CN204939185U - A kind of sewage water denitrification dephosphorization apparatus integrating physical biochemistry and filter - Google Patents

A kind of sewage water denitrification dephosphorization apparatus integrating physical biochemistry and filter Download PDF

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Publication number
CN204939185U
CN204939185U CN201520438109.3U CN201520438109U CN204939185U CN 204939185 U CN204939185 U CN 204939185U CN 201520438109 U CN201520438109 U CN 201520438109U CN 204939185 U CN204939185 U CN 204939185U
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denitrification
biological filter
dephosphorization
filter
water
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郑俊
连宏伟
郑杰
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HUAQI ENVIRONMENT PROTECTION SCIENCE AND TECHNOLOGY Co Ltd
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HUAQI ENVIRONMENT PROTECTION SCIENCE AND TECHNOLOGY Co Ltd
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Abstract

The utility model discloses a kind of sewage water denitrification dephosphorization apparatus integrating physical biochemistry and filter, described device by physical filtering pond, anoxic denitrification biological filter aerobic nitrification biological filter denitrification system, dephosphorization adsorption filtration reactive system and PLC control system form, physical filtering system and anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be connected, anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be connected with dephosphorization adsorption filtration reactive system; Or physical filtering pond is connected with dephosphorization adsorption filtration reactive system, dephosphorization adsorption filtration reactive system and anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be connected; Described physical filtering pond, anoxic denitrification biological filter aerobic nitrification biological filter denitrification system and dephosphorization adsorption filtration reactive system coordinate be connected with aeration and back-purge system, sewage backflow system respectively.The utility model sewage water denitrification dephosphorization apparatus, denitrification reaction can be completed efficiently, do not need additional Dephosphorization reagent, just can by the phosphorus ligands in sewage, there is the distinguishing features such as flow process is short, investment cost is economized, working cost is low, mud easily processes, country's " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level emission standard A can be reached.

Description

A kind of sewage water denitrification dephosphorization apparatus integrating physical biochemistry and filter
Technical field
The utility model belongs to sewage treatment area, relate to a kind of sewage water denitrification dephosphorization apparatus integrating physical biochemistry and filter, this sewage disposal treatment unit has highly effective dephosphorizing denitrification ability and without the need to additional any medicament, cities and towns or community domestic wastewater treatment can be reached country " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard.
Background technology
For a long time, wastewater treatment in China is focused on Degradation Control organic in sewage always, and the control especially strengthened in the last few years " nitrogen " " phosphorus " contaminant degradation causing body eutrophication, the water quality requirement entering water body to Sewage Plant reaches " town sewage plant pollutant emission standard " (GB18918---2002) one-level A standard.Current most of town sewage plant, particularly the town sewage plant of southern area pipe network of marching into the arena is all confluence of rainwater and sewage system, and due to geologic condition poor and cause pipe network to rupture, and then cause influent quality C:N:P than imbalance, show as organic concentration lower, and nitrogen, phosphorus concentration are higher.Process, in the traditional technology of this kind of sewage, coagulative precipitation tank is generally set as pretreatment technology, this technological process need add the flocculation agents such as high poly-type aluminium salt, molysite, phosphorus in sewage and most tiny suspended organic matter and partial solubility organism are formed cotton-shaped coprecipitated thing by " absorption of building bridge " by it, are removed by spoil disposal; Simultaneously due to the adsorption of the flco of formation, the partial solubility organism in sewage is also removed, and so just causes the carbon source of follow-up denitrification denitrogenation process section not enough; In order to ensure denitrification effect, then certainly will need additional as the carbon source such as methyl alcohol, sodium-acetate, working cost be increased greatly, causes the waste of the energy.
Concerning China Small Urban, biological filter sewage disposal technology has a wide range of applications.But biological filter is as a kind of aerobic biologic membrane sewage treatment process, and its dephosphorization ability has certain limitation, cannot effectively remove the phosphorus existed in sewage.In addition, the suspended substance of biological filter to water inlet has strict requirement, so coagulative precipitation tank and biological filter often combinationally use by traditional technology, and adds by chemical agent the object reaching dephosphorization.But the input along with medicament makes large amount of organic in former water be removed, virtually reduce the available carbon source amount of denitrification, cause carbon source not enough and need additional carbon, the process of the chemical sludge simultaneously formed, disposal difficulty, these all can increase considerably cost of water treatment.For this reason, for the biofiltration technique based on biological filter, how to ensure that it normally runs the control overflow to fibrous material and the demand to carbon source; Simultaneously for the defect that this technique phosphor-removing effect is weak, how to find better dephosphorization mode to replace the chemical dephosphorization in technique, above-mentioned these all directly affect application and the popularization of biological filter.Find a kind of simple treatment unit suitable again and solve the problems referred to above, make biological filtering tank process close to perfect, most important to the development promoting biomembrance process technology.
Summary of the invention
The purpose of this utility model is to provide a kind of sewage water denitrification dephosphorization apparatus integrating physical biochemistry and filter, cities and towns or community domestic wastewater treatment can not can be reached " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level A standard by additional any medicament by this sewage water denitrification dephosphorization apparatus.
What the utility model provided integrate sewage water denitrification dephosphorization apparatus that physical biochemistry filters, primarily of physical filtering pond, anoxic denitrification biological filter aerobic nitrification biological filter denitrification system, dephosphorization adsorption filtration reactive system and PLC control system form, physical filtering system and anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be connected, anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be connected with dephosphorization adsorption filtration reactive system; Or physical filtering pond is connected with dephosphorization adsorption filtration reactive system, dephosphorization adsorption filtration reactive system and anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be connected.Described physical filtering pond, anoxic denitrification biological filter aerobic nitrification biological filter denitrification system and dephosphorization adsorption filtration reactive system coordinate be connected with aeration and back-purge system, sewage backflow system respectively.Sewage first through physical filtering pond, then enter anoxic denitrification biological filter aerobic nitrification biological filter denitrification system, finally enter dephosphorization adsorption filtration reactive system; Or sewage is first through physical filtering system, then enter dephosphorization adsorption filtration reactive system, finally enter anoxic denitrification biological filter aerobic nitrification biological filter denitrification system.
The multistage grid that hole reduces successively is installed in physical filtering pond; Preferably, physical filtering pond is made up of the coarse rack be arranged in physical filtering pond, middle grid, fine fack and fine filtering facility; The space of described middle grid is preferably 5-20mm, and the space of described fine fack is preferably 2-5mm, and the aperture of described fine filtering facility is 0.1-2.0mm; Described fine filtering facility is chosen as micro-filtration.
Anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be made up of anoxic denitrification biological filter, aerobic nitrification biological filter and return-flow system, the water outlet of anoxic denitrification biological filter flows into aerobic nitrification biological filter, and the part water outlet of aerobic nitrification biological filter is through being back to anoxic denitrification biological filter.Anoxic denitrification biological filter, aerobic nitrification biological filter are made up of water distributing area, reaction zone, clear water zone respectively, are provided with filter and filter plate in water distributing area, it are supporting layer and haydite layer.
Dephosphorization adsorption filtration reactive system is dephosphorization adsorption filter, and bottom, filter tank is provided with water distribution system, and water distribution system is made up of down-mounting type anti-clogging strainer head and filter plate, and this down-mounting type anti-clogging strainer head top arranges maintenance cap.Dephosphorization adsorption filter structure is divided into water distributing area, reaction zone and clear water zone, and its reaction zone is provided with from bottom to top: down-mounting type anti-clogging strainer head, pebbles, micro-alkali slowly-releasing dephosphorization filtrate.
Described physical filtering pond, anoxic denitrification biological filter aerobic nitrification biological filter denitrification system and dephosphorization adsorption filtration reactive system coordinate be connected with aeration and back-purge system, sewage backflow system respectively.Aerating system is made up of gas blower, airline, regulated valve, air distributor, single-hole membrane aerator, online dissolved oxygen and PLC control system etc.Back-purge system is made up of back flushing blower fan, backwash pump, water distribution and gas distribution pipeline and PLC control system.Back flushing blower fan is connected with PLC control system with backwash pump.Aeration and back-purge system can be connected with aerobic biofilter.Sewage backflow system is made up of the water pump that refluxes, recirculation water pipeline, under meter, nitrate nitrogen monitoring instrument and PLC control system.
Online nitrate nitrogen monitoring instrument, online ammonia nitrogen monitor and/or online dissolved oxygen monitor table are set in the denitrification system of anoxic denitrification Sheng Wulvchi aerobic nitrification biological filter, utilize the data of these instrument monitorings to control the backflow water yield of return-flow system and the air demand of aerating system by PLC system.
Mechanical cleaning device is set in physical filtering system, maybe can also be provided with online ultrasonic solution potential difference instrument, utilize the data of online ultrasonic solution potential difference instrument monitoring to control mechanical scarfing cinder cleaning by PLC system.
What the utility model proposed a kind ofly integrates the sewage water denitrification dephosphorization apparatus that physical biochemistry filters and has the distinguishing features such as flow process is short, investment cost is economized, working cost is low, mud easily processes, COD cr, BOD 5, NH 3-N, SS, TN, TP clearance reach 92%, 95%, 95%, 95%, 90%, 95% respectively.Whole technique can reach country's " urban wastewater treatment firm pollutant emission standard " (GB18918-2002) one-level emission standard A without the need to any outer adding medicine, realizes both having administered water pollutions and again saves energy consumption, also meet the requirement of conservation-minded society.
Accompanying drawing explanation
Fig. 1 is that the utility model integrates one of sewage water denitrification dephosphorization apparatus schematic diagram that physical biochemistry filters.
Fig. 2 is the sewage water denitrification dephosphorization apparatus schematic diagram two that the utility model integrates physical biochemistry and filters.
In figure: A, physical filtering pond, B, anoxic denitrification biological filter, C, aerobic nitrification biological filter, D, dephosphorization adsorption filter, E, B and C composition anoxic denitrification biological filter aerobic nitrification biological filter denitrification system, F, intermediate pool, G, sterilization outlet sump.
1, water pump is promoted, 2, wastewater influent pipeline, 3, trellis system group, 4, outlet conduit, 5, backwash pump,
6, back flushing inlet channel, 7, back flushing outlet conduit, 8, aeration blower, 9, aerated conduit, 10, back flushing blower fan, 11, back flushing intake ducting, 12, intermediate lift pump, 13, reflux line, 14, reflux pump, 15, water distributing area, 16, reaction zone, 17, clear water zone, 18, down-mounting type anti-clogging strainer head, 19, filter plate, 20, aerating system, 21, supporting layer, 22, spherical light porous biological ceramic particle, 23, micro-alkali slowly-releasing dephosphorization filtrate, 24, backwash gas valve, 25, back flushing inlet valve, 26, back flushing flowing water Valve, 27, aeration valve, 28, online nitrate nitrogen Monitoring equipment, 29, online NH 3 instrument, 30, online dissolved oxygen monitor device, 31, feed water flow gauge, 32, PLC computer workstation system, 33, control cable, 34, online ultrasonic solution potential difference instrument.
Embodiment
Below in conjunction with accompanying drawing 1 and accompanying drawing 2, the utility model is described in further detail.
The utility model integrate physics, biology, chemical filtering waste disposal plant primarily of physical filtering pond (A), anoxic denitrification Sheng Wulvchi aerobic nitrification biological filter denitrification system (E) (anoxic denitrification biological filter (B) and aerobic nitrification biological filter (C)) and dephosphorization adsorption filter D are formed, and coordinate to be connected with sewage backflow system with aeration and back-purge system and use.The mechanical scarfing cinder grid group (3) that hole reduces successively is installed in the A of physical filtering pond, to remove most suspended substance and fibrous material in water inlet, ensure follow-up anoxic denitrification biological filter the water distribution system of aerobic nitrification biological filter denitrification system (E) do not block, guarantee the cycle of operation and the producing water ratio of technique; Anoxic denitrification biological filter (B) and aerobic nitrification biological filter (C) all can be divided into water distributing area (15) according to actual functional capability, reaction zone (16) and clear water zone (17); Anoxic denitrification biological filter (B) and aerobic nitrification biological filter (C) reaction zone are equipped with from bottom to top: down-mounting type anti-clogging strainer head (18), filter plate (19), supporting layer (21), spherical light porous biological ceramic particle (22); Dephosphorization adsorption filter (D) reaction zone is provided with from bottom to top: down-mounting type anti-clogging strainer head (18), filter plate (19), pebbles supporting layer (21), micro-alkali slowly-releasing dephosphorization filtrate (23).
Aerating system is made up of aeration blower (8), aerated conduit (9) and aerating system (20).
Back-purge system is made up of back flushing blower fan (10), back flushing inlet pipe (11), backwash pump (5), back flushing inlet channel (6).
Sewage backflow system is made up of the water pump that refluxes (14) and recirculation water pipeline (13).
The utility model integrate physics, biology, chemical filtering sewage denitrification and dephosphorization novel process step be:
1, sewage enters physical filtering pond (A) by sewage water inlet pipe (2), is provided with the grid group (3) that hole reduces successively in physical filtering pond (A).First arrange middle grid, its space is at 5-20mm, and entering fine fack after removing bulk suspended matter, its space is at 2-5mm; Finally enter micro-filtration, its grid/porosity controlling is at 0.1-2.0mm, and flow rate control, at 0.6m/s, makes resistance be able to good control.
2, physical filtering pond (A) water outlet mixes with part aerobic nitrification biological filter (C) water outlet being back to feed-water end through return line (13) from reflux pump (14), then the common inlet channel from anoxic denitrification biological filter (B) (2) enters into anoxic denitrification biological filter (B), supporting layer (21) is entered by water distribution system, and then flow through the spherical light porous biological ceramic particle layer (22) of supporting layer (21) top for denitrifying bacteria apposition growth, by aerobic nitrification biological filter (C)) through reflux pump (14), the nitrate nitrogen that return line (13) is back in anoxic denitrification biological filter (B) is reduced to nitrogen, complete denitrification process, most suspended substances simultaneously in sewage is trapped within the space of spherical light porous biological ceramic particle layer (22), water after spherical light porous biological ceramic particle layer (22) degraded enters outlet conduit (4) after clear water zone (17), gravity flow enters aerobic nitrification biological filter (C).Aerobic nitrification biological filter (C) is substantially the same with the structure of anoxic denitrification biological filter (B), is made up of respectively water distributing area (15), reaction zone (16), clear water zone (17).Down-mounting type anti-clogging strainer head (18) and filter plate (19) are installed in water distributing area, it is supporting layer (21) and spherical light porous biological ceramic particle layer (22), in supporting layer, aerating system (20) is provided with for meeting oxygen supply spy, required air is provided by aeration blower (8), simultaneously due to the further suspended substance removed in sewage of the effect of damming of spherical light porous biological ceramic particle layer (22), finally make sewage be purified and enter clear water zone (17) and pass through rising pipe (4) by water from flowing into intermediate pool through outlet canal.The part water of intermediate pool is by reflux pump (14) and be back to anoxic denitrification biological filter (B) through return line (13), and another part is entered in dephosphorization adsorption filter (D) by intermediate lift pump (12).Dephosphorization adsorption filter (D) structure is the same with anoxic denitrification biological filter (B), is made up of respectively water distributing area (15), reaction zone (16), clear water zone (17).In water distributing area, be provided with down-mounting type anti-clogging strainer head (18) and filter plate (19), it is supporting layer (21) and micro-alkali slowly-releasing dephosphorization filtrate (23).Micro-alkali slowly-releasing dephosphorization filtrate (23) is formed by multiple material hybrid modulation, and can form particle porous shape.
3, regularly carry out back flushing to anoxic denitrification biological filter (B) and aerobic nitrification biological filter (C), back-purge system is made up of back flushing blower fan, backwash pump, water distribution and gas distribution pipeline and PLC control system.Back flushing blower fan is connected with gas distribution pipeline, and backwash pump is connected with water distribution pipeline, and PLC system connects back flushing blower fan and backwash pump.The step that back flushing adopts precipitation position, gas flushing, air water combine flushing and water rinse is carried out.Precipitation position process need opens the emptying facility that need carry out back flushing reactor, is discharged fast by the water (17) of clear water zone, top, filter tank; Namely air-water flushing opens backwash blower fan (9) and valve (24) and backwash water pump (5) and valve (25), air turbulence flushing is carried out to spherical light porous biological ceramic particle (22), the air stream shear forces of rinsing makes the aging biofilm detachment in top layer, discharge with backwashing water, make anoxic denitrification biological filter (B) and aerobic nitrification biological filter (C) Recovery processing ability.
4, regularly back flushing is carried out to dephosphorization adsorption filter.The step that back flushing still adopts precipitation position, gas flushing, air water combine flushing and water rinse is carried out.Regular back flushing effectively can increase the phosphor-removing effect of dephosphorization adsorption filter (D).When micro-alkali slowly-releasing dephosphorization filtrate (23) is adsorbed saturated, need to regenerate it.The calcium phosphate powder calcium phosphate of crystallization can be reclaimed, for the preparation of the material such as cement, how empty brick during regeneration.
5, sewage water inlet pipe (2) is provided with feed water flow gauge (31), online dissolved oxygen monitor device (30) is installed in aerobic nitrification biological filter (C) clear water zone (17), in sewage water inlet pipe (2) and intermediate pool (F), online nitrate nitrogen Monitoring equipment (28) is installed, in the clear water zone (17) and intermediate pool (F) of anoxic denitrification biological filter (B), online NH 3 instrument (29) is installed, by the sequence of control developed specially according to (28), (29), and (31) online monitoring data of recording (30), the backflow water yield of reflux pump (14) and the air demand of aeration blower (8) is regulated by PLC computer workstation system (32) control cables (33), the recirculation water that reflux pump (14) and gas blower (8) are supplied and aeration rate meet denitrification operation requirement just, ensureing farthest to save power consumption under effluent quality meets the requirements of prerequisite.
6, the grid group (3) in physical filtering pond (A) will regularly carry out mechanical scarfing cinder cleaning.According to the data that the online ultrasonic solution potential difference instrument (34) arranged records, by carrying out mechanical scarfing cinder by PLC computer workstation system (32) to grid group (3), ensure the removal efficiency that equipment is higher.

Claims (10)

1. the sewage water denitrification dephosphorization apparatus integrating physical biochemistry and filter, primarily of physical filtering pond, anoxic denitrification biological filter aerobic nitrification biological filter denitrification system, dephosphorization adsorption filtration reactive system and PLC control system form, it is characterized in that: physical filtering system and anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be connected, anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be connected with dephosphorization adsorption filtration reactive system; Or physical filtering pond is connected with dephosphorization adsorption filtration reactive system, dephosphorization adsorption filtration reactive system and anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be connected; Described physical filtering pond, anoxic denitrification biological filter aerobic nitrification biological filter denitrification system and dephosphorization adsorption filtration reactive system coordinate be connected with aeration and back-purge system, sewage backflow system respectively.
2. integrate the sewage water denitrification dephosphorization apparatus that physical biochemistry filters as claimed in claim 1, it is characterized in that: the multistage grid that hole reduces successively is installed in physical filtering pond.
3. integrate the sewage water denitrification dephosphorization apparatus that physical biochemistry filters as claimed in claim 2, its feature exists: be provided with middle grid, fine fack and fine filtering facility in the pond body in described physical filtering pond successively; The space of described middle grid is 5-20mm, and the space of described fine fack is 2-5mm, and the aperture of described fine filtering facility is 0.1-2.0mm.
4. integrate the sewage water denitrification dephosphorization apparatus that physical biochemistry filters as claimed in claim 3, it is characterized in that: described fine filtering facility is micro-filtration.
5. integrate the sewage water denitrification dephosphorization apparatus that physical biochemistry filters as claimed in claim 1, it is characterized in that: described anoxic denitrification biological filter aerobic nitrification biological filter denitrification system be made up of anoxic denitrification biological filter, aerobic nitrification biological filter and return-flow system, the water outlet of anoxic denitrification biological filter is connected with aerobic nitrification biological filter, and the part water outlet of aerobic nitrification biological filter is connected with anoxic denitrification biological filter through return-flow system; Anoxic denitrification biological filter, aerobic nitrification biological filter are made up of water distributing area, reaction zone, clear water zone respectively, are provided with filter and filter plate in water distributing area, it are supporting layer and haydite layer.
6. integrate the sewage water denitrification dephosphorization apparatus that physical biochemistry filters as claimed in claim 1, it is characterized in that: dephosphorization adsorption filtration reactive system comprises dephosphorization adsorption filter, dephosphorization adsorption filter structure is divided into water distributing area, reaction zone and clear water zone, and its reaction zone is provided with down-mounting type anti-clogging strainer head, pebbles, micro-alkali slowly-releasing dephosphorization filtrate from bottom to top; Bottom, filter tank is provided with water distribution system, and water distribution system is made up of down-mounting type anti-clogging strainer head and filter plate, and this down-mounting type anti-clogging strainer head top arranges maintenance cap.
7. integrate the sewage water denitrification dephosphorization apparatus that physical biochemistry filters as claimed in claim 1, it is characterized in that: also comprise aeration and back-purge system, aerating system is made up of gas blower, airline, regulated valve, air distributor, single-hole membrane aerator, online dissolved oxygen and PLC control system etc.; Back-purge system comprises back flushing blower fan, backwash pump, water distribution and gas distributing pipeline; Described back flushing blower fan is connected with PLC control system with backwash pump; Aeration and back-purge system can be connected with aerobic nitrification biological filter.
8. as described in claim 1 or 5, integrate the sewage water denitrification dephosphorization apparatus that physical biochemistry filters, it is characterized in that: in the denitrification system of anoxic denitrification Sheng Wulvchi aerobic nitrification biological filter, arrange online nitrate nitrogen monitoring instrument, online NH 3 instrument, online dissolved oxygen monitor table, the data of described monitoring instrument monitoring control the backflow water yield of return-flow system and the air demand of aerating system by PLC control system.
9. integrate the sewage water denitrification dephosphorization apparatus that physical biochemistry filters as claimed in claim 1 or 2, it is characterized in that: mechanical cleaning device is set in physical filtering pond.
10. integrate the sewage water denitrification dephosphorization apparatus that physical biochemistry filters as claimed in claim 9, it is characterized in that: in physical filtering pond, be also provided with online ultrasonic solution potential difference instrument.
CN201520438109.3U 2015-06-25 2015-06-25 A kind of sewage water denitrification dephosphorization apparatus integrating physical biochemistry and filter Active CN204939185U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106315847A (en) * 2016-11-14 2017-01-11 安徽华骐环保科技股份有限公司 Immobilization filler biomembrane activation and updating and sludge resuspension method
CN108996848A (en) * 2018-09-06 2018-12-14 杨镒玮 A kind of sewage-treatment plant and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106315847A (en) * 2016-11-14 2017-01-11 安徽华骐环保科技股份有限公司 Immobilization filler biomembrane activation and updating and sludge resuspension method
CN108996848A (en) * 2018-09-06 2018-12-14 杨镒玮 A kind of sewage-treatment plant and method

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