CN203668178U - Air floatation- pressure biochemical sewage treatment device - Google Patents
Air floatation- pressure biochemical sewage treatment device Download PDFInfo
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- CN203668178U CN203668178U CN201320823254.4U CN201320823254U CN203668178U CN 203668178 U CN203668178 U CN 203668178U CN 201320823254 U CN201320823254 U CN 201320823254U CN 203668178 U CN203668178 U CN 203668178U
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- Activated Sludge Processes (AREA)
Abstract
The utility model relates to a water treatment device, particularly relates to an air floatation-pressure biochemical sewage treatment device and belongs to the technical field of sewage treatment. The sewage treatment device mainly comprises an air floatation tank, a hydrolysis tank, a gas-water mixing tank for connecting an air compressor and a high pressure pump, a moving bed biofilm reactor with built-in suspended fillers, a membrane filtering unit and a clean water tank; when the sewage treatment device is in operation, through the pressurization of a pressure pump, the gas-water mixing tank, the moving bed biological membrane reactor and the membrane filtering unit are both enabled to be in a pressure state; compared with separate treatment technologies, the sewage treatment device has stronger biochemical functions, so that the activated sludge can more rapidly and more completely degrade the pollutants. The membrane filtering unit adopts a filtering way of cross flow filtration; the cross-flow water flows back to a releaser of the air floatation tank, counting on the pressure per se; as the cross-flow water per se is dissolved air water containing air, compared with conventional air floatation systems, dissolved air pressure equipment is not required. The sewage treatment device is wide in application range, stable in the system, high in treatment efficiency and small in surplus sludge; the sewage treatment device integrates the technologies of chemical coagulation, biological degradation, adsorption and physical filtration into a whole, so that compared with separate technologies, the sewage treatment device has distinct advantages.
Description
Technical field
The utility model relates to a kind of sewage disposal technology, particularly a kind of air supporting-pressure biochemical sewage treatment device.
Background technology
Water resources is the keystone resources of human being's production life, and along with the acceleration of industrialization and urbanization process, water pollution is serious, and the improvement that the protection of water resources and water pollute becomes one of problem that modern society pays close attention to most.Valuable water resources, the quantity discharged that reduces sewage, the pollution that alleviates water surrounding can be saved and utilize to sewage disposal effectively, has obvious social benefit, environmental benefit and economic benefit.The existing century-old history of biological process treatment technology in sewage disposal technology is the target that people pursue but pursue higher treatment effect, lower running cost always.
In recent years biomembrance process often by Application of composite in Activated Sludge Process, make biological treatment system remove aspect each pollutant more effective.In this type of technology, MBBR is a widely used new technology, due to can apposition growth microbial film on the carrier suspending in reactor, microbial film sludge age be longer simultaneously, makes system in the removal ability that improves carbon, also strengthen the removal of nitrogen and phosphorus.
Pressure Biochemical Reactor is at encloses container, adopts the mode of pressurized aeration to carry out a biological disposal upon to sewage.With respect to traditional aeration, it uses carries out oxygenation with respect to 3～5 times of aeration pressure of normal pressure to reactor, therefore, the efficiency that in mixed solution, oxygen shifts to microorganism strengthens greatly, thereby can improve the activated sludge concentration in reactor, be conducive to the propagation of active sludge microorganism and to organic degraded.Domestic have many scholars to carry out research for pressure biochemistry, but be independent technique substantially, and the advantage of pressure biochemistry is not obvious.
The application of membrane separation technique in water treatment is in recent years increasingly general, application of membrane, in Sewage treatment systems, can be omitted to settling system, reduce system floor space, improve effluent quality, in increasing activated sludge concentration, strengthen the stability of Sewage treatment systems.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of system stability, processing efficiency is high, excess sludge is few waste disposal plant, its integrated chemical coagulation, biological degradation, absorption and physical filtering technology, have than the stronger treatment effect of common individual curing technique.
The utility model mainly comprises: MBBR, membrane filter unit and the clean water basin of air flotation pool, hydrolytic tank, connection air compressor machine and the mixing wastewater with air tank of force (forcing) pump, built-in floating stuffing.Force (forcing) pump is arranged between hydrolytic tank and mixing wastewater with air tank.Between described mixing wastewater with air tank, MBBR, membrane filter unit, clean water basin, connect by pipeline successively.Such connectivity structure, makes mixing wastewater with air tank, MBBR, membrane filter unit all in there being the working order of pressure, compares individual curing technique and has stronger biochemical action effect, makes active sludge pollution degradation material more thorough more rapidly.
On described air flotation pool, hydrolytic tank, MBBR, membrane filter unit, be equipped with discharge pipe, MBBR and membrane filter unit are provided with counter-flushing pipeline.Described membrane filter unit is mainly in series by a series of tubular membrane components, and tubular membrane component is made up of a series of film bundles, seals by epoxy resin.Membrane filtration motivating force is provided by MBBR afterbody surplus pressure.Membrane filter unit water inlet place is provided with strainer.
The filter type of membrane filter unit adopts cross flow filter, and cross-flow water outlet relies on the pressure of self to be back to air flotation pool reliever.Sewage is entering before air supporting by dosing pump toward dosing coagulant in water inlet.Because membrane filter unit cross-flow water outlet itself is the dissolved air water that contains air, therefore can save pressure air-dissolving equipment compared with conventional air-flotation system.
The in-built soft hard filler of hydrolytic tank described in the utility model, admission space ratio is 30%～50%.The operating pressure of described mixing wastewater with air tank is 0.3～0.6MPa left and right.Operating pressure in described MBBR is 0.25～0.55MPa, the built-in floating stuffing of reactor, and its diameter is 100～150mm, density is 0.8～0.98g/cm
3, admission space ratio is 70%～75%.Membrane filter unit operating pressure maintains 0.2～0.5MPa left and right.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the utility model structural representation, in Fig. 1:
1, raw water tubes, 2, slag scraper, 3, air flotation pool, 4, scum silica frost pond, 5, hydrolytic tank, 6, force (forcing) pump, 7, mixing wastewater with air tank, 8, MBBR, 9, strainer, 10, backflushing pipe, 11, membrane filter unit, 12, clean water basin, 13, chemical feed pipe, 14, reliever, 15, air flotation pool discharge pipe, 16, hydrolytic tank discharge pipe, 17, air compressor machine, 18, MBBR discharge pipe, 19, membrane filter unit discharge pipe
Embodiment
An embodiment for air supporting-pressure biochemical sewage treatment device as shown in Figure 1, whole device is by air flotation pool 3, hydrolytic tank 5, force (forcing) pump 6, and air compressor machine 17, mixing wastewater with air tank 7, MBBR 8, membrane filter unit 11, clean water basin 12 form.
From the treatment sewage of raw water tubes 1, after chemical feed pipe 13 dosing coagulants, enter air flotation pool 3 entrances.The flco forming through flocculation after elimination of colloid stability in former water fully contacts with the microbubble from reliever 14 and mutually adheres in the zone of action of air flotation pool 3, then in gas-water separation district, realizes gas, water separation, and scum silica frost is struck off and is expelled to scum silica frost pond 4 by slag scraper 2.Air flotation pool water outlet enters hydrolytic tank 5 by gravity flow.The in-built soft hard filler of hydrolytic tank 5, admission space ratio is 30%～50%.
Hydrolytic tank 5 water outlets increase pressure through force (forcing) pump 6, are pressed in mixing wastewater with air tank 7, and the pressurized air of sending here with air compressor machine 17 mixes molten gas simultaneously in tank, make pressure in tank, maintain 0.3～0.6MPa left and right.Dissolved air water enters the MBBR 8 that is filled with floating stuffing by suction culvert, carry out aerobic reaction in reactor.It is 2～5 times of normal pressure that MBBR 8 pressure maintain 0.25～0.55MPa, greatly increase the dissolved oxygen concentration in water, the efficiency that oxygen in mixed solution is shifted to microorganism strengthens greatly, is conducive to the propagation of active sludge microorganism and to organic degraded.Due in pressure environment, the dissolved oxygen in water may penetrate into microbial film internal layer, and microbial film is loose shape, has not only improved degradation rate, and the mud thereupon producing also greatly reduces.Membrane filter unit 11 is delivered in the water outlet of MBBR 8 under pressure, and after membrane filtration filter, water is delivered to clean water basin 12 under the effect of pressure.
Air flotation pool 3, hydrolytic tank 6, MBBR 8, membrane filter unit 11 are equipped with discharge pipeline (15,16,18,19), and MBBR 8 and membrane filter unit 11 are also provided with backflushing pipe 10.
Except being applied to general sanitary sewage and Industrial Wastewater Treatment, the utility model air supporting-pressure biochemical sewage treatment device also can be used for the purifying treatment of tap water, is particularly useful for the drink water purifying processing take high algae, low turbid, micro-polluted surface water as former water.
Claims (4)
1. air supporting-pressure biochemical sewage treatment device: comprise air flotation pool (3), the hydrolytic tank (5), the MBBR (8) that is connected with the mixing wastewater with air tank (7) of air compressor machine (17), built-in floating stuffing, membrane filter unit (11) and the clean water basin (12) that are communicated with successively, it is characterized in that: be provided with force (forcing) pump (6) between hydrolytic tank (5) and mixing wastewater with air tank (7); On air flotation pool (3), hydrolytic tank (5), MBBR (8), membrane filter unit (11), be equipped with discharge pipe (15,16,18,19); MBBR (8), membrane filter unit (11) are provided with counter-flushing pipeline (10).
2. a kind of air supporting-pressure biochemical sewage treatment device according to claim 1, is characterized in that being: the cross-flow effluent recycling of film unit (11) is to the reliever (14) of air flotation pool (3).
3. according to air supporting-pressure biochemical sewage treatment device described in claim 1, it is characterized in that: filling soft or hard filler in described hydrolytic tank (5); Described MBBR (8) is filled with floating stuffing.
4. according to air supporting-pressure biochemical sewage treatment device described in claim 1, it is characterized in that: described membrane filter unit (11) is in series by a series of tubular membrane components, and seals by epoxy resin; Membrane module filtration drive power is provided by MBBR (8) afterbody surplus pressure; Membrane filter unit (11) water inlet place is provided with strainer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823254.4U CN203668178U (en) | 2013-12-09 | 2013-12-09 | Air floatation- pressure biochemical sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320823254.4U CN203668178U (en) | 2013-12-09 | 2013-12-09 | Air floatation- pressure biochemical sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203668178U true CN203668178U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320823254.4U Expired - Fee Related CN203668178U (en) | 2013-12-09 | 2013-12-09 | Air floatation- pressure biochemical sewage treatment device |
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| Country | Link |
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| CN (1) | CN203668178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117705A (en) * | 2017-07-05 | 2017-09-01 | 南京乐翼环境科技有限公司 | A kind of high load capacity biology aerobic oxidative system |
-
2013
- 2013-12-09 CN CN201320823254.4U patent/CN203668178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117705A (en) * | 2017-07-05 | 2017-09-01 | 南京乐翼环境科技有限公司 | A kind of high load capacity biology aerobic oxidative system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20161209 |