CN211035594U - Advanced oxidation advanced treatment system for printing and dyeing wastewater C.E - Google Patents
Advanced oxidation advanced treatment system for printing and dyeing wastewater C.E Download PDFInfo
- Publication number
- CN211035594U CN211035594U CN201920869573.6U CN201920869573U CN211035594U CN 211035594 U CN211035594 U CN 211035594U CN 201920869573 U CN201920869573 U CN 201920869573U CN 211035594 U CN211035594 U CN 211035594U
- Authority
- CN
- China
- Prior art keywords
- electrode
- water tank
- electrolysis bath
- outlet
- printing
- 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.)
- Active
Links
Images
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model discloses a printing and dyeing wastewater C.E advanced oxidation advanced treatment system, include: the water treatment system comprises a raw water tank, a quartz sand filter, an C.E pre-electrolytic cell, a C.E electrolytic cell, an intermediate water tank and an activated carbon filter which are sequentially communicated through a plurality of water inlet and outlet pipelines; wherein: C.E the water inlet and outlet of the pre-electrolysis bath and C.E electrolysis bath are both low in inlet and high in outlet, and the top parts of the pre-electrolysis bath and the C.E electrolysis bath are both connected with the bottom of the activated carbon absorber; C.E the electrolyzer comprises a plurality of electrode groups and electrode group supports arranged in the electrode slots, wherein the electrode slots are uniformly distributed on the electrode group supports, the electrode groups are sandwich structure components composed of two cathode plates, an anode plate and a plurality of screws, nuts and washers, and a plurality of flow guide holes are uniformly distributed on the cathode plates and the anode plates respectively. From the aspects of low energy consumption and low material consumption, the advanced treatment cost of the printing and dyeing wastewater reaching the emission standard is reduced, the recycling requirement is met, and the energy conservation, emission reduction and cyclic utilization are realized.
Description
Technical Field
The utility model belongs to the technical field of printing and dyeing wastewater treatment, concretely relates to printing and dyeing wastewater C.E advanced oxidation advanced treatment system.
Background
The printing and dyeing industry is typically a high water-consuming industry, consuming nearly billions of tons of process demineralized water each year. The printing and dyeing wastewater has complex sources and pollutant components, has the characteristics of large water quality change, high organic matter content, high chromaticity (mainly colored dye) and the like, brings great harm to human health and living environment by direct discharge, and simultaneously causes water resource waste.
At present, the advanced ozone oxidation treatment technology is a common technology for advanced treatment of printing and dyeing wastewater, the core equipment adopted by the technology is an ozone generator, the ozone generator is required to be provided with an air source system, a cooling water system and a tail gas treatment system, a catalyst is required to be added to improve the ozone utilization rate and the reaction effect, and the power consumption and the medicament loss are very large. Common methods for producing ozone are corona, electrolytic, ultraviolet, and nuclear radiation methods. Wherein, the corona method has higher equipment investment, high operating cost and large ozone output, but the concentration of the produced ozone is lower; the low ultraviolet method has high energy consumption and low concentration of generated ozone, and is not suitable for the production of a large amount of ozone; the nuclear radiation method has large investment, is unsafe and has low use frequency; the production of ozone by electrolysis mainly comprises the steps of electrolyzing air and pure water, wherein NO is generated in the process of producing ozone by electrolyzing airXThe required alternating voltage is higher, the electrolysis efficiency is low, ozone is difficult to enter water, the occupied area of equipment is large, and the use cost is extremely high; the ozone generated by the unit of electrolytic pure water has the highest efficiency, but the equipment investment is high, the ozone yield is small, and the ozone can not be applied on a large scale. The electrolysis process is to obtain ozone by taking solid noble metal polymer as electrolyte and combining a cation exchange mode in a low-pressure electrolysis mode. The widely used ozone synthesis method at present adopts a cold high-voltage corona discharge technology.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in overcoming current advanced oxidation technology electricity consumption of printing and dyeing wastewater advanced treatment ozone and medicament loss big, from low energy consumption and low material consumption angle, reduce the advanced treatment cost that printing and dyeing wastewater reaches emission standard on the one hand, satisfy recycle's requirement simultaneously, energy saving and emission reduction, cyclic utilization provides a printing and dyeing wastewater C.E advanced oxidation advanced treatment system.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model discloses an advanced oxidation advanced treatment system of printing and dyeing wastewater C.E, include:
the water treatment system comprises a raw water tank, a quartz sand filter, an C.E pre-electrolytic cell, a C.E electrolytic cell, an intermediate water tank and an activated carbon filter which are sequentially communicated through a plurality of water inlet and outlet pipelines; wherein:
the water inlet and outlet of the C.E pre-electrolysis bath and the water outlet and inlet of the C.E pre-electrolysis bath are both low in inlet and high in outlet, the tops of the water inlet and outlet are both connected with the bottom of an activated carbon absorber, and the quartz sand filter is respectively connected with the bottom of the raw water tank and the top of the C.E pre-electrolysis bath;
the top of the quartz sand filter and the top of the activated carbon filter are respectively connected with the top of the raw water tank, a lifting pump I is arranged between the raw water tank and the quartz sand filter, and the effluent of the intermediate water tank respectively flows back to the raw water tank through the quartz sand filter and the activated carbon filter through a lifting pump II to form a circulation treatment system;
the C.E electrolytic cell includes:
a plurality of electrode groups arranged in the electrode slots,
the electrode group bracket is provided with electrode slots which are uniformly distributed on the electrode group bracket;
the electrode group is a sandwich structure component which is composed of two cathode plates with an anode plate arranged inside and a plurality of screws, nuts and washers, and a plurality of flow guide holes are uniformly distributed on the cathode plate and the anode plate respectively.
In the technical scheme of the invention, on one hand, the problem of high suspended matter of the effluent of the existing process for treating printing and dyeing wastewater by using an A/A/O + sedimentation tank is solved by removing suspended matter and partial solid organic matters through a quartz sand filter; on the other hand, the effluent of the intermediate water tank flows back to the original water tank through a lifting pump II with a back flushing function through a quartz sand filter and an active carbon filter to form a circulation treatment system.
Further, the C.E pre-cell is the same structure as the C.E cell.
Further, the water outlets of the C.E pre-electrolysis bath and the C.E electrolysis bath are both provided with sampling valves.
Furthermore, the gap between the cathode plate and the anode plate in the electrode group is 1.5-2 mm.
Furthermore, the negative plate is a stainless steel negative plate and is combined by a screw, a nut and a washer which are made of stainless steel materials, the positive plate is a DSA coating titanium positive plate, the screw and the nut which are independently connected with the positive plate are made of pure titanium materials, and the negative plate and the positive plate are fixed by the combination of the screw, the nut and the washer which are made of PP materials.
The utility model discloses an among the above-mentioned printing and dyeing wastewater C.E advanced oxidation advanced treatment system, C.E electrolysis trough is by the electrode group that a plurality of "2 +1 electrodes" are constituteed, carries out electrolytic reaction in the waste water through the plate electrode under the constant current low pressure and produces a large amount of oxidants, and the principal products are ozone, hydroxyl radical and hydrogen peroxide, eliminate most difficult degradation organic matter in the printing and dyeing wastewater under these oxidant combined actions to convert part difficult degradation organic matter into biodegradable organic matter. After the macromolecular organic matters are decomposed into micromolecular organic matters, the micromolecular organic matters in the water are adsorbed by the active carbon filter, and the micromolecular organic matters are degraded under the action of microorganisms adsorbed on the active carbon. In addition, the activated carbon also has a certain enrichment effect on microorganisms, so that the biological stability of the effluent can be improved, and the final effluent water body can reach the recycling standard.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the system of the utility model prepares ozone through C.E electrolysis of the electrolytic cell to treat printing and dyeing wastewater, leads to the direct current power supply electrolytic water body (non-strong acid and strong base) below 60V, and generates a large amount of ozone (O) at the anode3) Gas and hydroxyl (OH), hydrogen peroxide (H) is generated on the cathode2O2) A large amount of micron-sized bubbles are formed, the oxygen is uniformly and stably discharged, and the oxidant generated by C.E electrolysis directly acts on the wastewater bodyIn the method, no additional catalyst is needed, the product utilization rate is improved, and the high efficiency is ensured.
2. The utility model discloses an overall structure is simple and easy, and low energy consumption and low material consumption angle are opened, reduce printing and dyeing wastewater and reach emission standard's deep treatment cost, satisfy recycle's requirement simultaneously, energy saving and emission reduction, cyclic utilization.
Drawings
FIG. 1 is a schematic structural diagram of an advanced oxidation advanced treatment system for printing and dyeing wastewater C.E according to the present invention;
FIG. 2 is a cross-sectional view of an C.E cell;
FIG. 3 is a cross-sectional view of the C.E electrolyzer baffle hole;
FIG. 4 is a cross-sectional view of an electrode slot in an C.E electrolytic cell; wherein:
1-raw water tank, 202-lift pump I, 202-lift pump II (with back washing function), 3-quartz sand filter, 4-C.E pre-electrolytic cell, 5-C.E electrolytic cell, 6-intermediate water tank, 7-activated carbon filter, 8-activated carbon absorber, 9-sampling valve;
501-electrode group, 502-electrode group bracket, 503-diversion hole, 504-electrode slot.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1-4, an advanced oxidation advanced treatment system for printing and dyeing wastewater C.E comprises: the system comprises a raw water tank 1, a quartz sand filter 3, an C.E pre-electrolysis bath 4, a C.E electrolysis bath 5, an intermediate water tank 6 and an active carbon filter 7 which are sequentially communicated through a plurality of water inlet and outlet pipelines; wherein: C.E the pre-electrolytic tank 4 and the C.E electrolytic tank 5 have both low water inlet and high water outlet, the water outlets are provided with sampling valves 9, and the tops of the sampling valves are connected with the bottom of the activated carbon adsorber 8; C.E the electrolytic bath 5 comprises several electrode sets 501 arranged in the electrode slots 504 and also comprises an electrode set bracket 502, and the electrode slots 504 are evenly distributed on the electrode set bracket 502; the electrode group 501 is a sandwich structure assembly composed of two cathode plates with an anode plate inside, and a plurality of screws, nuts and washers, and a plurality of flow guide holes 503 are uniformly distributed on the cathode plate and the anode plate respectively; the system also comprises a quartz sand filter 3 respectively connected with the bottom of the raw water tank 1 and the top of the C.E pre-electrolysis bath 4, a lifting pump I201 is arranged between the raw water tank 1 and the quartz sand filter 3, and the top of the quartz sand filter 3 and the top of the activated carbon filter 7 are respectively connected with the top of the raw water tank 1. On one hand, the problem that the suspended matters and part of solid organic matters are removed by the quartz sand filter 3, the suspended matters in the effluent of the existing process for treating the printing and dyeing wastewater in the 'A/A/O + sedimentation tank' are higher is solved; on the other hand, the effluent of the intermediate water tank 6 flows back to the raw water tank 1 through the quartz sand filter 3 by the lifting pump II 202 with the back flushing function and flows back to the raw water tank 1 by the activated carbon filter 7 to form a circulating treatment system, so that the treatment efficiency is improved, and the cost is reduced.
In some examples, the C.E pre-cell 4 is of the same construction as the C.E cell 5.
In some examples, the gap between the cathode plate and the anode plate in the electrode assembly 501 is 1.5-2 mm, the cathode plate is a stainless steel cathode plate and is combined by a stainless steel screw, a stainless steel nut and a stainless steel washer, the anode plate is a DSA coated titanium anode plate, the screw and the nut which are separately connected with the DSA coated titanium anode plate are pure titanium, and the cathode plate and the anode plate are fixed by a PP screw, a PP nut and a PP washer.
When the advanced oxidation advanced treatment system for the printing and dyeing wastewater C.E works, effluent of a sedimentation tank after biochemical treatment of the printing and dyeing wastewater enters the raw water tank 1, wastewater in the raw water tank 1 is conveyed to the quartz sand filter 3 by the lift pump I201, the wastewater from which most of suspended matters and solid organic matters are removed by the quartz sand filter 3 directly enters the C.E pre-electrolysis cell 4 for pre-electrolysis, mainly removing chroma and organic matters in the wastewater, most of the organic matters which are difficult to degrade are decomposed into the organic matters which are easy to degrade, the effluent water after the reaction in the C.E pre-electrolytic tank 4 automatically flows into the C.E electrolytic tank 5 for deep electrolysis, the chromaticity and the organic matters are further removed, and the residual organic matters which are difficult to degrade are decomposed into organic matters which are easy to degrade, and the effluent of the C.E electrolytic cell 5 is conveyed into the activated carbon filter 7 through the lifting pump II 202, so that the organic matters which are easy to degrade and generated by the decomposition of the C.E electrolytic cell 5 are mainly removed.
Example 1
C.E gas production and oxidant production testing of electrode sets in electrolysis cells.
The test conditions are that the temperature is 25 ℃, the water sample is prepared into distilled water and sulfuric acid, the volume of the water sample is 2.5L, the TDS of the water sample is 300 mg/L, and the results are shown in tables 1-3.
TABLE 1 Current, Voltage and gas flow in an electrode cell of 10 × 10cm
TABLE 2 oxidant production at different constant currents for 10 × 10cm electrode units
| Constant voltage V | Reference current/A | Yield of oxidant mg/cm2·min |
| 9 | 1.13-2.01 | 0.272-0.422 |
| 12 | 1.72-3.19 | 0.361-0.667 |
| 15 | 2.28-4.07 | 0.431-0.823 |
TABLE 3 oxidant production at different constant pressures for a 10 × 10cm electrode unit
| Constant current A | Reference voltage V | Yield of oxidant mg/cm2·min |
| 3 | 2.87-24 | 0.536-0.655 |
| 4 | 3.4-24 | 0.719-0.879 |
| 5 | 4.14-24 | 0.874-1.069 |
As can be seen from Table 1, the gas production rate is in positive correlation with the voltage increase under the condition of constant voltage, the gas production rate is obviously increased from 9V to 12V, and the increasing trend from 12V to 15V is weakened; under the condition of the same change interval of constant current, the gas production increment is relatively similar. In addition, under the constant pressure, the influence of the TDS value on the gas production is obvious, and the gas production is higher when the TDS is larger; at constant flow, there is little correlation between gas production and TDS values. Therefore, the electrode unit operating under the constant current has low requirements on the TDS of the water body and good adaptability, but the treatment effect on the high TDS water body is inferior to the effect under the condition of constant pressure.
As can be seen from the output of the oxidant in tables 2 and 3 under different constant pressure/constant current conditions, the working state of the electrode of the ozone generator can be flexibly adjusted according to the change of the concentration of the pollutants in practical application, so as to maximize the utilization efficiency of the oxidant.
The prior cold high-voltage corona discharge technology and the advanced oxidation advanced treatment system of the printing and dyeing wastewater C.E of the utility model are shown in the table 4.
TABLE 4
Example 2
The technical parameters of an ozone generator of a KCF-DT10.0 model of domestic known brand are referenced for analysis, the ozone yield of the model is 10kg/h, the installed power is 110kW, the operating power is about 110 ×.85-93.5 kW, the ozone generator can heat up in the operation process, a cooling device must be considered, the ozone generator with the ozone yield of 10kg needs to consider 100kW according to the cooling mode of a water chiller, the parameters of a refrigeration air-cooled screw type water chiller are referenced, the installation power of the water chiller is about 41.3kW, the operating power is about 41.3 ×.85-35.1 kW., in addition, a nitrogen adding device, a tail gas treatment device and the like which are matched are required, the operating power is about 17.4 KW. integrated, and every 1 manufactured product is about kgO3The power consumption (93.5+35.1+17.4)/10 is 14.6 kWh.
According to the data in the table 3, the advanced oxidation advanced treatment system of the printing and dyeing wastewater C.E of the utility model is calculated, and the depth of the advanced oxidation advanced treatment system is 10 × 10cm under the constant current of 4 amperes2The output of the oxidant of the '2 +1 electrode' unit group is about 0.005kg/h, the total output of ozone is 1kg/h under the condition of presetting 200 anode plates, and the single plate is 10 × 10cm2The "2 +1 electrode" cell group was operated at 48W, so that each time 1kgO was manufactured3The power consumption is about 200 × 48/1000-9.6 kWh.
In addition, the energy consumption comparison data of the cold high voltage corona discharge technology and the advanced oxidation advanced treatment system for the printing and dyeing wastewater C.E of the utility model are shown in table 5.
TABLE 5
Claims (5)
1. Advanced oxidation advanced treatment system of printing and dyeing wastewater C.E, its characterized in that includes:
the system comprises a raw water tank (1), a quartz sand filter (3), an C.E pre-electrolysis bath (4), a C.E electrolysis bath (5), an intermediate water tank (6) and an activated carbon filter (7) which are sequentially communicated through a plurality of water inlet and outlet pipelines; wherein:
the water inlet and outlet of the C.E pre-electrolysis bath (4) and the water outlet and inlet of the C.E electrolysis bath (5) are both in a low-inlet and high-outlet mode, the tops of the water inlet and outlet are both connected with the bottom of the activated carbon adsorber (8), and the quartz sand filter (3) is respectively connected with the bottom of the raw water tank (1) and the top of the C.E pre-electrolysis bath (4);
the top of the quartz sand filter (3) and the top of the activated carbon filter (7) are respectively connected with the top of the raw water tank (1), and a lift pump I (201) is arranged between the raw water tank (1) and the quartz sand filter (3);
the effluent of the intermediate water tank (6) flows back to the original water tank (1) through the quartz sand filter (3) and the activated carbon filter (7) respectively through a lift pump II (202) to form a circulating treatment system;
the C.E electrolytic cell (5) comprising:
a plurality of electrode groups (501) arranged in the electrode slots (504),
an electrode assembly holder (502), and the electrode slots (504) are evenly distributed on the electrode assembly holder (502);
the electrode group (501) is a sandwich structure assembly consisting of two cathode plates with an anode plate arranged inside, a plurality of screws, nuts and washers, and a plurality of flow guide holes (503) are uniformly distributed on the cathode plate and the anode plate respectively.
2. The system according to claim 1, characterized in that the C.E pre-electrolyzer (4) is structurally identical to the C.E electrolyzer (5).
3. The system according to claim 1, characterized in that the C.E pre-electrolyzer (4) and the C.E electrolyzer (5) have their water outlets provided with sampling valves (9).
4. The system of claim 1, wherein a gap between the cathode plate and the anode plate in the electrode group (501) is 1.5-2 mm.
5. The system of claim 1, wherein the cathode plate is a stainless steel cathode plate and is assembled by a screw, a nut and a washer made of stainless steel, the anode plate is a DSA coated titanium anode plate, the screw and the nut which are separately connected with the DSA coated titanium anode plate are made of pure titanium, and the cathode plate and the anode plate are fixed by a screw, a nut and a washer made of PP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920869573.6U CN211035594U (en) | 2019-06-11 | 2019-06-11 | Advanced oxidation advanced treatment system for printing and dyeing wastewater C.E |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920869573.6U CN211035594U (en) | 2019-06-11 | 2019-06-11 | Advanced oxidation advanced treatment system for printing and dyeing wastewater C.E |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211035594U true CN211035594U (en) | 2020-07-17 |
Family
ID=71567729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920869573.6U Active CN211035594U (en) | 2019-06-11 | 2019-06-11 | Advanced oxidation advanced treatment system for printing and dyeing wastewater C.E |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211035594U (en) |
-
2019
- 2019-06-11 CN CN201920869573.6U patent/CN211035594U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207645869U (en) | A kind of pharmaceutical wastewater apparatus for electrochemical treatment | |
| WO2020215846A1 (en) | Biofilm electrochemical reactor for simultaneously removing nitrate nitrogen and trace organic matters in water | |
| CN102849878B (en) | Pretreatment method for industrial wastewater of pyrethroid | |
| CN201567249U (en) | Ultrasonic electrochemical wastewater treatment device | |
| CN106927544A (en) | The method of electrocatalytic oxidation water treatment facilities and its treatment organic wastewater with difficult degradation thereby | |
| CN110066078A (en) | A kind of dyeing waste water C.E advanced oxidation advanced treatment system | |
| CN103130307A (en) | Ozone and photo-electrochemical coupled oxidation water-treatment device and method | |
| CN108147505B (en) | Device and method for producing hydrogen by coupling solar-driven wastewater treatment | |
| CN110282705A (en) | A kind of novel pipe electricity Fenton oxidation reaction unit | |
| CN211035594U (en) | Advanced oxidation advanced treatment system for printing and dyeing wastewater C.E | |
| CN102674505B (en) | Special equipment for treating organic sewage by utilizing electro-Fenton reaction | |
| CN111196619B (en) | Multistage advanced wastewater oxidation treatment equipment and process | |
| CN106966467A (en) | A kind of polynary electrochemical waste water treatment device of modularization and its method for handling waste water | |
| CN115557595B (en) | Method for biologically strengthening treatment of high-salt wastewater | |
| CN203625090U (en) | Electrocatalytic wastewater treatment system | |
| CN108502987B (en) | Rapid purification method of pharmaceutical intermediate wastewater | |
| CN206915816U (en) | The polynary electrochemical waste water treatment device of modularization | |
| CN210122499U (en) | Continuous electrocatalytic reaction system | |
| CN115259504A (en) | Sewage treatment method and device | |
| CN102086077A (en) | Pulse electrochemical process for removing ammonia-nitrogen in landfill leachate | |
| CN214457451U (en) | Integrated EC-AO-MBR water treatment equipment | |
| CN113003892A (en) | Coking wastewater treatment system and treatment process | |
| CN209815742U (en) | Electrocatalytic oxidation device for electroplating wastewater treatment | |
| CN220642834U (en) | High toxicity, degradation-resistant wastewater treatment composite set | |
| CN106745548B (en) | COD (chemical oxygen demand) reducing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |