CN105254021A - Method for purifying polder area multiple sewage by using polder area ditch-pond ecological system - Google Patents
Method for purifying polder area multiple sewage by using polder area ditch-pond ecological system Download PDFInfo
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- CN105254021A CN105254021A CN201510821137.8A CN201510821137A CN105254021A CN 105254021 A CN105254021 A CN 105254021A CN 201510821137 A CN201510821137 A CN 201510821137A CN 105254021 A CN105254021 A CN 105254021A
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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 belongs to the field of water treatment environmental technologies, and in particular relates to a method for purifying polder area multiple sewage by using a polder area ditch-pond ecological system. According to the process provided by the invention, by virtue of integration and optimization of ecological restoration combination technologies including a polder area ditch-pond form transformation technology, a polder area ditch-pond water system communication technology, a foundation base repair and transformation technology, an aquatic animal and plant restoration technology, an aquatic plant floating bed strengthening technology and the like, a polder area ditch-pond system water purification comprehensive improvement engineering, which takes water quality improvement as a basis and ecological restoration as a core and also gives attention to landscape promotion, is constructed. The method can significantly improve the environmental quality of polder area ditch-pond water to realize organic combination of water purification and landscape promotion, thereby not only effectively reducing wastes of polder area soil and water resources, but also significantly reducing material resource, money resource and manpower inputs on polder area environmental management by government. Moreover, the process provided by the invention aims at purifying the multiple sewage, which is polluted by agricultural surface sources, industrial point sources, town and rural lives and initial rainwater, in polder area ditches and ponds.
Description
Technical field
The present invention relates to water treatment field of environmental technology, more specifically relate to a kind of method utilizing the multiple sewage in ecosystem purification country fair district, the ditch pool, country fair district.
Background technology
Xu Qu is circle country fair fill, resists flood, the area of being engaged in agricultural production.Xu Qu is because of hypsography low-lying, and the ditch pool is numerous, and the water yield is larger.But along with the irrational utilization in the fast development of industrial or agricultural, the raising of living standards of the people and soil, a large amount of clear water before in the ditch pool, country fair district become the multiple contaminates water 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 pollution etc. already, the water quality deterioration of the ditch pool, the country fair district ecosystem, the decline of aquatic animals and plants diversity, ecosystem degradation, self-purification capacity is caused to lose, effectively can not tackle pollution, add the loads of nutrition into lake.Therefore, the ditch pool, the country fair district ecosystem has vital effect to the improvement of lake pollution and control.
Country fair district Gou Tang, be mostly because of physical features form, relatively independent, the natural or artificial ditch with certain function or the pool, be used for field irrigation or pond culture etc. at first.Along with the development of agricultural modernization and rural urbanization, the no longer abandoned by using of a lot of ditch or the pool, ditch pool water, because becoming gradually " stagnant water " without the reason such as mobility and multiple contaminates, distributes stench, has a strong impact on country fair district environment and people's lives.In addition, the structure of modern ecological irrigation canals and ditches tends to agricultural irrigation more, original for country fair district ditch pool is not used, and does not also have the ditch pool water purification of country fair district, causes the waste of soil and water resources.Therefore, the ditch pool, the country fair district ecosystem purification multiple sewage in country fair district both economic environmental protection, again ecological beauties are utilized.
Summary of the invention
The object of the present invention is to provide a kind of method utilizing the multiple sewage in ecosystem purification country fair district, the ditch pool, country fair district.Integrated by multiple technologies, simple, easy to operate, effectively the multiple sewage in purification country fair district, fundamentally improves water quality, improves the self-purification capacity of water body, simultaneously the landscape effect of General Promotion country fair district ditch pool system.
In order to achieve the above object, present invention employs following technical measures:
Utilize a method for the multiple sewage in ecosystem purification country fair district, the ditch pool, country fair district, comprise the following steps:
1) the form transformation on the ditch pool, country fair district is communicated with water system:
Form is transformed: namely cut out and directly get curved, the ditch pool water channel of original straight line is transformed into cranky form, can making little S shape into compared with zonule, make into compared with large regions flexuose snakelike.
Water system is communicated with: ditch, the pool of a large amount of dispersion in Ji Baxu district are communicated with to get up by ditching or laying culvert pipe;
On S type ditch, snakelike ditch or the pool, the impeller of 0.5-1.0m place erection under water, makes water body flow, activation;
2) Sediment rehabilitation on the ditch pool, country fair district and transformation: comprise dredging silt and gravel band is laid;
Sediment Dredging, by ditch pool bed mud cutouts, retains bed mud at 0.8-1.3m;
Bed mud is too shallow or be too deeply all unfavorable for the plantation, fixing and take root of later stage waterplant.
Gravel band is laid in S type or snakelike ditch, each gravel strip length is 0.8-1.3, and the difference of elevation of adjacent gravel band is 20cm, and the distance of adjacent gravel band is 2m, be one group with 2 gravel bands or multiple gravel band, carry out one or more groups laying according to the length of ditch and form;
The laying of gravel band can form the substrate of different heights, brings up depth beach under water, forms water wave, increases water body oxygen level.
Preferably, through step 1) and step 2), the oxygen level of water body is 5-15mg/L.
3) side slope nursing on the ditch pool, country fair district and reinforcing: the side slope of closing on water utilizes eco-concrete technology to reinforce, and plants cattail or reed in gap, other side slope parts shrub, draft can combine plantation;
Described shrub is one or more combinations in winter jasmine, Chinese rose, Chinese littleleaf box, cuckoo, Loropetalum wood, matrimony vine;
Described draft is one or more combinations in Bermuda grass, Caulis Miscanthis floriduli, rye grass, Salvia japonica Thunb..
4) plantation of the ditch pool, country fair district waterplant and management: comprise emergent, the plantation of floatingleaved plant and submerged plant and management.Emergent comprises cattail, reed, calamus, again power flower, arrowhead, mullet grass, is planted in the waters of water level 30-50cm; Floatingleaved plant comprises water lily, wild water chestnut, is planted in the waters of water level 50-80cm;
Submerged plant comprises comb tooth Herba potamogetonis distincti, Haloragidaceae Myriophyllum spicatum, hornwort, eel grass, is planted in the waters of water level 80-150cm; The form plantation that waterplant takes propagulum to transplant; Final-period management comprise the prevention and control of disease and pest, the timely harvesting of residual body, Second Year waterplant reseed or density is excessive removes.
5) the putting in a suitable place to breed and managing of the ditch pool, country fair district hydrocoles: comprise and throw in snail, shellfish in the ditch pool, country fair district ,-as every square metre put kind of a spiral shell 0.1-0.5kg in a suitable place to breed, shellfish 0.5-1.0kg.
6) structure of the biological reinforced reactor in the ditch pool, country fair district and maintenance: in the waters of water level more than 1.5m, utilize pure mould of plastics to build the rectangle aquatic plant floating bed of long 2m, wide 1m, arrange at interval of 2.0m; Safeguard the management of mainly Aquatic-Plant Bed and waterplant, manage identical with the ditch pool, country fair district waterplant.
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 the following advantages:
Present invention process is by integrated and optimization to restoration of the ecosystem combination techniques such as the ditch pool, country fair district form renovation technique, the ditch pool, country fair district water system connection technology, Sediment rehabilitation renovation technique, aquatic animals and plants recovery technology, aquatic plant floating bed intensifying technologys, and to build based on water correction, with restoration of the ecosystem be core, take into account the ditch pool, the country fair district system purification of water quality Introduction of The Comprehensive Regulating Works that view promotes.The method significantly can improve the ditch pool, country fair district quality of water environment, realizes the combination that purification of water quality and view promote.Not only effectively reduce the waste of Xu Qu soil and water resources, also significantly reduce the input of government material resources, financial resources and manpower in the environmental improvement of country fair district.And, present invention process for the multiple contaminates water that pollutes by agricultural area source, industrial point source, cities and towns life in the countryside and early-stage rainwater etc. of the ditch pool, Shi Xu district.
Accompanying drawing explanation
Ecosystem purification country fair district, the ditch pool, Tu1Xu district multiple sewage vertical view schematic diagram.
The ditch pool, Tu2Xu district Sediment rehabilitation and transformation sectional view;
Upper figure is that depth beach under water brought up by the direct gravel band of laying in bottom;
Figure below repaves gravel band after cutting the earth in bottom to bring up depth beach under water;
Arrow represents water (flow) direction.
Embodiment
Embodiment 1:
Utilize a method for the multiple sewage in ecosystem purification country fair district, the ditch pool, country fair district, comprise the following steps:
The large country fair of ox horn that the present embodiment method is implemented on Yan Dun street, Baohe District of Hefei City is western, and southwest is according to sending river embankment, the next-door neighbour such as farming region, Residential areas in Jun Yuxu district, other direction.This district Gou Tang blazons, and in country fair district, pollution of area source, sanitary sewage, early-stage rainwater etc. are entered from enforcement northwest, district end by irrigation canals and ditches, flow out after the ecosystem purifying treatment of the ditch pool from southeast end.Before improvement, it is ecosystem state that method implements district, weedy, water peanut overgrows and causes subregion alluvial paludification in the ditch pool, and the ditch pool blocks, and cannot flow, and emit bad smell (not transforming front data TN2.35mg/L, TP0.98mg/L, chlorophyll 205.5mg/m3).The ditch pool more than full depth 2m.The present invention was applied to the recovery of the ox horn large Xu Gou pool ecosystem in 2014,1-3 month soil excavation, Sediment Dredging, base reform, the ditch pool are communicated with, form transformation; Aquatic animals and plants plantation in April; The operation of continuous 6 months of the 5-10 month.
The present invention is adopted to utilize the concrete grammar of the multiple sewage in ecosystem purification country fair district, the ditch pool, country fair district as follows:
1) the form transformation on the ditch pool, country fair district is communicated with water system:
Cut out directly get curved: the ditch pool water channel of straight line is transformed into cranky form, little S shape can be being made into compared with zonule, can make into compared with large regions flexuose snakelike.
Water system is communicated with: the ditch disperseed in a large number by Xu Qu, the pool are communicated with by ditching or laying culvert pipe, and in ditch, the pool, set up impeller (under water 0.5-1.0m place) (QDT1.5/4-1400/2-36P low speed pushing flow device, Shanghai Si Maite Beng Ye Manufacturing Co., Ltd), make water body flow, activation; In the present embodiment, use impeller to control water volume flow rate and control at 0.4-1.2m/s.
The Sediment rehabilitation on the ditch pool, country fair district and transformation:
Sediment Dredging, by ditch pool bed mud cutouts, retains bed mud at 1.0m, too shallow or be too deeply all unfavorable for the plantation, fixing and take root of later stage waterplant.
Gravel band is laid in ditch (S type or snakelike ditch in), and arrange one at interval of 2m, each length is 1.0m, the difference in level of adjacent two gravel bands is 20cm, forms the substrate of different heights, brings up depth beach under water, form water wave, increase water body oxygen level.
Water volume flow rate through step (1) and (2) controls and the laying of gravel band, makes the oxygen level of water body within the scope of 6-10mg/L.
3) side slope nursing on the ditch pool, country fair district and reinforcing: the side slope of closing on water utilizes eco-concrete technology to reinforce, in gap, planting composition ratio is a 1:1 (number ratio, cattail down together) and reed, other side slope part shrubs, draft combine 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 Thunb., rye grass, and allocation ratio is 3:1:2; Shrub draft is mixed to be taken, and the outer bare area of shrub all lays turf.
4) plantation of the ditch pool, country fair district waterplant and management: comprise emergent, the plantation of floatingleaved plant and submerged plant and management.Emergent is cattail, reed, again power flower, and allocation ratio is 1:1:1, is planted in the waters of water level 30-50cm;
Floatingleaved plant is water lily, wild water chestnut, and allocation ratio is 2:1, is planted in the waters of water level 50-80cm;
Submerged plant is comb tooth Herba potamogetonis distincti, Haloragidaceae Myriophyllum spicatum, hornwort, eel grass, and allocation ratio is 1:1:1:1, is planted in the waters of water level 80-150cm.
The form plantation that waterplant takes propagulum to transplant; Waterplant final-period management comprise the prevention and control of disease and pest, the timely harvesting of residual body, Second Year waterplant reseed or density is excessive removes.
5) the putting in a suitable place to breed and managing of the ditch pool, country fair district hydrocoles: mainly comprise and throw in snail, shellfish etc. in the ditch pool, country fair district, in the present embodiment, put river snail kind spiral shell 0.2kg in a suitable place to breed, Corbicula fluminea 0.5kg for every square metre.
6) structure of the biological reinforced reactor in the ditch pool, country fair district and maintenance: in the waters of water level more than 1.5m, utilize pure mould of plastics to build the rectangle aquatic plant floating bed of long 2m, wide 1m, arrange at interval of 2.0m; Safeguard the management of mainly aquatic plant floating bed and waterplant, manage identical with waterplant.
Be below by after the transformation of the present embodiment method, this country fair district 5-10 month water inlet and each index situation of water outlet:
In May, 2014, water volume flow rate 0.5m/s, entrance: TN0.98mg/L, TP0.34mg/L, chlorophyll 25.5mg/m
3; Outlet: TN0.77mg/L, TP0.26mg/L, chlorophyll 10.2mg/m
3;
In June, 2014, water volume flow rate 0.7m/s, entrance: TN1.19mg/L, TP0.14mg/L, chlorophyll 33.9mg/m
3; Outlet: TN0.40mg/L, TP0.01mg/L, chlorophyll 8.5mg/m
3;
In July, 2014, water volume flow rate 1.0m/s, entrance: TN1.80mg/L, TP0.06mg/L, chlorophyll 130.8mg/m
3; Outlet: TN0.33mg/L, TP0.01mg/L, chlorophyll 15.3mg/m
3.
In August, 2014, water volume flow rate 1.1m/s, entrance: TN1.98mg/L, TP0.04mg/L, chlorophyll 33.5mg/m
3; Outlet: TN0.27mg/L, TP0.01mg/L, chlorophyll 5.9mg/m
3.
In September, 2014, water volume flow rate 0.8m/s, entrance: TN0.90mg/L, TP0.17mg/L, chlorophyll 40.3mg/m
3; Outlet: TN0.31mg/L, TP0.04mg/L, chlorophyll 8.6mg/m
3.
In October, 2014, water volume flow rate 0.6m/s, entrance: TN0.95mg/L, TP0.24mg/L, chlorophyll 25.1mg/m
3; Outlet: TN0.39mg/L, TP0.06mg/L, chlorophyll 4.3mg/m
3.
The operating records of continuous 6 months shows, the ditch pool, the country fair district purification efficiency of the ecosystem to the multiple sewage in country fair district is higher.
Claims (2)
1. utilize a method for the multiple sewage in ecosystem purification country fair district, the ditch pool, country fair district, comprise the following steps:
1) the form transformation on the ditch pool, country fair district is communicated with water system:
Form is transformed: namely cut out and directly get curved, the ditch pool water channel of original straight line is transformed into cranky form, can making little S shape into compared with zonule, make into compared with large regions flexuose snakelike;
Water system is communicated with: ditch, the pool of a large amount of dispersion in Ji Baxu district are communicated with to get up by ditching or laying culvert pipe;
On S type ditch, snakelike ditch or the pool, the impeller of 0.5-1.0m place erection under water, makes water body flow, activation;
2) Sediment rehabilitation on the ditch pool, country fair district and transformation: comprise dredging silt and gravel band is laid;
Sediment Dredging, by ditch pool bed mud cutouts, retains bed mud at 0.8-1.3m;
Gravel band is laid in S type or snakelike ditch, each gravel strip length is 0.8-1.3, and the difference of elevation of adjacent gravel band is 20cm, and the distance of adjacent gravel band is 2m, be one group with 2 gravel bands or multiple gravel band, carry out one or more groups laying according to the length of ditch and form;
3) side slope nursing on the ditch pool, country fair district and reinforcing: the side slope of closing on water utilizes eco-concrete technology to reinforce, and plants cattail or reed in gap, other side slope parts shrub, draft can combine plantation;
Described shrub is one or more combinations in winter jasmine, Chinese rose, Chinese littleleaf box, cuckoo, Loropetalum wood, matrimony vine;
Described draft is one or more combinations in Bermuda grass, Caulis Miscanthis floriduli, rye grass, Salvia japonica Thunb.;
4) plantation of the ditch pool, country fair district waterplant and management: comprise emergent, the plantation of floatingleaved plant and submerged plant and management;
Emergent comprises cattail, reed, calamus, again power flower, arrowhead, mullet grass, is planted in the waters of water level 30-50cm; Floatingleaved plant comprises water lily, wild water chestnut, is planted in the waters of water level 50-80cm;
Submerged plant comprises comb tooth Herba potamogetonis distincti, Haloragidaceae Myriophyllum spicatum, hornwort, eel grass, is planted in the waters of water level 80-150cm;
The form plantation that waterplant takes propagulum to transplant; Final-period management comprise the prevention and control of disease and pest, the timely harvesting of residual body, Second Year waterplant reseed or density is excessive removes;
5) the putting in a suitable place to breed and managing of the ditch pool, country fair district hydrocoles: comprise and throw in snail, shellfish in the ditch pool, country fair district ,-as every square metre put kind of a spiral shell 0.1-0.5kg in a suitable place to breed, shellfish 0.5-1.0kg;
6) structure of the biological reinforced reactor in the ditch pool, country fair district and maintenance: in the waters of water level more than 1.5m, utilize pure mould of plastics to build the rectangle aquatic plant floating bed of long 2m, wide 1m, arrange at interval of 2.0m; Safeguard the management of mainly Aquatic-Plant Bed and waterplant, manage identical with the ditch pool, country fair district waterplant.
2. method according to claim 1, through step 1) and 2) after, the oxygen level of water body is for being 5-15mg/L.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512828A (en) * | 2017-09-22 | 2017-12-26 | 中国科学院武汉植物园 | Riparian Zone and storehouse bank are transformed with depression to cut down the method for water body nitrogen and phosphorus pollution |
| CN107892393A (en) * | 2017-12-04 | 2018-04-10 | 北控水务(中国)投资有限公司 | A kind of phytomicroorganism coupled mode pond pool ecology corridor water purification system and application process |
| CN107996058A (en) * | 2017-12-07 | 2018-05-08 | 合肥郑国生物科技有限公司 | A kind of method for recovering the economic vegetation of protective embankments in lakeside areas ditch pool system ecology |
| CN109160611A (en) * | 2018-10-16 | 2019-01-08 | 水利部中国科学院水工程生态研究所 | A kind of multi-stage eco-ponds system for collecting processing suitable for small watershed in mountain non-point pollution |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107892393B (en) * | 2017-12-04 | 2023-11-21 | 北控水务(中国)投资有限公司 | Plant-microorganism coupling type ecological corridor water purification system and application method |
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| CN109160611A (en) * | 2018-10-16 | 2019-01-08 | 水利部中国科学院水工程生态研究所 | A kind of multi-stage eco-ponds system for collecting processing suitable for small watershed in mountain non-point pollution |
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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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