CN109574155A - A kind of screw type rotating electrode of electrolytic sewage slot - Google Patents

A kind of screw type rotating electrode of electrolytic sewage slot Download PDF

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Publication number
CN109574155A
CN109574155A CN201910038612.2A CN201910038612A CN109574155A CN 109574155 A CN109574155 A CN 109574155A CN 201910038612 A CN201910038612 A CN 201910038612A CN 109574155 A CN109574155 A CN 109574155A
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CN
China
Prior art keywords
electrode
sewage
slot
shaft
electrolytic
Prior art date
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Pending
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CN201910038612.2A
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Chinese (zh)
Inventor
韦志锋
曾小波
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Individual
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Individual
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Priority to CN201910038612.2A priority Critical patent/CN109574155A/en
Publication of CN109574155A publication Critical patent/CN109574155A/en
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    • 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
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • 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
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • 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
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • C02F2001/46123Movable electrodes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

A kind of electrolytic sewage slot screw type rotating electrode is tilted a certain angle with the bus of two pieces of strips of conductive thin plates with shaft axis, helical form, which is equably coiled, is fixed on same root insulation shaft outer surface, the flexible lamp polar body of a helical form truncated cone-shaped is formed, two-plate docks power positive cathode respectively.During electrolysis handles sewage, electrode body is slowly rotated, and does not generate attachment, the accumulation of floccule, clogging on pole plate.Continuous inclined screw electrode electrode plate structure enhances the driving effect of sewage, can taking human as control sewage the processing reaction time, impact resistance;The advantages that screw type rotating electrode has electrochemical reaction effective area big, large specific surface area, and electrolysis treatment effeciency is high, and occupied area is small.

Description

A kind of screw type rotating electrode of electrolytic sewage slot
Technical field
The present invention relates to one kind to be aoxidized and be sterilized to sewage by electrochemistry, and water body is clarified, and improves sewage treatment effect The screw type rotating electrode of the electrolytic sewage slot of fruit, belongs to electrolytic sewage process field.
Background technique
In recent years, China's rapid economic development, urban wastewater discharge continue to increase, and Urban Water Environment is by serious dirt Dye, effluent problem has been China one severe environmental protection and economic problems.Due to cost of sewage disposal height, financial input is difficult Think after so that wastewater treatment in China rate is very low, the cost and treatment effeciency of sewage treatment greatly restrict sewage treatment industry Development.Therefore, research and development cost is low, and speed is fast, high-efficient sewage treatment technique, new equipment are sewage treatment industry Developing direction.
Electrolytic treatment method of wastewater be exactly in electrolytic cell device pole plate be powered, make in waste water harmful substance in yin, yang two Oxidation and reduction reaction, the method for transforming into innocuous substance to realize purification of waste water occurs on extremely respectively.
In a variety of metal materials that can be used as electrode, the price of aluminium and iron due to its good dissolubility and relative moderate Most frequently it is chosen as electrolytic bath electrode plate.When industrial wastewater contains plurality of heavy metal pollutant, soda acid pollutant etc., iron is mostly used to make Electrode;And for polluting relatively light sanitary sewage, then mostly use metallic aluminium to make electrode.This is because aluminium electrode water outlet is steady Fixed, cleaning, is able to satisfy higher process demand.Electrolytic cell requires to take appropriate spacing between two-plate, to guarantee that power consumption is less And it is easily installed, runs and repairs.
This water treating method includes that electrochemical action, indirect oxidation and the indirect reduction effect on electrode surface (utilize electricity Substance chemically reacts in the chemical product and water that pole-liquid interface generates), electric flotation acts on (using producing in electrolytic process Raw small O2、H2The floating of bubble), electric flocculation effect (since the ion that iron or aluminum metal anode dissolve further hydrolyzes, The metal hydroxides activity coagulant not soluble in water as ferrous hydroxide or aluminium hydroxide etc..This substance is solidifying in porosity Plastic structure has surface charge effect and stronger suction-operated, and it is solidifying to play obvolvent to the organic or inorganic pollutant in waste water Poly- effect, makes pollutant agglomerate and separate from waste water) etc..
The advantages of electrolysis method processing, is: using low-voltage dc power supply, not expending a large amount of chemical agents, grasps at normal temperatures and pressures Make, management is easy;If Pollutants in Wastewater concentration changes, it can guarantee water outlet by adjusting the method for voltage and current Water stabilization;Processing unit occupied area is small.The disadvantage is that: power consumption when handling a large amount of waste water, its dissolubility anode consumption is larger, The anode particle of dissolution forms flocculant as epipole, precipitates suspended solids in sewage, and a large amount of cotton-shaped suspended matters are attached to On electrode plate, cause water flow low, and can be attached to it is more and more on electrode plate, cause flocculation plant between electrode plate therefore Barrier, voltage of electric field is high, frequently alarms, and integral device is caused to deactivate.
Summary of the invention
Big to solve the consumption of dissolubility anode, a large amount of cotton-shaped suspended matters are attached on electrode plate, cause that water flow is low, frequency Between the pole plate that generates electricity the defects of flocculation plant failure, the present invention has creatively invented rotational structure type electrode: two-plate is taken suitably Spacing, to guarantee that power consumption is less and be easily installed, run and repair;Two electrode sheets are parallel to each other, and twine in the shape of a spiral It is wound in same root insulation shaft, forms the conveyor screw electrode rotated when a job.The conveyor screw electrode of rotation has electrification It is big to learn reaction effective area, large specific surface area, the high feature of electrolysis treatment effeciency;Transmission device driving electrodes axis body is with low angle Speed rotates in electrolytic cell, and the inclination pole plate of rotation promotes sediment under the action of gravity and circumferential shearing force under sliding It moves, finally falls into bottom of pond from inclination pole plate, sink to storage bucket, so that absorption, accumulation, blocking will not be generated on inclination pole plate Phenomenon.
Since inclination pole plate is rotated with shaft.By quick rotation shaft, the shear flow of strong turbulence is formed, it can be to inclining Oblique pole plate causes high speed souring, remove possible siltation, block it is very convenient.
The technical solution adopted by the present invention to solve the technical problems:
A kind of screw type rotating electrode of electrolytic sewage slot, it is characterized in that: two pieces of strips of conductive pole plates (material is iron or aluminium) Appropriate spacing is taken, two pieces of pole plates remain mutually insulated, and be parallel to each other state, raise outside with inclination on the outside of toe-in, bus The truncated cone-shaped of certain angle is mutually inclined with shaft axis, helical form, which is equably coiled, to be fixed in same root insulation shaft, One is formed by bifilar helix electrode pad+insulation shaft electrode body;One pole plate connects positive pole, another pole plate connects Power cathode;Between electrolytic cell anode and cathode, it is being parallel to each other with cathode-anode plate, mutually indepedent, insulation that 1~6 can be pressed from both sides Metal plate;Electrode body is immersed in electrolytic sewage slot, drives insulation shaft with lower angular speed in electrolytic cell by transmission device Rotation;Sewage is full of in electrolytic cell, water flow is flowed along the axial direction of shaft in a cell, electrolytic cell is flowed into from shaft one end, from The other end flows out electrolytic cell;Slot bottom has storage bucket.
The invention has the advantages that not generating the attachment of floccule, accumulation on screw type rotating electrode pole plate, blocking is existing As;Continuous inclined screw electrode electrode plate structure enhances the driving effect of sewage, can taking human as control sewage processing Reaction time, impact resistance, high treating effect, removal rate are high;The conveyor screw electrode of rotation has electrochemical reaction effective area Greatly, the advantages that large specific surface area, electrolysis treatment effeciency is high, and occupied area is small;Between electrolytic cell anode and cathode, if adding one piece Or a series of parallel metal sheet, then these metal plates towards anode surface aobvious cathodic, towards the aobvious positive polarity of cathode plane, shape At bipolar electrode, the electrolytic cell constituted is lost currents;The connection of screw type rotating electrode is simple, operational safety, Power consumption substantially reduces, to reach energy-saving effect.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is perspective view of the invention.
Fig. 2 is work longitudinal sectional view of the invention.
Fig. 3 is three line screw electrode pole plate perspective views of the invention.
In figure: 1. electrolytic cell, 2. sewage, 3. center water inlet pipe, 4. reflecting plate, 5. apopore
6. 7. effluent trough 8. of effluent weir, which precipitates dirt 9., stores 10. sludge pipe of bucket
11. 12. hollow axle of double spiral electrode plate.
Specific embodiment
In the embodiment depicted in figure 2, material be aluminium the present invention (11) cover center sewage water inlet pipe (3) outside, by bracket Support.One pole plate connects positive pole, another pole plate connects power cathode, and circuit passes through the current collection of hollow axle (12) respectively Ring power supply.Sewage (2) is entered in slot (1) from top to bottom by the water inlet pipe (3) for being located at electrolytic cell (1) center, manages lower umbrella-shaped baffle (4) waste water horizontal homogeneous is spread, after being limited by the hood-like space of umbrella shape that inclined electrode pole plate (11) are formed, sewage (2) aggregation In electrode pad (11) wedge shape under, be attached to the lower surface of electrode pad (11), coiled in the spiral slit of pole plate (11) to Upper flowing occurs a series of electrochemical reactions on electrode plate (11) and is cleaned processing, flows out, covers from pole plate (11) upper end Effluent weir (6) overflows, defeated to subsequent processing into effluent trough (7), then by apopore (5).
The sewage (2) flowed into from water inlet (3), it is very long to enter the series length that pole plate (11) gap is formed for stream respectively The narrow slot of spiral, curved siding limit the direction of motion of fluid, and the moving particle with different component velocities is in each side Siding is hit upwards.Since the boundary layer viscosity near solid wall surface is big, stall after moving particle collision, then collide and lose again Speed, last movement velocity are reduced to zero, exhaust energy on solid-liquid boundary, precipitate or be adhered on siding.Solid-liquid boundary Region is the main region that suspended matter forms aggregation.
On electrode solid-liquid boundary, electrolysis generates the active oxygen atom O of strong oxidizing property, or connects with the bacterium in sewage Touching eliminates the bacterium in sewage, or oxidative decomposition occurs with the organic matter in sewage, is decomposed into CO2And H2O;Lose electronics Iron or aluminium ion dissolution enter water body, further hydrolyze to form the metallic hydrogen not soluble in water such as ferrous hydroxide or aluminium hydroxide Oxide active flocculant.This substance is in porosity gel structure, has surface charge effect and stronger suction-operated, is made Flocculant is formed for epipole, obvolvent cohesion can be played to the organic or inorganic pollutant in waste water, keep the suspension in sewage solid Body object, pollutant agglomerate precipitating, thus purifying water body.
Precipitating dirt (8), radially inclined-plane glides, and direction is perpendicular with spiralling water (flow) direction always, flow dynamic It glides to heavy mud (8) and interferes very little, avoid concurrent or anisotropic flow precipitating, shadow of the flow dynamic to gravity suffered by suspended particulate It rings or interferes, thus can get comparatively ideal sedimentation effect.
Sewage stream is coiled in the spiral seam of pole plate and is flowed up, and electrochemical reaction such as shade companion, constantly occurs, spiral shell always The length for revolving pole plate is longer, and electrochemical reaction is more abundant, and the purification of sewage is more thorough.
Transmission device driving electrodes axis body (12) rotation in electrolytic cell (1) with low angular speed.The inclination pole plate of rotation (11) sediment (8) sliding under the action of gravity and circumferential shearing force is promoted to move down, finally from falling in inclination pole plate (11) Enter bottom of pond, sink to storage bucket (9), so that absorption, accumulation, clogging will not be generated in inclination pole plate (11).
Since inclination pole plate (11) is rotated with shaft (12).By quick rotation shaft (12), the outer inclination pole raised of inclination Plate (11) just flies the blade turned like high speed, forms the shear flow of strong turbulence, can cause high-speed punching to inclination pole plate (11) Brush effect, remove it is possible siltation, block it is very convenient.
Two electrode sheets, which are parallel to each other, to be spirally wrapped around in same root insulation shaft (12), and is rotated, not only It avoids the problem that cotton-shaped suspended matter adhesive electrodes (11) defect, also there is opposite increase liquid phase-electrode pad contact area, increase Mass tranfer coefficient and reaction speed promote electrochemical reaction process, improve the effect of reaction efficiency.
The motion profile of rotation electrode pole plate (11) is formed by the intracorporal all substances of space column, including hydrone, outstanding Floating object, microorganism etc. have the chance directly contacted with electrode (11) surface, sufficiently participation electrode in a rotation period (11) electrochemical action, indirect oxidation and indirect reduction are acted on (in the chemical product and water nearby generated using electrode on surface Substance chemically reacts), electric flotation effect (utilize the small O generated in electrolytic process2、H2The floating of bubble), electric flocculation make With etc., rather than the slow diffusion of object is relied solely in liquid (2) to realize;The conveyor screw (11) of rotation is to water body (2) stirring action has stronger mobility under the action of stirring between electrode zone and non-electrode region material, thus Improve mass transfer rate.Accelerate electrochemical reaction, indirect oxidation and indirect reduction reaction, the electric flocculation reaction on electrode surface Process, so have electrochemical action effective affecting acreage big, large specific surface area, the high feature for the treatment of effeciency.
Fig. 3 is three line screw electrode pole plate perspective views of the invention, and the pole plate of left and right ends connects the positive and negative anodes of power supply respectively, Metal plate folded by centre does not connect power supply.Under the induction of the two poles of the earth electric field, the plate towards anode surface aobvious cathodic, towards cathode The aobvious positive polarity in face forms bipolar electrode.The plate is not powered, but still plays electrolyzing sewage, to reach section It can effect.

Claims (1)

1. a kind of screw type rotating electrode of electrolytic sewage slot, it is characterized in that: two pieces of strips of conductive pole plates (material be iron or Aluminium) appropriate spacing is taken, two pieces of pole plates remain mutually insulated, and be parallel to each other state, are raised outside with inclination on the outside of toe-in, is female Line is mutually inclined the truncated cone-shaped of certain angle with shaft axis, and helical form, which is equably coiled, is fixed on same root insulation shaft On, one is formed by bifilar helix electrode pad+insulation shaft electrode body;One pole plate connects positive pole, another pole Plate connects power cathode;Between electrolytic cell anode and cathode, it is being parallel to each other with cathode-anode plate, mutually indepedent, exhausted that 1~6 can be pressed from both sides The metal plate of edge;Electrode body is immersed in electrolytic sewage slot, drives insulation shaft being electrolysed with lower angular speed by transmission device Rotation in slot;Sewage is full of in electrolytic cell, water flow is flowed along the axial direction of shaft in a cell, is flowed into and is electrolysed from shaft one end Slot flows out electrolytic cell from the other end;Slot bottom has storage bucket.
CN201910038612.2A 2019-01-16 2019-01-16 A kind of screw type rotating electrode of electrolytic sewage slot Pending CN109574155A (en)

Priority Applications (1)

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CN201910038612.2A CN109574155A (en) 2019-01-16 2019-01-16 A kind of screw type rotating electrode of electrolytic sewage slot

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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
CN116768351A (en) * 2023-08-23 2023-09-19 农业农村部成都沼气科学研究所 Electroactive bacteria-algae symbiotic reactor, system and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6942767B1 (en) * 2001-10-12 2005-09-13 T-Graphic, Llc Chemical reactor system
CN102284201A (en) * 2011-06-09 2011-12-21 重庆科技学院 Spiral adjustable slant board
CN107151804A (en) * 2017-05-09 2017-09-12 中国人民解放军92609部队 A kind of double spiral electrode component and the electrolytic cell with double spiral electrode component
CN207498185U (en) * 2017-12-11 2018-06-15 广东信丰达环保科技有限公司 A kind of double helix stirs electro-chemical water treatment reactor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6942767B1 (en) * 2001-10-12 2005-09-13 T-Graphic, Llc Chemical reactor system
CN102284201A (en) * 2011-06-09 2011-12-21 重庆科技学院 Spiral adjustable slant board
CN107151804A (en) * 2017-05-09 2017-09-12 中国人民解放军92609部队 A kind of double spiral electrode component and the electrolytic cell with double spiral electrode component
CN207498185U (en) * 2017-12-11 2018-06-15 广东信丰达环保科技有限公司 A kind of double helix stirs electro-chemical water treatment reactor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
梁吉艳, 中国建材工业出版社, 中国建材工业出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116768351A (en) * 2023-08-23 2023-09-19 农业农村部成都沼气科学研究所 Electroactive bacteria-algae symbiotic reactor, system and application thereof
CN116768351B (en) * 2023-08-23 2023-11-14 农业农村部成都沼气科学研究所 Electroactive bacteria-algae symbiotic reactor, system and application thereof

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Application publication date: 20190405