CN105254021B - The method that a kind of utilization country fair area ditch pool ecosystem purifies the multiple sewage in country fair area - Google Patents
The method that a kind of utilization country fair area ditch pool ecosystem purifies the multiple sewage in country fair area Download PDFInfo
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- CN105254021B CN105254021B CN201510821137.8A CN201510821137A CN105254021B CN 105254021 B CN105254021 B CN 105254021B CN 201510821137 A CN201510821137 A CN 201510821137A CN 105254021 B CN105254021 B CN 105254021B
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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
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Abstract
The invention belongs to water process field of environmental technology, and in particular to the method that a kind of utilization country fair area ditch pool ecosystem purifies the multiple sewage in country fair area.Present invention process builds based on water correction, with restoration of the ecosystem as core, takes into account the country fair area ditch pool system purification of water quality Introduction of The Comprehensive Regulating Works of landscape lifting by the integrated and optimization to restoration of the ecosystem combination techniques such as country fair area ditch pool form renovation technique, country fair area ditch pool water system connection technology, Sediment rehabilitation renovation technique, aquatic animals and plants recovery technology, aquatic plant floating bed reinforcement techniques.The method can significantly improve country fair area ditch pool quality of water environment, realize the combination of purification of water quality and landscape lifting.The waste of Xu Qu soils and water resource is not only effectively reduced, the input of government's material resources, financial resources and manpower in the environmental improvement of country fair area is also substantially reduced.And, present invention process is directed to multiple contaminant water of the country fair area ditch pool by pollutions such as agricultural area source, industrial point source, cities and towns life in the countryside and early-stage rainwaters.
Description
Technical field
The present invention relates to water process field of environmental technology, it is more particularly to a kind of using the purification country fair of the country fair area ditch pool ecosystem
The method of the multiple sewage in area.
Background technology
Xu Qu is circle country fair fill, resists flood, the area being engaged in agricultural production., because of hypsography low-lying, the ditch pool is numerous, water for Xu Qu
Amount is larger.But with the irrational utilization in the fast-developing of industrial or agricultural, the raising of living standards of the people and soil, in the country fair area ditch pool
A large amount of clear water before become by widespread pollution from the overuse of fertilizers and pesticides in rural area, industrial point-source pollution, cities and towns life in the countryside pollution and early-stage rainwater already
The multiple contaminant water of pollution etc., causes water quality deterioration, the decline of aquatic animals and plants diversity, the ecosystem of the country fair area ditch pool ecosystem
System is degenerated, self-purification capacity is lost, it is impossible to is effectively intercepted pollution, be increased the loads of nutrition into lake.Therefore, country fair area ditch pool ecosystem
Unite to the improvement of lake pollution has vital effect with control.
Country fair area Gou Tang, be mostly form because of physical features, natural or artificial ditch relatively independent, with certain function or
The pool, is initially used to field irrigation or pond culture etc..With the development of agricultural modernization and rural urbanization, many ditches or
The pool has been no longer used and abandoned, and ditch pool water distributes evil because being increasingly becoming " stagnant water " without the reason such as mobility and many heavily contaminateds
It is smelly, have a strong impact on country fair area environment and people's lives.Additionally, tend to agricultural irrigation the structure of modern ecological irrigation canals and ditches more, not
The original ditch pool in country fair area uses, and also without the purification of country fair area ditch pool water, causes the waste of soil and water resource.Therefore, utilize
The country fair area ditch pool ecosystem purification multiple sewage in country fair area was both economic and environment-friendly, and ecological beauty.
The content of the invention
It is an object of the invention to provide the method that a kind of utilization country fair area ditch pool ecosystem purifies the multiple sewage in country fair area.It is logical
Various Integration ofTechnologies are crossed, it is simple and easy to apply, it is easy to operate, the multiple sewage in country fair area is effectively purified, fundamentally improve water quality, improve water
The self-purification capacity of body, while the landscape effect of General Promotion country fair area ditch pool system.
In order to achieve the above object, present invention employs following technical measures：
The method that a kind of utilization country fair area ditch pool ecosystem purifies the multiple sewage in country fair area, comprises the following steps：
1) the form transformation on the country fair area ditch pool is connected with water system：
Form is transformed：Cut out and directly take curved, the ditch pool water channel of original straight line is transformed into cranky form, compared with cell
Domain can make small S-shaped into, make into large area flexuose snakelike.
Water system is connected：A large amount of scattered ditches, the pool connect by ditching or laying culvert pipe in Ji Baxu areas；
Impeller is set up at S types ditch, snakelike ditch or the pool under water 0.5-1.0m, makes water body flow, activation；
2) Sediment rehabilitation on the country fair area ditch pool and transformation：Laid including dredging silt and gravel band；
Sediment Dredging, by ditch pool bed mud cutouts, retains bed mud in 0.8-1.3m；
Bed mud is too shallow or is unfavorable for very much the plantation of later stage water plant, fixation deeply and takes root.
Gravel band is laid in S types or snakelike ditch, and each gravel strip length is 0.8-1.3, the elevation of adjacent gravel band
Difference is 20cm, and the distance of adjacent gravel band is 2m, is one group with 2 gravel bands or multiple gravel bands, according to the length and shape of ditch
State carries out one or more groups of layings；
The laying of gravel band can form the substrate of different height, bring up depth beach under water, form water wave, increase water body
Oxygen content.
Preferably, by step 1) and step 2), the oxygen content of water body is 5-15mg/L.
3) side slope nursing on the country fair area ditch pool and reinforcing：The side slope closed on water is reinforced using eco-concrete technology,
Cattail or reed are planted in gap, other side slope parts can shrub, draft combination plantation；
Described shrub is one or more combination in winter jasmine, Chinese rose, Chinese littleleaf box, cuckoo, Loropetalum wood, matrimony vine；
Described draft is one or more combination in Bermuda grass, vetiver, rye grass, Salvia japonica.
4) plantation and management of country fair area ditch pool water plant：Plantation including emergent aquactic plant, floatingleaved plant and submerged plant
With management.Emergent aquactic plant includes cattail, reed, calamus, thaliadeabata, arrowhead, mullet grass, is planted in the waters of water level 30-50cm；
Floatingleaved plant includes water lily, wild water chestnut, is planted in the waters of water level 50-80cm；
Submerged plant includes comb tooth bog pondweed, Haloragidaceae Myriophyllum spicatum, hornwort, eel grass, is planted in the water of water level 80-150cm
Domain；Water plant takes the form that brood body is transplanted to plant；The prevention and control of final-period management including pest and disease damage, the timely harvesting of residuum,
Second Year water plant is reseeded or the excessive removal of density.
5) country fair area ditch pool aquatic animal being put in a suitable place to breed and managing：Including toward delivering snail, shellfish in the country fair area ditch pool ,-as often put down
Square rice puts kind of a spiral shell 0.1-0.5kg, shellfish 0.5-1.0kg in a suitable place to breed.
6) structure of the biological reinforced reactor in the country fair area ditch pool and maintenance：In waters of the water level more than 1.5m, using pure plastics
Mould builds 2m long, the rectangle aquatic plant floating bed of width 1m, and one is set at interval of 2.0m；Safeguard and be mainly Aquatic-Plant Bed
With the management of water plant, it is identical with the water plant management of the country fair area ditch pool.
Fig. 1 is the ditch pool water system schematic diagram that method of the present invention builds.
Compared with prior art, the present invention has advantages below：
Present invention process changes by country fair area ditch pool form renovation technique, country fair area ditch pool water system connection technology, Sediment rehabilitation
The integrated of the restoration of the ecosystem combination techniques such as technology, aquatic animals and plants recovery technology, aquatic plant floating bed reinforcement technique and optimization are made,
Build based on water correction, with restoration of the ecosystem as core, take into account the country fair area ditch pool system purification of water quality synthesis of landscape lifting
Training works.The method can significantly improve country fair area ditch pool quality of water environment, realize organic knot of purification of water quality and landscape lifting
Close.The waste of Xu Qu soils and water resource is not only effectively reduced, government material resources, financial resources in the environmental improvement of country fair area are also substantially reduced
With the input of manpower.And, present invention process is directed to the country fair area ditch pool by agricultural area source, industrial point source, cities and towns life in the countryside
And the multiple contaminant water of the pollution such as early-stage rainwater.
Brief description of the drawings
The Tu1Xu areas ditch pool ecosystem purification multiple sewage top view schematic diagram in country fair area.
Tu2Xu areas ditch pool Sediment rehabilitation and transformation sectional view；
Upper figure is that gravel band achievements depth beach under water is directly laid in bottom；
Figure below is to repave gravel band after bottom is cut the earth to bring up depth beach under water；
Arrow represents water (flow) direction.
Specific embodiment
Embodiment 1：
The method that a kind of utilization country fair area ditch pool ecosystem purifies the multiple sewage in country fair area, comprises the following steps：
The big country fair of ox horn that the present embodiment method is implemented on Baohe District of Hefei City Yan Dun streets is western, southwest according to sending river embankment,
In the Jun Yuxu areas of other directions farming region, residential block etc. close to.Area Gou Tang is blazoned, pollution of area source in country fair area, sanitary sewage, just
Phase rainwater etc. is entered by irrigation canals and ditches from area northwest end is implemented, from southeast end by being flowed out after the ecosystem purified treatment of the ditch pool.Control
Before reason, it is in ecosystem state that method implements area, weedy, and water peanut overgrows in the ditch pool causes subregion alluvial marsh
Change, the ditch pool blocks, it is impossible to flow, and emits bad smell and (do not transform preceding data TN 2.35mg/L, TP 0.98mg/L, chlorophyll
205.5mg/m3).More than ditch pool depth capacity 2m.The present invention was applied to the extensive of the big Xu Gou pools ecosystem of ox horn in 2014
It is multiple, 1-3 month earth excavations, Sediment Dredging, base reform, the connection of the ditch pool, form transformation；April aquatic animals and plants are planted；The 5-10 months
The operation of continuous 6 months.
It is as follows using the specific method of the country fair area ditch pool ecosystem purification multiple sewage in country fair area using the present invention：
1) the form transformation on the country fair area ditch pool is connected with water system：
Sanction directly takes curved：The ditch pool water channel of straight line is transformed into cranky form, small S-shaped can be made into smaller area,
Can make into large area flexuose snakelike.
Water system is connected：The a large amount of scattered ditches of Xu Qu, the pool are connected by ditching or laying culvert pipe, and on ditch, the pool
Interior erection impeller (under water at 0.5-1.0m) (QDT1.5/4-1400/2-36P low speed pushing flow devices, Shanghai Si Maite pumps industry manufacture
Co., Ltd), make water body flow, activation；In the present embodiment, water volume flow rate is controlled to control in 0.4-1.2m/s using impeller.
The Sediment rehabilitation on the country fair area ditch pool and transformation：
Sediment Dredging, by ditch pool bed mud cutouts, retains bed mud in 1.0m, too shallow or too deep be unfavorable for that the later stage is aquatic
The plantation of plant, fixation and take root.
Gravel band is laid in ditch (in S types or snakelike ditch), and one is set at interval of 2m, and each length is 1.0m, phase
Adjacent two difference in level of gravel band are 20cm, form the substrate of different height, bring up depth beach under water, form current ripple
Wave, increases oxygen content of water.
Through the water volume flow rate control and the laying of gravel band of step (1) and (2) so that the oxygen content of water body is in 6-10mg/L
In the range of.
3) side slope nursing on the country fair area ditch pool and reinforcing：The side slope closed on water is reinforced using eco-concrete technology,
Planting composition ratio is 1 in gap:The cattail of 1 (a number ratio, similarly hereinafter) and reed, other side slope part shrubs, draft are combined
Plantation；.
Described shrub is winter jasmine, Chinese rose, Chinese littleleaf box, Loropetalum wood, matrimony vine, and allocation ratio is 2:2:2:1:2；
Described draft is Bermuda grass, Salvia japonica, rye grass, and allocation ratio is 3:1:2；Shrub draft is mashed up, outside shrub
Bare area all lays turf.
4) plantation and management of country fair area ditch pool water plant：Plantation including emergent aquactic plant, floatingleaved plant and submerged plant
With management.Emergent aquactic plant is cattail, reed, thaliadeabata, and allocation ratio is 1:1:1, it is planted in the waters of water level 30-50cm；
Floatingleaved plant is water lily, wild water chestnut, and allocation ratio is 2:1, it is planted in the waters of water level 50-80cm；
Submerged plant is comb tooth bog pondweed, Haloragidaceae Myriophyllum spicatum, hornwort, eel grass, and allocation ratio is 1:1:1:1, it is planted in
The waters of water level 80-150cm.
Water plant takes the form that brood body is transplanted to plant；It is the prevention and control of water plant final-period management including pest and disease damage, residual
The timely harvesting of body, Second Year water plant are reseeded or the excessive removal of density.
5) country fair area ditch pool aquatic animal being put in a suitable place to breed and managing：It is main to include dispensing snail, shellfish etc. toward the country fair area ditch pool,
In the present embodiment, every square metre is put in a suitable place to breed river snail kind spiral shell 0.2kg, Corbicula fluminea 0.5kg.
6) structure of the biological reinforced reactor in the country fair area ditch pool and maintenance：In waters of the water level more than 1.5m, using pure plastics
Mould builds 2m long, the rectangle aquatic plant floating bed of width 1m, and one is set at interval of 2.0m；Safeguard that being mainly water plant floats
Bed and the management of water plant, it is identical with water plant management.
It is below the country fair area 5-10 month water inlets and each index situation of delivery port after the present embodiment method is transformed：
In May, 2014, water volume flow rate 0.5m/s, entrance：TN 0.98mg/L, TP 0.34mg/L, chlorophyll 25.5mg/
m3；Outlet：TN 0.77mg/L, TP 0.26mg/L, chlorophyll 10.2mg/m3；
In June, 2014, water volume flow rate 0.7m/s, entrance：TN 1.19mg/L, TP 0.14mg/L, chlorophyll 33.9mg/
m3；Outlet：TN 0.40mg/L, TP 0.01mg/L, chlorophyll 8.5mg/m3；
In July, 2014, water volume flow rate 1.0m/s, entrance：TN 1.80mg/L, TP 0.06mg/L, chlorophyll 130.8mg/
m3；Outlet：TN 0.33mg/L, TP 0.01mg/L, chlorophyll 15.3mg/m3。
In August, 2014, water volume flow rate 1.1m/s, entrance：TN 1.98mg/L, TP 0.04mg/L, chlorophyll 33.5mg/
m3；Outlet：TN 0.27mg/L, TP 0.01mg/L, chlorophyll 5.9mg/m3。
In September, 2014, water volume flow rate 0.8m/s, entrance：TN 0.90mg/L, TP 0.17mg/L, chlorophyll 40.3mg/
m3；Outlet：TN 0.31mg/L, TP 0.04mg/L, chlorophyll 8.6mg/m3。
In October, 2014, water volume flow rate 0.6m/s, entrance：TN 0.95mg/L, TP 0.24mg/L, chlorophyll 25.1mg/
m3；Outlet：TN 0.39mg/L, TP 0.06mg/L, chlorophyll 4.3mg/m3。
The log of continuous 6 months shows that the country fair area ditch pool ecosystem is higher to the purification efficiency of the multiple sewage in country fair area.
Claims (2)
1. the method that a kind of utilization country fair area ditch pool ecosystem purifies the multiple sewage in country fair area, comprises the following steps：
1) the form transformation on the country fair area ditch pool is connected with water system：
Form is transformed：Cut out and directly take curved, the ditch pool water channel of original straight line is transformed into cranky form, change in smaller area
Into small S-shaped, make into large area flexuose snakelike；
Water system is connected：A large amount of scattered ditches, the pool connect by ditching or laying culvert pipe in Ji Baxu areas；
Impeller is set up at S types ditch, snakelike ditch or the pool under water 0.5-1.0m, makes water body flow, activation；
2) Sediment rehabilitation on the country fair area ditch pool and transformation：Laid including dredging silt and gravel band；
Sediment Dredging, by ditch pool bed mud cutouts, retains bed mud in 0.8-1.3m；
Gravel band is laid in S types or snakelike ditch, and each gravel strip length is 0.8-1.3m, and the depth displacement of adjacent gravel band is
20cm, the distance of adjacent gravel band is 2m, is one group with 2 gravel bands or multiple gravel bands, and the length and form according to ditch are entered
The one or more groups of laying of row；
3) side slope nursing on the country fair area ditch pool and reinforcing：The side slope closed on water is reinforced using eco-concrete technology, gap
In plant cattail or reed, other side slope parts can shrub, draft combine plantation；
Described shrub is one or more combination in winter jasmine, Chinese rose, Chinese littleleaf box, cuckoo, Loropetalum wood, matrimony vine；
Described draft is one or more combination in Bermuda grass, vetiver, rye grass, Salvia japonica；
4) plantation and management of country fair area ditch pool water plant：Plantation and pipe including emergent aquactic plant, floatingleaved plant and submerged plant
Reason；Emergent aquactic plant includes cattail, reed, calamus, thaliadeabata, arrowhead, mullet grass, is planted in the waters of water level 30-50cm；Floating leaf
Plant includes water lily, wild water chestnut, is planted in the waters of water level 50-80cm；
Submerged plant includes comb tooth bog pondweed, Haloragidaceae Myriophyllum spicatum, hornwort, eel grass, is planted in the waters of water level 80-150cm；Water
Plant takes the form that brood body is transplanted to plant；Final-period management includes prevention and control, the timely harvesting of residuum, the Second Year of pest and disease damage
Water plant is reseeded or the excessive removal of density；
5) country fair area ditch pool aquatic animal being put in a suitable place to breed and managing：Including toward dispensing snail, shellfish in the country fair area ditch pool, every square metre is put in a suitable place to breed
Plant spiral shell 0.1-0.5kg, shellfish 0.5-1.0kg；
6) structure of the biological reinforced reactor in the country fair area ditch pool and maintenance：In waters of the water level more than 1.5m, using pure plastic mould
2m long, the rectangle aquatic plant floating bed of width 1m are built, one is set at interval of 2.0m；Safeguard and be mainly Aquatic-Plant Bed and water
The management of plant, it is identical with the water plant final-period management of the country fair area ditch pool.
2. method according to claim 1, by step 1) and 2) after, the oxygen content of water body is 5-15mg/L.
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| CN111847648A (en) * | 2020-07-21 | 2020-10-30 | 中国水产科学研究院渔业机械仪器研究所 | Method for repairing self-cleaning function of trench |
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