 can suitably be adjusted according to the species of medicament.

PAM, PAC are added in coagulation area 3 can make the small granular suspended matters coacervating large particle sediment of sewage, by stirring Machine stirring is mixed, accelerates the formation of bulky grain sediment.The effect of PAC is the double electricity of compression by it or it hydrolysate What the effect that four aspects such as bridging were caught and adsorbed in layer, electrically neutralization, winding net was completed, it can be caused by oxidizing The particulate matter of COD, which precipitates, to be filtered out, so as to reduce COD, SS isoconcentration.And PAM is high polymer coagulant, You Jigao Molecular flocculant is acted on huge adsorption, and the flco of bigger can be formed between particle.

It is that PAM is configured to aqueous solution to add Chu Ni areas 9 that PAM is added in Chu Ni areas 9, will produce compression double electric layer, make Suspended particulates loss of stability in waste water, micelle thing, which agglomerates, increases particulate, forms floccule body, alumen ustum, and then in dirt Mud-water separation is carried out in mud thickener 91, so as to remove a large amount of suspended matters in waste water, sludge dewatering is greatly improved so as to reach Effect.It can also reduce at the same time and be dehydrated later moisture content, improve work efficiency.

Preferably, in order to make pipeline connection smooth, duct length is shortened as far as possible, drug storage area 8 is close to dosing area 7；Coagulation area 3 It is co-walled with settling zone 4；Filtering cloth filtering pool area 5 is close to sterile zones 6.

The sewage disposal system of the utility model, from the actual conditions small with treatment scale of saving the area, in order to carry The capacity of resisting impact load of high disposal device, can efficient stable operation, sewage disposal system is divided into three Ceng Jiuge areas Domain, is respectively the regulatory region 1 of bottom, the biological treatment zone 2 of top layer, and the coagulation area 3 in intermediate layer, settling zone 4, filtering cloth filtering pool Area 5, sterile zones 6, dosing area 7, drug storage area 8 and Chu Ni areas 9.The sewage disposal system formed using the group technology, each area are empty Between it is upper independent, be respectively completed different functions, the separation of denitrogenation dephosphorizing over time and space, tool can be achieved after effectively combining There is the advantages that floor space is small, reduces investment outlay, is stable, and excess sludge yield is few, and dewatering is good, and easy to operate, Realize wastewater efficient, energy saving, low consumption processing.The sewage disposal system of the utility model utilizes limited space cloth to greatest extent Office, sharpest edges are that floor space is small, management operating is simple, high treating effect, low cost, scale 1000m³The sewage plant of/d Take up an area for 0.87 mu, can be unattended, it is particularly suitable for the small towns that land used is nervous, relief is larger.

Illustrate the operation principle of the sewage disposal system of the utility model below：

For sewage by being promoted to biological treatment zone 2 through immersible pump 11 after regulatory region 1,1 bottom of regulatory region is equipped with boring aeration Pipe 12, prevents accumulation of pollutants in bottom.Sewage utilizes the effect of microorganism in system, experience biology in biological treatment zone 2 Anaerobism, the aerobic reaction process of film, effective organics removal and nitrogen, phosphorus.Sewage enters back into coagulation area 3, settling zone 4 and filter cloth filter Pond area 5, is precipitated and is filtered, and further carries out advanced treating, and the water after filtering cloth filtering pool area is filtered passes through into sterile zones 6 Ultraviolet disinfection equipment 61 carries out disinfection, qualified discharge after the harmful substance such as bacterium, pathogenic bacteria in removal sewage.What system produced Sludge drains into Chu Ni areas 9 by sludge pump and carries out gravity concentration.In sewage disposal process, drug storage area 8 is used to store PAM, PAC medicine Agent, dosing area 7 are used to add PAM, PAC medicament to coagulation area 3, are additionally operable to add PAM medicaments to Chu Ni areas 9.

The utility model is intended to protect a kind of sewage disposal system, to greatest extent using limited space, by regulatory region, life The rational space layout of the carry out such as thing treatment region, coagulation area, settling zone, filtering cloth filtering pool area, sterile zones, each area is spatially independent, Different functions is respectively completed, the separation of denitrogenation dephosphorizing over time and space can be achieved after effectively combining, there is occupation of land face Small, the low cost of product, stable, high treating effect, excess sludge yield is few, and dewatering is good, and management operating is simple etc. Advantage, suitable for land used is nervous, relief is larger and sanitary sewage water and the larger area of variation water quality.

It should be appreciated that the above-mentioned embodiment of the utility model is used only for exemplary illustration or explains this reality With new principle, without forming the limitation to the utility model.Therefore, in the spirit and scope without departing from the utility model In the case of any modification, equivalent substitution, improvement and etc. done, should be included within the scope of protection of this utility model.In addition, The appended claims for the utility model are intended to fall into scope and border or this scope and border Whole in equivalents changes and modifications example.

Claims (11)

1. A kind of 1. sewage disposal system, it is characterised in that including：

   Regulating course, positioned at the bottom of sewage disposal system, including regulatory region (1)；

   Biological treatment layer, positioned at the top layer of the sewage disposal system, including biological treatment zone (2)；

   Sterilizing layer is precipitated, positioned at the intermediate layer of the sewage disposal system；

   The exterior sewage of water inlet end access of the regulatory region (1), water outlet is connected with the water inlet end of the biological treatment zone (2)；

   The water outlet of the biological treatment zone (2) is connected with the water inlet end of the precipitation sterilizing layer.
2. 2. system according to claim 1, it is characterised in that

   The precipitation sterilizing layer includes：Sequentially connected coagulation area (3), settling zone (4), filtering cloth filtering pool area (5) and sterile zones (6)；

   The water inlet end of the coagulation area (3) is connected with the water outlet of the biological treatment zone (2)；

   The water outlet of the sterile zones (6) is the water outlet of the sewage disposal system.
3. 3. system according to claim 2, it is characterised in that

   The precipitation sterilizing layer further includes：Dosing area (7)；

   The dosing area (7) includes multiple chemicals dosing plants (71), multiple dosing pumps (72) and air blower (73)；

   Each chemicals dosing plant (71) connects a dosing pump (72).
4. 4. system according to claim 3, it is characterised in that

   The precipitation sterilizing layer further includes：Drug storage area (8)；

   The drug storage area (8) is connected with the chemicals dosing plant (71), for providing medicament to the chemicals dosing plant (71).
5. 5. system according to claim 4, it is characterised in that

   The precipitation sterilizing layer further includes：Chu Ni areas (9)；

   The Chu Ni areas (9) are connected by pipeline with the settling zone (4), for collecting the sludge of the settling zone (4) discharge.
6. 6. according to the system any one of claim 3-4, it is characterised in that

   The chemicals dosing plant (71) is connected by pipeline and the dosing pump (72) with the coagulation area (3), for being mixed to described Medicament is added in coagulation zone (3).
7. 7. system according to claim 5, it is characterised in that

   The chemicals dosing plant (71) is connected by pipeline and the dosing pump (72) with the Chu Ni areas (9), for the storage Medicament is added in mud area (9).
8. 8. system according to claim 5, it is characterised in that

   The settling zone (4) is provided with inclined tube (41) or inclined plate, is additionally provided with bucket (42)；

   The inclined tube (41) is honeycomb inclined-tube, its section is regular hexagon, and the inscribed circle diameter scope of the regular hexagon is 25 ~50mm；

   The bucket (42) is connected by pipeline with the Chu Ni areas (9).
9. 9. system according to claim 2, it is characterised in that

   The filtering cloth filtering pool area (5) is provided with vertical filtering cloth filtering pool (51)；

   The vertical filtering cloth filtering pool (51) includes fiber filter disc, collection water conduit tube, mobile suction mud system and mud drainage slot.
10. 10. system according to claim 2, it is characterised in that

    The biological treatment zone (2) includes：Anaerobic layer, anoxic layer and the aerobic layer set gradually from the bottom to top；

    The water inlet end of the anaerobic layer is connected with the water outlet of the regulatory region (1)；

    Biological rotating disk (21) is set in the aerobic layer, and the water outlet of the aerobic layer and the water inlet end of the coagulation area (3) connect Connect；

    Reflux pump is set between the aerobic layer and anoxic layer.
11. 11. system according to claim 1, it is characterised in that

    The regulatory region (1) is provided with grid, immersible pump (11) and boring aeration pipe (12)；

    The grid is arranged on the water inlet end of the regulatory region (1)；

    Recess is provided with the regulatory region (1), the immersible pump (11) is arranged in the recess, for by the regulatory region (1) interior sewage transport is to the biological treatment zone (2)；The boring aeration pipe (12) is arranged on the bottom of the regulatory region (1).