CN218465567U - Treatment device suitable for fine chemical wastewater - Google Patents
Treatment device suitable for fine chemical wastewater Download PDFInfo
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- CN218465567U CN218465567U CN202222851048.6U CN202222851048U CN218465567U CN 218465567 U CN218465567 U CN 218465567U CN 202222851048 U CN202222851048 U CN 202222851048U CN 218465567 U CN218465567 U CN 218465567U
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Abstract
The utility model discloses a processing apparatus suitable for meticulous chemical industry waste water, which comprises a housin, separate for electrolysis chamber and drip chamber through the baffle in the casing, be equipped with a plurality of intercommunicating pores on the baffle, upper portion is equipped with the water inlet in the side of electrolysis chamber, the inside plate electrode that is linked together with DC power supply that is equipped with of electrolysis chamber, the bottom of electrolysis chamber is equipped with aeration pipeline and back flush pipeline respectively, aeration pipeline is linked together with the outside aeration fan of electrolysis chamber, back flush pipeline and the outside backwashing water source of electrolysis chamber intercommunication, aeration pipeline and back flush pipeline's top is equipped with detachable filler orifice plate, the top of filler orifice plate is filled with the filler, the bottom of drip chamber is equipped with a plurality of "V" shape precipitation tanks that set up side by side, the top of drip chamber is equipped with scrapes the sediment machine, upper portion is equipped with the delivery port in the side of drip chamber.
Description
Technical Field
The utility model relates to a waste water treatment device especially relates to an use direct current electrolysis technique and be applicable to the processing apparatus of meticulous chemical industry waste water, belongs to environmental protection technical field.
Background
The fine chemical wastewater is from the chemical reaction process of various chemical raw materials, and not only can have the components of the chemical raw materials, but also can have the components of reaction products, so that the wastewater has complex components and more harmful substances, has difficult biodegradability, has adverse effect on microorganisms, and greatly increases the difficulty of biological treatment of the wastewater.
At present, methods for improving biodegradability of sewage include hydrolytic acidification, ozone oxidation and the like. Wherein, the hydrolytic acidification has limited effect on improving the biodegradability of the chemical wastewater which is difficult to degrade; ozone oxidation has the disadvantages of high energy consumption, complex equipment composition and high investment, so that the application degree of the ozone oxidation technology is limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a treatment device which uses direct current electrolysis technology as core and is suitable for fine chemical wastewater, aiming at the defects of the prior method for improving the biodegradability of sewage.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
the utility model provides a processing apparatus suitable for meticulous chemical industry waste water, includes the casing, separate for electrolysis chamber and drip chamber through the baffle in the casing, be equipped with a plurality of intercommunicating pores on the baffle, upper portion is equipped with the water inlet in the side of electrolysis chamber, the inside plate electrode that is linked together with DC power supply that is equipped with of electrolysis chamber, the bottom of electrolysis chamber is equipped with aeration pipeline and back flush pipeline respectively, aeration pipeline is linked together with the outside aeration fan of electrolysis chamber, the back flush pipeline communicates with the outside backwashing water source of electrolysis chamber, aeration pipeline and back flush pipeline's top are equipped with detachable filler orifice plate, the top of filler orifice plate is filled with the filler, the bottom of drip chamber is equipped with a plurality of "V" shape precipitation tanks that set up side by side, the top of drip chamber is equipped with scrapes the sediment machine, the upper portion is equipped with the delivery port in the side of drip chamber.
Preferably, the dc power supply is an adjustable dc voltage-stabilized power supply, and the electrolytic current adjusting range is as follows: 100-1500A, electrolytic voltage: 10-20V and 30-60 kW of power.
Preferably, the filler is composed of activated carbon and a semiconductor material, preferably gallium arsenide, germanium and silicon.
Preferably, the electrode plate is a stereo electrode.
Preferably, the aeration pipeline and the back washing pipeline are respectively communicated with an aeration fan and a back washing water source outside the electrolysis chamber and are combined into a pipeline inside the electrolysis chamber.
The utility model discloses the applied principle of device as follows:
the waste water flows through the electrolytic bath and is used as electrolyte, oxidation and reduction reactions respectively occur at the anode and the cathode, and harmful substances are removed. This oxidation or reduction reaction directly at the electrode is referred to as a primary reaction. Taking cyanide-containing wastewater as an example, the electrochemical oxidation process of the cyanide-containing wastewater on the surface of the anode is as follows:
CN - +2OH - -2e - →CNO - +H 2 O
2CNO - +4OH - -6e - →2CO 2 ↑+N 2 ↑+2H 2 O
after the above reaction process, cyanogen is converted into non-toxic and stable inorganic substances.
The waste water is treated by electrolysis by adopting an indirect oxidation and indirect reduction mode, namely, the products of the oxidation and the reduction of the electrodes and the harmful substances in the waste water are subjected to chemical reaction to generate precipitates insoluble in water so as to separate and remove the harmful substances.
In the electrolysis process, a large amount of hydrogen ions in the wastewater are consumed, the concentration of hydroxide ions is increased, the wastewater is transited from acidity to alkalinity, and then substances such as chromium hydroxide, ferric hydroxide and the like are generated and precipitated, and the precipitated substances are separated from water, so that the aims of removing chromium ions and purifying the wastewater are fulfilled.
Cr 3+ +3OH-→Cr(OH) 3 ↓Fe 3+ +3OH - →Fe(OH) 3 ↓
In the above reaction formula, the anode dissolution of the iron-removing anode is a primary reaction, and the other reactions are secondary reactions.
In the above electrolytic process, in addition to the wastewater treatment function of the primary reaction and the secondary reaction, hydrogen and oxygen are generated at the cathode and the anode respectively due to the function of the electrolyzed water, and the two nascent states [ H ] and [ O ] can perform chemical reduction and oxidation on pollutants in the wastewater and can generate fine bubbles, so that flocculates or oil is attached to the bubbles and floats to the liquid surface to facilitate the removal, and the method is called as electroflotation.
Further, ions dissolved in the iron or aluminum metal anode are further hydrolyzed to become a water-insoluble metal hydroxide coagulant such as ferrous hydroxide or aluminum hydroxide. The material is in a porous gel structure, has surface charge effect and strong adsorption effect, can perform cohesion and coagulation on organic or inorganic pollutants in the wastewater, and enables the pollutants to be coagulated mutually and separated from the wastewater, and the method is called electric flocculation treatment.
The treatment device removes pollutants in the wastewater by different actions in the processes of electrochemical action, indirect oxidation and indirect reduction, electroflotation, electroflocculation and the like on the surface of an electrode.
The utility model discloses the beneficial effect of device is:
(1) The hydroxyl radical generated under the action of the electric field has extremely strong oxidizing property, and the chemical reaction for oxidizing and degrading organic matters by the radical is a chain reaction, namely once the oxidizing reaction occurs, the chemical reaction can be continuously and circularly carried out, and the organic pollutants in the water can be continuously treated;
(2) Under the action of an external electric field, electron transfer and transfer exist between the electrode plate and the composite filler, the specific surface of electrification is increased, a plurality of electrified points are formed, the adsorption of pollutants with electric charges is facilitated, the destabilization effect on colloidal particle-shaped pollutants can be realized, and the adsorption capacity of the filler is improved;
(3) When adsorbing pollutants, the filler can partially oxidize and decompose organic pollutants adsorbed on the surface or inside of the filler under the action of a direct current electric field, so that the adsorption capacity of the filler is improved, and the backwashing period of active adsorption is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the device of the present invention;
1. a housing; 2. a baffle plate; 3. an electrolysis chamber; 4. a settling chamber; 5. a communicating hole; 6. a water inlet; 7. a direct current power supply; 8. an electrode plate; 9. an aeration pipeline; 10. back flushing the pipeline; 11. an aeration fan; 12. backwashing a water source; 13. a packing orifice plate; 14. a filler; 15. a settling tank; 16. a slag scraper; 17. and (7) a water outlet.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following examples, which are intended to illustrate the present invention and not to limit the scope of the present invention.
A treatment device suitable for fine chemical wastewater comprises a shell 1, the interior of the equipment shell is divided into an electrolysis chamber 3 and a settling chamber 4 by a baffle 2, the baffle is provided with a plurality of communicating holes 5, the middle upper part of the side surface of the electrolysis chamber is provided with a water inlet 6, the interior of the electrolysis chamber is provided with an electrode plate 8 communicated with a direct current power supply 7, the bottom of the electrolysis chamber is provided with an aeration pipeline 9 and a back flush pipeline 10 which are integrated, the aeration pipeline is communicated with an aeration fan 11 outside the electrolysis chamber, the back flush pipeline is communicated with a back flush water source 12 outside the electrolysis chamber, a detachable filler pore plate 13 is arranged above the aeration pipeline and the back flush pipeline, a filler 14 is filled above the filler pore plate, the bottom of the settling chamber is provided with a plurality of V-shaped settling tanks 15 which are arranged side by side, the top of the settling chamber is provided with a slag scraper 16, and the middle upper part of the side surface of the settling chamber is provided with a water outlet 17.
Preferably, the dc power supply is an adjustable dc voltage-stabilized power supply, and the electrolytic current adjusting range is as follows: 100-1500A, electrolytic voltage: 10-20V and 30-60 kW of power.
Preferably, the filler is composed of activated carbon and a semiconductor material, preferably gallium arsenide, germanium and silicon.
Preferably, the electrode plate is a stereo electrode.
The utility model discloses the actual working process of device as follows:
and (3) starting a direct current power supply, enabling the wastewater containing harmful substances to enter an electrolytic tank through a water inlet, electrolyzing the harmful substances by the electrolytic tank to convert the harmful substances into non-toxic substances, precipitate and the like, enabling the treated mixture to enter a precipitation chamber through a communicating hole, precipitating in a V-shaped precipitation tank, removing suspended matters on the upper part by a slag scraper, and discharging the wastewater after precipitation of precipitates through a water outlet.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. The utility model provides a processing apparatus suitable for meticulous chemical industry waste water, its characterized in that includes the casing, separate for electrolysis chamber and drip chamber through the baffle in the casing, be equipped with a plurality of intercommunicating pores on the baffle, the upper portion is equipped with the water inlet in the side of electrolysis chamber, the inside plate electrode that is linked together with DC power supply that is equipped with of electrolysis chamber, the bottom of electrolysis chamber is equipped with aeration pipeline and back flush pipeline respectively, aeration pipeline is linked together with the outside aeration fan of electrolysis chamber, back flush pipeline and the outside backwash water supply of electrolysis chamber communicate, aeration pipeline and back flush pipeline's top are equipped with detachable filler orifice plate, the top of filler orifice plate is filled with the filler, the bottom of drip chamber is equipped with a plurality of "V" shape precipitation tanks that set up side by side, the top of drip chamber is equipped with scrapes the sediment machine, the upper portion is equipped with the delivery port in the side of drip chamber.
2. The treatment apparatus according to claim 1, wherein the dc power supply is an adjustable dc voltage regulator, the electrolytic current regulation range is: 100-1500A, electrolytic voltage: 10-20V and 30-60 kW of power.
3. The processing apparatus according to claim 1 or 2, wherein the electrode plate is a stereoscopic electrode.
4. The treatment apparatus according to claim 1 or 2, wherein the aeration line and the backwash line are respectively communicated with an aeration fan and a backwash water source outside the electrolytic chamber and combined into one line inside the electrolytic chamber.
5. A treatment plant according to claim 3, characterized in that said aeration line and backwash line are connected to an aeration fan and a source of backwash water, respectively, outside the electrolysis chamber and merge into one line inside the electrolysis chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222851048.6U CN218465567U (en) | 2022-10-28 | 2022-10-28 | Treatment device suitable for fine chemical wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222851048.6U CN218465567U (en) | 2022-10-28 | 2022-10-28 | Treatment device suitable for fine chemical wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218465567U true CN218465567U (en) | 2023-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222851048.6U Active CN218465567U (en) | 2022-10-28 | 2022-10-28 | Treatment device suitable for fine chemical wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218465567U (en) |
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2022
- 2022-10-28 CN CN202222851048.6U patent/CN218465567U/en active Active
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