CN102963974A - Ecological restoration method of slow flow reuse water riverway - Google Patents
Ecological restoration method of slow flow reuse water riverway Download PDFInfo
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- CN102963974A CN102963974A CN2012104306271A CN201210430627A CN102963974A CN 102963974 A CN102963974 A CN 102963974A CN 2012104306271 A CN2012104306271 A CN 2012104306271A CN 201210430627 A CN201210430627 A CN 201210430627A CN 102963974 A CN102963974 A CN 102963974A
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- unhurried current
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention relates to an ecological restoration method of slow flow reuse water riverway. According to the invention, a bionic filler zone and a submerged plant zone are constructed at a slow flow reuse water riverway; and biological accelerant is added at the early stage of establishment of the engineering to shorten the maturity time for an ecological purification system. River water with reuse water as a supplement water source is purified on the riverway, so that main indexes of water quality of the riverway water are upgraded from grade one emission standard A to surface water standard V.
Description
Technical field
The invention belongs to field of environment engineering, be specifically related to a kind of unhurried current reuse water river channel ecology restorative procedure.
Background technology
Along with the raising of socioeconomic development and the level of urbanization, the city river water surrounding runs down, many river courses even become the blowdown channel.The deterioration of city river water quality and view has had a strong impact on the peripheral common people's orthobiosis, needs badly effectively and administers.Yet because pollutant sources is complicated, ecological basic flow is not enough, and self-purification capacity is low, flood season the factors such as The water is deep and the current fast impact, city river is administered and is had certain difficulty.Particularly for unhurried current sclerosis steep rivers, how to administer is the technical barrier that faces at present.
River regulation technology commonly used comprises: the engineering measures such as desilting, water transfer, section dirt, artificial oxygenation; Coagulating sedimentation, medicament kill the physics and chemistry methods such as algae; Recover aquatic vegetation, arrange artificial floating island, put the ecological restoring method such as filter-feeding hydrocoles in a suitable place to breed.Utilizing ecological reestablishment to administer city river is present comparatively popular Pollution abatement technology, than traditional public works measure and physics, chemical process, ecological reestablishment have cost saving, effective, disturb less to external world and do not have or the plurality of advantages such as secondary pollution seldom.
Present ecological reestablishment concentrates on riverside zone mostly to be carried out, and Main Means has ecological revetment transformation, aquatic vegetation to rebuild plant floating bed layout etc.For some sclerosis sloping bank river course, consider river flood control safety, the part ecological reestablishment whether dispute on by applicable still the existence necessarily, the high bar emergent plantation in emphasis flood control section riverbank flinty slope ecological reconstruction and two sides may affect flood control safety, in addition, upright hard abrupt slope also is difficult to carry out ecological reconstruction.In addition, ecological reestablishment still face at present startup slowly, easily be disturbed, the problem such as effect is unstable.Take kind of planting submerged plant as example, set up the impact that submerged vegetation is faced with the factors such as bed mud redox environment, water transparency, water-level fluctuation, fish disturbance.
Because the complicacy of river regulation, a simple class technology is difficult to produce a desired effect, and multiple reparation means should be carried out effective integration, and take ecological reestablishment as main, integrated multiple control measures step by step, carry out the comprehensive regulation to the river course by different level.
Summary of the invention
The present invention is directed on upright abrupt slope, adopt three light urban hard unhurried current river courses of reuse water moisturizing how to carry out this technical barrier of restoration of the ecosystem, propose a kind of unhurried current reuse water river channel ecology restorative procedure.By the present invention, make up respectively bionic filler district and submerged plant district in unhurried current a certain section, reuse water river course, on the river course, to purifying take the river water of reuse water as the moisturizing water source, make the main water-quality guideline of river water body rise to surface water V class standard from one-level A emission standard.
For achieving the above object, technical scheme concrete steps of the present invention are as follows:
(1) chooses three light urban hards unhurried current river courses on one section upright abrupt slope, reconnoitre this unhurried current river course, this section river course is cut dirt renovate, guarantee to administer in the scope of section and enter without sewage;
(2) make up the bionic filler district at unhurried current river course upstream region, the bionic filler diameter that described bionic filler district adopts is 100-150mm, the many group series connection in the unhurried current river course of described bionic filler are arranged perpendicular to the riverbank, every group of bionic filler fixed by hawser, the hawser two ends lie in respectively the riverbank and are positioned on the stake bar at unhurried current center, river course, and the stake bar links to each other by the pile foundation of bolt bottom the unhurried current river course; By the setting of pile foundation, reserve snakelike navigation channel without the bionic filler layout in the unhurried current river course; Perpendicular to the riverbank direction, control biomimetics filler spacing is 100-150mm, is being parallel to the riverbank direction, and control biomimetics filler spacing is 5-10m.
(3) be close to the bionic filler district submerged plant district is set, it is the gravel of 10-20mm that diameter is laid in this bottom, section, and the suitable submerged vegetation of gravel bed height 20-30cm(such as river course substrate makes up, and can not lay); Gravel bed top kind planting submerged plant.
Among the present invention, step is set up the initial stage in the bionic filler district in (2), evenly applies Biostimulation agent in this zone, promotes the indigenous microorganism growth, accelerates the filling surface Biofilm formation, effectively improves this regional Ecology situation.
Among the present invention, described Biostimulation agent adopts commercially available compound enzymic preparation, it contains multiple biological enzyme (such as amylase, lipase, proteolytic enzyme, cellulase and urase), amino acid and trace element, can improve the dissolved oxygen levels of water body, strengthen the metabolic ability of indigenous microorganism, so that protozoon and metazoan are increased, effectively promote the formation of bionic filler surface biological film.
Among the present invention, described submerged plant is adopted in hornwort, hydrilla verticillata, eel grass or the large najas marina more than one.
Among the present invention, described submerged plant planting density be the 20-30 clump/square metre.
Among the present invention, described bionical underfill material adopts discoid fabric filler.
Among the present invention, the bionic filler district is mainly used in improving and stabilizing water quality because the bionic filler specific surface area is larger, suitable various microorganic adhesion, filling surface behind for some time attached biological film, effective various pollutents in the purifying water body.Biostimulation agent contains multiple biological enzyme (amylase, lipase, proteolytic enzyme, cellulase, urase), amino acid and trace element, can improve the dissolved oxygen levels of water body, strengthen the metabolic ability of indigenous microorganism, so that protozoon and metazoan are increased, effectively promote the formation of bionic filler surface biological film.The unhurried current water body very easily breaks out blue-green alga bloom, by setting up submerged vegetation, utilizes Allelopathic Effect in Plants, can reduce the probability that algal bloom occurs.But, the successful reconstruction of submerged vegetation should be based upon on the prerequisite of partial habitat improvement.The foundation in bionic filler district, upstream is conducive to optimize the water ecological environment in submerged plant district, downstream, can significantly improve the success ratio that submerged vegetation is rebuild, and is convenient to give full play to cleaning action and the allelopathy of submerged plant.
During flood season, in order not hinder river course flood, pack up the bionic filler that hangs on the hawser, remove in case of necessity the stake bar that is arranged on the river course each point pile foundation in the river course.
The present invention has following beneficial effect:
The present invention is directed to three light urban hards unhurried current river courses of upright abrupt slope, the moisturizing of employing reuse water, propose to make up the resolution in bionic filler district and submerged plant district, and throw in by Biostimulation agent at the engineering initial stage of setting up, shorten the ripe required time of ecological purification system.The bionic filler district is mainly used in improving and stabilizing water quality, filling surface behind for some time attached biological film, effective various pollutents in the purifying water body, the water ecological environment in optimization submerged plant district, downstream.Biostimulation agent can improve the dissolved oxygen levels of water body, strengthens the metabolic ability of indigenous microorganism, effectively promotes the formation of bionic filler surface biological film.The cleaning action in submerged plant district and allelopathy can reduce the probability that algal bloom appears in the unhurried current water body.The present invention adopts original position ecological management technology, need not river is drawn the river course water system, can directly process water body on the river course, has reduced sewage transhipment link, and can avoid causing secondary pollution.
Description of drawings
Fig. 1 is the construction cross-section cutaway view in bionic filler district in the embodiment of the invention.
Fig. 2 is the construction section plan view in bionic filler district in the embodiment of the invention.
Fig. 3 is the construction cross-section cutaway view in submerged plant district in the embodiment of the invention.
Number in the figure: 1 is hawser, and 2 is bionic filler, and 3 is pile foundation, and 4 is the stake bar, and 5 is the navigation channel, and 6 is gravel bed, and 7 is submerged plant.
Embodiment
Precondition of the invention process is that the two sides, river course are finished a section dirt substantially, and reuse water or the water body that more cleans are the main nourishment source of this section.
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment 1: choose three light urban hard unhurried current river courses on certain one section upright abrupt slope, city, reuse water is the main nourishment source of this section, the about 20m of river width, and the river water body flow velocity is about 0.1m/s, and ordinary water level is in 50cm.By reconnoitring this river channel sewage intercepting situation, find to enter without sewage in the scope of improvement section.
Make up the bionic filler district at the section upstream region, bionic filler 2 diameter 150mm by hawser 1 carry, arrange 20 fillers perpendicular to the riverbank direction approximately on the hawser 1, the hawser two ends lie in respectively on the stake bar 4 at riverbank and center, river course, and stake bar 4 links to each other by the pile foundation 3 of bolt with the bottom, river course.By the setting of pile foundation 3, reserve snakelike navigation channel 5 without the filler layout in the river course.Perpendicular to the riverbank direction, bionic filler 2 spacings are 150mm, are parallel to the riverbank direction, and bionic filler 2 spacings are 5-10m.
The district sets up the initial stage at bionic filler, evenly applies Biostimulation agent in this zone, and described Biostimulation agent adopts the A-ZYME product of Green Erect company, and injected volume is 1-5g/ square metre.
The submerged plant district is close to the bionic filler district and makes up, and at first laying diameter in this section is the gravel of 10-20mm, the highly about 25cm of gravel bed 6.3 kinds of submerged plants 7 take gravel as carrier-planting are chosen hornwort, hydrilla verticillata and eel grass as pioneer species, submerged plant 7 planting densities be the 20-30 clump/square metre.
Through administering, algal bloom is not broken out the whole year in this unhurried current section, and monitoring result shows that section water body ammonia nitrogen, total phosphorus and COD concentration all reach surface water V class standard.
Claims (5)
1. unhurried current reuse water river channel ecology restorative procedure is characterized in that concrete steps are as follows:
(1) chooses three light urban hards unhurried current river courses on one section upright abrupt slope, this section river course is cut dirty the regulation;
(2) make up the bionic filler district at unhurried current river course upstream region, the bionic filler diameter that described bionic filler district adopts is 100-150mm, the many group series connection in the unhurried current river course of described bionic filler are arranged perpendicular to the riverbank, every group of bionic filler fixed by hawser, the hawser two ends lie in respectively the riverbank and are positioned on the stake bar at unhurried current center, river course, and the stake bar links to each other by the pile foundation of bolt bottom the unhurried current river course; By the setting of pile foundation, reserve snakelike navigation channel without the bionic filler layout in the unhurried current river course; Perpendicular to the riverbank direction, control biomimetics filler spacing is 100-150mm, is being parallel to the riverbank direction, and control biomimetics filler spacing is 5-10m;
(3) be close to the bionic filler district submerged plant district is set, it is the gravel of 10-20mm that diameter is laid in this bottom, section, and gravel bed height 20-30cm when substrate suitable submerged vegetation in river course makes up, does not lay gravel bed; Gravel bed top kind planting submerged plant.
2. unhurried current reuse water river channel ecology restorative procedure according to claim 1 is characterized in that setting up the initial stage in the bionic filler district in the step (2), evenly applies Biostimulation agent in this zone.
3. unhurried current reuse water river channel ecology restorative procedure according to claim 1 is characterized in that described submerged plant adopts in hornwort, hydrilla verticillata, eel grass or the large najas marina more than one.
4. unhurried current reuse water river channel ecology restorative procedure according to claim 1, it is characterized in that described submerged plant planting density be the 20-30 clump/square metre.
5. unhurried current reuse water river channel ecology restorative procedure according to claim 1 is characterized in that described bionical underfill material adopts discoid fabric filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104306271A CN102963974B (en) | 2012-11-02 | 2012-11-02 | Ecological restoration method of slow flow reuse water riverway |
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| CN2012104306271A CN102963974B (en) | 2012-11-02 | 2012-11-02 | Ecological restoration method of slow flow reuse water riverway |
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| CN102963974A true CN102963974A (en) | 2013-03-13 |
| CN102963974B CN102963974B (en) | 2013-11-13 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621628A (en) * | 2015-12-30 | 2016-06-01 | 天津市雷鸣生态科技有限公司 | River and lake sewage governing method |
| CN105668918A (en) * | 2016-01-11 | 2016-06-15 | 江苏百灵天地环境设计研究院有限公司 | Urban hard riverway modular multi-system coupled ecological restoration system |
| CN106561526A (en) * | 2017-01-03 | 2017-04-19 | 东源县绿地美生态农业发展有限公司 | Method for building ecological quacultural pool |
| CN107188311A (en) * | 2017-04-22 | 2017-09-22 | 江西怡杉环保股份有限公司 | The ecological restoring method of polluted river water |
| CN109056670A (en) * | 2018-09-20 | 2018-12-21 | 长江水利委员会长江科学院 | A kind of imitative nature fish pass based on bionic plant |
| CN111087076A (en) * | 2019-12-19 | 2020-05-01 | 南京大学盐城环保技术与工程研究院 | Chemical industry park heavy pollution river channel treatment system and river channel ecological restoration method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002239572A (en) * | 2001-02-20 | 2002-08-27 | Fujii Kiso Sekkei Jimusho:Kk | Layered soil type river water cleaning apparatus |
| CN201553647U (en) * | 2009-08-21 | 2010-08-18 | 同济大学 | Compound ecological floating bed |
| CN102603078A (en) * | 2012-04-16 | 2012-07-25 | 江南大学 | Method for restoring water body in black and stinking rivers |
-
2012
- 2012-11-02 CN CN2012104306271A patent/CN102963974B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002239572A (en) * | 2001-02-20 | 2002-08-27 | Fujii Kiso Sekkei Jimusho:Kk | Layered soil type river water cleaning apparatus |
| CN201553647U (en) * | 2009-08-21 | 2010-08-18 | 同济大学 | Compound ecological floating bed |
| CN102603078A (en) * | 2012-04-16 | 2012-07-25 | 江南大学 | Method for restoring water body in black and stinking rivers |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105621628A (en) * | 2015-12-30 | 2016-06-01 | 天津市雷鸣生态科技有限公司 | River and lake sewage governing method |
| CN105668918A (en) * | 2016-01-11 | 2016-06-15 | 江苏百灵天地环境设计研究院有限公司 | Urban hard riverway modular multi-system coupled ecological restoration system |
| CN106561526A (en) * | 2017-01-03 | 2017-04-19 | 东源县绿地美生态农业发展有限公司 | Method for building ecological quacultural pool |
| CN107188311A (en) * | 2017-04-22 | 2017-09-22 | 江西怡杉环保股份有限公司 | The ecological restoring method of polluted river water |
| CN109056670A (en) * | 2018-09-20 | 2018-12-21 | 长江水利委员会长江科学院 | A kind of imitative nature fish pass based on bionic plant |
| CN111087076A (en) * | 2019-12-19 | 2020-05-01 | 南京大学盐城环保技术与工程研究院 | Chemical industry park heavy pollution river channel treatment system and river channel ecological restoration method |
| CN111087076B (en) * | 2019-12-19 | 2022-05-24 | 南京大学盐城环保技术与工程研究院 | Chemical industry park heavy pollution river channel treatment system and river channel ecological restoration method |
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Granted publication date: 20131113 Termination date: 20161102 |