CN2813595Y

CN2813595Y - Packed electrode sewage treatment apparatus with catalysis

Info

Publication number: CN2813595Y
Application number: CN 200520004320
Authority: CN
Inventors: 黄尚勋; 黄明科
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-15
Filing date: 2005-02-15
Publication date: 2006-09-06
Anticipated expiration: 2015-02-15

Abstract

A filling positive electrode electrochemical sewage treatment apparatus with catalysis belongs to the technical field of electrochemical sewage treatment. The apparatus is provided with a filling type positive electrode which can conveniently replenish the consumption of positive electrode materials, and meanwhile, automatic siphon water discharge can be carried out so that no contact between a conductive body of the positive electrode and sewage is ensured. An electrode process is carried out with the presence of a catalyst; thereby, the efficiency of electrochemical conversion, degradation and condensation is increased. Different catalysts can be used according to different treated objects and targets. The apparatus can realize the high efficiency degradation or structural conversion and electrolytic coagulation of organic pollutants under the action of a catalyst, therefore the effects of electrochemical treatment are enhanced. Meantime, the consumption of the positive electrode is replenished at any time so as to avoid the trouble of replacing the electrode. The apparatus is mainly used for treating all kinds of sewage.

Description

A kind of filling electrode waste disposal plant with katalysis

Technical field the utility model relates to the filling type anode electrochemical waste disposal plant that a kind of use has katalysis, belongs to the electrochemistry sewage treatment field.This device can be realized the thaumatropy of organic pollution materials in the sewage, it is transformed into is easy to biodegradable compound, realizes electrolysis-coagulation and catalyzed degradation simultaneously, can remove the organic pollutant in the decontaminated water.

Background technology is present, and known electrochemistry waste disposal plant generally uses common board-like electrode or tubular pole.Such electrolyzer generally is merely able to the lower electrolysis-coagulation of implementation efficiency, is handling high-concentration sewage, perhaps handles when containing the sewage of biodegradable organic compounds the effect that usually can not receive.Corrosion and dissolution phenomena in use can take place in electrode inevitably simultaneously.Therefore, in operational process, will inevitably run into the problem of changing electrode.Board-like electrode is changed trouble, and when changing electrode, the electrode materials waste is bigger.Based on above reason, designed this filling type anode electrochemical waste disposal plant with katalysis.

Summary of the invention is lower in order to overcome existing apparatus for electrochemical treatment efficient when the degrade organic compounds, electrode life is short and change the shortcoming of aspect such as electrode trouble, and the utility model provides a kind of filling type anode electrochemical treatment unit with katalysis.This device has can replenish the filling type anode that anode material consumes easily; Anode material can be the electro-conductive material that has adhered to catalyzer, or the electro-conductive material of non-cohesive catalyzer (add catalyzer in processed water system, catalyst recovery system is set simultaneously); Such apparatus for electrochemical treatment can be realized high-level efficiency degraded or the thaumatropy and the electrolysis-coagulation of organic pollutant under catalyst action, therefore, the effect of electrochemical treatment is improved.Simultaneously can replenish anode consumption at any time again, avoid changing the trouble of electrode.

The technical scheme that its technical problem that solves the utility model adopts is:

(1) under catalyst action, realizes electrode reaction.In the presence of catalyzer, the activation energy of many organic pollutants reduces, the easier redox reaction that occurs in electrode surface.The result of these reactions, organic structural modification is separated out easilier by biological degradation or electrolysis-coagulation.

(2) katalysis on the electrode can realize by dual mode.A kind of mode is, use the electro-conductive material of having fixed catalytic specie in the above as anode material, for example, fixed catalytic material on granular carbon or activation coke, perhaps mediate granulation and fix, use these materials then as filling type anodic electrode materials with powdered graphite and catalytic specie.Another method is that electrode itself only has electric action, and catalyzer is dispersed in by in the sewage of electrolysis treatment.Experiment shows that a kind of method in back is regulated catalyst consumption easily, and the effect of electrolysis treatment is better than a kind of method in front, just when concrete the application, and must subsidiary catalyst recovery system.

(3) on device structure, taked following measure: make tubulose or box anode casing with insulating material (for example polyvinyl chloride), anode material is filled in the anode casing the inside.The tubular anode conducting electrode that contacts closely with anode material has been installed, so that connect power supply on the top of anode casing.In electrochemical treatment process, electrode materials is because burn into dissolving or the like effect has the consumption of some amount.This Design of device can be replenished anode material at any time easily.

(4) in the apparatus for electrochemical treatment of this structure, the runner of processed sewage is designed to pass the water inlet of filling type anode, guarantees that sewage and the close of anode material contact the another one aspect on the one hand, anode is constantly washed, and can keep the reactive behavior of height.Sewage is through behind the electrode region, goes out from the upper edge overflow of cathode tube (case), drops in the electrolysis water outlet collecting zone, discharges cell body by siphon pipe.The surface-area of water outlet collection region is far longer than the summation of all cathode outlet basal areas, and siphonal diameter also is far longer than the water inlet pipe diameter.Therefore, through the sewage of electrode region, the electrolyzer that can speed away, and realize the cutout effect, reduce the leakage current loss between the electrolyzer.On the other hand, such structure design has guaranteed the contact of conductive electrode discord sewage, avoids galvanic corrosion, makes the life-span of conductive electrode to prolong greatly.

The beneficial effects of the utility model are, can improve the effect of electrochemical treatment sewage, more organic pollutant is transformed into is easy to biodegradable form, perhaps degrade, condense and separate out.Simultaneously,, after the electrode materials corrosion consumes, can be replenished easily, avoided changing the trouble of electrode or electrode materials through long-play.

Description of drawings further specifies the utility model below in conjunction with accompanying drawing.

Fig. 1 is an electrochemical appliance vertical view of the present utility model.

Fig. 2 is the A-A sectional view of electrochemical appliance.

1. anode casings among the figure, 2. electrolyzer casing, 3. sleeve cathode, 4. siphon drainage mouth, 5. sewage draining exit, 6. base insulator, 7. base, 8. water inlet pipe mouth, 9. anode stopping composition, 10. anode conducting motor, 11. blind flanges, 12. anode connection plates, 13. insulator, 14. the cathode connection plate, 15. flanges, 16. gas-liquid separators connect the mouth of pipe.

Embodiment is in Fig. 2, and anode casing (1) is tubulose or other shapes.Anode casing (1) is made by the insulating macromolecular material, is uniform-distribution with the aperture that many water supply streams pass through on every side.Anode casing (1) top is embedded with tubular anode conducting electrode (10), and enclosure interior is loaded anode stopping composition (9).All anode conducting electrodes (10) are connected on the anode connection plate (12), and are connected with power anode by wiring board.Anode connection plate (12) is fixed on electrolyzer casing (2) top cover with insulator (13).Anode casing (1) is fixed on the top board of electrolyzer casing (2) by flange (15).There is a blind flange (11) upper end of anode casing (1), opens blind flange (11) and can replenish anode stopping composition (9) easily.Sleeve cathode (3) is welded on the electrolyzer casing, forms a conductivity integral, connects power supply by cathode connection plate (14).The bottom of casing one side is provided with water inlet pipe mouth (8), and relative other one side is provided with siphon drainage mouth (4).Sewage enters electrolyzer by water inlet pipe mouth (8), flows to two zones between the electrode through anode tube, overflows from cathode tube periphery suitable for reading then.After liquid level reach a certain height in the case, automatic siphon was discharged.Siphon drainage mouth (4) can guarantee that sewage in time discharges electrolyzer, avoids anode conducting electrode (10) to contact with sewage, prevents electrode corrosion.The another one effect of siphon drainage mouth (4) is cutout, reduces the chance of electric current through the effluent stream short circuit.Sewage draining exit (5) is used for the electrode mud that accumulates in the drain tank in case of necessity, cleans electrolyzer.

The side of electrolyzer is provided with gas-liquid separator and connects the mouth of pipe (16).Gas-liquid separator connects the mouth of pipe (16) and connects gas-liquid separator, and gas that produces in the electrolysis and foam are discharged through after the gas-liquid separation.

Be short-circuited by concrete foundation for fear of each electrolyzer, between each base of electrolyzer (7) and electrolyzer casing (2), be provided with base insulator (6), so that guarantee the electric insulation between each trough.

Claims

1. filling electrode waste disposal plant with katalysis, comprise: the electrolyzer casing, be arranged at the siphon drainage mouth of the water inlet pipe mouth of electrolyzer lower box and other relatively one side, be arranged at the base of electrolyzer bottom half and the base insulator between base and the electrolyzer casing, be welded on the sleeve cathode on the electrolyzer casing, it is characterized in that also comprising: inner filling is granular, the anode casing (1) of bar-shaped or block electro-conductive material anode stopping composition, at a tubular anode conducting electrode (10) that closely contacts with the anode stopping composition of anode casing top setting-in, connect the anode connection plate (12) of anode conducting electrode (10); Described anode conducting electrode (10) connects by anode connection plate (12) power anode, described anode connection plate (12) is fixed on electrolyzer casing (2) top cover with insulator (13), and described anode casing (1) is fixed on the top board of electrolyzer casing (2) by flange (15).