CN204111414U - A kind of river course waste water circulation process MBR device - Google Patents
A kind of river course waste water circulation process MBR device Download PDFInfo
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- CN204111414U CN204111414U CN201420497819.9U CN201420497819U CN204111414U CN 204111414 U CN204111414 U CN 204111414U CN 201420497819 U CN201420497819 U CN 201420497819U CN 204111414 U CN204111414 U CN 204111414U
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- starved area
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- Activated Sludge Processes (AREA)
Abstract
River course waste water circulation process MBR device, comprise into the oxygen-starved area at water place, MBR unit, MBR unit is made up of the membrane module of Activated Sludge Growth, micro-hole aerator is provided with below membrane module, oxygen-starved area gravity flow enters MBR unit, and MBR cellular system is made up of active sludge and membrane module, and membrane module is energy drawing and pulling type diaphragm or flat sheet membrane structure, MBR unit is connected with aerobic zone, is provided with the return line being connected to oxygen-starved area from aerobic zone.The utility model device, by aeration rate, water flow, the isoparametric adjustment of sludge concentration, makes system reach the running status of the best, guarantees that water outlet can be up to standard.The utility model apparatus structure is simple, reliable, reduce running cost and construction cost, thus create environment benefit and social benefit.
Description
One, technical field
The utility model device is a kind of waste disposal plant, and this utility model device is mainly used in the process of the urban river water of micro-pollution.
Two, background technology
Water is an important factor of Economic development and social sustainable development.Along with the increase of the expansion of city size, industrial expansion and population, water environment pollution has become a great problem restricting many Sustainable Development of Regions.
Integrated film bio-reactor (MBR), also Nets impregnated is claimed to be a kind of novel process in recent years risen, membrane module is placed in bio-reactor by this technique, obtain film filtration effluent by the negative pressure-pumping effect of technique pump, the membrane module being applied to MBR has hollow-fibre membrane, tubular ceramic membrane and flat film.This technique directly can be stayed solid substance and other macromolecular substance in bio-reactor, causes certain rotating fluid by aeration in pond, to increase the turbulent flow on film surface and to alleviate the pollution on film surface.Owing to not needing the recycle system of mixed solution, energy consumption is lower, takes up an area more compact, do not need complicated supporter, receive much attention thus in the technical study of the process of sewage compared with the MBR of separated type.
In MBR technique, owing to instead of the second pond in conventional activated sludge process with membrane module, can efficient solid-liquid separation be carried out, overcome the deficiencies such as effluent quality is stable not, mud easily expands in traditional technology, thus there is following advantages:
1. carry out solid-liquid separation efficiently, capacity of resisting impact load is strong, and effluent quality high-quality stable, can remove SS completely, also has good rejection effect to bacterium and virus, and water outlet can direct reuse;
2. due to the efficient crown_interception of film, microorganism can be made to be trapped in completely in bio-reactor, realization response device hydraulic detention time (HRT) is separated completely with sludge age (SRT's), makes operation control to stablize more flexibly;
3. the microbial biomass of high density in bio-reactor, can be maintained, can up to more than 10g/L, treatment unit volumetric loading is high, and floor space can reduce to 1/3 to 1/5 of traditional activated sludge process;
4. be conducive to breeding microorganism retaining and growing as nitrobacteria slowly, system nitrification efficiency is improved.Also can increase some hardly degraded organic substances hydraulic detention time in systems in which, effectively the microorganism of decomposing hardly degraded organic substance is trapped in reactor;
5.MBR generally runs under high volumetric loading, low sludge loading, and excess sludge production is low, and sludge discharging period reaches 60 days, reduces sludge treatment expense;
6. can realize automatically controlling completely, convenient operation and management.
7. by unique operation scheme, film surface not easily blocks, and Membrane cleaning is long for interval time, and it is simple to wash film mode, thus decreases maintenance of the equipment work.
Therefore, study novel MBR device and there is very wide prospect and profound significance.
Three, summary of the invention
The utility model object is: propose a kind of novel MBR device, especially river course waste water circulation process MBR device, overcomes the defect of prior art, provides a kind of energy-conservation efficient waste disposal plant.There is pullable diaphragm design, be convenient to installing/dismounting; It adopts continuum micromeehanics, the water outlet of vacuum primingpump intermittent suction.
Technical solutions of the utility model are, river course waste water circulation process MBR device, comprise into the oxygen-starved area at water place, MBR unit, MBR unit is made up of the membrane module of Activated Sludge Growth, is provided with micro-hole aerator below membrane module, and oxygen-starved area gravity flow enters MBR unit (system), MBR unit is made up of active sludge and membrane module, membrane module is energy drawing and pulling type diaphragm or flat sheet membrane structure, and MBR unit is connected with aerobic zone, is provided with the return line being connected to oxygen-starved area from aerobic zone.
Between flat sheet membrane, add special air bump rinse operation device, adopt absolute construction to connect, be convenient to dismounting and maintenance;
The utility model MBR treatment unit, is particularly useful for the urban river water process of micro-pollution.
Gas blower by micro-hole aerator in MBR system continuous oxygen supply to meet microorganism growth, a large amount of bubble passes membrane module with higher speed simultaneously, the current of gas entrainment form certain hydraulic shear and souring to film surface, prevent film surface contaminant over-deposit, substantially prolongs the matting cycle of film.
The utility model device has set up air bump rinse operation device in addition, forms strong eddy flow, to increase the turbulent flow on film surface, strengthen washing away film surface, alleviate the pollution of the foreign material such as microorganism to film surface, increase membrane flux, reduce number of times membrane module being carried out to off-line cleaning.
The utility model beneficial effect: the utility model device, by aeration rate, water flow, the isoparametric adjustment of sludge concentration, makes system reach the running status of the best, guarantees that water outlet can be up to standard.The utility model apparatus structure is simple, reliable, reduce running cost and construction cost, thus creates huge environmental benefit and social benefit.
Four, accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Five, embodiment
Integration MBR reaction unit is made up of oxygen depletion system and MBR system.Major equipment has: membrane module, suction water pump, roots blower, aerating apparatus, whipping appts, automatic control system etc.
Reactor is cuboid container, and useful volume is about 6000L.Test film is polyvinylidene difluoride (PVDF) (PVDF) flat sheet membrane, 0.09 ~ 0.12 μm, aperture, monolithic membrane physical dimension 1190mm × 508mm, and a whole set of membrane module is equipped with 40 films altogether, and useful area is 48m
2.
Former water is promoted the oxygen-starved area entering into integrated MBR reaction unit by vacuum primingpump, be uniformly mixed through stirrer in oxygen-starved area and the ammonia nitrogen of going out in waste water through denitrification, then gravity flow enters MBR system, MBR system is made up of active sludge and membrane module, and most of organism is decomposed by the microorganisms elimination at this.
Gas blower by micro-hole aerator in MBR system continuous oxygen supply to meet microorganism growth, a large amount of bubble passes membrane module with higher speed simultaneously, the current of gas entrainment form certain hydraulic shear and souring to film surface, prevent film surface contaminant over-deposit, substantially prolongs the matting cycle of film, waste water up to standard is after MBR membrane sepn, extracting outer row out by the suction pump of MBR film, stopping controlling out the switch of water pump to keep constant level than with the liquid level in reactor according to taking out.Aeration is even, and excess sludge production is low, and treatment effect is stablized, and structure is simple, easy to maintenance;
The utility model adds special air bump rinse operation device between flat sheet membrane, interval is once cleaned half an hour, each scouring time is 5 minutes, gas-water ratio is more than 25:1, aeration rate is apparently higher than conventional processes, but the mutual relationship can destroyed when aeration intensity is excessive in mud flco between microorganism, inorganic particle and Extracellular polymers etc., zoogloea is caused to disintegrate, the grain diameter of film surface deposition is reduced, the structure of filter cake is tightr, thus resistance of membrane filtration is increased, fouling membrane aggravates, and shortens the membrane filtration cycle.The time that therefore will control air bump rinse operation avoids excess aeration.Diaphragm design is pullable, is convenient to installing/dismounting; Be applicable to the urban river water process of micro-pollution.
Claims (2)
1. river course waste water circulation process MBR device, it is characterized in that comprising into the oxygen-starved area at water place, MBR unit, MBR unit is made up of the membrane module of Activated Sludge Growth, micro-hole aerator is provided with below membrane module, oxygen-starved area gravity flow enters MBR unit, and MBR cellular system is made up of active sludge and membrane module, and membrane module is energy drawing and pulling type diaphragm or flat sheet membrane structure, MBR unit is connected with aerobic zone, is provided with the return line being connected to oxygen-starved area from aerobic zone.
2. a kind of river course waste water circulation process MBR device according to claim 1, is characterized in that between flat sheet membrane, add air bump rinse operation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497819.9U CN204111414U (en) | 2014-08-29 | 2014-08-29 | A kind of river course waste water circulation process MBR device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497819.9U CN204111414U (en) | 2014-08-29 | 2014-08-29 | A kind of river course waste water circulation process MBR device |
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| CN204111414U true CN204111414U (en) | 2015-01-21 |
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| CN201420497819.9U Active CN204111414U (en) | 2014-08-29 | 2014-08-29 | A kind of river course waste water circulation process MBR device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500477A (en) * | 2017-09-22 | 2017-12-22 | 陈彬 | A kind of municipal wastewater processing unit and its method of work |
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2014
- 2014-08-29 CN CN201420497819.9U patent/CN204111414U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500477A (en) * | 2017-09-22 | 2017-12-22 | 陈彬 | A kind of municipal wastewater processing unit and its method of work |
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| C14 | Grant of patent or utility model | ||
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Address after: 211102 Jiangning City, Nanjing Province, the integrity of the road No. 1800, Patentee after: NANJING CEC ENVIRONMENTAL PROTECTION CO., LTD. Address before: 211102 Jiangning City, Nanjing Province, the integrity of the road No. 1800, Patentee before: Nanjing CEC Environmental Protection Co., Ltd. |