CN203602405U - High tower type membrane bio-treatment apparatus - Google Patents

High tower type membrane bio-treatment apparatus Download PDF

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Publication number
CN203602405U
CN203602405U CN201320753926.9U CN201320753926U CN203602405U CN 203602405 U CN203602405 U CN 203602405U CN 201320753926 U CN201320753926 U CN 201320753926U CN 203602405 U CN203602405 U CN 203602405U
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reactor
aerobic zone
sewage
membrane
treatment apparatus
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CN201320753926.9U
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黄评
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SUZHOU SIYUAN ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
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SUZHOU SIYUAN ENVIRONMENTAL PROTECTION ENGINEERING Co Ltd
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Abstract

The utility model discloses a high tower type membrane bio-treatment apparatus, and relates to the field of sewage treatment equipment. The membrane bio-treatment apparatus comprises a reactor, wherein the inner part of the reactor is sequentially divided into an upper aerobic zone, a middle anoxic zone and a lower aerobic zone from top to bottom. By using a high tower type structure, the floor area is reduced, and the utilization rate of the space is improved; anoxic and aerobic environments are realized at different heights in the same reactor by using gradient concentration attenuation of oxygen; by adopting a hollow fiber membrane, the concentration of active sludge in the sewage treatment reactor is high, the sludge age is long, and the membrane bio-treatment apparatus has the characteristics of good effluent quality and high treatment efficiency; a jet aerator replaces internal circulation equipment and can realize two functions of aeration and sewage backflow at the same time, so that the energy consumption of sewage treatment is low, and the running cost is reduced.

Description

High tower membrane biological processor
Technical field
The utility model relates to sewage disposal device field, is specifically related to a kind of high tower membrane biological processor.
Background technology
Sewage disposal of the prior art is mainly constantly degraded by step settling tank, floor space is larger, although adopt membrane bioreactor to carry out sewage disposal, but muddy water needs certain film driving pressure in sepn process, simultaneously, activated sludge concentration in membrane bioreactor is higher, keep enough oxygen transfer rates, must strengthen aeration intensity, in addition, in order to strengthen membrane flux, alleviating film pollutes, must increase flow velocity, wash away film surface, cause the energy consumption of membrane bioreactor higher than traditional biological treatment, and existing denitrification reactor need to arrange the different processing section of dissolved oxygen content in water body, and make sewage in treating processes in anoxic section by internal recycle, aerobic section, constantly produce formation nitrated, denitrification completes C, N, the circulation of O in ecology, thereby realize sewage water denitrification function, if this also must cause improving nitric efficiency, must strengthen nitrate recirculation ratio, thereby strengthen working cost.
Summary of the invention
For solving the problems of the technologies described above, we have proposed a kind of high tower membrane biological processor, by the different oxygen atmosphere of vertical stratification is set in reactor, utilize hollow-fibre membrane to filter, the mode that jet aerator and blast aeration tank combine is power, to reach minimizing floor space, low cost promotes the object purifying water.
For achieving the above object, the technical solution of the utility model is as follows:
High tower membrane biological processor, comprise reactor, described inside reactor is followed successively by aerobic zone, top from top to bottom, oxygen-starved area, middle part and aerobic zone, bottom, middle part, aerobic zone, described top is provided with hollow-fibre membrane, the vertical lower of described hollow-fibre membrane is equipped with blast aeration tank, and described blast aeration tank is circumscribed with Aeration fan; The jet-pump that jet aerator is connected with described jet aerator is equipped with on the top of described reactor, and described jet aerator communicates with the bottom of aerobic zone, described bottom by tracheae; In the bottom of described reactor, sidepiece is provided with water-in, and described water-in and aerobic zone, described bottom are connected; Above described reactor, be provided with out water pump, described in go out water pump and be connected by the top of water pipe and described hollow-fibre membrane.
By technique scheme, the utility model, by utilizing high tower structure, has reduced floor space, has promoted space availability ratio; Different heights in same reactor, utilizes oxygen concentration step to decay to realize anoxic, aerobic environment; By adopting hollow-fibre membrane, make the interior activated sludge concentration of sewage-treating reactor high, sludge age is long, has effluent quality good, the feature that processing efficiency is high; Replace internal recycle equipment with jet aerator, can realize oxygenation, two kinds of effects of sewage backflow simultaneously, made sewage disposal energy consumption low, saved working cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural diagrams intention of the disclosed high tower membrane biological processor of the utility model embodiment.
Numeral and the represented corresponding component title of letter in figure:
1. reactor; 2. aerobic zone, top; 3. hollow-fibre membrane; 4. blast aeration tank; 5. jet aerator; 6. jet-pump; 7. water-in; 8. Aeration fan; 9. go out water pump; 10. oxygen-starved area, middle part; 11 aerobic zone, bottoms.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment
As shown in Figure 1, high tower membrane biological processor, comprise reactor 1, described reactor 1 inside is followed successively by aerobic zone, top 2 from top to bottom, oxygen-starved area 10, middle part and aerobic zone, bottom 11,2 middle parts, aerobic zone, described top are provided with hollow-fibre membrane 3, and the vertical lower of described hollow-fibre membrane 3 is equipped with blast aeration tank 4, and described blast aeration tank 4 is circumscribed with Aeration fan 8; The jet-pump 6 that jet aerator 5 is connected with described jet aerator 5 is equipped with on the top of described reactor 1, and described jet aerator 5 communicates with the bottom of aerobic zone, described bottom 11 by tracheae; In the bottom of described reactor 1, sidepiece is provided with water-in 7, and described water-in 7 is connected with aerobic zone, described bottom 11; Above described reactor 1, be provided with out water pump 9, described water outlet 9 pumps are connected by the top of water pipe and described hollow-fibre membrane 3.
In use, sewage enters to aerobic zone, bottom 11 by the water-in of reactor 1 bottom, an aerobic activated sludge reaction zone is formed on bottom, in this district, sewage mixes with active sludge fast, the oxygen supply of active sludge realizes with jet aerator, jet aerator 5 can drive running by jet-pump 6, organism in this region in sewage can be degraded by microorganisms, while part organonitrogen wherein can be by heterotrophic microorganism oxygenolysis, be converted into into ammonia nitrogen by ammonification, and after transform through nitrifying process and become nitric nitrogen, sewage upward flow is to reactor middle part, i.e. oxygen-starved area 10, middle part, because aerobic zone, bottom 11 has consumed most dissolved oxygen in the effect of microorganism, formed the environment of an anoxic at reactor middle part, under anoxic condition, be just beneficial to the carrying out of anti-nitration reaction, denitrifying bacteria is heterotroph microorganism, in the time of anoxic condition, utilize oxygen in the nitrate nitrogen producing in nitrifying process as electron acceptor(EA), using the organic components in sewage as electron donor, energy is provided and oxidizedly stable nitrite nitrogen, nitrate nitrogen is reduced into gaseous nitrogen, sewage continues upward flow to reactor top, it is aerobic zone, top 2, owing to being provided with blast aeration tank 4 on reactor top, just formed the environment of oxygen excess on top, organic components major part in sewage is all decomposed by microorganism simultaneously, so more be conducive to the generation of nitration reaction, nitration reaction is completed by aerobic autotrophic type microorganism, under aerobic state, utilize inorganic carbon ammonia nitrogen to be changed into nitrite nitrogen for carbon source, and then be oxidized to the process of nitric nitrogen, sewage after the nitration reaction of reactor top loops back reactor bottom by jet-pump 6 again and proceeds nitrated, anti-nitration reaction.
By with upper type, the utility model can reach following effect:
First, sewage is intake from reactor bottom water-in, sewage fully mixes with active sludge in reactor, reaction, effluent adopting tubular fibre film filtration effluent after reactor, replace traditional biological treatment technology end second pond with hollow-fibre membrane, in reactor, keep high reactivity sludge concentration, improve biological treatment organic loading, thereby reduce sewage treatment facility floor space, and by keeping low sludge loading to reduce surplus sludge volume, hollow-fibre membrane can carry out solid-liquid separation efficiently in addition, its separating effect is much better than traditional settling tank, effluent quality is good, going out water suspension can be lower than 5mg/l, while is due to the efficient crown_interception of hollow-fibre membrane, microorganism is trapped in reactor completely, separating completely of realization response device hydraulic detention time and sludge age, operation is controlled stable flexibly, be beneficial to holding back and breeding of nitrobacteria, system nitrification efficiency is high, because mud age can be very long, thereby greatly improve the degradation efficiency of hardly degraded organic substance, reactor moves under age at high volumetric loading, low sludge loading, long mud, and excess sludge production is extremely low, because mud age can endless, can realize in theory zero sludge discharge.
Secondly, the aeration aerating of reactor, is divided into upper and lower two portions aeration, bottom adopts jet aerator, ties up in reactor and utilizes the oxygenation of jetting type scatterer, and it can be placed in darker water, have very strong stirring action, placement process is simple, and oxygen transmission efficiency is high, because reactor adopts high tower pattern, common blast aeration does not reach so high pressure requirement, does not just have such problem with jet-flow aeration, blast aeration tank is set below the hollow-fibre membrane of aerobic zone, reactor top, because reactor adopts lower water intake mode, oxygen in water is flowing through in reactor, , consumed by aerobic microbiological when the bottom, while reaching reactor top, dissolved oxygen content in sewage is just very low, so aeration aerating just need to be set separately on top in order to reach better treatment effect, in addition, due to hollow-fibre membrane in use, the materials such as the micropartical in aggregate and the sewage of hollow-fibre membrane surface meeting accumulation actives mud, in the time of long-time continuous water outlet, easily stop up membrane module, so need to have a large amount of aerations to stir below membrane module, the air bubble producing and upward flow rinse, scouring film surface, the pollution dirt that is attached to film surface sediment easily comes off, reach the object of cleaning film, delay the phenomenon generation that film stops up.
Finally, sewage treatment process will be realized the effect of denitrogenation, just must form at inside reactor the condition of the local aerobic of local anoxic, the utility model structures are high tower structure, aspect ratio is large, and in short transverse, in sewage, dissolved oxygen concentration is step and changes, in same reactor under, in, on self-assembling formation aerobic, anoxic, aerobic part, thereby realize the process of digestion, denitrification, digestion, reach denitrogenation object.
Above-described is only the preferred implementation of the utility model high tower membrane biological processor; should be understood that; for the person of ordinary skill of the art; do not departing under the prerequisite of the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims (1)

1. high tower membrane biological processor, it is characterized in that, comprise reactor, described inside reactor is followed successively by aerobic zone, top from top to bottom, oxygen-starved area, middle part and aerobic zone, bottom, middle part, aerobic zone, described top is provided with hollow-fibre membrane, and the vertical lower of described hollow-fibre membrane is equipped with blast aeration tank, and described blast aeration tank is circumscribed with Aeration fan; The jet-pump that jet aerator is connected with described jet aerator is equipped with on the top of described reactor, and described jet aerator communicates with the bottom of aerobic zone, described bottom by tracheae; In the bottom of described reactor, sidepiece is provided with water-in, and described water-in and aerobic zone, described bottom are connected; Above described reactor, be provided with out water pump, described in go out water pump and be connected by the top of water pipe and described hollow-fibre membrane.
CN201320753926.9U 2013-11-26 2013-11-26 High tower type membrane bio-treatment apparatus Active CN203602405U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9333464B1 (en) 2014-10-22 2016-05-10 Koch Membrane Systems, Inc. Membrane module system with bundle enclosures and pulsed aeration and method of operation
CN106115896A (en) * 2016-06-22 2016-11-16 南京瑞洁特膜分离科技有限公司 A kind of modularity nitration denitrification membrane bioreactor
USD779631S1 (en) 2015-08-10 2017-02-21 Koch Membrane Systems, Inc. Gasification device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9333464B1 (en) 2014-10-22 2016-05-10 Koch Membrane Systems, Inc. Membrane module system with bundle enclosures and pulsed aeration and method of operation
US9956530B2 (en) 2014-10-22 2018-05-01 Koch Membrane Systems, Inc. Membrane module system with bundle enclosures and pulsed aeration and method of operation
US10702831B2 (en) 2014-10-22 2020-07-07 Koch Separation Solutions, Inc. Membrane module system with bundle enclosures and pulsed aeration and method of operation
USD779631S1 (en) 2015-08-10 2017-02-21 Koch Membrane Systems, Inc. Gasification device
USD779632S1 (en) 2015-08-10 2017-02-21 Koch Membrane Systems, Inc. Bundle body
CN106115896A (en) * 2016-06-22 2016-11-16 南京瑞洁特膜分离科技有限公司 A kind of modularity nitration denitrification membrane bioreactor

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C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Huang Ping

Inventor after: Lei Xiaoyang

Inventor after: Dai Qing

Inventor after: Niu Guanglu

Inventor before: Huang Ping

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: HUANG PING TO: HUANG PING LEI XIAOYANG DAI QING NIU GUANGLU