CN1482073A - Sewage electroosmosis method and apparatus therefor - Google Patents
Sewage electroosmosis method and apparatus therefor Download PDFInfo
- Publication number
- CN1482073A CN1482073A CNA021369410A CN02136941A CN1482073A CN 1482073 A CN1482073 A CN 1482073A CN A021369410 A CNA021369410 A CN A021369410A CN 02136941 A CN02136941 A CN 02136941A CN 1482073 A CN1482073 A CN 1482073A
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- anode
- negative electrode
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- filtering medium
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Abstract
The present invention relates to electrically penetrating sewage treating method and apparatus. The apparatus includes electrodes and filtering medium, the electrodes, including anode near the side walls of sludge processing pond and cathode near the filtering medium and inside the processing pond, form the main cavity in between; and two filters with filtering medium constitute liquid exhaust cavity in between. The apparatus of the present invention can reach relatively sludge dewatering rate at lower voltage to reduce the cost for further transportation and treatment.
Description
Technical field
The present invention relates to a kind of sewage osmosis method and device thereof, be particularly useful for environmental engineering
Technical field.
Background technology
Sewage treatment process will produce a large amount of mud, and these mud often water content can be up to more than 95%, and bulky, necessary through processed, the reduction water ratio reduces amount of sludge, thereby reduces the expense of next step transportation, processing.Existing technology generally is main also to have the scholar to use vertical electric field in recent years abroad to carry out sludge dewatering with the mechanical dehydration.But there is following problem in this method: 1, along with the carrying out of dehydration, near the mud the anode becomes dry because of dehydration, thereby causes the contact resistance between anode and the mud to increase; 2, the gas accumulation of electrode reaction generation has further increased the contact resistance between anode and the mud between anode and mud.To the later stage of electro-dewatering process, nearly all voltage all consumes on contact resistance, and dehydration is forced to stop.
Summary of the invention
The objective of the invention is to design a kind of sewage osmosis method and device thereof, reduce the contact resistance in the mud electro-dewatering process, reduce the water ratio of mud, thus the expense that reduces next step transportation, handles.
The sewage osmosis method and the device thereof of the present invention's design comprise electrode and filtration medium.Electrode comprises anode and negative electrode, and anode wherein is near a sidewall in sludge treatment pond, and negative electrode places the treating pond opposite side relative with anode, constitutes main chamber between negative electrode and the anode, negative electrode with constitute discharge opeing chamber with another relative sidewall of anode; Described filtration medium is arranged in the treating pond spoken parts in traditional opera and is close to negative electrode.
Device of the present invention can be under lower voltage, thereby reach the cost that makes higher dewatering rate reduce further transportation, processing.Under 80V voltage, sludge concentration can be brought up to 8% (removing 60% moisture) from 3% in one hour, sludge concentration can be brought up to 12% in three hours, (removing 70% moisture), current consumption 0.1 kilowatt-hour/kg of water.
Description of drawings
Fig. 1 is a device synoptic diagram of the present invention.
Among Fig. 1,1 is a sidewall, the 2nd, and anode, the 3rd, main chamber, the 4th, mud, the 5th, filtration medium, the 6th, negative electrode, the 7th, another sidewall, the 8th, discharge opeing chamber, the 9th, outlet conduit.
Embodiment
As shown in Figure 1, a kind of sewage osmosis method and device thereof, this device comprises electrode and filtration medium.Described electrode comprises anode 2 and negative electrode 6, and wherein anode 2 is near a sidewall 1 and another sidewall 7 in sludge treatment pond, and negative electrode 6 is close to filtration medium 5, constitutes main chamber between negative electrode 6 and the anode 2, constitutes the discharge opeing chamber between two filtration mediums 5.
In the device of the present invention, anode 2 is to be made by any electro-conductive materials such as graphite or metals, can be an entire plate, also can punch on the plate, also can form side by side by some straight rods, and also can be a net.Negative electrode 6 is to be made by any electro-conductive materials such as graphite or metals, can be one and be equipped with very porous plate, also can form side by side by some straight rods, and also can be a net.Filtration medium 5 can be the filter cloth of any kind of, when negative electrode is a fine mesh and can play a role in filtering the time, filtration medium 5 also can remove.Outlet conduit 9 is used for draining, also can change into pump without this pipeline water is extracted out from the discharge opeing chamber.
The working process of apparatus of the present invention is: pending mud 4 is placed main chamber 3, add the voltage of 50V to 300V between anode 2 and negative electrode 6, the water in the mud is under the effect of electrical forces, to cathode motion, pass filtration medium 5, from pipeline 9 outflows of discharge opeing cavity bottom.Also can change into pump water is extracted out from the discharge opeing chamber without this pipeline.
Claims (1)
1, a kind of sewage osmosis method and device thereof is characterized in that this device comprises electrode and filtration medium; Described electrode comprises anode and negative electrode, and anode wherein is near the two side in sludge treatment pond, and negative electrode places treating pond to be close to filtration medium, constitutes main chamber between negative electrode and the anode, constitutes the discharge opeing chamber between two filtration mediums.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021369410A CN1482073A (en) | 2002-09-12 | 2002-09-12 | Sewage electroosmosis method and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021369410A CN1482073A (en) | 2002-09-12 | 2002-09-12 | Sewage electroosmosis method and apparatus therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1482073A true CN1482073A (en) | 2004-03-17 |
Family
ID=34146760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021369410A Pending CN1482073A (en) | 2002-09-12 | 2002-09-12 | Sewage electroosmosis method and apparatus therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1482073A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805048A (en) * | 2010-03-17 | 2010-08-18 | 上海大学 | Method for efficiently treating chromium (VI) pollution of underground water |
| CN102192640A (en) * | 2011-03-01 | 2011-09-21 | 宜兴能达环保科技有限公司 | Electroosmotic dehydration method and device for material containing water |
| CN102329062A (en) * | 2011-09-08 | 2012-01-25 | 嘉兴学院 | Electroosmosis method and device for dehydrating energy-containing sludge |
| CN102674654A (en) * | 2012-05-07 | 2012-09-19 | 天津大学 | Sludge dewatering and granulating device and method with synergic effect of annular electric field and pressure |
| CN103080679A (en) * | 2010-06-22 | 2013-05-01 | 凡尔伯有限公司 | An apparatus and a method for the dehydratation treatment of waste sludge |
| CN110937768A (en) * | 2018-09-21 | 2020-03-31 | 香港科技大学 | Method for treating sludge and deodorizing method |
-
2002
- 2002-09-12 CN CNA021369410A patent/CN1482073A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805048A (en) * | 2010-03-17 | 2010-08-18 | 上海大学 | Method for efficiently treating chromium (VI) pollution of underground water |
| CN103080679A (en) * | 2010-06-22 | 2013-05-01 | 凡尔伯有限公司 | An apparatus and a method for the dehydratation treatment of waste sludge |
| CN103080679B (en) * | 2010-06-22 | 2015-11-25 | 凡尔伯有限公司 | Waste sludge dewatering processing device and processing method thereof |
| CN102192640A (en) * | 2011-03-01 | 2011-09-21 | 宜兴能达环保科技有限公司 | Electroosmotic dehydration method and device for material containing water |
| CN102329062A (en) * | 2011-09-08 | 2012-01-25 | 嘉兴学院 | Electroosmosis method and device for dehydrating energy-containing sludge |
| CN102329062B (en) * | 2011-09-08 | 2013-02-06 | 嘉兴学院 | Electroosmosis method and device for dehydrating energy-containing sludge |
| CN102674654A (en) * | 2012-05-07 | 2012-09-19 | 天津大学 | Sludge dewatering and granulating device and method with synergic effect of annular electric field and pressure |
| CN110937768A (en) * | 2018-09-21 | 2020-03-31 | 香港科技大学 | Method for treating sludge and deodorizing method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |