CN102561254A - River course ecological system for treating non-point source low-pollution water - Google Patents
River course ecological system for treating non-point source low-pollution water Download PDFInfo
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- CN102561254A CN102561254A CN2012100085903A CN201210008590A CN102561254A CN 102561254 A CN102561254 A CN 102561254A CN 2012100085903 A CN2012100085903 A CN 2012100085903A CN 201210008590 A CN201210008590 A CN 201210008590A CN 102561254 A CN102561254 A CN 102561254A
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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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention relates to a river course ecological system for treating non-point source low-pollution water. According to the river course ecological system, ecological dirt blocking ditches are built at the two sides outside river banks of a river course, so that non-point source high-pollution water from agricultural runoff and rural sewage cannot directly enter the river course and is prevented from being mixed with river water to form into a large amount of low-pollution water to affect the river water quality; meanwhile, estuarine artificial wetland systems are built at outlets of the ecological dirt blocking ditches to forcefully treat sewage which is guided by the ecological dirt blocking pollutant intercepting ditches to enter the river course; and three-stage ecological bank protection comprising emergent aquatic plants, wetland plantsbog plants and shrubs and arbors is built at the inner sides of the river banks of the river course so as to improve the self-purification capacity of the water body in the river course and the flood control capacity. The river course ecological system comprehensively solves the problems of collection and treatment of the non-point source low-pollution water in terms of source pollution interception enhancing, river course self-purification capacity improving and pollution outflow controlling.
Description
Technical field
The present invention relates to technical field of sewage, be specifically related to the river channel ecology system of a kind of treated side source low-pollution water.
Background technology
In recent years, along with the reinforcement of point-source pollution control dynamics, be that master's pollution of area source becomes the river and the emphasis of controlling is polluted in lake basins with domestic sewage in rural areas by using, agricultural run-off and livestock and poultry cultivation sewage.Research shows; The generation of these sewage mainly becomes positive correlation with the surface flow generation; After rainfall and upper river come water to mix; Pollutant levels in the runoff decline to a great extent, and nutritive salt in the water and carbon source claim usually that far below the standard of sanitary sewage the sewage that this type water yield is big, concentration is low is low-pollution water or micro-polluted water.Can know according to above characteristic; Low-pollution water should not use centralized biological treatment mode that it is handled; To the randomness and the complexity in pollution of area source source, adopt ecological engineering treated side source low-pollution water to be considered to comparatively effectively engineering means with suiting measures to local conditions.
Comprised by the ecological engineering treatment technology of extensive employing at present: artificial swamp treatment technology, oxidation pond technology, the bio filter is technological and soil filtration technology etc.; The basic thought of above technology is to make up microecosystems such as plant, microorganism and matrix, through synergy such as plant absorbing, microorganism decomposition, matrix absorption and chemical precipitations pollutant is degraded.Yet low carbon, low nitrogen phosphorus in the low-pollution water and the big characteristics of hydraulic load make the growth of microorganism and plant receive obvious inhibition, and physics and chemical action can't efficiently be accomplished because hydraulic detention time is short.Single Ecological Disposal engineering is difficult to solve face source low-pollution water problem at present, and the processing of face source low-pollution water is a great problem of current pollution of area source control in river and the lake basins.
Summary of the invention
The object of the invention is the difficult problem to above river and the processing of inner face source, lake basins low-pollution water; The river channel ecology system of a kind of treated side source low-pollution water is proposed; Foundation cuts the river channel ecology system of the treated side source low-pollution water that dirty ditch, ecological revetment, river mouth artificial swamp be combined to form with ecology, the present invention from strengthen the source pollute hold back, river training self-purification capacity and control pollutes collection and the handling problem that three aspects of effluenting have solved face source low-pollution water three-dimensionally.
For realizing the foregoing invention purpose, technical scheme of the present invention is following:
The invention provides the river channel ecology system of a kind of treated side source low-pollution water; This river channel ecology system comprises ecological dirty ditch, ecological revetment and the river mouth artificial swamp of cutting; Said ecology is cut dirty ditch and is positioned at the outer both sides of river course bank; Said river mouth artificial swamp is positioned at said ecology and cuts dirty ditch exit, and said ecological revetment is the stepped ecological shore protection, and said ecological revetment is positioned at two sides along the river, inboard, river course.
Preferably; Said ecology is cut dirty ditch and is adopted brick construction; Farmland and face source, rural area low-pollution water that collection produces through surface flow and cross flow mode; Said ecology is cut the size of dirty ditch according to being bigger than most water yield design, and said ecology is cut the bottom of dirty ditch and laid cement hole brick, thereby to provide the growth of microorganism environment to strengthen the water body purification ability.
Preferably, the pore size of said cement hole brick is 30mm-60mm.
Preferably, said ecological revetment is three grades of ecological revetments, is followed successively by outward from Ha Noi: one-level emergent aquactic plant shore protection, emergent aquactic plant are rooted in bed mud in river and the soil, and screening is fit to the water plant that grow in the locality, resistance to soiling is strong; Secondary hygrophyte shore protection, screening are fit to the hygrophyte that grow in the locality, resistance to soiling is strong, root system is flourishing; Three grades of shrubs and arbor shore protection select that sight is strong, the shrub and the magaphanerophytes of well developed root system, pollute cut down, the water yield is regulated and stored and fixedly play a role aspect the shore protection.
Preferably, the shore protection width at different levels of said ecological revetment are 1.0m-1.5m, and the shore protection height is decided according to river course peak level and par hydrologic regime.
Preferably, the intersection of said one-level emergent aquactic plant shore protection and bottom, river course is provided with spur stone, so that the protection toe improves the erosion resistibility of whole shore protection greatly, also can the habitat be provided for aquatile.
Preferably, the height of said secondary hygrophyte shore protection makes the hygrophyte root system can not be lower than the river ordinary water level for a long time, lays coarse sand or the soil that is used for plant establishment on the said secondary hygrophyte shore protection.
Preferably, lay coarse sand or the soil that is used for plant establishment on said three grades of shrubs and the arbor shore protection.
Preferably; Said artificial swamp adopts the group technology of oxidation pond and current wetland or oxidation pond and surface-flow; The effect of oxidation pond performance pollutant deposition and water reoxygenation, follow-up wetland will be brought into play the synergy of matrix, plant and microorganism pollutant will be removed.
Preferably; Said artificial swamp comprises wetland plant and wet land filler; Said wetland plant is selected one or more the mixing in reed, canna, cattail, the cyperus alternifolius for use, and said wet land filler is selected one or more the mixing in flyash, zeolite, dried slag, the limestone for use.
The present invention builds both sides outside the river course bank the ecological dirty ditch that cuts, and makes that the face source high-concentration sewage from agricultural run-off and country sewage does not directly get into the river course, avoids mixing with river water a large amount of low-pollution waters of formation and influences water quality of river; Cut dirty ditch exit in ecology and build the river mouth artificial wet land system; Collect the sewage that cuts dirty ditch water conservancy diversion entering through ecological; This part sewage cuts in the dirty ditch transmission course in ecology on the one hand and obtains purification to a certain degree; Getting into the lake before through artificial wet land reinforced purified treatment on the other hand, pollutant burden can access significantly and cut down; Inboard three grades of ecological revetments forming with emergent aquactic plant-hygrophyte-shrub and arbor, the self-purification of water and the flood control capacity in the river training of building in the two sides, river course.The present invention pollutes control, improves river course self-purification capacity and control and pollute and effluent that this cuts down the pollution of area source load in final entering lake aspect three three-dimensionally strengthening the source.
Description of drawings
Fig. 1 is the plan view of the river channel ecology system of treated side of the present invention source low-pollution water;
Fig. 2 is the sectional drawing of the river channel ecology system of treated side of the present invention source low-pollution water.
The specific embodiment
Pollute control embodiment with face source, basin, Erhai, Yunnan low-pollution water below and be the basis, further set forth the present invention, but protection scope of the present invention is not limited to said embodiment.
Embodiment
Rivers flowed sub-basin when present embodiment was positioned at the north, basin, Erhai, Yunnan sieve, and the Engineering Service object is that agricultural run-off, country sewage, the part feces of livestock and poultry in the basin pollutes, river, the upper reaches comes pollution of area source such as water.There are significant correlation property in the generation of inner face source, basin pollution load and migration and amount of precipitation, receive the influence that rainfall and river, the upper reaches come water, and it is big that the pollution of area source of this area exists the sewage generation, the characteristics that concentration of wastewater is low.To above situation, implemented the river channel ecology system of the treated side source low-pollution water among the present invention in this watershed construction.Rivers water water quality when its purpose is to improve sieve is cut down the pollution of area source load that gets into Erhai.
As depicted in figs. 1 and 2, the long-term peak level 3 of the stream entering lake 1 of Luo Shijiang is 2.7m, and river ordinary water level 2 is 1.0m; According to stage casing, river lift pump station location; Both sides along the river, river 3km section have been built the ecology that is about and have been cut dirty ditch 10 when sieve, and irrigation canals and ditches are of a size of 500mm * 800mm (wide * height); The ditch inner bottom part is laid cement hole brick 11; The hole brick is of a size of 300mm * 250mm * 50mm (length * wide * height), and the brick pore size is 50mm, and farmland and life in the countryside come water 12 to get into the ecological dirty ditch 10 that cuts through the import of irrigation canals and ditches; Irrigation canals and ditches two outlets are built two river mouth artificial swamps 13 respectively and are handled the water that comes that cuts in the dirty ditch, and the wetland area is 5 mu, all adopts the group technology of oxidation pond and surface-flow; Wherein the oxidation pond area is about 1 mu, and the degree of depth is 2m, and the water conservancy time of staying is about 8h; Surface low artificial swamp area is about 4 mu, and the degree of depth is 1.5m, and hydraulic detention time is about 24h; The water plant that artificial swamp is selected for use comprises reed, cyperus alternifolius, cattail, and wet land filler uses zeolite and flyash mixed fillers, and the river channel ecology shore protection 4 that is about 3km has been built in both sides in the 3km river course; What adopt is emergent aquactic plant 5-hygrophyte 6-shrub and 7 three grades of complex ecological shore protections of arbor, and the plant of selecting for use is respectively reed, willow, willow, and three grades highly are respectively 0.3m, 0.5m, 0.5m; Width is 1.5m; Supply the soil of plant root growth to use former bit table earthen backfill, plant cultivating density is as the criterion with effective mulching soil surface, at toe placement spur stone 8.Between ecological section dirty ditch 10 and the river channel ecology shore protection 4 is riverbank road 9.
The engineering construction probation is 8 month (April-November), and is on-the-spot to shown in the monitoring result table 1 that cuts dirty ditch influent quality, artificial wetland effluent water quality, system's enforcement front and back water quality of river variation.It is thus clear that; After the river channel ecology system engineering of treated side source low-pollution water was implemented, rivers water water quality improved during sieve, and is desirable from the face source wastewater treatment efficiency in farmland and rural area; And form pleasant river channel ecology shore protection view, effectively cut down the pollution of area source load that gets into Erhai.
Table 1
| Monitoring site | TN | NH 3-N | TP |
| Cut dirty ditch a (mg/L) | 3.72-6.72 | 0.6-2.4 | 0.13-0.34 |
| Cut dirty ditch b (mg/L) | 4.0-7.42 | 0.8-2.8 | 0.2-0.51 |
| Artificial wetland effluent a (mg/L) | 1.0-1.86 | 0.2-0.7 | 0.05-0.13 |
| Artificial wetland effluent b (mg/L) | 0.8-2.3 | 0.2-1.0 | 0.07-0.12 |
| River water quality (mg/L) in the 3km before implementing | 0.61-2.31 | 0.13-0.71 | 0.17-0.41 |
| Implement river water quality (mg/L) in the 3km of back | 0.38-1.3 | 0.07-0.36 | 0.07-0.23 |
In sum, the present invention builds both sides outside the river course bank the ecological dirty ditch that cuts, and makes that the face source high-concentration sewage from agricultural run-off and country sewage does not directly get into the river course, avoids mixing with river water a large amount of low-pollution waters of formation and influences water quality of river; Cut dirty ditch exit in ecology and build the river mouth artificial wet land system; Collect the sewage that cuts dirty ditch water conservancy diversion entering through ecological; This part sewage cuts in the dirty ditch transmission course in ecology on the one hand and obtains purification to a certain degree; Getting into the lake before through artificial wet land reinforced purified treatment on the other hand, pollutant burden can access significantly and cut down; Inboard three grades of ecological revetments forming with emergent aquactic plant-hygrophyte-shrub and arbor, the self-purification of water and the flood control capacity in the river training of building in the two sides, river course.The present invention pollutes control, improves river course self-purification capacity and control and pollute and effluent that this cuts down the pollution of area source load in final entering lake aspect three three-dimensionally strengthening the source.
Claims (10)
1. the river channel ecology system of a treated side source low-pollution water; Comprise ecological dirty ditch, ecological revetment and the river mouth artificial swamp of cutting; It is characterized in that: said ecology is cut dirty ditch and is positioned at the outer both sides of river course bank; Said river mouth artificial swamp is positioned at said ecology and cuts dirty ditch exit, and said ecological revetment is the stepped ecological shore protection, and said ecological revetment is positioned at two sides along the river, inboard, river course.
2. river channel ecology according to claim 1 system is characterized in that: said ecology is cut dirty ditch and is adopted brickwork construction, and said ecology is cut the size of dirty ditch according to being bigger than most water yield design, and said ecology is cut the bottom of dirty ditch and laid cement hole brick.
3. river channel ecology according to claim 2 system, it is characterized in that: the pore size of said cement hole brick is 30mm-60mm.
4. river channel ecology according to claim 1 system, it is characterized in that: said ecological revetment is three grades of ecological revetments, is followed successively by one-level emergent aquactic plant shore protection, secondary hygrophyte shore protection, three grades of shrubs and arbor shore protection outward from Ha Noi.
5. river channel ecology according to claim 4 system, it is characterized in that: the shore protection width at different levels of said ecological revetment are 1.0m-1.5m, and the shore protection height is decided according to river course peak level and par hydrologic regime.
6. river channel ecology according to claim 4 system is characterized in that: the intersection of said one-level emergent aquactic plant shore protection and bottom, river course is provided with spur stone.
7. river channel ecology according to claim 4 system; It is characterized in that: the height of said secondary hygrophyte shore protection makes the hygrophyte root system can not be lower than the river ordinary water level for a long time, lays coarse sand or the soil that is used for plant establishment on the said secondary hygrophyte shore protection.
8. river channel ecology according to claim 4 system is characterized in that: lay coarse sand or the soil that is used for plant establishment on said three grades of shrubs and the arbor shore protection.
9. river channel ecology according to claim 1 system is characterized in that: said artificial swamp adopts the group technology of oxidation pond and current wetland or oxidation pond and surface-flow.
10. river channel ecology according to claim 9 system; It is characterized in that: said artificial swamp comprises wetland plant and wet land filler; Said wetland plant is selected one or more the mixing in reed, canna, cattail or the cyperus alternifolius for use, and said wet land filler is selected one or more the mixing in flyash, zeolite, dried slag or the limestone for use.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922536A (en) * | 2014-04-04 | 2014-07-16 | 张爱均 | New method for comprehensive treatment of black and odorous river |
| CN105110474A (en) * | 2015-08-07 | 2015-12-02 | 上海交通大学 | Landscape type village sewage collecting and treating system |
| CN105110475A (en) * | 2015-08-19 | 2015-12-02 | 中国科学院南京地理与湖泊研究所 | Compound purification system for agricultural non-point source pollution in arid region |
| CN107083761A (en) * | 2017-06-07 | 2017-08-22 | 安吉国千环境科技有限公司 | A kind of processing system of rural area river course point source, face source water pollution |
| CN108298702A (en) * | 2018-04-17 | 2018-07-20 | 中国科学院南京地理与湖泊研究所 | A kind of tea place concentration development zone runoff treatment system |
| CN108467120A (en) * | 2018-04-17 | 2018-08-31 | 中国科学院南京地理与湖泊研究所 | A kind of tea place concentration development zone runoff treatment method |
| CN108545895A (en) * | 2018-06-22 | 2018-09-18 | 浙江达人环保科技股份有限公司 | A kind of river external source pollution treatment system |
| CN108999140A (en) * | 2017-06-06 | 2018-12-14 | 新大陆科技集团有限公司 | A kind of dirty system in the face in river section |
| 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 |
| CN109399800A (en) * | 2018-12-05 | 2019-03-01 | 中冶南方都市环保工程技术股份有限公司 | A kind of rivers and lakes runoff pollution step control system |
| CN113935199A (en) * | 2021-11-23 | 2022-01-14 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | Ecological chain type restoration system for rural water environment |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922536B (en) * | 2014-04-04 | 2015-05-06 | 张爱均 | New method for comprehensive treatment of black and odorous river |
| CN103922536A (en) * | 2014-04-04 | 2014-07-16 | 张爱均 | New method for comprehensive treatment of black and odorous river |
| CN105110474A (en) * | 2015-08-07 | 2015-12-02 | 上海交通大学 | Landscape type village sewage collecting and treating system |
| CN105110474B (en) * | 2015-08-07 | 2018-12-18 | 上海交通大学 | A kind of landscape type village sewage is collected and processing system |
| CN105110475A (en) * | 2015-08-19 | 2015-12-02 | 中国科学院南京地理与湖泊研究所 | Compound purification system for agricultural non-point source pollution in arid region |
| CN108999140A (en) * | 2017-06-06 | 2018-12-14 | 新大陆科技集团有限公司 | A kind of dirty system in the face in river section |
| CN107083761A (en) * | 2017-06-07 | 2017-08-22 | 安吉国千环境科技有限公司 | A kind of processing system of rural area river course point source, face source water pollution |
| CN107083761B (en) * | 2017-06-07 | 2022-05-24 | 安吉国千环境科技有限公司 | Rural river course point source, non-point source water pollution's processing system |
| CN108467120A (en) * | 2018-04-17 | 2018-08-31 | 中国科学院南京地理与湖泊研究所 | A kind of tea place concentration development zone runoff treatment method |
| CN108298702A (en) * | 2018-04-17 | 2018-07-20 | 中国科学院南京地理与湖泊研究所 | A kind of tea place concentration development zone runoff treatment system |
| CN108545895A (en) * | 2018-06-22 | 2018-09-18 | 浙江达人环保科技股份有限公司 | A kind of river external source pollution treatment system |
| 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 |
| CN109160611B (en) * | 2018-10-16 | 2024-01-30 | 水利部中国科学院水工程生态研究所 | Multistage ecological pond system suitable for mountain area small-river basin non-point source pollution collection treatment |
| CN109399800A (en) * | 2018-12-05 | 2019-03-01 | 中冶南方都市环保工程技术股份有限公司 | A kind of rivers and lakes runoff pollution step control system |
| CN109399800B (en) * | 2018-12-05 | 2024-01-02 | 中冶南方都市环保工程技术股份有限公司 | River and lake runoff pollution cascade control system |
| CN113935199A (en) * | 2021-11-23 | 2022-01-14 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | Ecological chain type restoration system for rural water environment |
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Application publication date: 20120711 |