CN102219304B - Method for ecologically improving water quality of water delivery type lake - Google Patents

Method for ecologically improving water quality of water delivery type lake Download PDF

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Publication number
CN102219304B
CN102219304B CN201110043701XA CN201110043701A CN102219304B CN 102219304 B CN102219304 B CN 102219304B CN 201110043701X A CN201110043701X A CN 201110043701XA CN 201110043701 A CN201110043701 A CN 201110043701A CN 102219304 B CN102219304 B CN 102219304B
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China
Prior art keywords
permeable
water
lake
gabion
timber
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CN201110043701XA
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CN102219304A (en
Inventor
王超
王沛芳
侯俊
钱进
杨传清
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Hohai University HHU
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Hohai University HHU
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    • 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

The invention relates to a method for ecologically improving the water quality of a water delivery type lake. In the method, frame outlines of water-permeable diversion piers, water-permeable spur dikes and water-permeable diversion walls are respectively formed in the lake; rubbles are arranged outside wood piles; gabions are arranged on the inner sides of the wood piles; gravels are filled among the gabions to form the water-permeable diversion piers, the water-permeable diversion walls and the water-permeable spur dikes; the water-permeable diversion piers are arranged at an inlet of the lake; and the water-permeable spur dikes and the water-permeable diversion walls are continuously staggered along the direction of water current. According to the method, the defects that the engineering quantity is large, the treatment expense is high, secondary pollution is easily caused, the symptoms not the causes are addressed, and the like are overcome; the water-permeable diversion piers, the water-permeable spur dikes, the water-permeable spur dikes and the water-permeable diversion walls are sequentially arranged in the lake, so that a water body in the lake is fully exchanged, the hydraulic retention time is prolonged, the water quality purification is enhanced, the silt settling effect is improved and the flow speed is reduced; the method can be used for creating environments which are more suitable for organisms to live in, enriching species and facilitating the recovery of a biological system; and the method has the advantages of simpleness for operation, convenience for construction, stable functions and low construction cost.

Description

Water quality ecological improvement method is swung in water delivery type lake
Technical field
The present invention relates to a kind of water delivery type lake and swing water quality ecological improvement method, belong to water bodies of rivers and lakes and purify and the restoration of the ecosystem field.
Background technology
The place of the passage of being not only flood passage and the flood of regulating and storing is swung in the lake, also is important carrier and the ecological barrier of water resources.For a long time, people lay particular stress on the development and use that swing in the lake, and ignore management and protection, cause the lake to swing the water quality severe exacerbation, and the water surrounding that swing in the lake is seriously damaged.Swing in water delivery type lake, and one of its major function is to carry preferably water body of water quality, and its water quality quality is the important factor that affect effect of water delivery, so water quality is swung in water delivery type lake improve and seem particularly important.
Before the present invention, environmental recovery technique is swung in the lake mainly can be divided into the technology of controlling exogenous pollution, technology, the algae control techniques of eliminating endogenous pollution.Technology and the pipeline of control exogenous pollution cut dirty technology concerning middle-size and small-size lake, and the investment amount is too large, complex management, in addition China how treatment technology is still immature after to primary rainwater closure.Eliminate the technology of endogenous pollution and can effectively remove nutritional substance, but the degree of depth that the bed mud of controlling well excavates prevents from that more nutritive substance from discharging to be not easy that the while quantities is large from bottom, processing costs is also higher, is easy to cause secondary pollution to cure the symptoms, not the disease.The algae control techniques adds chemical agent can kill algae fast, but secondary pollution that dead algae produces is larger to the negative impact of the whole ecosystem, and life-time service can make algae develop immunity to drugs.
Summary of the invention
Purpose of the present invention just is to overcome the defective of technological method, and water quality ecological improvement method is swung in development water delivery type lake.
Technical scheme of the present invention is:
Water quality ecological improvement method is swung in water delivery type lake, and its major technique step is:
(1) swing interior appropriate location in the lake and beat some timbers and be fixed on the lakebed, these wood pile cluster edges are streamlined, form respectively the frame profiles of permeable diversion pier, permeable spur, permeable shunting wall;
(2) place jackstone in the timber outside, lay gabion in the inboard, between gabion, put full rubble, form permeable diversion pier and permeable shunting wall;
(3) place jackstone in the timber outside, lay gabion in the inboard and form permeable spur;
(4) described permeable diversion pier is located at the lake and is swung the ingress; Described permeable spur and permeable shunting wall arrange continuously along water (flow) direction is staggered, and spacing is 1.5~2.5 times of dam length between permeable spur and the permeable shunting wall, with this method until put full lake and swing.
Advantage of the present invention and effect are by setting gradually permeable guide's pier at Hu Dangzhong, permeable spur, and permeable spur, permeable shunting wall can make the lake swing interior water body and fully exchange, and does not have the dead angle; Increase hydraulic detention time, strengthen the purification of water quality; Increase the sediment settlement effect, hold back silt, high sediment charge water body is had preferably regulation effect; Reduce flow velocity, can build the environment that is more suitable for biological existence, enrich species, be conducive to the reparation of the ecosystem; Present method does not affect the original function in river, and simple to operate, easy construction, and function-stable, cheap.
The present invention proposes the ecological method that water correction is swung in a kind of water delivery type lake, realizes the unification of clean dirt and ecological functions.Make up permeable guide's pier in the riverbed, permeable spur, permeable shunting wall device, so that river water enters the lake swing after, the lake is swung interior water body and is fully exchanged, and increases hydraulic detention time, improve quality of water environment, can reduce flow velocity, hold back silt, high sediment charge water body is had preferably regulation effect, can build diversified riverbank habitat, be conducive to the reparation of the ecosystem.
Description of drawings
Fig. 1---structural representation of the present invention.
Fig. 2---permeable diversion pier shown in the A-A and permeable shunting wall sectional schematic diagram among Fig. 1.
Fig. 3---the sectional schematic diagram of permeable spur shown in the B-B among Fig. 1.
Number in the figure represents:
Timber 1, gabion 2, galvanized wire 3, reed 4, willow bundle 5, jackstone 6, rubble 7, permeable diversion pier 8, permeable spur 9, permeable shunting wall 10.
Embodiment
Technical thought of the present invention is:
Make up permeable water conservancy diversion and Ecosystem restoration system, comprise permeable guide's pier, permeable spur, permeable shunting wall device.After river water enters the lake and swings, at first through permeable diversion pier shunting, entering the lake after part water body directly purifies through permeable diversion pier swings, another part is walked around permeable diversion pier and is entered the lake and swing, promote the lake to swing interior water body exchange, increase water body hydraulic detention time in the river, effectively improve water quality.Secondly, by the loke shore both sides permeable spur is set, promotes that silt is heavy in the river, fall the lake and swing the water volume flow rate reduction, be conducive to form multifarious Biotope Landscape.Again, by permeable shunting wall in the lake water body is shunted, fully exchanged so that water body is swung in river water and lake.Again, further purify water by loke shore both sides permeable spur, formation is confluxed.At last, shunt by permeable diversion pier, promote the lake to swing interior water body exchange, finally pollutent is thoroughly removed from river system.
Describe below in conjunction with figure.
As shown in Figure 1, 2, 3:
At first prefabricated timber 1 and gabion 2, swing the mid-way, ingress in the lake and beat successively timber 1 according to " convex shape " every 500mm, it is streamlined that the edge is, be fixed on the riverbed, with galvanized wire 3 gabion 2 is bundled on the timber 1, the top earthing plantation reed 4 of the superiors' gabion 2, the both sides binding willow bundle 5 of reed 4, timber 1 outside is jackstone 6, put full rubble 7 between the gabion 2, form permeable diversion pier 8, the length of permeable diversion pier 8 satisfy its perpendicular to the ratio of the projecting length of elementary stream direction and stable river width less than 0.3.
Timber 1 is swung the bank along the direction that is 90 ° of angles with elementary stream drives piles successively every 500mm in the middle of swinging to the lake from the lake, surround into a circle, it is streamlined that the edge is, be fixed on the riverbed, with galvanized wire 3 gabion 2 be bundled on the timber 1, the top earthing plantation reed 4 of the superiors' gabion, the both sides binding willow bundle 5 of reed 4, timber 2 outside jackstones 6 form permeable spur 9, the dam body length of permeable spur 9 satisfy its perpendicular to the ratio of the projecting length of elementary stream direction and stable river width less than 0.3; Lay order for by the downstream upstream.
The implementation method of permeable shunting wall 10 is with permeable diversion pier 8.The mid-way is swung in the lake in the position of permeable shunting wall, and its length direction swings water (flow) direction with Yuan Hu and becomes 90 ° of angles; The ratio of length and stable river width is less than 0.3; Spacing is 1.5~2.5 times of dam length between permeable spur and the permeable shunting wall,
The formation of gabion 2 and structure: the iron wire cylinder mould of plastic-blasting, the in-built rubble of cylinder mould, the width of mesh of gabion 2 are 60~80mm.
After permeable guide's pier, permeable spur, permeable shunting wall build up, enter the water body that swings in the lake at first through permeable diversion pier shunting, enter the lake after a part of water body directly purifies through permeable diversion pier and swings, another part is walked around permeable diversion pier and is entered the lake and swing; Then, a part of water body sees through permeable spur and swing in permeable shunting wall outflow lake, and another part water body flows out the lake and swings after detouring between permeable spur and the permeable shunting wall.
By permeable guide's pier, permeable spur, the setting of permeable shunting wall, the residence time of water body in swing in the lake do not increase when having these facilities, pollutent in a part of water body has obtained permeable diversion pier simultaneously, permeable spur, and filtration and the waterplant of permeable shunting wall absorb for a long time.

Claims (6)

1. water quality ecological improvement method is swung in water delivery type lake, and its step is:
(1) swing interior appropriate location in the lake and beat some timbers and be fixed on the lakebed, these wood pile cluster edges are streamlined, form respectively the frame profiles of permeable diversion pier, permeable spur, permeable shunting wall;
(2) place jackstone in the timber outside, lay gabion in the inboard, between gabion, put full rubble, form permeable diversion pier and permeable shunting wall;
(3) place jackstone in the timber outside, lay gabion in the inboard and form permeable spur;
(4) described permeable diversion pier is located at the lake and is swung the mid-way, ingress and beat successively timber according to " convex shape " every 500mm, it is streamlined that the edge is, be fixed on the riverbed, with galvanized wire gabion is bundled on the timber, the top earthing plantation reed of the superiors' gabion, the both sides binding willow bundle of reed, the timber outside is jackstone, puts full rubble between the gabion; Described permeable spur is timber to be swung the bank along the direction that is 90 ° of angles with elementary stream drive piles successively every 500mm in the middle of swinging to the lake from the lake, surround into a circle, it is streamlined that the edge is, be fixed on the riverbed, with galvanized wire gabion is bundled on the timber, the top earthing plantation reed of the superiors' gabion, the both sides binding willow bundle of reed, timber outside jackstone; The mid-way is swung in the lake in the position of described permeable shunting wall, its length direction swings water (flow) direction with Yuan Hu and becomes 90 ° of angles, the ratio of length and stable river width is beaten timber less than 0.3, and it is streamlined that the edge is, be fixed on the riverbed, gabion is bundled on the timber top earthing plantation reed of the superiors' gabion, the both sides binding willow bundle of reed with galvanized wire, the timber outside is jackstone, puts full rubble between the gabion; Permeable spur and permeable shunting wall arrange continuously along water (flow) direction is staggered, and spacing is 1.5~2.5 times of dam length between permeable spur and the permeable shunting wall, with this method until put full lake and swing.
2. water quality ecological improvement method is swung in water delivery type according to claim 1 lake, the length that it is characterized in that permeable diversion pier in step (2) satisfy its perpendicular to the ratio of the projecting length of elementary stream direction and stable river width less than 0.3.
3. water quality ecological improvement method is swung in water delivery type according to claim 1 lake, the dam body length that it is characterized in that permeable spur (9) in step (4) satisfy its perpendicular to the ratio of the projecting length of elementary stream direction and stable river width less than 0.3.
4. water quality ecological improvement method is swung in water delivery type according to claim 1 lake, it is characterized in that timber 2m, and diameter 200mm pine is cooked stake, spacing 500mm.
5. water quality ecological improvement method is swung in water delivery type according to claim 1 lake, it is characterized in that the plastic-blasting iron wire cylinder mould that gabion adopts, and the in-built rubble of cylinder mould, the width of mesh of gabion are 60~80mm.
6. water quality ecological improvement method is swung in water delivery type according to claim 1 lake, it is characterized in that above-mentioned jackstone diameter is 200~300mm, and the rubble diameter is 150~200mm.
CN201110043701XA 2011-02-23 2011-02-23 Method for ecologically improving water quality of water delivery type lake Expired - Fee Related CN102219304B (en)

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CN103898867A (en) * 2014-03-13 2014-07-02 重庆交通大学 Spur dike, for inland waterway improvement, not connected with embankment
CN104805802B (en) * 2015-04-02 2016-10-12 山东省分析测试中心 The T-shaped dam, permeable river of a kind of artificial aquatic weed of planting and method of construction thereof
CN106930229B (en) * 2017-03-15 2019-07-12 浙江水利水电学院 A kind of small rivers intensified ecological building system
PL422056A1 (en) * 2017-06-28 2019-01-02 Mikronatura Środowiska Spółka Z Ograniczoną Odpowiedzialnością Method for complex reduction of impurities on flows and the filtering system for complex reduction of impurities on flows
CN109052664B (en) * 2018-08-27 2021-09-28 南京大学 Method for constructing novel bionic plants in front of polluted river sluice dam
CN109898473A (en) * 2018-12-11 2019-06-18 北京林业大学 Ecological permeable groynes system
CN109629508B (en) * 2019-01-11 2020-07-14 辽宁大学 Method for constructing deep pool shoal in slow flow river channel
CN110952496B (en) * 2019-12-03 2020-11-10 中国科学院地理科学与资源研究所 Urban water flow ecological guide control and diversion system
CN110904916B (en) * 2019-12-03 2020-10-16 中国科学院地理科学与资源研究所 Ecological control guide structure for water flow dead angles of cities and city groups

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JPH07204676A (en) * 1994-01-24 1995-08-08 Miyata Kankyo Sekizai:Kk Purification work for river
AUPP894699A0 (en) * 1999-02-26 1999-03-25 Ecologic Holdings Pty Ltd Improved water treatment system and method
CN101973638B (en) * 2010-11-09 2011-11-09 河海大学 Ecological percolating type water purification groin system

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