JP2016140808A - Global environment improvement apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve separation between oil and water by a liquid electrolyzing technique in first treatment of waste liquid, wastewater, sewage and the like containing oil, and to further detoxify the separated water by, if necessary, applying spray drying, electrolytic separation, or electrolytic sterilization.SOLUTION: A global environment improvement apparatus for detoxifying waste liquid to be treated includes individual devices for treating waste liquid to be treated, in multiple stages. The individual device arranged at a preceding stage is a liquid electrolyzer exhibiting a function for oil-water separation of the waste liquid to be treated, its special electrode comprises a plurality of plate-shaped electrodes arranged to face each other, and a power source supplied to the special electrode is an AC-DC dual-use high-speed electrolytic power source.SELECTED DRAWING: Figure 1

Description

  The present invention mainly belongs to the technical field of global environment improvement equipment relating to pollution-free treatment of waste liquid composed of a mixture comprising an oil component and a chemical component, or a metal component and a water component.

Detoxification treatment of waste liquid, drainage, sewage, etc. is one of the important urgent issues for global environmental conservation, and the world is actively working on the development of improvement technology. However, there are a wide variety of types and properties of waste liquid, drainage and sewage, and the current state of treatment technology is not standardized.

  Although there are many water treatment technologies and related technologies, the invention described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2005-329380) describes “a heater as a heating means for an aqueous waste solution in an evaporation concentration apparatus for an aqueous waste solution” A concentration chamber for evaporating and concentrating the aqueous waste liquid by incorporating this heater, a cooling pipe for passing cooling water to cool and liquefy the steam generated in the concentration chamber, and a cooling chamber for storing the cooling pipe, , Separating, removing, and adsorbing oil contained in the circulating water, an ejector for decompressing the concentrating chamber and the cooling chamber, a circulating pump for supplying circulating water to the ejector, a circulating tank for storing the circulating water, and The water-based waste liquid evaporating and concentrating device is characterized by comprising an oil-water separation unit for the purpose.

In addition, the invention described in Patent Document 2 (Japanese Patent No. 3358786) is “in a method for separating oil and water containing a surfactant and an oil emulsified by the action of the surfactant. An anode and a cathode are provided in the partitioned anode chamber and cathode chamber, respectively, and the waste water is sent to the anode chamber of the diaphragm electrolysis process in which a DC voltage is applied between the anode and the cathode, and the electrolytic treatment is performed. Part of the anodizing liquid passes through the diaphragm and is discharged from the cathode chamber, and the remaining anodizing liquid is discharged from the anode chamber and introduced into the middle part of the gas-liquid separator. After extracting a part of the sample and introducing it into the packed bed filled with the adhering material and bringing it into contact with the adhering material, the oil-water separation process is led to the oil-water separation process, and the remaining part is extracted from the bottom of the gas-liquid separator. Milk that circulates during feeding Is that oil-water separation method oil-containing waste water. "

  In addition, the invention described in Patent Document 3 (Japanese Patent No. 5197273) describes that “a slurry in which a binder is added to ceramic powder is sprayed as droplets in a spray drying chamber and the droplets are dried. In the spray drying apparatus for obtaining granulated granules, a layer obtained by coating at least one fibrous inorganic substance of glass fiber, carbon fiber, ceramic fiber and ceramic whisker with a fluororesin is formed on a part of the inner wall of the spray drying chamber. The spray drying apparatus is characterized in that it is formed.

JP 2005-329380 A Japanese Patent No. 3358786 Japanese Patent No. 5197273

  Based on the knowledge gained from years of research and experiments on water treatment, the present applicant, in particular, in the detoxification treatment of waste liquids including oil, such as cutting oil (including coolant), drainage and sewage, It came to the idea that it is important to separate oil and water. First of all, by utilizing the fact that oil and metal ions do not stick together, the initial treatment of oil-containing waste liquid, waste water, sewage, etc. achieved separation of oil and water by liquid electrolysis technology, and the separated water To further detoxify treatment, the solution was solved by applying electrolytic separation treatment, electrolytic sterilization treatment, and spray drying treatment as necessary.

  This global environment improvement device is a global environment improvement device that detoxifies the waste liquid to be processed, and includes an individual processing device that processes the waste liquid to be processed in multiple stages, and the individual device disposed on the front side is the waste liquid to be processed Is a liquid electrolytic treatment apparatus that exhibits the function of separating oil and water, and the special electrode is a plurality of plate electrodes arranged opposite to each other, and the power supplied to the special electrode is a high-speed electrolytic power supply for both AC and DC A global environment improvement device characterized by that.

  Moreover, this global environment improvement apparatus is characterized in that the front shape of the plate-like electrode is a substantially rectangular shape.

  Further, in this global environment improving device, the front shape of the plate-like electrode is substantially circular.

  Moreover, in this global environment improvement apparatus, the oil component after the said oil-water separation is collect | recovered from the said liquid electrolysis processing apparatus.

  Moreover, in this global environment improvement apparatus, the water component after the oil-water separation is further subjected to a sterilization treatment by a high-speed electrolytic sterilization apparatus.

Further, in this global environment improvement device, the water component after the oil-water separation is ionized by being supplied to a spray tower to which air and a heat source are provided by a supercharger and spray-dried, and then provided with a DC power source. It is characterized in that the particles are adsorbed by an electric dust collector having a dust collecting electrode composed of electrodes and then discharged as an air clean exhaust.

  According to the global environment improvement device of the present invention, the waste liquid composed of the mixture of the oil component and the chemical component, the metal component and the water component is separated into the oil component and the water component. Since the clarified process is advanced, the detoxification process can be progressed efficiently.

  Moreover, according to the invention of claim 2, the production of the electrode for electrolysis is simplified, and it can contribute to the reduction of contamination of the electrode.

  Further, according to the invention of claim 3, it is possible to further contribute to the reduction of contamination of the electrode.

  According to the invention of claim 4, since the recovered oil component can be traded with value, the effect on resource saving is great.

  According to the invention of claim 5, since the water component after the oil-water separation is further subjected to a sterilization treatment by the high-speed electrolytic sterilization device, the oil-liquid separation degree of the components called waste liquid, drainage, sewage and the like is further increased. The sterilizing effect of the water component is greatly enhanced.

Further, according to the invention of claim 6, the atmosphere-cleaning exhaust that does not contain even fine particles is achieved by spray drying and electrostatic dust collection, so that a detoxification process suitable for the environment is achieved. In addition, it is possible to recycle useful materials collected in the dust collection electrode, and it is also possible to reduce the volume of dust by using the dust collection electrode, so an industrial waste management table (manifest) is not required, and waste liquid Can be processed in the manufacturing process and in the factory, and greatly contributes to CO ₂ reduction by reducing transportation fuel cost and management man-hours.

It is explanatory drawing of an example of the global environment improvement apparatus which mainly consists of an electrolytic oil water separator, an electrolytic separator, a high-speed electrolytic sterilizer, and an electrostatic precipitator. It is explanatory drawing of the other example of the global environment improvement apparatus mainly consisting of an electrolytic oil water separator, an electrolytic separator, a high-speed electrolytic sterilizer, and an electrostatic precipitator. It is explanatory drawing of the front of a circular electrode. It is explanatory drawing of the side surface of a circular electrode. It is a perspective view explaining a circular electrode.

  As an embodiment for carrying out the invention of the present application, in a global environment improvement device for detoxifying treatment waste liquid, the individual device disposed in the previous stage is provided with an individual treatment device for treating the treatment waste liquid in multiple stages. This is a liquid electrolysis processing device that exhibits the function of separating waste water from oil and water. The special electrode is a plurality of plate electrodes arranged opposite to each other, and the power supplied to the special electrode is AC / DC high-speed electrolysis. It can be set as the global environment improvement apparatus characterized by being a power supply.

The global environment improving device according to claim 1, wherein a front shape of the plate-like electrode is a substantially square shape.

The global environment improving device according to claim 1, wherein a front shape of the plate-like electrode is substantially circular.

  Moreover, it can be set as the global environment improvement apparatus described in Claims 1-3 by which the oil component after the said oil-water separation is collect | recovered from the said liquid electrolysis processing apparatus.

Moreover, the water component after the oil-water separation is further subjected to a sterilization treatment by a high-speed electrolytic sterilization apparatus, and the global environment improving device according to any one of claims 1 to 4 can be obtained.

Further, the water component after the oil-water separation is sent to a spray tower to which air and a heat source are applied by a supercharger and spray-dried, and then a dust collecting electrode including an ionization electrode to which a DC power source is applied. It can be set as the global environment improvement apparatus as described in any one of Claims 1-5 characterized by discharging | emitting as air | atmosphere clean exhaust, after adsorb | sucking particle | grains with the electric dust collector which has.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory diagram of an example of a global environment improvement device mainly composed of an electrolytic oil / water separator, an electrolytic separator, a high-speed electrolytic sterilizer, and an electrostatic precipitator according to the present invention.
The waste liquid once stored in the waste liquid tank 4 is sent to the electrolytic separation electrode tank 2 by the liquid feed pump 5 and then subjected to electrolytic separation treatment by the electrolytic separation electrode 3. Oil / water is separated by the electrolytic separation electrode 3 and is generally cleanly separated into three layers of an oil liquid layer, a contaminant layer and a water component layer. The waste liquid is stored in a form in which the oil component floats above the water component. Since the metal ions and the oil component in the waste liquid do not stick to each other, it is advantageous in terms of treatment that the metal ions do not stick to the oil component floating upward.
Since at least the uppermost oil component is recovered from the waste liquid separated into three layers by the electrolytic separation electrode 2 to the oil liquid recovery layer 7 through the oil feed pipe 6, and can be traded valuable by reprocessing as desired. It can greatly contribute to resource saving. At that time, it does not prevent the collection of foreign matters in parallel.

The waste liquid from which the oil component has been recovered in the electrolytic separation electrode tank 2 is sent to the electrolytic oil / water separation tank 1 and can be subjected to further electrolytic oil / water separation, electrolytic separation, and high-speed electrolytic sterilization as necessary. In the example of FIG. 1, the high-speed electrolytic sterilization device 9 is provided in the next stage, and the waste liquid sent from the electrolytic oil / water separation tank 1 to the high-speed electrolytic sterilization device 9 via the first liquid feeding pipe 15 is subjected to further electrolytic treatment. be able to. The high-speed electrolytic sterilization apparatus 9 in which the caster 21 is installed in the lower part and can be unitized can perform high-speed electrolytic sterilization by the electrolytic separation electrode 3. The treatment liquid that has been sterilized and electrolytically separated by the high-speed electrolytic sterilization apparatus 9 further separates the oil liquid and the foreign substances, and collects the separated oil liquid and foreign substances from the oil liquid and the foreign substance collection pipe 12, The water component and impurities are stored in the storage tank 11 as a treatment liquid substantially composed of water components and impurities via the second liquid feeding pipe 15-1 in a clean state that has been subjected to electrolytic sterilization.

The waste liquid after various types of electrolytic separation and high-speed electrolytic sterilization is basically composed of water components and contaminants because it contains little bacteria and oil components are removed. Such a water component-based treatment liquid is preferably heated directly by the heater 13 while being fed through the water feed pipe 16, and the treated water is heated to 110 ° C. to 160 ° C. to reach the spray unit 22. Sent. On the other hand, heat and air are also sent from the supercharger 23 to the spray unit 22 through the air and the heat transfer pipe 14. Due to the heat force blown from the spray unit 22 to the first air supply pipe 17, the treated water is vaporized in the ascending process, and impurities are dried. The treated water that has been further vaporized and dried by the traversing second air pipe 18 and the descending third air pipe 19 reaches the final air pipe 20. Further, the dust collector 27 having a caster 21 separates and collects impurities in the gas by electrostatic dust collection, and the air and water vapor are discharged into the atmosphere from the exhaust discharge pipe 31 as clean exhaust. The

FIG. 2 is subjected to electrolytic separation treatment by the electrolytic separation electrode 3 mainly in an electrolytic oil / water separator, electrolytic separator, or high-speed electrolytic sterilizer according to the present invention.
Oil / water is separated by the electrolytic separation electrode 3 and is generally cleanly separated into three layers of an oil liquid layer, a contaminant layer and a water component layer. The waste liquid is stored in a form in which the oil component floats above the water component. Since the metal ions and the oil component in the waste liquid do not stick to each other, it is advantageous in terms of treatment that the metal ions do not stick to the oil component floating upward.
Since at least the uppermost oil component is recovered from the waste liquid separated into three layers by the electrolytic separation electrode 2 to the oil liquid recovery layer 7 through the oil feed pipe 6, and can be traded valuable by reprocessing as desired. It can greatly contribute to resource saving. At that time, it does not prevent the collection of foreign matters in parallel. It is still a powerful technique to collect impurities in parallel with oil components. If a method of recovering the oil liquid layer and the contaminant layer generated in the separation tank after electrolytic separation of the treated water or high-speed electrolytic sterilization is adopted, the water component can be reused as long as the method is applicable.

The treatment liquid from which the oil component has been recovered in the electrolytic oil / water separation tank 1 is sent to the subsequent electrolytic oil / water separation tank 1 and can undergo further electrolytic oil / water separation, electrolytic separation, and high-speed electrolytic sterilization as necessary. In the example of FIG. 2, the high-speed electrolytic sterilization device 9 is provided in the next stage, and the treatment liquid sent from the electrolytic oil / water separation tank 1 to the high-speed electrolytic sterilization device 9 can be subjected to further electrolytic treatment. The high-speed electrolytic sterilization apparatus 9 in which the caster 21 is installed in the lower part and can be unitized can perform high-speed electrolytic sterilization by the electrolytic separation electrode 3. The treatment liquid that has been sterilized and electrolytically separated by the high-speed electrolysis sterilizer 9 further separates the oil liquid and impurities, and then separates the separated oil liquid and impurities from the oil liquid and the impurities collection tube 12 into the oil liquid and impurities. The water components and impurities contained in the material recovery tank 10 are heated in a clean state that has been subjected to electrolytic sterilization through the heated water supply pipe 24 and sent to the spray unit 22.

The waste liquid after various types of electrolytic separation and high-speed electrolytic sterilization is low in bacteria content and oil components are removed, so it basically consists of water and impurities. Such a treatment liquid mainly composed of a water component is heated while being fed through the heated water feed pipe 24 and sent to the spray unit 22. On the other hand, heat and air are also sent from the supercharger 23 to the spray unit 22. The treated water sprayed from the spray unit 22 into the spray tower 25 is vaporized in the descending process, and impurities are dried. The treatment liquid in a gaseous state containing the dried fine particles is sent to the electrostatic precipitator 27. At least a pair of DC electrodes 28 are grounded in the electric dust collection tower 27, and a DC power supply is applied from a DC power supply 30 to a dust collection electrode 29 provided between the DC electrodes 28. The powder is adsorbed by the dust collecting electrode 29 and collected. The gas having the powder adsorbed by the dust collecting electrode 29 is released into the atmosphere from the exhaust discharge pipe 31 as clean exhaust. The powder adsorbed and collected by the dust collecting electrode 29 is reused as a useful material, or reduced in volume as an industrial waste and directed to disposal.

FIG. 3 shows a front view of a circular electrode used for electrolytic separation of the present application. A positive terminal 41 or a negative terminal 42 is attached to each of the circular electrodes 40 used for electrolytic separation, and the positive terminals 41 and the negative terminals 42 are secured to each other by wiring. As shown in FIG. 2, the circular electrode 40 used for electrolytic separation is supplied with power from an AC / DC high-speed electrolytic power source 8. Regardless of whether the electrode used is a circular electrode or a square electrode, the surface of the plate electrode is rough or lacks smoothness, so that the electrolysis efficiency is greatly impaired.

FIG. 4 shows a side view of a circular electrode used for electrolytic separation of the present application. Negative electrodes 42a to 42n are provided between the positive electrodes 41a to 41n so as to face each other. Since the electrolytic electrode is composed of 41a to 41n and 42a to 42n, it is possible to appropriately cope with the capacity of the electrolytic processing apparatus, the type of the processing solution, and the like by adjusting the number of units of the electrolytic electrode.

FIG. 5 is a perspective view for explaining a circular electrode used for electrolytic separation of the present application. A unitized electrolytic electrode is prepared in this way, and as shown in FIGS. 1 and 2, the electrolysis apparatus of the present invention is provided with an individual processing apparatus for processing waste liquids to be processed in multiple stages. Therefore, the processing apparatus can be freely selected in accordance with the scale and capacity of each processing or processing apparatus, and the range of purification of the processing liquid can be widened.

As mentioned above, although the Example of this invention has been described, since the earth environment improvement apparatus of this invention performs the water treatment after performing the oil-water separation of the waste liquid first by the electrolytic oil-water separation, from the industrial factory etc. It can be applied to waste liquids such as cutting and polishing, and waste liquid treatment at plating factories, food factories, etc., and can be expected to be widely accepted by industry.
The present invention can be implemented in various other forms without departing from the spirit and main features thereof. For this reason, the above-described embodiments are merely examples, and the present invention should not be construed in a limited manner.

DESCRIPTION OF SYMBOLS 1 Electrolytic oil water separation tank 2 Electrolytic separation electrode tank 3 Electrolytic separation electrode 4 Waste liquid tank 5 Liquid feed pump 6 Oil feed pipe
7 Oil / Liquid Recovery Tank 8 AC / DC High-Speed Electrolytic Power Supply 9 High-Speed Electrolysis Sterilizer 10 Oil / Solids Recovery Tank 11 Storage Tank
12 Oil / Contaminant Recovery Pipe 13 Heater 14 Air / Heat Source Transfer Pipe 15 First Liquid Supply Pipe 15-1 Second Liquid Supply Pipe 16 Water Supply Pipe 17 First Air Supply Pipe 18 Second Air Supply Pipe 19 Third Air Supply Pipe 20 Final air supply pipe 21 Caster 22 Spray unit 23 Supercharger 24 Heating water supply pipe 25 Spray tower 27 Electric dust collection tower 28 DC electrode 29 Dust collection electrode 30 DC electrode power supply 31 Exhaust discharge pipe 40 Circular electrodes 40a-n Individual circular electrode group 41 Positive terminals 41a-n Individual positive terminals 42 Negative terminals 42a-n Individual negative terminals

Claims (6)

  In a global environment improvement device that detoxifies waste liquid requiring treatment, it is equipped with an individual treatment device that treats waste liquid to be treated in multiple stages, and the individual device arranged on the front side demonstrates the function of separating the waste liquid requiring treatment into oil and water. And a special electrode is a plurality of plate electrodes arranged opposite to each other, and the power supplied to the special electrode is a high-speed electrolytic power supply for both AC and DC. To improve the global environment.   The global environment improving apparatus according to claim 1, wherein a front shape of the plate-like electrode is a substantially square shape.   2. The global environment improving apparatus according to claim 1, wherein a front shape of the plate-like electrode is substantially circular.   The oil component after the said oil-water separation is collect | recovered from the said liquid electrolysis processing apparatus, The global environment improvement apparatus described in Claims 1-3 characterized by the above-mentioned.   5. The global environment improving apparatus according to claim 1, wherein the water component after the oil / water separation is further subjected to a sterilization treatment by a high-speed electrolytic sterilization apparatus. The water component after the oil-water separation is sent to a spray tower to which air and a heat source are applied by a supercharger and spray-dried, and then the electric component having a dust collection electrode including an ionization electrode to which a DC power source is applied. 6. The global environment improving apparatus according to claim 1, wherein particles are adsorbed by a dust collector and then released as air clean exhaust.