CN201809253U - Internal-external membrane filtration and separation sewage treatment device - Google Patents

Internal-external membrane filtration and separation sewage treatment device Download PDF

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Publication number
CN201809253U
CN201809253U CN2010202665346U CN201020266534U CN201809253U CN 201809253 U CN201809253 U CN 201809253U CN 2010202665346 U CN2010202665346 U CN 2010202665346U CN 201020266534 U CN201020266534 U CN 201020266534U CN 201809253 U CN201809253 U CN 201809253U
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China
Prior art keywords
membrane
membrane filtration
separation system
external
film
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Expired - Lifetime
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CN2010202665346U
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Chinese (zh)
Inventor
施军营
乔如林
陈磊
王飞
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BIOLAND ENVIRONMENTAL TECHNOLOGIES GROUP CORP., LTD.
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Zhengchuan Lande Environmental Protection Science And Technology Co Ltd
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Abstract

The utility model provides a novel internal-external membrane filtration and separation sewage treatment device. On the basis of the structure and the running manner of a membrane filtration and separation system in the conventional membrane bioreactor, by combining the structure and the running manner with test data of production tests, an internal membrane filtration and separation system is organically combined with an external membrane filtration and separation system structure, thereby forming a novel modular membrane separation system. The sewage treatment device fully combines the convenience in maintenance and operation of the external membrane filtration and separation system and the advantage of low energy consumption of the internal membrane filtration and separation system, filters refractory organic matters through a membrane technology, utilizes respective advantages of biological treatment and the membrane technology, avoids the deficiency of pure reverse osmosis, is suitable for treating waste water of various different water qualities and in different treatment scales, and can satisfy the engineering requirements of fields such as reclaimed water reuse, and the like.

Description

Interior external placed type membrane filtration separates waste disposal plant
Technical field
The utility model relates to a kind of interior external placed type membrane filtration and separates waste disposal plant, particularly a kind of life and industrial sewage comprehensive treatment equipment that is applicable to the sewage disposal of different quality, different treatment scale, middle water reuse.
Background technology
At present, at home and abroad in the technical field of sewage, the traditional active sludge method is more common technology, and membrane bioreactor is that the sewage separating and filtering of progressively promoting is both at home and abroad recently handled new technology, and it is the product that traditional active sludge and modern membrane sepn filtering technique combine.
Be accompanied by the continuous development of modern membrane technology, increasing membrane filtration technique is applied to sewage treatment area gradually.Conventional membrane for water treatment technology comprises: microfiltration membrane (MF), ultra-filtration membrane (UF), nanofiltration membrane (NF) and reverse osmosis membrane technology such as (RO), the development of membrane technique at first is to quote on the basis of water treatment and constantly grow up satisfying people, but the critical shortage of and water resources serious day by day, membrane technique along with environmental pollution in waste water control, middle water reuse as a practical technique.Membrane process is usually used in the advanced treatment after the second-stage treatment, how substitutes pre-treatment such as the precipitation of conventional depth in handling, filtration, absorption, degerming with micro-filtration (MF), ultrafiltration (UF).Carry out water softening and desalination with nanofiltration (NF), reverse osmosis (RO).
Present stage, membrane bioreactor (MBR) system that develops on MF and UF basis has been widely used in biochemical terminal mud-water separation process, utilize the crown_interception of film to make microorganism be trapped within the bio-reactor fully, realize separating fully of hydraulic detention time and sludge age, make the sludge concentration in the biochemical reactor bring up to 10~20g/L from 3~5g/L, thereby improved the volumetric loading of reactor, reactor volume is reduced.The prolongation in mud mud age helps long nitrococcus and the nitrifier of phase from generation to generation and is retained in the reactor, and it is more nitrated that ammonia nitrogen is obtained, and realizes biological denitrificaion by denitrification process again.
Along with further exploitation, particularly mould material and the film product of cross-current type membrane technique constantly develops, and the decline significantly of film price in recent years, membrane bioreactor (MBR) technology is developed rapidly in the application of wastewater treatment.MBR and combination process thereof have been obtained widespread use and effect preferably in oozing drop liquid treatment project.
Summary of the invention
The purpose of this invention is to provide a kind of principal pollutant such as COD, BOD and ammonia nitrogen of can effectively degrading, effluent quality is good, no bacterium and solids; And the microorganism concn height in the membrane bioreactor, anti impulsion load, its membrane bioreactor is in high volumetric loading, low sludge loading, long-time operation down, and surplus sludge volume is little.
The application's above-mentioned purpose reaches by the following technical programs:
The external placed type membrane filtration separates waste disposal plant in a kind of, comprise: housing, water inlet pipe, liquidometer, the bio-contact oxidation reaction tank, filler, fresh feed pump, sludge reflux pump, aeration tube, blowdown mud blow-off valve, baffle plate, header, vacuum pressure gauge, rising pipe, film flushing aspiration tube, gas meter, gas meter, valve, pneumatic pump, liquid meter, suction pump, circulation tube, membrane bioreactor, but it is characterized in that also comprising the jet pressurized aeration device of negative pressure-pumping or flow by gravity, the membrane sepn pond, and can be arranged on the built-in membrane module in the membrane sepn pond or be arranged on external membrane assembly outside the membrane sepn pond separately, membrane module aeration tube and water producing pipe, wherein: described gas meter can connect pneumatic pump by valve, described housing top can be connected with liquidometer, on the described housing side, the lower end can have water inlet pipe and blowdown mud blow-off valve, and supporting the concentrating of described membrane module aeration tube and water producing pipe is provided with or is integrated in the single module.
A kind of optimal technical scheme is characterized in that: described membrane bioreactor is made of solid-liquid separation film system and bio-reactor two portions, and it is in high volumetric loading, low sludge loading, long-time operation down.
A kind of optimal technical scheme is characterized in that: the built-in film in the described built-in membrane module that is arranged in the membrane sepn pond adopts tubular fibre curtain type membrane or flat film.
A kind of optimal technical scheme is characterized in that: the pond type in described membrane sepn pond adopts square, around the pool wall a plurality of membrane sepn pond is set, and is provided for many ponds merging coupled fasteners interface and pipe joint around the pool wall.
A kind of optimal technical scheme, it is characterized in that: membrane module aeration tube and water producing pipe are supporting to be integrated in the single module, this module can be controlled the operation of this device and stops by automatic control equipment, and the automatic recoil cleaning and the matting of the parameter controlling diaphragm that passes through the numerical value of instrument and preset realize zero manual operation off-line matting.
A kind of optimal technical scheme is characterized in that: after the described off-line matting, the liquid in the reaction tank sees through the solid-liquid separation film, and solid is trapped within the reaction tank.
A kind of optimal technical scheme is characterized in that: the described external membrane assembly that is arranged on separately outside the membrane sepn pond is a cellular system independently.
A kind of optimal technical scheme is characterized in that: described independently cellular system adopts the cross-current type operation scheme, needs bigger circular flow.
A kind of optimal technical scheme is characterized in that: by the filtration sieving action of film, liquid sees through the product water side water outlet of film from pool wall.
In the technique scheme, membrane bioreactor (MBR) technology is at first removed easily biodegradable organics and ammonia nitrogen by efficient biological process, filter hardly degraded organic substance by membrane technique then, simultaneously, allow salt pass through to get rid of, both utilize biological treatment and membrane technique advantage separately, avoided the shortcoming of simple reverse osmosis again.
At first, the principal feature of membrane bioreactor (MBR) and combination process thereof has: effectively degrade principal pollutant COD, BOD and ammonia nitrogen; Effluent quality is good, no bacterium and solids; Microorganism concn height in the reactor, anti impulsion load; Because larger molecular organics is trapped within the reactor, can obtain the longer time that contacts with microorganism, help the cultivation of nitrifier, nitrococcus and obligate degraded microorganism; Reactor is in high volumetric loading, low sludge loading, long-time operation down, and surplus sludge volume is little.
Wherein, membrane bioreactor mainly is made of solid-liquid separation film system and bio-reactor two portions.A large amount of microorganism (active sludge) fully contacts with matrix (labile organic compound in the waste water etc.) in bio-reactor, carries out metabolism by oxygenolysis and grows, breeds to keep self, makes organic pollutant degradation simultaneously.Membrane module carries out solid-liquid separation to waste water and mud mixed liquid.Return bio-reactor after mud is concentrated, thereby avoided the loss of microorganism.Membrane module is equivalent to the second pond of traditional technology, but has overcome a lot of shortcomings of traditional second pond, can more effective separation waste water and mud, and stable effluent quality.
Usually there are two kinds of built-in membrane filtration separation system and external membrane filtering separation systems in the solid-liquid separation film system in the membrane bioreactor that adopts.Built-in membrane filtration separation system generally adopts the submerged membrane assembly, being about to membrane module directly inserts in the reaction tank, adopt modes such as negative pressure-pumping or flow by gravity, make the liquid in the reaction tank see through the solid-liquid separation film, and solid (comprising active sludge) is trapped within the reaction tank; External membrane filtering separation system generally adopts the complete membrane filtration system of external placed type, utilizes fluid machinery such as water pump that the mixed solution in the reaction tank is conveyed in the film system, and by the filtration sieving action of film, liquid sees through the product water side water outlet of film from system.General external membrane filtering separation system adopts the cross-current type operation scheme, needs bigger circular flow.
Simultaneously, the present invention is according to the structure and the operation scheme of the membrane filtration separation system in the existing membrane bioreactor, rule of thumb data in conjunction with production test, built-in membrane filtration separation system and external membrane filtering separation system are organically combined, form novel modularization film separating system, the convenience of the attended operation of external placed type and built-in less energy-consumption advantage are combined fully, can be applicable to that the engineering in fields such as the sewage disposal of various water quality, different treatment scale, middle water reuse is used.
Advantage of the present invention is:
It is combining built-in membrane filtration separation system and the system's organic integration of external membrane filtering separation that interior external placed type membrane filtration separates waste disposal plant.
The operation logic of built-in membrane filtration separation system is simple, ability consumption is very little, and floor space is little, but because membrane module is directly installed in the reaction tank, clean and the attended operation inconvenience, when the object water quality of handling is relatively poor, regularly need off-line to clean, off-line needs the mechanical means lifting when cleaning, and independent film service sink need be set, and security and operability are all not satisfactory; Maintenance and operation is convenient to because be cellular system independently in external membrane filtering separation system, and the water quality of water outlet is also comparatively stable relatively, but power consumption is big, investment and operation expense height.
Description of drawings
Fig. 1 is built-in membrane filtration separation system synoptic diagram among the present invention;
Fig. 2 is external placed type membrane filtration separation system synoptic diagram among the present invention;
Fig. 3 is United-MBR large-scale production synoptic diagram among the present invention;
Fig. 4 is United-MBR module diagram among the present invention;
Embodiment
The present invention is further illustrated below by embodiment.But this is not to be limitation of the present invention, and those skilled in the art can make various modifications or improvement according to basic thought of the present invention, but only otherwise break away from basic thought of the present invention, all within the scope of the present invention.
United-MBR membrane filtration separation system in the present invention in the external placed type membrane filtration separation waste disposal plant is to set up on the technology and application foundation of conventional membrane filtration and separation equipment, through the modular technology of organic combination and pilot development formation.
Described United-MBR membrane filtration and separation equipment adopts special-purpose membrane sepn pond, external membrane, tubular fibre curtain type membrane or plate type membrane assembly in it, systems such as the integrated film of said system, fresh feed pump, sludge reflux pump, wherein, the supporting equipment of membrane module aeration tube and water producing pipe can be provided with or be integrated in the single module according to project scale collection needs.Square pond type is adopted in the membrane sepn pond, around the pool wall fastening piece interface and pipe joint is set, and is convenient to many ponds and merges connection.
The module of the membrane filtration separation system of external placed type membrane filtration separation waste disposal plant can be made in advance in novel, and on-the-spot installation workload is less.
During the membrane filtration and separation equipment operation, operation by automatic controlling system water pump and blower fan and stopping, and the automatic recoil cleaning and the matting of the parameter controlling diaphragm that passes through the numerical value of instrument and preset, and can realize the zero manual operation off-line matting that general built-in film device is not realized.And, do not influence the continuity of the normal operation and the membrane filtration system water outlet of biochemical treatment system because the modularization setting can realize single off-line matting of overlapping film device.And the negative pressure-pumping that adopts and the mode of gravity water outlet greatly reduce operation energy consumption, also utilize the environmental protection of surrounding environment simultaneously.

Claims (4)

1. the external placed type membrane filtration separates waste disposal plant in one kind, comprise: housing, water inlet pipe, liquidometer, the bio-contact oxidation reaction tank, filler, fresh feed pump, sludge reflux pump, aeration tube, blowdown mud blow-off valve, baffle plate, header, vacuum pressure gauge, rising pipe, film flushing aspiration tube, gas meter, gas meter, valve, pneumatic pump, liquid meter, suction pump, circulation tube, membrane bioreactor, but it is characterized in that also comprising the jet pressurized aeration device of negative pressure-pumping or flow by gravity, the membrane sepn pond, and can be arranged on the built-in membrane module in the membrane sepn pond or be arranged on external membrane assembly outside the membrane sepn pond separately, membrane module aeration tube and water producing pipe, wherein: described gas meter can connect pneumatic pump by valve, described housing top can be connected with liquidometer, on the described housing side, the lower end can have water inlet pipe and blowdown mud blow-off valve, and supporting the concentrating of described membrane module aeration tube and water producing pipe is provided with or is integrated in the single module.
2. the external placed type membrane filtration separates waste disposal plant in according to claim 1, it is characterized in that: described membrane bioreactor is made of solid-liquid separation film system and bio-reactor two portions, and it is in high volumetric loading, low sludge loading, long-time operation down.
3. the external placed type membrane filtration separates waste disposal plant in according to claim 1, it is characterized in that: the built-in film in the described built-in membrane module that is arranged in the membrane sepn pond adopts tubular fibre curtain type membrane or flat film.
4. the external placed type membrane filtration separates waste disposal plant in according to claim 1 and 2, it is characterized in that: the pond type in described membrane sepn pond adopts square, around the pool wall a plurality of membrane sepn pond is set, and is provided for many ponds merging coupled fasteners interface and pipe joint around the pool wall.
CN2010202665346U 2010-07-22 2010-07-22 Internal-external membrane filtration and separation sewage treatment device Expired - Lifetime CN201809253U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN2010202665346U CN201809253U (en) 2010-07-22 2010-07-22 Internal-external membrane filtration and separation sewage treatment device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642918A (en) * 2012-04-28 2012-08-22 江苏大孚膜科技有限公司 Coupled plate membrane component
CN102642917A (en) * 2012-04-28 2012-08-22 江苏大孚膜科技有限公司 Displacement type flat master boot record (MBR) membrane assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642918A (en) * 2012-04-28 2012-08-22 江苏大孚膜科技有限公司 Coupled plate membrane component
CN102642917A (en) * 2012-04-28 2012-08-22 江苏大孚膜科技有限公司 Displacement type flat master boot record (MBR) membrane assembly

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: LANDE ENVIRONMENTAL PROTECTION TECHNOLOGY GROUP CO

Free format text: FORMER NAME: ZHENGCHUAN LANDE ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 450000 Building No. 6, No. 1309 East navigation road, Zhengzhou economic and Technological Development Zone, Henan, China

Patentee after: Lande Environmental Protection Technology Group Co., Ltd.

Address before: 450000 Building No. 6, No. 1309 East navigation road, Zhengzhou economic and Technological Development Zone, Henan, China

Patentee before: Zhengchuan Lande Environmental Protection Science and Technology Co., Ltd.

C56 Change in the name or address of the patentee

Owner name: BIOLAND TECHNOLOGY GROUP CO., LTD.

Free format text: FORMER NAME: LANDE ENVIRONMENTAL PROTECTION TECHNOLOGY GROUP CO., LTD.

CP03 Change of name, title or address

Address after: 450000 Building No. 6, No. 1309 East navigation road, Zhengzhou economic and Technological Development Zone, Henan, China

Patentee after: BIOLAND ENVIRONMENTAL TECHNOLOGIES GROUP CORP., LTD.

Address before: 450000 Building No. 6, No. 1309 East navigation road, Zhengzhou economic and Technological Development Zone, Henan, China

Patentee before: Lande Environmental Protection Technology Group Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110427