CN217709022U - Device for reducing COD (chemical oxygen demand) and suspended matters of filter-pressing waste liquid effluent - Google Patents

Device for reducing COD (chemical oxygen demand) and suspended matters of filter-pressing waste liquid effluent Download PDF

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CN217709022U
CN217709022U CN202221851965.8U CN202221851965U CN217709022U CN 217709022 U CN217709022 U CN 217709022U CN 202221851965 U CN202221851965 U CN 202221851965U CN 217709022 U CN217709022 U CN 217709022U
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tank
sludge
pipe
contact oxidation
filling frame
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CN202221851965.8U
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董凯
冯琰
王艺澄
刘传君
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Baotou Meike Silicon Energy Co Ltd
Jiangsu Meike Solar Technology Co Ltd
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Baotou Meike Silicon Energy Co Ltd
Jiangsu Meike Solar Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

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Abstract

The utility model discloses a device for reducing COD and suspended matters in filter-pressing waste liquid effluent, which comprises a wastewater treatment device connected between a middle water tank (1) and a secondary sedimentation tank (2), and comprises a UASB tank (3), a primary contact oxidation tank (4), a hydrolytic acidification tank (5) and a secondary contact oxidation tank (6) which are connected with each other; the UASB pool (3) is connected with a pulse water distributor (7) and an internal circulation device (9); a second filling frame (13), a plug flow stirrer (14) and a first aeration device (15) are arranged in the primary contact oxidation tank (4); a third filling frame (17) is arranged in the hydrolysis acidification tank (5); a fourth filling frame (20) and a second aeration device (21) are arranged in the second-stage contact oxidation tank (6), and the first aeration device and the second aeration device are connected with a blower room (23). The utility model has the advantages that promote muddy water mixing effect, improve equipment life and waste water treatment effect make its discharge to reach standard.

Description

Device for reducing COD (chemical oxygen demand) and suspended matters of filter-pressing waste liquid effluent
Technical Field
The utility model relates to a photovoltaic manufacturing technology field especially relates to a device for reducing filter-pressing waste liquid goes out water COD and suspended solid.
Background
At present, because of aging of a filter-pressing waste liquid treatment system, a plurality of key parts are damaged, collapsed and blocked, so that the operation effect is deteriorated, the effluent COD (chemical oxygen demand) and suspended matter indexes are higher, and the filter-pressing waste liquid treatment system is mainly represented in the following aspects:
firstly, the physicochemical treatment effect is unstable, so that a lot of silicon carbide enters a biochemical system, the silicon carbide can destroy zoogloea of sludge in the biochemical system, the sludge poisoning becomes dispersed, no colloid can be formed, organic matters can not be adsorbed, and finally, the treatment efficiency is reduced sharply, and irreversible results are caused;
secondly, the UASB anaerobic tank has low treatment efficiency, sewage cannot be effectively mixed with sludge, although the UASB anaerobic tank is provided with a pulse water distributor, most of perforated pipes at the bottom are blocked after running for a long time, the function of full mixing cannot be exerted, and meanwhile, a three-phase separator is seriously damaged, so that the effect of gas-water-liquid separation cannot be achieved;
thirdly, the filler of the first-stage aerobic pool and the filler of the second-stage aerobic pool are invalid, the filler support collapses due to long-term corrosion, the aeration pipe is aged, and the expected effect on waste liquid treatment cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is exactly in order to solve the problem that filter-pressing waste liquid goes out water COD and suspended solid index height, equipment treatment effeciency low, the effect is poor, provides a device for reducing filter-pressing waste liquid goes out water COD and suspended solid, promotes the muddy water mixed effect of water-locator, improve equipment life, and the normal operating of maintenance equipment improves the treatment effeciency and the effect that the waste liquid goes out water, makes its discharge to reach standard.
In order to realize the purpose, the utility model adopts the following technical scheme:
a device for reducing COD and suspended matters in filter-pressing waste liquid effluent comprises a wastewater treatment device connected between an intermediate water tank and a secondary sedimentation tank, wherein the wastewater treatment device comprises a UASB (upflow anaerobic sludge blanket) tank, a primary contact oxidation tank, a hydrolysis acidification tank and a secondary contact oxidation tank which are sequentially connected;
the top of the UASB tank is connected with a pulse water distributor, the water outlet of the middle tank is connected with the pulse water distributor through a first pipeline, and an internal circulation device is arranged in the pulse water distributor and is used for improving the mixing effect of mud and water and preventing the water distributor from being blocked;
a steel three-phase separator and a first filling frame are sequentially connected in the UASB tank from top to bottom, anaerobic filling is arranged on the first filling frame, and a first sludge outlet pipe is connected at the bottom of the UASB tank and used for discharging most of sludge after wastewater treatment;
a second filling frame and a plug flow stirrer are arranged in the primary contact oxidation tank, a first aeration device is arranged below the second filling frame, and the bottom of the primary contact oxidation tank is connected with a second sludge outlet pipe;
a third filling frame is arranged in the hydrolysis acidification tank, the bottom of the hydrolysis acidification tank is connected with a third sludge outlet pipe, and the first sludge outlet pipe, the second sludge outlet pipe and the third sludge outlet pipe are all connected with a sludge outlet main pipe;
a fourth filling frame is arranged in the secondary contact oxidation tank, a second aeration device is arranged below the fourth filling frame, and the first aeration device and the second aeration device are connected with an external blower room through air pipes so as to provide air for the aeration device of the oxidation tank;
the water outlet of the secondary contact oxidation tank is connected with the secondary sedimentation tank, the sludge outlet of the secondary sedimentation tank is connected with a sludge return pipe, the sludge return pipe is connected with a sludge return pump, and the sludge return pipe is respectively connected with the pulse water distributor, the primary contact oxidation tank and the hydrolysis acidification tank through a first return branch pipe, a second return branch pipe and a third return branch pipe so as to realize sludge return.
Furthermore, the internal circulation device comprises a circulation box body, the top of the circulation box body is provided with an air outlet, the side wall of the bottom of the circulation box body is provided with a water inlet connected with the first pipeline, a baffle plate facing the water inlet is arranged in the circulation box body, an inverted U-shaped circulation pipe is further arranged in the circulation box body, the middle of the circulation pipe is connected with a vertical downward water outlet pipe, and the water outlet pipe penetrates out of the circulation box body downwards and is connected with the pulse water distributor.
Furthermore, a bedroom centrifugal sewage pump and a first electromagnetic flow meter are connected to the first pipeline.
Furthermore, the first aeration device and the second aeration device respectively comprise an aeration head and an aeration pipeline which are matched with each other, and the aeration heads are membrane type high-efficiency aerators.
Furthermore, a second electromagnetic flowmeter is connected to the sludge return pipe.
Compared with the prior art, the utility model discloses a technical scheme's advantage specifically lies in:
(1) The UASB pool of the utility model adopts the steel three-phase separator, is not easy to collapse and deform, has long service life after being well preserved, and improves the separation effect of water gas and liquid;
(2) An internal circulation device is additionally arranged in the pulse water distributor, and a water distribution pipeline is additionally arranged, so that the mud-water mixing effect and the treatment efficiency are correspondingly improved;
(3) The utility model discloses reform transform hydrolysis-acidification pool into contact oxidation pond, increase filler and aeration head to adopt solitary fan air feed, nevertheless remain hydrolysis-acidification's function simultaneously, close the fan air feed, open underwater impeller, then become hydrolysis-acidification pool, both can switch over the operation, have increased the good oxygen dwell time and the treatment effeciency of sewage.
Drawings
FIG. 1 is a structural diagram of the device for reducing COD and suspended solids in the effluent of the filter-pressing waste liquid of the utility model;
FIG. 2 is a schematic view of the internal circulation device of the present invention;
FIG. 3 is a flow chart of the wastewater treatment process of the present invention.
Detailed Description
Example 1
In order to make the present invention more clear, the following description of the device for reducing COD and suspended solids of the filter pressing waste liquid according to the present invention is made with reference to the accompanying drawings, and the embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.
Referring to fig. 1 and 3, a device for reducing COD and suspended solids in the effluent of filter-pressing waste liquid comprises a wastewater treatment device connected between an intermediate water tank 1 and a secondary sedimentation tank 2, and is characterized in that:
the wastewater treatment device comprises a UASB (upflow anaerobic sludge Blanket) tank 3, a primary contact oxidation tank 4, a hydrolytic acidification tank 5 and a secondary contact oxidation tank 6 which are connected in sequence;
referring to fig. 1 and 2, the UASB tank 3 is connected to a pulse water distributor 7 at the top, the water outlet of the intermediate tank 1 is connected to the pulse water distributor 7 through a first pipe 8, and the first pipe 8 is connected to a bedroom centrifugal sewage pump 29 and a first electromagnetic flow meter 30;
an internal circulation device 9 is arranged in the pulse water distributor 7, the internal circulation device 9 comprises a circulation box body 91, an air outlet 92 is arranged at the top of the circulation box body 91, a water inlet 93 connected with the first pipeline 8 is arranged on the side wall of the bottom of the circulation box body 91, a baffle 94 with one surface facing the water inlet 93 is arranged in the circulation box body 91, an inverted U-shaped circulation pipe 95 is also arranged in the circulation box body 91, a vertically downward water outlet pipe 96 is connected to the middle part of the circulation pipe 95, and the water outlet pipe 96 penetrates out of the circulation box body 91 downwards to be connected with the pulse water distributor 7 so as to improve the muddy water mixing effect and prevent the water distributor from being blocked;
a steel three-phase separator 10 and a first filling frame 11 are sequentially connected in the UASB tank 3 from top to bottom, anaerobic filling is arranged on the first filling frame 11, and a first sludge outlet pipe 12 is connected at the bottom of the UASB tank 3 and used for discharging most of sludge after wastewater treatment;
a second filling frame 13 and a plug flow stirrer 14 are arranged in the primary contact oxidation tank 4, a first aeration device 15 is arranged below the second filling frame 13, and a second sludge outlet pipe 16 is connected to the bottom of the primary contact oxidation tank 4;
a third filling frame 17 is arranged in the hydrolysis acidification tank 5, the bottom of the hydrolysis acidification tank is connected with a third sludge outlet pipe 18, and the first sludge outlet pipe, the second sludge outlet pipe and the third sludge outlet pipe are all connected with a sludge outlet main pipe 19;
a fourth filling frame 20 is arranged in the secondary contact oxidation tank 6, a second aeration device 21 is arranged below the fourth filling frame 20, and the first aeration device and the second aeration device are both connected with an external blower room 23 through air pipes 22 so as to provide air for the aeration device of the oxidation tank;
the first aeration device 15 and the second aeration device 21 both comprise an aeration head and an aeration pipeline which are matched with each other, and the aeration head is a diaphragm type high-efficiency aerator;
the water outlet of the second-stage contact oxidation tank 6 is connected with the second sedimentation tank 2, the sludge outlet of the second sedimentation tank 2 is connected with a sludge return pipe 24, the sludge return pipe 24 is connected with a sludge return pump 25 and a second electromagnetic flowmeter 31, and the sludge return pipe 24 is respectively connected with the pulse water distributor 9, the first-stage contact oxidation tank 4 and the hydrolysis acidification tank 5 through a first return branch pipe 26, a second return branch pipe 27 and a third return branch pipe 28 so as to realize sludge return.
In this embodiment, the UASB pool is made of a reinforced concrete structure and divided into four groups, the process size of the UASB pool is 6.2 × 6.0 × 7.0m × 4, and the volume of the UASB pool is 1040m3The main equipment is as follows:
1) A three-phase separator: 4 sets of double-layer combined structures;
2) Anaerobic filler and filler support: 6.2 x 6.0 x 4.0m x 4 grid, total 595 m3；
3) An internal circulation system: 4 sets of 25m water distribution pipelines with 4 circulating pumps3The head is 32m, the power is 5.5kW, and the internal circulation pump electric control system is 1 set.
In the embodiment, the primary contact aerobic pool adopts a reinforced concrete structure, the process size is 6.2 x 3.5 x 6.0m x 6 grids, and the volume is 780m3The main equipment is as follows:
1) Packing and packing support: 6.2X 3.5X 4.0m X6 grids for a total of 520 m3；
2) An aeration head: each cell pool is provided with 60 membrane type high-efficiency aerators, 3/m3And a total of 360 sets of DN80 aeration main pipes are included.
In the embodiment, considering that hydrolytic acidification and contact oxidation can be switched to operate, the filling material and the aerated surface are actually installedThe distance between the accumulation and the original underwater impeller is 1.0 meter. The hydrolysis acidification pool adopts a reinforced concrete structure, the process size is 6.2 × 10.5 × 6.0m × 2 grids, and the pool volume is 780m3。
In the embodiment, the secondary contact aerobic pool adopts a reinforced concrete structure, the process size is (6.2 × 3.5 × 6.0 × 2) and the volume is 558m3The main equipment is as follows:
1) Packing and packing support: (6.2 x 3.5m +6.2 x 4.0 x 3.5 m) x 2 grids for a total of 320 m3；
2) An aeration head: each cell is provided with 140 membrane type high-efficiency aerators, 3/m3280 sets of aeration main pipes containing DN80 are counted.
The utility model discloses a device has improved muddy water mixing effect and waste water treatment efficiency greatly, has increased the good oxygen dwell time of sewage, has improved equipment life, maintains the normal operating of equipment, has reduced the content of waste liquid play water COD and suspended solid, makes its discharge to reach standard.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims (5)

1. The utility model provides a device for reducing filter-pressing waste liquid goes out water COD and suspended solid, is including connecting the effluent treatment plant between middle pond (1) and two heavy ponds (2), its characterized in that:
the wastewater treatment device comprises a UASB (upflow anaerobic sludge blanket) tank (3), a primary contact oxidation tank (4), a hydrolysis acidification tank (5) and a secondary contact oxidation tank (6) which are connected in sequence;
the top of the UASB tank (3) is connected with a pulse water distributor (7), the water outlet of the middle water tank (1) is connected with the pulse water distributor (7) through a first pipeline (8), and an internal circulation device (9) is arranged in the pulse water distributor (7);
a steel three-phase separator (10) and a first filling frame (11) are sequentially connected in the UASB tank (3) from top to bottom, anaerobic fillers are arranged on the first filling frame (11), and a first sludge outlet pipe (12) is connected at the bottom of the UASB tank (3);
a second filling frame (13) and a plug flow stirrer (14) are arranged in the primary contact oxidation tank (4), a first aeration device (15) is arranged below the second filling frame (13), and the bottom of the primary contact oxidation tank (4) is connected with a second sludge outlet pipe (16);
a third filling frame (17) is arranged in the hydrolysis acidification tank (5), the bottom of the hydrolysis acidification tank is connected with a third sludge outlet pipe (18), and the first sludge outlet pipe, the second sludge outlet pipe and the third sludge outlet pipe are all connected with a sludge outlet main pipe (19);
a fourth filling frame (20) is arranged in the secondary contact oxidation tank (6), a second aeration device (21) is arranged below the fourth filling frame (20), and the first aeration device and the second aeration device are both connected with an external blower room (23) through air pipes (22);
the water outlet of the second-stage contact oxidation tank (6) is connected with the second sedimentation tank (2), the sludge outlet of the second sedimentation tank (2) is connected with a sludge return pipe (24), the sludge return pipe (24) is connected with a sludge return pump (25), and the sludge return pump is respectively connected with the pulse water distributor (7), the first-stage contact oxidation tank (4) and the hydrolysis acidification tank (5) through a first return branch pipe (26), a second return branch pipe (27) and a third return branch pipe (28).
2. The device for reducing COD and suspended solids in the filter-pressing waste liquid effluent according to claim 1, characterized in that:
the internal circulation device (9) comprises a circulation box body (91), a gas outlet (92) is formed in the top of the circulation box body (91), a water inlet (93) connected with the first pipeline (8) is formed in the side wall of the bottom of the circulation box body (91), a baffle (94) facing the water inlet (93) is arranged in the circulation box body (91), an inverted U-shaped circulation pipe (95) is further arranged in the circulation box body (91), a vertical downward water outlet pipe (96) is connected to the middle of the circulation pipe (95), and the water outlet pipe (96) penetrates out of the circulation box body (91) downwards and is connected with the pulse water distributor (7).
3. The device for reducing COD and suspended solids in the filter-press effluent according to claim 1 or 2, characterized in that:
the first pipeline (8) is connected with a bedroom centrifugal sewage pump (29) and a first electromagnetic flow meter (30).
4. The device for reducing COD and suspended solids in the effluent of pressure filtration waste liquid according to claim 1 or 2, wherein:
the first aeration device (15) and the second aeration device (21) respectively comprise an aeration head and an aeration pipeline which are matched with each other, and the aeration heads are diaphragm type high-efficiency aerators.
5. The device for reducing COD and suspended solids in the filter-press effluent according to claim 1 or 2, characterized in that:
the sludge return pipe (24) is connected with a second electromagnetic flowmeter (31).
CN202221851965.8U 2022-07-19 2022-07-19 Device for reducing COD (chemical oxygen demand) and suspended matters of filter-pressing waste liquid effluent Active CN217709022U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221851965.8U CN217709022U (en) 2022-07-19 2022-07-19 Device for reducing COD (chemical oxygen demand) and suspended matters of filter-pressing waste liquid effluent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221851965.8U CN217709022U (en) 2022-07-19 2022-07-19 Device for reducing COD (chemical oxygen demand) and suspended matters of filter-pressing waste liquid effluent

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CN217709022U true CN217709022U (en) 2022-11-01

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