CN204058055U - Moving-bed biofilm reaction unit - Google Patents
Moving-bed biofilm reaction unit Download PDFInfo
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- CN204058055U CN204058055U CN201420436504.3U CN201420436504U CN204058055U CN 204058055 U CN204058055 U CN 204058055U CN 201420436504 U CN201420436504 U CN 201420436504U CN 204058055 U CN204058055 U CN 204058055U
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- bed biofilm
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- 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
Abstract
The utility model discloses a kind of moving-bed biofilm reaction unit, it comprises: reactor, it has container cavity, the sidewall of described reactor is connected to water inlet pipe and rising pipe, described water inlet pipe is connected with described container cavity respectively with described rising pipe, described water inlet pipe is relative with described rising pipe level, is filled with filler in described container cavity; Aeration tube, it offers multiple perforation, and described aeration tube is arranged on the bottom of described container cavity.Moving-bed biofilm reaction unit of the present utility model, can realize the purifying treatment to low-concentration organic in strong brine and ammonia nitrogen, and its structure is simple efficient, energy consumption needed for convenient operation, vehicle fluidizes is little, and can not block, head loss is little.
Description
Technical field
The utility model has about a kind of reaction unit, especially has the moving-bed biofilm reaction unit about processing reverse osmosis concentrated salt solution in a kind of industrial waste water purifying field.
Background technology
Along with the shortage of water resources, embrane method has become the main processing units of iron and steel enterprise's reused water processing technique, and also can produce a large amount of strong brines in the production process of reuse water.If these strong brines, without dealing carefully with direct discharge, both can cause the serious waste of water resources, also serious environmental pollution can be brought.Especially the ammonia nitrogen in strong brine and organic pollutant, can bring very large environmental protection pressure to iron and steel enterprise.If strong brine is directly carried out minimizing as the source water of advanced treatment, wherein organic content is too high, can be comparatively serious to the pollution of film, and equipment can not be run by normal table.Therefore before strong brine is discharged into natural water and recovery, tackle ammonia nitrogen in reverse osmosis concentrated salt solution and organism carries out suitable process, but because of features such as the supersalinity of strong brine, low chemical oxygen demand (COD) (COD) and biodegradability differences, be a great problem of water technology now.
Active sludge processing system, when biochemical oxygen demand (BOD) (BOD5) value of raw waste water is for a long time lower than 50-60mg/L, will affect formation and the growth of the flocs unit of active sludge, and its purification function reduces, and water quality treatment declines; Aerobic biofilter can not make full use of pond to be held, and easily hardens due to the higher filtrate of strong brine hardness; Often there is mechanical means problem in blodisc; Submerged bacteria filter is difficult to make load be evenly distributed on the surface of carrier, and due to needs backwash, granule medium biological filter can not non-stop run, and fluidized bed processing effect is unstable.Above-mentioned effluent treatment plant is not all suitable for the purifying treatment of strong brine.
Therefore, be necessary the device that a kind of novel processed strong brine is provided, overcome above-mentioned defect.
Utility model content
The purpose of this utility model is to provide a kind of moving-bed biofilm reaction unit, it can realize the purifying treatment to low-concentration organic in strong brine and ammonia nitrogen, its structure is simple efficient, energy consumption needed for convenient operation, vehicle fluidizes is little, and can not block, head loss is little.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
The utility model provides a kind of moving-bed biofilm reaction unit, and described moving-bed biofilm reaction unit comprises:
Reactor, it has container cavity, the sidewall of described reactor is connected to water inlet pipe and rising pipe, and described water inlet pipe is connected with described container cavity respectively with described rising pipe, described water inlet pipe is relative with described rising pipe level, is filled with filler in described container cavity;
Aeration tube, it offers multiple perforation, and described aeration tube is arranged on the bottom of described container cavity.
In a preferred embodiment, the inner side-wall of described container cavity is provided with water outlet grid, and described water outlet grid is relative with described rising pipe.
In a preferred embodiment, described filler is high density polyethylene(HDPE).
In a preferred embodiment, the density of described filler is 0.96g/cm
3.
In a preferred embodiment, the outside of described reactor is provided with blast main and aerator, and one end of described blast main is connected with described aeration tube, and its other end is connected with described aerator.
In a preferred embodiment, the upper end of described reactor is provided with overflow port.
In a preferred embodiment, the lower end of described reactor is provided with drain.
Feature and the advantage of moving-bed biofilm reaction unit of the present utility model are: the purification that this moving-bed biofilm reaction unit is particularly suitable for the reverse osmosis concentrated salt Organic substance in water of smelter and ammonia nitrogen is removed, and it has the following advantages:
1, shared space is little, can select different pond types according to the situation in place, and reactor can process the load identical with common oxidation pond but only need to take the space of 20%;
2, energy dilatation, due to the handiness of design, by adjusting filling ratio and the aeration rate of filler, after the reactor provided, dilatation is convenient;
3, operational administrative is simple, and the biomembranous filler of apposition growth flows in reactor, can not need activity sludge reflux or circulation back flushing;
4, can not block, filler is in fluidized state in the reactor, and carrier organism constantly comes off in turbulent flow, avoids blocking;
5, biology easily rejuvenates, and filler suspends flowing in the reactor, biological in change temperature and pH value, excess load or also can rejuvenate very soon under being poisoned effect, and treatment effect is stablized.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of moving-bed biofilm reaction unit of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model provides a kind of moving-bed biofilm reaction unit, it comprises reactor 1 and aeration tube 2, wherein: reactor 1 has container cavity 11, the sidewall of described reactor 1 is connected to water inlet pipe 12 and rising pipe 13, described water inlet pipe 12 is connected with described container cavity 11 respectively with described rising pipe 13, and described water inlet pipe 12 is relative with described rising pipe 13 level, is filled with filler 14 in described container cavity 11; Aeration tube 2 offers multiple perforation 21, described aeration tube 2 is arranged on the bottom of described container cavity 11.
Specifically, reactor 1 is the reaction tank of upper end open, for the strong brine needed for splendid attire reaction and filler 14 in its container cavity 11.In the utility model, this filler 14 is high density polyethylene(HDPE), and its density is 0.96g/cm
3.Reactor 1 is connected with water inlet pipe 12 and rising pipe 13, this water inlet pipe 12 is connected with container cavity 11 respectively with rising pipe 13, and water inlet pipe 12 and rising pipe 13 are oppositely arranged on the sidewall of reactor 1 in the horizontal direction.In the utility model, the inner side-wall of container cavity 11 is provided with water outlet grid 111, and this water outlet grid 111 is relative with rising pipe 13.
Further, the upper end of reactor 1 is provided with overflow port 15, and its lower end is provided with drain 16, and this overflow port 15 can prevent the solution in reactor 1 from too much overflowing outside reactor 1, and this drain 16 can be outside to reactor 1 by the solution discharge in reactor 1.
Aeration tube 2 is substantially cylindrical, and it offers multiple perforation 21, aeration tube 2 is positioned at bottom the container cavity 11 of reactor 1, and in the utility model, aeration tube 2 is connected with the blast main 3 being arranged on reactor 1 outside, and this blast main 3 is connected with an aerator 4.
The process processed strong brine by this moving-bed biofilm reaction unit is as follows: first, strong brine is poured in the container cavity 11 of reactor 1 from water inlet pipe 12, filler 14 is put in container cavity 11, start the aerator 4 of reactor 1 outside, air now in blast main 3 is by the aeration tube 2 bottom inflow reactor 1, and air multiple perforation 21 on aeration tube 2 sprays.Aeration tube 2 is in the process of aeration, filler 14 can under the effect of air-flow, current, suspend flowing in the strong brine of container cavity 11, filler 14 is in free fluidized state, can promote filler 14 and the pending material in strong brine like this, the organism also namely in strong brine and ammonia nitrogen substances contact, its Surface Creation one biological membranous layer after filler 14 and strong brine reacts, by the microbial process on this biological membranous layer, the organism in strong brine and ammonia nitrogen can be made to be removed.
This moving-bed biofilm reaction unit, the specific surface area of its filler 14 is larger, be attached to filler 14 surface and the microbe population of growth inside is large, kind is many, therefore sludge concentration can reach the 5-10 of the sludge concentration of conventional activated sludge process doubly, mud total mass concentration reaches as high as 30-40g/L, therefore remove the effective of low-concentration organic, and can be formed in filler 14 from bacterium-protozoon-metazoal food chain.Exactly because the food chain formed on microbial film is longer than the food chain on active sludge, in biofilm treatment system, sludge output is also less than active sludge processing system.Therefore, do not need in the moving-bed biofilm reaction unit that the utility model provides to add the device that sludge pipe etc. is specifically designed to cleaning mud.By the biological sludge that microbial film splits away off, contained animal composition is a lot, and proportion is comparatively large, and mud granule individuality is comparatively large, and the settleability of mud is good, is easy to solid-liquid separation.
The filler 14 that the utility model adopts is preferably proportion and the close filler of water, only needs little tolerance can make its even suspension in water.In working order, without the need to filler support, only water outlet grid 111 need be set at rising pipe 13 place of reactor 1 and tackle, make filler 14 be back to body front end, pond by aeration current, reduce investment outlay, and dosing is convenient.In addition, operator worries return sludge ratio like that without image tube reason activated sludge system, gets rid of the problem such as surplus sludge volume and sludge bulking, and simple to operate, workload is few.
The purification that the moving-bed biofilm reaction unit that the utility model provides is particularly suitable for the reverse osmosis concentrated salt Organic substance in water of smelter and ammonia nitrogen is removed, and it has the following advantages:
1, shared space is little, can select different pond types according to the situation in place, and reactor 1 can process the load identical with common oxidation pond but only need to take the space of 20%;
2, energy dilatation, due to the handiness of design, by adjusting filling ratio and the aeration rate of filler 14, after the reactor 1 provided, dilatation is convenient;
3, operational administrative is simple, and the biomembranous filler of apposition growth flows in reactor 1, can not need activity sludge reflux or circulation back flushing;
4, can not block, filler 14 is in fluidized state in reactor 1, and carrier organism constantly comes off in turbulent flow, avoids blocking;
5, biology easily rejuvenates, and filler 14 suspends flowing in reactor 1, biological in change temperature and pH value, excess load or also can rejuvenate very soon under being poisoned effect, and treatment effect is stablized.
Adopt moving-bed biofilm reaction unit process reverse osmosis system strong brine of the present utility model to reach extraordinary effect, to the clearance of ammonia nitrogen more than 90%, even water outlet ammonia nitrogen value is often close to 0; All can more than 70% in the most of the time to the clearance of chemical oxygen demand (COD) (COD), water outlet chemical oxygen demand (COD) (COD) is less than 20mg/L, meets the water quality requirement of qualified discharge and reuse completely.
The foregoing is only several embodiment of the present utility model, those skilled in the art can carry out various change or modification to the utility model embodiment according to content disclosed in application documents and not depart from spirit and scope of the present utility model.
Claims (7)
1. a moving-bed biofilm reaction unit, is characterized in that, described moving-bed biofilm reaction unit comprises:
Reactor, it has container cavity, the sidewall of described reactor is connected to water inlet pipe and rising pipe, and described water inlet pipe is connected with described container cavity respectively with described rising pipe, described water inlet pipe is relative with described rising pipe level, is filled with filler in described container cavity;
Aeration tube, it offers multiple perforation, and described aeration tube is arranged on the bottom of described container cavity.
2. moving-bed biofilm reaction unit as claimed in claim 1, it is characterized in that, the inner side-wall of described container cavity is provided with water outlet grid, and described water outlet grid is relative with described rising pipe.
3. moving-bed biofilm reaction unit as claimed in claim 1, it is characterized in that, described filler is high density polyethylene(HDPE).
4. moving-bed biofilm reaction unit as claimed in claim 1, it is characterized in that, the density of described filler is 0.96g/cm
3.
5. moving-bed biofilm reaction unit as claimed in claim 1, it is characterized in that, the outside of described reactor is provided with blast main and aerator, and one end of described blast main is connected with described aeration tube, and its other end is connected with described aerator.
6. moving-bed biofilm reaction unit as claimed in claim 1, it is characterized in that, the upper end of described reactor is provided with overflow port.
7. moving-bed biofilm reaction unit as claimed in claim 1, it is characterized in that, the lower end of described reactor is provided with drain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436504.3U CN204058055U (en) | 2014-08-04 | 2014-08-04 | Moving-bed biofilm reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436504.3U CN204058055U (en) | 2014-08-04 | 2014-08-04 | Moving-bed biofilm reaction unit |
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| Publication Number | Publication Date |
|---|---|
| CN204058055U true CN204058055U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420436504.3U Active CN204058055U (en) | 2014-08-04 | 2014-08-04 | Moving-bed biofilm reaction unit |
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|---|---|
| CN (1) | CN204058055U (en) |
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2014
- 2014-08-04 CN CN201420436504.3U patent/CN204058055U/en active Active
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