CN101323485A - Self-forming dynamic membrane coupling corrosion cell type effluent purification bed - Google Patents

Self-forming dynamic membrane coupling corrosion cell type effluent purification bed Download PDF

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Publication number
CN101323485A
CN101323485A CNA2008101386437A CN200810138643A CN101323485A CN 101323485 A CN101323485 A CN 101323485A CN A2008101386437 A CNA2008101386437 A CN A2008101386437A CN 200810138643 A CN200810138643 A CN 200810138643A CN 101323485 A CN101323485 A CN 101323485A
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China
Prior art keywords
corrosion cell
weighting material
self
cell type
forming dynamic
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Pending
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CNA2008101386437A
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Chinese (zh)
Inventor
张建
张成禄
梁爽
孙丰凯
陈素红
李燕
史倩倩
王丽
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Shandong University
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Shandong University
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Application filed by Shandong University filed Critical Shandong University
Priority to CNA2008101386437A priority Critical patent/CN101323485A/en
Publication of CN101323485A publication Critical patent/CN101323485A/en
Pending legal-status Critical Current

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    • 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 invention provides a self-recycling dynamic membrane coupling corrosion-cell sewage purifying bed, comprising a bed body and a membrane element. The internal part of the bed body is divided into a left part and a right part by a water distributing board, a water feeding pipe is arranged on the left part and a water draining pipe and the membrane element are arranged on the right part; the internal cavity of the membrane element is connected with the water draining pipe; the corrosion cell and a side-direction aeration device are arranged in the left part; an opening is cut on the upper part of the corrosion cell and a water intake is arranged at the bottom. A bottom aeration device is arranged on the lower part of the membrane component. The invention adopts the corrosion cell internally so as to enhance the absorbing and coagulating to the mixed sludge-liquid, thus reducing the content of micro-particle, reducing membrane contamination, prolonging the stable running time of the system and enhancing the quality of purified water.

Description

Self-forming dynamic membrane coupling corrosion cell type effluent purification bed
Technical field
The present invention relates to be used for the self-forming dynamic membrane biological respinse clean-up bed of sewage disposal, belong to technical field of sewage.
Background technology
Self-forming dynamic membrane bioreactor replaces second pond as a kind of novel sewage treatment process with membrane module, has become the focus of research in sewage disposal, regeneration field.Bioreactor of dynamic membrane has solid-liquid separation efficiency efficiently, effluent quality is good, can keep the microbial biomass of high density, system volume load is improved, floor space is significantly dwindled, excess sludge production significantly reduces, the sludge treatment expense reduces, easily realize control automatically, convenient operation and management.And the film base material of membrane module is filter cloth (as non-woven fabrics etc.), and its cost is significantly reduced.But, because materials such as molecule, colloid very easily stop up fenestra in the mud mixed liquid, make effluent flux descend, cause film to pollute, need frequent back flushing to change, improved running cost, influenced wastewater treatment efficiency.
Summary of the invention
The present invention is directed to the deficiency that existing self-forming dynamic membrane bioreactor technology exists, provide a kind of can further improve processing efficiency, film pollute little, that treatment effect is good is self-forming dynamic membrane coupling corrosion cell type effluent purification bed.
Self-forming dynamic membrane coupling corrosion cell type effluent purification bed employing following technical proposals of the present invention:
Self-forming dynamic membrane coupling corrosion cell type effluent purification bed, comprise a body and membrane module, be divided into left and right sides two portions by water distribution board in the bed body, left part is provided with water inlet pipe, right part is provided with rising pipe and membrane module, the inner chamber of membrane module is connected with rising pipe, and left part is provided with corrosion cell and side direction aerating apparatus in the bed body, and upper opening, the bottom of corrosion cell are provided with the prosopyle.
The bottom of membrane module is provided with the bottom aerating apparatus.
Corrosion cell comprises cell body, anode weighting material and negative electrode weighting material, anode weighting material and negative electrode weighting material are filled in the cell body after mixing, weighting material accounts for 3/4 of cell body height, and the cell body bottom is provided with the prosopyle, and the weight ratio of anode weighting material and negative electrode weighting material is 3: 2 or 7: 3.The anode weighting material is at least a in iron filings and the aluminium bits, and the negative electrode weighting material is at least a in graphite, haydite, slag, coke and the concrete body.
The present invention places corrosion cell in clean-up bed, corrosion cell generation electrochemical reaction can produce positively charged ions such as iron ion or aluminum ion, enters mud mixed liquid in the clean-up bed with the sewage overflow in the corrosion cell cell body.After sewage enters clean-up bed, redoxomorphism through corrosion cell, the positively charged ion performance adsorption-flocculation effect that produces, pollutents such as a part of BOD, the COD in the degradation of sewage, ammonia nitrogen, pollution substances such as fine particle in the absorption mud mixed liquid reduce the molecule content in the mud mixed liquid.The membrane module surface forms the Dynamic Membrane that one deck is similar to micro-filtration (or ultrafiltration) membrane structure within a short period of time, plays the separating and filtering effect, and after the separating and filtering effect through this layer Dynamic Membrane, the most of pollution substance in the sewage can separatedly be got rid of.And because cationic adsorption-flocculation effect reduces fine particle content, entering the fine particle amount that causes film to stop up (being the film contamination phenomenon) in the space of membrane module will reduce.The side direction aerating apparatus plays and stirs evenly and oxygenation.The bottom aerating apparatus plays the effect that is deposited on pollutent on the membrane module of washing away.So just alleviate the contamination phenomenon of membrane module, prolonged the system stable operation time, improved effluent characteristics.And iron ion can improve microorganism active in the mud mixed liquid, and effluent quality is improved.
The built-in corrosion cell of the present invention has improved the absorption coagulation of mud mixed liquid, makes fine particle content less, has alleviated the film contamination phenomenon, has prolonged the system stable operation time, and has improved effluent quality.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Wherein: 1, water inlet pipe, 2, corrosion cell, 3, the side direction aeration tube, 4, water distribution board, 5, membrane module, 6, rising pipe, 7, bottom aeration tube, 8, the bed body, 9, the prosopyle, 10, PVC baffle plate, 11, air compressor, 12, valve, 13, valve, 14, mud discharging mouth, 15, overflow port, 16, mud discharging mouth.
Embodiment
As shown in drawings, a self-forming dynamic membrane coupling corrosion cell type effluent purification bed body 8 and the membrane module 5 of comprising of the present invention, be divided into left and right sides two portions by water distribution board 4 in the bed body 8, the left part below is provided with water inlet pipe 1 and side direction aeration tube 3, right part is provided with rising pipe 6 and two groups of membrane modules 5 of being made by nonwoven cloth material, and the inner chamber of every group of membrane module all is connected with rising pipe 6.Innovation part of the present invention is that left part is provided with corrosion cell 2 in the bed body, the cell body of corrosion cell 2 is surrounded by a side and the PVC baffle plate 10 of bed body 8, and upper opening, base plate are provided with prosopyle 9, the upper end of baffle plate 10 is provided with overflow port 15, and the below of base plate is provided with mud discharging mouth 16 at the bed body side surface.Weighting material accounts for 3/4 of cell body height, and the anode weighting material is at least a in iron filings and the aluminium bits, and the negative electrode weighting material is at least a in graphite, haydite, slag, coke and the concrete body.Be provided with bottom aeration tube 7 in the bottom of every group of membrane module.Bottom aeration tube 7 is connected with air compressor 11 by valve 13, and side direction aeration tube 3 is connected with air compressor 11 by valve 12.
Waste water is entered by water inlet pipe 1, is introduced into corrosion cell 2, enters mud mixed liquid through water distribution board 4 overflows again, the positively charged ion that corrosion cell 2 redoxomorphismes generate with water inlet through water distribution board 4 also overflow enter in the mud mixed liquid.Because the metabolism of cationic absorption coagulation and mud mixed liquid is removed portion C OD, BOD, pollution substances such as ammonia nitrogen and molecule.Fall most of pollutent through the dynamic membrane filtering that forms on the membrane module 5 at last, make water outlet up to standard.Water outlet is flowed out by rising pipe 6 by flow by gravity.Rising pipe 6 is concordant substantially with membrane module 5, utilizes the difference of altitude between the bed body 8 interior waters surface and the rising pipe 6, the flow by gravity water outlet.3 of side direction aeration tubes stir evenly and oxygenation, when membrane module 5 is subjected to polluting, and valve-off 12, Open valve 13 carries out water conservancy to membrane module 5 and washes away, and pollutent is come off, valve-off 13 then, and open side is to the valve 12 of aeration tube 3 again, and device is operation normally.Excess sludge is discharged by the mud discharging mouth 14 of bottom, bed body 8 right sides.
The present invention has the following advantages:
(1) the present invention adopts nonwoven as the membrane module material, reduces cost; Adopt the flow by gravity water outlet, reduce energy consumption; Adopt With integral type membrane bioreactor structure, reduce floor space, be convenient to management.
(2) the built-in corrosion cell system of the present invention, the absorption coagulation of raising mud mixed liquor makes small particle content less, Alleviate film and pollute phenomenon, prolong parallel-adder settle-out time, and improve effluent quality.
(3) iron filings in the corrosion cell system, aluminium bits, barren rock China ink etc. are the discarded object in the industrial production, have realized the treatment of wastes with processes of wastes against one another.

Claims (5)

  1. One kind self-forming dynamic membrane coupling corrosion cell type effluent purification bed, comprise a body and membrane module, be divided into left and right sides two portions by water distribution board in the bed body, left part is provided with water inlet pipe, right part is provided with rising pipe and membrane module, the inner chamber of membrane module is connected with rising pipe, it is characterized in that: left part is provided with corrosion cell and side direction aerating apparatus in the bed body, and upper opening, the bottom of corrosion cell are provided with the prosopyle.
  2. 2. described self-forming dynamic membrane coupling corrosion cell type effluent purification bed according to claim 1, it is characterized in that: the bottom of described membrane module is provided with the bottom aerating apparatus.
  3. 3. described self-forming dynamic membrane coupling corrosion cell type effluent purification bed according to claim 1, it is characterized in that: described corrosion cell comprises cell body, anode weighting material and negative electrode weighting material, anode weighting material and negative electrode weighting material are filled in the cell body after mixing, weighting material accounts for 3/4 of cell body height, the cell body bottom is provided with the prosopyle, and the weight ratio of anode weighting material and negative electrode weighting material is 3: 2 or 7: 3.
  4. 4. described self-forming dynamic membrane coupling corrosion cell type effluent purification bed according to claim 3, it is characterized in that: described anode weighting material is at least a in iron filings and the aluminium bits,
  5. 5. described self-forming dynamic membrane coupling corrosion cell type effluent purification bed according to claim 3, it is characterized in that: described negative electrode weighting material is at least a in graphite, haydite, slag, coke and the concrete body.
CNA2008101386437A 2008-07-25 2008-07-25 Self-forming dynamic membrane coupling corrosion cell type effluent purification bed Pending CN101323485A (en)

Priority Applications (1)

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CNA2008101386437A CN101323485A (en) 2008-07-25 2008-07-25 Self-forming dynamic membrane coupling corrosion cell type effluent purification bed

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Application Number Priority Date Filing Date Title
CNA2008101386437A CN101323485A (en) 2008-07-25 2008-07-25 Self-forming dynamic membrane coupling corrosion cell type effluent purification bed

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CN101323485A true CN101323485A (en) 2008-12-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011079413A1 (en) * 2009-12-30 2011-07-07 General Electric Company Non-woven membrane bioreactor and its fouling control method
CN102452717A (en) * 2010-10-20 2012-05-16 上海工程技术大学 Non-woven fabric floc dynamic membrane bioreactor for sewage treatment
CN109250794A (en) * 2017-07-15 2019-01-22 大桂环境科技股份有限公司 Fluorine-containing wastewater treatment system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011079413A1 (en) * 2009-12-30 2011-07-07 General Electric Company Non-woven membrane bioreactor and its fouling control method
CN102452717A (en) * 2010-10-20 2012-05-16 上海工程技术大学 Non-woven fabric floc dynamic membrane bioreactor for sewage treatment
CN109250794A (en) * 2017-07-15 2019-01-22 大桂环境科技股份有限公司 Fluorine-containing wastewater treatment system

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Open date: 20081217