CN106957107A - Using the sewage disposal system of MBR membrane modules - Google Patents

Using the sewage disposal system of MBR membrane modules Download PDF

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Publication number
CN106957107A
CN106957107A CN201611270415.6A CN201611270415A CN106957107A CN 106957107 A CN106957107 A CN 106957107A CN 201611270415 A CN201611270415 A CN 201611270415A CN 106957107 A CN106957107 A CN 106957107A
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CN
China
Prior art keywords
mbr membrane
membrane modules
oxygen
compatibility pool
sludge concentration
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Pending
Application number
CN201611270415.6A
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Chinese (zh)
Inventor
黄义忠
何锐
黄德忠
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Jiaxing Li Ren Environmental Protection Technology Co Ltd
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Jiaxing Li Ren Environmental Protection Technology Co Ltd
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Priority to CN201611270415.6A priority Critical patent/CN106957107A/en
Publication of CN106957107A publication Critical patent/CN106957107A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1236Particular type of activated sludge installations
    • C02F3/1268Membrane bioreactor systems
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/006Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention discloses a kind of sewage disposal system of use MBR membrane modules, it includes wastewater disposal basin, oxygen compatibility pool, multiple pulse water distribution pipes and multiple MBR membrane modules in oxygen compatibility pool, the pulse water distribution pipe is uniformly arranged between multiple MBR membrane modules, the MBR membrane modules are all round closure, the membrane module of its bottom aeration, it is aerated by the boring aeration pipe of the MBR membrane module bottoms, the pulse water distribution pipe stirs oxygen compatibility pool base sludge by pulse flow, sludge concentration control is in setting range value in the oxygen compatibility pool, when the dissolved oxygen in oxygen compatibility pool exceedes setting value, improve sludge concentration, if dissolved oxygen is less than another setting value, reduce sludge concentration.By controlling the sludge concentration in oxygen compatibility pool, simultaneous oxygen MBR environment is obtained, while effectively stirring the region that MBR membrane modules can not be looked after by pulse water distribution pipe so that the operation of sewage disposal system becomes simple and reliable, according to adjustment sludge concentration, to meet the dissolved oxygen value of water process.

Description

Using the sewage disposal system of MBR membrane modules
Technical field
The present invention relates to sewage disposal system field, more particularly to using the sewage disposal system of MBR membrane modules.
Background technology
Field of waste water treatment, is in integrated artistic through a kind of commonly used processing method for relatively more difficult biochemical sewage Front end increase and oxygen handling process, such as hydrolysis acidification.Hydrolysis acidification is general to be carried out in simultaneous oxygen environment, and is existed in oxygen environment A large amount of and oxygen bacterium can secrete endocellular enzyme and ectoenzyme simultaneously, can degrade it is general it is aerobic in the case of the material that can not degrade, Such as pollutant containing phenyl ring, and part toxic pollutant.In printing and dyeing, the industry such as pharmacy often meets this pollutant.
During common simultaneous oxygen process operation, and oxygen sludge typically has two ways to be circulated, the first be by and Oxygen increases sedimentation basin behind pond, by and oxygen sludge settling get off and oxygen compatibility pool returned by pump, but this method it occur frequently that Sedimentation effect is poor, and oxygen sludge concentration is low, and the poor phenomenon of oxygen effect.Importantly, part be lost in simultaneous oxygen sludge and And oxygenase becomes pollutant in Aerobic Pond, Aerobic Pond burden is added.Second method is not set and oxygen precipitation pond, but is allowed And oxygen sludge and aerobic sludge are circulated in big system together.Second method is low due to investing, and obtains the wide application of comparison, especially Its sanitary sewage denitrogenation, in dephosphorization technology.But second method can not be avoided and oxygen bacterium is too drastic in the environment of variation And the consumed time is adapted to again, while part and oxygen the bacterium dead burden for adding Aerobic Pond in Aerobic Pond, also increase The load of second pond after Aerobic Pond.
Membrane biological reactor process (hereinafter referred to as MBR) the traditional sedimentation basin of membrane separation technique substitution and sludge circulation system System, bioreactor is gone out by the sewage water filtration Jing Guo biochemical treatment, obtains turbidity very low processing water.Meanwhile, the dirt in system Mud, bacterium and larger molecular organicses are also kept in the reactor.This separate mode improves effluent quality, adds reaction Sludge concentration in device, remains beneficial microorganism, compared with traditional sedimentation basin, and MBR technology effluent quality is good, and COD (changes Learn oxygen demand), BOD (biochemical oxygen demand (BOD) or bod), turbidity is all very low, and most of bacterium, virus is trapped.MBR skills The efficient crown_interception of film also achieves the separation of dwell time of sewage and microorganism residence time in art, microorganism and sludge Concentration is high, and floor space is small, and sludge yield is small, and treatment effeciency is high.
Chinese invention patent 200910115352.0 discloses a kind of implementation method of facultative aerobic membrane bioreactor, mainly The simultaneous oxygen environment of system is formed by controlling the aeration quantity of membrane module bottom, but for MBR system, aeration quantity is first To need to meet the cleaning action of film, reached to control aeration quantity and oxygen environment frequently can lead to film excess contamination and nothing Method is run.
Thus, it is necessary to provide a kind of new sewage disposal system to solve the above problems.
The content of the invention
For the above-mentioned problems in the prior art, the present invention provides a kind of sewage disposal system of use MBR membrane modules System, its purpose is effectively controls the dissolved oxygen value of waste water in oxygen compatibility pool, and effluent characteristics are good.
In order to solve the above technical problems, the following technical scheme that the present invention is used:At a kind of sewage of use MBR membrane modules Reason system, it includes wastewater disposal basin, oxygen compatibility pool, multiple pulse water distribution pipes in oxygen compatibility pool and multiple MBR membrane modules, the arteries and veins Rush water distributor to be uniformly arranged between multiple MBR membrane modules, the MBR membrane modules are all round closure, the film of its bottom aeration Component, is aerated by the boring aeration pipe of the MBR membrane module bottoms, and the pulse water distribution pipe is stirred by pulse flow Sludge concentration control is in setting range value in oxygen compatibility pool base sludge, the oxygen compatibility pool, when the dissolved oxygen in oxygen compatibility pool exceedes During setting value, sludge concentration is improved, if dissolved oxygen is less than another setting value, sludge concentration is reduced.
Increase sludge concentration is realized by supplementing sludge;Reduction sludge concentration is realized by discharging unnecessary sludge.
Dissolved oxygen is controlled by controlling the spacing between MBR membrane modules, when needing to reduce dissolved oxygen, increases MBR membrane modules Between spacing.
By automatic detection sludge concentration, the distance between MBR membrane modules according to mud concentration adjust automatically.
It is additionally provided between the wastewater disposal basin and the oxygen compatibility pool for grid.
Compared with prior art, advantage of the invention is that:By controlling the sludge concentration in oxygen compatibility pool, simultaneous oxygen has been obtained MBR environment, while effectively stirring the region that MBR membrane modules can not be looked after by pulse water distribution pipe so that sewage disposal system Operation becomes simple and reliable, according to adjustment sludge concentration, to meet the dissolved oxygen value of water process.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, it can also obtain other according to these accompanying drawings Accompanying drawing, wherein:
Accompanying drawing 1 is the present invention and the planar structure schematic diagram of oxygen flat board MBR sewage disposal system.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation Example is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common All other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected Enclose.
Referring to Fig. 1, a kind of and oxygen flat board MBR sewage disposal system, including wastewater disposal basin 1, grid 2 and positioned at and oxygen Pulse water distribution pipe 3 and MBR membrane modules 4 in pond 5.Dyeing waste water is housed, or other industrial wastewaters in wastewater disposal basin 1.This Embodiment is illustrated by dyeing waste water.
COD (COD) about about exists in 700ppm, SS (water storage coefficient or elastic specific yield) in dyeing waste water 200ppm.First, waste water removes big impurity by grid 2, pulse water distribution pipe 3 be uniformly arranged in multiple MBR membrane modules 4 it Between, MBR membrane modules 4 are resistant to high sludge concentration, while stain resistance is good, can meet and be used under high sludge concentration.Its middle arteries The pulse period for rushing the water outlet of water distributor 3 is about 2 minutes/10 seconds.Several MBR membrane modules 4 are uniformly arranged in oxygen compatibility pool 5, Spacing between MBR membrane modules 4 is 3 meters, and the size of oxygen compatibility pool 5 was designed according to the residence time of 5 hours.
The flux of MBR membrane modules 4 is 15LMH, in the present embodiment, and MBR membrane modules 4 use flexible flat membrane module, is resistant to High sludge concentration.The production water of MBR membrane modules 4 is pumped out by the self priming pump above water producing pipe 6.MBR membrane modules are all round closure, bottom The membrane module of aeration, is aerated by the boring aeration pipe of the bottom of MBR membrane modules 4, and aeration quantity was according to 7 liter/square metre * minutes Setting, for cleaning MBR films.In other embodiments, aeration quantity is defined by the cleaning needs for meeting film, general every square metre The suggestion aeration quantity of film is 2-7 liters/square metre * minutes, and too low aeration quantity may cause the blocking of film., the band of MBR membrane modules 4 The sewage of dynamic component bottom by component upwards, then to surrounding, flow downward, form so-called circulation.This circulation is added The mixing of muddy water, also increases the cleaning performance of MBR films.Meanwhile, MBR membrane modules 4 are evenly distributed to by pulse water distribution pipe 3 Between region, when wastewater treatment, region between MBR membrane modules 4 is stirred in pulse water outlet simultaneously, so as to improve in oxygen compatibility pool 5 The concentration of activated sludge, limitation is reached by the spacing between the arrangement mode of pulse water distribution pipe 3 and rational MBR membrane modules 4 Dissolved oxygen and the purpose of limitation oxygen supply so that oxygen compatibility pool 5 is in and oxygen condition.
Sludge concentration typically requires control within the specific limits (such as 3000-20000mg/l) in oxygen compatibility pool 5, the present embodiment, Sludge concentration is controlled in 1000mg/l or so, this dissolved oxygen and load for depending mainly in oxygen compatibility pool 5.If average dissolution oxygen surpasses (such as 2mg/l) can realize increase sludge concentration, it is necessary to increase sludge concentration by supplementing sludge when crossing setting value;If flat , can be by discharging unnecessary sludge come real when equal dissolved oxygen is less than another setting value (such as 0.5mg/l), it is desirable to reduce sludge concentration Now reduce sludge concentration.The increase of sludge concentration will substantially reduce the diffusion of dissolved oxygen so that the dissolved oxygen of system is reduced.
The system, can also control dissolved oxygen by controlling spacing between MBR membrane modules, when needing to reduce dissolved oxygen, Increase the spacing between MBR membrane modules, when needing to increase dissolved oxygen, reduce the spacing between MBR membrane modules.When MBR membrane modules 4 Between spacing when becoming remote, overall aeration quantity is reduced in oxygen compatibility pool 5, and natural oxygen supply declines.But to keep designing in oxygen compatibility pool 5 Enough membrane areas, if distance becomes remote between MBR membrane modules 4, it is necessary to which the more close MBR membrane modules 4 or higher of design are arranged MBR membrane modules, this, which puts commercially available flexible flat film, easily to accomplish.
The pulse water distribution pipe 3 is evenly distributed on the interval region of MBR membrane modules 4, especially when between MBR membrane modules 4 During hypertelorism, this arrangement is particularly important, general to share a water distributor 3 per 2-4 MBR module.So it can both reduce The quantity of water distributor, also reaches the purpose of water distribution uniformity.The pulse period of the water outlet of pulse water distribution pipe 3 is generally 1-10 minutes Good, pulse flow is limited with can effectively stir base sludge.In order to prevent the blocking of pulse water distribution pipe, the precision of coarse rack 2 Need to be less than the 50% of water distributor perforate, the perforate flow velocity of pulse water distribution pipe 3 is needed about in 2-3 meter per seconds.
The water outlet of MBR membrane modules 4 can be obtained by suction pump or gravity.Can be convenient by controller and automatic valve Control the start-stop of each MBR membrane modules.
The simultaneous oxygen flat board MBR film Waste Water Treatments of the present invention, by controlling the arrangement distance of MBR membrane modules 4, to control And the sludge concentration in oxygen system, simultaneous oxygen MBR environment has been obtained, can be specifically by automatic detection sludge concentration, automatically The distance between MBR membrane modules 4 are adjusted to adjust.It can not be looked after by the effectively agitation MBR membrane modules 4 of pulse water distribution pipe 3 simultaneously Region so that and the operation of oxygen MBR system becomes simple and reliable.
After of the invention and oxygen flat board MBR film wastewater treatments, the present embodiment exists by measure in system dissolved oxygen 1.5mg/l, be and oxygen environment.Effluent index is:COD is less than 120ppm, and SS is less than 1ppm.Reach design standard.
Embodiments of the invention are these are only, are not intended to limit the scope of the invention, it is every to be said using the present invention Equivalent structure or equivalent flow conversion that bright book content is made, or other related technical fields are directly or indirectly used in, Similarly it is included within the scope of the present invention.

Claims (5)

1. a kind of sewage disposal system of use MBR membrane modules, it is characterised in that:It includes wastewater disposal basin, oxygen compatibility pool, positioned at simultaneous oxygen Multiple pulse water distribution pipes in pond and multiple MBR membrane modules, the pulse water distribution pipe be uniformly arranged in multiple MBR membrane modules it Between, the MBR membrane modules are all round closure, and the membrane module of its bottom aeration passes through the boring aeration of the MBR membrane module bottoms Pipe is aerated, and the pulse water distribution pipe stirs sludge concentration in oxygen compatibility pool base sludge, the oxygen compatibility pool by pulse flow Control when the dissolved oxygen in oxygen compatibility pool exceedes setting value, improves sludge concentration, if dissolved oxygen is less than another in setting range value During one setting value, sludge concentration is reduced.
2. as claimed in claim 1 using the sewage disposal system of MBR membrane modules, it is characterised in that:By supplement sludge come Realize increase sludge concentration;Reduction sludge concentration is realized by discharging unnecessary sludge.
3. as claimed in claim 1 using the sewage disposal system of MBR membrane modules, it is characterised in that:By controlling MBR film groups Spacing control dissolved oxygen between part, when needing to reduce the spacing between dissolved oxygen, increase MBR membrane modules, when needing, increase is molten Oxygen is solved, reduces the spacing between MBR membrane modules.
4. as claimed in claim 3 using the sewage disposal system of MBR membrane modules, it is characterised in that:It is dirty by automatic detection Mud concentration, the distance between MBR membrane modules according to mud concentration adjust automatically.
5. as claimed in claim 1 using the sewage disposal system of MBR membrane modules, it is characterised in that:Positioned at the wastewater disposal basin It is additionally provided between the oxygen compatibility pool for grid.
CN201611270415.6A 2016-12-31 2016-12-31 Using the sewage disposal system of MBR membrane modules Pending CN106957107A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110498567A (en) * 2019-08-28 2019-11-26 武汉森泰环保股份有限公司 Facultative type MBR treatment tank and equipment and processing method
WO2020023777A1 (en) * 2018-07-26 2020-01-30 APTwater, LLC Piping manifold for pulsating flow
CN117466431A (en) * 2023-10-17 2024-01-30 天津市水利工程集团有限公司 Intelligent modularized rural domestic sewage membrane method integrated treatment device and method

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020023777A1 (en) * 2018-07-26 2020-01-30 APTwater, LLC Piping manifold for pulsating flow
US10843950B2 (en) 2018-07-26 2020-11-24 APTwater, LLC Piping manifold for pulsating flow
CN110498567A (en) * 2019-08-28 2019-11-26 武汉森泰环保股份有限公司 Facultative type MBR treatment tank and equipment and processing method
CN117466431A (en) * 2023-10-17 2024-01-30 天津市水利工程集团有限公司 Intelligent modularized rural domestic sewage membrane method integrated treatment device and method

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Application publication date: 20170718