CN210945274U - Water and soil conservation ecological restoration complex for purifying tail drainage of paddy field area - Google Patents
Water and soil conservation ecological restoration complex for purifying tail drainage of paddy field area Download PDFInfo
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- CN210945274U CN210945274U CN201922053379.3U CN201922053379U CN210945274U CN 210945274 U CN210945274 U CN 210945274U CN 201922053379 U CN201922053379 U CN 201922053379U CN 210945274 U CN210945274 U CN 210945274U
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Abstract
The utility model provides a purify soil and water conservation ecological remediation complex of paddy field district tail drainage, it relates to drainage clean system, the utility model discloses a serious problem is lost in order to solve the paddy field planting soil and water flow, it includes a plurality of sedimentation purification tanks, sewage collection canal and irritates the canal, collects the sedimentation purification tank through the sewage collection canal from the drainage in paddy field, deposits the purification back, in the canal discharges to the river. The utility model discloses a drainage field is in water discharging to the river through the purification, regularly clears up the recovery to sedimentary silt and returns the farmland, implements sustainable cyclic utilization, is favorable to protecting farmland, agricultural resource and environment, is favorable to ecological protection and soil and water conservation. The utility model discloses be applied to the agricultural field.
Description
Technical Field
The utility model relates to a water and soil conservation ecological remediation complex of purification paddy field district tail drainage.
Background
The water and soil conservation is a public welfare for maintaining national soil safety, protecting water and soil resources, benefiting the nation and benefiting the people to benefit descendants, is a green development requirement for sustainable utilization of natural resources, and is a basic national policy of the country. "Water" and "soil" are the life lines of agriculture. Basic farmland construction, particularly paddy field reclamation must accord with water and soil resource natural distribution and reserve volume conditions, must plan to implement under overall planning and layout framework such as land utilization planning and water function regionalization, simultaneously land and water resource utilization and treatment engineering should be with relevant ecological management engineering overall planning design arrangement, guarantee ecological safety, keep basic functions such as production and ecology of land, protect watershed waters ecosystem, aquatic organism habitat and biodiversity, in agriculture modernization construction and beautiful country construction height, from the long argumentation, scientific and reasonable utilizes water and soil resource. Because the quality of rice in the cold-warm area of north is better, the market demand is larger, the adjustment speed of the production structure of the dry farmland improved paddy field in north in recent years is accelerated, the paddy field improvement project and the irrigation project are more, the production area of rice is rapidly increased, the demand on water resources is increased, the farmland and the water conservancy are faced with the problems of re-planning and resource matching, the unprecedented pressure on the water resources and the water environment is brought by the large-scale development of the paddy field, and meanwhile, new troubles are brought to the maintenance of the land. According to the production process of paddy field planting, water supply is generally conveyed by a water conservancy irrigation canal or a pump station from rivers and lakes in the paddy field at the stages of field soaking, rice transplanting, pre-heading and the like, and crops are periodically discharged from the paddy field to the irrigation canal or the rivers and lakes after a period of time of crop utilization. The water and soil loss phenomenon generally occurs in a newly-built paddy field area, the discharged water is basically black brown, the turbidity is high, a large number of suspended matters are generated, the discharging time is concentrated, the impact on a river channel is large, and meanwhile, partial residual substances such as pesticides and chemical fertilizers are brought out, so that the water quality is polluted, and the ecological health of rivers is threatened. In addition, the expansion of the paddy field producing area leads to insufficient water resource scheduling and serious water shortage of the paddy field, thereby influencing the rice transplanting and sowing. Some dry-to-paddy field projects lack scientificity and regional planning and supporting projects, and cannot meet the requirements of modern green agricultural projects. Therefore, the drainage field for maintaining water and soil in the paddy field and the functional zoning method thereof are established, so that water and soil loss is avoided, water pollution and sediment siltation of riverbed bottom are prevented, the ecological environment of soil and rivers is protected, key habitat such as fish spawning sites and the like is protected, advanced and practical technological engineering facilities are provided for production and construction of green paddy fields, multifunctional public welfare artificial wetlands such as water and soil maintenance and ecological protection in the paddy field are formed, and the drainage field is an ecological engineering urgently needed in the planning and implementation of paddy fields in the north at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems of serious loss of water and soil and the ecological environment of a region in paddy field planting. And provides a water and soil conservation ecological restoration complex for purifying the tail drainage of the paddy field area.
The utility model relates to a water and soil conservation ecological restoration complex for purifying the tail drainage of a paddy field area, which comprises a plurality of sedimentation purification tanks, a sewage collection channel and a irrigation channel;
the plurality of sedimentation purification tanks are arranged between the paddy field and the irrigation channel and are arranged along the flowing direction of the irrigation channel;
the water outlet of the paddy field is communicated with the water inlet of the sedimentation and purification tank through a sewage collecting channel; the adjacent sedimentation purification tanks are communicated through a water diversion channel I; the water outlet of each water diversion channel is communicated with the water inlet of the irrigation channel through a water diversion channel II; valve gates are arranged on the first water diversion channel and the second water diversion channel;
the outlet of the irrigation canal is communicated with a river channel or a lake;
the sedimentation purification tank consists of a filter screen, a step platform and a blocking block;
the filter screen is arranged at the water inlet of the sedimentation and purification tank, and the step platform is divided into an upper platform and a lower platform; the side surface and the bottom surface of the step platform are respectively attached to the inner side wall and the bottom of the sedimentation and purification tank; the plurality of blocking blocks are arranged on the upper surface of the lower table; the upper table is positioned below the filter screen.
The utility model discloses contain following beneficial effect:
the utility model discloses between original paddy field and irrigation canal, set up the sedimentation purification tank, this pond is similar to artificial lake (or constructed wetland) for the water that contains a large amount of earth or other muddy turbidity of sediment paddy field exhaust. The drainage water of the paddy field is led to the sedimentation and purification tank through the sewage collection channel, and the conventional mode that the drainage water of the paddy field is directly discharged to the irrigation channel and then flows into the river channel is replaced. The utility model discloses be provided with the stepped stage body in settling purification pond to set up cobblestone or gravel layer on the stage body, this setting can filter the pasture and water class debris that contain in the drainage, makes the drainage that flows into settling purification pond bottom contain a small amount of pasture and water as far as possible. In order to further filter aquatic plants class debris, set up the screen cloth in sedimentation purification pond water inlet department, collect aquatic plants to sieve through double-deck screen cloth, if a large amount of aquatic plants class debris on the screen cloth, can artifically get rid of, prevent to block up the screen cloth. After weeds and other impurities are removed, the sludge deposited at the bottom of the sedimentation and purification tank can be smoothly sucked out of the field through the sludge pump, so that the pumps are prevented from being blocked by the weeds. The microbial filler is placed in the sedimentation purification tank to acclimate the sludge, so that the nutrients of the sludge are improved, and more nutrients can be provided during returning to the field. In order to prevent the water flow from impacting or stirring the sludge at the bottom of the sedimentation and purification tank, a blocking block is arranged on the lower platform of the step platform to slow down the impact of the water flow. The presence of a layer of cobblestones or gravel may facilitate the attachment of microorganisms.
The utility model discloses a deposit and purify the ramp of pond and plant on and have able to bear or endure to flood herbaceous plant, such as cynodon dactylon etc.. Shrubs and the like can be planted around the sedimentation purification tank, and the function of stabilizing water and soil can be achieved.
The utility model discloses establish ties a plurality of sedimentation purification ponds together, if paddy field exhaust sewage turbidity is higher, when mud volume is big, can deposit the purification jointly through a plurality of sedimentation purification ponds. And the valve gate controls the opening and closing of the sedimentation purification tanks and the irrigation channel. The purified water is discharged into rivers or lakes, deposited silt is regularly cleaned, recovered and returned to the field, and sustainable recycling is implemented, thereby being beneficial to protecting farmlands, agricultural resources and environment, and being beneficial to ecological protection and water and soil conservation.
Drawings
FIG. 1 is a schematic diagram of the layout of drainage area field of the present invention;
FIG. 2 is a sectional view of the sedimentation purification tank;
fig. 3 is a cross-sectional view of the filter screen of the present invention.
Detailed Description
The first embodiment is as follows: the water and soil conservation ecological restoration complex for purifying the tail drainage of the paddy field area comprises a plurality of sedimentation purification tanks 1, a sewage collecting channel 2 and an irrigation channel 3;
the plurality of sedimentation purification tanks 1 are arranged between the paddy field 4 and the irrigation canal 3 and arranged along the flowing direction of the irrigation canal 3;
the water outlet of the paddy field 4 is communicated with the water inlet of the sedimentation and purification tank 1 through a sewage collecting channel 2; the adjacent sedimentation purification tanks 1 are communicated through a water diversion channel I5; the water outlet of each water diversion channel is communicated with the water inlet of the irrigation channel 3 through a water diversion channel II 6; the water diversion channel I5 and the water diversion channel II 6 are both provided with a valve gate 7;
the outlet of the irrigation canal 3 is communicated with a river channel or a lake 11;
the sedimentation purification tank 1 consists of a filter screen 8, a step platform 9 and a blocking block 10;
the filter screen 8 is arranged at the water inlet of the sedimentation and purification tank 1, and the step platform 9 is divided into an upper platform 9-1 and a lower platform 9-2; the side surface and the bottom surface of the step platform 9 are respectively attached to the inner side wall and the bottom of the sedimentation and purification tank 1; a plurality of stop blocks 10 are arranged on the upper surface of the lower platform 9-2; the upper table 9-1 is positioned below the filter screen 8.
The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the upper surface of the upper platform 9-1 and the bottom of the sedimentation and purification tank 1 are both provided with a cobble layer or a gravel layer. The rest is the same as the first embodiment.
The third concrete implementation mode: the first difference between the present embodiment and the specific embodiment is: the barrier block 10 is a triangle, and the inclined plane of the barrier block faces the water inlet of the sedimentation purification tank 1. The rest is the same as the first embodiment.
The fourth concrete implementation mode: the first difference between the present embodiment and the specific embodiment is: the area of the step platforms 9 accounts for 5/1-4/1 of the area of the sedimentation purification tank 1. The rest is the same as the first embodiment.
The fifth concrete implementation mode: the first difference between the present embodiment and the specific embodiment is: the sedimentation purification tank 1 is internally provided with microbial fillers. The rest is the same as the first embodiment.
The sixth specific implementation mode: the first difference between the present embodiment and the specific embodiment is: the filter screen 8 consists of a filter screen I8-1 and a filter screen II 8-2; the first filter screen 8-1 is positioned above the second filter screen 8-2, and the meshes of the first filter screen 8-1 and the meshes of the second filter screen 8-2 are arranged in a staggered manner. The rest is the same as the first embodiment.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.
Claims (6)
1. A water and soil conservation ecological restoration complex for purifying tail drainage of a paddy field area is characterized by comprising a plurality of sedimentation purification tanks (1), a sewage collection channel (2) and an irrigation channel (3);
the plurality of sedimentation purification tanks (1) are arranged between the paddy field (4) and the irrigation channel (3) and are arranged along the flowing direction of the irrigation channel (3);
the water outlet of the paddy field (4) is communicated with the water inlet of the sedimentation and purification tank (1) through a sewage collecting channel (2); the adjacent sedimentation purification tanks (1) are communicated through a water diversion channel I (5); the water outlet of each water diversion channel is communicated with the water inlet of the irrigation channel (3) through a water diversion channel II (6); the water diversion channel I (5) and the water diversion channel II (6) are both provided with a valve gate (7);
the outlet of the irrigation canal (3) is communicated with a river channel (11);
the sedimentation purification tank (1) consists of a filter screen (8), a step platform (9) and a blocking block (10);
the filter screen (8) is arranged at the water inlet of the sedimentation and purification tank (1), and the step platform (9) is divided into an upper platform (9-1) and a lower platform (9-2); the side surface and the bottom surface of the step platform (9) are respectively attached to the inner side wall and the bottom of the sedimentation and purification tank (1); a plurality of stop blocks (10) are arranged on the upper surface of the lower platform (9-2); the upper platform (9-1) is positioned below the filter screen (8).
2. The soil and water conservation ecological restoration complex for purifying the tail drainage of paddy fields according to claim 1, characterized in that the upper surface of the upper platform (9-1) and the bottom of the sedimentation purification tank (1) are provided with cobble layers or gravel layers.
3. The soil and water conservation and ecological restoration complex for purifying the tail drain water of a paddy field area as claimed in claim 1, wherein the barrier block (10) is a triangular body with an inclined surface facing the water inlet of the sedimentation purification tank (1).
4. The water and soil conservation ecological restoration complex for purifying the tail drainage water of a paddy field area as claimed in claim 1, characterized in that the area of the step platform (9) occupies 5/1-4/1 of the area of the sedimentation purification tank (1).
5. The water and soil conservation and ecological restoration complex for purifying the tail drainage water of a paddy field area as claimed in claim 1, characterized in that a microorganism filler is arranged in the sedimentation purification tank (1).
6. The water and soil conservation and ecological restoration complex for purifying the tail drainage water of the paddy field area as claimed in claim 1, wherein the filter screen (8) is composed of a first filter screen (8-1) and a second filter screen (8-2); the first filter screen (8-1) is positioned above the second filter screen (8-2), and the meshes of the first filter screen (8-1) and the meshes of the second filter screen (8-2) are arranged in a staggered manner.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113200609A (en) * | 2021-05-17 | 2021-08-03 | 生态环境部华南环境科学研究所 | Sunken type zigzag sedimentation channel-composite ecological filtering dam system and culture tail water treatment method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113200609A (en) * | 2021-05-17 | 2021-08-03 | 生态环境部华南环境科学研究所 | Sunken type zigzag sedimentation channel-composite ecological filtering dam system and culture tail water treatment method |
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