CN111675431A - Enhanced electrochemical denitrification device for substrate sludge-based biochar electrode - Google Patents
Enhanced electrochemical denitrification device for substrate sludge-based biochar electrode Download PDFInfo
- Publication number
- CN111675431A CN111675431A CN202010547849.6A CN202010547849A CN111675431A CN 111675431 A CN111675431 A CN 111675431A CN 202010547849 A CN202010547849 A CN 202010547849A CN 111675431 A CN111675431 A CN 111675431A
- Authority
- CN
- China
- Prior art keywords
- denitrification
- fan blades
- based biochar
- rotating shaft
- honeycomb
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/005—Combined electrochemical biological processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
Abstract
The invention discloses a bottom sediment-based biochar electrode enhanced electrochemical denitrification device which comprises a denitrification cylinder body, a denitrification cylinder cover, a metal rotating shaft, fan blades and an external power supply, wherein the denitrification cylinder cover is arranged on the bottom sediment-based biochar electrode; the fan blades comprise metal sheets, honeycomb-shaped graphite plates connected to the metal sheets, and bottom sludge-based biochar which is positioned in the honeycomb of the honeycomb-shaped graphite plates and is enriched with denitrifying microorganisms. The fan blades are connected with the metal rotating shaft through metal sheets and are positioned in the denitrification cylinder; the metal rotating shaft penetrates through the denitrification cylinder cover and is connected with an external power supply, the other end of the external power supply is connected with the denitrification cylinder body, and meanwhile, the denitrification cylinder body is provided with a water inlet and a water outlet. The invention provides electrons for the denitrification process by utilizing the external power supply, has high treatment efficiency, simultaneously can push the fan blades to drive the metal rotating shaft to rotate by water flow, does not need an additional driving device, and the fan blades containing denitrifying microorganisms rotate when the equipment works, thereby increasing the contact area of the microorganisms and sewage and improving the sewage treatment efficiency.
Description
Technical Field
The invention relates to a substrate sludge-based biochar electrode enhanced electrochemical denitrification device, and belongs to the technical field of low-carbon-source sewage treatment.
Background
In sewage treatment, in a general denitrification process, organic matters are required to provide electrons for the denitrification process, and denitrification microorganisms reduce nitrate in sewage under an anoxic condition to release nitrogen or nitrous oxide. However, the sewage with low carbon source is lack of organic matters capable of providing electrons for the denitrification process, so that the denitrification process cannot be fully carried out, and the nitrate in the sewage cannot be completely degraded.
Therefore, the sewage treatment plant provides electrons for the denitrification process through an external carbon source, and the common external carbon source comprises methanol, sodium acetate, glucose and the like. But the production cost, transportation safety and the like of these substances limit the use thereof. The pH value of the sewage can be changed in the process of decomposing the external carbon source by the denitrifying microorganism, and the microorganism is adversely affected. Moreover, the amount of the external carbon source is difficult to control, and whether new contamination is generated in the process of utilizing the external carbon source by the microorganism is still to be examined. And the denitrification is carried out by utilizing the internal carbon source, the volume of the device needs to be increased, the microorganisms are in a forbidden period or a decay period of a growth curve, and the reaction efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a substrate sludge-based biochar electrode enhanced electrochemical denitrification device,
in order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the invention provides a substrate sludge-based biochar electrode enhanced electrochemical denitrification device which is characterized by comprising a denitrification cylinder body, a denitrification cylinder cover, a metal rotating shaft, fan blades and an external power supply, wherein the denitrification cylinder body is provided with a first electrode and a second electrode;
the fan blades comprise metal sheets, honeycomb-shaped graphite plates connected to the metal sheets, and bottom sludge-based biochar which is positioned in the honeycomb of the honeycomb-shaped graphite plates and is enriched with denitrifying microorganisms;
the fan blades are connected with the metal rotating shaft through metal sheets and are positioned in the denitrification cylinder; the metal rotating shaft penetrates through the denitrification cylinder cover and is connected with an external power supply, and the other end of the external power supply is connected with the denitrification cylinder body;
the denitrification cylinder body is provided with a water inlet and a water outlet.
Furthermore, the fan blades are uniformly distributed on the peripheral circular surface of the metal rotating shaft in a radial shape.
Furthermore, 8 are no less than to the flabellum, and rivers can promote the flabellum and drive the rotation of metal pivot, improve sewage treatment efficiency.
Further, the fan blades are cuboid.
Furthermore, the lowest position of the water outlet is higher than the highest position of the fan blades, so that the anoxic environment of the equipment in the denitrification cylinder during working is ensured, the fan blades are completely positioned in water during working clearance of the equipment, and the denitrifying microorganisms are always positioned in the anoxic environment.
Furthermore, the device still includes the outlet, the outlet is located denitrification barrel body below for the sewage in the evacuation denitrification barrel makes things convenient for equipment's dismantlement, washs each item work such as follow-up maintenance.
Further, the honeycomb graphite plate is connected to the metal sheet through an adhesive, and the adhesive can allow electrons to freely pass through.
Further, the device still includes the filter screen, the filter screen is located water inlet department.
Furthermore, at least 2 honeycomb graphite plates are connected on the same metal sheet.
Furthermore, the part of the denitrification barrel cover, except the part in contact with the metal rotating shaft, is coated with an insulating coating, and the part of the denitrification barrel body, except the part connected with an external power supply, is coated with an insulating coating, so that the safety of the equipment in working is improved.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a low-carbon source sewage treatment device, which utilizes an external power supply to provide electrons for a denitrification process and has high treatment efficiency; the water flow can push the fan blades to drive the metal rotating shaft to rotate, an additional driving device is not needed, and the fan blades containing denitrifying microorganisms rotate when the equipment works, so that the contact area of the microorganisms and sewage is increased, and the sewage treatment efficiency is improved; the sewage treatment device has the advantages that the sewage is efficiently treated by the sewage treatment device, the energy consumption is reduced, the cost of the external carbon source is reduced, the potential risk of secondary pollution caused by the external carbon source to the sewage is avoided, the manufacturing process is simple, and the service life is long.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a substrate sludge-based biochar electrode-enhanced electrochemical denitrification apparatus according to an embodiment of the invention;
FIG. 2 is a schematic view of a fan blade according to an embodiment of the present invention;
FIG. 3 is a schematic view of a connection structure between a metal shaft and an external power supply according to an embodiment of the present invention;
in the figure: 1. a water inlet; 2. a water outlet; 3. a water discharge opening; 4. a denitrification cylinder body; 5. a denitrification cylinder cover; 6. a metal rotating shaft; 7. a fan blade; 8. a first honeycomb graphite sheet; 9. a metal sheet; 10. a second honeycomb graphite sheet; 11. and enriching the bottom sludge-based biochar of denitrifying microorganisms.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The invention aims to solve the technical problem of providing a honeycomb substrate sludge-based biochar electrode enhanced electrochemical denitrification device aiming at the defects of the prior art. The device has the advantages of simple process, good treatment effect, low energy consumption, low manufacturing cost, easy cleaning, storage and maintenance and long service life, and is suitable for the treatment of low-carbon-source sewage.
In order to solve the technical problem, the technical scheme adopted by the invention is as follows:
a honeycomb substrate sludge-based biochar electrode enhanced electrochemical denitrification device comprises a water inlet 1, a denitrification cylinder body 4, a denitrification cylinder cover 5, a water discharge opening 3 and a water outlet 2, wherein the water inlet 1 and the water outlet 2 are connected with the denitrification cylinder body 4, and a filter screen is arranged at the water inlet 1.
There are metal pivot 6 and flabellum 7 in the inside of denitrification stack shell 4, flabellum 7 comprises sheetmetal 9 and cellular graphite board, metal pivot and flabellum are in the denitrification section of thick bamboo, sheetmetal 9 both sides are stained with first cellular graphite board 8 and second cellular graphite board 10 respectively, there is the bottom mud base biochar 11 of enrichment denitrifying microorganism to be located the honeycomb of graphite board, sheetmetal 9 and the metal pivot 6 of flabellum 7 are connected, flabellum 7 is radial evenly to be laid in the outer circumferential part of metal pivot 6, flabellum 7 is the cuboid and is no less than 8.
The part of the fan blade 7 connected with the metal rotating shaft 6 is a metal sheet 9, and the adhesive used for adhering the graphite plate and the metal sheet 9 in the fan blade 7 allows electrons to be freely transmitted.
The water flow can push the fan blades 7 to drive the metal rotating shaft 6 to rotate, so that the contact area of microorganisms and sewage is increased, and the sewage treatment efficiency is improved; meanwhile, the sewage treatment device depends on water flow, an additional driving device is not needed, and the energy consumption is reduced while the efficient sewage treatment of the equipment is ensured.
The metal rotating shaft 6 penetrates through the denitrification cylinder cover 5, and the extending part of the metal rotating shaft 6 can be externally connected with a power supply to provide electrons for the denitrification of microorganisms.
The water inlet 1 is positioned below the side of the denitrification cylinder body 4, the horizontal position of the water outlet 2 is higher than that of the fan blades 7, sewage is discharged in a overflowing mode, the oxygen-deficient condition inside the device is kept when the device works, and the denitrification microorganisms in the device can be kept in an oxygen-deficient environment in a non-working period.
The drain outlet 3 is positioned below the side of the denitrification cylinder body 4, so that sewage in the denitrification cylinder can be drained, and the equipment is convenient to disassemble, clean and perform subsequent maintenance and other work.
The denitrification barrel body 4 and the denitrification barrel cover 5 are made of metal, the denitrification barrel cover 5 is coated with an insulating coating except for a contact part connected with the metal rotating shaft 6, and the part of the outer part of the denitrification barrel body 4, except for a part reserved for being connected with an anode of an external power supply, is coated with the insulating coating, so that the safety of the equipment in working is effectively improved.
The intensified electrochemical denitrification device for the substrate sludge-based biochar electrode is simple in manufacturing process, low in manufacturing cost, convenient to operate, low in energy consumption, convenient to clean, maintain and store, long in service life of equipment, suitable for sewage treatment of low carbon sources, capable of providing electrons for a denitrification process by utilizing an external power supply and high in treatment efficiency. Meanwhile, the cost of the external carbon source is reduced, and the potential risk of secondary pollution caused by the external carbon source to the sewage is avoided.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A bottom sediment-based biochar electrode enhanced electrochemical denitrification device is characterized by comprising a denitrification cylinder body, a denitrification cylinder cover, a metal rotating shaft, fan blades and an external power supply;
the fan blades comprise metal sheets, honeycomb-shaped graphite plates connected to the metal sheets, and bottom sludge-based biochar which is positioned in the honeycomb of the honeycomb-shaped graphite plates and is enriched with denitrifying microorganisms;
the fan blades are connected with the metal rotating shaft through metal sheets and are positioned in the denitrification cylinder; the metal rotating shaft penetrates through the denitrification cylinder cover and is connected with an external power supply, and the other end of the external power supply is connected with the denitrification cylinder body;
the denitrification cylinder body is provided with a water inlet and a water outlet.
2. The device for enhanced electrochemical denitrification of substrate sludge-based biochar electrodes as claimed in claim 1, wherein the fan blades are uniformly distributed on the peripheral circular surface of the metal rotating shaft in a radial shape.
3. The device for strengthening electrochemical denitrification of the sediment-based biochar electrode as recited in claim 2, wherein the number of the fan blades is not less than 8.
4. The substrate sludge-based biochar electrode-enhanced electrochemical denitrification device according to any one of claims 1 to 3, wherein the fan blades are cuboid.
5. The device for enhanced electrochemical denitrification of the substrate sludge-based biochar electrode as recited in claim 1, wherein the lowest position of the water outlet is higher than the highest position of the fan blades.
6. The substrate sludge-based biochar electrode-enhanced electrochemical denitrification device according to claim 1, further comprising a water drainage port, wherein the water drainage port is positioned below the denitrification barrel body and used for draining sewage in the denitrification barrel.
7. The substrate sludge-based biochar electrode enhanced electrochemical denitrification apparatus as claimed in claim 1, wherein the honeycomb graphite plate is connected to the metal sheet through an adhesive, and the adhesive allows electrons to freely pass through.
8. The device for strengthening electrochemical denitrification of the substrate sludge-based biochar electrode according to claim 1, further comprising a filter screen, wherein the filter screen is positioned at the water inlet.
9. The substrate sludge-based biochar electrode enhanced electrochemical denitrification device according to claim 1, wherein at least 2 honeycomb graphite plates are connected to the same metal sheet.
10. The substrate sludge-based biochar electrode enhanced electrochemical denitrification device as claimed in claim 1, wherein the part of the denitrification barrel cover except the part in contact with the metal rotating shaft is coated with an insulating coating, and the part of the denitrification barrel body except the part connected with an external power supply is coated with an insulating coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547849.6A CN111675431A (en) | 2020-06-16 | 2020-06-16 | Enhanced electrochemical denitrification device for substrate sludge-based biochar electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547849.6A CN111675431A (en) | 2020-06-16 | 2020-06-16 | Enhanced electrochemical denitrification device for substrate sludge-based biochar electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111675431A true CN111675431A (en) | 2020-09-18 |
Family
ID=72436415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010547849.6A Pending CN111675431A (en) | 2020-06-16 | 2020-06-16 | Enhanced electrochemical denitrification device for substrate sludge-based biochar electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111675431A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248005A (en) * | 2021-04-25 | 2021-08-13 | 河海大学 | Method and device for enhancing denitrifying bacteria active cell by using alternating micro-electric field |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11290890A (en) * | 1998-04-08 | 1999-10-26 | Mitsubishi Heavy Ind Ltd | Method for denitrification treatment of contaminated water |
| CN104310581A (en) * | 2014-10-29 | 2015-01-28 | 湖南大学 | Rotary electrode biomembrane reactor and method for treating oxidizing pollutants |
| CN105347464A (en) * | 2015-11-26 | 2016-02-24 | 浙江省环境监测中心 | Integrated reactor based on electrode-supergravity biological rotating discs and treatment method therefor |
| CN205151873U (en) * | 2015-11-26 | 2016-04-13 | 浙江省环境监测中心 | Integrated reactor based on electrode - hypergravity rotating biological disk |
| CN105600949A (en) * | 2016-03-16 | 2016-05-25 | 东南大学 | Water-driving electricity generating type microbial film electrochemical reactor and rural domestic sewage treatment method |
| CN105906051A (en) * | 2016-06-06 | 2016-08-31 | 山东大学 | Electrochemical microorganism autotrophic nitrogen removal sewage treatment method and system |
| CN108178284A (en) * | 2017-12-11 | 2018-06-19 | 广东信丰达环保科技有限公司 | One kind is wrapped up in around biomembrane rotary cathode sewage-treatment plant |
| CN110683640A (en) * | 2019-09-16 | 2020-01-14 | 河海大学 | Denitrifying biological rotating disk for denitrification of municipal sewage |
-
2020
- 2020-06-16 CN CN202010547849.6A patent/CN111675431A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11290890A (en) * | 1998-04-08 | 1999-10-26 | Mitsubishi Heavy Ind Ltd | Method for denitrification treatment of contaminated water |
| CN104310581A (en) * | 2014-10-29 | 2015-01-28 | 湖南大学 | Rotary electrode biomembrane reactor and method for treating oxidizing pollutants |
| CN105347464A (en) * | 2015-11-26 | 2016-02-24 | 浙江省环境监测中心 | Integrated reactor based on electrode-supergravity biological rotating discs and treatment method therefor |
| CN205151873U (en) * | 2015-11-26 | 2016-04-13 | 浙江省环境监测中心 | Integrated reactor based on electrode - hypergravity rotating biological disk |
| CN105600949A (en) * | 2016-03-16 | 2016-05-25 | 东南大学 | Water-driving electricity generating type microbial film electrochemical reactor and rural domestic sewage treatment method |
| CN105906051A (en) * | 2016-06-06 | 2016-08-31 | 山东大学 | Electrochemical microorganism autotrophic nitrogen removal sewage treatment method and system |
| CN108178284A (en) * | 2017-12-11 | 2018-06-19 | 广东信丰达环保科技有限公司 | One kind is wrapped up in around biomembrane rotary cathode sewage-treatment plant |
| CN110683640A (en) * | 2019-09-16 | 2020-01-14 | 河海大学 | Denitrifying biological rotating disk for denitrification of municipal sewage |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248005A (en) * | 2021-04-25 | 2021-08-13 | 河海大学 | Method and device for enhancing denitrifying bacteria active cell by using alternating micro-electric field |
| CN113248005B (en) * | 2021-04-25 | 2022-09-06 | 河海大学 | Method and device for enhancing denitrifying bacteria active cell by using alternating micro-electric field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110104806B (en) | Energy circulation active convection oxygenation ecological floating island | |
| CN100509638C (en) | Method for treating refractory organic wastewater by TiO2 film electrode photoelectric turnplate | |
| CN101353186B (en) | Processing method for double turntable light-sensitive cell liquid membrane reactor photocatalysis organic wastewater | |
| CN106986460B (en) | Highly integrated back-flow type bioelectrochemical wastewater treatment device and wastewater treatment method | |
| CN110683640B (en) | Denitrifying biological rotating disk for denitrification of municipal sewage | |
| CN207498184U (en) | A kind of efficient water purification reaction unit of electro-catalysis | |
| CN207498185U (en) | A kind of double helix stirs electro-chemical water treatment reactor | |
| CN110240367B (en) | Sewage treatment system and method for synchronous and efficient removal of carbon, nitrogen and phosphorus | |
| CN108178423B (en) | Cylindrical spiral electrode biomembrane organic sewage and wastewater reaction device | |
| CN205773495U (en) | A kind of photoelectrocatalysis purifies water treatment facilities | |
| CN111675431A (en) | Enhanced electrochemical denitrification device for substrate sludge-based biochar electrode | |
| CN108178284A (en) | One kind is wrapped up in around biomembrane rotary cathode sewage-treatment plant | |
| CN111186952B (en) | High-efficient light and heat evaporation concentration and electro-catalysis sewage treatment plant | |
| CN107915380A (en) | A kind of infant industry waste water treatment process and its application | |
| CN217499009U (en) | Novel MBR integration equipment | |
| CN107601788A (en) | A kind of urban sewage treating device and sewage water treatment method | |
| CN113247990B (en) | Ship ballast water treatment system based on electrocatalysis membrane distillation integrated device | |
| CN212559612U (en) | Sewage biofilm reaction system | |
| CN207498134U (en) | A kind of cylinder type electrode biomembrane reaction unit for handling organic stain disease | |
| CN207498133U (en) | A kind of rotation electrode biomembrane reaction apparatus for handling organic stain disease | |
| CN220245697U (en) | Electrocatalytic flocculation reflux bioreactor | |
| CN206069473U (en) | A kind of device of stirring-type light coordinated with plasma treating wastewater through catalysis of connected | |
| CN111675432B (en) | Flow type sediment-based biochar electrochemical denitrification filter device | |
| CN106379995B (en) | Improved A 2 O-coupled biological rotating disc denitrification dephosphorization device | |
| CN213623485U (en) | Artificial wetland plant bed device with electrolysis coupling biological support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200918 |
|
| RJ01 | Rejection of invention patent application after publication |