CN213202767U - Electrochemistry/pyrolysis sludge cell dissolving reduction equipment - Google Patents
Electrochemistry/pyrolysis sludge cell dissolving reduction equipment Download PDFInfo
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- CN213202767U CN213202767U CN202022001810.2U CN202022001810U CN213202767U CN 213202767 U CN213202767 U CN 213202767U CN 202022001810 U CN202022001810 U CN 202022001810U CN 213202767 U CN213202767 U CN 213202767U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
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Abstract
The utility model provides a cell dissolving and reducing device for electrochemical/pyrolytic sludge, which comprises a power supply control box, an electrolysis/pyrolytic reactor and a gas separator; a plurality of independent electrolytic tanks are arranged in the electrolysis/pyrolysis reactor, each electrolytic tank is internally provided with an electrode plate, the bottom of the electrolysis/pyrolysis reactor is provided with a sludge inlet pipe, and the top of the electrolysis/pyrolysis reactor is provided with a sludge outlet pipe; the gas separator comprises a closed tank body, an inlet arranged on the upper part of the side wall of the tank body, an outlet arranged at the bottom end of the tank body and a separation baffle plate arranged in the middle of the tank body and separating the interior of the tank body into an upper cavity and a lower cavity. The utility model discloses equipment combines electrochemistry technique and pyrolysis technique, dissolves the microbial cell, has improved the utilization ratio of the effect of dissolving the cell and electric energy, and simultaneously, its gas separator can effectively guarantee the stability of equipment operation.
Description
Technical Field
The utility model relates to a sludge decrement technical field, specifically speaking relate to an electrochemistry/pyrolysis sludge lysis decrement equipment.
Background
The sludge yield is large, the disposal cost is high, and the sludge disposal is a great problem in the sewage treatment process. The pressure for reducing the subsequent treatment and disposal of the sludge is to reduce the discharge amount of the sludge from the source, so that the development of a novel sludge reduction device has great practical significance.
The sludge reduction method is widely researched by sludge lysis-recessive growth, wherein the recessive growth refers to a growth mode of microorganisms based on cell lysate of the microorganisms, namely various lysis technologies are utilized to dissolve the microorganisms to release intracellular substances, and bacteria grow by utilizing available substances released by cell lysis. The important link in this technology is lysis technology, and the main lysis methods at present include physical methods (heating, ultrasonic wave, microwave, ball milling, high-pressure homogenization and shear homogenization), chemical methods (hydrogen peroxide, ozone, chlorine dioxide, acid or alkali treatment, and the like) and biological methods (anaerobic digestion, aerobic digestion, biological enzyme methods, and the like). Chemical lysis is a method of decomposing cells by chemically oxidizing activated sludge with various oxidizing agents, and the ozone lysis method is the most studied. Physical lysis methods are by heat, ultrasound, high pressure homogenization, mechanical disruption, etc., where ultrasound is a typical physical lysis method. Biolysis is the process of using microorganisms themselves or their metabolites to enhance the breakdown of microbial cells in sludge.
Electrochemical technology is a lysis technology that has emerged in recent years, and the equipment that combines electrochemical/pyrolysis lysis technology to form has advantages such as environmental friendliness, processing equipment volume are small, gentle lysis and no secondary pollution, but, the present electrolysis lysis equipment's lysis effect and operating stability are relatively poor, can produce gas in the lysis process, lead to system's atmospheric pressure unstable, and operating effect and efficiency are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electrochemistry/pyrolysis sludge lysis decrement equipment to solve the problem that the existing equipment operation effect is relatively poor.
The utility model adopts the technical proposal that: an electrochemical/pyrolysis sludge lysis and reduction device comprises a power supply control box, an electrolysis/pyrolysis reactor and a gas separator;
a plurality of independent electrolytic tanks are arranged in the electrolysis/pyrolysis reactor, and each electrolytic tank is internally provided with an electrode plate which is connected with a power supply control box through a lead; a sludge inlet pipe is arranged at the bottom of the electrolysis/pyrolysis reactor, one end of the sludge inlet pipe is closed, the other end of the sludge inlet pipe is connected with an outlet of the gas separator, and the sludge inlet pipe is connected with each electrolytic cell through a plurality of upward branch pipes; a sludge inlet is arranged on the sludge inlet pipe between the electrolysis/pyrolysis reactor and the gas separator; a sludge outlet pipe is arranged at the top of the electrolysis/pyrolysis reactor, one end of the sludge outlet pipe is closed, the other end of the sludge outlet pipe is connected with an inlet of the gas separator, and the sludge outlet pipe is connected with each electrolytic tank through a plurality of downward branch pipes;
the gas separator comprises a closed tank body, an inlet arranged at the upper part of the side wall of the tank body, an outlet arranged at the bottom end of the tank body and a separation clapboard arranged in the middle of the tank body and used for separating the interior of the tank body into an upper cavity and a lower cavity; the separation clapboard is provided with a downcomer with a downward pipe orifice and a vent pipe with an upward pipe orifice; the inlet in the tank body is provided with a buffer baffle, the top of the tank body is provided with a pressure gauge and an exhaust pipe, the outlet at the bottom end of the tank body is connected with a three-way pipe, one output port of the three-way pipe is connected with a sludge inlet pipe of the electrolysis/pyrolysis reactor, and the other output port is used as a sludge outlet to output sludge subjected to cell dissolving treatment.
The mud inlet pipe is connected with the emptying pipe through a plurality of downward branch pipes, each branch pipe of the mud inlet pipe is provided with a control valve, and a filter screen for filtering sundries is arranged in the mud inlet pipe close to the mud inlet; and a control valve and a flowmeter are arranged at each branch pipe of the sludge outlet pipe.
The adjacent electrolytic cells of the electrolytic/pyrolysis reactor are connected through a side bypass pipe.
Control valves are arranged at the inlet and the outlet of the gas separator; and a temperature monitoring device is arranged on the side wall of the tank body of the gas separator.
The top of the gas separator is provided with a mist catcher, the mist catcher comprises a gas inlet communicated with the upper cavity of the tank body, a drying agent layer arranged above the gas inlet and a gas outlet arranged above the drying agent layer, the gas outlet is connected with the exhaust pipe, the exhaust pipe is provided with a control valve, and the tail end of the exhaust pipe is connected with a gas collecting device.
The power control box comprises a current control unit and positive and negative electrodes, the electrode plates are porous plates made of carbon materials, at least one row of positive plates and one row of negative plates are arranged in each electrolytic cell, and an insulating coating is arranged inside each electrolytic cell.
The carbon material is graphite.
The equipment integrates two lysis technologies of electrochemical oxidation lysis and pyrolysis lysis, promotes the mild lysis of sludge microorganisms to release intracellular organic matters, and simultaneously realizes the recessive growth of the microorganisms without adding chemical agents, thereby reducing the yield of sludge.
Under the condition of electric field, the strong oxidant and reducing agent produced near the electrode can chemically dissolve microbe, and at the same time, the heat produced by the special electrode can produce the effect of auxiliary microbial cell-dissolving so as to kill most of microbe, and the cell wall of the killed microbe can be opened and the cytoplasm can be released. One part of the released organic matters is directly oxidized into water and carbon dioxide by a strong oxidant in the electrolytic cell, and the rest part of the organic matters completely enters the aeration tank along with the backflow of the sludge. The killed microorganisms which flow back into the aeration tank become a nutrient source of the activated sludge in the aeration tank, and are synthesized and utilized by the microorganisms or are directly decomposed into water and carbon dioxide. Through these circulations, the sludge is treated in the treatment facility, so that the sludge yield is reduced, and the purpose of sludge reduction is achieved. Meanwhile, hydroxyl free radicals generated by electrode reaction can directly oxidize organic pollutants into final products or oxidize macromolecular organic pollutants into micromolecular organic pollutants, so that the biodegradability of the wastewater is improved.
The utility model combines the electrochemical technology and the pyrolysis technology to dissolve the microbial cells, thereby improving the effect of dissolving the cells and the utilization rate of electric energy; the electrode plate in the device is made of graphite, has good conductivity, does not dissolve out other components, and prolongs the service life of the electrode plate; the gas-liquid separator of the device can effectively ensure the stability of the operation of the device, and the gas collecting device can verify whether dangerous, flammable and explosive gases are generated after electrolysis, thereby ensuring the safety of the device.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a plan view of the electrolytic cell of the present invention.
The device comprises a power supply control box 1, an electrolysis/pyrolysis reactor 2, a gas separator 3, electrodes 4, electrodes 5, an electrolytic cell 6, a bypass pipe 7, an electrode plate 8, a lead wire 9, a sludge inlet pipe 10, a emptying pipe 11, a control valve 12, a sludge inlet 13, a sludge outlet pipe 14, a flowmeter 15, a filter screen 16, a screw 17, an inlet 18, an outlet 19, a separation baffle plate 20, a downcomer 21, a vent pipe 22, a buffer baffle plate 23, a pressure gauge 24, a mist catcher 25, an exhaust pipe 26, a temperature monitoring device 27, a drying agent layer 28 and a gas collecting device.
Detailed Description
As shown in fig. 1 and 2, the structure of the present invention includes a power control box 1, an electrolysis/pyrolysis reactor 2, and a gas separator 3.
The power supply control box 1 comprises a current control unit and positive and negative electrodes 4, three independent electrolytic tanks 5 are arranged in the electrolysis/pyrolysis reactor, insulating coatings are arranged in the electrolytic tanks 5, and the adjacent electrolytic tanks 5 are connected through bypass pipes 6 on the side surfaces. All be equipped with one row of positive plate and one row of negative plate in every electrolysis trough 5, 1~3 plate electrodes 7 can be placed according to the demand to each row of plate electrode, the terminal of plate electrode 7 passes through the wire 8 and links to each other with the positive negative electrode that power control box 1 corresponds, the mud reaction mainly takes place around the electric field that plate electrode 7 formed, plate electrode 7 is the perforated plate that the graphite material was made, mud and plate electrode area of contact have been increaseed, and there is not dissolving out of other material among the electrolytic reaction process, electrochemical property is stable, and the heat energy that plate electrode 7 produced assists the cell lysis of microbial cell, accelerate going on of reaction.
The bottom of the electrolysis/pyrolysis reactor is provided with a sludge inlet pipe 9, one end of the sludge inlet pipe 9 is closed, the other end of the sludge inlet pipe 9 is connected with an outlet 18 of the gas separator, the sludge inlet pipe 9 is connected with each electrolytic cell 5 through three upward branch pipes, and the sludge inlet pipe 9 is connected with an emptying pipe 10 through three downward branch pipes and is used for standby during equipment maintenance. And control valves 11 are arranged at the branch pipes of the sludge inlet pipe 9. A sludge inlet 12 is arranged on a sludge inlet pipe between the electrolysis/pyrolysis reactor and the gas separator, and the sludge inlet 12 is connected with a sludge regulating tank through a pipeline; a sludge outlet pipe 13 is arranged at the top of the electrolysis/pyrolysis reactor, one end of the sludge outlet pipe 13 is closed, the other end of the sludge outlet pipe 13 is connected with an inlet 17 of the gas separator, the sludge outlet pipe 13 is connected with each electrolytic cell 5 through three downward branch pipes, and each branch pipe of the sludge outlet pipe 13 is provided with a control valve 11 and a flowmeter 14; a filter screen 15 for filtering sundries is arranged in the sludge inlet pipe close to the sludge inlet 12. The sludge outlets in the three electrolytic tanks 5 and the sludge inlets thereof are arranged in a diagonal form, and the top edge of the electrolytic tank is provided with a screw 16 for hermetically connecting the cover body of the electrolysis/pyrolysis reactor with the electrolytic tank.
The gas separator comprises a closed tank body, an inlet 17 arranged at the upper part of the side wall of the tank body, an outlet 18 arranged at the bottom end of the tank body and a separation clapboard 19 arranged in the middle of the tank body and used for dividing the interior of the tank body into an upper cavity and a lower cavity; a downcomer 20 with a downward pipe orifice and a vent pipe 21 with an upward pipe orifice are arranged on the separation clapboard 19; a buffering baffle plate 22 is arranged at an inlet in the tank body, and can play a role of buffering when sludge in a sludge outlet pipe of the electrolytic tank enters the two-phase separator. The top of the tank body is provided with a pressure gauge 23, a mist catcher 24 and an exhaust pipe 25 connected with the mist catcher, an outlet 18 at the bottom end of the tank body is connected with a three-way pipe, one outlet of the three-way pipe is connected with a mud inlet pipe of the electrolysis/pyrolysis reactor, and the other outlet is connected with a biological recessive growth pool.
When the electrochemical/pyrolysis cell dissolving reactor is used, sludge circularly flows between the electrolysis/pyrolysis reactor and the gas separator, the number of the electrolytic cells can be selected according to the amount of the treated sludge, the circulation of the sludge is realized by controlling each control valve, and gas in the sludge is removed in the gas separator during the reaction process, so that the pressure in the electrolytic cells is kept stable. When the treatment is completed, the sludge may enter the next treatment unit from the outlet of the gas separator.
Claims (7)
1. An electrochemistry/pyrolysis sludge lysis decrement equipment is characterized by comprising a power supply control box, an electrolysis/pyrolysis reactor and a gas separator;
a plurality of independent electrolytic tanks are arranged in the electrolysis/pyrolysis reactor, and each electrolytic tank is internally provided with an electrode plate which is connected with a power supply control box through a lead; a sludge inlet pipe is arranged at the bottom of the electrolysis/pyrolysis reactor, one end of the sludge inlet pipe is closed, the other end of the sludge inlet pipe is connected with an outlet of the gas separator, and the sludge inlet pipe is connected with each electrolytic cell through a plurality of upward branch pipes; a sludge inlet is arranged on the sludge inlet pipe between the electrolysis/pyrolysis reactor and the gas separator; a sludge outlet pipe is arranged at the top of the electrolysis/pyrolysis reactor, one end of the sludge outlet pipe is closed, the other end of the sludge outlet pipe is connected with an inlet of the gas separator, and the sludge outlet pipe is connected with each electrolytic tank through a plurality of downward branch pipes;
the gas separator comprises a closed tank body, an inlet arranged at the upper part of the side wall of the tank body, an outlet arranged at the bottom end of the tank body and a separation clapboard arranged in the middle of the tank body and used for separating the interior of the tank body into an upper cavity and a lower cavity; the separation clapboard is provided with a downcomer with a downward pipe orifice and a vent pipe with an upward pipe orifice; the inlet in the tank body is provided with a buffer baffle, the top of the tank body is provided with a pressure gauge and an exhaust pipe, the outlet at the bottom end of the tank body is connected with a three-way pipe, one output port of the three-way pipe is connected with a sludge inlet pipe of the electrolysis/pyrolysis reactor, and the other output port is used as a sludge outlet to output sludge subjected to cell dissolving treatment.
2. The electrochemical/pyrolytic sludge lysis and reduction equipment according to claim 1, wherein the sludge inlet pipe is connected with the emptying pipe through a plurality of downward branch pipes, each branch pipe of the sludge inlet pipe is provided with a control valve, and a filter screen for filtering impurities is arranged in the sludge inlet pipe close to the sludge inlet; and a control valve and a flowmeter are arranged at each branch pipe of the sludge outlet pipe.
3. The apparatus for reducing sludge lysis of claim 1 wherein adjacent cells of the electrolysis/pyrolysis reactor are connected by a side bypass.
4. The apparatus for reducing the amount of sludge lysed by electrochemical pyrolysis as claimed in claim 1, wherein control valves are provided at both the inlet and the outlet of the gas separator; and a temperature monitoring device is arranged on the side wall of the tank body of the gas separator.
5. The electrochemical/pyrolysis sludge lysis and reduction equipment as claimed in claim 1, wherein a mist catcher is arranged at the top of the gas separator, the mist catcher comprises a gas inlet communicated with the upper cavity of the tank body, a drying agent layer arranged above the gas inlet and a gas outlet arranged above the drying agent layer, the gas outlet is connected with the exhaust pipe, the exhaust pipe is provided with a control valve, and the tail end of the exhaust pipe is connected with a gas collecting device.
6. The apparatus as claimed in claim 1, wherein the power control box comprises a current control unit and positive and negative electrodes, the electrode plates are porous plates made of carbon material, at least one row of positive electrode plates and one row of negative electrode plates are arranged in each electrolytic cell, and an insulating coating is arranged in each electrolytic cell.
7. The apparatus as claimed in claim 6, wherein the carbon material is graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022001810.2U CN213202767U (en) | 2020-09-14 | 2020-09-14 | Electrochemistry/pyrolysis sludge cell dissolving reduction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022001810.2U CN213202767U (en) | 2020-09-14 | 2020-09-14 | Electrochemistry/pyrolysis sludge cell dissolving reduction equipment |
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| Publication Number | Publication Date |
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| CN213202767U true CN213202767U (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022001810.2U Active CN213202767U (en) | 2020-09-14 | 2020-09-14 | Electrochemistry/pyrolysis sludge cell dissolving reduction equipment |
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| CN (1) | CN213202767U (en) |
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- 2020-09-14 CN CN202022001810.2U patent/CN213202767U/en active Active
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