CN204079731U - Creeping bed - Google Patents
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- CN204079731U CN204079731U CN201420647475.5U CN201420647475U CN204079731U CN 204079731 U CN204079731 U CN 204079731U CN 201420647475 U CN201420647475 U CN 201420647475U CN 204079731 U CN204079731 U CN 204079731U
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Abstract
The utility model relates to a kind of creeping bed, this creeping bed is plural serial stage structure, and comprise one-level pretreatment unit, two stage biological processing unit and three grades of advanced treatment units, the first sludge settling district, water inlet pipe and the first shore pipe is provided with in one-level pretreatment unit, be provided with bio-carrier, aerating system, the second sludge settling district and the second shore pipe in two stage biological processing unit, three grades of advanced treatment units are provided with the 3rd sludge settling district, medicine system, water shoot and the 3rd shore pipe.The utility model is that to adopt different efficient microbial strains to carry out according to the kind of dirty water pollutant composite, and the biology of difference in functionality is fixed in high-molecular porous resilient support step by step, achieve biological sewage treatment from disorder to order, from mixed bacterial to the transformation of specialized flora treating processes.
Description
Technical field
The utility model relates to chemical technology field, particularly relates to a kind of creeping bed.
Background technology
The traditional activated sludge process of current process trade effluent mainly contains oxidation ditch process, A2/O technique, SBR technique, cyclic activated sludge system and contact oxidation technology etc.The subject matter that this kind for the treatment of process exists is that the water quality after process can not stablize the primary standard reaching " integrated wastewater discharge standard " GB8978-1996.Major cause is that activated sludge method processing technique easily impacts by water quality and quantity change, once system is destroyed, recovers to get up to need very long process.And the sewage source of sewage work is continuous print, condition is not had to stop transport for a long time health.Therefore, trade effluent that water quality and quantity changes greatly can not stably reaching standard to utilize traditional activated sludge process to carry out.MBR membrane bioreactor is the sewage treatment technique grown up in recent years, is applicable to town domestic sewage process and the lower and Industrial Wastewater Treatment that biochemical is good of ammonia nitrogen.But its running cost is high, and denitrification ability is poor, receives limit value in applying.
Creeping bed is the highly efficiency compositional microorganism selecting difference in functionality for different sewage, applying immobilized microbial technique, biology is separately fixed in the creeping bed poroelasticity carrier of plural serial stage, carrier provides one to biology and works contentedly, the place of procreation from generation to generation, ensure that the purity of different operation dominant bacteria and biological concentration, through the process of plural serial stage operation, reach the condition that can adapt to water quality and quantity change, the object that long period stably reaching standard runs can be realized again.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of creeping bed.
For achieving the above object, the utility model provides a kind of creeping bed, this creeping bed is plural serial stage structure, and this creeping bed comprises one-level pretreatment unit, two stage biological processing unit and three grades of advanced treatment units, the first sludge settling district is provided with in this one-level pretreatment unit, it is provided with water inlet pipe and the first shore pipe, the bio-carrier of plural serial stage is provided with in this two stage biological processing unit, aerating system is provided with below this bio-carrier, the second sludge settling district and the second shore pipe is provided with below this aerating system, these three grades of advanced treatment units are provided with medicine system, water shoot, 3rd sludge settling district and the 3rd shore pipe.
Further, wherein this cascaded structure is annular or rectangle cascaded structure.
Further, wherein the progression of this cascaded structure is ten grades, Qi Zhongyi, three, five, seven, nine grades be flow lifting type, two, four, six, eight, ten grades for falling streaming.
Further, be wherein fixed with two-layer punched-plate respectively in this two stage biological processing unit, and be filled with bio-carrier between upper and lower layer punched-plate, above lower floor's punched-plate, be equipped with aerating system.
Further, wherein this aerating system is the aeration tube with perforation, and it is in the bottom of carrier, the middle part of pond body, reaches both to carrier air-blowing oxygenation, does not stir again the object of lower floor's mud.
Further, wherein this bio-carrier is high-molecular porous Elastic Block, and its density is 25kg/m
3.Empty vectors (carrier of non-fixation of microbe bacterium) is slightly lighter than water, bubbles through the water column, after fixing microbial bacteria, carrier is slightly heavier than water, is sunken to the bottom, when aeration, in wriggling state under air water effect, therefore, when not having back-purge system, creeping bed can not block.
Further, the sewage quality that wherein this bio-carrier processes as required is fixed with the microbial bacteria of difference in functionality step by step.
Further, wherein this microbial bacteria is ZHB11, ZHB22, ZHB35 or ZHB35M, and its dosage is 0.5-1kg/m
3bio-carrier.For the different water quality treatment of creeping bed process, the style differences of microorganism is very large.When influent quality environment changes, the condition such as nutritional condition, temperature, pH of microorganism changes, bacterial flora can be caused to form change, the function mushroom fast enriching that can adapt to water inlet environment plays Main Function, thus the shock resistance of bio-reaction zone can be improved, thus promote that the degraded of creeping bed internal contamination thing is removed.
Further, the waste water quality wherein processed as required in this bio-carrier is fixed with the microbial bacteria of difference in functionality step by step.
Further, wherein the dosage of this microbial bacteria is 0.5-1kg/m
3bio-carrier (once add, after normal operation, do not need to add).
The beneficial effect that the utility model has relative to prior art is:
1, provided by the utility modelly creeping bed is utilized, it adopts different high-performance bio bacterial classifications to carry out composite according to the kind of dirty water pollutant, and the biology of difference in functionality is fixed in high-molecular porous resilient support step by step, achieve biological sewage treatment from disorder to order, from guerrilla warfare to the transformation of specialized flora treating processes;
2, provided by the utility modelly utilize creeping bed, in its biological treatment, there is no sludge recirculation system, avoid sludge bulking and stink produces;
3, creeping bed provided by the utility model, it does not have back-purge system.Because be provided with aerating system below bio-carrier, carrier mean density after immobilized microorganism bacterium is 1.00 very close with the density of water, bio-carrier is suspension wriggling state in pond, sewage is in operational process, carry out air-water backwashing simultaneously, so there is no the back-purge system fixed and can not block;
4, creeping bed provided by the utility model, it, due to special structure and aeration form, makes muddy water be separated in creeping bed, does not need separately to build second pond.
Accompanying drawing explanation
Fig. 1 is the schematic front view of creeping bed;
Fig. 2 is the schematic top plan view of creeping bed;
Fig. 3 is the expansion schematic diagram of creeping bed;
Wherein, the first shore pipe-1 '; Second shore pipe-1 ' '; 3rd shore pipe-1 ' ' '; Water inlet pipe-2; One-level pretreatment unit-3; Three grades of advanced treatment units-4; Bio-carrier-5; Aeration tube-6; Punched-plate-7; Water shoot-8; First sludge settling district-9 '; Second sludge settling district-9 ' '; 3rd sludge settling district-9 ' ' '; Two stage biological processing unit-10; Medicine system-11.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and beneficial effect, existing following detailed description is carried out to the technical solution of the utility model, but can not be interpreted as to of the present utility model can the restriction of practical range.
Below in conjunction with embodiment, the utility model is described in further detail.
Embodiment 1
As Figure 1-3, the utility model provides a kind of creeping bed, this creeping bed be annular plural serial stage structure, wherein the progression of this cascaded structure is seven grades, Qi Zhongyi, three, five, seven grades be flow lifting type, two, four, six grades for falling streaming.And this creeping bed comprises one-level pretreatment unit 3, two stage biological processing unit 10 and three grades of advanced treatment units (coagulating sedimentation system) 4, the first sludge settling district 9 ' is provided with in this one-level pretreatment unit 3, and be provided with water inlet pipe 2 and the first shore pipe 1 ', two-layer punched-plate 7 is fixed with respectively in this two stage biological processing unit 10, and on, bio-carrier 5 is filled with between lower floor's punched-plate 7, below this bio-carrier 5, (above lower floor's punched-plate 7) is equipped with the aeration tube 6 with perforation, the second sludge settling district 9 ' is provided with below this aeration tube 6 ' and the second shore pipe 1 ' ', the 3rd sludge settling district 9 ' is provided with in these three grades of advanced treatment units 4 ' ', and be provided with medicine system 11, and water shoot 8 and the 3rd shore pipe 1 ' ' '.Wherein this bio-carrier 5 (can be ZHZ-5 for high-molecular porous Elastic Block, purchased from Correspondent environmental science and technology company limited permanent in Beijing), the microbial bacteria that the waste water quality that this bio-carrier 5 processes as required is fixed with difference in functionality step by step (can be ZHB11, ZHB22, ZHB35 or ZHB35M, purchased from Correspondent environmental science and technology company limited permanent in Beijing), the dosage of this microbial bacteria is 0.5-1kg/m
3bio-carrier.In addition, this plural serial stage structure also can be rectangle (not shown).
Embodiment 2
As Figure 1-3, the utility model provides a kind of method utilizing described creeping bed process leather waste water, comprises the following steps:
Leather waste water for process is entered by the water inlet pipe 2 of one-level pretreatment unit 3, through the precipitation in the first sludge settling district 9 ' and the spoil disposal of the first shore pipe 1 ';
1) in the leather waste water processed as required, corresponding microbial bacteria (be can be ZHB35 by the kind of pollutent according to a certain order, ZHB35M, purchased from Correspondent environmental science and technology company limited permanent in Beijing) to be fixed on bio-carrier not at the same level and to carry out cultivation 10-30 days at 10 DEG C-50 DEG C, wherein the dosage of microbial bacteria is 0.5-1kg/m
3bio-carrier;
2) need leather waste water to be processed to be entered by the water inlet pipe 2 of one-level pretreatment unit 3, through the precipitation in the first sludge settling district 9 ', water outlet is risen and is flowed automatically to two stage biological processing unit 10, and mud is discharged by the first shore pipe 1 ';
3) water outlet of one-level enters ten grades of two stage biological processing unit 10 successively and carries out a biological disposal upon, through the second sludge settling district 9 ' ' precipitation, water outlet is risen and flowed automatically to three grades of advanced treatment units 4, and mud is by the second shore pipe 1 ' ' discharges;
4) water outlet of secondary enters three grades of advanced treatment units 4 and adds chemical agent (can be PAC(polymerize aluminum chloride) by medicine system, commercially available) carry out advanced treatment, through the 3rd sludge settling district 9 ' ' ' precipitation, water outlet is discharged by water shoot 8 and is reached one-level A standard after testing, and mud is by the 3rd shore pipe 1 ' ' ' discharge.
Embodiment 3
In order to verify the effect of above-described embodiment 2 creeping bed process leather waste water, we have carried out simultaneous test in Xinji sewage work of Hebei province in November, 2013-2014 year February.Handling object is leather waste water.Process for leather waste water is tested, and creeping bed is as shown in table 1 below with the comparative result after acidication-oxidation ditch-second pond-coagulating sedimentation-V-type filter tank processes.
The technological condition wherein contrasting technique (acidication-oxidation ditch-second pond-coagulating sedimentation-V-type filter tank treatment process) is set as: hydrolysis acidification pool hydraulic detention time 6 h, upflow velocity 1m/h; Oxidation ditch activated sludge load 0.13 kg-BOD
5/ kg-mlssd, sludge age 25 d, the residence time 18 h; Second pond hydraulic surface loading 0.88 m
3/ m
2h, sewage sludge solid load 112 m
3/ m
2d; Coagulative precipitation tank coagulation district's residence time 900 s, sedimentation time 1.5 h, run by gravity spoil disposal; V-type filter is quartz sand, filtering velocity 9 m/h, adopts air-water backwashing; Wherein the processing condition setting of 2014.1.3 to 2014.1.15 is constant.
Table 1
Remarks: testing apparatus scale is day process leather waste water 5 tons.On November 20th, 2013 starts fixing culturing micro-organisms bacterium, and commencement of commercial operation on January 3 in 2014, leather waste water belongs to high dense water, high saliferous, organic wastewater with difficult degradation thereby.Duration of test, compares with the existing treatment process of sewage work and acidication-oxidation ditch-second pond-coagulating sedimentation-V-type filter tank.
From 2 days January in 2014, tannery's sheepskin and ox-hide composite wastewater are tested.Table 1 result shows, in saltiness close to 6000mg/L, under the condition of the high salt height organic contamination of the average 4796mg/L of COD, the result of creeping bed process leather waste water is better than the result contrasting technique, and has reached " process hides and fur manufacturing industrial water pollution thing emission standard " the GB30486-2013 emission standard implemented July 1.
Creeping bed provided by the utility model is applying immobilized microbial technique, has concentrated the sewage treatment technique that the basis of the technological merits such as UASB, BAF, biological fluidized bed and contact-oxidation pool is developed.The feature of creeping bed mainly contains the following aspects:
(1) creeping bed provided by the utility model, it has concentrated pre-treatment, secondary biochemical treatment and three grades of advanced treatment in one, and water outlet can directly reach one-level A standard.
(2) creeping bed provided by the utility model, does not have fixing back-purge system in it.Because be provided with aerating system below carrier, carrier mean density after immobilized microorganism is 1.00 very close with the density of water, and carrier is in suspension wriggling state in pond, and sewage is in operational process, carry out carbonated drink back flushing simultaneously, so there is no the back-purge system fixed and can not block.
(3) creeping bed provided by the utility model, it is plural serial stage structure, and for different sewage, composite fixing special efficacy microbial bacteria, realizes biological sewage treatment from disorder to order step by step, from guerrilla warfare to the transformation of specialization process.High-molecular porous resilient support provides one " working contentedly, the family of breeding from generation to generation " to microorganism, the biological concentration of Chi Tizhong is significantly improved (5-10 doubly), shows surprising treatment effect.
(4) in creeping bed provided by the utility model, it is owing to have employed high-molecular porous Elastic Block biologic packing material, the mode that perforate adopts macropore to combine with micropore, macropore keeps good contact conditions, micropore is used for immobilized microorganism, with a lot of active group in micropore, can form chemical bond with microorganism, there is in molecule strong polar group, thus there is very strong adsorptivity.Just because of this special construction of carrier, make aerobic in carrier, anoxic, anerobe exists simultaneously, nitrification and denitrification carries out simultaneously.Existing engineering practice shows: creeping bed is not when refluxing, and in the removal process of COD degradation, NH3-N and total nitrogen etc. also can be degraded simultaneously, achieve synchronous anti-digestive process, efficiently solve the problem of denitrifying carbon source.
(5) creeping bed provided by the utility model, what the combination of its carrier and microorganism adopted is high-tech immobilized microorganism technology, several modes such as combination is absorption, ionic bonding, altogether bond conjunction use simultaneously, therefore firm binding force, it has broken away from traditional microbial film.
(6) creeping bed provided by the utility model, its immobilization high-effective microorganism also degradable has organism, the ammonia nitrogen of stench class and contains S compound, unpleasant odor in control treatment process, avoids stink to cause secondary pollution to environment, is conducive to improving sewage work's environment.
(7) creeping bed provided by the utility model, it is due to plural serial stage pond shape structure and special bio-carrier, and the occasion making creeping bed can adapt to water quality and quantity often to change, capacity of resisting impact load significantly improves.To the trade effluent of this kind of difficult for biological degradation of process petrochemical complex, there is significant advantage.
(8) creeping bed provided by the utility model, it is simple to operate, and take up an area little, odorless, running cost is low, good heat insulating, is the green cleaner technology of non-secondary pollution.
These are only the preferred embodiment cited by the utility model; and be not used to limit protection domain of the present utility model; the equivalence that those of ordinary skill in art uses the utility model to do is modified or change, all with belonging to scope of patent protection of the present utility model.
Claims (7)
1. a creeping bed, it is characterized in that, this creeping bed is plural serial stage structure, and this creeping bed comprises one-level pretreatment unit, two stage biological processing unit and three grades of advanced treatment units, the first sludge settling district is provided with in this one-level pretreatment unit, it is provided with water inlet pipe and the first shore pipe, the bio-carrier of plural serial stage is provided with in this two stage biological processing unit, aerating system is provided with below this bio-carrier, the second sludge settling district and the second shore pipe is provided with below this aerating system, the 3rd sludge settling district is provided with in these three grades of advanced treatment units, and be provided with medicine system, water shoot and the 3rd shore pipe.
2. creeping bed as claimed in claim 1, is characterized in that, this cascaded structure is annular or rectangle cascaded structure.
3. creeping bed as claimed in claim 1, it is characterized in that, the progression of this cascaded structure is ten grades, Qi Zhongyi, three, five, seven, nine grades be flow lifting type, two, four, six, eight, ten grades for falling streaming.
4. creeping bed as claimed in claim 1, is characterized in that, be fixed with two-layer punched-plate respectively in this two stage biological processing unit, and be filled with bio-carrier between upper and lower layer punched-plate, be equipped with aerating system above lower floor's punched-plate.
5. creeping bed as claimed in claim 4, it is characterized in that, this aerating system is the aeration tube with perforation.
6. creeping bed as claimed in claim 4, it is characterized in that, this bio-carrier is high-molecular porous Elastic Block, and its density is 25kg/m
3.
7. creeping bed as claimed in claim 1, it is characterized in that, the waste water quality that this bio-carrier processes as required is fixed with the microbial bacteria of difference in functionality step by step.
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|---|---|---|---|
| CN201420647475.5U CN204079731U (en) | 2014-11-03 | 2014-11-03 | Creeping bed |
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|---|---|---|---|
| CN201420647475.5U CN204079731U (en) | 2014-11-03 | 2014-11-03 | Creeping bed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291537A (en) * | 2014-11-03 | 2015-01-21 | 北京高能时代环境技术股份有限公司 | Peristalsis bed and wastewater treatment method using same |
| CN106219769A (en) * | 2016-09-26 | 2016-12-14 | 胡淏 | A kind of sewage disposal system |
| CN117720121A (en) * | 2024-02-07 | 2024-03-19 | 四川国泰民安科技有限公司 | Method for producing phosphogypsum by utilizing wet-process phosphoric acid process at low-carbon interface |
-
2014
- 2014-11-03 CN CN201420647475.5U patent/CN204079731U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291537A (en) * | 2014-11-03 | 2015-01-21 | 北京高能时代环境技术股份有限公司 | Peristalsis bed and wastewater treatment method using same |
| CN106219769A (en) * | 2016-09-26 | 2016-12-14 | 胡淏 | A kind of sewage disposal system |
| CN117720121A (en) * | 2024-02-07 | 2024-03-19 | 四川国泰民安科技有限公司 | Method for producing phosphogypsum by utilizing wet-process phosphoric acid process at low-carbon interface |
| CN117720121B (en) * | 2024-02-07 | 2024-04-19 | 四川国泰民安科技有限公司 | Method for producing phosphogypsum by utilizing wet-process phosphoric acid process at low-carbon interface |
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