CN1131180C - Electrical sludge-dewatering equipment with horizontal electric field - Google Patents
Electrical sludge-dewatering equipment with horizontal electric field Download PDFInfo
- Publication number
- CN1131180C CN1131180C CN 00109626 CN00109626A CN1131180C CN 1131180 C CN1131180 C CN 1131180C CN 00109626 CN00109626 CN 00109626 CN 00109626 A CN00109626 A CN 00109626A CN 1131180 C CN1131180 C CN 1131180C
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- CN
- China
- Prior art keywords
- negative electrode
- anode
- sludge
- electric field
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005684 electric field Effects 0.000 title claims abstract description 9
- 239000010802 sludge Substances 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims description 11
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to apparatus for electrically dehydrating sludge by using a horizontal electric field, and the apparatus comprises electrodes and a filter medium, wherein the electrodes comprise a positive electrode and a negative electrode, the positive electrode is abutted on a side wall of a sludge treatment pool, the negative electrode is arranged on the opposite side in the sludge treatment pool, a main cavity chamber is formed between the negative electrode and the positive electrode, and an exhaust liquid chamber is formed between the negative electrode and the other side wall which is opposite to the positive electrode; the filter medium is arranged in the sludge treatment pool and abutted on the negative electrode. The apparatus of the present invention can reach a higher sludge dehydrating rate with a lower voltage, so the cost of transportation and treatment is further decreased.
Description
The present invention relates to a kind of mud apparatus for electrodewatering of application level electric field, belong to the environmental engineering technical field
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 also has the scholar to use vertical electric field in recent years abroad and carries out sludge dewatering generally based on 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.
The objective of the invention is to design a kind of mud apparatus for electrodewatering of application level electric field, reduce the contact resistance in the mud electro-dewatering process, obtain the lower mud of water ratio, thus the expense that reduces next step transportation, handles.
The mud apparatus for electrodewatering of the application level electric field of the present invention's design comprises 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 and is close to negative electrode.
Device of the present invention can reach higher dewatering rate under lower voltage, thereby has reduced the cost of 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.
Below in conjunction with accompanying drawing, introduce content of the present invention in detail.
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.
As shown in Figure 1: a kind of mud apparatus for electrodewatering of application level electric field, this device comprises electrode and filtration medium.Described electrode comprises anode (2) and negative electrode (6), wherein anode (2) is near a sidewall (1) in sludge treatment pond, negative electrode (6) places near another sidewall (7), constitutes main chamber between negative electrode (6) and the anode (2), and negative electrode (6) constitutes the discharge opeing chamber with sidewall (7).Filtration medium (5) is close to negative electrode (6) setting.
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 (8) 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 is placed main chamber 3, at 6 voltages that add 50V to 300V of anode 2 and negative electrode, 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 mud apparatus for electrodewatering of application level electric field is characterized in that this device comprises electrode and filtration medium; Described 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 and is close to negative electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00109626 CN1131180C (en) | 2000-06-16 | 2000-06-16 | Electrical sludge-dewatering equipment with horizontal electric field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00109626 CN1131180C (en) | 2000-06-16 | 2000-06-16 | Electrical sludge-dewatering equipment with horizontal electric field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1274686A CN1274686A (en) | 2000-11-29 |
| CN1131180C true CN1131180C (en) | 2003-12-17 |
Family
ID=4579756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00109626 Expired - Lifetime CN1131180C (en) | 2000-06-16 | 2000-06-16 | Electrical sludge-dewatering equipment with horizontal electric field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1131180C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332898C (en) * | 2004-12-02 | 2007-08-22 | 上海交通大学 | Sludge stabilizing electrochemical treating process |
| CN102503070B (en) * | 2011-11-11 | 2013-03-06 | 河海大学 | Device for reducing water ratio of sludge |
| CN103395879A (en) * | 2013-07-31 | 2013-11-20 | 无锡柯马机械有限公司 | Aactive sludge electrocatalysis device |
| CN103992017A (en) * | 2014-03-13 | 2014-08-20 | 浙江海洋学院 | Sludge dewatering treatment method |
| CN104402184A (en) * | 2014-11-28 | 2015-03-11 | 宁波圆周率环境科技有限公司 | Multi-stage oxidization treatment technology for sludge |
| CN106044967B (en) * | 2016-06-03 | 2019-03-01 | 北京林业大学 | Synchronous desalination removes the sewage water treatment method and device of organic matter |
| CN106242242A (en) * | 2016-09-23 | 2016-12-21 | 北京林业大学 | A kind of manganese salt sludge conditioner and mud dewatering method |
-
2000
- 2000-06-16 CN CN 00109626 patent/CN1131180C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1274686A (en) | 2000-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20031217 |