CN110143669B - Ecological purifier of modularization stereoplasm farmland escape canal - Google Patents

Ecological purifier of modularization stereoplasm farmland escape canal Download PDF

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Publication number
CN110143669B
CN110143669B CN201811009261.4A CN201811009261A CN110143669B CN 110143669 B CN110143669 B CN 110143669B CN 201811009261 A CN201811009261 A CN 201811009261A CN 110143669 B CN110143669 B CN 110143669B
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China
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stainless steel
mesh
plate
biological
biological base
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CN201811009261.4A
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CN110143669A (en
Inventor
曹林奎
徐后涛
郑小燕
沙之敏
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Shanghai Lishui Aquatic Environment Institute
Shanghai Jiaotong University
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Shanghai Lishui Aquatic Environment Institute
Shanghai Jiaotong University
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/302Nitrification and denitrification treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

A modularized hard farmland drainage ditch ecological purification device. The biological slow-release planting basket comprises a box body and is characterized in that the box body is a stainless steel net box, the front end of the box body is provided with an opening, the left side wall of the stainless steel net box is provided with a mounting hole, the left and right end parts on the inner bottom surface are respectively provided with a left longitudinal plate groove and a right longitudinal plate groove which are transversely arranged, a left biological denitrification plate, a 40-mesh left biological base screen plate, a 120-mesh left biological base screen plate and a left stainless steel screen mesh which are matched with the left biological denitrification plate are sequentially inserted from left to right in the left longitudinal plate groove which is transversely arranged, a right biological denitrification plate, a 40-mesh right biological base screen plate, a 120-mesh right biological base screen plate and a right stainless steel screen mesh which are matched with the right biological base screen mesh are sequentially inserted from right to left in the right longitudinal plate groove which is transversely arranged, the front end part of the middle part on the inner bottom surface is provided with an aeration device, a glass light stone layer is paved on the middle part of the inner bottom surface, microorganism slow-release nutrient salt particles are uniformly scattered on the middle part of the inner top is suspended with artificial float grass, and the ecological float plate with a planting basket with holes is distributed on the top surface. The invention is suitable for being applied in the hard farmland drainage ditch.

Description

Ecological purifier of modularization stereoplasm farmland escape canal
Technical Field
The invention relates to an ecological purification device for a hard farmland drainage ditch, in particular to a modularized ecological purification device for the hard farmland drainage ditch.
Background
The drainage ditch serves as a passage for connecting farmland with an external river water system, is an initial convergence place for farmland drainage and is an output place for farmland pollution to be discharged downstream, and the drainage ditch plays the dual roles of source and sink. In the past, in order to realize optimal water delivery and drainage functions in the construction of ditches in irrigation areas in China, concrete, slurry masonry and other rigid lining are used in many ways, the traditional hard farmland drainage ditch is single in ecological system in the ditches, and farmland pollutants brought by excessive use of chemical fertilizers are directly collected through the hard farmland drainage ditch and drained into the downstream, so that agricultural non-point source pollution is aggravated. Therefore, it becomes important to ecologically treat the conventional hard farmland drainage ditch.
Disclosure of Invention
The invention aims to provide a modularized hard farmland drainage ditch ecological purification device, which not only can provide a modularized ecological purification system with simple operation, high purification efficiency, convenient pipe culture and less investment on the basis of not changing the original structure of the hard farmland drainage ditch, but also can intercept pollutants with larger volume and purify nutrient substances such as nitrogen and phosphorus, and can beautify the hard farmland drainage ditch. Therefore, the pollution problem of sewage discharged by the traditional hard farmland drainage ditch to surrounding water areas is relieved.
The solution of the present invention for achieving the above object is: the modular hard farmland drainage ditch ecological purification device comprises a box body, wherein the box body is a stainless steel net box, the front end of the box body is open, a mounting hole is arranged on the left side wall of the stainless steel net box, left and right longitudinal plate grooves which are transversely arranged are respectively arranged at the left and right end parts on the inner bottom surface of the stainless steel net box, a left biological denitrification plate, a 40-mesh left biological base net plate, a 120-mesh left biological base net plate and a left stainless steel screen which are matched with the left longitudinal plate grooves are sequentially inserted from left to right in the left longitudinal plate grooves, and are in one-to-one joint, the left biological denitrification plate, the 40-mesh left biological base net plate, the 120-mesh left biological base net plate and the lower end part of the left stainless steel screen are also provided with air inlet pipe holes, the right biological denitrification plate, the 40-mesh right biological base screen, the 120-mesh right biological base screen and the right stainless steel screen which are matched with the right biological denitrification plate, the 40-mesh right biological base screen and the right stainless steel screen are sequentially inserted into the right longitudinal plate grooves from right to left, and are in embedded connection one by one, an aeration device consisting of an aeration head tube seat with a plurality of micropore aeration heads and an air inlet tube is arranged at the front end part of the middle part on the inner bottom surface of the stainless steel screen, the right end of the air inlet tube penetrates through a mounting hole arranged on the left side wall of the stainless steel screen, air inlet tube holes are respectively arranged at the lower end parts of the left biological denitrification plate, the 40-mesh left biological base screen, the 120-mesh left biological base screen and the left stainless steel screen, and are in threaded connection with air inlets of the aeration head tube seat with a plurality of micropore aeration heads, a glass light stone layer is paved at the middle part on the inner bottom surface of the stainless steel screen, microorganism slow-release nutrient salt particles are uniformly dispersed in the glass light stone layer, the middle part department at top in the stainless steel box with a net is hung with many artifical pasture and water of perpendicular to box with a net bottom at intervals, it has the ecological floating plate piece in centre to distribute on the stainless steel box with a net top surface, is connected by the connector link between every ecological floating plate piece, all installs a planting basket that is used for planting emergent aquatic plant in the centre bore on every ecological floating plate piece.
The number of the aeration heads with a plurality of micropores on the aeration head tube seat is two or more than two.
The number of the plurality of artificial aquatic weeds vertical to the bottom of the net cage is more than fifteen at intervals at the middle part of the inner top of the stainless steel net cage.
The emergent aquatic plant is flowers with strong purifying ability and rhizoma Acori Graminei.
The invention relates to a modularized hard farmland drainage ditch ecological purification device which comprises a stainless steel net cage, a biological denitrification plate, a biological base net plate, a stainless steel screen system, a filler-microorganism coupling system, an aeration system, an emergent aquatic plant system and the like.
The stainless steel net cage is 1m in length, 1m in width, 0.5m in height and 0.5cm in net aperture, and can be properly adjusted according to actual conditions of the drainage ditch. The stainless steel net cage is of a three-face structure, and the front end of the stainless steel net cage is an opening.
The biological denitrification plate mainly provides carbon sources for microorganisms, promotes denitrification of nitrogen in farmland drainage and reduces nitrogen.
The 40-mesh bio-based screen plate is used for filtering sludge impurities, and the 120-mesh screen plate is mainly used for attaching algae and protozoa to primarily purify water quality and reduce nitrogen and phosphorus in incoming water.
The stainless steel screen is mainly used for fixing the filler, and further filtering some fine particles to enter a filler system.
The filler-microorganism coupling system comprises a glass light stone layer, microorganism slow-release nutrient salt particles and artificial aquatic weeds. The glass pumice is a porous light inorganic material, dense bubbles and micropores are formed in the glass pumice, the glass pumice has excellent water quality purifying capacity, and meanwhile, the glass pumice is light in weight and convenient to clean and replace. The microorganism slow-release nutrient salt particles are rich in carbon sources and microelements required by activating indigenous microorganisms, and are continuously administered once in 30 days under normal conditions. The artificial aquatic plants are arranged at intervals perpendicular to the bottom of the net cage, and have good effect on nitrogen and phosphorus removal.
The aeration device is arranged at the inner bottom of the stainless steel net cage and mainly used for promoting microorganisms to purify water quality and reducing nitrogen.
The emergent aquatic plants are planted in the planting basket, the planting basket is placed in holes in the ecological floating plates, the plates are connected through connecting buckles, and the plant varieties are emergent aquatic plants with strong purifying capacity such as flowers, rhizoma acori graminei and the like.
In short, the modularized ecological purification device for the hard farmland drainage ditch can purify farmland drainage and improve the landscape of the hard farmland drainage ditch, has the advantages of portability, easy disassembly and assembly, cleaning, combined use and the like, and can flexibly allocate the quantity in the hard farmland drainage ditch according to actual demands. Experiments in the hard farmland drainage ditch in the field show that the removal amount of nitrogen is 18-56 g/d and the removal amount of phosphorus is 0.06-0.23 g/d for each modularized hard farmland drainage ditch ecological purification device.
The modularized ecological purification device for the hard farmland drainage ditch is suitable for being applied in the hard farmland drainage ditch.
Drawings
The specific structure of the present invention is given by the following examples and the accompanying drawings.
FIG. 1 is a schematic diagram of the modular rigid farmland drainage ditch ecological purification device of the present invention.
FIG. 2 is a schematic view of a portion of a modular rigid farmland drainage ditch ecological purification apparatus of the present invention.
Detailed Description
The modular rigid farmland drainage ditch ecological purification device of the present invention will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, the modular rigid farmland drainage ditch ecological purification device of the present invention comprises a tank.
The stainless steel net cage is characterized in that the stainless steel net cage 1 is arranged on the box body, the front end of the stainless steel net cage 1 is provided with an opening, the stainless steel net cage 1 is 1m in length, 1m in width and 0.5m in height, the mesh diameter of the stainless steel net cage 1 is 0.5cm, the stainless steel net cage can be properly adjusted according to the actual situation of a drainage ditch, and the left side wall of the stainless steel net cage 1 is provided with a mounting hole 11.
Left and right longitudinal plate grooves 21 and 22 which are transversely arranged are respectively arranged at the left and right end parts on the inner bottom surface of the stainless steel net cage 1, and a left biological denitrification plate 211, a 40-mesh left biological base net plate 212, a 120-mesh left biological base net plate 213 and a left stainless steel screen 214 which are matched with the left longitudinal plate grooves 21 are sequentially inserted from left to right in the left longitudinal plate grooves 21 which are transversely arranged, and are respectively connected in an embedding way. The lower end parts of the left biological denitrification plate 211, the 40-mesh left biological base screen 212, the 120-mesh left biological base screen 213 and the left stainless steel screen 214 are respectively provided with an air inlet pipe hole 210.
The left biological denitrification plate 211 is formed by smashing and pressing barley straws, the length of the left biological denitrification plate 211 is 1m, the width of the left biological denitrification plate is 0.4m, the thickness of the left biological base screen 211 is 12mm, the lengths of the 40-mesh left biological base screen 212 and the 120-mesh left biological base screen 213 are 1m, the widths of the left biological base screen 212 and the 120-mesh left biological base screen 213 are 0.4m, the thicknesses of the left biological base screen 213 and the 120-mesh left biological base screen 213 are 12mm, the left biological base screen 212 and the 120-mesh left biological base screen 213 are formed by fixedly connecting stainless steel frames and polyamide fiber plates, the length of the left stainless steel screen 214 is 1m, the width of the left biological base screen 214 is 0.4m, and the thickness of the left biological base screen 214 is 12mm, and the left biological base screen 214 is formed by combining left stainless steel frames and left stainless steel wires. The aperture of the screen is 2.9mm, and the wire diameter is 2.9mm
0.71mm.
The right biological denitrification plates 221, the 40-mesh right biological base net plates 222, the 120-mesh right biological base net plates 223 and the right stainless steel screen 224 which are matched with the right longitudinal plate grooves 22 are sequentially inserted into the right longitudinal plate grooves 22 from right to left, and are in scarfing connection.
The right longitudinal biological denitrification plate 221 is formed by crushing and pressing barley straw, the length of the right longitudinal biological denitrification plate 221 is 1m, the width is 0.4m, and the thickness is 12mm. The length of the 40-mesh right bio-based screen plate 222 and the 120-mesh right bio-based screen plate 221 are 1m, the width of the 40-mesh right bio-based screen plate 222 and the 120-mesh right bio-based screen plate 221 are 0.4m, the thickness of the 40-mesh right bio-based screen plate 222 and the 120-mesh right bio-based screen plate 221 are 12mm, the 40-mesh right bio-based screen plate 222 and the 120-mesh right bio-based screen plate 221 are formed by fixedly connecting a stainless steel frame and a polyamide fiber board, the length of the right stainless steel screen 224 is 1m, the width of the right stainless steel screen plate 224 is 0.4m, and the thickness of the right stainless steel screen plate 224 is 12mm. The mesh diameter was 2.9mm and the wire diameter was 0.71mm.
An aeration device consisting of an aeration head tube seat 32 with a plurality of microporous aeration heads 321 and an air inlet tube 31 is arranged at the front end part of the middle part on the inner bottom surface of the stainless steel net cage 1. The right end of the air inlet pipe 31 passes through the mounting hole 11 arranged on the left side wall of the stainless steel net cage 1, the left biological denitrification plate 11, the left biological base screen 212 with 40 meshes, the left biological base screen 213 with 120 meshes and the air inlet pipe hole 210 respectively arranged at the lower end part of the left stainless steel screen 214, and is in threaded connection with the air inlet 322 of the aerator pipe seat 32 with a plurality of microporous aerators 321. The number of the microporous aeration heads 321 on the aeration head tube seat 32 is two or more. In this embodiment, the number of microporous aeration heads 321 is 6. The diameter of each microporous aeration head is 20mm.
The middle part on the inner bottom surface of the stainless steel net cage 1 is paved with a glass light stone layer 4, the glass light stone is made of porous light inorganic material, the specification is 3X4cm, and the consumption of the glass light stone is 0.15m 3
Microorganism slow-release nutrient salt particles 5 are uniformly dispersed in the glass light stone layer 4, and the dosage of the microorganism slow-release nutrient salt particles 5 is 500g.
The middle part of the inner top of the stainless steel net cage 1 is suspended with a space vertical to the bottom of the net cage
And a plurality of artificial aquatic weeds 6, wherein the number of the plurality of artificial aquatic weeds 6 is more than fifteen, and the length of the artificial aquatic weeds is 40cm. In this example, the amount of artificial aquatic weed is 20.
The ecological floating plate block 7 with the hole 71 in the center is arranged on the top surface of the stainless steel net cage 1, the ecological floating plate block 7 is a PE plate, the specification of the PE plate is 330 x 30mm, and the ecological floating plate block can be customized according to actual conditions. Each ecological floating plate block 7 is connected by a connecting buckle 72, a planting basket 8 for planting emergent aquatic plants is arranged in a central hole 71 on each ecological floating plate block 7, and the emergent aquatic plants are strong in purifying capacity and are flowers and grassleaf sweelflag rhizome.

Claims (1)

1. The utility model provides a modularization stereoplasm farmland escape canal ecological purification device, it includes a box, its characterized in that the box is stainless steel net cage (1), and the front end opening, be equipped with a mounting hole (11) on the left side wall of stainless steel net cage (1), left and right tip department on the interior bottom surface of stainless steel net cage (1) is provided with left and right longitudinal plate groove (21, 22) of transverse arrangement respectively, left biological denitrification board (211) that matches rather than left and right in transverse arrangement has been inserted in proper order in left and right left longitudinal plate groove (21), 40 mesh left biological base otter board (212), 120 mesh left biological base otter board (213) and left stainless steel screen (214) to form the scarf joint one by one, left biological base otter board (211), 40 mesh left biological base otter board (212), 120 mesh left biological base otter board (213) and left stainless steel screen (214) lower extreme tip department still all are equipped with an air inlet tube hole (210), right longitudinal plate groove (22) of transverse arrangement has inserted in proper order from right and has been inserted in proper order left and right biological base otter board (221), the biological base otter board (21) and the middle part of a left biological base otter board (222) that matches rather than right, and the aeration device is formed by the middle part (32) in the top of the stainless steel base otter board (21) and the top of the aeration device (31), the right end of the air inlet pipe (31) passes through a mounting hole (11) arranged on the left side wall of a stainless steel net cage (1) and the left biological denitrification plate (211), a 40-mesh left biological base net plate (212), a 120-mesh left biological base net plate (213) and an air inlet pipe hole (210) respectively arranged at the lower end of the left stainless steel screen (214), and is in threaded connection with an air inlet (322) of an aeration head tube seat (32) with a plurality of microporous aeration heads (321), a glass light stone layer (4) is paved at the middle part on the inner bottom surface of the stainless steel net cage (1), microorganism slow-release nutrient salt particles (5) are uniformly scattered in the glass light stone layer (4), a plurality of artificial float grass (6) perpendicular to the bottom of the net cage are suspended at intervals at the middle part of the inner top of the stainless steel net cage (1), ecological float grass (7) with a central hole (71) are distributed on the top surface of the stainless steel net cage (1), each ecological float grass (7) are connected by a connecting buckle (72), the number of the ecological float grass (7) is two ecological float grass blocks (71) are planted in the middle of the two aeration heads (32) on the upper carrier (8), the number of the plurality of artificial aquatic weeds (6) perpendicular to the bottom of the net cage is more than fifteen at intervals at the middle part of the inner top of the stainless steel net cage (1), and the emergent aquatic plants are strong in purifying capacity and are flowers and rhizoma acori graminei.
CN201811009261.4A 2018-08-31 2018-08-31 Ecological purifier of modularization stereoplasm farmland escape canal Active CN110143669B (en)

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CN110143669B true CN110143669B (en) 2024-03-15

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* Cited by examiner, † Cited by third party
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CN113016568B (en) * 2021-03-31 2024-03-01 陈海珍 Hydraulic engineering can pin-connected panel module channel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2900921A1 (en) * 2006-05-09 2007-11-16 Philippe Michel Treatment of effluents comprises biological pretreatment of effluents using bacterial bed, and biological treatment of nitrification-denitrification of clarification sludge obtained at an exit of the bed using vertical-flow reed bed filter
CN103288312A (en) * 2013-07-08 2013-09-11 河海大学 Portable combined constructed wetland purifying box for farmland drainage ditch
CN204434363U (en) * 2015-01-19 2015-07-01 北京致清源环保科技有限公司 Floating ecological water purification system
CN209226680U (en) * 2018-08-31 2019-08-09 上海交通大学 Modularization hard farmland drainage ditch ecological purifier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2900921A1 (en) * 2006-05-09 2007-11-16 Philippe Michel Treatment of effluents comprises biological pretreatment of effluents using bacterial bed, and biological treatment of nitrification-denitrification of clarification sludge obtained at an exit of the bed using vertical-flow reed bed filter
CN103288312A (en) * 2013-07-08 2013-09-11 河海大学 Portable combined constructed wetland purifying box for farmland drainage ditch
CN204434363U (en) * 2015-01-19 2015-07-01 北京致清源环保科技有限公司 Floating ecological water purification system
CN209226680U (en) * 2018-08-31 2019-08-09 上海交通大学 Modularization hard farmland drainage ditch ecological purifier

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