CN210974234U - High-efficient pollution-free electrochemistry sewage treatment plant - Google Patents
High-efficient pollution-free electrochemistry sewage treatment plant Download PDFInfo
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- CN210974234U CN210974234U CN201921652324.8U CN201921652324U CN210974234U CN 210974234 U CN210974234 U CN 210974234U CN 201921652324 U CN201921652324 U CN 201921652324U CN 210974234 U CN210974234 U CN 210974234U
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Abstract
The utility model relates to a high-efficiency pollution-free electrochemical sewage treatment device, which is structurally characterized in that a concentration pump is communicated with a bottom water tank through a concentration pump water pumping pipe, the concentration pump is communicated with a nanofiltration concentration membrane through a concentration pump water pumping pipe, and the nanofiltration concentration membrane is communicated to the bottom water tank through a concentrated water return pipe; the bottom water tank is communicated with the circulating pump through a circulating pump water suction pipe, the circulating pump is communicated to the upper water tank through a circulating pump water outlet pipe, a cylinder electrode is arranged below a water outlet of the upper water tank, one end of a line electrode is connected with a hammer ball, the other end of the line electrode sequentially penetrates through the cylinder electrode, the upper water tank and is connected with the power box, and the power box is electrically connected with the cylinder electrode. The utility model discloses can save treatment cost and tedious human labor greatly.
Description
Technical Field
The utility model relates to a sewage treatment device, in particular to a high-efficiency pollution-free electrochemical sewage treatment device.
Background
Styrene Butadiene Rubber (SBR) is a copolymer of butadiene and styrene, and can be divided into two types, namely, emulsion polymerized styrene butadiene rubber (ESBR, abbreviated as emulsion polymerized styrene butadiene rubber) initiated by free radicals and solution polymerized styrene butadiene rubber (SSBR, abbreviated as solution polymerized styrene butadiene rubber) polymerized by anion solution according to a polymerization system. At present, most of domestic manufacturers begin to produce styrene butadiene rubber according to the market demands of China. The production technology of emulsion polymerized styrene butadiene rubber is mature and shaped. The production process is more standard, and the procedures of monomer storage, monomer configuration, polymerization, recovery, mucilage storage, stirring, coagulation, drying, briquetting and the like are completed. Butadiene, styrene, water, emulsifier, electrolyte, activator and initiator are polymerized in a polymerization reactor. And removing unreacted butadiene from the polymerized mucilage through secondary flash evaporation, and removing unreacted styrene through a degassing tower. And (3) the degassed rubber cement enters a post-treatment process, and after a coagulant, an anti-aging agent, an oil emulsion and other auxiliary agents are added, the final product styrene butadiene rubber is produced through coagulation, extrusion dehydration, drying, briquetting and packaging. In the process of producing styrene butadiene rubber by emulsion polymerization, different grades of styrene butadiene rubber can be produced due to different raw material contents or different added initiators, but the varieties of main raw materials are the same.
The main pollutants in the styrene butadiene rubber wastewater are butadiene and styrene monomers which are not completely recovered and various auxiliary agents (an accelerant, an anti-aging agent and a polymerization inhibitor) added in the production process, the components of the pollutants are complex, most of the pollutants belong to toxic, harmful and difficultly-biochemically-degraded substances, the wastewater treatment difficulty is high, the types and the concentrations of the pollutants contained in the styrene butadiene wastewater are greatly different, and the components are also very complex.
The treatment of the styrene butadiene rubber wastewater in the prior art adopts a Fenton reagent method, and has the advantages of good treatment effect, normal temperature and normal pressure; the disadvantages are that four kinds of agents are added, then coagulation separation is carried out, coagulation and coagulant aids are added, and the adding of the agents is complicated. The mud yield is large, and the mud generated by the Fenton reagent in the styrene butadiene rubber wastewater is determined as dangerous waste, so the mud yield is large and the treatment cost is high.
The ozone oxidation method has the advantages of normal temperature and pressure, no need of adding medicament, no secondary pollution and environmental protection; the disadvantages are selective oxidation by ozone, poor effect of some aromatics and chain scission, and high treatment cost.
The chemical combination method has the advantages of normal temperature and pressure, good treatment effect, high reaction rate and complex process and high treatment cost due to the addition of medicaments.
The method adopts a biological method, and has the advantages of easy control at normal temperature and normal pressure and low treatment cost. The disadvantages are low treatment efficiency and large mud production.
And a combined treatment technology is adopted, so that the advantages of good treatment effect and high treatment cost are achieved, and the defects of multiple processes are complex to operate.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electrochemistry sewage treatment plant to the problem that exists among the above-mentioned prior art, solved among the prior art and handled the problem that industrial waste water mud production is big, with high costs.
The technical scheme of the utility model as follows:
the electrochemical sewage treatment device comprises a concentration pump, a circulating pump, an upper water tank, a cylinder electrode, a line electrode, a hammer ball, a bottom water tank, a nanofiltration concentration membrane and a power tank; the concentration pump is communicated with the bottom water tank through a concentration pump water pumping pipe, the concentration pump is communicated with the nanofiltration concentration membrane through a concentration pump water pumping pipe, and the nanofiltration concentration membrane is communicated to the bottom water tank through a concentrated water return pipe; the bottom water tank is communicated with the circulating pump through a circulating pump water suction pipe, the circulating pump is communicated to the upper water tank through a circulating pump water outlet pipe, a cylinder electrode is arranged below a water outlet of the upper water tank, one end of a wire electrode is connected with a hammer ball, the other end of the wire electrode sequentially penetrates through the cylinder electrode and the upper water tank to be connected with the power box, and the power box is electrically connected with the cylinder electrode.
The nanofiltration concentration membrane is provided with a clear water pipe.
An overflow pipe is arranged between the upper water tank and the bottom water tank.
And a water outlet of the upper water tank is provided with a throttle valve.
A voltmeter is arranged between the cylinder electrode and the power box.
A first ammeter and a second ammeter are arranged between the wire electrode and the power box, and a first switch and a second switch are respectively arranged between the first ammeter and the power box and between the second ammeter and the power box.
The utility model has the advantages as follows:
1. the outlet water of the nanofiltration concentration membrane has almost no pollutants, can be used as industrial cooling circulating water or other industrial water with low requirements on water quality, and realizes real zero-discharge sewage and sludge.
2. The equipment can not generate sludge (dangerous waste), and can greatly save the treatment cost and the heavy manual labor.
3. Because the soluble COD of the styrene butadiene rubber wastewater is more than 97 percent, only a very small amount of pollutants are not treated and decomposed after the treatment of ferrous ion catalytic atomization corona discharge and exist in a soluble state, the treatment load of the nanofiltration concentration membrane can be greatly reduced, and the service life of the nanofiltration concentration membrane is prolonged.
4. Because the treatment of the styrene butadiene rubber wastewater by ferrous ion catalytic atomization corona discharge of the device is carried out under a neutral condition, the service life of the nanofiltration concentration membrane is greatly prolonged compared with that of the nanofiltration concentration membrane for concentrating ferrous ions under an acidic condition in the treatment process of the Fenton reagent.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a concentration pump, 2, a concentration pump water pumping pipe, 3, a concentration pump water pumping pipe, 4, a clear water pipe, 5, a concentrated water return pipe, 6, a circulating pump water suction pipe, 7, a circulating pump, 8, a circulating pump water outlet pipe, 9, an overflow pipe, 10, an upper water tank, 11, a throttle valve, 12, a cylinder electrode, 13, a line electrode, 14, a hammer ball, 15, a bottom water tank, 16, a voltmeter, 17, a first ammeter, 18, a second ammeter, 19, a first switch, 20, a second switch, 21, a nanofiltration concentration membrane and 22, a power box are arranged.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings in conjunction with specific embodiments.
Examples
As shown in the figure, the electrochemical sewage treatment device comprises a concentration pump 1, a circulating pump 7, an upper water tank 10, a cylinder electrode 12, a line electrode 13, a hammer ball 14, a bottom water tank 15, a nanofiltration concentration membrane 21 and a power tank 22 (HS 6500E frequency 60HZ output power 5KW rotation 3600 r/min); the concentration pump 1 is communicated with a bottom water tank 15 through a concentration pump water pumping pipe 2, the concentration pump 1 is communicated with a nanofiltration concentration membrane 21 through a concentration pump water pumping pipe 3, the nanofiltration concentration membrane 21 is communicated to the bottom water tank 15 through a concentrated water return pipe 5, and the nanofiltration concentration membrane is provided with a clear water pipe 4; the bottom water tank 15 is communicated with the circulating pump 7 through a circulating pump water suction pipe 6, the circulating pump 7 is communicated to the upper water tank 10 through a circulating pump water outlet pipe 8, an overflow pipe 9 is arranged between the upper water tank 10 and the bottom water tank 15, a throttle valve 11 is arranged at a water outlet of the upper water tank, a cylinder electrode 12 is arranged below the water outlet of the upper water tank 10, one end of a line electrode 13 is connected with a hammer ball 14, the other end of the line electrode 13 sequentially penetrates through the cylinder electrode 12 and the upper water tank 10 to be connected with a power box 22, the power box 22 is electrically connected with the cylinder electrode 12, and a voltmeter 16 is arranged between the cylinder electrode and the; a first ammeter 17 and a second ammeter 18 are arranged between the wire electrode and the power box, and a first switch 19 and a second switch 20 are respectively arranged between the first ammeter and the power box and between the second ammeter and the power box.
When the device works, the second switch 20 of the power box is firstly opened, the first switch 19 is closed, 1.3 kilovolt discharge voltage is modulated, the line electrode 13 and the cylinder electrode 12 are subjected to normal fogging discharge, completely dissolved ferrous sulfate is added into the styrene butadiene rubber wastewater to be treated in the bottom water tank 15, 0.8g ferrous sulfate is added into every 500ml of styrene butadiene rubber wastewater, the wastewater in the bottom water tank 15 is pumped into the upper water tank 10 by the circulating pump 7, the water quantity is controlled by the throttle valve 11 (the circulating water quantity is 71m L/min), the water flows into the bottom water tank 15 after being treated in a discharge area between the line electrode and the cylinder electrode along the line electrode 13, the water is circularly treated, after 28min treatment, the COD removal rate of the styrene butadiene rubber wastewater tends to be balanced when reaching 86%, then the concentration pump 1 is started, after the treated wastewater is concentrated by the concentration membrane 21, ferrous ions and a small amount of undegraded pollutants return to the bottom water tank to be mixed with the wastewater to be treated, the ferrous ions continue to play a role of catalyzing grounding electrode atomization corona discharge, the outlet water of the nanofiltration concentration membrane almost has no high nanofiltration pollutant, and can be used
The utility model discloses a discharge theory of operation as follows:
the zero-discharge electrochemical sewage treatment equipment without loss of ferrous ion utilizes the ferrous ion catalytic earth electrode to atomize corona discharge, and in the process of producing plasma by high-voltage discharge of electrode the active free radicals of particles of OH, O and H can be produced, and the active free radicals of these particles can be used for oxidizing and decomposing discharge regionOrganic pollutants in the sewage can continuously purify the sewage. In the particle-active radical,. OH is common to all higher oxidations, its redox potential is 2.8V, and its oxidizing power is second only to fluorine (F)2) It can be used for oxidizing and decomposing almost any organic pollutants in water body. The reaction process of the oxidative decomposition of organic pollutants R by OH is as follows:
R +•OH→...→CO2+ H2O
the technology can be used for pretreatment of the wastewater by being combined with other methods and can also be used for deep purification treatment of water, the COD removal rate can be improved by more than 20% by ferrous ion catalysis, simultaneously, ferrous ions after the reaction are concentrated by a nanofiltration concentration membrane, the concentrated ferrous ions and partial pollutants return to a bottom water tank and are mixed with newly added styrene butadiene rubber wastewater to carry out catalytic oxidation on the newly added styrene butadiene rubber wastewater, the COD of clear water discharged by the nanofiltration concentration membrane can be below 5 mg/L, and the clear water can be used as a cooling cycle or other industrial water with low water quality to realize zero discharge of water and zero discharge of mud.
The utility model discloses a nanofiltration concentrated membrane is a thin layer composite membrane, and it enables 90% NaCl dialysis, and 99% high price particle and material are held back, because this kind of membrane is about 1 nanometer at the molecule that the entrapment rate is greater than 95% in the infiltration process, therefore it is named "receive the filter membrane". The cut-off molecular weight of the nanofiltration concentration membrane is from 200-100, so that more than 90% of NaCl can be dialyzed, and the nanofiltration concentration membrane is suitable for various industries such as desalination, monosaccharide removal, concentration equipment and the like.
This application advantage is embodied in, reaches 87% to butadiene styrene rubber waste water cod removal rate, adopts the nanofiltration membrane effectively to concentrate the pollutant of ferrous ion and ferrous catalysis atomizing corona discharge treatment back sewage for it hardly has to receive the water pollutant of straining, receives like this and strains that concentrated membrane goes out water and can regard as cooling cycle water or other industrial water completely, realizes the zero release, does not produce mud. The concentrated water of the nanofiltration membrane returns to the raw water tank to be treated by catalytic atomization corona discharge, so that the loss of ferrous ions is avoided. Pollutants in the sewage after the treatment of ferrous ions catalytic atomization corona discharge are in a neutral condition, so that the practical service life of the nanofiltration concentration membrane is greatly prolonged.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation. Therefore, the present invention should not be construed as limited to the embodiments set forth herein.
Claims (6)
1. An efficient pollution-free electrochemical sewage treatment device is characterized by comprising a concentration pump, a circulating pump, an upper water tank, a cylinder electrode, a line electrode, a hammer ball, a bottom water tank, a nanofiltration concentration membrane and a power tank; the concentration pump is communicated with the bottom water tank through a concentration pump water pumping pipe, the concentration pump is communicated with the nanofiltration concentration membrane through a concentration pump water pumping pipe, and the nanofiltration concentration membrane is communicated to the bottom water tank through a concentrated water return pipe; the bottom water tank is communicated with the circulating pump through a circulating pump water suction pipe, the circulating pump is communicated to the upper water tank through a circulating pump water outlet pipe, a cylinder electrode is arranged below a water outlet of the upper water tank, one end of a wire electrode is connected with a hammer ball, the other end of the wire electrode sequentially penetrates through the cylinder electrode and the upper water tank to be connected with the power box, and the power box is electrically connected with the cylinder electrode.
2. The apparatus of claim 1, wherein the nanofiltration concentration membrane is provided with a clean water pipe.
3. The apparatus according to claim 1, wherein an overflow pipe is provided between the upper tank and the bottom tank.
4. A high efficiency non-polluting electrochemical sewage treatment plant as claimed in claim 1 or 3 wherein the outlet of said upper tank is provided with a throttle valve.
5. The apparatus according to claim 1, wherein a voltmeter is disposed between the cylindrical electrode and the power box.
6. The apparatus of claim 1, wherein a first ammeter and a second ammeter are disposed between the wire electrode and the power box, and a first switch and a second switch are disposed between the first ammeter and the power box, respectively.
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| CN201921652324.8U CN210974234U (en) | 2019-09-30 | 2019-09-30 | High-efficient pollution-free electrochemistry sewage treatment plant |
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| CN201921652324.8U CN210974234U (en) | 2019-09-30 | 2019-09-30 | High-efficient pollution-free electrochemistry sewage treatment plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110606603A (en) * | 2019-09-30 | 2019-12-24 | 辽宁石油化工大学 | High-efficient pollution-free electrochemistry sewage treatment plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110606603A (en) * | 2019-09-30 | 2019-12-24 | 辽宁石油化工大学 | High-efficient pollution-free electrochemistry sewage treatment plant |
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