CN101279809B - Biological filler shimmying-bed - Google Patents
Biological filler shimmying-bed Download PDFInfo
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- CN101279809B CN101279809B CN2008101137631A CN200810113763A CN101279809B CN 101279809 B CN101279809 B CN 101279809B CN 2008101137631 A CN2008101137631 A CN 2008101137631A CN 200810113763 A CN200810113763 A CN 200810113763A CN 101279809 B CN101279809 B CN 101279809B
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- aerobic pond
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Abstract
The invention relates to a waste water purifying equipment. The invention provides a biological stuffing shaking bed in which biological stuffing composed of fibers attached with microorganisms easily are arranged. The shaking bed of the invention overcomes the technique defects of general wastewater treatment devices, and can realize the stable treatment effect and remove the organic matters, nitrogen, phosphorus and chroma in water, and the range of application is wide.
Description
[technical field]
The invention belongs to technical field of waste water processing.More specifically, the present invention relates to a kind of biological filler swimming-bed reactor, and the application in purification of waste water.
[background technology]
In recent years, newly-built sewage work emerges in large numbers like the mushrooms after rain, but there is the general phenomenon that falls behind relatively in the present sewage disposal technology of China, be accompanied by a lot of problems that produce, big as the mud generation, subsequent disposal is difficult, energy consumption is high, treatment effect is unstable, sewage work gives off an unpleasant smell etc.As seen the sewage work that has now built up has many technical problems still unresolved.
Contact oxidation method is a kind of wastewater biochemical facture that has activated sludge process and biomembrance process characteristics concurrently, being of wide application of China, comprises being used to handle various trade effluents, sanitary sewage, hospital wastewater etc.The major equipment of this method is the bio-contact oxidation filter tank.Particularly, in air-locked aeration ground fillers such as coke, gravel, plastic honeycomb are housed, filler is not had by water logging, uses gas blower at filler bottom aeration aerating; Air is carried pending waste water from bottom to up secretly, and freedom partly arrives ground by filler.Behind the air runaway, waste water is then at the bottom of from up to down returning the pond between filler.Active sludge can be attached to filling surface and not flow with water, and this is because microbial film directly is subjected to the strong agitation of upstream, brings in constant renewal in, thereby has improved decontamination effect improving.Biological contact oxidation process have the treatment time short, volume is little, good purification, effluent quality is good and stablize, mud need not reflux advantage such as yet do not expand, power consumption is little.Yet its shortcoming also is significantly, and owing to sluggish flow between biologic packing material, sluicing power is little on the one hand; In addition, the microbial film in the reactor can only come off voluntarily, and excess sludge is difficult for draining, and is trapped in easily to cause water quality deterioration between the filtrate, influences treatment effect; And biologic packing material needs periodic replacement, its structures maintenance difficult.
[summary of the invention]
[problem that invention will solve]
The purpose of this invention is to provide a kind of biological filler swimming-bed reactor, this shakes bed and overcomes many defectives that routine techniques exists, combine the characteristics of fixed bed and fluidized-bed, have stable, load height, resistance to overload shock, surplus sludge volume few, do not need the mud backflow, do not have advantage such as sludge bulking.
[technical scheme]
In order to address the above problem, the invention provides a kind of biological filler swimming-bed reactor, this shakes bed and comprises non-closed shell and the water inlet pipe and the rising pipe that link to each other with this housing, wherein said enclosure interior is separated at least four parts, it is respectively anoxic pond, Aerobic Pond, settling tank and clean water basin, wherein, the other end of described rising pipe extends in the clean water basin, the other end of described water inlet pipe extends in the anoxic pond, be separated out described anoxic pond with at least three baffle plates preface successively respectively in the described clean water basin outside, Aerobic Pond and settling tank, wherein, baffle plate between described anoxic pond and the Aerobic Pond, baffle plate between Aerobic Pond and the settling tank is provided with opening, and the baffle plate between described settling tank and the anoxic pond does not have opening; In described anoxic pond, denitrifying bacterium is arranged, in described Aerobic Pond, biologic packing material is housed, described biologic packing material is the fiber that is easy to attached microbial, sludge reflux pump and sludge return pipe are arranged at the settling tank bottom, sludge return pipe connects settling tank and anoxic pond, be used for the mud pumpback of settling tank in anoxic pond, the lip between settling tank and the clean water basin has overflow port.
In order to avoid phenomenon such as short stream to greatest extent, according to a kind of embodiment of the present invention, Aerobic Pond preferably is divided into two portions with baffle plate, is labeled as one-level Aerobic Pond and secondary Aerobic Pond, promptly is separated into five parts in the housing.In these two Aerobic Ponds described biologic packing material is housed all, described biologic packing material is the fiber that is easy to attached microbial, and, on the baffle plate between these two Aerobic Ponds opening is arranged.
According to the present invention, the quantity of Aerobic Pond also can be more than two, for example by baffle plate Aerobic Pond to be separated into three parts in case of necessity, is labeled as one-level Aerobic Pond, secondary Aerobic Pond and three grades of Aerobic Ponds respectively, and opening is all arranged on the baffle plate between these Aerobic Ponds.
The wastewater treatment process of biological filler swimming-bed reactor of the present invention is such, at first, waste water enters anoxic pond by water inlet pipe, water inlet, carries out aminating reaction in anoxic pond, and by the denitrifying bacterium with denitrification functions the sewage of coming that refluxes from settling tank is carried out denitrogenation processing.The opening overflow of treated waste water by baffle plate top be to the one-level Aerobic Pond, and by removing organism in the sewage attached to the high concentration sludge on the biologic packing material in the pond, the opening by the baffle plate bottom flow to the secondary Aerobic Pond then.Similar with the one-level Aerobic Pond, also be provided with biologic packing material in the secondary Aerobic Pond, can further remove the organism in the sewage, pass through the opening overflow on baffle plate top then to the settling region through the waste water of handling like this.The water that is overflowed by Aerobic Pond contains mud, so the effect of settling tank is to precipitate, separate these mud mixtures.Pool wall top between settling tank and clean water basin is provided with overflow port, is further precipitated in from this overflow to clean water basin through sedimentary water, and the mud of settling tank bottom then can be drawn back to anoxic pond by the sludge reflux pump of being located at bottom this pond.Clear water through secondary sedimentation in clean water basin is exported by rising pipe, water outlet.
A preferred embodiment of the invention, the shape of housing can be columnar, allow to open sealing of user mode lower housing top.Clean water basin are arranged on the independently cylindrical area at housing middle part, open by clean water basin pool wall and other zone isolation.Equably isolate 4 zones in the clean water basin pool wall outside with 4 baffle plates for the situation that is provided with two Aerobic Ponds (being called one-level Aerobic Pond and secondary Aerobic Pond), constitute anoxic pond, one-level Aerobic Pond, secondary Aerobic Pond and settling tank respectively, 4 zone volumes separately can be identical or different.Wherein, be equipped with opening on the baffle plate between baffle plate between baffle plate between anoxic pond and the one-level Aerobic Pond, one-level Aerobic Pond and the secondary Aerobic Pond, secondary Aerobic Pond and the settling tank, for example be provided with opening, or preferably be respectively equipped with opening in the upper and lower of these baffle plates in the bottom of these baffle plates.Therefore in treating processes, water can be by the opening on the baffle plate from anoxic pond to the overflow step by step of Aerobic Pond, settling tank.Also be provided preferably with the heavy water inlet pipe that divides in settling tank, the one end is located at the settling tank middle part, and the other end is located at the bottom of clean water basin, can realize the water that a small amount of mud is contained in the clean water basin bottom is transmitted back in the settling tank by pump control precipitating once more.
A preferred embodiment of the invention, on described housing, also be provided with inlet pipe and air pump, in described Aerobic Pond (comprising one-level Aerobic Pond and secondary Aerobic Pond), be provided with the sudden and violent tracheae of perforation, air pump is connected with the sudden and violent tracheae of perforation by inlet pipe, can be continuously, oxygen cruelly in Aerobic Pond controllably.Like this, by sudden and violent gas oxygenation from the filler bottom, air can be carried pending waste water from bottom to top secretly and circulate, pass biologic packing material and arrive Aerobic Pond top, air is (under user mode, housing is to allow to open wide usually) behind the runaway of unsealed housing top, and waste water is then at the bottom of from up to down returning the pond between biologic packing material, and active sludge, microorganism etc. can be attached to the biologic packing material surface, do not flow with water.
According to above-mentioned biological filler swimming-bed reactor, wherein on water inlet pipe, be provided with intake pump and/or water intaking valve, on rising pipe, be provided with out water pump and/or outlet valve.
A preferred embodiment of the invention, it is wetting ability tacryl or the fine fiber of polypropylene that the wherein said fiber that is easy to attached microbial is selected from, wetting ability tacryl or the fine fiber of polypropylene of for example selecting for use Japanese NET Co., Ltd. to sell, the biologic packing material that is made of this fiber comprises filler support and/or the groups of holders be made up of a plurality of supports and be located at many high strength axial cords on the support (its intensity for example is not less than 200kg/cm
2), in these on the heart rope at a certain distance (for example every 1-3mm) horizontal direction fiber yarn is set, between adjacent two fiber yarns deflection angle is arranged.These fiber yarns can be single fibers, also can be twined by plurality of fibers to constitute, and for example twine by 3 above-mentioned fibers to constitute.Like this, by sudden and violent gas or current, the fiber yarn under the user mode can shake by nature, and the contact frequency of dirt in raising and the water improves adsorptive power.
The present invention also provides the application of above-mentioned biological filler swimming-bed reactor in wastewater treatment, and described waste water comprises sanitary wastewater, trade effluent.
The present invention also provides the application as biologic packing material in sewage treatment equipment of above-mentioned wetting ability tacryl, especially, described biologic packing material comprises filler support and/or the groups of holders of being made up of a plurality of supports, with many axial cords that are located on the support, in these on the heart rope at a certain distance horizontal direction fiber yarn is set, described fiber yarn can be single wetting ability tacryl, also can be twined by many wetting ability tacryls to constitute.
[beneficial effect]
Biological filler swimming-bed reactor of the present invention is except the characteristics that possess conventional biofilm reactor, and its distinct advantages also comprises:
(1) rational in infrastructure, can high loaded process, the processing efficiency height, strong shock resistance: because the biologic packing material structure, its surface irregularity, voidage are big, thereby attached microbial, biofilm speed are fast easily, so system's start-up period is short; And biologic packing material is in the state of shaking in user mode, and biologic packing material contacts the frequency height with sewage, directly makes the processing efficiency height; And owing to shake, can constantly peel off attached to the aged mud on the biologic packing material (the about 3000mg/L of concentration) becomes floatability active sludge (concentration can be higher than 10000mg/L), acting in conjunction by floatability active sludge and immobilized microorganism, equipment can be turned round more than the 10000kg/L at activated sludge concentration (MLSS), high loaded process makes the handling property of equipment improve several times than conventional art, strong shock resistance like this; In addition, the biologic packing material space structure is reasonable, not conglomeration, does not block, does not run off, need not back flushing, and the situation that obturation can occur or come off is not easy to use;
(2) the mud generating capacity is few, settling property good; Because active sludge can stably adhere on biologic packing material, in Aerobic Pond, exist like this from the bacterium to the wheel animalcule, extensive biophase such as poor caterpillar, nematode, formed long food chain, so this equipment can realize the mud autodigestion, reduce the mud generating capacity significantly; Because the settleability in the Aerobic Pond is good, settleability speed is fast, can improve the solid-liquid separation performance of settling tank, and the sludge bulking phenomenon can not take place;
(3) the equipment suitability is good, can handle high SS (suspended substance) composition, oily(waste)water and the difficult organic waste water that decomposes: owing to select for use the fiber that is easy to attached microbial to constitute biologic packing material, its advantages of good adsorption effect, also can pass through the direct disaggregating treatment of this equipment even contain SS composition, oil content in the waste water, and not need to be provided with preceding pre-processing device; Because sludge retention time is long, the decomposer that can not live in mud or give birth to slow-footed nitrifier or difficult decomposed substance also can be lived, and therefore can handle multiple organic waste water.
[description of drawings]
Fig. 1 is a biological filler swimming-bed reactor side-view of the present invention;
Fig. 2 is a biological filler swimming-bed reactor vertical view of the present invention;
Fig. 3 is that the filler of biological filler swimming-bed reactor of the present invention is arranged synoptic diagram;
Fig. 4 is the filler and the support synoptic diagram of biological filler swimming-bed reactor of the present invention;
Fig. 5 is baffle plate 11,12,13 structural representations of biological filler swimming-bed reactor of the present invention;
Fig. 6 is the filler partial enlarged drawing of biological filler swimming-bed reactor of the present invention.
Wherein: 1, housing; 2, anoxic pond; 3, Aerobic Pond; 4, settling tank; 5, clean water basin; The heavy water inlet pipe that divides; 7, the sudden and violent tracheae of boring a hole; 8, water inlet pipe; 9, rising pipe; 10, wet-pit; 11, the baffle plate between anoxic pond and the one-level Aerobic Pond; 12, the baffle plate between one-level Aerobic Pond and the secondary Aerobic Pond; 13, the baffle plate between secondary Aerobic Pond and the settling tank; 14, the baffle plate between settling tank and the anoxic pond; 15, biologic packing material; 16, sludge reflux pump; 17, sludge return pipe; 18, air pump; 19, inlet pipe; 21, support; 22, axial cord; 23, fiber yarn; 24, opening; 31, one-level Aerobic Pond; 32, secondary Aerobic Pond.
[embodiment]
Following embodiment is described with reference to the accompanying drawings the present invention.
Embodiment 1
The plan wastewater flow rate of present embodiment, flow velocity see Table 1.
Table 1
| Project | m 3/d | m 3/h | m 3/min |
| Per day sewage quantity | 5.0 | 0.21 | 0.004 |
| Maximum sewage quantity of time | - | 0.63 | 0.011 |
The plan water quality of present embodiment sees Table 2.
Table 2
| Project | Flow into water quality | Target water quality | Remove rate (%) |
| BOD(mg/L) | 200 | 10 | 95.0％ |
| CODcr(mg/L) | 400 | 50 | 87.5％ |
| SS(mg/L) | 100 | 10 | 90.0％ |
| NH3-N(mg/L) | 40 | 5 | 87.5％ |
As shown in Figure 1, 2, the biological filler swimming-bed reactor of present embodiment is a carbon steel structure, housing 1 external diameter 1800mm, significant depth 2200mm, the clean water basin 5 radius 350mm of housing 1 inside.Clean water basin 5 outsides evenly are separated into anoxic pond 2, one-level Aerobic Pond 31, secondary Aerobic Pond 32 and settling tank 4 with baffle plate, and each pond respectively accounts for quarter turn.Total air output at the sudden and violent tracheae 7 of perforation of one-level Aerobic Pond 31, secondary Aerobic Pond 32 bottoms is 0.08m
3/ min, mud generating capacity 1.0kg/d.
Be provided with the water inlet pipe of controlling by pump 8 at anoxic pond 2 middle parts, can import pending waste water with nominal flow rate.In anoxic pond 2, denitrifying bacterium is arranged, can carry out denitrogenation processing waste water.Be provided with the rising pipe of controlling by wet-pit 10 9 at the clean water basin middle part.
Shown in Fig. 2,3, be provided with two sudden and violent tracheaes 7 of perforation around housing 1 axle center in one-level Aerobic Pond 31, secondary Aerobic Pond 32 bottoms, they are connected with air pump 18 by inlet pipe 19.Be equipped with biologic packing material 15 in one-level Aerobic Pond 31, the secondary Aerobic Pond 32.As shown in Figure 4, this biologic packing material 15 is to constitute like this: the two ends up and down at the stainless steel stent 21 of high 945mm, wide 440mm are provided with 4 fine axial cords 22 of high-strength polypropylene uniformly, on axial cord 22, a fiber yarn 23 is set every 3mm, this fiber yarn diameter 3mm, every is entwined by 3 wetting ability tacryls (being sold by Japanese NET Co., Ltd.).Between adjacent 2 fiber yarns 23 certain deflection angle is arranged, the biologic packing material 15 of Gou Chenging can be three-dimensional distribution in the space like this, and surface irregularity, has higher voidage, therefore help microorganism, active sludge adheres to and grow, shorten biologic packing material biofilm and system start time with this, as shown in Figure 6.A plurality of above-mentioned stainless steel stents 21 are set in Aerobic Pond, constitute 21 groups on support.
Like this, cooperate sudden and violent device of air, waste water flows in Aerobic Pond 3 from bottom to top, and with the continuous contact-impact of the fiber on the biologic packing material, organic sludge and microorganism can be attached on the biologic packing materials 15.
As shown in Figure 5, the baffle plate 13 between the baffle plate 12 between the baffle plate 11 between anoxic pond and the one-level Aerobic Pond, one-level Aerobic Pond and the secondary Aerobic Pond, secondary Aerobic Pond and the settling tank all has opening 24 so that circulation in a upper and lower.Waste water is through behind the Aerobic Pond 3, by baffle plate 13 overflows to settling tank 4.Be provided with sludge reflux pump 16 in settling tank 4 bottoms, can be transported to anoxic pond 2 to the mud of settling tank 4 bottoms by sludge return pipe 17.Also be provided with the heavy water inlet pipe 6 that divides in settling tank 4, the one end is located at settling tank 4 middle parts, and the other end is located at the bottom of clean water basin 5, and it is controlled by pump, can be transmitted back to the water that a small amount of mud is contained in clean water basin 5 bottoms in the settling tank 4 precipitation once more.
Through the waste water that the present embodiment biological filler swimming-bed reactor is handled, actual processing effect sees Table 3.
Table 3
| Project | Actual flow is gone into water quality | Actual flow goes out water quality | Remove rate (%) |
| BOD(mg/L) | 190 | 8.5 | 95.5 |
| CODcr(mg/L) | 300 | 52 | 82.7 |
| SS(mg/L) | 130 | 17 | 86.9 |
| NH3-N(mg/L) | 30 | 4.7 | 84.3 |
Claims (8)
1. biological filler swimming-bed reactor, comprise housing (1) and water inlet pipe (8) that links to each other with described housing (1) and rising pipe (9), it is characterized in that described housing (1) inside is separated at least four parts, be respectively anoxic pond (2), Aerobic Pond, settling tank (4) and clean water basin (5), wherein, one end of described rising pipe (9) extends in the clean water basin (5), one end of described water inlet pipe (8) extends in the anoxic pond (2), described clean water basin (5) are positioned at housing (1) central interior, be separated out described anoxic pond (2) with three baffle plates preface successively respectively in described clean water basin (5) outside, Aerobic Pond (3) and settling tank (4), wherein, baffle plate (11) between described anoxic pond (2) and the Aerobic Pond (3), baffle plate (13) between Aerobic Pond (3) and the settling tank (4) is provided with opening (24), and the baffle plate (14) between described settling tank (4) and the anoxic pond (2) does not have opening (24); In described anoxic pond (2), denitrifying bacterium is arranged, biologic packing material (15) is housed in described Aerobic Pond (3), described biologic packing material (15) is the fiber that is easy to attached microbial, the described fiber that is easy to attached microbial is wetting ability tacryl or polyacrylonitrile fibre, in described settling tank (4) bottom sludge reflux pump (16) and sludge return pipe (17) are arranged, sludge return pipe (17) connects settling tank (4) and anoxic pond (2), be used for the mud pumpback of settling tank (4) in anoxic pond (2), overflow port is arranged at the baffle plate top between described settling tank (4) and the clean water basin (5).
2. biological filler swimming-bed reactor according to claim 1, it is characterized in that described Aerobic Pond is become two by barrier partitions, be one-level Aerobic Pond (31) and secondary Aerobic Pond (32), in these two Aerobic Ponds described biologic packing material is housed all, the baffle plate (14) between described one-level Aerobic Pond (31) and the secondary Aerobic Pond (32) is provided with opening (24).
3. biological filler swimming-bed reactor according to claim 1 is characterized in that also being provided with inlet pipe (19) and air pump (18) on described housing (1), is provided with the boring aeration pipe (7) that links to each other with inlet pipe (19) in described Aerobic Pond (3).
4. according to claim 1 or 3 described biological filler swimming-bed reactors, it is characterized in that on described water inlet pipe (8), being provided with intake pump and/or water intaking valve, on described rising pipe (9), be provided with out water pump and/or outlet valve.
5. biological filler swimming-bed reactor according to claim 1 is characterized in that being provided with the heavy water inlet pipe (6) that divides in described settling tank (4), water inlet pipe (6) one ends were located at settling tank (4) middle part in described heavy minute, and the other end is located at the bottom of described clean water basin (5).
6. biological filler swimming-bed reactor according to claim 5, it is characterized in that described biologic packing material (15) comprises support (21) and/or groups of holders and the many axial cords (22) that are located on the support, go up horizontal direction at axial cord (22) fiber yarn (23) is set, between adjacent two fiber yarns (23) deflection angle is arranged.
7. biological filler swimming-bed reactor according to claim 6 is characterized in that described every fiber yarn (23) is a single fiber, or constitute by the plurality of fibers winding.
8. biological filler swimming-bed reactor according to claim 2 is characterized in that the baffle plate (13) between baffle plate (12), described secondary Aerobic Pond (32) and the settling tank (4) between baffle plate (11), described one-level Aerobic Pond (31) and the secondary Aerobic Pond (32) between described anoxic pond (2) and the one-level Aerobic Pond (31) all is provided with opening (24) at an upper portion thereof and at a lower portion thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101137631A CN101279809B (en) | 2008-05-30 | 2008-05-30 | Biological filler shimmying-bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101137631A CN101279809B (en) | 2008-05-30 | 2008-05-30 | Biological filler shimmying-bed |
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| CN101279809A CN101279809A (en) | 2008-10-08 |
| CN101279809B true CN101279809B (en) | 2011-01-19 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5874741B2 (en) * | 2012-01-06 | 2016-03-02 | 栗田工業株式会社 | Biological treatment method and apparatus for organic wastewater |
| CN114249488A (en) * | 2021-12-07 | 2022-03-29 | 泸州老窖股份有限公司 | Biological aerated filter for treating brewing wastewater and treatment system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200949077Y (en) * | 2006-07-28 | 2007-09-19 | 重庆大学 | Active sludge-biological film combined type integral sewage treatment equipment |
| CN101186388A (en) * | 2003-08-22 | 2008-05-28 | Net有限公司 | Sewage treatment apparatus |
-
2008
- 2008-05-30 CN CN2008101137631A patent/CN101279809B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186388A (en) * | 2003-08-22 | 2008-05-28 | Net有限公司 | Sewage treatment apparatus |
| CN200949077Y (en) * | 2006-07-28 | 2007-09-19 | 重庆大学 | Active sludge-biological film combined type integral sewage treatment equipment |
Non-Patent Citations (2)
| Title |
|---|
| 毛凡等.新型挂膜纤维材料的研究.合成纤维.2007,(2),33-36. * |
| 石利军等.缺氧好氧摇动床石化废水生物脱氮实验研究.沈阳建筑大学学报(自然科学版).2005,21(3),556-559. * |
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