CN115650518A - Energy-concerving and environment-protective chemical production sewage treatment plant - Google Patents
Energy-concerving and environment-protective chemical production sewage treatment plant Download PDFInfo
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- CN115650518A CN115650518A CN202211395041.6A CN202211395041A CN115650518A CN 115650518 A CN115650518 A CN 115650518A CN 202211395041 A CN202211395041 A CN 202211395041A CN 115650518 A CN115650518 A CN 115650518A
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- 239000010865 sewage Substances 0.000 title claims abstract description 80
- 238000012824 chemical production Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000004576 sand Substances 0.000 claims abstract description 67
- 238000004062 sedimentation Methods 0.000 claims abstract description 50
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 46
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 238000005406 washing Methods 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
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Abstract
The invention provides an energy-saving and environment-friendly chemical production sewage treatment device, and relates to the field of industrial sewage treatment. This energy-concerving and environment-protective chemical production sewage treatment plant, including deposiing the mechanism, carry out preliminary sedimentation to sewage, the aeration, flocculation and filtration, large granule impurity in the clearance sewage, active sand rate mechanism, carry out active sand filtration to sewage, hold back the tiny particle dirty matter etc. of aquatic, the mechanism of washing sand, wash active sand, make the sand bed be in better filtration state always, ultrafiltration water mechanism, carry out ultrafiltration net to sewage and filter, get rid of bacterium virus and the organic matter of aquatic, back flush mechanism, carry out inside washing to ultrafiltration water mechanism, energy-concerving and environment-protective. Through setting up precipitation mechanism, active sand rate mechanism, ultrafiltration mechanism sand washing mechanism and back flush mechanism and carry out many procedures to chemical wastewater and deposit, dirty interception and filtration, wash main filter unit simultaneously, make it use repeatedly, it is more energy-concerving and environment-protective.
Description
Technical Field
The invention relates to the field of industrial sewage treatment, in particular to an energy-saving and environment-friendly chemical production sewage treatment device.
Background
Industrial waste water including production waste water, production sewage and cooling water refers to waste water and waste liquid produced in the industrial production process, wherein the waste water contains industrial production materials, intermediate products, byproducts lost along with water and pollutants produced in the production process, the industrial waste water has various types and complex components, the waste water contains mercury, the heavy metal smelting industrial waste water contains various metals such as lead, cadmium and the like, the electroplating industrial waste water contains various heavy metals such as cyanide, chromium and the like, and the petroleum refining industrial waste water contains phenol.
At present, the treatment of industrial sewage is mostly filtered twice, once is primary flocculation and precipitation, once is filter screen filtration, and the method can be used for treating general industrial sewage, but in the face of chemical sewage, because some organic matters and bacteria viruses exist in water, whether the water quality after treatment can reach the discharge standard is difficult to guarantee, and the treatment process needs to repeatedly wash equipment and replace a filter structure, so that resources are wasted.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an energy-saving and environment-friendly chemical production sewage treatment device, which solves the problems of high treatment quality and resource waste of the existing treatment process for chemical sewage.
In order to achieve the purpose, the invention is realized by the following technical scheme: an energy-concerving and environment-protective chemical production sewage treatment plant includes:
the sedimentation mechanism is used for carrying out preliminary sedimentation, aeration, flocculation and filtration on the sewage generated in the chemical production process, and removing large-particle impurities in the sewage;
the active sand rate mechanism is used for filtering the precipitated sewage by active sand and intercepting small particles, dirty substances, floating objects and the like in the water;
the sand washing mechanism is used for washing the active sand in the active sand mechanism to ensure that the sand layer is always in a better filtering state;
the ultrafiltration mechanism is used for carrying out ultrafiltration net filtration on the sewage after the active sand treatment, removing bacterial viruses and organic matters in the water and improving the quality of the effluent;
and the back washing mechanism is used for cleaning the inside of the ultrafiltration water mechanism after water filtration, so that the ultrafiltration water mechanism can be repeatedly used, and is energy-saving and environment-friendly.
Preferably, the sedimentation mechanism includes the sedimentation tank, the top one end of sedimentation tank is equipped with the sewage input tube, the inside upper and lower wall of sedimentation tank is equipped with a plurality of different ripples folded plates that stagger each other, be equipped with two aerators on the diapire of sedimentation tank, one side that the top of sedimentation tank is close to the sewage input tube is equipped with the dosing tank, one side that the inside of sedimentation tank is close to the sewage input tube is installed and is stirred the stream ware, one side that the sewage input tube was kept away from at the interior top of sedimentation tank has erect the filter screen.
Preferably, the sedimentation tank further comprises a lift pump, a water pipe and a sewage pump, the lift pump is installed at one end, far away from the sewage input pipe, of the upper portion of the sedimentation tank, the output end of the lift pump extends to the interior of the active sand rate mechanism through the water pipe, and the sewage pump is further installed on the lower side of the front end of the sedimentation tank.
Preferably, the active sand rate mechanism comprises a tank body, a sewer pipe is arranged in the middle of the tank body, one side of the top of the sewer pipe is communicated with a water pipe, an inverted cone-shaped funnel is welded at the bottom end of the sewer pipe, an active sand bed is filled in the tank body, a water outlet pipe is arranged on one side of the upper portion of the tank body, and the tail end of the water outlet pipe extends into the ultra-filtration mechanism.
Preferably, the sand washing mechanism includes the center tube, the center tube sets up the inside of sewer and the bottom extends to the interior bottom of the jar body down, the top fixedly connected with barrel of center tube, steam generator is installed on the top of barrel, the bottom both sides of barrel all are equipped with the maze groove, the interior bottom both ends of barrel all are equipped with liquid level platform, one side the top intercommunication of liquid level platform has the end of first blow-off pipe and first blow-off pipe to run through the outer wall of the jar body and connect the input at the dredge pump.
Preferably, ultrafiltration water mechanism includes the casing, the inside of casing is equipped with a plurality of ultrafiltration pipes that are cyclic annular range, top one side of casing is equipped with the water purification output tube, the bottom of ultrafiltration pipe all is linked together through branch pipe and outlet pipe, the outlet pipe is located and installs the three-way valve on the inside one side external diameter of casing, the front end intercommunication mouth department of three-way valve installs the outer wall that the end of second blow off pipe and second blow off pipe runs through the casing and connects the input at the dredge pump.
Preferably, back flush mechanism includes the control box, the control box welding is in the bottom of casing, gear motor is installed to the bottom of control box, the gear motor drive end runs through control box outer wall and fixedly connected with master gear, inside still swing joint of control box has a plurality of pinions that are cyclic annular arrangement and the medial extremity of pinion and) links to each other with the master gear meshing, the terminal of the equal fixedly connected with slender pole in top middle part of pinion and slender pole all runs through the casing outer wall and extends to the inside of the ultrafiltration pipe that corresponds the side, all be equipped with the brush on the outer wall of slender pole.
Preferably, the back washing mechanism still includes the immersible pump, the immersible pump is installed in the interior top one side of casing, the output of immersible pump runs through the casing roof through the pipeline and fixed connection is in the one end of water ring, the bottom fixedly connected with of water ring is a plurality of venturi tubes that are the annular arrangement and the bottom of venturi tube all is connected at the top opening part that corresponds the side ultrafilter tube.
The working principle is as follows: the method comprises the steps of firstly leading chemical sewage into a sedimentation tank through a sewage input pipe, then opening a dosing tank to add a flocculating agent, simultaneously opening an agitator to stir the sewage to enable the sewage to be fully mixed with the flocculating agent, enabling flocculates in the sewage to continuously collide through a different wave baffle plate to form larger flocculates and settle at the bottom of the sedimentation tank, simultaneously aerating the sewage by an aerator to generate oxygen to effectively contact with water, providing oxygen under the condition that oxygen is continuously consumed by biological oxidation, keeping a certain dissolved oxygen concentration in the water, then utilizing a filter screen to filter the sewage and inputting the sewage into a tank body through a lifting pump, enabling the sewage to flow to the bottom of an active sand bed through a sewer pipe, enabling the water to be filtered to upwards flow through a sand layer, intercepting dirty substances in the active sand bed to enable the coming water to be purified and filtered, enabling the water after water purification to enter subsequent equipment for deep treatment along a water outlet pipe, enabling the water after the water is filtered by the active sand bed to enter an ultrafiltration pipe through the water outlet pipe, and finally filtering by an ultrafiltration membrane in the pipe to remove organic microorganisms, purified water and bacteria and viruses and finally discharging the purified water from an output pipe.
The invention provides an energy-saving and environment-friendly chemical production sewage treatment device. The method has the following beneficial effects:
1. the invention carries out multi-procedure sedimentation, dirt interception and filtration on the chemical sewage by arranging the sedimentation mechanism, the active sand rate mechanism and the ultrafiltration mechanism, can greatly improve the water quality after treatment and better meet the discharge standard of the sewage.
2. By arranging the sand washing mechanism and the back washing mechanism, the invention can clean the main filtering components in the active sand rate mechanism and the ultrafiltration mechanism, so that the active sand rate mechanism and the ultrafiltration mechanism can be used repeatedly, and the invention is more energy-saving and environment-friendly.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of the interior of a sedimentation tank according to the present invention;
FIG. 3 is an internal schematic view of the active sand rate mechanism of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is an internal schematic view of an ultrafiltration mechanism of the present invention;
fig. 6 is an enlarged view of fig. 5 at B.
Wherein, 1, a precipitation mechanism; 101. a sedimentation tank; 102. a sewage input pipe; 103. a different wave folded plate; 104. an aerator; 105. a dosing box; 106. a flow stirrer; 107. filtering with a screen; 108. a lift pump; 109. a water delivery pipe; 110. a sewage pump; 2. an active sand rate mechanism; 201. a tank body; 202. a sewer pipe; 203. an inverted cone-shaped funnel; 204. an active sand bed; 205. a water outlet pipe; 3. a sand washing mechanism; 301. a central tube; 302. a barrel; 303. a steam generator; 304. a labyrinth groove; 305. a liquid level table; 306. a first drain pipe; 4. an ultrafiltration water mechanism; 401. a housing; 402. an ultrafiltration tube; 403. a purified water output pipe; 404. a three-way valve; 405. a second sewage discharge pipe; 5. a backwashing mechanism; 501. a control box; 502. a reduction motor; 503. a main gear; 504. a pinion gear; 505. a thin rod; 506. a brush; 507. a submersible pump; 508. a water ring; 509. a venturi.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1 to 6, an embodiment of the present invention provides an energy-saving and environment-friendly chemical production sewage treatment apparatus, including:
the sedimentation mechanism 1 is used for carrying out preliminary sedimentation, aeration, flocculation and filtration on sewage generated in the chemical production process, large-particle impurities in the sewage are removed, the active sand rate mechanism 2 is used for carrying out active sand filtration on the sewage after sedimentation, small-particle dirty substances, floaters and the like in the water are intercepted, the sand washing mechanism 3 is used for cleaning active sand in the active sand mechanism, a sand layer is enabled to be in a better filtering state all the time, the ultrafiltration mechanism 4 is used for carrying out ultrafiltration net filtration on the sewage after active sand treatment, bacteria viruses and organic matters in the water are removed, the water quality is improved, and the back washing mechanism 5 is used for carrying out internal cleaning on the ultrafiltration mechanism after water filtration, so that the ultrafiltration mechanism can be used repeatedly, energy conservation and environmental protection.
In this embodiment, sedimentation mechanism 1 includes sedimentation tank 101, sedimentation tank 101's top one end is equipped with sewage input tube 102, sedimentation tank 101 inside upper and lower wall is equipped with a plurality of different ripples folded plates 103 that stagger each other, be equipped with two aerators 104 on sedimentation tank 101's the diapire, sedimentation tank 101's top is close to one side of sewage input tube 102 and is equipped with dosing tank 105, sedimentation tank 101's inside is close to one side of sewage input tube 102 and installs agitator 106, one side that sewage input tube 102 was kept away from to sedimentation tank 101's interior top has erect filter screen 107.
Specifically, lead to chemical industry sewage through sewage input tube 102 and enter into sedimentation tank 101 in, open the dosing tank 105 afterwards and add the flocculating agent, open simultaneously agitator 106 and stir sewage and make it and flocculating agent intensive mixing, the flocculation thing in the sewage can be through different ripples folded plate 103 constantly produce the collision thereby form bigger flocculation thing and deposit in sedimentation tank 101 bottom, aerator 104 is carried out the aeration to sewage simultaneously and is produced and make oxygen contact with water effectively, provide oxygen under the condition of biological oxidation constantly consumes oxygen, keep the certain dissolved oxygen concentration of aquatic, utilize later the filter screen 107 to filter the back and input to the jar internal through elevator pump 108.
Further, sedimentation tank 101 still includes elevator pump 108, raceway 109 and dredge pump 110, and elevator pump 108 installs the one end of keeping away from sewage input tube 102 on sedimentation tank 101 upper portion, and inside the output of elevator pump 108 extended to active sand rate mechanism 2 through raceway 109, dredge pump 110 was still installed to sedimentation tank 101's front end downside for the flocculation sewage of discharge sedimentation tank 101 bottom.
Further, the active sand rate mechanism 2 comprises a tank body 201, a downcomer 202 is installed in the middle of the tank body 201, one side of the top of the downcomer 202 is communicated with the water delivery pipe 109, an inverted cone-shaped funnel 203 is welded at the bottom end of the downcomer 202, an active sand bed 204 is filled in the tank body 201, a water outlet pipe 205 is arranged on one side of the upper portion of the tank body 201, and the tail end of the water outlet pipe 205 extends into the ultra-filtration water mechanism 4.
Specifically, sewage enters the bottom of the active sand bed 204 through the sewer pipe 202, water to be filtered flows upwards to pass through a sand layer, dirty substances are trapped in the active sand bed 204, so that the incoming water is purified and filtered, and the purified water enters subsequent equipment along the water outlet pipe 205 for advanced treatment.
Further, sand washing mechanism 3 includes center tube 301, center tube 301 sets up the inside and bottom of launching tube 202 and extends to the interior bottom of jar body 201, the top fixedly connected with barrel 302 of center tube 301, steam generator 303 is installed on the top of barrel 302, the bottom both sides of barrel 302 all are equipped with labyrinth groove 304, the interior bottom both ends of barrel 302 all are equipped with liquid level platform 305, the top intercommunication of one side liquid level platform 305 has first blow-off pipe 306 and the terminal outer wall that runs through jar body 201 of first blow-off pipe 306 and is connected at the input of dredge pump 110.
Specifically, an active sand bed 204 for intercepting dirty substances reversely generates steam through a self-gravity matching steam generator 303 to generate a steam stripping effect to continuously subside downwards, so that the dirty substances subside to the bottom of the equipment, based on a steam stripping principle, a mixture of dirty sand and water is pushed upwards through a central pipe 301 by steam lift, dirty suspended matters and sand are separated by a strong friction effect, the sand subsides and falls in a top sand washing mechanism 3, dirty water is discharged through a first drain pipe 306, a liquid level difference is generated in the sand washing mechanism 3 by arranging a liquid level table 305, a small part of clean filtered clear water and the sand are ensured to reversely flow by driving and matching a labyrinth groove 304 structure through the liquid level difference, so that sand is deeply cleaned, the settling time of the labyrinth groove 304 is prolonged, the settleability of the sand is ensured, efficient sediment separation is ensured, the cleaned sand continuously subsides to the top of a sand layer, and the dirty sand at the bottom is continuously lifted to the top to be cleaned by steam stripping, so that the active sand layer 204 is always in a good filtering state.
Further, ultrafiltration mechanism 4 includes casing 401, casing 401's inside is equipped with a plurality of ultrafiltration pipes 402 that are the cyclic arrangement, casing 401's top one side is equipped with water purification output tube 403, ultrafiltration pipe 402's bottom all is linked together through branch pipe and outlet pipe 205, outlet pipe 205 is located and installs three-way valve 404 on the inside one side external diameter of casing 401, the front end intercommunication mouth department of three-way valve 404 installs second blow off pipe 405 and the end of second blow off pipe 405 runs through the outer wall of casing 401 and is connected at the input of dredge pump 110.
Specifically, the water filtered by the active sand bed 204 enters the ultrafiltration tube 402 through the water outlet pipe 205, and is finally filtered by the ultrafiltration membrane in the tube to remove organic microorganisms, bacteria and viruses therein, and finally discharged from the purified water output pipe 403.
Further, the backwashing mechanism 5 comprises a control box 501, the control box 501 is welded at the bottom end of the housing 401, a speed reducing motor 502 is installed at the bottom end of the control box 501, the driving end of the speed reducing motor 502 penetrates through the outer wall of the control box 501 and is fixedly connected with a main gear 503, a plurality of annularly arranged pinions 504 are movably connected inside the control box 501, the inner ends of the pinions 504 are connected with the main gear 503 in a meshed manner, the middle parts of the top ends of the pinions 504 are fixedly connected with a thin rod 505, the tail ends of the thin rod 505 penetrate through the outer wall of the housing 401 and extend into the corresponding side of the ultrafiltration tube 402, brushes 506 are arranged on the outer wall of the thin rod 505, the backwashing mechanism 5 further comprises a submersible pump 507, the submersible pump 507 is installed at one side of the inner top of the housing 401, the output end of the submersible pump 507 penetrates through the top wall of the housing 401 through a pipeline and is fixedly connected at one end of a water ring 508, the bottom end of the water ring 508 is fixedly connected with a plurality of annularly arranged venturi tubes 509, and the bottom ends of the venturi tubes 509 are connected at openings of the corresponding side of the ultrafiltration tubes 402.
Specifically, when the ultrafiltration tube 402 is clogged after being used for a period of time, the main gear 503 is driven to rotate by the speed reduction motor 502, all the pinions 504 and the thin rods 505 are driven to rotate, the brush 506 is driven to scrub the inside of the ultrafiltration tube 402, meanwhile, the submersible pump 507 inputs clean water into the water ring 508, the inside of the ultrafiltration tube 402 is flushed through the venturi 509, the backwashing process can be completed, and after the flushing is completed, the direction is changed by the three-way valve 404, so that sewage is discharged from the second sewage discharge pipe 405.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an energy-concerving and environment-protective chemical production sewage treatment plant which characterized in that includes:
the sedimentation mechanism (1) is used for carrying out preliminary sedimentation, aeration, flocculation and filtration on the sewage generated in the chemical production process and removing large-particle impurities in the sewage;
the active sand rate mechanism (2) is used for filtering the precipitated sewage by active sand and intercepting small-particle dirty substances, floaters and the like in the water;
the sand washing mechanism (3) is used for washing the active sand in the active sand mechanism to ensure that the sand layer is always in a better filtering state;
the ultrafiltration mechanism (4) is used for carrying out ultrafiltration net filtration on the sewage after the active sand treatment, removing bacteria, viruses and organic matters in the water and improving the quality of the effluent;
and the back washing mechanism (5) is used for cleaning the inside of the ultrafiltration water mechanism after water filtration, so that the ultrafiltration water mechanism can be repeatedly used, and is energy-saving and environment-friendly.
2. The energy-saving and environment-friendly chemical production sewage treatment device according to claim 1, characterized in that: sedimentation mechanism (1) includes sedimentation tank (101), the top one end of sedimentation tank (101) is equipped with sewage input tube (102), sedimentation tank (101) inside upper and lower wall is equipped with a plurality of different ripples folded plates (103) that stagger each other, be equipped with two aerators (104) on the diapire of sedimentation tank (101), one side that the top of sedimentation tank (101) is close to sewage input tube (102) is equipped with dosing tank (105), one side that the inside of sedimentation tank (101) is close to sewage input tube (102) is installed and is stirred stream ware (106), one side that sewage input tube (102) were kept away from to the interior top of sedimentation tank (101) has erect filter screen (107).
3. The energy-saving and environment-friendly chemical production sewage treatment device according to claim 2, characterized in that: sedimentation tank (101) still include elevator pump (108), raceway (109) and dredge pump (110), the one end of keeping away from sewage input tube (102) on sedimentation tank (101) upper portion is installed in elevator pump (108), inside the output of elevator pump (108) extended to active sand rate mechanism (2) through raceway (109), dredge pump (110) are still installed to the front end downside of sedimentation tank (101).
4. The energy-saving and environment-friendly chemical production sewage treatment device according to claim 1, characterized in that: the active sand rate mechanism (2) comprises a tank body (201), a sewer pipe (202) is arranged in the middle of the tank body (201), one side of the top of the sewer pipe (202) is communicated with a water delivery pipe (109), an inverted cone-shaped funnel (203) is welded at the bottom end of the sewer pipe (202), an active sand bed (204) is filled in the tank body (201), and a water outlet pipe (205) is arranged on one side of the upper portion of the tank body (201) and the tail end of the water outlet pipe (205) extends into the ultra-filtration water mechanism (4).
5. The energy-saving and environment-friendly chemical production sewage treatment device according to claim 1, characterized in that: sand washing mechanism (3) include center tube (301), center tube (301) set up the inside and the bottom of downcomer (202) and extend to the interior bottom of the jar body (201), the top fixedly connected with barrel (302) of center tube (301), steam generator (303) are installed on the top of barrel (302), the bottom both sides of barrel (302) all are equipped with labyrinth groove (304), the interior bottom both ends of barrel (302) all are equipped with liquid level platform (305), one side the top intercommunication of liquid level platform (305) has the outer wall of the end through jar body (201) of first blowdown pipe (306) and connects the input at dredge pump (110).
6. The energy-saving and environment-friendly chemical production sewage treatment device according to claim 1, characterized in that: ultrafiltration water mechanism (4) are including casing (401), the inside of casing (401) is equipped with a plurality of ultrafiltration pipes (402) that are the annular range, top one side of casing (401) is equipped with water purification output tube (403), the bottom of ultrafiltration pipe (402) all is linked together through branch pipe and outlet pipe (205), install three-way valve (404) on outlet pipe (205) are located the inside one side external diameter of casing (401), the front end intercommunication mouth department of three-way valve (404) installs the end of second blow off pipe (405) and runs through the outer wall of casing (401) and connect the input at dredge pump (110).
7. The energy-saving and environment-friendly chemical production sewage treatment device according to claim 1, characterized in that: backwashing mechanism (5) includes control box (501), control box (501) welding is in the bottom of casing (401), gear motor (502) are installed to the bottom of control box (501), gear motor (502) drive end runs through control box (501) outer wall and fixedly connected with main gear (503), inside still swing joint of control box (501) has a plurality of pinion (504) that are cyclic annular arrangement and the medial extremity of pinion (504) with main gear (503) meshing links to each other, the tip of the equal fixedly connected with slender pole (505) in the middle part of the top of pinion (504) and the end of slender pole (505) all run through casing (401) outer wall and extend to the ultrafiltration pipe (402) inside of corresponding side, all be equipped with brush (506) on the outer wall of slender pole (505).
8. The energy-saving and environment-friendly chemical production sewage treatment device according to claim 7, characterized in that: the back flush mechanism (5) still includes immersible pump (507), immersible pump (507) is installed in the interior top one side of casing (401), the output of immersible pump (507) runs through casing (401) top wall and fixed connection in the one end of water ring (508) through the pipeline, the bottom fixed connection of water ring (508) has a plurality of venturi tubes (509) that are the annular arrangement and the bottom of venturi tube (509) all connects at the top opening part that corresponds side ultrafiltration tube (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211395041.6A CN115650518A (en) | 2022-11-08 | 2022-11-08 | Energy-concerving and environment-protective chemical production sewage treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211395041.6A CN115650518A (en) | 2022-11-08 | 2022-11-08 | Energy-concerving and environment-protective chemical production sewage treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115650518A true CN115650518A (en) | 2023-01-31 |
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| CN118652014A (en) * | 2024-08-19 | 2024-09-17 | 山西农业大学 | A fishery wastewater purification device and use method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118652014A (en) * | 2024-08-19 | 2024-09-17 | 山西农业大学 | A fishery wastewater purification device and use method |
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