CN107140716B - Equipment and method for treating dye wastewater by electrochemical-adsorption composite process - Google Patents
Equipment and method for treating dye wastewater by electrochemical-adsorption composite process Download PDFInfo
- Publication number
- CN107140716B CN107140716B CN201710479443.7A CN201710479443A CN107140716B CN 107140716 B CN107140716 B CN 107140716B CN 201710479443 A CN201710479443 A CN 201710479443A CN 107140716 B CN107140716 B CN 107140716B
- Authority
- CN
- China
- Prior art keywords
- graphite plate
- dye wastewater
- wastewater
- tank body
- electrochemical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 73
- 230000008569 process Effects 0.000 title claims abstract description 44
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 34
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 125
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 83
- 239000010439 graphite Substances 0.000 claims abstract description 83
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 31
- 239000010936 titanium Substances 0.000 claims abstract description 31
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 24
- 239000011780 sodium chloride Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 83
- 229910001868 water Inorganic materials 0.000 claims description 68
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 60
- 238000006243 chemical reaction Methods 0.000 claims description 47
- XPPWAISRWKKERW-UHFFFAOYSA-N copper palladium Chemical compound [Cu].[Pd] XPPWAISRWKKERW-UHFFFAOYSA-N 0.000 claims description 32
- TTXWERZRUCSUED-UHFFFAOYSA-N [Ru].[Sn] Chemical compound [Ru].[Sn] TTXWERZRUCSUED-UHFFFAOYSA-N 0.000 claims description 28
- 239000011248 coating agent Substances 0.000 claims description 25
- 238000000576 coating method Methods 0.000 claims description 25
- 230000002572 peristaltic effect Effects 0.000 claims description 21
- 239000000243 solution Substances 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 230000001965 increasing effect Effects 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 239000012153 distilled water Substances 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 6
- JKYKXTRKURYNGW-UHFFFAOYSA-N 3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C(O)=C(O)C(S(O)(=O)=O)=C2 JKYKXTRKURYNGW-UHFFFAOYSA-N 0.000 claims description 5
- 101150003085 Pdcl gene Proteins 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 5
- 239000001509 sodium citrate Substances 0.000 claims description 5
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 claims 1
- MPTQRFCYZCXJFQ-UHFFFAOYSA-L copper(II) chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Cu+2] MPTQRFCYZCXJFQ-UHFFFAOYSA-L 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052802 copper Inorganic materials 0.000 abstract description 9
- 239000010949 copper Substances 0.000 abstract description 9
- 229910052763 palladium Inorganic materials 0.000 abstract description 9
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052707 ruthenium Inorganic materials 0.000 abstract description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052718 tin Inorganic materials 0.000 abstract description 2
- OKTJSMMVPCPJKN-YPZZEJLDSA-N carbon-10 atom Chemical class [10C] OKTJSMMVPCPJKN-YPZZEJLDSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 229910021592 Copper(II) chloride Inorganic materials 0.000 description 4
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 241000287828 Gallus gallus Species 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- JPRQEIKKWFCTMS-UHFFFAOYSA-N [Ti].[Ru].[Sn] Chemical compound [Ti].[Ru].[Sn] JPRQEIKKWFCTMS-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 description 1
- 125000002340 chlorooxy group Chemical group ClO[*] 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
- C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
- C02F2001/46138—Electrodes comprising a substrate and a coating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4616—Power supply
- C02F2201/4617—DC only
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Electrochemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention provides equipment and a treatment method for treating dye wastewater by an electrochemical-adsorption composite process, wherein a main electrode plate of a reactor consists of a graphite plate cathode loaded with metal copper and palladium and a titanium anode coated with ruthenium, titanium and tin, and anhydrous NaCl and powdered activated carbon are filled between the main electrode plates.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to equipment and a method for treating dye wastewater by an electrochemical-adsorption composite process.
Background
Along with the rapid development of the dye production and printing and dyeing industry in China, the discharge amount of the waste water in the dye industry is also increased rapidly, and according to data provided by relevant departments, about 1.8 memory cubic meters of the waste water in the dye industry is discharged into the environment every year in China. The dye wastewater has high organic matter content, large chroma, complex components and wide PH variation range. Because the production varieties of the dye are various and develop towards the photolysis resistance, oxidation resistance and biological oxidation resistance, the treatment difficulty of the dye wastewater is further increased. The dye wastewater contains a large amount of organic pollutants, and after being discharged into a water body, dissolved oxygen in the water body is consumed, so that the balance of a water body ecological system is damaged, and the survival of fishes and other aquatic organisms is seriously threatened. In view of the above, the treatment of dye wastewater has become the focus of domestic and foreign research.
The traditional method for treating the dye wastewater comprises a physical method, a chemical method, a biological method and the like. The methods have certain effect on the treatment of the dye wastewater and have defects at the same time.
In order to find a method for solving the problem of environmental pollution caused by dye wastewater more effectively and economically, people adopt different methods and technologies to try various treatment approaches to the dye wastewater. The electrochemical water treatment technology attracts a plurality of researchers at home and abroad, and has the advantages of simple equipment, convenient operation, small secondary pollution, wide application range and the like.
Therefore, in consideration of the superiority and development trend of the composite process, the invention takes the rubigins S simulated dye wastewater as a research object, and adopts a treatment method combining an electrochemical technology and an adsorption technology to deeply research the treatment of the dye wastewater by the electrochemical-adsorption synergistic composite process.
Disclosure of Invention
The technical problem to be solved is as follows: the application mainly provides equipment and a treatment method for treating dye wastewater by an electrochemical-adsorption composite process, and solves the technical problems that carbon nitride is a powder material, stirring is needed in the use process, and the carbon nitride is not easy to recover after being used in the prior art.
The technical scheme is as follows: an apparatus for treating dye wastewater by an electrochemical-adsorption composite process comprises a direct current stabilized power supply, a graphite plate cathode loaded with metallic copper palladium, a ruthenium-tin coating titanium anode, a magnetic stirrer, a wastewater storage tank, a magnetic stirrer, a peristaltic pump, an overflow port, a water inlet valve, a water outlet valve and powdered activated carbon, wherein the graphite plate cathode loaded with metallic copper palladium and the ruthenium-tin coating titanium anode are respectively arranged at two ends of a tank body of the apparatus for treating dye wastewater by the electrochemical-adsorption composite process, the graphite plate cathode loaded with metallic copper palladium is connected with the negative electrode of the direct current stabilized power supply through a lead, the ruthenium-tin coating titanium anode is connected with the positive electrode of the direct current stabilized power supply through a lead, powdered activated carbon and anhydrous sodium chloride are filled between the graphite plate cathode loaded with metallic copper palladium and the ruthenium-tin coating titanium anode, the overflow port is arranged below a top cover of the tank body, the top cover of the tank body, the top cover of the tank body is provided with a group of openings, the bottom of the tank body is provided with a magnetic stirrer, the tank body is internally provided with a magnetic stirrer, the water inlet valve and the water outlet valve are respectively arranged at two sides of the tank body, the wastewater storage tank is connected with the water inlet valve through a peristaltic pump, when wastewater completely reacts in the tank body, the wastewater flows out from the water outlet valve, and when the wastewater in the tank body is excessive, the excessive wastewater overflows from the overflow port.
As a preferred technical scheme of the invention: the loadPreparing a graphite plate cathode of metal copper palladium by an ethylene glycol reduction method, taking a graphite plate electrode, polishing the surface of the graphite plate electrode by using abrasive paper to be smooth and flat, sequentially putting the graphite plate electrode into a NaOH solution and a hydrochloric acid solution for soaking, washing and drying to prepare a prepared graphite plate electrode, putting the prepared graphite plate electrode into an ethylene glycol solution, and carrying out ultrasonic treatment for 1 h; 76mg of PdCl were weighed out272mg of CuCl2 .2H2O and 240mg of sodium citrate are put into a 250mL round bottom flask, 50mL of ethylene glycol EG is added, stirring is carried out for 1h at room temperature, then the graphite plate electrode soaked in the ethylene glycol is placed in the flask, 5wt% of KOH/EG solution is used for adjusting the pH of the reaction mixed solution to 9.5-0-10.5, stirring is carried out for 30min at room temperature, then the reaction mixed solution is put into an oil bath and reacts for 6h at 160 ℃, after the reaction is finished, the graphite plate electrode is taken out, the graphite plate electrode is washed by deionized water, and vacuum drying is carried out, thus obtaining the graphite plate cathode loaded with metal copper and palladium.
As a preferred technical scheme of the invention: the tank body of the equipment for treating the dye wastewater by the electrochemical-adsorption composite process is a cuboid, and the size of the tank body is 15cm multiplied by 10cm multiplied by 12 cm.
As a preferred technical scheme of the invention: the sizes of the graphite plate cathode loaded with metal copper palladium and the ruthenium tin coating titanium anode are both 10cm multiplied by 8cm multiplied by 0.5cm, and the distance between the two electrodes is 3.0-5.0 cm.
As a preferred technical scheme of the invention: the particle size of the powdered activated carbon particles is 0.15-2.00 mm.
As a preferred technical scheme of the invention: the overflow port is 1-5cm lower than the top end of the tank body.
The treatment method of the equipment for treating the dye wastewater by the electrochemical-adsorption composite process comprises the following steps:
the first step is as follows: boiling powdered activated carbon in distilled water for 2-4h, washing with distilled water for 5-10min, drying at 120 ℃ for 24-48h, taking out, placing between a graphite plate cathode loaded with metal copper and palladium and a ruthenium-tin coating titanium anode, and simultaneously adding 20g/L anhydrous sodium chloride;
the second step is that: turning on a direct-current power supply, adjusting the voltage range to be less than or equal to 9V, controlling the reaction intermittent time to be less than or equal to 30min, turning on a water inlet valve, starting a peristaltic pump, and enabling dye wastewater to enter a reactor from a wastewater storage tank, wherein the dye wastewater adopts alizarin S dye wastewater simulating wastewater, the initial concentration is 1000mg/L, COD =600mg/L, and the chromaticity is 4-6;
step three, effluent detection: closing the water inlet valve after reaction, opening the water outlet valve, allowing the treated dye wastewater to flow out of the water outlet valve, and discharging the treated dye wastewater after detecting that COD and chroma in the treated dye wastewater reach Integrated wastewater discharge Standard (GB 8978-1996);
the fourth step: when the concentration of the dye wastewater is increased, the concentration of the treated effluent water is increased and cannot reach the integrated wastewater discharge standard (GB 8978-1996), a water inlet valve and a peristaltic pump are closed, the voltage and the reaction intermittent time are readjusted until the effluent water reaches the standard, and then the normal treatment process is recovered.
As a preferred technical scheme of the invention: the four-step readjustment voltage and reaction pause time adjusting method comprises the steps of sequentially increasing the voltages by 1V, 3V, 5V, 7V and 9V, and adjusting the reaction pause times by 5min, 10min, 15min, 20min, 25min and 30 min.
Has the advantages that: compared with the prior art, the equipment and the treatment method for treating the dye wastewater by the electrochemical-adsorption composite process have the following technical effects:
1. aiming at the improvement of the traditional three-dimensional electrode, a novel electrode pair is introduced, a graphite plate loaded with metal copper palladium and a ruthenium tin titanium anode are loaded, and powdered activated carbon and anhydrous NaCl are added between the electrodes to serve as electrolytes, so that a dye wastewater treatment device and process which are high in current efficiency, strong in oxidation capacity, low in energy consumption, good in COD removal and decoloration effects, convenient to operate and wide in application range are formed, and the dye wastewater treatment device and process have positive significance for treating dye wastewater;
2. a new electrode pair is adopted, graphite plate loaded metal copper palladium is used as a cathode, and a titanium anode with a ruthenium-tin coating is adopted. Then the electrode and powdered activated carbon in the reactor form a three-dimensional electrode reactor, thereby greatly improving the specific surface area of the electrode and enhancing the electrolysis effect;
3. an electrochemical-adsorption composite process is adopted, and a treatment process with electrochemistry as the main part and an adsorption method as the auxiliary part is skillfully combined, so that time and energy are saved, and the effect of treating the dye wastewater is greatly improved;
4. powdered activated carbon is used as filler, which can be used as electrolyte and adsorbent. The top cover of the reactor can be uncovered, and a hole is formed in the top cover, so that the assembly of the reactor and the replacement of the filler are facilitated, and the gas is conveniently discharged in the reaction process;
5. by utilizing a series of electrochemical reactions of electrolyte sodium chloride, intermediates such as HClO, OCl, HClO3 and the like with extremely strong oxidizability can be generated, and organic matters are subjected to oxidative degradation, so that the chromaticity removal effect on dye wastewater is very good;
6. the two ends of the reactor are connected with a power supply, the activated carbon becomes charged particles in an electric field and can serve as a carrier for electrochemical oxidation reduction, organic molecules which are difficult to degrade complete the process of getting lost charges on the carrier, the molecules are broken and decomposed into small molecules, and part of the molecules can be directly oxidized and decomposed into H2O and CO2The powdery active carbon serves as a third electrode in the electrochemical-adsorption composite process, so that the specific surface area of the electrode is greatly improved, and the electrolytic effect is enhanced;
7. after the raw wastewater (200 mg/L, 600mg/L and 1000 mg/L) with different concentrations is treated, the removal rates of COD and chromaticity in the wastewater reach 85-90%, which shows that the process has very high efficiency on the treatment effect of the dye wastewater.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a reactor for treating dye wastewater by the electrochemical-adsorption composite process.
Description of reference numerals: 1. the device comprises a direct current stabilized power supply, 2, a graphite plate cathode loaded with metal copper palladium, 3, a ruthenium-tin coating titanium anode, 4, a magnetic stirrer, 5, a wastewater storage tank, 6, a magnetic stirrer, 7, a peristaltic pump, 8, an overflow port, 9-1 water outlet valve, 9-2 water inlet valve, 10 and powdered activated carbon.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings: in the examples, ruthenium-tin coated titanium anodes were purchased from Shanxi Bao chicken Medium-color Special metals, LLC.
Example 1
As shown in figure 1, the device for treating dye wastewater by an electrochemical-adsorption composite process comprises a direct current stabilized power supply 1, a graphite plate cathode 2 loaded with metal copper and palladium, a ruthenium-tin coated titanium anode 3, a magnetic stirrer 4, a wastewater storage tank 5, a magnetic stirrer 6, a peristaltic pump 7, an overflow port 8, a water outlet valve 9-1, a water inlet valve 9-2 and powdered activated carbon 10, wherein the graphite plate cathode 2 loaded with metal copper and palladium is prepared by an ethylene glycol reduction method, a graphite plate electrode is taken, the surface of the graphite plate electrode is polished to be smooth and flat by abrasive paper, the graphite plate electrode is sequentially soaked in NaOH solution and hydrochloric acid solution, washed and dried to prepare a prepared graphite plate electrode, and the prepared graphite plate electrode is placed in the ethylene glycol solution and subjected to ultrasonic treatment for 1 hour; 76mg of PdCl were weighed out272mg of CuCl2 .2H2O and 240mg of sodium citrate are put in a 250mL round bottom flask, 50mL of ethylene glycol EG is added, stirring is carried out for 1h at room temperature, then the graphite plate electrode soaked in the ethylene glycol is placed in the flask, 5wt% of KOH/EG solution is used for adjusting the pH of reaction mixed solution to 9.5-0-10.5, stirring is carried out for 30min at room temperature continuously, then the reaction mixed solution is placed in an oil bath, reaction is carried out for 6h at 160 ℃, after the reaction is finished, the graphite plate electrode is taken out, the graphite plate electrode is washed by deionized water and dried in vacuum, a graphite plate cathode loaded with metallic copper and palladium is obtained, a tank body of equipment for treating dye wastewater by an electrochemical-adsorption composite process is a cuboid anode with the size of 15cm × 10cm × 12cm, the graphite plate cathode 2 loaded with the metallic copper and palladium and the ruthenium tin-coated titanium anode 3 are respectively arranged at two ends of the equipment for treating the dye wastewater by the electrochemical-adsorption composite process, the graphite plate cathode 2 and the tin-coated titanium anode with the ruthenium are respectively arranged between 10cm × 8cm × 0.5cm ruthenium and the anode of a stabilized voltage power supply, the graphite plate anode is connected with the cathode of the anode loaded metallic copper-ruthenium-tin-supported by a stabilized voltage power supply direct current lead wire with the cathode of which is a cathode of 10.8 mm, the graphite plate anode of the graphite plate anode with the cathode of the anode of the cathode of the anode ofUnder the cover. The overflow port 8 is 1cm lower than the top end of the tank body, the top cover of the tank body is movably connected with the tank body, the top cover is provided with a group of openings, the bottom of the tank body is provided with a magnetic stirrer 4, the tank body is internally provided with a magnetic stirrer 6, the water outlet valve and the water inlet valve 9-2 are respectively arranged at two sides of the tank body, the wastewater storage tank 5 is connected with the water inlet valve 9-2 through a peristaltic pump 7, when the wastewater completely reacts in the tank body, the wastewater flows out through the water outlet valve 9-1, and when the wastewater in the tank body is excessive.
The treatment method specifically comprises the following steps:
the first step is as follows: the powdery active carbon 10 is put into distilled water to be boiled for 2h, then is washed by distilled water for 5min to remove water-soluble and volatile substances in the active carbon, is dried for 24h at 120 ℃ after being washed, is taken out, is put between a graphite plate cathode 2 loaded with metal copper palladium and a ruthenium tin coating titanium anode 3, the distance between two electrode plates is 3.0cm, and 20g/L NaCl is added between the electrode plates.
The second step is that: turning on a direct-current power supply 1, adjusting voltage to 5V, controlling reaction pause time to be 5min, turning on a water inlet valve 9-2, turning on a peristaltic pump 7, and enabling dye wastewater to enter a reactor from a wastewater storage tank 5, wherein the dye wastewater is alizarin S dye wastewater simulating wastewater, the initial concentration is 200mg/L, COD =600mg/L, and the chromaticity is 4.
Step three, effluent detection: after the reaction, closing the water inlet valve 9-2, opening the water outlet valve 9-1, allowing the treated dye wastewater to flow out of the water outlet valve 9-1, detecting COD and chroma in the treated dye wastewater, and after the reaction is carried out for 15 minutes, removing rates of the COD and the chroma of the treated original wastewater respectively reach 98% and 90%, so that obvious comparison is formed between the removing rates and the original wastewater.
The fourth step: when the concentration of the dye wastewater is increased, so that the treated effluent cannot reach the integrated wastewater discharge standard (GB 8978-1996), closing the water inlet valve 9-2 and the peristaltic pump 7, adjusting the voltage and the reaction pause time until the effluent reaches the standard and then recovering the normal treatment process, wherein the method for re-adjusting the voltage and the reaction pause time comprises the steps of sequentially increasing the voltage by 1V, 3V, 5V, 7V and 9V, and adjusting the reaction pause time by 5min, 10min, 15min, 20min, 25min and 30 min.
Example 2
As shown in the figure1, the equipment for treating dye wastewater by an electrochemical-adsorption composite process comprises a direct current stabilized power supply 1, a graphite plate cathode 2 loaded with metal copper palladium, a ruthenium-tin coating titanium anode 3, a magnetic stirrer 4, a wastewater storage tank 5, a magnetic stirrer 6, a peristaltic pump 7, an overflow port 8, a water outlet valve 9-1, a water inlet valve 9-2 and powdered activated carbon 10, wherein a tank body of the equipment for treating dye wastewater by the electrochemical-adsorption composite process is a cuboid, the size of the tank body is 15cm x 10cm x 12cm, the graphite plate cathode 2 loaded with metal copper palladium and the ruthenium-tin coating titanium anode 3 are respectively arranged at two ends of the tank body of the equipment for treating dye wastewater by the electrochemical-adsorption composite process, the graphite plate cathode 2 loaded with metal copper palladium is prepared by an ethylene glycol reduction method, a graphite plate electrode is taken, the surface of sand paper is polished to be smooth and flat, sequentially putting the graphite electrode into NaOH solution and hydrochloric acid solution for soaking, washing and drying to prepare a prepared graphite plate electrode, putting the prepared graphite plate electrode into ethylene glycol solution, and carrying out ultrasonic treatment for 1 h; 76mg of PdCl were weighed out272mg of CuCl2 .2H2O and 240mg of sodium citrate are put in a 250mL round bottom flask, 50mL of ethylene glycol EG is added, stirring is carried out for 1h at room temperature, then the graphite plate electrode soaked in the ethylene glycol is placed in the flask, 5wt% of KOH/EG solution is used for adjusting the pH of the reaction mixed solution to 9.5-0-10.5, stirring is carried out for 30min at room temperature, then the reaction mixed solution is put in an oil bath and reacts for 6h at 160 ℃, after the reaction is finished, the graphite plate electrode is taken out, deionized water is used for washing, vacuum drying is carried out, the graphite plate cathode loaded with metallic copper palladium is obtained, the size of the graphite plate cathode 2 loaded with the metallic copper palladium and the size of the ruthenium tin coating titanium anode 3 are both 10cm x 8cm x 0.5cm, the distance between the two electrodes is 4.0cm, the graphite plate cathode 2 loaded with the metallic copper palladium is connected with the cathode of a direct current stabilized voltage power supply 1 through a lead, the ruthenium tin coating titanium anode 3 is connected with the anode of the, powdered activated carbon 10 and anhydrous sodium chloride are filled between a graphite plate cathode 2 loaded with metal copper palladium and a ruthenium tin coating titanium anode 3, the particle size of the powdered activated carbon 10 is 0.170mm, and an overflow port 8 is arranged below a top cover of the tank body. The overflow port 8 is lower than the top end of the tank body by 3cm, the top cover of the tank body is movably connected with the tank body, a group of openings are arranged on the top cover, a magnetic stirrer 4 is arranged at the bottom of the tank body, and magnetic stirring is arranged in the tank bodyAnd 6, the water outlet valve 9-1 and the water inlet valve 9-2 are respectively arranged at two sides of the tank body, the waste water storage tank 5 is connected with the water inlet valve 9-2 through the peristaltic pump 7, when the waste water completely reacts in the tank body, the waste water flows out through the water outlet valve (9-1), and when the waste water in the tank body is excessive, the excessive waste water overflows from the overflow port (8).
The treatment method specifically comprises the following steps:
the first step is as follows: the powdery active carbon 10 is put into distilled water to be boiled for 3h, then the distilled water is used for washing for 8min to remove water-soluble and volatile substances in the active carbon, the active carbon is dried for 36h at 120 ℃ after the washing is finished, the active carbon is taken out, the active carbon is put between a graphite plate cathode 2 loaded with metal copper palladium and a ruthenium tin coating titanium anode 3, the distance between two electrode plates is 3.0cm, and 20g/L NaCl is added between the electrode plates.
The second step is that: turning on a direct-current power supply 1, adjusting the voltage to be 5V, controlling the reaction intermittent time to be 15min, turning on a water inlet valve 9-2, turning on a peristaltic pump 7, and enabling dye wastewater to enter a reactor from a wastewater storage tank 5, wherein the dye wastewater is alizarin S dye wastewater simulating wastewater, the initial concentration is 600mg/L, COD =600mg/L, and the chromaticity is 5.
The third step: and (3) effluent detection: after the reaction, closing the water inlet valve 9-2, opening the water outlet valve 9-1, allowing the treated dye wastewater to flow out of the water outlet valve 9-1, and discharging the treated dye wastewater after detecting that COD and chroma in the treated dye wastewater reach the Integrated wastewater discharge Standard (GB 8978-1996); after the reaction is carried out for 25 minutes, the removal rate of COD and chromaticity in the treated wastewater reaches 90 percent.
The fourth step: when the concentration of the dye wastewater is increased, the concentration of the treated effluent water is increased and cannot reach the integrated wastewater discharge standard (GB 8978-1996), the water inlet valve 9-2 and the peristaltic pump 7 are closed, the voltage and the reaction intermittent time are readjusted, and the normal treatment process is recovered until the effluent water reaches the standard. The method for readjusting voltage and reaction pause time comprises sequentially increasing voltage 1V, 3V, 5V, 7V and 9V, and adjusting reaction pause time 5min, 10min, 15min, 20min, 25min and 30 min.
Example 3
As shown in figure 1, the equipment for treating dye wastewater by an electrochemical-adsorption composite process comprises a direct current stabilized voltage power supply 1 and a graphite plate cathode loaded with metal copper2. The device comprises a ruthenium-tin coating titanium anode 3, a magnetic stirrer 4, a wastewater storage tank 5, a magnetic stirrer 6, a peristaltic pump 7, an overflow port 8, a water outlet valve 9-1, a water inlet valve 9-2 and powdered activated carbon 10, wherein a tank body of the equipment for treating dye wastewater by the electrochemical-adsorption composite process is a cuboid with the size of 15cm 10cm 12cm, a graphite plate cathode 2 loaded with metallic copper and palladium and the ruthenium-tin coating titanium anode 3 are respectively arranged at two ends of the tank body of the equipment for treating dye wastewater by the electrochemical-adsorption composite process, the graphite plate cathode 2 loaded with metallic copper and palladium is prepared by an ethylene glycol reduction method, a graphite plate electrode is taken, the surface of the graphite plate electrode is polished to be smooth and flat, the graphite plate electrode is sequentially soaked in NaOH solution and hydrochloric acid solution, then washed and dried to prepare the graphite plate electrode, the prepared graphite plate electrode is placed in the ethylene glycol solution, performing ultrasonic treatment for 1 h; 76mg of PdCl were weighed out272mg of CuCl2 .2H2O and 240mg of sodium citrate are put in a 250mL round bottom flask, 50mL of ethylene glycol EG is added, stirring is carried out for 1h at room temperature, then the graphite plate electrode soaked in the ethylene glycol is placed in the flask, 5wt% of KOH/EG solution is used for adjusting the pH of the reaction mixed solution to 9.5-0-10.5, stirring is carried out for 30min at room temperature, then the reaction mixed solution is put in an oil bath and reacts for 6h at 160 ℃, after the reaction is finished, the graphite plate electrode is taken out, the graphite plate electrode is washed by deionized water and dried in vacuum, a graphite plate cathode loaded with metallic copper palladium is obtained, the sizes of the graphite plate cathode 2 loaded with the metallic copper palladium and the graphite plate anode 3 loaded with the metallic copper palladium are both 10cm x 8cm x 0.5cm, the distance between the two electrodes is 5.0cm, the graphite plate cathode 2 loaded with the metallic copper palladium is connected with the cathode of a direct current stabilized voltage power supply 1 through a lead, the ruthenium tin coating titanium anode 3 is connected with the positive, powdered activated carbon 10 and anhydrous sodium chloride are filled between a graphite plate cathode 2 loaded with metal copper palladium and a ruthenium tin coating titanium anode 3, the particle size of the powdered activated carbon 10 is 2.00mm, and an overflow port 8 is arranged below a top cover of the tank body. An overflow port 8 is lower than the top end of the tank body by 5cm, a top cover of the tank body is movably connected with the tank body, a group of openings are arranged on the top cover, a magnetic stirrer 4 is arranged at the bottom of the tank body, a magnetic stirrer 6 is arranged in the tank body, a water outlet valve 9-1 and a water inlet valve 9-2 are respectively arranged at two sides of the tank body, a waste water storage tank 5 is connected with the water inlet valve 9-2 through a peristaltic pump 7, and when waste water isAfter the internal reaction is completed, the wastewater flows out from the water outlet valve 9-1, and when the wastewater in the tank body is excessive, the excessive wastewater overflows from the overflow port 8.
The treatment method specifically comprises the following steps:
the first step is as follows: the powdered activated carbon 10 is put into distilled water to be boiled for 4h, then the distilled water is used for washing for 10min to remove water-soluble and volatile substances in the activated carbon, the activated carbon is dried for 48h at 120 ℃ after the washing is finished, the activated carbon is taken out, the activated carbon is put between a graphite plate cathode 2 which supports metal copper palladium and a ruthenium tin coating titanium anode 3, the distance between two electrode plates is 3.0cm, and 20g/L NaCl is added between the electrode plates.
The second step is that: turning on a direct-current power supply 1, adjusting voltage 9V, controlling reaction pause time for 30min, turning on a water inlet valve 9-2, turning on a peristaltic pump 7, and enabling dye wastewater to enter a reactor from a wastewater storage tank 5, wherein the dye wastewater is alizarin S dye wastewater simulating wastewater, and the initial concentration is 1000mg/L, COD =600mg/L chromaticity 6.
Step three, effluent detection: after the reaction, closing the water inlet valve 9-2, opening the water outlet valve 9-1, allowing the treated dye wastewater to flow out of the water outlet valve 9-1, and detecting COD (chemical oxygen demand) and chromaticity in the treated dye wastewater; after the reaction is carried out for 50 minutes, the removal rate of COD and chroma in the wastewater after the reaction reaches 85 percent, and the wastewater can be discharged after reaching the integrated wastewater discharge standard (GB 8978-1996).
The fourth step: when the concentration of the dye wastewater is increased, so that the treated effluent cannot reach the integrated wastewater discharge standard (GB 8978-1996), closing the water inlet valve 9-2 and the peristaltic pump 7, adjusting the voltage and the reaction pause time until the effluent reaches the standard and then recovering the normal treatment process, wherein the method for re-adjusting the voltage and the reaction pause time comprises the steps of sequentially increasing the voltage by 1V, 3V, 5V, 7V and 9V, and adjusting the reaction pause time by 5min, 10min, 15min, 20min, 25min and 30 min.
High current efficiency, strong oxidation capacity, low energy consumption, good COD removal and decoloration effects, convenient operation and wide application range.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (7)
1. The equipment for treating dye wastewater by the electrochemical-adsorption composite process is characterized in that: the device comprises a direct current stabilized voltage power supply (1), a graphite plate cathode (2) loaded with metallic copper palladium, a ruthenium tin coating titanium anode (3), a magnetic stirrer (4), a wastewater storage tank (5), a magnetic stirrer (6), a peristaltic pump (7), an overflow port (8), a water outlet valve (9-1), a water inlet valve (9-2) and powdered activated carbon (10), wherein the graphite plate cathode (2) loaded with metallic copper palladium and the ruthenium tin coating titanium anode (3) are respectively arranged at two ends of a tank body of the device for treating dye wastewater by an electrochemical-adsorption composite process, the graphite plate cathode (2) loaded with metallic copper palladium is connected with the negative electrode of the direct current stabilized voltage power supply (1) through a lead, the powdered activated carbon (10) and anhydrous sodium chloride are filled between the graphite plate cathode (2) loaded with metallic copper palladium and the ruthenium tin coating titanium anode (3), the overflow port (8) is arranged below the top cover of the tank body, the top cover of the tank body is movably connected with the tank body, the top cover of the tank body is provided with a group of open holes, the bottom of the tank body is provided with a magnetic stirrer (4), a magnetic stirrer (6) is arranged in the tank body, the water outlet valve (9-1) and the water inlet valve (9-2) are respectively arranged at two sides of the tank body, the waste water storage tank (5) is connected with the water inlet valve (9-2) through a peristaltic pump (7), when the waste water completely reacts in the tank body, the waste water flows out from the water outlet valve (9-1), and when the waste water in the tank body is excessive; the graphite plate cathode (2) loaded with the metal copper palladium is prepared by an ethylene glycol reduction method, a graphite plate electrode is taken, the surface of the graphite plate electrode is polished to be smooth and flat by abrasive paper, the graphite plate electrode is sequentially placed into NaOH solution and hydrochloric acid solution for soaking, then is washed and dried to prepare a prepared graphite plate electrode, and the prepared graphite plate electrode is placed into ethylene glycol solution and is subjected to ultrasonic treatment for 1 hour; 76mg of PdCl were weighed out272mg of CuCl2.2H2O and 240mg of sodium citrate in a 250mL round-bottom flask, and 50mL of ethylene glycol was added, stirred at room temperature for 1h, and then the graphite plate electrode soaked in ethylene glycol was placed therein with 5wt% KOH/ethylene glycolAnd (3) regulating the pH value of the reaction mixed solution to 9.5-10.5 by using the solution, continuously stirring at room temperature for 30min, then placing the reaction mixed solution in an oil bath kettle, reacting at 160 ℃ for 6h, taking out a graphite plate electrode after the reaction is finished, washing with deionized water, and drying in vacuum to obtain the metal copper-palladium loaded graphite plate cathode.
2. The apparatus for treating dye wastewater by electrochemical-adsorption composite process according to claim 1, wherein: the tank body of the equipment for treating the dye wastewater by the electrochemical-adsorption composite process is a cuboid, and the size of the tank body is 15cm multiplied by 10cm multiplied by 12 cm.
3. The apparatus for treating dye wastewater by electrochemical-adsorption composite process according to claim 1, wherein: the sizes of the graphite plate cathode (2) loaded with metal copper palladium and the ruthenium tin coating titanium anode (3) are both 10cm multiplied by 8cm multiplied by 0.5cm, and the distance between the two electrodes is 3.0cm-5.0 cm.
4. The apparatus for treating dye wastewater by electrochemical-adsorption composite process according to claim 1, wherein: the particle diameter of the powdered activated carbon (10) is 0.15mm to 2.00 mm.
5. The apparatus for treating dye wastewater by electrochemical-adsorption composite process according to claim 1, wherein: the overflow port (8) is 1cm-5cm lower than the top end of the tank body.
6. A treatment method of an apparatus for treating dye wastewater by an electrochemical-adsorption composite process as claimed in any one of claims 1 to 5, wherein: the method comprises the following steps: the first step is as follows: putting the powdered activated carbon (10) into distilled water to boil for 2-4h, then washing with distilled water for 5-10min, drying at 120 ℃ for 24-48h after washing, taking out, putting between a graphite plate cathode (2) loaded with metal copper palladium and a ruthenium tin coating titanium anode (3), and simultaneously adding 20g/L anhydrous sodium chloride; the second step is that: opening a direct current stabilized voltage supply (1), adjusting the voltage range to be less than or equal to 9V, controlling the reaction intermittent time to be less than or equal to 30min, opening a water inlet valve (9-2), starting a peristaltic pump (7), enabling dye wastewater to enter a reactor from a wastewater storage tank (5), wherein the dye wastewater adopts alizarin S dye wastewater simulating wastewater, the initial concentration is 200-; step three, effluent detection: after the reaction, closing the water inlet valve (9-2), opening the water outlet valve (9-1), allowing the treated dye wastewater to flow out of the water outlet valve (9-1), and discharging the treated dye wastewater after detecting that COD and chroma in the treated dye wastewater reach the Integrated wastewater discharge Standard (GB 8978-1996); the fourth step: when the concentration of the dye wastewater is increased, the concentration of the treated effluent water is increased and cannot reach the integrated wastewater discharge standard (GB 8978-1996), the water inlet valve (9-2) and the peristaltic pump (7) are closed, the voltage and the reaction intermittent time are readjusted until the effluent water reaches the standard, and the normal treatment process is recovered.
7. The treatment method of the apparatus for treating dye wastewater by electrochemical-adsorption composite process according to claim 6, characterized in that: and the fourth step of readjusting the voltage and the reaction pause time comprises the steps of sequentially increasing the voltage by 1V, 3V, 5V, 7V and 9V, and adjusting the reaction pause time by 5min, 10min, 15min, 20min, 25min and 30 min.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710479443.7A CN107140716B (en) | 2017-06-22 | 2017-06-22 | Equipment and method for treating dye wastewater by electrochemical-adsorption composite process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710479443.7A CN107140716B (en) | 2017-06-22 | 2017-06-22 | Equipment and method for treating dye wastewater by electrochemical-adsorption composite process |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107140716A CN107140716A (en) | 2017-09-08 |
CN107140716B true CN107140716B (en) | 2020-09-01 |
Family
ID=59781831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710479443.7A Expired - Fee Related CN107140716B (en) | 2017-06-22 | 2017-06-22 | Equipment and method for treating dye wastewater by electrochemical-adsorption composite process |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107140716B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111217443A (en) * | 2020-02-10 | 2020-06-02 | 何亚婷 | Soy sauce waste water decoloration modified filler reactor |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5549552B2 (en) * | 1975-12-30 | 1980-12-12 | ||
JPH0416286A (en) * | 1990-05-03 | 1992-01-21 | Konica Corp | Electrochemical treatment of water to be treated |
CN1789498A (en) * | 2004-12-15 | 2006-06-21 | 中国科学院生态环境研究中心 | Metal modified active carbon fiber electrode and method for removing nitrate thereby |
CN102020342A (en) * | 2011-01-14 | 2011-04-20 | 南京大学 | Compound three-dimensional electrode reactor and application thereof in treatment of nitrogenous organic wastewater |
CN103193301A (en) * | 2013-04-27 | 2013-07-10 | 国电环境保护研究院 | Electrochemical reactor for processing nitrogenous organic wastewater, and application and processing method thereof |
CN103304038A (en) * | 2013-05-14 | 2013-09-18 | 南京大学 | Electrochemical-biological membrane synergistic reactor and application thereof in nitrogen-containing organic wastewater |
CN106663817A (en) * | 2014-07-08 | 2017-05-10 | Bdf Ip控股有限公司 | Cathode design for electrochemical cells |
-
2017
- 2017-06-22 CN CN201710479443.7A patent/CN107140716B/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5549552B2 (en) * | 1975-12-30 | 1980-12-12 | ||
JPH0416286A (en) * | 1990-05-03 | 1992-01-21 | Konica Corp | Electrochemical treatment of water to be treated |
CN1789498A (en) * | 2004-12-15 | 2006-06-21 | 中国科学院生态环境研究中心 | Metal modified active carbon fiber electrode and method for removing nitrate thereby |
CN102020342A (en) * | 2011-01-14 | 2011-04-20 | 南京大学 | Compound three-dimensional electrode reactor and application thereof in treatment of nitrogenous organic wastewater |
CN103193301A (en) * | 2013-04-27 | 2013-07-10 | 国电环境保护研究院 | Electrochemical reactor for processing nitrogenous organic wastewater, and application and processing method thereof |
CN103304038A (en) * | 2013-05-14 | 2013-09-18 | 南京大学 | Electrochemical-biological membrane synergistic reactor and application thereof in nitrogen-containing organic wastewater |
CN106663817A (en) * | 2014-07-08 | 2017-05-10 | Bdf Ip控股有限公司 | Cathode design for electrochemical cells |
Also Published As
Publication number | Publication date |
---|---|
CN107140716A (en) | 2017-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103304038B (en) | Electrochemical-biological membrane synergistic reactor and application thereof in nitrogen-containing organic wastewater | |
CN108439553B (en) | Electrochemical oxidation device for removing chloride ions in water | |
CN102211830B (en) | Method for treating cutting liquid wastewater by electro-catalytic oxidation | |
CN105198131A (en) | Method for treating waste water through double catalytic oxidation process and device for achieving method | |
CN102887559B (en) | Electrochemical reduction assistance-based biosorption integrated reactor and treatment method of hexavalent chromium-containing wastewater | |
CN106673140B (en) | The method that removing chloride is removed in electrochemical reactor and electro-catalysis | |
CN103641207B (en) | A kind of Zinc-containing electroplating waste water combined electrolysis groove treatment process | |
CN107098444A (en) | A kind of Novel electric flocculation plant and electro-flucculation process | |
CN103641210B (en) | A kind of electroplating wastewater of chromium combined electrolysis groove treatment process | |
CN103539225B (en) | Internal-circulating fluidized bed electro-catalytic reactor for treating chemical organic wastewater and operation conditions of reactor | |
CN103641206B (en) | A kind of method applied the process of combined electrolysis groove and contain cadmium electroplating wastewater | |
CN107140716B (en) | Equipment and method for treating dye wastewater by electrochemical-adsorption composite process | |
CN103232095B (en) | Device and method for recovering activity of zero-valent iron passivated in Cr pollution removal process | |
CN202016892U (en) | Composite multidimensional electro-catalysis device | |
CN213569939U (en) | Continuous electro-catalysis effluent treatment plant | |
CN108640417A (en) | A kind of new method of electrochemistry and microbiological fuel cell combined treatment waste water from dyestuff | |
CN203866076U (en) | Complex-breaking and chromium-removing device for tanning dyeing wastewater | |
CN208135936U (en) | A kind of composite electrochemical oxidation reaction apparatus | |
CN103539228A (en) | Multiphase electro-catalytic industrial wastewater treatment device for efficiently removing heterocyclic compounds | |
CN103539232B (en) | Fluidized bed type three-phase electrode reactor and method for treating high-concentration organic wastewater by using reactor | |
CN209619472U (en) | A kind of device recycling nickel from nickel-containing waste water | |
CN205062184U (en) | Lose waste liquid recycle and regeneration system a little | |
CN205527884U (en) | Electroplate heavy metal recycling device | |
CN207192877U (en) | A kind of batch-type three-dimensional electrocatalysis device | |
CN104817137A (en) | Quasi-zero-polar-distance electrolytic tank for water treatment |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200901 |