CN109516565A - A kind of unpowered riverside landscape wet land water quality purification system - Google Patents

A kind of unpowered riverside landscape wet land water quality purification system Download PDF

Info

Publication number
CN109516565A
CN109516565A CN201811608091.1A CN201811608091A CN109516565A CN 109516565 A CN109516565 A CN 109516565A CN 201811608091 A CN201811608091 A CN 201811608091A CN 109516565 A CN109516565 A CN 109516565A
Authority
CN
China
Prior art keywords
wetland
landscape
regulating
water quality
storing unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811608091.1A
Other languages
Chinese (zh)
Inventor
李红艳
张琬巍
李宁
马瑞岐
聂玲
哈清琦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changchun Institute of Applied Chemistry of CAS
Changchun Institute Technology
Original Assignee
Changchun Institute Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changchun Institute Technology filed Critical Changchun Institute Technology
Priority to CN201811608091.1A priority Critical patent/CN109516565A/en
Publication of CN109516565A publication Critical patent/CN109516565A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401Gullies for use in roads or pavements
    • E03F5/0404Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06Gully gratings
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds
    • 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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Biotechnology (AREA)
  • Botany (AREA)
  • Revetment (AREA)
  • Hydroponics (AREA)

Abstract

The invention discloses a kind of unpowered riverside landscape wet land water quality purification systems, including the grille well and landscape wetland building on the inside of revetment, grille well is arranged between revetment and landscape wetland, and it is connected with low side under landscape wetland, landscape wetland is by regulating and storing unit, steel perforation top plate positioned at regulating and storing unit upper end, Wetland Substrate layer and the wetland plant that is planted on Wetland Substrate layer above steel perforation top plate are constituted, fiber carrier filler is loaded in regulating and storing unit, the percent opening 65-75% of steel perforation top plate, regulating and storing unit inner bottom surface is equipped with flapper by shaft, the bottom surface of flapper is affixed by the inner bottom surface of spring part and regulating and storing unit, flapper is used to control the water discharge time of drainpipe.The present invention not only remains land and afforests original landscape planting effect, and enhances the water quality purification function in river, Hu Tang, while having linked up the connection between land and water, and river, the limited landscape green space in the lake side of a pond is made to have more functions.

Description

A kind of unpowered riverside landscape wet land water quality purification system
Technical field
The present invention relates to environment protection fields, and in particular to a kind of unpowered riverside landscape wet land water quality purification system.
Background technique
For many years, hydraulic engineering using able to resisting flood and drought, riverbank safety, build uniform revetment as main target, to river Road, Hu Tang have carried out large-scale hardening stone revetment construction, so that land and water completely cuts off, water body self-purification ability is substantially reduced, even if Muddy water body phenomenon and poor water quality is also usually presented in the city landscape lake pool for not having point source pollutant to be discharged into.
Summary of the invention
To solve the above problems, the present invention provides a kind of unpowered riverside landscape wet land water quality purification system, by river, The purification of water quality of Hu Tang is combined with bank greening, and the land greening plot at the river for having hard revetment, the lake side of a pond is changed Manmade landscape, artificial landscape's wetland is built up, land is not only remained and afforests original landscape planting effect, and it is net to enhance river, the water quality of Hu Tang Change ability, while the connection between land and water has been linked up, make river, the limited landscape green space in the lake side of a pond that there are more functions.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of unpowered riverside landscape wet land water quality purification system, it is wet including the grille well building on the inside of revetment and landscape Ground, the grille well setting is connected between revetment and the landscape wetland, and with low side under the landscape wetland, described to refute It is equipped with a water inlet pipe on the bank, the front end of the water inlet pipe passes through the revetment and is connected to river, and the water inlet pipe cross section Center is located at ordinary water level, and the rear end of the water inlet pipe passes through the revetment and is connected to the grille well, and is provided in rear end First one way stop peturn valve, the water inlet at the top of the grille well are disposed with coarse rack, and inner inclination is disposed with fine fack, bottom cloth It is equipped with fitros filtering layer;
The both ends of the landscape wetland are equipped with two barricades, and the barricade lower part of front end is equipped with the through-hole being connected with grille well, The barricade arranged beneath of rear end has the drainpipe of the second one way stop peturn valve of band, and drainpipe is connected to river;
The landscape wetland is pushed up by regulating and storing unit, positioned at the steel perforation top plate of regulating and storing unit upper end, positioned at steel perforation Wetland Substrate layer above plate and the wetland plant being planted on Wetland Substrate layer are constituted, and fiber is loaded in the regulating and storing unit Carrier filler, fiber carrier filler are fixed in unit using wirerope, and loading density is 12%, the steel perforation top plate Percent opening 65-75%, pore diameter 4-6mm, the regulating and storing unit inner bottom surface are equipped with flapper, the activity by shaft The bottom surface of baffle is affixed by spring part and the inner bottom surface of the regulating and storing unit, and the flapper setting unidirectionally stops second The water inlet side for returning valve, for controlling the water discharge time of drainpipe.
Further, the Wetland Substrate layer successively includes overburden layer, ecological layer of cloth, bio-matrix layer from top to bottom.
Further, the Wetland Substrate layer bottom surface has reinforcing network along surrounding side wrap.
Further, the bio-matrix is porous soft structures, and with a thickness of 10-5cm, root system of plant can be penetrated, energy Enough form good water body Micro-power cycle and biofiltration effect;The ecological fabric is non woven structure, is had permeable Root not through soil the characteristics of;The overburden layer plants wetland plant with a thickness of 5-8cm.
Further, the spacing of the coarse rack is 7-11mm.
Further, fine fack inclination 60-75 degree angle is mounted in grille well.
Further, the barricade is fluid-tight solid wall.
Further, filter screen is installed in the through-hole.
The invention has the following advantages:
By the purification of water quality of river, Hu Tang, with bank, greening is combined, and will have the river of hard revetment, the lake side of a pond Plot reconstruction is afforested into artificial landscape wetland in land, not only remains land and afforests original landscape planting effect, and enhances river The purification of water quality ability in road, Hu Tang, while the connection between land and water has been linked up, there is river, the limited landscape green space in the lake side of a pond More functions.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of unpowered riverside landscape wet land water quality purification system of the embodiment of the present invention.
Fig. 2 is the sectional view of Fig. 1.
Figure label: 1- coarse rack;2- Wetland Substrate layer;3- barricade;4- regulating and storing unit;5- revetment;6- grille well;7- is thin Grid;8- water inlet pipe;The first one way stop peturn valve of 9-;10- fitros filtering layer;11- spring part;12- flapper;13- second is unidirectional Check-valves;14- drainpipe;15- steel perforation top plate;16- landscape wetland.
Specific embodiment
In order to which objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further It is described in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair It is bright.
As Figure 1-Figure 2, the embodiment of the invention provides a kind of unpowered riverside landscape wet land water quality purification system, packets Include the grille well 6 and landscape wetland 16 for building the inside of revetment 5 in, the setting of grille well 6 revetment 5 and the landscape wetland 16 it Between, and be connected with the lower low side of the landscape wetland 16, the revetment 5 is equipped with a water inlet pipe 8, the front end of the water inlet pipe 8 It is connected to across the revetment 5 with river, and the center of 8 cross section of the water inlet pipe is located at ordinary water level, after the water inlet pipe 8 End is connected to across the revetment 5 with the grille well 6, and the first one way stop peturn valve 9 is provided in rear end, and the grille well 6 pushes up The water inlet in portion is disposed with coarse rack 1, and the spacing of the coarse rack 1 is 7-11mm, and inner inclination is disposed with fine fack 7, described Fine fack 7 tilts 60-75 degree angle and is mounted in grille well 1, installs with the direction opposite side that rainwater flows into, bottom is disposed with filter Stone filtering layer 10, fitros filtering layer are 3-5cm;
The both ends of the landscape wetland 16 are equipped with two barricades 3, and the barricade 3 is fluid-tight solid wall, the barricade 3 of front end Lower part is equipped with the through-hole being connected with grille well 6, is equipped with filter screen in the through-hole, 3 arranged beneath of barricade of rear end has band The drainpipe 14 of second one way stop peturn valve 13, drainpipe 14 are connected to river;First one way stop peturn valve and second unidirectionally stops Return the contrary of valve;Preferably, one filter screen is installed in the water inlet of the second one way stop peturn valve, avoids the second one way stop peturn valve Blocking.
The landscape wetland 16 by regulating and storing unit 4, positioned at 4 upper end of regulating and storing unit steel perforation top plate 15, be located at steel The Wetland Substrate layer 2 of 15 top of perforation top plate and the wetland plant being planted on Wetland Substrate layer 2 are constituted, the regulating and storing unit Fiber carrier filler is loaded in 4, fiber carrier filler is fixed in unit using wirerope, and loading density is 12%, the steel The percent opening 65-75% of system perforation top plate 15, pore diameter 4-6mm, 4 inner bottom surface of regulating and storing unit are equipped with work by shaft The bottom surface of dynamic baffle 12, the flapper 12 is affixed by spring part 11 and the inner bottom surface of the regulating and storing unit 4, the work The water inlet side of the second one way stop peturn valve 13 is arranged in dynamic baffle 12, for controlling the water discharge time of drainpipe 14.
The Wetland Substrate layer 2 successively includes overburden layer, ecological layer of cloth, bio-matrix layer from top to bottom.The wetland base 2 bottom surface of matter layer has reinforcing network along surrounding side wrap.The bio-matrix is porous soft structures, with a thickness of 10-5cm, Root system of plant can penetrate, and be capable of forming good water body Micro-power cycle and biofiltration effect;The ecological fabric is non-volume Structure is knitted, has the characteristics that permeable root not through soil;The overburden layer plants wetland plant with a thickness of 5-8cm.
This specific implementation utilizes the effect of water wave, the eutrophy river water of river, Hu Tang is introduced be embedded in revetment into In water pipe;The most of river water for being introduced into water inlet pipe pours in grille well by the first one way stop peturn valve of pipe end of intaking, through lattice Enter regulating and storing unit together with rainwater after fitros layer filtering in grid well, regulating and storing unit bottom is upwardly formed up-flow, by steel System perforation top plate flows into humidity hypothallus, is made up of the wetland plant and regulating and storing unit of well developed root system and wetland microorganism The synergistic purification effect of the ecosystem is realized to the sufficiently cleaned up of river water, realizes the function in self-purging river, lake pool water quality.? When water in regulating and storing unit reaches certain capacity, flapper can be pressed downward, so that part water is through the second one way stop peturn valve Drainpipe is poured in, flows into river through drainpipe.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (8)

1. a kind of unpowered riverside landscape wet land water quality purification system, which is characterized in that including the grid building on the inside of revetment (5) Well (6) and landscape wetland (16), the grille well (6) are arranged between revetment (5) and the landscape wetland (16), and with it is described Low side is connected under landscape wetland (16), and the revetment (5) is equipped with a water inlet pipe (8), and the front end of the water inlet pipe (8) passes through The revetment (5) is connected to river, and the center of the water inlet pipe (8) cross section is located at ordinary water level, the water inlet pipe (8) Rear end passes through the revetment (5) and is connected to the grille well (6), and the first one way stop peturn valve (9), the lattice are provided in rear end Water inlet at the top of grid well (6) is disposed with coarse rack (1), and inner inclination is disposed with fine fack (7), and bottom is disposed with fitros filtering layer (10);
The both ends of the landscape wetland (16) are equipped with barricade (3), and barricade (3) lower part of front end is equipped with to be connected with grille well (6) Through-hole, barricade (3) arranged beneath of rear end has the drainpipe (14) of the second one way stop peturn valve of band (13), drainpipe (14) and river Road connection;
The landscape wetland (16) is perforated top plate (15) by regulating and storing unit (4), the steel positioned at regulating and storing unit (4) upper end, is located at Wetland Substrate layer (2) and the wetland plant that is planted on Wetland Substrate layer (2) above steel perforation top plate (15) are constituted, institute It states and loads fiber carrier filler in regulating and storing unit (4), fiber carrier filler is fixed in unit using wirerope, is loaded density and is 12%, the percent opening 65-75% of steel perforation top plate (15), pore diameter 4-6mm, regulating and storing unit (4) inner bottom surface It is equipped with flapper (12) by shaft, the bottom surface of the flapper (12) passes through spring part (11) and the list of regulating and storing The inner bottom surface of first (4) is affixed, and flapper (12) setting is arranged in the water inlet side of the second one way stop peturn valve (13) for control The water discharge time of water pipe (14).
2. a kind of unpowered riverside landscape wet land water quality purification system as described in claim 1, it is characterised in that: the wetland Hypothallus (2) successively includes overburden layer, ecological layer of cloth, bio-matrix layer from top to bottom.
3. a kind of unpowered riverside landscape wet land water quality purification system as described in claim 1, it is characterised in that: the wetland Hypothallus (2) bottom surface has reinforcing network along surrounding side wrap.
4. a kind of unpowered riverside landscape wet land water quality purification system as claimed in claim 2, it is characterised in that: the life Object matrix is porous soft structures, and with a thickness of 10-5cm, root system of plant can be penetrated, and be capable of forming good water body Micro-power cycle With biofiltration effect;The ecological fabric is non woven structure, has the characteristics that permeable root not through soil;The overburden layer With a thickness of 5-8cm, wetland plant is planted.
5. a kind of unpowered riverside landscape wet land water quality purification system as described in claim 1, it is characterised in that: the thick lattice The spacing of grid (1) is 7-11mm.
6. a kind of unpowered riverside landscape wet land water quality purification system as described in claim 1, it is characterised in that: the thin lattice Grid (7) inclination 60-75 degree angle is mounted in grille well (6).
7. a kind of unpowered riverside landscape wet land water quality purification system as described in claim 1, it is characterised in that: the barricade It (3) is fluid-tight solid wall.
8. a kind of unpowered riverside landscape wet land water quality purification system as described in claim 1, it is characterised in that: the through-hole Filter screen is inside installed.
CN201811608091.1A 2018-12-27 2018-12-27 A kind of unpowered riverside landscape wet land water quality purification system Pending CN109516565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811608091.1A CN109516565A (en) 2018-12-27 2018-12-27 A kind of unpowered riverside landscape wet land water quality purification system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811608091.1A CN109516565A (en) 2018-12-27 2018-12-27 A kind of unpowered riverside landscape wet land water quality purification system

Publications (1)

Publication Number Publication Date
CN109516565A true CN109516565A (en) 2019-03-26

Family

ID=65797416

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811608091.1A Pending CN109516565A (en) 2018-12-27 2018-12-27 A kind of unpowered riverside landscape wet land water quality purification system

Country Status (1)

Country Link
CN (1) CN109516565A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111960621A (en) * 2020-09-17 2020-11-20 苏州天瑞环境科技有限公司 Rainwater treatment rapid infiltration system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104005364A (en) * 2014-06-17 2014-08-27 盐城上善环境科技有限公司 Unpowered river bank landscape wet land water quality purification system
CN104926040A (en) * 2015-06-24 2015-09-23 哈尔滨工业大学 High-water-content bi-flow sponge wetland system for rain purification, regulation, storage and recycling and method of rain purification, regulation, storage and recycling
DE102015013574A1 (en) * 2014-10-16 2016-04-21 Clemens Erbacher PLATFORM FOR THE BACTERIAL NITRIFICATION OF WATER AND / OR FOR THE GROWING OF NON-ORGANIC PLANT CULTURES OVER WATERPROOF AND WET-WATER AREAS
CN107761900A (en) * 2017-09-30 2018-03-06 武汉圣禹排水系统有限公司 It is a kind of to carry the double shunting wells of flap gate including the drainage system of the shunting well and water discharge control method
CN207228495U (en) * 2017-10-09 2018-04-13 深圳市艺越装饰工程有限公司 A kind of roof water storage structure
CN108797750A (en) * 2018-05-04 2018-11-13 河北水利电力学院 A kind of town road water discharge method
CN209259786U (en) * 2018-12-27 2019-08-16 长春工程学院 A kind of unpowered riverside landscape wet land water quality purification system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104005364A (en) * 2014-06-17 2014-08-27 盐城上善环境科技有限公司 Unpowered river bank landscape wet land water quality purification system
DE102015013574A1 (en) * 2014-10-16 2016-04-21 Clemens Erbacher PLATFORM FOR THE BACTERIAL NITRIFICATION OF WATER AND / OR FOR THE GROWING OF NON-ORGANIC PLANT CULTURES OVER WATERPROOF AND WET-WATER AREAS
CN104926040A (en) * 2015-06-24 2015-09-23 哈尔滨工业大学 High-water-content bi-flow sponge wetland system for rain purification, regulation, storage and recycling and method of rain purification, regulation, storage and recycling
CN107761900A (en) * 2017-09-30 2018-03-06 武汉圣禹排水系统有限公司 It is a kind of to carry the double shunting wells of flap gate including the drainage system of the shunting well and water discharge control method
CN207228495U (en) * 2017-10-09 2018-04-13 深圳市艺越装饰工程有限公司 A kind of roof water storage structure
CN108797750A (en) * 2018-05-04 2018-11-13 河北水利电力学院 A kind of town road water discharge method
CN209259786U (en) * 2018-12-27 2019-08-16 长春工程学院 A kind of unpowered riverside landscape wet land water quality purification system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111960621A (en) * 2020-09-17 2020-11-20 苏州天瑞环境科技有限公司 Rainwater treatment rapid infiltration system

Similar Documents

Publication Publication Date Title
CN208235696U (en) Rainwater garden system based on sponge ecosystem water purification
CN108385819B (en) River course side enhanced ecological system with regulation, storage and landscape functions
Margolis et al. Living systems: innovative materials and technologies for landscape architecture
CN211080099U (en) Ecological river bank protection
CN110761241B (en) City river course ecology defense
CN208563250U (en) A kind of river channel ecology shore protection
CN106869076A (en) It is a kind of can restoration of the ecosystem lake basins ingoing river river course structure
CN110316829A (en) The method of constructing module Eco-Island progress river corridor restoration
CN107954576A (en) A kind of unpowered staged ecological revetment cleaning system in river
CN201037128Y (en) Adjustable undercurrent artificial wet land sewage treatment system
CN112391997A (en) Ecological river bank structure for sponge city construction
CN107996196A (en) A kind of LID trees pond
CN208717855U (en) A kind of combined type shore protection containing ecological habitat
CN108612047B (en) Ecological repairing structure of river and lake bank slope
CN210945249U (en) Natural revetment ecological purification system
CN108547254A (en) A kind of river channel ecology shore protection and its construction method
CN209259786U (en) A kind of unpowered riverside landscape wet land water quality purification system
CN205133351U (en) Modular river bank biological purification system
CN109516565A (en) A kind of unpowered riverside landscape wet land water quality purification system
JP2008255664A (en) Water retentive roadbed structure
CN211057724U (en) Hydro-fluctuation belt ecological slope protection system coping with hydrological changes
CN108328744A (en) Three-stage ecological pond for treating farmland non-point source pollution based on sponge ecological system
CN208202111U (en) A kind of landscape type water purification with the transformation of sandstone hole is regulated and stored system
KR101390357B1 (en) River bank proteciton method having water-purifying function
KR20200106251A (en) Ecological case with reinforcing plate

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination