CN101553436B - Apparatus for treating high concentration organic waste water and method of treating high concentration organic waste water using the same - Google Patents
Apparatus for treating high concentration organic waste water and method of treating high concentration organic waste water using the same Download PDFInfo
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- CN101553436B CN101553436B CN200780044353XA CN200780044353A CN101553436B CN 101553436 B CN101553436 B CN 101553436B CN 200780044353X A CN200780044353X A CN 200780044353XA CN 200780044353 A CN200780044353 A CN 200780044353A CN 101553436 B CN101553436 B CN 101553436B
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- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/108—Immobilising gels, polymers or the like
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- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/109—Characterized by the shape
-
- 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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
- C02F3/121—Multistep treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biological Treatment Of Waste Water (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
Abstract
An apparatus for treating high concentration organic waste water and a method of treating the organic waste water using the same are provided. The apparatus for treating high concentration organic waste water includes a carrier reactor that receives organic waste water to be treated and oxidation decomposes organic materials included in organic waste water using aerobic microorganisms adhered to carriers, wherein the carriers are foamed polymer particles on which a mixture of at least one adhesive resin and finely ground active carbon with a mixing ratio of 60:40 to 50:50 by weight is coated. The apparatus for treating high concentration organic waste water does not require sludge recycle, can be readily manufactured using an existing apparatus for treating high concentration organic wastewater, and thus, manufacturing costs can be reduced, and can operate at high organic material loading and a high BOD volume loading.
Description
Technical field
The present invention relates to a kind of device for the treatment of high concentrated organic wastewater and utilize this device to process the method for high concentrated organic wastewater, more specifically, relate to a kind of such device for the treatment of high concentrated organic wastewater, this device need not mud (sludge) recirculation, can easily change existing utility, can reduce manufacturing cost, and can move (operation) with high organic loading and high biological oxygen demand (BOD) volume load (volumetric loading), and relate to a kind of method of utilizing this device to process high concentrated organic wastewater.
Background technology
Usually, in processing the organic waste water process, adopted activated sludge process (activesludge method).This activated sludge process is the method for processing organic wastewater that in preferred aerobic environment (aerobic environment) the fully processing of organic waste water is adopted, and wherein said organic waste water is by preliminary treatment or also not by preliminary treatment.
In traditional activated sludge process, organic waste water enters continuously aeration tank (aeration tank, aeration tank) and microorganism grows by the organic materials in the picked-up organic waste water.The microorganism that grows condenses and is deposited in the final settling vessel (final precipitator).A sedimentary part that precipitates is recirculated to aeration tank with the active sludge state, and other parts are dropped as surplus mud.By this way, decompose organic materials in the organic waste water by the microorganism that in aeration tank, keeps proper level, and removed nitrogen and phosphorus.
Activated sludge process has been regarded as processing the effective ways of organic waste water for a long time.Yet activated sludge process is not enough to effectively remove organic materials from the waste water that comprises high density (highly enriched) organic materials, and activated sludge process produces a large amount of surplus muds.Especially, in activated sludge process, enter if comprise the waste water of high organic loading, then in settling vessel, the sludge bulking phenomenon can occur.Therefore, when using activated sludge process, be difficult to process the large variation of high organic loading.
Develop biomembrance process (biofilm process) and substituted traditional activated sludge process.
From utilize aeration tank in floating microorganism to process the activated sludge process of organic contaminated materials different, biomembrance process is that the high concentration microorganism that a kind of utilization is attached to carrier comes pack processing to contain the method for the organic waste water of organic pollutant.Biomembrance process can reduce the volume of reactor greatly owing to its high treatment efficiency, and can prevent in advance the sludge bulking phenomenon.
In biomembrance process, need in aeration tank, be kept for continuously processing the microorganism of the proper level of waste water.Therefore, being used for the floating growth of microorganism or the microbial carrier of apposition growth is prerequisite.
The processing efficiency of the biomembrance process in processing organic waste water depends primarily on the efficient of the carrier that places aeration tank.Yet, the setting of carrier in aeration tank may not be guaranteed to be higher than the processing efficiency of activated sludge process or prevent the sludge bulking phenomenon, this is because in biomembrance process, owing to there are defective such as the filtration medium obstructing problem in the hypertrophy of saprophytic microbe or biomembranous disengaging.
The carrier that uses in biomembrance process mainly is sponge plastics, activated carbon fiber, polyvinyl alcohol and gac.Yet the carrier that is formed by above-mentioned materials does not have sufficient hydrophilicity, and therefore floating microorganism can't easily be attached to carrier.The microorganism that is not attached to carrier has the slowly speed of growth, and when the organic waste water device moved continuously, microorganism was discharged from from aeration tank.Therefore, must select suitable material and be suitable for the microorganism carrier shape, and carrier is being applied in the application of actual treatment, it is highly important that, when the amount of the microorganism that will be attached to carrier remains on proper level, operation organic waste water device under the optimum working conditions of carrier.
Other method is to utilize membrane bioreactor (MBR) treatment technology to process organic waste water.The MBR treatment technology is developed to utilize separatory membrane to solve sedimentation problem, and this problem has limited the traditional active sludge method.In the MBR treatment technology, when keeping high microorganism concentration, utilize separatory membrane forcibly separate microorganism and treated waste water.The advantage of this technology is, can reduce the volume of reactor by keeping high microorganism concentration, and whether no matter the sludge bulking phenomenon occur all can discharge treated waste water.Yet at high organic materials load (F/M ratio) afterwards, the pollution of separatory membrane is very serious.
Summary of the invention
Technical scheme
In order to solve above-mentioned and/or other problems, the invention provides a kind of device for the treatment of high concentrated organic wastewater, this device need not mud recirculation, can easily change existing utility, can reduce manufacturing cost and can move with high organic loading and high biological oxygen demand (BOD) volume load, and a kind of method of utilizing this device to process high concentrated organic wastewater.
According to an aspect of the present invention, a kind of organic waste-water treating apparatus is provided, this device comprises the carrier reactor, this carrier reactor receives pending organic waste water, and utilize and to be attached to the aerobic microorganism of carrier and oxygenolysis is included in the organic materials in the organic waste water, wherein, carrier is the foamable polymer particle, is coated with on this particle to be selected from by acrylic resin, ethane-acetic acid ethyenyl ester resin (ethylenevinylacetate resin), furane resin, resol, urea-formaldehyde resin, melamine resin, at least a binder resin in the group that forms with polyamide resin and the gac of fine grinding are with the mixture of 60: 40 to 50: 50 mixed weight ratio.
According to another aspect of the present invention, a kind of organic waste-water treating apparatus is provided, this device comprises the carrier reactor, this carrier reactor receives pending organic waste water, and utilize and to be attached to the aerobic microorganism of carrier and oxygenolysis is included in the organic materials in the organic waste water, wherein, carrier is polyurethane(s) (urethane) carrier for attached microbial, and this carrier has 50 to 96% water content, 10 to 40 ° contact angle and 0.015 to 0.045g/cm
3Apparent density, this carrier is the foaming hydrophilic polyurethane particle with network structure, its polyvalent alcohol by making each molecule have 2 oh groups and having 800 to 5000g/mol number-average molecular weight, each molecule has the linking agent of 3 to 6 oh groups, alkanediol chain extension agent (alkanediol chain extender) with 1 to 6 carbon atom, and each molecule has aromatic polyisocyanate (aromatic polyisocyanate) reaction of 2 to 3 isocyanate groups and obtains, and polyvalent alcohol is to be selected from by PEG, a kind of in the group that PPG and PTMG form.
According to an aspect of the present invention, a kind of method of processing organic waste water is provided, comprise: by pending organic waste water is incorporated in the carrier reactor, utilize the aerobic microorganism that is attached to the polyurethane foam carrier to come preliminary oxygenolysis to be included in organic materials in the organic waste water; Be incorporated in the activated sludge reactor by the organic waste water that will in the carrier reactor, process, utilize floating aerobic microorganism to come oxygenolysis for the second time to be retained in organic materials in the treated organic waste water; And be incorporated into the mud that precipitates in the sludge settling device in the treated organic waste water by the organic waste water that will in activated sludge reactor, process, and the part in the precipitated mud is recycled to activated sludge reactor and abandons remaining mud.
According to another aspect of the present invention, a kind of method of processing organic waste water is provided, comprise: by pending organic waste water is incorporated in the carrier reactor, utilize the aerobic microorganism that is attached to the polyurethane foam carrier to come preliminary oxygenolysis to be included in organic materials in the organic waste water; And be introduced into membrane bioreactor (MBR) and with separatory membrane aerobic microorganism and treated organic waste water separated by the organic waste water that will in the carrier reactor, process and utilize floating microorganism to come oxygenolysis for the second time to be retained in organic materials in the treated organic waste water.
Beneficial effect
According to the present invention, a kind of device for the treatment of high concentrated organic wastewater can be provided, wherein, mud recirculation is optional, and a kind of method of processing organic waste water.
According to the present invention, can easily replace existing device, therefore, can make for the treatment of the device of high concentrated organic wastewater and the method for processing organic waste water with low cost.
According to the present invention, the method that a kind of device for the treatment of high concentrated organic wastewater can be provided and process organic waste water, these apparatus and method can be moved with high organic materials load and high BOD volume load.
According to the present invention, the method that a kind of device for the treatment of high concentrated organic wastewater can be provided and process organic waste water, it can prevent the sludge bulking phenomenon.
Description of drawings
By the illustrative embodiments that invention will be described in detail with reference to the attached drawing, above and other feature of the present invention and advantage will become more obvious, in the accompanying drawings:
Fig. 1 is the synoptic diagram for the treatment of the device of high concentrated organic wastewater according to embodiment of the present invention;
Fig. 2 shows when the device that uses Fig. 1 is processed high concentrated organic wastewater the histogram according to the BOD processing efficiency of BOD loading;
Fig. 3 is the synoptic diagram for the treatment of the device of high concentrated organic wastewater according to embodiment of the present invention, and this device comprises the device as Fig. 1 of pretreatment unit;
Fig. 4 is the synoptic diagram for the treatment of the device of high concentrated organic wastewater of another embodiment according to the present invention, and this device comprises the device as Fig. 1 of pretreatment unit.
Embodiment
Referring now to accompanying drawing the present invention will be described more fully, shown in the drawings of illustrative embodiments of the present invention.
Fig. 1 is the synoptic diagram for the treatment of the device of high concentrated organic wastewater according to embodiment of the present invention.
With reference to Fig. 1, comprise carrier reactor 20 for the treatment of the device of high concentrated organic wastewater.
High concentrated organic wastewater enters carrier reactor 20 by waste water import 10, be included in the aerobic microorganism that organic materials in the organic waste water is attached to carrier 21 and decompose, wherein the treated water that is decomposed of organic materials is discharged by treated water out 11.Carrier sieve 22 is placed on the side (sidepiece) of carrier reactor 20, that is, be formed with treated water out 11 at this sidepiece and leave carrier reactor 20 to prevent carrier 21 with treated water.Carrier sieve 22 comprises Porous Stainless Steel.And oxygen enters carrier reactor 20 by scatterer 23, in order to be provided to aerobic microorganism.Scatterer 23 is formed by ethylene-propylene-diene-monomer (EPDM) rubber, blocks to prevent scatterer 23.Here, term " treated water " expression treated organic waste water in carrier reactor 20.Air lift pump 24 prevents that carrier 21 is gathered on the sidepiece of carrier reactor 20, and impels carrier 21 along continuous straight runs smoothly mobile.More specifically, air lift pump 24 is used for continuously mobile vehicle 21, this vector aggregation is in the rearward end of carrier reactor 20, being that carrier sieve 22 is formed towards that end of the leading section of carrier reactor 20 on its of carrier reactor 20, also is that end that is formed with waste water import 10 on its of carrier reactor 20.And, in the formation that carrier 21 moves by air lift pump 24, can obtain to be attached to the aerobic suitable separation of carrier 21, can increase thus the efficient of decomposing the microorganism that is included in the organic materials in the organic waste water.
Carrier 21 can be the lip-deep carrier that the gac of wherein fine grinding is applied to foamable polymer.
In this case, carrier 21 has vesicular structure, and high concentration microorganism can be attached to this vesicular structure, and this vesicular structure has high absorbent capacity, therefore, for high loading and for impact load, can in the situation that does not have the sludge bulking phenomenon, process organic waste water.And in this case, carrier 21 provides about 35,000m for microorganism
2/ m
3Wide specific surface area.Therefore, high concentration microorganism can be attached to carrier 21, therefore, even under the floating microorganism concn condition identical with active sludge, also can greatly reduce the load of organic materials.
In this case, foamable polymer can have any structure, as long as this structure is porous, such as sponge, foam or non-woven fabrics, and foamable polymer can be formed by polyurethane(s), polystyrene or polyethylene.
And, the gac that comes coating fine to grind by sneaking into binder resin.Binder resin can be any resin, particularly, can be acrylic resin, ethane-acetic acid ethyenyl ester resin, furane resin, resol, urea-formaldehyde resin, melamine resin or polyamide resin.Here, the weight ratio of the gac of fine grinding and binder resin can be 40: 60 to 50: 50.
And the gac of fine grinding is more meticulous better, and for example, the gac of fine grinding can have 200 orders or less granularity.
Carrier 21 can be the polyurethane foam carrier with hydrophilicity.
In this case, carrier 21 has 50 to 96% water content, 10 to 40 ° contact angle, 0.015 to 0.045g/cm
3Apparent density.If water content less than 50% and contact angle above 40 °, then the hydrophilicity of carrier 21 is inadequate, therefore, when microorganism during by embedding, microbic activity reduces, and if water content surpass 70% and contact angle less than 10 °, then hydrophilicity is too strong, therefore, when processing organic waste water, the weather resistance of carrier 21 is owing to the hybrid motion in the carrier reactor 20 is lowered.If the apparent density of carrier 21 is less than 0.015g/cm
3, then porosity increases, therefore because the shearing force of water and air, the separation of the microorganism that adheres to occurs easily, and if apparent density surpass 0.045g/cm
3, then the surface that can be attached with the nitrate microorganism of carrier 21 is reduced.
In this case, carrier 21 can be the foaming hydrophilic polyurethane with network structure, and it has the aromatic polyisocyanate reaction that the linking agent of 3 to 6 oh groups, the alkanediol chain extension agent with 1 to 6 carbon atom and each molecule have 2 to 3 isocyanate groups by polyvalent alcohol, each molecule of making each molecule have 2 oh groups and to have a number-average molecular weight of 800 to 5000g/mol and obtains.If polyvalent alcohol has the number-average molecular weight less than 800g/mol, the polyurethane(s) that then obtains has the hydrophilicity of inadequate elasticity and reduction, if and polyvalent alcohol has the number-average molecular weight above 5000g/mol, then the mechanical characteristics such as tear strength is inadequate.
In this case, polyvalent alcohol can be to be selected from a kind of in the group that is comprised of PEG, PPG and PTMG.The polyurethane(s) that is formed by PEG, PPG or PTMG has high persistence (perennial), and can easily obtain.And polyurethane(s) is the polyvalent alcohol of polyester based, and therefore with polyester based polyol phase ratio, it has high hydrolysis patience.
According to the present invention, the mixture by using PEG, PPG and PTMG is with PEG: PPG: PTMG=10: that 7: 3 mixture ratio is made or by only utilizing polyvalent alcohol that PEG makes favourable for realizing the objective of the invention is.
By in network structure, forming polyurethane(s), the linking agent that each molecule has 3 to 6 oh groups has increased shock strength and the elasticity of polyurethane(s), particularly, increased the hydrophilicity of the polyurethane(s) carrier that obtains, this is because of linking agent so that a large amount of free hydroxyl keeps, and need not to participate in follow-up transfer reaction (chainextending reaction) and crosslinking reaction.Can be to be selected from least a in the group that is formed by sorbyl alcohol, glycerine and tetramethylolmethane (pentaeristol) with the example of in the present embodiment linking agent, but linking agent according to the present invention be not limited to this.Particularly, as linking agent, each molecule has the sorbyl alcohol of 6 oh groups for increasing the hydrophilicity of polyurethane(s) carrier, and based on the polyvalent alcohol of 100 weight parts, the content of sorbyl alcohol can be 1 to 5 weight part.If the content of sorbyl alcohol linking agent is less than 1 weight part, then the formation of network structure is inadequate, therefore, shock strength and elasticity are unsatisfactory, if and the sorbyl alcohol linking agent surpasses 5 weight parts, then hydrophilicity too increases, and therefore the physicals such as intensity affects adversely.
Porous hydrophilic polyurethane(s) carrier 21 is nitrated carriers, and has been developed the characteristic for Nitrosomonas, Nitrosomonas poor growth and can wash easily (wash off, wash away, wash out).Select the hydrophilic polyurethane foam to be as the reason that is used to form the material of carrier 21, Nitrosomonas can promptly be attached to the hydrophilic polyurethane foam, this is because the hydrophilic polyurethane foam has high water-retaining capacity, and because high oxygen absorption rate in the hydrophilic polyurethane, dissolved oxygen can also successfully be supplied to the internal surface of carrier 21.
Above-mentioned carrier 21 can be fluidized-bed, yet the state of support according to the present invention 21 is not limited to this.That is, the fixed bed carrier can be used for carrier reactor 20.
In 5 to 50% scope of the volume of carrier reactor 20, carrier reactor 20 is filled with carrier 21.If filling ratio is less than by volume 5%, then aerobic amount is too little, therefore, reduced the clearance (removing rate) of organic materials, if and filling ratio surpasses by volume 50%, then the volume of carrier 21 is excessive, so the circulation of carrier 21 in carrier reactor 20 has some setbacks, thus, reduced the clearance of organic materials.
Organic waste-water treating apparatus with above-mentioned structure has the following advantages.
At first, but exist existing organic waste-water treating apparatus existing organic waste-water treating apparatus to have poor efficiency owing to excessive load and having in the situation of serious sludge bulking phenomenon, existing organic waste-water treating apparatus can easily be converted to according to organic waste-water treating apparatus of the present invention.Therefore, the extension of existing organic waste-water treating apparatus is unnecessary.Therefore, when not being used for the space of extension, the present invention is very effective.
Secondly, be coated in lip-deep carrier (the Samsung Engineering of porous, expanded polymkeric substance by filling gac wherein, BioCAP), or carrier (the Samsung Engineering that is formed by hydrophilic polyurethane, BioPOP-Plus) can obtain stable treatment of Organic Wastewater efficient, especially, organic waste-water treating apparatus can be with 5 to 15kg/m
3It BOD volume load and moving.And, not only can be under the high BOD volume load but also can operation under high organic materials load according to organic waste-water treating apparatus of the present invention.
The 3rd, when utilizing according to organic waste-water treating apparatus processing organic waste water of the present invention, mud recirculation is unnecessary.If there is subsequent process (subsequent technique), then in subsequent process, can reduce hydraulic pressure retention time (HRT), therefore, can reduce the size for the reactor of subsequent process, this also is favourable for reducing constructions cost, and it will be described later.
The 4th, can be used for processing from the difficult Decomposition Wastewater that is difficult to biolytic each provenance (such as paper mill or Electronics Factory) (used water difficult to degradate, recalcitrant waste water) according to organic waste-water treating apparatus of the present invention.
Hereinafter, now, embodiments of the present invention will be described.Yet the present invention is not limited to following embodiment.
＜embodiment 〉
Using wherein, activated carbon is coated in the lip-deep carrier (Samsung Engineering, BioCAP) of porous polyurethane(s) as carrier 21.The filling ratio of carrier 21 be by volume carrier reactor 20 30%.
Fill in the organic waste-water treating apparatus of Fig. 1 after the carrier 21, preparation comprises the synthetic organic waste water of high density organic materials and is incorporated into organic waste-water treating apparatus.When synthetic organic waste water is ready, by control organic materials content and with BOD volume load (kg.BOD/m
3My god) change to 10 experiments of carrying out synthetic organic waste water from 8.Then, calculate the BOD processing efficiency by the BOD that measures the outflow stream strand (output stream thigh, outgoing stream) of from organic waste-water treating apparatus, discharging.Fig. 2 shows the figure according to the BOD processing efficiency of BOD volume load.
With reference to Fig. 2, shown slight difference according to the BOD processing efficiency of the organic waste-water treating apparatus of BOD volume load.Yet total efficiency is very high.That is, along with being increased to 10, BOD from 8, the BOD volume load removes efficient from 92% slight reduction to 90%.Yet in two BOD volume loads, showing substantially all is that high BOD removes efficient, that is, and at least 90%.
Fig. 3 is the synoptic diagram according to the high concentrated organic wastewater treatment unit of embodiment of the present invention, and this device comprises that the organic waste-water treating apparatus of Fig. 1 is as pretreatment unit.Among Fig. 3 the parts of same reference numerals represent with Fig. 1 in the essentially identical parts of parts.
Different being between organic waste-water treating apparatus among Fig. 3 and the organic waste-water treating apparatus of Fig. 1, in the organic waste-water treating apparatus of Fig. 3, activated sludge process is added in the organic waste-water treating apparatus of Fig. 1.That is, the organic waste-water treating apparatus of Fig. 1 is as pretreatment unit.
With reference to Fig. 3, comprise carrier reactor 20, activated sludge reactor 30 and sludge settling device 40 according to the organic waste-water treating apparatus of embodiment of the present invention.
The carrier reactor 20 of Fig. 3 has structure and the performance identical with the carrier reactor 20 of Fig. 1, therefore, will no longer repeat detailed description.
The organic waste water of processing in carrier reactor 20 enters into activated sludge reactor 30, and the position at these activated sludge reactor 30 places is retained in organic materials in the treated organic waste water by floating aerobic microorganism oxidation-decomposition.Carrier reactor 20 and activated sludge reactor 30 are connected to each other via treated water discharge pipe road 11.Scatterer 31 is installed in the activated sludge reactor 30.Scatterer 31 has structure and the operation identical with the scatterer 23 of Fig. 1, therefore will no longer repeat detailed description.
The organic waste water of processing in activated sludge reactor 30 enters the mud that sludge settling device 40 wherein precipitates in the treated water.The part of precipitated mud is recycled to activated sludge reactor 30 by mud recirculation conduit 14, and all excess sludges are discharged from by residue (surplus) mud discharge line 42.
And because the major part of organic waste water is decomposed in carrier reactor 20, therefore, the amount of the organic materials that will process in activated sludge reactor 30 reduces relatively.Because the amount of the organic materials that will process in activated sludge reactor 30 reduces relatively, so can reduce organic waste water by the required time of activated sludge reactor 30, namely therefore HRT, can reduce the size of activated sludge reactor 30.Activated sludge reactor 30 is connected with the sludge settling device and is connected via treated wastewater discharge pipe road 12, and the waste water of processing in sludge settling device 40 is discharged by treated wastewater discharge pipe road 13.
Fig. 4 is the synoptic diagram of the high concentrated organic wastewater treatment unit of another embodiment according to the present invention, and this device comprises that the device of Fig. 1 is as pretreatment unit.The parts of the same reference numerals among Fig. 4 represent the parts substantially the same with the parts of Fig. 2 or Fig. 3.
The organic waste-water treating apparatus of Fig. 4 is from the different of the organic waste-water treating apparatus of Fig. 1, and membrane bioreactor (MBR) 50 is connected to the downstream of carrier reactor 20 of the organic waste-water treating apparatus of Fig. 1.That is, in the present embodiment, the organic waste-water treating apparatus of Fig. 1 is similar to Fig. 3 as pretreatment unit.
With reference to Fig. 4, the organic waste-water treating apparatus of another embodiment comprises carrier reactor 20 and MBR 50 according to the present invention.
The carrier reactor 20 of Fig. 4 has structure and the performance identical with the carrier reactor 20 of Fig. 1, therefore, no longer repeats detailed description.
The MBR 50 that the organic waste water of processing in carrier reactor 20 enters wherein utilizes floating microorganism to decompose the organic materials that is retained in the treated organic waste water.Carrier reactor 20 is connected with MBR and is connected via the discharge line 11 ' of treated water, and is discharged from by treated wastewater discharge pipe road 54 from the treated water of MBR 50.Consist of separatory membrane 51 by barrier film, and this separatory membrane separates microorganism forcibly with processed waste water.The treated water that separates with microorganism is discharged by treated wastewater discharge pipe road 54.And, in MBR 50, make the sludge settling in the treated waste water of being processed by carrier reactor 20, and discharge by excess sludge discharge line 53.Scatterer 52 is installed among the MBR 50.Scatterer 52 among the MBR 50 has scatterer 23 essentially identical structure and the performances with carrier reactor 20, therefore will no longer repeat detailed description.
In organic waste-water treating apparatus according to the present invention, mud does not carry out recirculation.And, because the major part in the organic waste water decomposes in carrier reactor 20, so reduced the amount of the organic waste water that must in MBR 50, process.Therefore, can reduce organic waste water by the required time of MBR 50, i.e. HRT can reduce the size of MBR 50 thus.
Although do not illustrate, as required, in having the carrier reactor 20 of above-mentioned structure, activated sludge reactor 30 and MBR 50, may further include pH sensor, dissolved oxygen sensor and/or temperature sensor.
Although illustrate particularly and described the present invention with reference to illustrative embodiments of the present invention, but those skilled in the art will appreciate that, in situation about not deviating from such as the spirit and scope of the invention that is defined by the following claims, can carry out in form and details various variations.
Industrial applicibility
When using according to high concentrated organic wastewater treatment unit of the present invention and processing the method for high concentrated organic wastewater, mud recirculation is unnecessary, and can easily change existing organic waste-water treating apparatus, therefore can reduce constructions cost, this device can move with high organic materials load and high BOD volume load, and can prevent the sludge bulking phenomenon.
Claims (11)
1. organic waste-water treating apparatus that comprises the carrier reactor, described carrier reactor receives pending organic waste water, and utilizes the aerobic microorganism that is attached to carrier to come oxygenolysis to be included in organic materials in the described organic waste water,
Wherein, described carrier is the polyurethane(s) carrier for attached microbial,
Described carrier has 50 to 96% water content, 10 to 40 ° contact angle and 0.015 to 0.045g/cm
3Apparent density,
Described carrier is the foaming hydrophilic polyurethane particle with network structure, it has the aromatic polyisocyanate reaction that the linking agent of 3 to 6 oh groups, the alkanediol chain extension agent with 1 to 6 carbon atom and each molecule have 2 to 3 isocyanate groups by polyvalent alcohol, each molecule of making each molecule have 2 oh groups and to have a number-average molecular weight of 800 to 5000g/mol and obtains, and
Described polyvalent alcohol is to be selected from a kind of in the group that is comprised of PEG, PPG and PTMG,
Wherein, in described organic waste-water treating apparatus, mud does not carry out recirculation.
2. organic waste-water treating apparatus according to claim 1, wherein, described carrier reactor is filled with the described carrier in 5 to 50% scope of described carrier reactor volume.
3. organic waste-water treating apparatus according to claim 1, wherein, described carrier is the fluidized-bed carrier.
4. organic waste-water treating apparatus according to claim 1, wherein, described organic waste water has 5 to 15kgBOD/ (m
3My god) the BOD volume load.
5. organic waste-water treating apparatus according to claim 1, wherein, the carrier sieve on the side of the waste water that the discharging that described carrier reactor further is included in described carrier reactor is treated is flushed away to prevent described carrier.
6. organic waste-water treating apparatus according to claim 5, wherein, described carrier sieve is formed by Porous Stainless Steel.
7. organic waste-water treating apparatus according to claim 1, wherein, described carrier reactor comprises for the scatterer that oxygen is supplied to described carrier reactor.
8. organic waste-water treating apparatus according to claim 7, wherein, described scatterer is the film scatterer that is formed by ethylene-propylene-diene-monomer (EPDM) rubber.
9. organic waste-water treating apparatus according to claim 1, further comprise air lift pump, in order to make the described carrier of the rearward end that moves to described carrier reactor be back to the leading section of described carrier reactor, and the microorganism that is conducive to adhere to separates with described carrier.
10. organic waste-water treating apparatus according to claim 1 further comprises:
Activated sludge reactor, it is received in the described organic waste water of processing in the described carrier reactor, and utilizes floating aerobic microorganism to come oxygenolysis to be retained in organic materials in the described treated waste water; And
The sludge settling device, it is received in the organic waste water of processing in the described activated sludge reactor, precipitates the mud in the described treated organic waste water, the part of precipitated mud is recycled to described activated sludge reactor, and discharges remaining mud.
11. organic waste-water treating apparatus according to claim 1, further comprise membrane bioreactor (MBR), described membrane bioreactor is received in the described organic waste water of processing in the described carrier reactor, utilize active sludge microorganism to come oxygenolysis to be retained in organic materials in the described treated waste water, and described active sludge microorganism is separated with described treated organic waste water.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20060120088A KR100789275B1 (en) | 2006-11-30 | 2006-11-30 | An apparatus for treating highly concentrated organic waste water and a method for treating highly concentrated organic waste water using the same |
| KR10-2006-0120088 | 2006-11-30 | ||
| KR1020060120088 | 2006-11-30 | ||
| PCT/KR2007/004744 WO2008066244A1 (en) | 2006-11-30 | 2007-09-28 | Apparatus for treating high concentration organic waste water and method of treating high concentration organic waste water using the same |
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| CN101553436A CN101553436A (en) | 2009-10-07 |
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| KR (1) | KR100789275B1 (en) |
| CN (1) | CN101553436B (en) |
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| EA018289B1 (en) * | 2007-12-19 | 2013-06-28 | Сауди Арабиан Ойл Компани | Suspended media granular activated carbon membrane biological reactor system |
| TWI568687B (en) | 2009-06-15 | 2017-02-01 | 沙烏地***油品公司 | Suspended media membrane biological reactor system and process including suspension system and multiple biological reactor zones |
| BE1019195A4 (en) * | 2010-02-24 | 2012-04-03 | M H C N V | METHOD OF PURIFYING WASTE WATER. |
| DE102010035751B4 (en) * | 2010-08-28 | 2014-12-18 | Wte Wassertechnik Gmbh | Method of reducing scum in a sewage treatment plant |
| CN102826646A (en) * | 2011-06-17 | 2012-12-19 | 同济大学 | Catalytic iron internal electrolysis biological fluidization filler and preparation method thereof |
| US9212358B2 (en) * | 2012-06-15 | 2015-12-15 | Microvi Biotech, Inc. | Biocatalyst compositions and processes for their use |
| WO2014143741A1 (en) * | 2013-03-15 | 2014-09-18 | Gaia Institute | A method for composting organic waste |
| WO2015136535A1 (en) * | 2014-03-11 | 2015-09-17 | Aqwise - Wise Water Technologies Ltd. | Biomass carrier and a method of manufacturing thereof |
| JP6899104B2 (en) * | 2015-03-31 | 2021-07-07 | 国立大学法人北海道大学 | Wastewater treatment method and wastewater treatment equipment |
| CN105643857A (en) * | 2016-02-03 | 2016-06-08 | 安徽乙地生态科技有限公司 | Lung type aeration sponge for improving aeration efficiency in sewage treatment |
| CN105621598A (en) * | 2016-02-03 | 2016-06-01 | 安徽乙地生态科技有限公司 | Lung-type aeration sponge for increasing aeration efficiency in sewage treatment |
| CN111875423A (en) * | 2020-08-12 | 2020-11-03 | 莆田碧牧源农业开发有限公司 | Sludge aerobic fermentation organic fertilizer and preparation method thereof |
| CN115784425A (en) * | 2022-12-03 | 2023-03-14 | 知和环保科技有限公司 | Multi-face sphere nitrifying filler and application method thereof |
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| CN1109028A (en) * | 1993-05-03 | 1995-09-27 | 罗姆和哈斯公司 | Sequestration of toxic, hydrophobic organic materials in sediment |
| KR100638319B1 (en) * | 2006-04-17 | 2006-10-24 | (주)대성그린테크 | Ds-gr-hcs |
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| KR100227471B1 (en) * | 1997-03-25 | 1999-11-01 | 양인모 | Media for wastewater treatment manufacturing method thereof and wastewater treatment method using the media |
| JP4663064B2 (en) | 2000-06-08 | 2011-03-30 | 株式会社クラレ | Wastewater treatment method |
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| CN1109028A (en) * | 1993-05-03 | 1995-09-27 | 罗姆和哈斯公司 | Sequestration of toxic, hydrophobic organic materials in sediment |
| KR100638319B1 (en) * | 2006-04-17 | 2006-10-24 | (주)대성그린테크 | Ds-gr-hcs |
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| CN101553436A (en) | 2009-10-07 |
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