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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- weir
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- sedimentation tank
- filter
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- 239000010865 sewage Substances 0.000 title claims abstract description 35
- 238000004062 sedimentation Methods 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000001914 filtration Methods 0.000 claims abstract description 24
- 238000005273 aeration Methods 0.000 claims abstract description 21
- 239000010802 sludge Substances 0.000 claims abstract description 21
- 239000011159 matrix material Substances 0.000 claims abstract description 10
- 238000001556 precipitation Methods 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims abstract description 9
- 241000196324 Embryophyta Species 0.000 claims description 57
- 239000004568 cement Substances 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 235000009827 Prunus armeniaca Nutrition 0.000 claims description 3
- 244000018633 Prunus armeniaca Species 0.000 claims description 3
- 238000005276 aerator Methods 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 239000013049 sediment Substances 0.000 abstract description 7
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
Images
Classifications
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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
-
- 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
-
- 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
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
本发明公开了一种基于河堰的污水处理装置，一级沉淀池、二级沉淀池、曝气池、三级沉淀池、沉水植物池和过滤池依次并列设置并形成沉淀过滤单元，两个沉淀过滤单元分别设于两斜流沟渠的外侧，沉淀过滤单元中的一级沉淀池与蓄水槽相连通，沉淀过滤单元中的过滤池与漂浮植物塘相连通，漂浮植物塘修建于河堰上，两个污泥收集池分别设于两沉淀过滤单元的外侧，且污泥收集池与沉淀过滤单元相连通。本发明实现河流分流，分污，且蓄水时间长，可充分对其污水进行处理；多级沉淀可处理沉积较多的污水河道。基质过滤可有效处理各类型的污染物；漂浮植物塘可作为景观欣赏，增加装置出水口的观赏性。
The invention discloses a sewage treatment device based on a river weir. A first-level sedimentation tank, a second-level sedimentation tank, an aeration tank, a third-level sedimentation tank, a submerged plant tank and a filter tank are arranged in parallel to form a sedimentation filter unit. The sedimentation and filtration units are respectively arranged on the outer sides of the two oblique flow ditches. The first-level sedimentation tank in the sedimentation and filtration unit is connected with the water storage tank, and the filter tank in the sedimentation and filtration unit is connected with the floating plant pond. The floating plant pond is built in the river weir. Above, two sludge collection tanks are respectively arranged on the outside of the two precipitation filter units, and the sludge collection tanks are communicated with the precipitation filter units. The invention realizes river diversion and sewage separation, and the water storage time is long, and the sewage can be fully treated; the multi-stage sedimentation can treat sewage channels with more sediments. Matrix filtration can effectively deal with various types of pollutants; the floating plant pond can be used as a landscape appreciation to increase the ornamental value of the water outlet of the device.
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010018170.8A CN111115963A (en) | 2020-01-08 | 2020-01-08 | Sewage treatment plant based on river weir |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010018170.8A CN111115963A (en) | 2020-01-08 | 2020-01-08 | Sewage treatment plant based on river weir |
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| CN111115963A true CN111115963A (en) | 2020-05-08 |
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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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000176497A (en) * | 1998-12-18 | 2000-06-27 | Konjo Go | Method of removing organic matter in sludge |
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