CN106082433A - Biological solid-carrying type film biological unit reactor - Google Patents

Biological solid-carrying type film biological unit reactor Download PDF

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Publication number
CN106082433A
CN106082433A CN201610705198.2A CN201610705198A CN106082433A CN 106082433 A CN106082433 A CN 106082433A CN 201610705198 A CN201610705198 A CN 201610705198A CN 106082433 A CN106082433 A CN 106082433A
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China
Prior art keywords
biological
unit
solid
film
type film
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Application number
CN201610705198.2A
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Chinese (zh)
Inventor
李晓春
秦建刚
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Shanghai Yawei Environmental Technology Co Ltd
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Shanghai Yawei Environmental Technology Co Ltd
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Priority to CN201610705198.2A priority Critical patent/CN106082433A/en
Publication of CN106082433A publication Critical patent/CN106082433A/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
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • 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

Abstract

The present invention relates to biological solid-carrying type film biological unit reactor, including cell body, include in it is characterized in that cell body that multiple film units and the filler unit of following structure are disposed adjacent and form, separated by protection network between adjacent unit, a. film unit, side is surrounded by described protection network and is formed, being internally provided with membrane module, b. filler unit, side is surrounded by described protection network and is formed, bottom is provided with interception net, and inside is filled with multiple bio-carrier.The film biological reinforced reactor floor space of the present invention can save 30% 40%, and without sludge settling problem, in reaction tank, MLSS concentration is up to more than 10000mg/L, and resistance to overload shock ability is strong.This technology to the clearance of major pollutants up to COD >=93%, SS=100%.

Description

Biological solid-carrying type film biological unit reactor
[technical field]
The present invention relates to the aerobic process equipment in sewage disposal device, be specifically related to biological solid-carrying type film biological unit anti- Answer device.
[background technology]
Domestic industry, urbanization band water processing environment problem are increasingly paid attention to by the mankind, and are affected people The daily life of class.China's municipal sewage has the features such as aquifer yield big, broad covered area, of a great variety, intractability.Traditional A lot of fraud is there is in water treatment facilities at the water treatment facilities of the aspect newer type such as cost of investment, energy consumption, floor space, treatment effect End.Along with the appearance of novel environmental protection equipment, municipal sewage treatment is in gold period of reform.Municipal sewage treatment upgrading From " 15 " to " 12 " period, China's urban sewage treatment market experienced by development rapidly.2000 to 2014, city City's wastewater treatment rate has been risen to 90.2% by 34.3%.Following carrying along with " urban wastewater treatment firm pollutant emission standard " Height, urban sewage treatment process and equipment will make great progress in terms of cost of investment, floor space, energy consumption.
[summary of the invention]
The purpose of the present invention essentially consists in solution conventional film biological reactor process time of staying length, sludge loading weight, sets Received shipment battalion debugging complexity, the easy biological pollution of film and the problem being difficult to maintenance replacing.
To achieve these goals, it is provided that a kind of biological solid-carrying type film biological unit reactor, including bag in cell body, cell body The multiple film units and the filler unit that include following structure are disposed adjacent and form, and are separated by protection network between adjacent unit,
A. film unit, side surrounded by described protection network and forms, be internally provided with membrane module,
B. filler unit, side surrounded by described protection network and forms, and bottom is provided with interception net, and inside is filled with multiple Bio-carrier.
This biology solid-carrying type film biological unit reactor also has a following prioritization scheme:
The material of bio-carrier is porous ceramics, activated carbon, polyurethane or PVA.
Bio-carrier particle diameter is between 1~3cm.
Bio-carrier has stereo hollow structure, neighboring band hole, and hole is deeply not less than 1mm, and specific surface area should 500m2/m3(filler), main material is the bioaffinity materials such as polyurethane, pottery, clay.
Described membrane module includes the fibrous membrane of hollow cylindrical, and fibrous membrane is coated with housing, and housing side is distributed energy Allow the hole that waste water passes through, housing be positioned on the position of cylindrical hollow and be sealedly connected with outlet conduit.
Fibrous membrane uses inoranic membrane or organic membrane.
The membrane aperture of fibrous membrane is 0.1-0.4um, film external diameter 420~480 μm, thick 40~50 μm of membranous wall, porosity 40~ 50%, water flux is at 0.15Mpa, and 25 DEG C is 100~120L/h/m2, pH range 1-14.
All separated by filler unit between film unit and film unit.
Described film unit and filler unit are surrounded positive six prisms by protection network.
The aerobic biologic membrane that described bio-carrier surface adsorption has strain to be formed.
The present invention main acquisition of technology progress is as follows:
(1) biological solid-carrying type film biological unit reactor can maintain the effective microbe amount of high concentration, processing means volume Load is high, and floor space is few, can filter the harmful substance such as antibacterial, virus, is not required to set sterilizing equipment decontaminating apparatus, is not required to dosing, is not required to dirt Mud backflow and discharge excess sludge, be not required to control chlorine residue, make management and operate more convenient, and can save dosing sterilization brought Longtime running expense.
(2) membrane module has efficient crown_interception, and microorganism can be made to be completely trapped in bioreactor unit, can be easily Realize solid-liquid separation, save sedimentation tank, it is not necessary to backwash, and effluent quality well stable, can be with direct reuse.
(3) bio-carrier and membrane module are the arrangement of junior unit type shape, on the one hand make waste water at biological solid-carrying type film biology list In elementary reaction device, hydraulics fluidised form is baffling state, makes waste water running route in pond extend, and can make waste water and life Thing film is fully contacted, and allows biological respinse fully carry out;On the other hand by arranged evenly to component of a system blocking, can facilitate Install, overhaul and change renewal, particularly when loading microorganisms carrier or membrane module is aging or when needing to update, can save greatly The repair time of amount.
(4) ratio of efficient bacterium in processing system is increased by load biological reinforcing technology, when shortening the startup of system Between, reach higher quick treatment effect, the most also can strengthen stability and the anti impulsion load ability of system, at hydraulic retention In the case of time is constant, preferable removal effect can be reached.This technical costs is low, and degradation efficiency is high, non-secondary pollution.
(5) load biological reinforcing technology is used to greatly reduce common on the premise of strengthening contaminant degradation efficiency The problems such as the sludge concentration of membrane bioreactor is too high, the film easy fouling and clogging of silk, microorganism is mainly attached on filler, Shao Liangyou The microorganism separated out is also because of the hydraulics structure that equipment is special, and major part can be trapped within filler space, continues guarantee attached State.
[accompanying drawing explanation]
Fig. 1 biology solid-carrying type film biological unit reactor cross section structure chart;
Fig. 2 biology solid-carrying type film biological unit reactor plane structure chart;
In figure, 1. housing, 2. intercept net, 3. bio-carrier, 4. fibrous membrane, 5. aerator, 6. protection network.
[detailed description of the invention]
Hereinafter, being described further for the present invention with accompanying drawing, embodiment and accompanying drawing are only used for explaining in conjunction with the embodiments Bright rather than limit protection scope of the present invention.
Biological solid-carrying type film biological unit reactor primary structure in the present embodiment includes cell body, bio-carrier, film group Part, high-efficiency strain, aerator, cell body, interception net, protection network, pump.Bio-carrier is mainly used in loading high-efficiency strain;Film group Part is mainly used in retaining macromolecular substances and high-efficiency strain, it is ensured that the delivery turbidity of waste water;High-efficiency strain be through special domestication, After screening, by transport pump to biological solid-carrying type film biological unit reactor, and it is attached on bio-carrier;Aerator position In biological solid-carrying type film biological unit reactor bottom, carry a certain amount of air by air compressor and enter membrane biological reaction Device, for the oxygen that the biodegradation offer of high efficiency flora is enough, washes away a small amount of attachment being attached to film silk surface simultaneously;Cell body It is mainly used in carrying the materials such as bio-carrier, membrane module, high-efficiency strain, aerator, interception net, protection network, waste water, belongs to and set Standby agent structure;Intercept net and be used for retaining the bio-carrier of flowing, prevent face, bio-carrier emersion pond or sink at the bottom of pond;Anti- On the one hand protecting wire net is used for intercepting bio-carrier, prevents bio-carrier from entering membrane module;On the other hand maintenance it is prone to, when equipment needs During maintenance, dismount certain several unit therein and have no effect on.
As it is shown in figure 1, include in cell body that multiple film units of following structure and filler unit are disposed adjacent and form, adjacent Separated by protection network between unit, all separated by filler unit between film unit and film unit, film unit and filler unit Positive six prisms are surrounded by protection network,
A. film unit, side surrounded by described protection network and forms, be internally provided with membrane module, and membrane module includes hollow posts The fibrous membrane of shape, fibrous membrane is coated with housing, and housing side is distributed the hole that waste water can be allowed to pass through, and housing is positioned in cylindricality It is sealedly connected with outlet conduit on empty position,
B. filler unit, side surrounded by described protection network and forms, and bottom is provided with interception net, and inside is filled with multiple Bio-carrier.
Separate with packing area with the form of separate unit, it is simple to separating of membrane module is overhauled or changed.This equipment complex ABFT, membrane filtration, the advantage of immobilized microorganism technique, not only save second pond, reduces floor space, and And extend the waste water time of staying in biological solid-carrying type film biological unit reactor, make waste water fully connect with bio-carrier Touch, in the case of ensureing stably reaching standard water outlet, reduce investment and operating cost.
As shown in Fig. 1~2, in the present embodiment, bio-carrier and membrane module are honeycomb arrangement, and this arrangement mode not only saves Save floor space, and the loss of high-efficiency strain can have been reduced, improve purification efficiency.The material of bio-carrier can be many Hole pottery, activated carbon, polyurethane or PVA etc., particle diameter is between 1~3cm, and pore-size distribution is reasonable, voidage is high, specific surface area Greatly, having that good hydrophilic, biological affinity be strong, chemical stability, good mechanical property, carrier is stereo hollow structure, outward Peripheral band tooth, tooth depth ≮ 1mm, inside and outside have three layers of open circles.High-efficiency strain after activation pumps into biological solid-carrying type film biology list Elementary reaction device, uses microorganism curing technology to be attached on bio-carrier by high-efficiency strain, and forms one layer of aerobic biologic membrane.Gu Surely changing microbial technique is free cell or enzyme to be fixed by chemistry or physical means, makes water-insoluble But still there is bioactive derivant.High-efficiency strain can be firmly fixed on bio-carrier by this combination, And difficult drop-off and loss.High-efficiency strain is to have the excellent of specific function by add from nature screening in system Gesture strain or produced by assortment of genes technology.High-efficiency strain biology solid-carrying type film is pumped into by after induction the 1/4 of high-efficiency strain Biological unit reactor, after soaking 4h, again adds culture medium once by 1/4 of the high-efficiency strain after induction every 4h, by several times will Bacterium solution pumps into biological solid-carrying type film biological unit reactor;Through repeatedly adding the immersion of bacterium solution and 48h, porous active high-area carbon To the absorbtivity of bacterium already close to time saturated, complete the immobilization (such as the patent No.: ZL201120520934.X) of high-efficiency strain.Raw Membrane module in thing solid-carrying type film biological unit reactor uses inoranic membrane or organic membrane, and conventional membrane material is polypropylene (PP), polyethylene (PE), polrvinyl chloride (PVC), Kynoar (PVDF), politef (PTFE), polysulfones (PS) etc., film Aperture is 0.1-0.4um, film external diameter 420~480 μm, thick 40~50 μm of membranous wall, porosity 40~50%, water flux 100~ 120L/h/m2(0.15Mpa, 25 DEG C), pH range 1-14.The service life of membrane module is about about 5 years.Through Black Liquor with Efficient Bacteria Planting the waste water after degraded to enter from hole in membrane module, macromolecular substances and high-efficiency strain in waste water are trapped.Aeration fills Below hollow fiber film assembly, the shearing force of aeration formation and turbulent fluctuation, make solid be difficult to accumulate in film surface, reduce The blocking of film and energy consumption.
Above-mentioned biological solid-carrying type film biological unit reactor floor space can save 30%-40%, asks without sludge settling Topic, resistance to overload shock ability is strong.This technology to the clearance of major pollutants up to COD >=95%, SS > 98%.
Operation case:
Research material: northern area rubber Cu Ji manufacturing enterprise, day waste water generation amount is 400 tons.One phase waste water processes Technique is " regulating reservoir+hydrolysis acidification+contact-oxidation pool+sedimentation tank ", and water outlet requires to reach integrated wastewater discharge standard (GB Three grades of discharge standards in 8978-1996), reluctantly can be up to standard.Along with increasing, due to this enterprise's week of around factory and resident While there is no comprehensive sewage treatment plant, it requires that its sewage water outlet must accomplish integrated wastewater discharge standard (GB 8978- 1996) 1 grade of B standard in.
Its waste water system is transformed by the process system of the application present invention, and biochemical unit utilizes original activated sludge Pond, makes filler and film unit with the pre-add workpiece of PVC material, and filler uses ceramic polyurethane compounded mix, specific surface area 550m2/m3, proportion 1.05.Film part uses the hollow-fibre membrane of PVDF material, promotees this rubber in spawn culture laboratory needle After dominant bacteria has been turned out in agent, in the way of adding online in input coefficient, it is ensured that cell body outlet dissolved oxygen > 2mg/L.System The system domestication debugging time is about 2 weeks, and after normal table runs, concrete Testing index see table shown:
Project COD<sub>Cr</sub> BOD<sub>5</sub> NH<sub>4</sub><sup>+</sup>-N SS
Former water 1355 280 65 680
Former Process for Effluent 490 - 30 130
Water outlet after transformation 52 - 3 <10
It appeared that fully achieved 1 grade of B requirement of water outlet through improved water outlet, utilize domestication after micro- Biological this biodegradation character bad waste water being carried out biodegradation, the waste water after biological treatment is through membranous system water outlet, Rear qualified discharge.Integral device is taken up an area less than 100 square metres, and compact conformation is stable, simple to operate.Integrated treatment becomes This is less than 10 yuan.

Claims (10)

1. a biological solid-carrying type film biological unit reactor, including cell body, it is characterised in that include following structure in cell body Multiple film units and filler unit are disposed adjacent and form, and are separated by protection network between adjacent unit,
A. film unit, side surrounded by described protection network and forms, be internally provided with membrane module,
B. filler unit, side surrounded by described protection network and forms, and bottom is provided with interception net, and inside is filled with multiple biology Carrier.
2. biological solid-carrying type film biological unit reactor as claimed in claim 1, it is characterised in that the material of bio-carrier is Porous ceramics, activated carbon, polyurethane or PVA.
3. biological solid-carrying type film biological unit reactor as claimed in claim 1, it is characterised in that bio-carrier particle diameter is between 1 ~3cm.
4. biological solid-carrying type film biological unit reactor as claimed in claim 1, it is characterised in that bio-carrier has solid Hollow structure, neighboring band hole, hole is deeply not less than 1mm, specific surface area 500m2/m3, main material is that consor thing is affine Property material.
5. biological solid-carrying type film biological unit reactor as claimed in claim 1, it is characterised in that described membrane module includes The fibrous membrane of hollow cylindrical, fibrous membrane is coated with housing, and housing side is distributed the hole that waste water can be allowed to pass through, and housing is positioned at It is sealedly connected with outlet conduit on the position of cylindrical hollow.
6. biological solid-carrying type film biological unit reactor as claimed in claim 5, it is characterised in that fibrous membrane uses inoranic membrane Or organic membrane.
7. biological solid-carrying type film biological unit reactor as claimed in claim 5, it is characterised in that the membrane aperture of fibrous membrane is 0.1-0.4um, film external diameter 420~480 μm, thick 40~50 μm of membranous wall, porosity 40~50%, water flux at 0.15Mpa, 25 DEG C It is 100~120L/h/m2, pH range 1-14.
8. solid-carrying type film biological unit reactor as claimed in claim 1 biological, it is characterised in that film unit and film unit it Between all separated by filler unit.
9. solid-carrying type film biological unit reactor as claimed in claim 1 biological, it is characterised in that described film unit and filling out Material unit is surrounded positive six prisms by protection network.
10. the biological solid-carrying type film biological unit reactor described in claim 1, it is characterised in that described bio-carrier surface It is adsorbed with the aerobic biologic membrane that strain is formed.
CN201610705198.2A 2016-08-22 2016-08-22 Biological solid-carrying type film biological unit reactor Pending CN106082433A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108744947A (en) * 2018-05-22 2018-11-06 东莞市环境科学研究所 A kind of new membrane bio-trickling filter processing organic exhaust gas method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108744947A (en) * 2018-05-22 2018-11-06 东莞市环境科学研究所 A kind of new membrane bio-trickling filter processing organic exhaust gas method

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