CN112093999A - Treatment method of oil stain wastewater - Google Patents
Treatment method of oil stain wastewater Download PDFInfo
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- CN112093999A CN112093999A CN202011107050.1A CN202011107050A CN112093999A CN 112093999 A CN112093999 A CN 112093999A CN 202011107050 A CN202011107050 A CN 202011107050A CN 112093999 A CN112093999 A CN 112093999A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002351 wastewater Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 239000010865 sewage Substances 0.000 claims abstract description 106
- 244000005700 microbiome Species 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims description 57
- 238000009434 installation Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000011109 contamination Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 14
- 238000005192 partition Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000012258 culturing Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- 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
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/028—Tortuous
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/343—Biological treatment of water, waste water, or sewage characterised by the microorganisms used for digestion of grease, fat, oil
Abstract
A method for treating oil stain wastewater comprises the following steps of conveying sewage into a water inlet cavity; the sewage enters the filter cavity to filter oil stains; sewage enters the water outlet cavity from the filter cavity; sewage flows along a U-shaped path in the treatment tank, the sewage enters the treatment tank from a sewage inlet on one side of the treatment tank, and the treated sewage is discharged out of the treatment tank from a sewage outlet on the same side of the sewage inlet; the sewage sequentially passes through N oil stain filter chambers of the filter chambers, an oil stain filter filters oil stains in the sewage, and the oil stains intercepted on an oil stain filter screen are decomposed by microorganisms; the guide plate enables the filtered water entering the water outlet cavity to flow up and down in an S shape; the filtered water which flows from one end of the water outlet cavity up and down through the S shape and reaches the other end of the water outlet cavity is discharged out of the treatment pool from the water outlet cavity. The invention has the advantages that: the sewage is unpowered to filter and treat the oil stains in the sewage, the flow path of the sewage in the treatment tank is prolonged, and the sewage passes through more treatment processes in the same treatment space.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a method for treating oil stain wastewater in restaurant sewage.
Background
The prior Chinese patent application with the application number of CN201710457124.6 named as catering sewage treatment equipment and a treatment method thereof discloses catering sewage treatment equipment and a treatment method thereof, and the catering sewage treatment equipment comprises a box body internally partitioned into a deslagging area, a precipitation area, an oil-water separation area and a pollution discharge area, wherein the oil-water separation area is internally partitioned by a partition plate into an outer oil-water separation area and an inner oil-water separation area, the top of the outer oil-water separation area is provided with a first oil collecting chamber, and the first oil collecting chamber is connected with an oil discharge pipe; the inner oil-water separation area is positioned in the outer oil-water separation area, the top of the inner oil-water separation area is provided with a second oil collection chamber communicated with the first oil collection chamber, the inner oil-water separation area is provided with an inlet for sewage subjected to oil-water separation in the outer oil-water separation area to enter the inner oil-water separation area, and an outlet communicated with the sewage discharge area, a row of flow guide plates for damping and flow guide of water flow are arranged between the inlet and the outlet in the inner oil-water separation area, the flow guide plates are vertically arranged, and the top of a flow guide area formed by the flow guide plates is open and communicated with the second oil. Through above-mentioned structure, realize secondary oil water separation operation, improve sewage treatment effect. However, the sewage of the apparatus enters from one end and leaves from the other end, the residence time in the apparatus is short, the sewage treatment is insufficient, and therefore the structure of the apparatus needs to be further improved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a treatment method of oil stain wastewater, which is small in occupied space, good in sewage treatment effect and convenient for cleaning the treated oil stains, for the treatment device of the oil stain wastewater aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method for treating the oil stain wastewater comprises the following steps,
firstly, conveying sewage into a water inlet cavity of a treatment tank;
secondly, sewage enters the filter cavity from the water inlet cavity to filter oil stains;
thirdly, the sewage after oil contamination filtration enters the water outlet cavity from the filter cavity;
the method is characterized in that: sewage flows along a U-shaped path in the treatment tank, the sewage enters the treatment tank from a sewage inlet on one side of the treatment tank, and the sewage treated by the treatment tank is discharged out of the treatment tank from a sewage outlet on the same side of the sewage inlet;
in the second step, sewage enters the upper cavity of the filter cavity from the lower part of the water inlet cavity through the communicating pipe, the sewage sequentially passes through N oil stain filter cavities of the filter cavity, an oil stain filter positioned in each oil stain filter cavity filters oil stains in the sewage, the oil stains intercepted on an oil stain filter screen of the oil stain filter are decomposed by microorganisms in the oil stain filter, and N is a natural number greater than 1;
in the third step, the guide plate positioned in the water outlet cavity enables the filtered water entering the water outlet cavity to flow up and down in an S shape, and the particulate matter precipitate in the water is accumulated in the water outlet cavity;
the treatment method also comprises a fourth step of discharging the filtered water which flows from one end of the water outlet cavity up and down in the S shape and reaches the other end of the water outlet cavity out of the treatment pool from the water outlet cavity to finish the filtering operation of the sewage.
As an improvement, the filter chamber divide into a N greasy dirt filter chamber through the baffle, greasy dirt filter includes filter housing's bottom is provided with sewage and advances the pipe, filter housing's inner chamber advances the pipe through sewage and is linked together with the greasy dirt filter chamber that corresponds, the filtrate export sets up on filter housing's lateral wall, the filtrate export is linked together with filter housing's inner chamber, the greasy dirt filter screen is filled in filter housing's inner chamber, the microorganism is attached to on the greasy dirt filter screen.
The improved oil filter is characterized in that a shaping frame body is arranged in an inner cavity of the filter shell, and the oil stain filter screen is connected with the shaping frame body.
As the improvement, be provided with the collecting pit that can collect the greasy dirt in the junction of intake antrum and filter chamber, the bottom of collecting pit is connected on the baffle, the open-top of collecting pit and baffle top surface looks parallel and level or be less than baffle top surface 0.01 ~ 1.2 mm.
In a further improvement, a cleaning bucket which can be taken out from the collecting tank for treatment after the collecting tank is full of oil dirt is detachably arranged in the collecting tank.
As an improvement, in the third step, the sewage entering the water outlet cavity from the filter cavity firstly passes through a residue filter to filter residues in the sewage, the residue filter is arranged at the joint of the water outlet cavity and the filter cavity, the residue filter comprises a shell and a filter body, a grid-shaped filter port is arranged on the side wall of the filter body, a bottom outlet is arranged at the bottom of the filter body, the filter port is communicated with the bottom outlet, an installation cavity capable of installing the filter body is arranged at the top of the shell, a cavity opening is arranged at the bottom of the installation cavity, the bottom surface of the filter body covers the cavity opening, the bottom outlet is communicated with the cavity opening, a water inlet is arranged on the side wall of the upper part of the shell, a water outlet is arranged on the side wall of the lower part of the shell, the water outlet is communicated with the bottom outlet, the sewage entering the installation cavity opening from the bottom outlet after passing through the filter port is filtered, and finally enters the corresponding residue through the In the filter chamber.
The improved filtering plate is characterized in that the filtering body is formed by sequentially superposing filtering plate bodies up and down, plate body bulges which enable adjacent filtering plate bodies to be spaced from each other are distributed on the edge of each filtering plate body, the bottom surface of each upper filtering plate body is attached to the plate body bulges of the lower filtering plate body, a plate body through hole is formed in each filtering plate body, sewage entering the filtering body from the space between the adjacent filtering plate bodies flows out of the filtering body from the plate body through hole, a through hole baffle is arranged on the filtering plate body corresponding to the hole edge of each plate body through hole, and a plate body cover plate is covered on the top surface of the filtering plate body on the uppermost layer.
In a further improvement, connecting lugs are arranged on the side parts of each filtering plate body and the plate body cover plate, connecting holes are formed in the connecting lugs, and the connecting lugs are connected in series through bolts.
The filter body is further improved, and a limiting convex part which can be contacted with the connecting lug in a propping manner to prevent the filter body from further rotating is arranged on the inner wall of the mounting cavity.
As an improvement, the communicating pipe is a three-way pipe, the bottom opening of the three-way pipe is communicated with the bottom cavity of the water inlet cavity, the side opening of the three-way pipe is communicated with the upper cavity of the filter cavity, the top opening of the three-way pipe is communicated with the top cavity of the water inlet cavity, two three-way pipes are arranged in the water inlet cavity, the two three-way pipes are arranged at intervals, the number of the oil stain filters in each filter cavity is two, and the positions of the two oil stain filters correspond to the positions of the side openings of the two three-way pipes respectively.
Compared with the prior art, the invention has the advantages that: firstly, the oil stain filter can filter and treat oil stains in sewage, and microorganisms capable of degrading oil stains and residues are arranged in the oil stain filter, so that pollution-free treatment of the oil stains and the residues is realized, direct discharge of the oil stains in the sewage is reduced, and environmental protection is facilitated; the filtering cavity is divided into a plurality of oil stain filtering cavities by the partition plates, so that sewage can sequentially pass through the filtering cavity to realize multi-stage filtering of the sewage, and oil stains in the oil stain wastewater are fully filtered; the water treated by the filter cavity flows up and down in an S shape in the water outlet cavity, particulate matters, carried microorganisms and sediments in the water are accumulated in the water outlet cavity, and the filtered water is discharged out of the treatment tank from the other end of the water outlet cavity, so that the treatment of sewage is realized. Secondly, the water inlet cavity, the oil stain filtering cavity and the water outlet cavity are sequentially arranged in a U shape, so that oil stain wastewater enters and leaves from the same side of the treatment tank along the U-shaped route, the oil stain wastewater treatment process is increased through the ingenious structural design, the flow path of the sewage in the treatment tank is prolonged, the sewage passes through more treatment processes in the same treatment space, the sewage is fully treated, the content of residues and oil stains in the sewage is effectively reduced, and the aim of cleaning and discharging the sewage is fulfilled; thirdly, the processing parts of the device are all positioned in the processing pool, so that the integration degree is higher, the manufacture and the installation are very convenient, and the occupied space is smaller; the device does not need to increase a power source, realizes that sewage automatically flows into each cavity of the treatment tank by utilizing the self-weight of water and the liquid level balance principle, can realize unpowered sewage treatment, and has low sewage treatment cost; the device can further place the treatment pool underground, so that the occupied space can be further reduced. Finally, this device is provided with the waste oil and collects the chamber, can will gather in the waste oil of collecting the chamber through the automatic pump or through artifical convenient taking out, consequently, is particularly suitable for the domestic sewage treatment of residential area and other dense population regions.
Drawings
FIG. 1 is a perspective view of an apparatus embodying the present invention;
FIG. 2 is an exploded view of the structure of FIG. 1;
FIG. 3 is a top view of FIG. 2 with the closure panel removed;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 6 is a perspective view of another embodiment of the present invention with the closure flap removed;
FIG. 7 is a top view of FIG. 6;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;
FIG. 9 is a cross-sectional view taken along line D-D of FIG. 7;
FIG. 10 is an exploded view of the structure of FIG. 6;
FIG. 11 is a perspective view of the debris filter of FIG. 10;
FIG. 12 is an exploded view of the structure of FIG. 11;
fig. 13 is an exploded view of the structure of fig. 11 at another angle.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 13, the method for treating oil contaminated wastewater of the present embodiment includes the following steps,
firstly, conveying sewage into a water inlet cavity 11 of a treatment tank 1;
secondly, sewage enters the filter cavity from the water inlet cavity 11 to filter oil stains;
thirdly, the sewage after oil contamination filtration enters the water outlet cavity 12 from the filter cavity;
sewage flows along a U-shaped path in the treatment tank 1, the sewage enters the treatment tank 1 from a sewage inlet at one side of the treatment tank 1, and the sewage treated by the treatment tank 1 is discharged out of the treatment tank 1 from a sewage outlet at the same side of the sewage inlet;
in the second step, sewage enters the upper cavity of the filter cavity from the lower part of the water inlet cavity 11 through the communicating pipe 14, the sewage sequentially passes through the N oil stain filter cavities 13 of the filter cavity, the oil stain filter 2 positioned in each oil stain filter cavity 13 filters oil stains in the sewage, the oil stains intercepted on the oil stain filter screen 31 of the oil stain filter 3 are decomposed by microorganisms in the oil stain filter 3, and N is a natural number more than 1;
in the third step, the guide plate 121 in the water outlet cavity 12 causes the filtered water entering the water outlet cavity 12 to flow up and down in an S-shape, and the particulate matter precipitate in the water is accumulated in the water outlet cavity 12;
the treatment method also comprises a fourth step of discharging the filtered water which flows from one end of the water outlet cavity 12 up and down in an S shape and reaches the other end of the water outlet cavity 12 out of the treatment tank 1 from the water outlet cavity 12 to finish the filtering operation of the sewage.
The treatment device adopted by the method comprises a treatment tank 1 capable of treating sewage, and a sealing cover plate 18 is detachably arranged on the top opening of the treatment tank 1. The cavity of the treatment pool 1 is divided into a water inlet cavity 11, a water outlet cavity 12 and a filter cavity capable of filtering oil stains in sewage by a partition plate, the water inlet cavity 11 is communicated with a water inlet pipe, the water outlet cavity 12 is communicated with a water outlet pipe, a communicating pipe 14 is arranged in the water inlet cavity 11, the inlet of the communicating pipe 14 is communicated with the cavity at the bottom of the water inlet cavity 11, the outlet of the communicating pipe 14 is communicated with the cavity at the upper part of the filter cavity, the filter cavity is divided into 3 oil stain filter cavities 13 by the partition plate, an oil stain filter 3 is arranged in each oil stain filter cavity 13, microorganisms capable of decomposing oil stains are arranged in the inner cavity of each oil stain filter 3, the inner cavity is communicated with the corresponding oil stain filter cavity 13 by meshes distributed on an oil stain filter screen 31 of the oil stain filter 3, the inner cavity is communicated with the next oil stain filter cavity 13 by a filter liquid outlet of the oil stain, the guide plates 121 which can enable water in the water outlet cavity 12 to flow up and down in an S shape are arranged in the water outlet cavity 12 at intervals, the water inlet cavity 11, the 3 oil stain filtering cavities 13 and the water outlet cavity 12 are sequentially arranged in a U shape, and the water inlet pipe and the water outlet pipe are positioned on the same side of the treatment tank 1. The specific type of microorganism and the method of culturing in the lumen are well known in the art and will not be described in detail.
The oil stain filter 3 comprises a filter shell, a sewage inlet pipe is arranged at the bottom of the filter shell, the inner cavity of the filter shell is communicated with a corresponding oil stain filtering cavity 13 through the sewage inlet pipe, a filtrate outlet is arranged on the side wall of the filter shell and is communicated with the inner cavity of the filter shell, an oil stain filter screen 31 is filled in the inner cavity of the filter shell, and microorganisms are attached to the oil stain filter screen 31. A shaping frame body 32 is arranged in the inner cavity of the filter shell, and the oil stain filter screen 31 is connected with the shaping frame body 32. The top of the filter shell is provided with a top surface opening into which the oil stain filter screen 31 can be placed, and the top surface opening is detachably covered with a cover plate. The joint of the water inlet cavity 11 and the filter cavity is provided with a collecting tank 16 capable of collecting oil stains, the bottom of the collecting tank 16 is connected to the partition plate, and the top opening of the collecting tank 16 is flush with the top surface of the partition plate or is lower than the top surface of the partition plate by 0.01-1.2 mm. A cleaning bucket 17 is detachably provided in the collection tank 16, and when the collection tank is filled with the oil dirt, the cleaning bucket can be taken out from the collection tank 16 for treatment.
In the third step, the sewage entering the water outlet cavity 12 from the filter cavity firstly passes through the residue filter 2 to filter the residue in the sewage, the residue filter 2 is arranged at the joint of the water outlet cavity 12 and the filter cavity, the residue filter 2 comprises a shell 21 and a filter body 22, a grid-shaped filter opening 221 is arranged on the side wall of the filter body 22, a bottom outlet is arranged at the bottom of the filter body 22, the filter opening 221 is communicated with the bottom outlet, an installation cavity capable of installing the filter body 22 is arranged at the top of the shell 21, a cavity opening 211 is arranged at the bottom of the installation cavity, the bottom surface of the filter body 22 covers the cavity opening 211, the bottom outlet is communicated with the cavity opening 211, a water inlet 212 is arranged on the side wall of the upper part of the shell 21, a water outlet 213 is arranged on the side wall of the lower part of the shell 21, the water outlet 213 is communicated with the bottom outlet, the sewage entering the installation cavity opening 211 from the bottom outlet after being filtered by the filter opening 221 In the residue filter chamber 13. The filtering body 22 is formed by sequentially superposing filtering plate bodies up and down, plate body protrusions enabling adjacent filtering plate bodies to be spaced from each other are distributed on the edge of each filtering plate body, the bottom surface of each upper filtering plate body is attached to the plate body protrusions of the lower filtering plate bodies, each filtering plate body is provided with a plate body through hole 222, sewage entering the filtering body 22 from a gap between the adjacent filtering plate bodies flows out of the filtering body 22 from the plate body through hole 222, a through hole baffle 223 is arranged on the filtering plate body corresponding to the hole edge of each plate body through hole 222, and a plate body cover plate 23 is covered on the top surface of the filtering plate body on the uppermost layer. Connecting lugs 224 are provided on the side of each filter plate body and plate body cover plate 23, connecting holes are provided on the connecting lugs 224, and the connecting lugs 224 are connected in series by bolts. The inner wall of the mounting cavity is provided with a limit convex part 214 which can be contacted with the connecting lug 224 to prevent the filter body 22 from further rotating. The communicating pipe 14 is a three-way pipe, the bottom opening of the three-way pipe is communicated with the bottom cavity of the water inlet cavity 11, the side opening of the three-way pipe is communicated with the upper cavity of the filter cavity, the top opening of the three-way pipe is communicated with the top cavity of the water inlet cavity 11, two three-way pipes are arranged in the water inlet cavity 11, the two three-way pipes are arranged at intervals, the number of the oil stain filters 3 in each filter cavity is two, and the positions of the two oil stain filters 3 are respectively corresponding to the positions of the side openings of the two three-way.
The working principle is as follows: sewage enters the water inlet cavity from the water inlet pipe and is precipitated in the water inlet cavity through the residues of the communicating pipe part, the upper layer sewage with oil stains enters the filter cavity from the communicating pipe, and along with the rise of the water level, the sewage enters the inner cavity of the oil stain filter through the oil stain filter screen and the oil stains intercepted on the oil stain filter screen are decomposed and treated by microorganisms. The sewage treated by the oil stain filter removes oil stains in the water and enters the water outlet cavity, the guide plate in the water outlet cavity enables the water to flow up and down along the S shape, particles, microorganisms and sediments carried in the water body are filtered, and finally the treated filtered water leaves the treatment tank from the other end of the water outlet cavity to finish the whole water treatment process. Sewage enters and leaves from the same side of the treatment tank, so that the flow distance of the sewage with the same volume in the treatment tank is prolonged, and the sewage treatment is more sufficient.
Claims (10)
1. A method for treating oil stain wastewater comprises the following steps,
firstly, conveying sewage into a water inlet cavity (11) of a treatment tank (1);
secondly, sewage enters the filter cavity from the water inlet cavity (11) to filter oil stains;
thirdly, the sewage after oil contamination filtration enters the water outlet cavity (12) from the filter cavity;
the method is characterized in that: sewage flows along a U-shaped path in the treatment tank (1), the sewage enters the treatment tank (1) from a sewage inlet at one side of the treatment tank (1), and the sewage treated by the treatment tank (1) is discharged out of the treatment tank (1) from a sewage outlet at the same side of the sewage inlet;
in the second step, sewage enters the upper cavity of the filter cavity from the lower part of the water inlet cavity (11) through the communicating pipe (14), the sewage sequentially passes through N oil stain filter cavities (13) of the filter cavity, the oil stain filter (2) positioned in each oil stain filter cavity (13) filters oil stains in the sewage, the oil stains intercepted on an oil stain filter screen (31) of the oil stain filter (3) are decomposed through microorganisms in the oil stain filter (3), and N is a natural number larger than 1;
in the third step, the guide plate (121) positioned in the water outlet cavity (12) enables the filtered water entering the water outlet cavity (12) to flow up and down in an S shape, and the particulate matters in the water are accumulated in the water outlet cavity (12);
the treatment method also comprises a fourth step of discharging the filtered water which flows from one end of the water outlet cavity (12) up and down to the other end of the water outlet cavity (12) from the water outlet cavity (12) out of the treatment tank (1) to finish the filtering operation of the sewage.
2. The method for treating oil contaminated wastewater according to claim 1, wherein: the filter chamber divide into N greasy dirt filter chamber (13) through the baffle, greasy dirt filter (3) include filter housing's bottom is provided with sewage and advances the pipe, filter housing's inner chamber advances pipe and greasy dirt filter chamber (13) that correspond through sewage and is linked together, the filtrate export sets up on filter housing's lateral wall, the filtrate export is linked together with filter housing's inner chamber, greasy dirt filter screen (31) are filled in filter housing's inner chamber, the microorganism is attached to on greasy dirt filter screen (31).
3. The method for treating oil contaminated wastewater according to claim 2, wherein: a shaping frame body (32) is arranged in the inner cavity of the filter shell, and the oil stain filter screen (31) is connected with the shaping frame body (32).
4. A method for treating oily wastewater according to any one of claims 1 to 3, characterized in that: be provided with collecting pit (16) that can collect the greasy dirt in intake antrum (11) and the junction of filter chamber, the bottom of collecting pit (16) is connected on the baffle, the open-top of collecting pit (16) and baffle top surface looks parallel and level or be less than baffle top surface 0.01 ~ 1.2 mm.
5. The method for treating oil contaminated wastewater according to claim 4, wherein: a cleaning bucket (17) which can be taken out from the collecting tank (16) for treatment after the collecting tank (16) is full of oil dirt is detachably arranged in the collecting tank (16).
6. A method for treating oily wastewater according to any one of claims 1 to 3, characterized in that: in the third step, sewage entering the water outlet cavity (12) from the filtering cavity firstly passes through a residue filter (2) to filter residues in the sewage, the residue filter (2) is arranged at the joint of the water outlet cavity (12) and the filtering cavity, the residue filter (2) comprises a shell (21) and a filtering body (22), a grid-shaped filtering port (221) is arranged on the side wall of the filtering body (22), a bottom outlet is arranged at the bottom of the filtering body (22), the filtering port (221) is communicated with the bottom outlet, an installation cavity capable of installing the filtering body (22) is arranged at the top of the shell (21), a cavity opening (211) is arranged at the bottom of the installation cavity, the bottom surface of the filtering body (22) covers the cavity opening (211), the bottom outlet is communicated with the cavity opening (211), a water inlet (212) is arranged on the side wall of the upper part of the shell (21), the side wall of the lower part of the shell (21) is provided with a water outlet (213), the water outlet (213) is communicated with the bottom outlet, and sewage entering the installation cavity from the water inlet (212) enters the cavity opening (211) from the bottom outlet after being filtered by the filter opening (221) and finally enters the corresponding residue filter cavity (13) from the water outlet (213).
7. The method for treating oil contaminated wastewater according to claim 6, wherein: it forms to filter body (22) by filtering the plate body coincide from top to bottom in proper order filter the plate body arch that distributes on the border of the plate body and to enable adjacent filtering plate body alternate, go up the bottom surface laminating of filtering the plate body and filter the plate body arch of plate body under, be provided with plate body through-hole (222) on every filtering plate body, the sewage that gets into from the space between the adjacent filtering plate body and filter in body (22) flows out from plate body through-hole (222) and filters body (22), be provided with through-hole baffle (223) on the filtering plate body that corresponds with the hole border of every plate body through-hole (222), cover plate body apron (23) on the filtering plate body top surface of the superiors.
8. The method for treating oil contaminated wastewater according to claim 7, wherein: connecting lugs (224) are arranged on the side parts of each filtering plate body and the plate body cover plate (23), connecting holes are formed in the connecting lugs (224), and the connecting lugs (224) are connected in series through bolts.
9. The method for treating oil contaminated wastewater according to claim 8, wherein: and a limiting convex part (214) which can be contacted with the connecting lug (224) in a propping way to prevent the filter body (22) from further rotating is arranged on the inner wall of the mounting cavity.
10. A method for treating oily wastewater according to any one of claims 1 to 3, characterized in that: the communicating pipe (14) is a three-way pipe, the bottom opening of the three-way pipe is communicated with the bottom cavity of the water inlet cavity (11), the side opening of the three-way pipe is communicated with the upper cavity of the filter cavity, the top opening of the three-way pipe is communicated with the top cavity of the water inlet cavity (11), the number of the three-way pipes located in the water inlet cavity (11) is two, the two three-way pipes are arranged at intervals, the number of the oil stain filters (3) in each filter cavity is two, and the positions of the two oil stain filters (3) are respectively corresponding to the positions of the side openings of the two three-way pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011107050.1A CN112093999A (en) | 2020-10-16 | 2020-10-16 | Treatment method of oil stain wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011107050.1A CN112093999A (en) | 2020-10-16 | 2020-10-16 | Treatment method of oil stain wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN112093999A true CN112093999A (en) | 2020-12-18 |
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ID=73784334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011107050.1A Pending CN112093999A (en) | 2020-10-16 | 2020-10-16 | Treatment method of oil stain wastewater |
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|---|---|
| CN (1) | CN112093999A (en) |
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| CN115072831A (en) * | 2022-07-18 | 2022-09-20 | 王宏勋 | Environment-friendly and energy-saving treatment method for catering oily water |
| CN115140905A (en) * | 2022-08-04 | 2022-10-04 | 丽瑾(浙江)环保科技有限公司 | Energy-saving and environment-friendly sewage treatment method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115140905A (en) * | 2022-08-04 | 2022-10-04 | 丽瑾(浙江)环保科技有限公司 | Energy-saving and environment-friendly sewage treatment method |
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Effective date of registration: 20211012 Address after: 311201 room 1901, 19 / F, building 2, Purple Orange International Innovation Center, No. 39, Jincheng Road, Chengxiang street, Xiaoshan District, Hangzhou, Zhejiang Province Applicant after: Lijin (Zhejiang) Environmental Protection Technology Co.,Ltd. Address before: 315151 No. 42, group 2, xialujia, Dongxing village, Yinjiang Town, Yinzhou District, Ningbo City, Zhejiang Province Applicant before: Qiu Nanping |
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