CN111115963A - Sewage treatment plant based on river weir - Google Patents
Sewage treatment plant based on river weir Download PDFInfo
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- CN111115963A CN111115963A CN202010018170.8A CN202010018170A CN111115963A CN 111115963 A CN111115963 A CN 111115963A CN 202010018170 A CN202010018170 A CN 202010018170A CN 111115963 A CN111115963 A CN 111115963A
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- tank
- river
- sedimentation tank
- sedimentation
- weir
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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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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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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
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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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
- C02F7/00—Aeration of stretches of water
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The invention discloses a river weir-based sewage treatment device, which comprises a primary sedimentation tank, a secondary sedimentation tank, an aeration tank, a tertiary sedimentation tank, a submerged plant tank and a filtering tank which are sequentially arranged in parallel to form sedimentation filtering units, wherein the two sedimentation filtering units are respectively arranged at the outer sides of two inclined flow channels, the primary sedimentation tank in each sedimentation filtering unit is communicated with a water storage tank, the filtering tank in each sedimentation filtering unit is communicated with a floating plant pond, the floating plant pond is built on a river weir, the two sludge collecting tanks are respectively arranged at the outer sides of the two sedimentation filtering units, and the sludge collecting tanks are communicated with the sedimentation filtering units. The invention realizes river diversion and sewage separation, has long water storage time and can fully treat the sewage; the multistage sedimentation can treat sewage watercourses with more sediments. Matrix filtration can effectively treat various types of pollutants; the floating plant pond can be used as a landscape to appreciate, and the ornamental value of the water outlet of the device is increased.
Description
The technical field is as follows:
the invention relates to a sewage treatment device based on a river weir.
Background art:
at present, the river treatment technologies mainly comprise: revetment engineering (plant revetment, greening concrete vegetation revetment, geosynthetic revetment, soil bioengineering revetment), water quality remediation and treatment engineering (soil infiltration technology, constructed wetland technology, stabilization pond technology, artificial floating island), water storage permeability reduction engineering (hardening treatment, ecological permeability reduction of composite soil, permeability reduction of composite earthwork model, soil moistening waterproof blanket, clay permeability reduction), river landscape engineering (river channel plane restoration, river channel section restoration, ecological river bank engineering, shore vegetation buffer zone engineering), and the like.
The prior patent discloses a river sewage treatment device (CN 206308049U), which is arranged in a river channel, controls the water inlet and outlet of a treatment tank by using the buoyancy of river water, and throws filler into the treatment tank to treat sewage. Therefore, the invention designs the sewage treatment device for in-situ river diversion treatment and with landscape effect.
The invention content is as follows:
the invention provides a sewage treatment device based on a river weir, aiming at solving the problems in the prior art.
The technical scheme adopted by the invention is as follows: a sewage treatment device based on a river weir is characterized in that an upstream river channel is arranged on the upper side of the river weir, a downstream river channel is arranged on the lower side of the river weir, the device comprises a primary sedimentation tank, a secondary sedimentation tank, an aeration tank, a tertiary sedimentation tank, a submerged plant tank, a filtering tank, a floating plant pond, a sludge collecting tank and a porous flow dividing pipe, two inclined flow channels are built on river banks on two sides of the upstream river channel, the top ends of the two inclined flow channels are arranged on the rear sides of the river weir, a water storage tank is built at the bottom end of each inclined flow channel, the porous flow dividing pipe is arranged on the rear side of the river weir, and two ends of the porous flow dividing pipe respectively correspond to and extend into the two inclined;
the one-level sedimentation tank, the second grade sedimentation tank, the aeration tank, tertiary sedimentation tank, benthophyte pond and filtering ponds set up side by side in proper order and form the sediment filter unit, the one-level sedimentation tank, the second grade sedimentation tank, the aeration tank, tertiary sedimentation tank, the height of benthophyte pond and filtering ponds sets up by high to low in proper order, the outside of two diagonal flow irrigation canals and ditches is located respectively to two sediment filter units, the one-level sedimentation tank among the sediment filter unit is linked together with the catch basin, filter tank among the sediment filter unit is linked together with showy plant pond, showy plant pond is built on the river weir, two sludge collecting ponds are located two outside of deposiing filter unit respectively, and sludge collecting pond and sediment filter unit are linked together.
Further, the bottom of one-level sedimentation tank is equipped with first cement fill, be equipped with the first perforated plate that the level was arranged in the top of first cement fill, fixed a plurality of porous flow distribution plate on the lower terminal surface of first perforated plate, the inboard of combining the department lateral wall with the catch basin at one-level sedimentation tank is equipped with the buffer plate, the top that combines the department lateral wall with the second grade sedimentation tank of one-level sedimentation tank is equipped with the overflow grid, be equipped with the blow off pipe on the outer wall of one-level sedimentation tank, the blow off pipe is linked together with the mud collecting pit, be equipped with the valve on the blow off pipe.
Further, porous flow distribution plate includes PVC hardboard, rubber soft board and first grid board, rubber soft board and PVC hardboard fixed connection are in the upper and lower both sides of first grid board respectively, and the PVC hardboard is vertical to be arranged, and the slope of rubber soft board is arranged, rubber soft board and first perforated plate fixed connection.
Further, the bottom of second grade sedimentation tank is equipped with the second cement fill, is equipped with the second perforated plate that the level was arranged in the top of second cement fill, is equipped with the porous medium board in the top of second perforated plate, is equipped with the blow off pipe on the outer wall of second grade sedimentation tank, and the blow off pipe is linked together with the mud collecting pit, is equipped with the valve on the blow off pipe.
Furthermore, the porous medium plate comprises a plurality of pipe bodies which are arranged in parallel and have hexagonal sections, and a plurality of through holes are formed in the front end face, the rear end face, the upper end face and the lower end face of each pipe body.
Furthermore, a second grid plate which is horizontally arranged is arranged in the aeration tank, and a submerged aerator is arranged below the second grid plate.
Furthermore, a plurality of plant support frames are arranged on the inner wall of the submerged plant pool, and submerged plants are arranged on the plant support frames;
the floating plant pond is provided with floating plants, the outer wall of the floating plant pond is provided with a water delivery pipe, and the water delivery pipe is provided with a valve.
Furthermore, a support frame formed by pouring reinforced concrete is arranged at the bottom of the filter tank, gravels are paved on the support frame, and the thickness of the gravels is 0.3-0.6 m; laying a filter substrate above the gravel, wherein the filter substrate is formed by mixing apricot shell granular carbon, gravel and magnesium oxide, and the thickness of the filter substrate is 0.3-0.6 m;
the outer wall of the filtering tank is provided with a cleaning window and a water delivery pipe, the cleaning window is provided with a baffle, the baffle is hinged on the outer wall of the filtering tank through a shaft, and the baffle seals the cleaning window; the pipe orifice of the water delivery pipe is provided with a filter screen.
Furthermore, the porous shunt tube is made of PVC, and a plurality of shunt holes are arranged on the circumferential wall of the shunt tube.
Further, the river weir comprises an upper weir and a lower weir, and the floating plant pond is built between the upper weir and the lower weir.
The invention has the following beneficial effects:
the invention realizes river diversion and sewage separation, has long water storage time and can fully treat the sewage; the multistage sedimentation can treat sewage watercourses with more sediments. Matrix filtration can effectively treat various types of pollutants; the floating plant pond 7 can be used as a landscape for appreciation, and the ornamental value of the water outlet of the device is increased.
Description of the drawings:
FIG. 1 is a top view of the present invention.
Fig. 2 is a side view of the present invention.
FIG. 3 is a structural diagram of a primary sedimentation tank according to the present invention.
FIG. 4 is a view showing the structure of the multi-orifice distribution plate of the present invention.
FIG. 5 is a structural diagram of a secondary sedimentation tank according to the present invention.
FIG. 6 is a structural view of a porous medium plate in the present invention.
FIG. 7 is a structural view of an aeration tank according to the present invention.
FIG. 8 is a structural view of a three-stage sedimentation tank according to the present invention.
FIG. 9 is a structural view of a submerged plant tank according to the present invention.
FIG. 10 is a structural view of a filtration tank of the present invention.
FIG. 11 is a structural view of the floating plant pond of the present invention.
Fig. 12 is a block diagram of a porous shunt according to the present invention.
FIG. 13 is a block diagram of the weir.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 12, the present invention relates to a sewage treatment plant based on a river weir, wherein an upper side of the river weir is an upstream river channel, and a lower side of the river weir is a downstream river channel, the plant treatment plant comprises a primary sedimentation tank 1, a secondary sedimentation tank 2, an aeration tank 3, a tertiary sedimentation tank 4, a submerged plant tank 5, a filtration tank 6, a floating plant pond 7, a sludge collection tank 8 and a porous flow dividing pipe 11, two diagonal flow channels 10 are built on two banks on the upstream river channel, the top ends of the two diagonal flow channels 10 are arranged on the rear side of the river weir, a water storage tank 9 is built at the bottom end of each diagonal flow channel 10, the porous flow dividing pipe 11 is arranged on the rear side of the river weir, the porous flow dividing pipe 11 is arranged in parallel with the river weir, and the two ends of the porous flow dividing pipe 11 respectively correspond to the.
One-level sedimentation tank 1, second grade sedimentation tank 2, aeration tank 3, tertiary sedimentation tank 4, benthophyte pond 5 and filtering ponds 6 set up side by side in proper order and form the precipitation filter unit, one-level sedimentation tank 1, second grade sedimentation tank 2, aeration tank 3, tertiary sedimentation tank 4, the height of benthophyte pond 5 and filtering ponds 6 sets up by high to low in proper order, two precipitation filter units locate the outside of two diagonal flow irrigation canals and ditches 10 respectively, one-level sedimentation tank 1 and catch basin 9 among the precipitation filter unit are linked together, filtering ponds 6 among the precipitation filter unit are linked together with showy plant pond 7, showy plant pond 7 is rebuild on the river weir, two mud collecting pit 8 locate two outside of precipitation filter unit respectively, and mud collecting ponds 8 are linked together with the precipitation filter unit.
The bottom of a primary sedimentation tank 1 is provided with a first cement hopper 104, a first porous plate 106 which is horizontally arranged is arranged above the first cement hopper 104, a plurality of porous flow distribution plates 105 are fixed on the lower end surface of the first porous plate 106, a flow buffering plate 101 is arranged on the inner side of the side wall of the joint of the primary sedimentation tank 1 and a water storage tank 9, an overflow grid 107 is arranged at the top end of the side wall of the joint of the primary sedimentation tank 1 and a secondary sedimentation tank 2, the outer wall of the primary sedimentation tank 1 is provided with a sewage discharge pipe 102, the sewage discharge pipe 102 is communicated with a sludge collection tank 8, and a valve 103 is arranged on the sewage discharge pipe 102.
The porous flow distribution plate 105 comprises a PVC hard plate 1051, a rubber soft plate 1052 and a first grid plate 1053, wherein the rubber soft plate 1052 and the PVC hard plate 1051 are respectively and fixedly connected with the upper side and the lower side of the first grid plate 1053, the PVC hard plate 1051 is vertically arranged, the rubber soft plate 1052 is obliquely arranged (the included angle between the PVC hard plate 1051 and the rubber soft plate 1052 is 60 degrees), and the rubber soft plate 1052 is fixedly connected with the first porous plate 106.
The porous flow distribution plate 105 enables the water body to flow into the first-level sedimentation tank 1 in a relatively gentle and gradual way, sludge in the tank is prevented from being splashed when direct-flushing water flows enter the sedimentation tank, and the round holes in the plate mainly play a role in preventing the plate body from being damaged due to the fact that the plate body is greatly impacted due to the fact that the stress area is large when the water flows pass through the plate body.
The bottom of second grade sedimentation tank 2 is equipped with second cement fill 204, is equipped with the second perforated plate 206 that the level was arranged in the top of second cement fill 204, is equipped with porous medium board 202 in the top of second perforated plate 206, is equipped with the blow off pipe on the outer wall of second grade sedimentation tank 2, and the blow off pipe is linked together with mud collecting pit 8, is equipped with the valve on the blow off pipe.
The porous medium plate 202 includes a plurality of tubes 2020 arranged in parallel and having a hexagonal cross section, and a plurality of through holes are formed in the front, rear, upper and lower end surfaces of the tubes 2020.
The porous medium plate 202 is used for separating larger particles, is a part of objects floating on the water surface on the primary sedimentation tank and is adsorbed on the medium, the porous medium plate needs to be replaced after being used for a period of time, and the material of the porous medium plate is mainly plastic with certain adsorption performance, such as polyethylene.
A second grid plate 303 is horizontally arranged in the aeration tank 3, and a submerged aerator 304 is arranged below the second grid plate 303.
The inner wall of the submerged plant pool 5 is provided with a plurality of plant supporting frames 502, and the plant supporting frames 502 are provided with submerged plants 505.
The floating plant pond 7 is internally provided with a floating plant 702, the outer wall of the floating plant pond 7 is provided with a water pipe 705, and the water pipe 705 is provided with a valve. The floating plant pond 7 is provided with the changxin as a landscape plant, and the plant has strong viability and is easy to culture for a long time. The floating plant pond 7 is mainly used for adsorbing and filtering fine particles in the matrix, and absorbing inorganic salt flushed from the matrix by using a plant root system.
The bottom of the third-stage sedimentation tank 4 is provided with a third cement hopper 403, the outer wall of the third-stage sedimentation tank 4 is provided with a drain pipe, the drain pipe is communicated with the sludge collection tank 8, and the drain pipe is provided with a valve.
The bottom of the filter tank 6 is provided with a support frame 605 formed by pouring reinforced concrete, gravel 603 is paved on the support frame 605, and the thickness of the gravel 603 is 0.3-06 m; a filtering substrate 602 is laid above the gravel 603, the filtering substrate 602 is formed by mixing apricot shell granular carbon, gravel and magnesium oxide, and the thickness of the filtering substrate 602 is 0.3-06 m. The filter substrate 602 can effectively adsorb nitrogen, phosphorus, and the like.
A cleaning window and a water delivery pipe are arranged on the outer wall of the filtering tank 6, a baffle 608 is arranged on the cleaning window, the baffle 608 is hinged to the outer wall of the filtering tank 6 through a shaft, the baffle 608 is fixed on the outer wall of the filtering tank 6 through a plate buckle 610, and the cleaning window is closed by the baffle 608; the pipe orifice of the water delivery pipe is provided with a filter screen.
The baffles 608 are opened while the filter matrix 602 and gravel 603 are cleaned.
The multi-hole shunt tube 11 is made of PVC, and a plurality of shunt holes are arranged on the circumferential wall of the shunt tube 11.
The river weir comprises an upper weir and a lower weir, and the floating plant pond 7 is built between the upper weir and the lower weir.
Upstream water flow firstly enters the ditch through the porous shunt tubes, flows through the small water storage tank and flows into the primary sedimentation tank, the water flow enters the secondary sedimentation tank through overflow, solid gravel and the like sink at the bottom, and flowing sand enters the sludge collection tank by opening the tube valve after a period of time.
The water body and the suspended sludge entering the secondary sedimentation tank overflow into the aeration tank, the suspended sludge is adsorbed on the second grid plate 303, and the sludge or gravel at the bottom of the tank flows into the sludge collection tank through the drain pipe; overflow gets into tertiary sedimentation tank behind water aeration in the aeration tank, the heavy end of mud or the great object of density that is generated by the aeration gets into the mud collecting pit through the blow off pipe, the water passes through the overflow and gets into the submerged plant pond, the plant makes the water turbidity reduce through effects such as absorption and absorption in the submerged plant pond, the water gets into the matrix through the overflow again and filters, the water after being filtered leads to pipe and gets into the showy plant pond, the water that floats the plant pond of flowing through flows through in the middle of the low reaches water in river course at last, accomplish the purification and the discharge of whole device to water. The filtered matrix and gravel are placed in such a way that they are replaced or cleaned at regular intervals.
Generally, the upper weir of a conventional river weir is provided with a movable support with adjustable height (as shown in fig. 13), and if the internal parts of the device need to be repaired, the height of the upper weir can be reduced, so that water flows into the floating plant pool from the river weir directly and then flows into a downstream river channel. The sludge discharged into the sludge tank can be recycled.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (10)
1. The utility model provides a sewage treatment plant based on river weir, the upside of river weir is the upper reaches river course, and the downside is the low reaches river course, its characterized in that: the device comprises a primary sedimentation tank (1), a secondary sedimentation tank (2), an aeration tank (3), a tertiary sedimentation tank (4), a submerged plant tank (5), a filter tank (6), a floating plant pond (7), a sludge collection tank (8) and porous shunt tubes (11), wherein two diagonal flow channels (10) are built on two side banks of an upstream river channel, the top ends of the two diagonal flow channels (10) are arranged at the rear sides of river weirs, a water storage tank (9) is built at the bottom end of each diagonal flow channel (10), the porous shunt tubes (11) are arranged at the rear sides of the river weirs, and the two ends of the porous shunt tubes (11) respectively and correspondingly extend into the two diagonal flow channels (10);
a first-stage sedimentation tank (1), a second-stage sedimentation tank (2), an aeration tank (3), a third-stage sedimentation tank (4), a submerged plant tank (5) and a filtering tank (6) are sequentially arranged in parallel to form a sedimentation filtering unit, one-level sedimentation tank (1), second grade sedimentation tank (2), aeration tank (3), tertiary sedimentation tank (4), the height of submerged plant pond (5) and filtering ponds (6) is in proper order by high to low setting, the outside of two diagonal flow irrigation canals and ditches (10) is located respectively to two sedimentation filter unit, one-level sedimentation tank (1) among the sedimentation filter unit is linked together with catch basin (9), filtering ponds (6) among the sedimentation filter unit are linked together with showy plant pond (7), showy plant pond (7) are built on the weir of river, two sludge collecting ponds (8) are located respectively two outside of sedimentation filter unit, and sludge collecting pond (8) are linked together with the sedimentation filter unit.
2. A river weir based sewage treatment plant as claimed in claim 1 wherein: the bottom of one-level sedimentation tank (1) is equipped with first cement fill (104), be equipped with first perforated plate (106) that the level was arranged in the top of first cement fill (104), fixed a plurality of porous flow distribution plate (105) on the lower terminal surface of first perforated plate (106), the inboard of combining the department lateral wall at one-level sedimentation tank (1) and catch basin (9) is equipped with current-slowing plate (101), the top of combining the department lateral wall with second grade sedimentation tank (2) in one-level sedimentation tank (1) is equipped with overflow grid (107), be equipped with blow off pipe (102) on the outer wall of one-level sedimentation tank (1), blow off pipe (102) are linked together with sludge collecting pit (8), be equipped with valve (103) on blow off pipe (102).
3. A river weir based sewage treatment plant as claimed in claim 2 wherein: the porous flow distribution plate (105) comprises a PVC hard plate (1051), a rubber soft plate (1052) and a first grating plate (1053), wherein the rubber soft plate (1052) and the PVC hard plate (1051) are respectively and fixedly connected to the upper side and the lower side of the first grating plate (1053), the PVC hard plate (1051) is vertically arranged, the rubber soft plate (1052) is obliquely arranged, and the rubber soft plate (1052) is fixedly connected with a first porous plate (106).
4. A river weir based sewage treatment plant as claimed in claim 1 wherein: the bottom of second grade sedimentation tank (2) is equipped with second cement fill (204), is equipped with second perforated plate (206) that the level was arranged in the top of second cement fill (204), is equipped with porous medium board (202) in the top of second perforated plate (206), is equipped with the blow off pipe on the outer wall of second grade sedimentation tank (2), and the blow off pipe is linked together with sludge collection pond (8), is equipped with the valve on the blow off pipe.
5. A river weir-based sewage treatment plant as claimed in claim 4, wherein: the porous medium plate (202) comprises a plurality of pipe bodies (2020) which are arranged in parallel and have hexagonal sections, and a plurality of through holes are formed in the front end face, the rear end face, the upper end face and the lower end face of each pipe body (2020).
6. A river weir based sewage treatment plant as claimed in claim 1 wherein: a second grid plate (303) which is horizontally arranged is arranged in the aeration tank (3), and a submerged aerator (304) is arranged below the second grid plate (303).
7. A river weir based sewage treatment plant as claimed in claim 1 wherein: a plurality of plant support frames (502) are arranged on the inner wall of the submerged plant pool (5), and submerged plants (505) are arranged on the plant support frames (502);
a floating plant (702) is arranged in the floating plant pond (7), a water pipe (705) is arranged on the outer wall of the floating plant pond (7), and a valve is arranged on the water pipe (705).
8. A river weir based sewage treatment plant as claimed in claim 1 wherein: a support frame (605) formed by pouring reinforced concrete is arranged at the bottom of the filter tank (6), gravels (603) are laid on the support frame (605), and the thickness of the gravels (603) is 0.3-0.6 m; laying a filtering substrate (602) above the gravel (603), wherein the filtering substrate (602) is formed by mixing apricot shell granular carbon, gravel and magnesium oxide, and the thickness of the filtering substrate (602) is 0.3-0.6 m;
a cleaning window and a water delivery pipe are arranged on the outer wall of the filtering tank (6), a baffle (608) is arranged on the cleaning window, the baffle (608) is hinged on the outer wall of the filtering tank (6) through a shaft, and the cleaning window is sealed by the baffle (608); the pipe orifice of the water delivery pipe is provided with a filter screen.
9. A river weir based sewage treatment plant as claimed in claim 1 wherein: the porous shunt pipe (11) is made of PVC, and a plurality of shunt holes are arranged on the circumferential wall of the shunt pipe (11).
10. A river weir based sewage treatment plant as claimed in claim 1 wherein: the river weir comprises an upper weir and a lower weir, and the floating plant pond (7) is built between the upper weir and the lower weir.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010018170.8A CN111115963A (en) | 2020-01-08 | 2020-01-08 | Sewage treatment plant based on river weir |
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| CN202010018170.8A CN111115963A (en) | 2020-01-08 | 2020-01-08 | Sewage treatment plant based on river weir |
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| CN202010018170.8A Pending CN111115963A (en) | 2020-01-08 | 2020-01-08 | Sewage treatment plant based on river weir |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028397A (en) * | 2020-08-26 | 2020-12-04 | 中铁北京工程局集团有限公司 | Polluted city internal lake water quality purification and water ecological restoration system |
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