CN210915752U - Compact MBBR and super-efficient separation coupled deep nitrogen and phosphorus removal treatment system - Google Patents
Compact MBBR and super-efficient separation coupled deep nitrogen and phosphorus removal treatment system Download PDFInfo
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Abstract
The utility model discloses a compact MBBR and super-efficient separation coupled's degree of depth nitrogen and phosphorus removal processing system, including the pure membrane MBBR pond of oxygen deficiency that links to each other in proper order, good oxygen pure membrane MBBR pond, magnetism kind loading pond, flocculation basin and sedimentation tank, wherein, the sedimentation tank is connected to magnetism kind piece-rate system, and magnetism kind piece-rate system still links to each other with magnetism kind loading pond, and oxygen deficiency pure membrane MBBR pond, good oxygen pure membrane MBBR pond, magnetism kind loading pond, flocculation tank still respectively with carbon source dosing system, coagulant dosing system, magnetism kind dosing system and coagulant aid dosing system are connected. The utility model has the advantages that the functions of denitrification, dephosphorization, SS removal and the like are integrated, the removal effect of TN, TP and SS in sewage of a sewage treatment plant is enhanced, the stability of system operation is enhanced, the process flow is compact, and the occupied area is saved; meanwhile, the device has the advantages of small head loss, simple design, manufacture and installation, no backwashing process, few supporting facilities and the like.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to a compact MBBR and super effect separation and coupling's degree of depth nitrogen and phosphorus removal processing system.
Background
In recent years, with the rapid development of national economy, a large amount of nutrient elements such as nitrogen and phosphorus are taken into water, and environmental problems such as blue algae outbreak are caused. With the development of the action plan for preventing and treating water pollution (Ten water items), the comprehensive eradication of inferior V-class water is one of the current focus targets. Because a large amount of effluent treated by the sewage treatment plant is discharged into the water environment and the quality of the water environment can be directly influenced, the primary A standard of pollutant discharge standard of urban sewage treatment plant (GB18918-2002) executed by the urban sewage treatment plant is still close to the poor V-class water on the earth surface, the water quality of the effluent of the urban sewage treatment plant is urgently required to be further improved, and more strict local discharge standard or quasi-earth surface IV/III-class water standard is provided in partial regions and environment-sensitive water areas, and even the strict standard that TN is less than or equal to 3-5mg/L, TP is less than or equal to 0.1mg/L is required to. Sewage treatment plants in different functional areas execute corresponding water environment quality standards, can provide a high-quality supplementary water source for a receiving water body, and have important significance for recovering and improving the water environment.
The existing sewage treatment plants mainly depend on biochemical systems for removing TN, the treated water amount and the discharge standard in the actual operation process are changed and are influenced by seasons, so that the TN removal of most of the biochemical systems of the urban sewage treatment plants reaches the upper limit and the discharge standard is difficult to meet. Some sewage treatment plants are upgraded and modified by ' upgrading and upgrading the standard, and are interfered by factors such as shortage of land, fluctuation of water quality, long modification time consumption, incapability of stopping production and the like, and the original biochemical system is difficult to further ' upgrade ' and stably reach stricter discharge standards.
In order to reach high discharge standard, the deep nitrogen and phosphorus removal treatment process is widely applied in sewage treatment engineering, such as a denitrification deep bed filter, a high-density sedimentation tank, a micro-sand loading sedimentation tank, a magnetic loading coagulating sedimentation tank and the like. Although the denitrification deep-bed filter has treatment effects on TN, TP and SS, the denitrification deep-bed filter cannot achieve higher treatment efficiency on each index at the same time, and has the problems of increased COD (chemical oxygen demand) of effluent, high head loss, high design, manufacture and installation difficulty, high backwashing water quantity, easy hardening of filter materials, many supporting facilities and the like caused by high carbon source adding control difficulty; the processes of a high-density sedimentation tank, a micro-sand loading sedimentation tank, a magnetic loading coagulating sedimentation tank and the like have good phosphorus and SS removing effects, but TN cannot be effectively removed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a compact MBBR and super-efficient separation coupled deep denitrification and dephosphorization treatment system, which integrates the functions of denitrification, dephosphorization and SS removal, strengthens the removal effect of TN, TP and SS in the tail water of a sewage treatment plant, simultaneously ensures that the COD of the outlet water is not increased, and enhances the stability of the system operation; meanwhile, the device has the advantages of small head loss, simple design, manufacture and installation, no backwashing process, few supporting facilities and the like.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a compact MBBR and super-efficient separation coupled degree of depth nitrogen and phosphorus removal processing system, includes oxygen deficiency pure film MBBR pond, good oxygen pure film MBBR pond, magnetism kind loading pond, flocculation basin and the sedimentation tank that consecutive order links to each other, wherein, the sedimentation tank is connected to magnetism kind piece-rate system, magnetism kind piece-rate system still with magnetism kind loading pond links to each other, oxygen deficiency pure film MBBR pond, good oxygen pure film MBBR pond, magnetism kind loading pond, flocculation basin still are connected with carbon source dosing system, coagulant dosing system, magnetism kind dosing system and coagulant aid dosing system respectively.
The technical scheme of the utility model also includes that a water inlet, an anoxic mixed liquid outlet and a carbon source adding inlet are arranged on the anoxic pure membrane MBBR tank, sewage enters the anoxic pure membrane MBBR tank through the water inlet, and a carbon source is added into the anoxic pure membrane MBBR tank through the carbon source adding inlet; an anoxic stirrer is further arranged in the anoxic pure film MBBR tank, and bottom perforation aeration can be added according to needs.
The technical scheme of the utility model still include, set up the mixed liquid entry of oxygen deficiency, the mixed liquid export of good oxygen, coagulant on the pure membrane MBBR pond of good oxygen and throw the entry, the mixed liquid entry of oxygen deficiency links to each other with the mixed liquid export of oxygen deficiency on the pure membrane MBBR pond of oxygen deficiency, and the coagulant is thrown to the pure membrane MBBR pond of good oxygen through throwing the entry of coagulant throwing, the bottom in the pure membrane MBBR pond of good oxygen still is equipped with aeration systems, and aeration systems adopts perforation aeration or micropore aeration or both combinations, multiplicable agitator that sets up as required.
The technical scheme of the utility model still include, set up the magnetism kind on the magnetism kind loading pond and throw into entry, retrieve magnetism kind entry, mud backward flow entry, good oxygen mixed liquid entry and the export of magnetism kind loading pond, the magnetism kind is thrown into the entry through the magnetism kind and is added into the magnetism kind loading pond, and good oxygen mixed liquid entry links to each other with the good oxygen mixed liquid export on the good oxygen pure film MBBR pond, the inside in magnetism kind loading pond sets up vertical agitator.
The technical scheme of the utility model still include, it throws entry, magnetism kind loading pond entry and flocculation basin export to set up the coagulant aid on the flocculation basin, and the coagulant aid throws to the flocculation basin in throwing the entry through the coagulant aid, and magnetism kind loading pond entry is connected with the export of magnetism kind loading pond on the magnetism kind loading pond, the inside of flocculation basin sets up vertical agitator.
The technical proposal of the utility model also comprises that a flocculation tank inlet, a sludge return outlet, a residual sludge outlet and a sedimentation tank outlet are arranged on the sedimentation tank, the flocculation tank inlet is connected with the flocculation tank outlet on the flocculation tank, and the sludge return outlet is connected with the sludge return inlet; the sedimentation tank is selected from one of a horizontal flow sedimentation tank, a vertical flow sedimentation tank, an inclined tube (plate) sedimentation tank and a radial flow sedimentation tank.
The technical scheme of the utility model still include, magnetic seed piece-rate system includes high shearing machine and magnetic separation machine, sets up excess sludge inlet, retrieves magnetic seed export and mud discharge outlet on the magnetic seed piece-rate system, and magnetic seed piece-rate system's excess sludge inlet is connected with the excess sludge outlet on the sedimentation tank, retrieves magnetic seed export and retrieves magnetic seed entry and is connected, and mud is through mud discharge outlet discharge system.
The technical scheme of the utility model still include, the magnetic seed is thrown and is thrownThe main component of the magnetic seeds added in the system is Fe3O4The particle size range is 40-200 mu m; flocculating agent added in the coagulant adding system is selected from PAC and FeSO4、FeCl2、Fe2(SO4)3、FeCl3One or more of polyferric sulfate (PFS), polyaluminum ferric chloride (PAFC), and polyaluminum ferric silicate (PSAF).
The technical scheme of the utility model still includes, it has the suspension carrier all to fill in oxygen deficiency pure film MBBR pond, the good oxygen pure film MBBR pond, and the filling rate of suspension carrier is 15% -67% in the oxygen deficiency pure film MBBR pond, and the load of membrane face is 0.4-2.8 gN/(m/(m)2D); the filling rate of the suspension carrier in the aerobic pure membrane MBBR tank is 15 to 67 percent, and the membrane surface load is 0.4 to 1.2 gN/(m)2·d)。
The technical scheme of the utility model still include, the shape of suspension carrier is at least one in column, globular, the rectangle, and the material of suspension carrier is at least one in HDPE, PE, PUR, PP and the PU, and diameter or length of side are 10 ~ 40 mm.
The utility model discloses in, each part's working process does:
in the anoxic pure membrane MBBR tank, after sewage is mixed with an external carbon source, denitrifying functional bacteria attached to a suspension carrier perform denitrification by using nitrate in the sewage and a supplemented organic carbon source so as to enhance system denitrification, and then automatically flow to the aerobic pure membrane MBBR tank.
Nitrifying or decarbonizing ammonia nitrogen, COD and the like in the anoxic mixed liquor by nitrifying functional bacteria attached to the suspension carriers in the aerobic pure membrane MBBR tank to ensure that the ammonia nitrogen and the COD are discharged up to the standard; and simultaneously, a coagulant is added at the tail end of the aerobic pure membrane MBBR tank to provide complete mixing conditions and sufficient reaction time, enhance chemical phosphorus removal and reduce a mixing tank and supporting facilities thereof in the super-efficient separation system.
The super-efficient separation system is provided with a magnetic seed loading tank, a flocculation tank, a sedimentation tank and a magnetic seed separation system, and the specific gravity and the sedimentation effect of sludge flocs are improved by adding magnetic seeds and coagulant aids. The specific working process of the super-efficient separation system is as follows:
in the magnetic seed loading pool, the magnetic seeds, the recovered magnetic seeds, the returned sludge and the aerobic mixed liquid are further fully mixed and reacted by a vertical stirrer, so that the phosphorus removal efficiency is improved, and the dosage of the medicament is reduced.
In the flocculation tank, the sludge flocs and magnetic seeds are fully combined by adding a coagulant aid PAM, and large and compact sludge flocs are formed to improve the specific gravity of the sludge flocs, strengthen the sedimentation effect of the sludge flocs and then flow to the sedimentation tank automatically.
In the sedimentation tank, carrying out sludge-water separation on the mixed liquid in the flocculation tank, wherein one part of the separated residual sludge containing magnetic seeds flows back to the magnetic seed loading tank, and the other part of the separated residual sludge enters a magnetic separation system; the reflux sludge containing magnetic seeds is refluxed to the magnetic seed loading pool, so that the dephosphorization efficiency can be improved, and the dosage of the medicament can be reduced.
In the magnetic seed separation system, the residual sludge containing magnetic seeds is sequentially stripped from the discharged sludge through a high shear machine, then the magnetic seeds are separated from the discharged sludge through a magnetic separator, the separated magnetic seeds flow back to a magnetic seed loading pool, and the separated discharged sludge is discharged out of the system.
The beneficial effects of the utility model are that, compare with conventional nitrogen and phosphorus removal technology, the utility model discloses have:
1) the high integration of the MBBR technology and the magnetic separation technology breaks through the limitation of the conventional denitrification and dephosphorization technology on the removal of TN and TP so as to strengthen the removal of pollutants such as TN, SS, TP and the like, and can stably reach the discharge standard of quasi IV and above.
2) The biofilm carried by the suspended carrier in the MBBR forms an aerobic/anoxic environment in space, provides a good micro environment for the generation of synchronous nitrification and denitrification, can reduce the dosage of an external carbon source and reduce the medicine consumption.
3) Coagulant is added at the tail end of the aerobic pure membrane MBBR tank, so that a mixing tank and supporting facilities in the traditional super-efficient separation system can be reduced, complete mixing conditions and sufficient reaction time are provided, the process flow is compact, and energy conservation and consumption reduction are realized.
4) The method has the advantages of high process integration level, good effect, reliable operation, convenient management, land occupation saving and the like.
In conclusion, the front section of the system process takes an A/O pure membrane MBBR process as a core, and by adding a suspension carrier into an anoxic/aerobic tank, bacteria with denitrification or nitrification functions are loaded on the suspension carrier, so that the denitrification and carbon removal of the system are enhanced; adding a coagulant into the aerobic pure membrane MBBR tank to strengthen the chemical phosphorus removal of the system and reduce the setting of a coagulant mixing tank; the back section of the system process takes an ultra-efficient separation process as a core to strengthen the removal of pollutants such as COD, TP, SS and the like by the system.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the embodiment.
Wherein, 1-water inlet pipe; 2-anoxic pure membrane MBBR pool; 3-an anoxic stirrer; 4-carbon source adding system; 5-anoxic suspension vehicle; 6-aerobic pure membrane MBBR tank; 7-a coagulant adding system; 8-aerobic suspension carrier; 9-an aeration system; 10-a blower; 11-magnetic seed loading pool; 12-a vertical stirrer; 13-a magnetic seed adding system; 14-a flocculation tank; 15-coagulant aid adding system; 16-a sedimentation tank partition; 17-a sedimentation tank; 18-heavy duty mud scrapers; 19-sludge bucket; 20-inclined tube; 21-collecting channel; 22-water outlet pipe; 23-sludge reflux pump; 24-excess sludge pipe; 25-return sludge pipe; 26-high shear; 27-a magnetic separator; 28-recovery of magnetic seed replenishing pipe; 29-discharge sludge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in figure 1, the compact MBBR and super-efficient separation coupled deep nitrogen and phosphorus removal treatment system comprises an anoxic pure film MBBR tank, an aerobic pure film MBBR tank, a magnetic seed loading tank, a flocculation tank and a sedimentation tank which are sequentially connected, wherein the sedimentation tank is connected to the magnetic seed separation system, the magnetic seed separation system is further connected with the magnetic seed loading tank, and the anoxic pure film MBBR tank, the aerobic pure film MBBR tank, the magnetic seed loading tank and the flocculation tank are further respectively connected with a carbon source dosing system, a coagulant dosing system, a magnetic seed dosing system and a coagulant aid dosing system.
Particularly, a water inlet, an anoxic mixed liquid outlet and a carbon source adding inlet are arranged on the anoxic pure membrane MBBR tank, sewage enters the anoxic pure membrane MBBR tank through the water inlet, and a carbon source is added into the anoxic pure membrane MBBR tank through the carbon source adding inlet; an anoxic stirrer is further arranged in the anoxic pure film MBBR tank, and bottom perforation aeration can be additionally arranged according to needs.
Particularly, an anoxic mixed liquid inlet, an aerobic mixed liquid outlet and a coagulant adding inlet are formed in the aerobic pure film MBBR tank, the anoxic mixed liquid inlet is connected with the anoxic mixed liquid outlet in the anoxic pure film MBBR tank, the coagulant is added into the aerobic pure film MBBR tank through the coagulant adding inlet, an aeration system is further arranged at the bottom of the aerobic pure film MBBR tank, perforated aeration is adopted by the aeration system, and a stirrer can be additionally arranged as required.
Particularly, the magnetic seed loading pool is provided with a magnetic seed adding inlet, a magnetic seed recovery inlet, a sludge return inlet, an aerobic mixed liquid inlet and a magnetic seed loading pool outlet, the magnetic seeds are added into the magnetic seed loading pool through the magnetic seed adding inlet, the aerobic mixed liquid inlet is connected with the aerobic mixed liquid outlet on the aerobic pure film MBBR pool, and a vertical stirrer is arranged inside the magnetic seed loading pool.
Particularly, the flocculation tank is provided with a coagulant aid adding inlet, a magnetic seed loading tank inlet and a flocculation tank outlet, the coagulant aid is added into the flocculation tank through the coagulant aid adding inlet, the magnetic seed loading tank inlet is connected with the magnetic seed loading tank outlet on the magnetic seed loading tank, and a vertical stirrer is arranged inside the flocculation tank.
Particularly, a flocculation tank inlet, a sludge backflow outlet, a residual sludge outlet and a sedimentation tank outlet are arranged on the sedimentation tank, the flocculation tank inlet is connected with the flocculation tank outlet on the flocculation tank, and the sludge backflow outlet is connected with the sludge backflow inlet; the sedimentation tank is a horizontal flow sedimentation tank.
Particularly, the magnetic seed separation system comprises a high shear and a magnetic separator, wherein the magnetic seed separation system is provided with a residual sludge inlet, a recovered magnetic seed outlet and a sludge discharge outlet, the residual sludge inlet of the magnetic seed separation system is connected with the residual sludge outlet on the sedimentation tank, the recovered magnetic seed outlet is connected with the recovered magnetic seed inlet, and the sludge is discharged out of the system through the sludge discharge outlet; the magnetic seed and the discharged sludge in the residual sludge collected at the bottom of the sedimentation tank are peeled off by a high shear, the magnetic seed and the discharged sludge are separated by a magnetic separator, and then the recovered magnetic seed flows back to the magnetic seed loading tank.
Particularly, the main component of the magnetic seeds added in the magnetic seed adding system is Fe3O4The particle size range is 40-200 mu m; PAC is used as flocculant added in the coagulant adding system.
Particularly, the anoxic pure membrane MBBR tank and the aerobic pure membrane MBBR tank are both filled with suspension carriers, the filling rate of the suspension carriers in the anoxic pure membrane MBBR tank is 30 percent, and the membrane surface load is 1.5 gN/(m)2D); the filling rate of the suspension carrier in the aerobic pure membrane MBBR tank is 40 percent, and the membrane surface load is 1.2gN/(m2·d)。
In particular, the suspension carrier is columnar, and the suspension carrier is made of HDPE and has a diameter of 25 mm.
Example 2
The difference from example 1 is that:
the bottom of the aerobic pure membrane MBBR tank is also provided with an aeration system which adopts micropore aeration,
the sedimentation tank adopts a vertical flow sedimentation tank.
And the flocculating agent added in the flocculating agent adding system is PSAF.
The anoxic pure membrane MBBR tank and the aerobic pure membrane MBBR tank are both filled with suspension carriers, the filling rate of the suspension carriers in the anoxic pure membrane MBBR tank is 25 percent, and the membrane surface load is 0.8 gN/(m)2D); the filling rate of the suspension carrier in the aerobic pure membrane MBBR tank is 25 percent, and the membrane surface load is 0.8gN/(m2·d)。
The suspension carrier is spherical, and is made of PP and has a diameter of 38 mm.
Example 3
The difference from example 1 is that:
the bottom of the aerobic pure membrane MBBR tank is also provided with an aeration system, and the aeration system adopts perforation and micropore combined aeration.
The sedimentation tank is an inclined tube (plate) sedimentation tank.
Fe is selected as the flocculating agent added in the flocculating agent adding system2(SO4)3。
The anoxic pure membrane MBBR tank and the aerobic pure membrane MBBR tank are both filled with suspension carriers, the filling rate of the suspension carriers in the anoxic pure membrane MBBR tank is 35 percent, and the membrane surface load is 1.2 gN/(m)2D); the filling rate of the suspension carrier in the aerobic pure membrane MBBR tank is 35 percent, and the membrane surface load is 0.6gN/(m2·d)。
The suspension carrier is rectangular, and is made of PUR with a diameter of 20 mm.
Examples
As shown in fig. 2, a compact MBBR and super-efficient separation coupled deep denitrification and dephosphorization treatment system comprises an anoxic pure film MBBR tank 2, an aerobic pure film MBBR tank 6, a magnetic seed loading tank 11, a flocculation tank 14 and a sedimentation tank 17 which are sequentially connected, wherein the sedimentation tank 17 is connected to a magnetic seed separation system, the magnetic seed separation system is further connected to the magnetic seed loading tank 11, and the anoxic pure film MBBR tank 2, the aerobic pure film MBBR tank, the magnetic seed loading tank 11 and the flocculation tank 14 are further respectively connected to a carbon source dosing system 4, a coagulant dosing system 7, a magnetic seed dosing system 13 and a coagulant aid dosing system 15; the anoxic pure membrane MBBR tank 2, the aerobic pure membrane MBBR tank 6, the magnetic seed loading tank 11, the flocculation tank 14 and the sedimentation tank 17 are communicated with each other in sequence through water through holes on the wall of the tank body.
The pure membrane MBBR of oxygen deficiency pond is last to set up inlet tube 1, and inlet tube 1 sets up on the pure membrane MBBR of oxygen deficiency pond 2 upper portion, and oxygen deficiency agitator 3 is located the inside in pure membrane MBBR of oxygen deficiency pond 2, and carbon source dosing system 4 sets up in the top in pure membrane MBBR of oxygen deficiency pond 2, and oxygen deficiency suspension carrier 5 is filled in pure membrane MBBR of oxygen deficiency pond 2.
In particular, the anoxic suspension carrier 5 is a columnar suspension carrier, is made of HDPE and has a diameter of 25 mm; the filling rate of the anoxic suspension carrier 5 is 40 percent; the carbon source added in the carbon source adding system 4 is glucose.
An aerobic suspension carrier 8 is filled in the aerobic pure membrane MBBR tank 6, a coagulant adding system 7 is arranged above the aerobic pure membrane MBBR tank, an aeration system 9 is arranged at the bottom of the aerobic pure membrane MBBR tank 6, and the aeration system 9 is connected with an air blower 10.
Particularly, the aerobic suspension carrier 8 is a columnar suspension carrier, the material is HDPE, the diameter is 25mm, the filling rate of the aerobic suspension carrier 8 is 50%, the coagulant added by the coagulant adding system 7 is PAC, and the aeration system 9 adopts perforation and micropore combined aeration.
A vertical stirrer 12 is arranged in the magnetic seed loading pool 11, a magnetic seed adding system 13 is arranged above the magnetic seed loading pool 11, and the air blower 10 is positioned below the magnetic seed loading pool 11.
In particular, the magnetic seed is Fe as the main component3O4The particle size range is 40-200 μm.
A vertical stirrer 12 is arranged in the flocculation tank 14, and a magnetic seed adding system 13 is arranged above the flocculation tank 14;
the sedimentation tank 17 adopts an inclined tube sedimentation tank, and a sedimentation tank clapboard 16, a heavy-load mud scraper 18, a sludge hopper 19, an inclined tube 20, a water collecting channel 21 and a water outlet pipe 22 are arranged in the sedimentation tank 17; the bottom of the sedimentation tank 17 is provided with a sludge hopper 19, a heavy-duty mud scraper 18 is arranged above the sludge hopper 19, an inclined pipe 20 is arranged at the middle upper part of the sedimentation tank 17, the inclined pipe 20 is also connected with the sedimentation tank partition plate 16, a water collecting channel 21 is arranged right above the inclined pipe 20, and a water outlet pipe 22 is communicated with the water collecting channel 21.
Particularly, a sludge return pump 23 is connected with a sludge hopper 19 of the sedimentation tank 17, a sludge return pipeline is divided into two paths, and the flow rate is regulated and controlled through the opening degree of a valve; wherein, the return sludge pipe 25 is connected with the magnetic seed loading tank 11, the residual sludge pipe 24 is connected with the high shearing machine 26, the high shearing machine 26 is connected with the magnetic separator 27, and the high shearing machine 26 and the magnetic separator 27 are positioned above the sedimentation tank 17; the recovered magnetic species separated by the magnetic separator 27 flows into the magnetic species loading cell 11 through the recovered magnetic species replenishing pipe 28, and the separated discharged sludge is discharged out of the system through the discharged sludge pipe 29.
A certain village and town sewage treatment project for treatingAnd (5) discharging water from the secondary sedimentation tank. The design water amount is 2000m3And d, the treated effluent meets the quasi III effluent requirement. The specific data are shown in the following table:
TABLE 1 average Water quality of wastewater treatment project in certain villages and towns
Note: the data is the average inlet and outlet water quality of the system.
The project can effectively remove various pollutants in water, and various effluent indexes are superior to the emission limit requirement of quasi III effluent; for CODcr and BOD5The removal rates of ammonia nitrogen, total phosphorus and SS are respectively 40.64%, 61.19%, 90.45%, 71.53%, 84.44% and 78.65%. Further reducing the emission of pollutants in the effluent and reducing the influence on the environment. Wherein CODcr reduces BOD by 8.40 tons/year5Emission reduction is 2.99 tons/year, ammonia nitrogen emission reduction is 1.45 tons/year, total nitrogen emission reduction is 7.15 tons/year, total phosphorus emission reduction is 0.28 tons/year, and SS emission reduction is 11.02 tons/year.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a compact MBBR and super-efficient separation coupled's degree of depth nitrogen and phosphorus removal processing system which characterized in that, includes oxygen deficiency pure film MBBR pond, good oxygen pure film MBBR pond, magnetism kind loading pond, flocculation basin and the sedimentation tank that links to each other in proper order, wherein, the sedimentation tank is connected to magnetism kind piece-rate system, magnetism kind piece-rate system still with magnetism kind loading pond links to each other, oxygen deficiency pure film MBBR pond, good oxygen pure film MBBR pond, magnetism kind loading pond, flocculation basin still are connected with carbon source dosing system, coagulant dosing system, magnetism kind dosing system and coagulant aid dosing system respectively.
2. The compact MBBR and super-efficient separation coupled deep nitrogen and phosphorus removal treatment system of claim 1, wherein the anoxic pure membrane MBBR tank is provided with a water inlet, an anoxic mixed liquid outlet and a carbon source adding inlet, sewage enters the anoxic pure membrane MBBR tank through the water inlet, and a carbon source is added into the anoxic pure membrane MBBR tank through the carbon source adding inlet; an anoxic stirrer is further arranged in the anoxic pure film MBBR tank, and bottom perforation aeration can be added according to needs.
3. The system of claim 1, wherein the aerobic membrane MBBR tank is provided with an anoxic mixed liquid inlet, an aerobic mixed liquid outlet and a coagulant adding inlet, the anoxic mixed liquid inlet is connected with the anoxic mixed liquid outlet on the anoxic membrane MBBR tank, the coagulant is added into the aerobic membrane MBBR tank through the coagulant adding inlet, the bottom of the aerobic membrane MBBR tank is further provided with an aeration system, the aeration system adopts perforation aeration or micropore aeration or a combination of the perforation aeration and the micropore aeration, and a stirrer can be additionally arranged according to requirements.
4. The system of claim 1, wherein the magnetic seed loading tank is provided with a magnetic seed feeding inlet, a magnetic seed recovery inlet, a sludge return inlet, an aerobic mixed liquid inlet and a magnetic seed loading tank outlet, magnetic seeds are fed into the magnetic seed loading tank through the magnetic seed feeding inlet, the aerobic mixed liquid inlet is connected with the aerobic mixed liquid outlet on the aerobic pure membrane MBBR tank, and a vertical stirrer is arranged inside the magnetic seed loading tank.
5. The system of claim 1, wherein the flocculation tank is provided with a coagulant aid adding inlet, a magnetic seed loading tank inlet and a flocculation tank outlet, the coagulant aid is added into the flocculation tank through the coagulant aid adding inlet, the magnetic seed loading tank inlet is connected with the magnetic seed loading tank outlet on the magnetic seed loading tank, and a vertical stirrer is arranged inside the flocculation tank.
6. The compact MBBR and ultra-efficient separation coupled deep denitrification and dephosphorization treatment system of claim 1, wherein the sedimentation tank is provided with a flocculation tank inlet, a sludge return outlet, a residual sludge outlet and a sedimentation tank outlet, and the flocculation tank inlet is connected with the flocculation tank outlet on the flocculation tank; the sedimentation tank is selected from one of a horizontal flow sedimentation tank, a vertical flow sedimentation tank, an inclined tube (plate) sedimentation tank and a radial flow sedimentation tank.
7. The system of claim 1, wherein the magnetic separation system comprises a high shear and a magnetic separator, the magnetic separation system is provided with a residual sludge inlet, a recovered magnetic seed outlet and a sludge discharge outlet, the residual sludge inlet of the magnetic separation system is connected with the residual sludge outlet on the sedimentation tank, the recovered magnetic seed outlet is connected with the recovered magnetic seed inlet, and the sludge is discharged from the system through the sludge discharge outlet.
8. The system of claim 1, wherein the magnetic species added in the magnetic species adding system comprises Fe as a main component3O4The particle size range is 40-200 μm.
9. The system of claim 3, wherein the anoxic and aerobic MBBR tank and the aerobic MBBR tank are filled with suspension carriers, the filling rate of the suspension carriers in the anoxic MBBR tank is 15% -67%, and the membrane surface load is 0.4-2.8 gN/(m)2D); the filling rate of the suspension carrier in the aerobic pure membrane MBBR tank is 15 to 67 percent, and the membrane surface load is 0.4 to 1.2 gN/(m)2·d)。
10. The system of claim 9, wherein the suspension carrier is at least one of cylindrical, spherical and rectangular in shape, and has a diameter or side length of 10-40 mm.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110590077A (en) * | 2019-10-15 | 2019-12-20 | 青岛思普润水处理股份有限公司 | Compact MBBR and super-efficient separation coupled deep nitrogen and phosphorus removal treatment system |
| CN112209559A (en) * | 2020-11-04 | 2021-01-12 | 中建环能科技股份有限公司 | Wastewater treatment method, magnetic separation system and integrated magnetic separation device |
| CN113105064A (en) * | 2021-03-09 | 2021-07-13 | 江苏裕隆环保有限公司 | Pure membrane MBBR (moving bed biofilm reactor) coupled carbon capture autotrophic nitrogen removal system and use method thereof |
| CN113149332A (en) * | 2021-03-09 | 2021-07-23 | 江苏裕隆环保有限公司 | Modular MBBR (moving bed biofilm reactor) deep nitrogen and phosphorus removal treatment system and use method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110590077A (en) * | 2019-10-15 | 2019-12-20 | 青岛思普润水处理股份有限公司 | Compact MBBR and super-efficient separation coupled deep nitrogen and phosphorus removal treatment system |
| CN112209559A (en) * | 2020-11-04 | 2021-01-12 | 中建环能科技股份有限公司 | Wastewater treatment method, magnetic separation system and integrated magnetic separation device |
| CN113105064A (en) * | 2021-03-09 | 2021-07-13 | 江苏裕隆环保有限公司 | Pure membrane MBBR (moving bed biofilm reactor) coupled carbon capture autotrophic nitrogen removal system and use method thereof |
| CN113149332A (en) * | 2021-03-09 | 2021-07-23 | 江苏裕隆环保有限公司 | Modular MBBR (moving bed biofilm reactor) deep nitrogen and phosphorus removal treatment system and use method thereof |
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