CN109264932A - A kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard - Google Patents
A kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard Download PDFInfo
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- CN109264932A CN109264932A CN201811330188.0A CN201811330188A CN109264932A CN 109264932 A CN109264932 A CN 109264932A CN 201811330188 A CN201811330188 A CN 201811330188A CN 109264932 A CN109264932 A CN 109264932A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 239000010865 sewage Substances 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000008569 process Effects 0.000 title claims abstract description 33
- 238000004062 sedimentation Methods 0.000 claims abstract description 54
- 239000006247 magnetic powder Substances 0.000 claims abstract description 25
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 22
- 238000005086 pumping Methods 0.000 claims abstract description 19
- 230000006872 improvement Effects 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 238000005189 flocculation Methods 0.000 claims abstract description 14
- 230000016615 flocculation Effects 0.000 claims abstract description 14
- 230000001954 sterilising effect Effects 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 238000005345 coagulation Methods 0.000 claims abstract description 12
- 230000015271 coagulation Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 238000010926 purge Methods 0.000 claims abstract description 5
- 238000000746 purification Methods 0.000 claims abstract description 4
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 claims abstract 5
- 239000010802 sludge Substances 0.000 claims description 80
- 238000005192 partition Methods 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 238000010992 reflux Methods 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 238000005276 aerator Methods 0.000 claims description 6
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 5
- 239000000701 coagulant Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 4
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- 238000005352 clarification Methods 0.000 claims description 3
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
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- 229910052698 phosphorus Inorganic materials 0.000 description 2
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- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
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- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
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- 239000003292 glue Substances 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
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- 238000006396 nitration reaction Methods 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
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- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
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- 238000011272 standard treatment Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard, including system, system includes according to the inlet pumping station of process flow connection, setting pot, primary sedimentation tank, improvement MBBR biochemistry pool, secondary settling tank, efficient sedimentation tank, filter tank and sterilization pool；Inlet pumping station configures coarse rack, and setting pot configures fine fack, and biochemistry pool includes anaerobic pond, anoxic pond and aerobic tank, and primary sedimentation tank is set to above anaerobic pond, and aerobic tank discharge ends are connected to secondary settling tank, and aerobic tank is equipped with the nitrification liquid return pipe of connection anaerobic pond；Efficient sedimentation tank includes coagulation area, magnetic powder mixed zone, flocculation zone and settling zone；The fiber filtering of the configurating filtered purification sewage in filter tank, and the back purge system of cleaning fiber filtering；Sterilization pool configures sterilizing equipment decontaminating apparatus.System combines secondary biochemical technique, advanced treatment process well, and the meticulous rational design and its intercombination of each unit, the water outlet in terms of sewage disposal plant effluent water quality and black-odor riverway cut dirty control source is up to the quasi- IV class water quality standard of earth's surface.
Description
Technical field
The present invention relates to sewage treatment fields.
Background technique
Town sewage refers mainly to town dweller's sanitary sewage, and various communal facilitys drain and allow to be discharged into town sewage receipts
Industrial wastewater and initial rainwater of collecting system etc..Contain a large amount of suspended matter, organic pollutant and germ, virus in town sewage
Deng so stringent biochemistry, disinfection treatment must be carried out to it.At present China's urban wastewater treatment firm main technique be A/O,
A2/ O, SBR and oxidation ditch, but it is increasingly strict with discharge standard, and the technique and equipment of existing sewage plant have been difficult to full
The new ecological requirements of foot.The application potential for having treatment process and facility therefore, it is necessary to sufficiently excavate town sewage plant, develops
A kind of new technical solution solves the above problems.
Summary of the invention
The technical problem that an aspect of this disclosure solves is, provides a kind of improved sewage treatment process.
The technical solution adopted by the present invention to solve the technical problems is: a kind of town sewage of the quasi- four class water of earth's surface up to standard
Treatment process, including system, the system comprises the inlet pumping stations being linked in sequence according to sewage treatment process, setting pot, just heavy
Pond, improvement MBBR biochemistry pool, secondary settling tank, efficient sedimentation tank, filter tank and sterilization pool；
For the inlet pumping station configured with the coarse rack for intercepting larger solid content in sewage, the setting pot is dirty configured with intercepting
The fine fack of smaller solid content in water, the improvement MBBR biochemistry pool include anaerobic pond, anoxic pond and aerobic tank, are sunk at the beginning of described
Pond is set to above the anaerobic pond, and the discharge ends of the primary sedimentation tank are connected to the anaerobic pond, and the anaerobic pond is via described
Anoxic pond is connected to the aerobic tank, and the aerobic tank discharge ends are connected to the secondary settling tank, and the aerobic tank is equipped with connection
To the nitrification liquid return pipe of the anoxic pond；The efficient sedimentation tank successively includes the coagulation area of dosing coagulant, adds magnetic powder
Magnetic powder mixed zone, add the flocculation zone of flocculant and the settling zone for settlement of sewage；The filter tank is configured with filtration, purification
The fiber filtering of sewage, and the back purge system of cleaning fiber filtering；The sterilization pool configured with sodium hypochlorite throwing device,
Ultraviolet device is for disinfection.
A kind of process for town sewage treatment of the foregoing quasi- four class water of earth's surface up to standard, the coarse rack water inlet end connection
There is sewage water inlet manifold, the inlet pumping station is configured with elevator pump to export sewage.
A kind of process for town sewage treatment of the foregoing quasi- four class water of earth's surface up to standard, the fine fack is the thin lattice of rotary drum
Grid, the sewage of inlet pumping station conveying enter the setting pot after handling via the rotary drum fine fack, in the setting pot
Sand sucker and drain pipe are installed.
A kind of process for town sewage treatment of the foregoing quasi- four class water of earth's surface up to standard, the water inlet end of the primary sedimentation tank are matched
Influent weir is equipped with to control water surface elevation, the first partition wall that can cross water, the draining of the primary sedimentation tank are equipped with after the influent weir
End is configured with equally distributed sawtooth triangular-notch weir, and the sawtooth triangular-notch weir is suspended in the upper end of the water surface in primary sedimentation tank, the sawtooth
The second partition wall of water is crossed in the front end setting lower part of triangular-notch weir, and the rear end of the sawtooth triangular-notch weir is provided with effluent weir, described just heavy
Pond discharge outlet is in the bottom of pond position after effluent weir；Primary sedimentation tank region between first partition wall, the second partition wall is equipped with water
The spoil disposal end of lower mud scraper and corresponding sludge bucket, the sludge bucket is connected to storage basin.
The process for town sewage treatment of the foregoing quasi- four class water of a kind of earth's surface up to standard, in the improvement MBBR biochemistry pool
It is symmetrically arranged with two groups of anaerobic ponds, anoxic pond and aerobic tank；Wherein, the anoxic pond is the concatenated hybrid oxidation ditch of more lattice,
Connected by the water square hole of crossing on partition wall between each hybrid oxidation ditch of lattice and between the anaerobic pond and corresponding anoxic pond
It is logical, and cross and be equipped with regulating gate at water square hole；It is dirty will be flowed back by the first branch that the aerobic tank rear end is equipped with sludge pump house
Mud is sent to anaerobic pond, and second branch is by excess sludge dispatch to the storage basin.
A kind of process for town sewage treatment of the foregoing quasi- four class water of earth's surface up to standard, the secondary settling tank is that Zhou Jinzhou goes out
Circular settling tank is uniformly provided with water distributing pore along its circumferential edge inlet channel bottom, and sewage is collected via catch basin in the secondary settling tank
Discharge, the secondary settling tank is interior to be equipped with compatible dross bucket, scum pipe and compatible cleaning shoe, sludge bucket and spoil disposal
Pipe, sludge from final clarifier pipe are connected to the sludge pump house.
A kind of process for town sewage treatment of the foregoing quasi- four class water of earth's surface up to standard, the efficient sedimentation tank are configured with
For chemicals dosing plant to add PAC, magnetic powder and PAM, coagulation area, magnetic powder mixed zone and flocculation zone are equipped with stirring equipment, wherein
The flocculation zone is equipped with central draft tube, and area stirring equipment is set in cylinder；Catch basin is equipped at the top of the settling zone to receive
Collection clarification sewage is discharged, and suspension has inclined tube to improve suspended particulate depositional area in the pond；Wherein, reflux pump is set will deposit
Upper layer sludge reflux to magnetic powder mixed zone be recycled, lower layer's sludge dispatch to magnetic kind recyclable device, magnetic kind recycling dress
The spoil disposal end set is connected to the storage basin.
A kind of process for town sewage treatment of the foregoing quasi- four class water of earth's surface up to standard, the setting pot, aerobic tank are matched
It is equipped with aerator.
A kind of process for town sewage treatment of the foregoing quasi- four class water of earth's surface up to standard, the storage basin are configured with sludge
Processing equipment.
A kind of process for town sewage treatment of the foregoing quasi- four class water of earth's surface up to standard, completes following technique using system
Content: sewage sequentially enters inlet pumping station, setting pot, primary sedimentation tank, improvement MBBR biochemistry pool, secondary settling tank, efficient sedimentation tank, filter tank
And sterilization pool processing, treated, and water reaches the quasi- IV class water quality standard discharge of earth's surface
An aspect of this disclosure bring one is the utility model has the advantages that municipal wastewater intercepts removal floating through coarse rack and suspends
Solid content, then boosted pump send sewage to further progress column Slag treatment at fine fack, and into setting pot, setting pot is with weight
Based on power separation, the biggish particles sink discharge of specific gravity, the lesser suspended particulate of specific gravity is expelled to primary sedimentation tank by water outlet.
Primary sedimentation tank carries out preliminary sedimentation using gravity, enters back into improvement MBBR biochemistry pool after removing water part SS and organic pollutant,
The biological phosphate-eliminating denitrogenation processing of sewage is realized using anaerobism, anoxic, the alternate cycles of aerobic three different pieces in biochemistry pool,
The water outlet sewage of aerobic tank, which enters, realizes separation of solid and liquid in secondary settling tank, sewage, which introduces, later adds in magnetic efficient sedimentation tank.Mixed
Coagulation zone is mixed with coagulant (PAC), enters magnetic powder mixed zone afterwards and nucleus is precipitated by magnetic powder, so that water-borne glue body particle and magnetic
Powder particles are easy to that collision is de- steady and form wadding body, and suspended matter removal efficiency also greatly improves, then mix to reach with flocculant and have
Enter settling zone after effect flocculation purpose.Sewage enters filter tank after settling zone is separated by solid-liquid separation using inclined tube, is filtered by fiber
Material carries out tiny flocculation formula and filters further dephosphorization and SS, and finally sewage carries out disinfection processing, discharges after up to standard or reuse.
Improved system can satisfy higher environment or requirement, accord with by rationally designing and its being combined with each other
Energy-saving and environment-friendly requirement is closed, realizes the best unification of social benefit, economic benefit and environmental benefit well.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation below in conjunction with attached drawing,
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.
In attached drawing:
Fig. 1 is present system overall schematic；
Fig. 2 is setting pot schematic diagram of the present invention；
Fig. 3 is primary sedimentation tank schematic diagram of the present invention；
Fig. 4 is present invention improvement MBBR biochemistry pool schematic diagram；
Fig. 5 is the first visual angle of secondary settling tank of the present invention schematic diagram；
Fig. 6 is the second visual angle of secondary settling tank of the present invention schematic diagram；
Fig. 7 is efficient sedimentation tank schematic top plan view of the present invention；
Fig. 8 is efficient sedimentation tank schematic cross-sectional view of the present invention；
Fig. 9 is the first visual angle of filter tank of the present invention schematic diagram；
Figure 10 is the second visual angle of filter tank of the present invention schematic diagram；
Mark is described as follows in figure:
1, inlet pumping station；2, setting pot；21, rotary drum fine fack；22, grid flushing pipe；23, mud hole；24, sand sucker；
25, drain pipe；26, aeration tube (setting pot)；27, scum board；28, cinder hole is crossed；29, outlet pipe (setting pot)；3, primary sedimentation tank；
31, influent weir；310, the first partition wall；32, sawtooth triangular-notch weir (primary sedimentation tank)；320, the second partition wall；33, underwater mud scraper；34, go out
Mill weir；35, sludge bucket (primary sedimentation tank)；4, MBBR biochemistry pool is improved；41, anaerobic pond；42, anoxic pond；43, aerobic tank；44, it dives under water
Propeller；45, sludge pump house；5, secondary settling tank；51, water inlet pipe (secondary settling tank)；52, cleaning shoe；53, sludge pipe；54, dross bucket；
55, scum pipe；56, water distributing pore；57, outlet pipe (secondary settling tank)；58, sludge bucket (secondary settling tank)；510, (two is heavy for sawtooth triangular-notch weir
Pond)；511, catch basin (secondary settling tank)；6, efficient sedimentation tank；61, coagulation area；62, magnetic powder mixed zone；63, flocculation zone；64, it precipitates
Area；65, inclined tube；7, filter tank；71, air hose is backwashed；72, water pipe is backwashed；73, backwashing wastewater pipe；74, filter material layer；75,
Catch basin (filter tank)；76, inlet channel；77, match mill weir；78, water hole；79, outlet canal；710, outlet pipe (filter tank)；711, go out
Mill weir (filter tank)；8, sterilization pool；9, storage basin；10, between dosing；11, air blast computer room；12, sludge treatment device.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.
Based on described the embodiment of the present invention, those of ordinary skill in the art are under the premise of being not necessarily to creative work
Every other embodiment obtained, shall fall within the protection scope of the present invention.Unless otherwise defined, the technology art that the disclosure uses
Language or scientific term should be the ordinary meaning that persons with general skills in the field are understood.
" first ", " second " used in the disclosure and similar word are not offered as any sequence, quantity or again
The property wanted, and be used only to distinguish different component parts.Equally, "one", the similar word such as " one " or "the" also do not indicate
Quantity limitation, but indicate that there are at least one.The similar word such as " comprising " or "comprising" means occur before the word
Element or object cover appear in the element of the word presented hereinafter perhaps object and its it is equivalent and be not excluded for other elements or
Object." connection " either the similar word such as " connected " is not limited to physics or mechanical connection, but may include
Electrical connection, it is either direct or indirect."upper", "lower", "left", "right" etc. are only used for indicating that relative position is closed
System, after the absolute position for being described object changes, then the relative positional relationship may also correspondingly change.
A kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard as shown in Figure 1, including system, the system packet
Include inlet pumping station, setting pot, primary sedimentation tank, improvement the MBBR biochemistry pool, secondary settling tank, height being linked in sequence according to sewage treatment process
Imitate sedimentation basin, filter tank and sterilization pool.
The inlet pumping station 1 is configured with the coarse rack for intercepting larger solid content in sewage, the discharge ends of the inlet pumping station
It is connected to the setting pot 2, the setting pot 2 is configured with the fine fack for intercepting smaller solid content in sewage, the setting pot 2
Discharge ends are connected to the primary sedimentation tank 3, improvement MBBR (the Moving-Bed Biofilm Reactor) biochemistry pool include according to
Anaerobic pond, anoxic pond and the aerobic tank of secondary connection, the primary sedimentation tank are set to above the anaerobic pond, the row of the primary sedimentation tank
Water end (W.E.) is connected to the anaerobic pond, and the anaerobic pond is connected to the aerobic tank, the aerobic tank draining via the anoxic pond
End is connected to the secondary settling tank, and the aerobic tank is equipped with the nitrification liquid return pipe for being connected to the anoxic pond；It is described efficiently heavy
Shallow lake pond successively includes the coagulation area of dosing coagulant, magnetic powder mixed zone, the flocculation zone for adding flocculant and the confession for adding magnetic powder
The settling zone of settlement of sewage；The filter tank is configured with the fiber filtering of filtration, purification sewage, and the recoil of cleaning fiber filtering
Cleaning device；The sterilization pool is configured with sodium hypochlorite throwing device, ultraviolet device for disinfection.
It is built jointly between coarse rack with inlet pumping station, the water inlet end of the coarse rack is connected with sewage water inlet manifold, passes through coarse rack
Biggish floating and suspension solid content in removal sewage (such as municipal water) are intercepted, to guarantee that subsequent processing facility is smoothly transported
Row, then given sewage to the fine fack of setting pot by elevator pump, coarse rack uses rope traction scraper bucket type grid maker, grid
Gap 20mm, grid slag after helical feed to grid slag case by transporting outward.
Referring to Fig.2, fine fack is built jointly with the setting pot equipped with aerator, fine fack preferably uses rotary drum fine fack 21,
Can integrally can be achieved cut a slag, slagging-off, four kinds of screw lifting, press dewatering functions, it is thorough with scarfing cinder, separative efficiency is high, knot
The advantages that structure is compact, fine fack are cleaned periodically by the grid flushing pipe 22 of its configuration to clear up the solid content in grid in time
Dirt is discharged by mud hole 23.Specifically, sewage is introduced between fine fack, and the water inlet end of setting pot is connected to rotary drum fine fack
21 water outlet, sewage can enter setting pot after rotary drum fine fack 21 is to water further progress debris retaining processing, in setting pot
The equipment such as the scum board 27 for having cinder hole 28 and purlin vehicle type sand sucker 24, sand discharge pipe 25 are set.Dross in sewage is logical
The retention of scum board 27 is crossed, while the air blast computer room in aerator is connect by aeration tube 26 with setting pot 2, is made by aeration
It obtains sewage and makees spiral rotating movement, the suspended particulate in sewage mutually collides, rubs and make the organic pollutant for being attached to sand grains
Removal, and will be sucked out after the biggish particles sink of specific gravity by purlin vehicle type sand sucker 24 based on Gravity Separation in setting pot 2,
It is discharged again by sand discharge pipe 25；The lesser particle of specific gravity passed through cinder hole 28 and was discharged with setting pot outlet pipe 29.
Refering to Fig. 3, which is built in the top of anaerobic pond 4 in improvement MBBR biochemistry pool, to save land used.Specifically,
The water inlet end of primary sedimentation tank 3 controls water surface elevation configured with influent weir 31, is equipped with the first partition wall 310 after the influent weir 31,
The discharge ends of settable permeable hole on first partition wall 310, the primary sedimentation tank 3 are configured with equally distributed sawtooth triangular-notch weir
32, the sawtooth triangular-notch weir 32 is suspended in upper end in pond, and there is lower part can cross water for the front end setting of the sawtooth triangular-notch weir 32
Effluent weir 34 is arranged in the rear end of second partition wall 320, the sawtooth triangular-notch weir 32, and 3 discharge outlet of primary sedimentation tank is in effluent weir 34
Bottom of pond position later, is discharged using gravity；Primary sedimentation tank region between first partition wall 310, the second partition wall 320 is equipped with water
The spoil disposal end of lower mud scraper 33 and corresponding sludge bucket 35, the sludge bucket 35 is connected to storage basin 9.
Sewage covers influent weir 31 and enters primary sedimentation tank 3 via the first partition wall 310 again, in pond after preliminary sedimentation, leads to
It crosses the second partition wall 320 and enters sawtooth triangular-notch weir region, be responsible for collecting the water outlet of primary sedimentation tank 3 by equally distributed sawtooth triangular-notch weir,
The water being collected passes through the anaerobic pond 41 that effluent weir 34 flows under the influence of gravity into lower part later.Underwater mud scraper 33 in pond
The precipitating silt particle of bottom is struck off and is collected in sludge bucket 35 and is periodically discharged, the Sludge from primary sedimentation tank being generally discharged is led to by screw pump
Sludge pipe is crossed to send to storage basin 9.
Refering to Fig. 4, improveing MBBR biochemistry pool 4 includes anaerobic pond 41, anoxic pond 42 and aerobic tank 43.Aforementioned primary sedimentation tank 3
Water outlet be connected to the water inlet end of anaerobic pond 41, the water inlet end of the water outlet connection anoxic pond 42 of anaerobic pond 41, anoxic pond 42
Water outlet connection aerobic tank 43 water inlet end, aerobic tank 43 water outlet a part discharge, a part by nitrification liquid reflux
Pipe is back to anoxic pond 42.
Entire 4 outside of improvement MBBR biochemistry pool is in rectangular configuration, is equipped with underwater scooter 44 along water (flow) direction, is arranged in pond
There are two groups of anaerobic pond 41, anoxic pond 42 and aerobic tanks 43 above-mentioned, and two groups of structures are in left and right symmetrical arrangement, symmetrical structure
Convenient for arranging shared device, pipeline, sewage is set such as among two groups of structures and enters channel.Anaerobic pond 41 is preferably thoroughly mixed
Oxidation ditch, be equipped with water square hole and regulating gate on 42 mid-board of anaerobic pond 41 and anoxic pond, water flow passes through water side
Hole flows into anoxic pond 42.
Anoxic pond 42 is preferably thoroughly mixed formula oxidation ditch using more lattice, sets on respective midfeather between every lattice oxidation ditch
There is water square hole to form communicating passage, and regulating gate is installed with regulating flow, and was equipped with diving along water (flow) direction in pond and pushes away
Into device, sewage enters aerobic tank after successively circulating.For anoxic pond as anaerobic pond, all being continuously run by underwater stirrer makes dirt
Mud is in suspended state, and for mixed liquor in channel internal circulation flow, water flow crosses water square hole between anoxic pond and aerobic tank in pond
It flows into aerobic tank.
Aerobic tank 43 is complete pulling flow type, and 43 rear end of aerobic tank is equipped with reflux pump house, is provided with diving propelling in anoxic pond
Device forms the reflux between anoxic pond and aerobic tank.Reflux nitrification liquid is substantially exactly that the sewage containing ammonia nitrogen is carried out by aerobic tank
It is converted to nitrate nitrogen, and by denitrification to eliminate the nitrogen in sewage after flowing back, general mixed liquid recycle ratio is 200%, is returned
The reflux ratio for flowing sludge is 50%.One piece of region is individually separated out among aerobic tank end as sludge pump house 45, the improvement
Returned sludge is promoted to anaerobic pond by the sludge pump house of MBBR biochemistry pool, and excess sludge is promoted to mud storage pool by sludge pipe.
Meanwhile air blast computer room 11 is connect with aerobic tank 43 by aeration tube and is oxygenated, it is micro- by what is be arranged in aerobic tank
Cellular type aerator carries out air diffusion, and aerobic tank dissolved oxygen is controlled by the air output of adjusting air blower in 2~5mg/L or so.
Suspended biological filler is additionally provided in pond, floating stuffing is added to the carrier in aeration tank as microorganism growth, and filler passes through
Aeration effect can come into full contact with after being in fluidization with sewage, and microorganism is in gas, liquid, solid three-phase growing environment, carry at this time
Internal anaerobic bacteria or facultative anaerobic bacteria raised growth, external then be aerobic bacteria, one microreactor of each carrier formation makes nitre
Change reaction and anti-nitration reaction exists simultaneously.
The design for improveing MBBR biochemistry pool 4 has many advantages, and MBBR structure of reactor is compact, due to packing specific area
Greatly, so that reactor volume load is high, occupied area is saved；Impact load, temperature change, sewage composition variation, sewage
The influence that toxicity increases to MBBR reactor will be far smaller than activated sludge process, negative for high SS also without worrying sludge bulking
Lotus, without pretreatment；Sludge settling property is good, is easy to be separated by solid-liquid separation, and surplus sludge volume is few, reduces Treatment of Sludge and disposition takes
With operation management is easy to, sludge bulking problem is reduced；Since filler and water flow are mixed in the entire volume of biological tank, make
Pool capacity is fully exploited, and high-quality durable biologic packing material, aerating system and water storage device can guarantee that whole system makes for a long time
With without replacing；No setting is required for aeration tank filler support, to the easy to maintain of the aerator of filler and bottom of pond, simultaneously
It can reduce investment outlay and occupied area；Sodium acetate extra-nutrition object can be added by control on demand, improve efficiencies of nitrogen removal.Pass through
The processing for improveing MBBR biochemistry pool, can significantly cut down COD (COD), BOD5(five-day BOD), SS are (outstanding
Floating object) and TN (nitrogen pool), NH3The pollutant concentrations such as-N (ammonia-nitrogen content), TP (total phosphorus content).
Refering to Fig. 5-6, the water inlet pipe 51 that Zhou Jinzhou goes out round secondary settling tank 5 is connected to the water outlet of aforementioned aerobic tank 43, then
Water distributing pore 56 by being uniformly arranged on pond periphery makes 5 even water distribution of secondary settling tank, is provided with cleaning shoe 52, spoil disposal in secondary settling tank 5
Pipe 53, dross bucket 54, scum pipe 55, sludge bucket 58.Dross in pond is discharged after being collected by dross bucket 54 by scum pipe 55, is scraped
Mud plate 52 sludge will be discharged by sludge pipe under the effect of gravity at sludge scraping to sludge bucket 58, and the sludge of discharge is returned through sludge pipe
It is flow to sludge pump house 45 above-mentioned, returned sludge is back to aforementioned improvement MBBR biochemistry by mud return line by sludge pump house 45
The anoxic pond 42 or anaerobic pond 41 in pond 4 enter sludge treatment device after excess sludge is promoted to storage basin 9 by sludge pipe.
The sewage of secondary settling tank 5 is discharged after the collection of catch basin 511 by outlet pipe, makes secondary settling tank 5 by sawtooth triangular-notch weir 510 at water outlet
It can uniformly be discharged.The secondary settling tank 5 is designed based on Inlet and outlet water concentration of suspension difference, and impact resistance ability is strong, and hydraulic surface loading is high,
Water inlet even water distribution, settling zone capacity utilization is high, and the adaptability of impact load and temperature change is stronger, and sedimentation effect is steady
Fixed, hydraulic detention time is long, is conducive to be separated by solid-liquid separation, and can increase substantially deposition efficiency, and sludge lifting expense is low.
Refering to Fig. 7-8, efficient sedimentation tank 6 includes coagulation area 61, magnetic powder mixed zone 62, flocculation zone 63 and settling zone 64,
It is equipped with water hole between each area, wherein dosing coagulant (PAC) in coagulation area 61, adds magnetic powder in magnetic powder mixed zone 62, flocculates
Flocculant (PAM) is added in area 63；Medicament PAC, magnetic powder, PAM add pipe, magnetic by PAC by between dosing 10 chemicals dosing plant
Powder adds pipe, PAM adds pipe and adds, and each pond is all made of mechanical stirring mixing.Wherein, center water conservancy diversion is set in flocculation zone 63
Cylinder, central draft tube is interior to be arranged blender, and the mixed liquor that raw water, medicament and magnetic powder are formed is in central draft tube inner-outer circulation stream
Dynamic, realization is effectively flocculated.The water outlet of flocculation zone 63 enters settling zone 64 and carries out mud-water separation, and suspended particulate is precipitated by inclined tube 65
By uniform deposition, final primary water collects discharge by the triangular-notch weir catch basin of Chi Ding.
Specifically, settling zone is provided with sludge pump, inclined tube, inclined tube can be improved the uniformity of sewage water flow distribution, improve
Deposition efficiency, mud mixture flow into the inclined tube lower part of settling zone, and precipitation zone of the body refuse under inclined tube completes mud-water separation, dirty
Mud sinks to sludge bucket.Sludge is back to magnetic powder by sludge reflux pump and adds area as circulating sludge sludge bucket at the middle and upper levels, and lower layer is dirty
Mud by sludge pipe drains into magnetic kind recyclable device after collecting, and magnetic powder is contained in the partial sludge, and magnetic powder is returned through magnetic kind recyclable device
It is recycled after receipts, magnetic powder excess sludge after the recovery enters sludge treatment device 12 after draining into storage basin.
The sludge that secondary settling tank 5 and efficient sedimentation tank 6 are discharged can be emitted into the place that can receive thickened sludge, can also
Drying and other treatment is carried out to it.Specific: sludge dewatering workshop is provided with belt thickener machine, plate and frame filter press, conditioner, shaftless spiral shell
Revolve conveyer.The excess sludge outlet side of secondary settling tank, the excess sludge outlet side of high dense settling pond are connected to through pipe influx
Storage basin, the sludge in storage basin carries out coagulation to sludge by adding PAM between dosing, then enters stirring by thickener feed pump
Through belt thickener machine thickening after slot is uniformly mixed, sludge enters conditioner and is improved later, passes through dosing in conditioner
Between add PFS into pond with the connecting tube of conditioner and carry out coagulation, the sludge after conditioning is de- to plate and frame filter press through sludge pumping
Water, dewatered mud cake are sent to sludge bucket by Shaftless screw conveyor and wait outward transport disposition.
Refering to Fig. 9-10, filter tank 7 preferably uses D type filter tank, does further to the water outlet of aforementioned high efficiency clarification tank processing
Filtering, reduces SS (Suspendedsolid), the TP (Total phosphorus) of tail water.In D type filter tank configure fiber filtering,
Back-purge system, main structure include with mill weir 77, inlet channel 76, filter material layer 74, effluent weir 711, outlet canal 79, backwash
System configuration has backwash air hose 71, backwash water pipe 72 and backwashing wastewater pipe 73.Filtering is filtered using comet type fiber
Material is filtered, and it is that new topic " intelligent core " forms that Comet-type fiber filter material is biggish by loose fibre bundle " comets tail " and specific gravity,
Whole is in comet formation, and comets tail fibre bundle is fixed in intelligent core, due to the design feature of Comet-type fiber filter material asymmetry hook-type,
So having the characteristics that high filtering velocity, high-precision filtration, to reduce occupied area, effluent characteristics are improved.Sewage first by into
Water channel 76 by 78 uniform flow of water hole, guarantees the uniformity of water distribution with mill weir again.The D type filter tank is configured with air douche, gas
Water mixing is rinsed, clear water rinses three stage back-purge systems, and the backwash blower, backwashing pump in system pass through pipeline pair respectively
Filtrate is cleaned, and to ensure its filter capacity, the sewage after backwashing passes through after catch basin 75 is collected from 710 row of outlet pipe
Out, the backwash drainpipe in D type filter tank is connected with coarse rack and inlet pumping station.
The water inlet pipe of the water outlet connection sterilization pool 8 in D type filter tank, adds hypochlorous acid in the contact pool area of sterilization pool 8
Sodium carries out disinfection processing to water outlet, and sodium hypochlorite storage tank can be specifically provided with by contact chamber, adds metering pump, for configuring
With add sodium hypochlorite.Ultraviolet disinfection area is connected after contacting pool area, which is provided with electronic channel gate, purple
Outside line chlorination equipment and water level control slap door.The water outlet in disinfection by ultraviolet light area is connected with water outlet conditioning tank, through contact chamber area
Treated domain and disinfection by ultraviolet light area, and sewage is discharged by outlet pipe, and general be discharged on conditioning tank is provided with reuse water pump, is used for
The promotion of return water.
Whole system combines secondary biochemical technique, advanced treatment process well, and the meticulous of system each unit is rationally set
Meter and its intercombination, the water outlet in terms of sewage disposal plant effluent water quality and black-odor riverway cut dirty control source is up to " earth's surface water ring
Border quality standard (GB3838-2002) " the quasi- IV class water quality standard (dissolved oxygen >=3, COD≤30, BOD of earth's surface5≤ 6, SS≤10, NH3-
The unit of N≤1.5, TP≤0.3: mg/L (except TN))；Sludge character is good, denitrification effect is excellent；Low equipment investment, operating cost
It is low；Capacity of resisting impact load is strong, system stability is strong；Improve and restores water body to realize ecological water supplement.System can satisfy higher
Environment or requirement, while economical and energy saving, operation and maintenance expense are low, meet energy-saving and environment-friendly requirement, realize well
The best unification of social benefit, economic benefit and environmental benefit.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the present invention can have various changes, combination and variation.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should be included within scope of the presently claimed invention.
Claims (10)
1. a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard, including system, it is characterised in that: the system comprises
According to sewage treatment process be linked in sequence inlet pumping station, setting pot, primary sedimentation tank, improvement MBBR biochemistry pool, secondary settling tank, efficiently
Sedimentation basin, filter tank and sterilization pool；
The inlet pumping station is configured with the coarse rack for intercepting larger solid content in sewage, and the setting pot is configured in interception sewage
The fine fack of smaller solid content, the improvement MBBR biochemistry pool includes anaerobic pond, anoxic pond and aerobic tank, and the primary sedimentation tank is set
It is placed in above the anaerobic pond, the discharge ends of the primary sedimentation tank are connected to the anaerobic pond, and the anaerobic pond is via the anoxic
Pond is connected to the aerobic tank, and the aerobic tank discharge ends are connected to the secondary settling tank, and the aerobic tank is equipped with and is connected to institute
State the nitrification liquid return pipe of anoxic pond；The efficient sedimentation tank successively includes the coagulation area of dosing coagulant, the magnetic for adding magnetic powder
Powder mixed zone, the flocculation zone for adding flocculant and the settling zone for settlement of sewage；The filter tank is configured with filtration, purification sewage
Fiber filtering, and cleaning fiber filtering back purge system；The sterilization pool is configured with sodium hypochlorite throwing device, ultraviolet
Line apparatus is for disinfection.
2. a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard as described in claim 1, it is characterised in that: described
Coarse rack water inlet end is connected with sewage water inlet manifold, and the inlet pumping station is configured with elevator pump to export sewage.
3. a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard as claimed in claim 2, it is characterised in that: described
Fine fack is rotary drum fine fack, and the sewage of the inlet pumping station conveying enters the sand setting after handling via the rotary drum fine fack
Pond is equipped with sand sucker and drain pipe in the setting pot.
4. a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard as claimed in claim 3, it is characterised in that: described
The water inlet end of primary sedimentation tank controls water surface elevation configured with influent weir, is equipped with the first partition wall that can cross water after the influent weir,
The discharge ends of the primary sedimentation tank are configured with equally distributed sawtooth triangular-notch weir, and the sawtooth triangular-notch weir is suspended in the water surface in primary sedimentation tank
Upper end, the front end setting lower part of the sawtooth triangular-notch weir crosses the second partition wall of water, and the rear end of the sawtooth triangular-notch weir is provided with
Effluent weir, the primary sedimentation tank discharge outlet are in the bottom of pond position after effluent weir；It is first between first partition wall, the second partition wall
Heavy pool area is equipped with underwater mud scraper and corresponding sludge bucket, and the spoil disposal end of the sludge bucket is connected to storage basin.
5. a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard as claimed in claim 4, it is characterised in that: described
Two groups of anaerobic ponds, anoxic pond and aerobic tank are symmetrically arranged in improvement MBBR biochemistry pool；Wherein, the anoxic pond is the series connection of more lattice
Hybrid oxidation ditch, pass through partition wall between each hybrid oxidation ditch of lattice and between the anaerobic pond and corresponding anoxic pond
On cross water square hole connection, and cross water square hole at be equipped with regulating gate；The aerobic tank rear end is equipped with sludge pump house by the
One branch send returned sludge to anaerobic pond, and second branch is by excess sludge dispatch to the storage basin.
6. a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard as claimed in claim 5, it is characterised in that: described
Secondary settling tank is that Zhou Jinzhou goes out circular settling tank, is uniformly provided with water distributing pore, dirt in the secondary settling tank along its circumferential edge inlet channel bottom
Water is collected via catch basin and is discharged, and compatible dross bucket, scum pipe are equipped in the secondary settling tank and compatible scrapes mud
Plate, sludge bucket and sludge pipe, sludge from final clarifier pipe are connected to the sludge pump house.
7. a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard as claimed in claim 6, it is characterised in that: described
For efficient sedimentation tank configured with chemicals dosing plant to add PAC, magnetic powder and PAM, coagulation area, magnetic powder mixed zone and flocculation zone are equal
It is equipped equipped with stirring, wherein the flocculation zone is equipped with central draft tube, area stirring equipment is set in cylinder；The settling zone top
Portion is equipped with catch basin to collect clarification sewage discharge, and suspension has inclined tube to improve suspended particulate depositional area in the pond；Wherein, if
The upper layer sludge reflux that reflux pump is set will deposit to magnetic powder mixed zone is recycled, and lower layer's sludge dispatch to magnetic kind, which is recycled, to be filled
It sets, the spoil disposal end of the magnetic kind recyclable device is connected to the storage basin.
8. a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard as claimed in claim 7, it is characterised in that: described
Setting pot, aerobic tank are configured with aerator.
9. a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard as claimed in claim 8, it is characterised in that: described
Storage basin is configured with sludge treatment device.
10. a kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard as described in claim 1, it is characterised in that: adopt
Complete following technique content with system: sewage sequentially enters inlet pumping station, setting pot, primary sedimentation tank, improvement MBBR biochemistry pool, two heavy
Pond, efficient sedimentation tank, filter tank and sterilization pool processing, treated, and water reaches the quasi- IV class water quality standard discharge of earth's surface.
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Inventor after: Huang Qiong Inventor after: Zhang Wei Inventor after: Wang Chunhua Inventor after: Xia Weihong Inventor after: Huo Guoyou Inventor after: Sun Hui Inventor after: Yang Fan Inventor after: Zheng Bo Inventor before: Huang Qiong Inventor before: Zhang Wei Inventor before: Wang Chunhua Inventor before: Xia Weihong Inventor before: Huo Guoyou Inventor before: Sun Hui Inventor before: Yang Fan Inventor before: Zheng Bo |
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Application publication date: 20190125 |