CN104118966B - The three-dimensional electric biological coupling water cleaning systems of a kind of air water anisotropic flow and process for purifying water - Google Patents
The three-dimensional electric biological coupling water cleaning systems of a kind of air water anisotropic flow and process for purifying water Download PDFInfo
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- CN104118966B CN104118966B CN201410313373.4A CN201410313373A CN104118966B CN 104118966 B CN104118966 B CN 104118966B CN 201410313373 A CN201410313373 A CN 201410313373A CN 104118966 B CN104118966 B CN 104118966B
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Abstract
The invention discloses the incorgruous three-dimensional flow electricity biological coupling water cleaning systems of a kind of air water and process for purifying water.The biological filter bed of material of the three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow is positioned at three dimensional particles electrode layer bottom, surrounding's connection main electrode anode of three dimensional particles electrode layer, middle connection main electrode negative electrode, catalyst particle electrode is filled between main electrode, aeration water-supplying chamber is connected to aerating apparatus, the incorgruous flowing of air water of whole system, from bottom to top, water from top to bottom for gas.Process for purifying water of the present invention, comprises the steps: that (1) former water enters distributing water room; (2) three-dimensional catalytic oxidation; (3) physical filtering, retain; (4) Aerobic biological process; (5) simultaneously, gas contacts fully with sewage from top to bottom in the biological filter bed of material, three dimensional particles electrode layer; (6) water purification is gone out.Water cleaning systems of the present invention, under the interaction of three-dimensional catalytic oxidation, physical filtering, aerobic treatment, reaches predetermined treatment effect, stable effluent quality.
Description
Technical field
The invention belongs to technical field of waste water processing, particularly relate to a kind of three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow and the process for purifying water that can be used for sewage disposal.
Background technology
Along with expanding economy, the hardly degraded organic substance contained in municipal effluent is on the increase, traditional waste water treatment process on the one hand for the purpose of organics removal and nutritive substance can not be removed completely, cause receiving water body and excess sludge to receive the pollution on ground, and then affect urban water plant source water and quality of groundwater; On the other hand, conventional coagulation, precipitation, filtration handling technology of water supply do not have obvious removal effect to quite a few material.Therefore, carry out urban sewage treatment technology research, for the discharge of control hardly degraded organic substance, avoid potential Ecological Environment Crisis to be extremely important.
Method of chemical treatment utilizes the effect of chemical reaction, transform, be separated the impurity in sewage, mainly comprise chemical reagent oxidizes method, chemical reagent Coagulation Method and electrochemical process, wherein electrochemical process has wide adaptability, convenient and flexible operation, without the need to adding redox agent, the feature such as environmentally friendly, electrochemical techniques are subject to extensive concern both domestic and external, particularly in the development of power industry, mass transfer theory, on the basis that Materials science and test apparatus improve, this technology progressively becomes a kind of and applies day by day city domestic sewage treatment technology widely, have a good application prospect.Electrochemistry essence is the inhomogeneous reaction of carrying out at electrode surface, but traditional electrochemical techniques are based on two-dimensional electrode, reactant must arrive interface could participate in reaction, common two-dimensional flat plate is not easily realized this goal, and granule electrode effectively can increase electrode surface area, promote the migration of reactant, accelerate speed of reaction. therefore, the focus of people's research in recent years starts to turn to and utilizes three dimensional particles electrode to carry out wastewater treatment.Three dimensional particles electrode is between traditional two-dimentional electrolytic tank electrode, load granular or other fragmental working electrode material, make filling work materials surface charging, become a new pole (the 3rd pole), in working electrode material surface energy generation electrochemical reaction.Be applicable to conductivity of waste water low, the slow-footed occasion of electrolytic reaction and the reaction system that speed of reaction own is low or in system, limit current density is little.
Biological process uses one of technique the most ripe in current wastewater treatment, but slow to the hazardous contaminant degradation rate of complexity, decomposes not thorough, can lose corresponding activity what is more because of poisoning.Difficult degradation macromolecule organic can be oxidized to low molecule organic matter or be mineralized into carbonic acid gas by electrochemical process quickly and efficiently, and its processing power is strong and simple to operate, but it is large to there is energy consumption, the high deficiency of working cost.How both effectively to be combined, be the problem that current water treatment field is badly in need of solving.
Summary of the invention
The object of the invention is to solve the above problems, provide the three-dimensional electric biological coupling water cleaning systems of a kind of air water anisotropic flow and process for purifying water.
For solving the problem, the present invention includes water distributing area, the three-dimensional electric biological coupling pond of anisotropic flow, aeration water-supplying chamber.
The three-dimensional electric biological coupling pond of described anisotropic flow comprises three dimensional particles electrode layer and the biological filter bed of material, three dimensional particles electrode layer is positioned at biological filter bed of material top, be communicated with main electrode anode around, middle connection main electrode negative electrode, main electrode anode and main electrode negative electrode are respectively titanium net and stainless steel, catalyst particle electrode is filled between main electrode, water after the process of three dimensional particles electrode layer enters the biological filter bed of material by plastic multi hole plate from three dimensional particles electrode layer bottom, be connected with supporting layer bottom the biological filter bed of material, supporting layer is connected with aeration water-supplying chamber by plastic multi hole plate, air water is incorgruous flowing in water cleaning systems, gas from bottom to top, water from top to bottom.
The three-dimensional electric biological coupling pond of described anisotropic flow is cylinder shape, three dimensional particles electrode layer and inhale biological filter bed of material diameter just as, aspect ratio is 3:10, loads 3-5mm zinc-aluminium waste residue base granule electrode and 3-5mm porous composite fly ash filtrate respectively.
Described aeration water-supplying chamber is provided with aeration plate, aeration tube, back flushing water inlet pipe, rising pipe, and air compressor is connected with aeration tube, and backwash pump is connected with back flushing water inlet pipe.
Adopt the three-dimensional electric biological coupling process for purifying water of a kind of air water anisotropic flow described above, comprise the steps: that (1) introduces sewage to elevated tank, enter water distributing area; (2) pass into pressurized air to aeration water-supplying chamber, air water volume ratio is 5:1-3:1; (3) sewage is through water distributing area, enters three dimensional particles electrode layer, then through the biological filter bed of material, from aeration water-supplying chamber, finally flows into water purification rising pipe discharge; (4) simultaneously, gas, by aeration water-supplying chamber, enter the biological filter bed of material, then through three dimensional particles electrode layer, the gas finally do not utilized is overflowed from water distributing area; (5) at three dimensional particles electrode layer, direct supply is connected with titanium net, stainless steel electrode respectively by anode line, cathode rays, provides 0-12V voltage, carries out electrochemical reaction; (6) run after for some time and back flushing is carried out, first air purge 3 minutes to the three-dimensional electric biological coupling water cleaning systems of anisotropic flow, then washing simultaneously and air purge 5 minutes, then wash 8 minutes.
Beneficial effect of the present invention: sewage first-selection by after Electrocatalysis Degradation, the water quality changing sewage make its more easily utilize by aerobe, thus improve the treatment effect of whole reactor.
Accompanying drawing explanation
Fig. 1 is the three-dimensional electric biological coupling water cleaning systems schema of a kind of air water anisotropic flow of the present invention, is described further in conjunction with this figure.
Accompanying drawing 1 is schematic flow sheet of the present invention.
In Fig. 1: 1 direct supply, 2 anode lines, 3 cathode rays, 4 granule electrodes, 5 filtrates, 6 plastic multi hole plates, 7 air compressor, 8 aeration plates, 9 backwashing pumps, 10 water purification rising pipes, 11 titanium nets, 12 stainless steel electrodes, 13 aeration water-supplying chamber, the 14 biological filter bed of materials, 15 three dimensional particles electrode layers, 16 elevated tanks, 17 waste pipes, 18 back flushing rising pipes, 19 back flushing water inlet pipes, 20 aeration tubes, 21 water distributing areas, 22 supporting layers.
Embodiment
Embodiment one:
Accompanying drawing is a kind of specific embodiment of the present invention, the sewage that this embodiment comprises in elevated tank 13 enters water distributing area 21 through waste pipe 17, sewage in water distributing area 21 enters three dimensional particles electrode layer 15, three dimensional particles electrode layer 15 outside is connected to direct supply 1, direct supply 1 is by anode line 2, cathode rays 3 respectively with the titanium net 11 in three dimensional particles electrode layer 15, stainless steel electrode 12 is connected, water after three dimensional particles electrode layer 15 processes enters the biological filter bed of material 14, water after the biological filter bed of material 14 processes enters aeration water-supplying chamber 13, finally from aeration water-supplying chamber 13, flow into water purification rising pipe 10 to discharge, simultaneously, air compressor 7 is inflated aeration plate 8 by aeration tube, gas is successively through aeration water-supplying chamber 13, supporting layer 22, the biological filter bed of material 14, three dimensional particles electrode layer 15, water distributing area 21, the gas finally do not utilized is overflowed from water distributing area 21.
Sewage in elevated tank 13 is entered water distributing area 21 through waste pipe 17, sewage in water distributing area 21 enters three dimensional particles electrode layer 15, inside fill out zinc-aluminium waste residue base granule electrode 4, height 300mm, three dimensional particles electrode layer 15 outside is connected to direct supply 1, direct supply 1 is by anode line 2, cathode rays 3 respectively with the titanium net 11 in three dimensional particles electrode layer 15, stainless steel electrode 12 is connected, water after three dimensional particles electrode layer 15 processes enters the biological filter bed of material 14, filtrate is porous composite fly ash filtrate 5, high 1000mm, water after the biological filter bed of material 14 processes enters aeration water-supplying chamber 13, the last water purification rising pipe that flows into from aeration water-supplying chamber 13 discharges 10, simultaneously, air compressor 7 is inflated aeration plate 8 by aeration tube, gas is successively through aeration water-supplying chamber 13, supporting layer 22, the biological filter bed of material 14, three dimensional particles electrode layer 15, water distributing area 21, the gas finally do not utilized is overflowed from water distributing area 21, when reaching predetermined head loss, back flushing is carried out to the three-dimensional electric biological coupling system of anisotropic flow, first air purge is carried out by air compressor 7, then open backwash pump 9 to pressurize and carry out air water to the three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow and combine flushing, close air compressor 7 afterwards, pressurize with backwash pump 9 again and the three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow washed, the water of back flushing is discharged through back flushing rising pipe 18.
(1) water inlet hydraulic load is 6m to adopt the three-dimensional electric biological coupling process for purifying water of above-mentioned a kind of air water anisotropic flow to comprise the steps:
3/ m
2h, enters water distributing area 21 through waste pipe; (2) pass into pressurized air to aeration water-supplying chamber 13, air compressor pressure 0.3MPa, air water volume ratio is 5:1; (3) sewage is through water distributing area 21, enter three dimensional particles electrode layer 15, again through the biological filter bed of material 14, finally from aeration water-supplying chamber 13, flow into water purification rising pipe 10 discharges (4) simultaneously, gas is by aeration water-supplying chamber 13, enter the biological filter bed of material 14, then through three dimensional particles electrode layer 15, the gas finally do not utilized is overflowed from water distributing area 21; (5) at three dimensional particles electrode layer 15, direct supply 1 is connected with titanium net 11, stainless steel electrode 12 respectively by anode line 2, cathode rays 3, provides 12V voltage, carries out electrochemical reaction; (6) run after for some time and back flushing is carried out, first air purge 3 minutes to the three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow, then washing simultaneously and air purge 5 minutes, then wash 8 minutes.
Embodiment two:
The three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow of this specific embodiment is identical with the three-dimensional electric biological coupling water cleaning systems of the air water anisotropic flow of specific embodiment one.
This process for purifying water and specific embodiment one process for purifying water are distinguished and are: the air water volume ratio of aeration is 4:1.
Embodiment three:
The three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow of this specific embodiment is identical with the three-dimensional electric biological coupling water cleaning systems of the air water anisotropic flow of specific embodiment one.
This process for purifying water and specific embodiment one process for purifying water are distinguished and are: the air water volume ratio of aeration is 3:1.
Claims (6)
1. the three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow, is characterized in that: this system by water distributing area, the three-dimensional electric biological coupling pond of anisotropic flow, aeration water-supplying chamber is formed; Three dimensional particles electrode layer (15), the biological filter bed of material (14) are established in the three-dimensional electric biological coupling pond of anisotropic flow, and three dimensional particles electrode layer (15) is positioned at the biological filter bed of material (14) top; Three dimensional particles electrode layer (15) outside is connected to direct supply (1), and direct supply (1) is connected with the titanium net (11) in three dimensional particles electrode layer (15), stainless steel electrode (12) respectively by anode line (2), cathode rays (3); Aeration water-supplying chamber (13) is connected with supporting layer (22) by plastic multi hole plate (6); Air water is incorgruous flowing in water cleaning systems, and from bottom to top, water from top to bottom, carries out back flushing to water cleaning systems after running for some time to gas.
2. the three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow as claimed in claim 1, it is characterized in that: described aeration water-supplying chamber (13) is provided with aeration plate (8), aeration tube (20), back flushing water inlet pipe (19), water purification rising pipe (10), air compressor (7) is connected with aeration tube (20), and backwash pump (9) is connected with back flushing water inlet pipe (19).
3. the three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow as claimed in claim 1, is characterized in that: three dimensional particles electrode layer (15) is placed on the biological filter bed of material (14), and its aspect ratio is for being 3:10.
4. the three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow as claimed in claim 1, is characterized in that: three dimensional particles electrode layer (15) is filled to zinc-aluminium waste residue base granule electrode (4).
5. the three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow as claimed in claim 1, it is characterized in that: the series connection of three dimensional particles electrode layer (15), the biological filter bed of material (14) is from top to bottom combined, electrocatalysis and biological action are coupling in a reactor, strengthen overall treatment effect.
6. the three-dimensional electric biological coupling water cleaning systems of air water anisotropic flow as claimed in claim 1, is characterized in that: the biological filter bed of material (14) is filled to porous composite fly ash filtrate (5).
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| CN201410313373.4A CN104118966B (en) | 2014-07-03 | 2014-07-03 | The three-dimensional electric biological coupling water cleaning systems of a kind of air water anisotropic flow and process for purifying water |
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| CN201410313373.4A CN104118966B (en) | 2014-07-03 | 2014-07-03 | The three-dimensional electric biological coupling water cleaning systems of a kind of air water anisotropic flow and process for purifying water |
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| CN105523626B (en) * | 2016-01-15 | 2018-05-22 | 济南大学 | A kind of nickel-plating waste water water cleaning systems and process for purifying water |
| CN105541034B (en) * | 2016-01-15 | 2018-07-10 | 济南大学 | A kind of galvanized liquid waste water cleaning systems and process for purifying water |
| CN105668923B (en) * | 2016-01-15 | 2018-03-23 | 济南大学 | A kind of tin plating waste water water cleaning systems and process for purifying water |
| CN111960611B (en) * | 2020-07-30 | 2021-12-21 | 山东建筑大学 | Sewage advanced treatment process based on three-dimensional porous electrode filler |
| CN113149343B (en) * | 2021-03-26 | 2022-05-17 | 北京城市排水集团有限责任公司 | Electrochemical nitrogen and phosphorus removal device and method |
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| CN100425543C (en) * | 2005-07-07 | 2008-10-15 | 天津大学 | Electric biological processing device and method for waste water containing heavy metal ion and non-degradable organism |
| CN101928066A (en) * | 2010-01-30 | 2010-12-29 | 大连理工大学 | Electrically enhanced internal anaerobic zero-valent iron reactor |
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