JPS6048103A - Deoiling apparatus - Google Patents

Abstract

PURPOSE:To remove oil mixed with after and to remove its odor completely by separating oil from water by the specific gravity difference, treating the water with active carbon, and the further treating with calcined vermiculite. CONSTITUTION:When liquid to be treated is fed to a separation tank 1, the liquid is diverted by a straight flow preventing plate 32 to upper stream and lower stream as illustrated by arrow marks 16, 17, then forming an upper layer 18 and settled layer 19 by the difference of specific gravity. Separated liquid flows out of the tank at its almost middle part of the barrel through a first liquid feed pipe 3 as shown by an arrow mark 20 and is discharged to above an active carbon tank 4, and flows down through the active carbon tank 4 in the direction shown by an arrow 21, and fed further to the top of a vermiculite tank 8 through a second liquid feed pipe 7 as shown by an arrow 22, flows down through the vermiculite tank 8 in the direction shown by an arrow 23 and is purified almost completely. The purified liquid is discharged from a discharge pipe 11 as shown by an arrow 24.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil removal device for completely removing oil mixed into water and its odor.

Conventional deoiling equipment has been known to employ gravity separation, adsorption removal using zeolite, or filtration using a urako, but in either case, it was considered extremely difficult to completely remove and mask odors. For example, heavy oil is transported from an oil producing country to a consuming country in a huge tanker, but in the case of country H, the tank is filled with water on the outbound trip, and the heavy oil is fully loaded on the return trip. The water they transported was used for industrial purposes in oil-producing countries (for example, in agricultural areas), but it was said that it could not be used for drinking water because it was contaminated with oil.

However, according to this invention, the mixture of oil and water is first separated by specific gravity, then treated with activated carbon, and then treated with calcined vermiculite, so that treated water that has no oil odor and is suitable for drinking water can be continuously produced. They succeeded in obtaining the above-mentioned conventional problems.

That is, to explain this invention with reference to an embodiment, the specific gravity is 41
The liquid supply pipe 2) is overlapped to the middle part of one side wall of 1, and one end of the first liquid pipe 3 is connected to the middle part of the other side wall.
The other end faces the activated carbon tank 4-1. Said activated carbon tank 4
The interior is filled with activated carbon 5 to approximately 80%, and
A perforated plate 5 is placed above it. The base end of the second liquid feeding pipe 7 is connected to the lower part of one side wall of the activated carbon tank 4 (the side opposite to the inflow of the liquid to be treated), and the other end of the second liquid feeding pipe 7 is connected to the upper part of the one side wall of the pumice stone 4 [H3]. The pumice tank 8 is filled with calcined pumice 9 to about 80%, and a perforated plate 10 having numerous small holes is placed on the top surface. It connects the base ends of the discharge pipes 11, and is indicated by 32 in the figure.
33 is a direct current prevention plate installed between the supply pipe 2 and the first liquid sending pipe 3 in the specific gravity l1lIl tank 1 with a predetermined distance between the supply pipe 2 and the first liquid sending pipe 3; tube 11
This is a heavy-duty mesh board for solids that is installed opposite the frontage of the building. Instead of the mesh, a filter plate made of felt or other strings may be used. Furthermore, FIG. 2 shows another embodiment of the specific gravity separation tank, in which, compared to the specific gravity separation tank 1 shown in FIG. A partition wall '13 is provided vertically on the side of the first liquid feeding pipe 3, and a communication hole 14 is provided in the lower part of the partition wall 13.

In the embodiment shown in FIG. 1, for example, a fixed amount of the liquid to be treated is introduced from the supply pipe 2 as shown by the arrow 15.

Although the liquid to be treated is, for example, water transported by a tanker, crude oil mixed water was used in the experiment. The crude oil in this case is Arabian Heavy 55%, Umm Sheikh 21%
A mixture of 12% Hetakum, 10% Das Ramedium, and 2% Arabian Medium was mixed with fresh water at a ratio of 1:10.

When the mixed liquid is supplied into the separation tank 1, the DC prevention plate 3
2, the water is divided vertically as shown by arrows 16 and 17 and collected in the separation tank 1. Due to the difference in specific gravity, the lighter oil floats upwards to form the upper layer 18, while the heavier oil settles down to form a precipitate layer 19.

Thereupon, the liquid passes through the first liquid feeding pipe 3 from approximately the center as shown by the arrow 20 and is discharged upward l\ into the activated carbon tank 4 for a minute +i1.

In the above, if the tip of the first liquid feeding tube is set high as shown by arrow 25, the liquid level of the upper layer 18 will be raised as shown by arrow 29! ! 7
``tJ'', the upper layer oil can be discharged from the oil drain pipe 26 as shown by the arrow 27.In this respect, in the embodiment shown in FIG. 2, the same purpose can be achieved by closing the valve 28. .

In the figure, 30 and 31 are activated carbon (rl) and a waste pipe installed in the bottom corner of the pumice tank.

A perforated plate 6 is laid above the activated carbon tank 4, and
Since the treated water is stagnant at a certain depth (the water level is adjusted in this way), the inflowing to-be-treated liquid once stagnates evenly on the perforated plate, and then flows out in proportion to the amount of inflow. The liquid to be treated that has flowed into the upper part of the activated carbon tank 4 flows down inside the activated carbon tank as shown by the arrow 21 between the inflows, and during this period mainly BOD is adsorbed to become cleaner water, and the water flows through the second liquid pipe. 7 arrow indication 2
2, the pumice stone is supplied to the upper part of the pumice tank 8. In this case as well, since the fluid is supplied onto the perforated plate 10, there is no risk that the inflow speed or the like will disturb the flow conditions. There, while the liquid to be treated descends in the pumice tank as shown by the arrow 23, mainly COD is adsorbed and is almost completely purified.
It is expelled to the outside world as in 4.

The surface velocity of the liquid to be treated in the above is approximately 10 cn+/min, and the passage time through the activated carbon tank is preferably 1 minute or more. The water treated in this way contains solid foreign matter (BODlC).
OD) and oil odor are removed, but minerals and other dissolved mineral substances remain intact, so unlike distilled water, it retains many trace components and is suitable as drinking water.

As mentioned above, in this invention, almost no power is used, so it can be operated continuously for a long time without fear of failure. In addition, activated carbon can be recycled and used, and pumice stone can be used as a soil improvement material, so the running cost is extremely low, and it is extremely superior not only in performance but also economically as a device that continuously processes large amounts of oil and water mixtures. . In particular, the treated water of the present invention has various characteristics such as no oil odor and can be used as drinking water, and the device has no fear of failure and is extremely easy to maintain and manage.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view of another embodiment of the separation tank. 1... Specific gravity separation tank 2... Liquid to be treated supply pipe 3...
First liquid pipe 4...Activated carbon tank 5...Activated carbon 6.1
0... Perforated plate 7... Second liquid pipe 8... Pumice tank 9... Calcined pumice Patent applicant Shigeo Kuroiwa Agent Tadashi Suzuki 2 Figure procedural amendment document September 28, 1980 Patent Mr. Manabu Shiga, Director-General of the Agency,
1 1. Indication of the case Patent Application No. 145345 filed in 1982 2. Name of the invention: Deoiling device 3. Person making the amendment. Relationship with the case. Patent applicant name: Shigeo Kuroiwa 4. Agent: 160 Telephone (353) 3407 specification,
As shown in the Scope of Claims column, Detailed Description of the Invention column 6, and the contents of the amendment attached. However, no amendments have been made except for the matters to be amended. 7. List of attached documents (1) Correction 111d @ 1 Specification 1. Title of the invention Oil removal device 2. Claim 1 A liquid supply pipe to be treated is connected to the middle part of one side wall of the specific gravity separation tank, One end of the first liquid feeding pipe is connected to the middle part of the other side wall, and the first
The other end of the liquid supply pipe faces the activated carbon tank, and the other end of the pipe faces the top of the pumice tank.The pumice tank is filled with pumice, and the treated water is discharged to the lower side wall. A degreasing device 2 characterized in that an outlet pipe is connected to the degreasing device 3. The degreasing device 3 according to claim 1, in which both activated carbon and calcined pumice are made of coarse particles. The deoiling device 4 according to claim 1, in which the space between the perforated plate and the tank bottom is densely packed. Oil device 5 De-oil device 3 according to claim 1 for filling a pumice tank with fresh pumice, Detailed description of the invention The purpose of this invention is to completely remove oil mixed in water and its odor. The invention relates to a deoiling device and a drinking water production device that replenishes minerals. Conventional deoiling equipment has been known to employ gravity separation, adsorption removal using zeolite, or filtration using a filter medium, but in either case, it was considered extremely difficult to completely remove odors. For example, heavy oil is transported from oil-producing countries to consuming countries by giant tankers, but in the case of eight countries, water is put into the tank on the outward trip, and the heavy oil is fully loaded on the return trip. is used for industrial water in oil-producing countries (for example WAm in agricultural land), but it was considered that it could not be used for drinking water because it was contaminated with oil.However, according to this invention, oil and water can be combined. The mixture was first subjected to specific gravity separation, then treated with activated carbon, and then treated with calcined pumice, so we succeeded in continuously obtaining treated water that had no oily odor and was suitable for drinking water, which also served as a drinking water production device.) , the above-mentioned conventional problems have been solved. That is, to explain this invention with reference to an embodiment, specific gravity #l
A liquid supply pipe 2 to be treated is connected to the middle part of one side wall of the II tank 1, one end of the first liquid pipe 3 is connected to the middle part of the other side wall, and the other end of the first liquid pipe 3 is connected to the top of the activated carbon tank 4. Let's face it. Said activated carbon tank 4
The interior is filled with activated carbon 5 to approximately 80%, and
A perforated plate 5 is placed above it. The base end of the second liquid feeding pipe 7 is connected to the lower part of one side wall of the activated carbon tank 4 (the side opposite to the inflow of the liquid to be treated), and the other end of the second liquid feeding pipe 7 is connected to the upper part of the one side wall of the pumice stone tank 8. Link. Approximately 80 pieces of fired pumice 9 are placed in the pumice tank 8.
%, and a perforated plate 10 having numerous small holes is placed on its upper surface. In addition, the base end of the discharge pipe 11 is connected to the other side wall of the pumice tank 8, and 32 and 33 in the figure are located at a predetermined distance from the openings of the supply pipe 2 and the first liquid sending pipe 3 in the specific gravity separation tank 1. 34.35 is the second DC prevention plate installed to maintain the
This is a mesh plate for blocking solid matter, which is installed facing the openings of the liquid sending pipe 7 and the discharge pipe 11. M such as felt instead of mesh board
It is also possible to use a filter plate based on IIf. Furthermore, FIG. 2 shows another embodiment of the specific gravity separation tank, in which, compared to the specific gravity separation tank 1 shown in FIG. A partition wall 13 is provided vertically on the side of the first liquid feeding pipe 3, and a communication hole 14 is provided in the lower part of the partition wall 13. In the embodiment shown in FIG. 1, for example, a fixed amount of the liquid to be treated is introduced from the supply pipe 2 as shown by the arrow 15. Although the liquid to be treated is, for example, water transported by a tanker, crude oil mixed water was used in the experiment. The crude oil in this case is Arabian Heavy 55%, Umm Sheikh 2
A mixture of 1% Zakum, 12% Zakum, 10% Das Ramedium, and 2% Arabian Medium was mixed with fresh water at a ratio of 1:10. When the mixed liquid is supplied into the separation tank 1, the DC prevention plate 32
By dividing the flow up and down as shown in arrow 16.17,
It accumulates in llII4rJ1. Due to the difference in specific gravity, the lighter oil floats upward to form an upper layer 18, and the heavier oil settles downward to form a precipitate layer 19. Therefore, the separated liquid flows inside the first liquid feeding pipe 3 from approximately the center as shown by the arrow 2.
0 and is discharged upward into the activated carbon tank 4. If the tip position of the first liquid feeding pipe is raised as shown in the arrow 25 in a3 above, the liquid level in the upper layer 18 will rise as shown in the arrow 29, so that the upper layer will be lowered from the oil drain pipe 26 as shown in the arrow 27. Oil can be drained. In this regard, in the embodiment of FIG. 2, a similar purpose can be achieved by closing valve 28. In the figure, numerals 30 and 31 are the activated carbon tank and the JJI east pipe installed on the lower floor of the bottom of the pumice tank. A perforated plate 6 is laid above the activated carbon [4], and
Since the treated water is stagnant at a certain depth (the water level is adjusted in this way), the inflowing to-be-treated liquid once stagnates evenly on the perforated plate, and then sequentially flows out toward the inflow M. Said activated carbon 411
The liquid to be treated that has flowed into the upper part of No. 4 flows down inside the activated carbon tank as shown by arrow 21, and during this period, the BOD is mainly
is adsorbed, resulting in cleaner water, which is supplied from the second liquid supply pipe 7 to the upper part of the sea urchin pumice tank 8 as indicated by the arrow 22. In this case as well, since the fluid is supplied onto the perforated plate 10, there is no risk that the inflow speed or the like will disturb the flow conditions. There, while the liquid to be treated descends in the pumice tank as shown by the arrow 23, COD is mainly adsorbed and is almost completely purified.
It is discharged to the outside world as shown in 4. In addition, small amounts of minerals are replenished from the pumice in this pumice tank. The surface velocity of the liquid to be treated in the above is preferably around 10 cm/n+in, and the passage time through the activated carbon tank is preferably 1 minute or more. The water treated in this way contains solid foreign matter (BOD, CO
D) and oil odor are removed, but minerals and other dissolved mineral substances remain as is, and minerals are replenished from pumice, so unlike distilled water, it retains many trace components and is suitable as drinking water. ing. As described above, this invention uses almost no power, so it can be operated continuously for a long time without fear of failure. In addition, activated carbon can be recycled and used, and pumice stone can be used as a soil improvement material, so the running cost is extremely low, and it is extremely superior not only in performance but also economically as a device that continuously processes large amounts of oil and water mixtures. . In particular, the treated water of this invention has no oil odor and can be used for drinking water, and the equipment can be easily maintained and maintained without fear of failure.
The analysis result of the immersion water after immersion for a week was 2.8 potassium.
ma/(to), magnesium 4.9yn#). 4. Brief Description of the Drawings FIG. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view of another embodiment of the separation tank. 1... Specific gravity separation 112... Liquid to be treated supply pipe 3...
First liquid pipe 4...Activated carbon tank 5...Activated carbon 6.1
0... Perforated plate 7... Second liquid pipe 8... Pumice tank 9... Calcined pumice Patent applicant Shigeo Kuroiwa Agent Masatsugu Suzuki

Claims (1)

[Claims] 1. A liquid supply pipe to be treated is connected to the middle part of one side wall of the specific gravity separation tank, one end of the first liquid supply pipe is connected to the middle part of the other side wall, and the first liquid supply pipe is connected to the middle part of the other side wall.
The other end of the liquid feeding pipe faces above the activated carbon tank, the activated carbon tank is filled with activated carbon, one end of the second liquid feeding pipe is connected to the lower side wall of the tank, and the other end of the second liquid feeding pipe is connected to the bottom side wall of the tank. Activated carbon oil removal equipment 2 characterized in that the end faces the upper part of the vermiculite tank, the vermiculite tank is filled with calcined vermiculite, and a treated water discharge tube is connected to the lower side wall. : The deoiling device 3 according to claim 1, in which both the calcined vermiculite and the calcined vermiculite are made of coarse particles. The IItJ oil device 4 according to claim 1, which is filled with oil, and the oil removal device according to claim 1, in which the discharge end of the first liquid pipe can be raised and lowered.