Farmland recession treatment system with regulation and storage functions

Abstract

The utility model discloses a farmland recession treatment system with regulation and storage functions, which comprises a sequencing batch reactor (SBR) functional area and a constructed wetland, a first water inlet pump is arranged between the SBR functional area and the constructed wetland, a second water inlet pump is arranged between the constructed wetland and a river channel, and a drainage pipe is arranged between the constructed wetland and the river channel. When the rain period comes or during irrigation operation, the first water inlet pump is started in advance, and the pump is stopped after the stock river water in the SBR functional area is emptied. Farmland recession water is accumulated after entering the SBR functional area, the first water inlet pump pumps the water into the constructed wetland for purification treatment, and the treated water is discharged into the river channel through the drainage pipe after reaching the standard. In a non-water-recession period, the second water inlet pump is started to ensure that the constructed wetland is always in a working state. According to the design, a conventional treatment means is changed, the SBR functional area technology, the constructed wetland technology and the intelligent control system are integrated according to the characteristics of unstable farmland recession water quantity and large water quality fluctuation, farmland recession can be efficiently and intelligently treated, and agricultural pollution entering a river can be effectively controlled.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection, in particular to a water treatment system. Background Art

[0002] Farmland runoff is generated with precipitation and irrigation activities, and is characterized by concentrated, irregular discharge times and large instantaneous flow rates. The main pollutants are nitrogen and phosphorus, the organic matter content is relatively low, and water quality indicators fluctuate greatly.

[0003] The current management of farmland drainage generally uses idle land to build ecological wetlands and artificial wetlands. There are also irrigation ditch reconstructions and ditch systems, which use microbial degradation, plant absorption and sediment adsorption. The above two conventional methods are used for purification and treatment, and after the treatment meets the standards, it is discharged into the river.

[0004] When ecological wetlands and artificial wetlands are used for treatment, they are generally designed according to the pollution load. Artificial wetlands and ecological wetlands require larger sites as treatment stations. However, in normal practical operations, the available open space around cultivated land is relatively small.

[0005] Using the canal system for purification faces practical challenges. First, during the non-water withdrawal period, the canals are basically dry, and microorganisms and purification plants are not easy to survive, so they need to be replanted and inoculated continuously; second, the sewage treatment time is determined by the flow of the water withdrawal. When the water volume is large, the hydraulic retention time is short, and the farmland water does not meet the discharge standards and enters the river; third, in recent years, high-standard farmland has been vigorously built, and irrigation ditches have been treated with anti-seepage, which does not meet the conditions for direct planting of plants. Utility Model Content

[0006] The technical problem solved by the utility model is as follows: for the management of farmland drainage, artificial wetlands and ecological wet ponds require larger sites as treatment sites, but the available open space area around the cultivated land is relatively small; and purification using a ditch system faces practical challenges.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a farmland drainage treatment system with regulation and storage function, including an SBR functional area and an artificial wetland, the SBR functional area is connected to the drainage channel, the artificial wetland is located beside the river channel, a first water inlet pump is provided between the SBR functional area and the artificial wetland, a second water inlet pump is provided between the artificial wetland and the river channel, a drainage pipe is provided between the artificial wetland and the river channel, the first water inlet pump can pump water from the SBR functional area into the artificial wetland, the second water inlet pump can pump water in the river channel into the artificial wetland, and the drainage pipe can discharge water in the artificial wetland into the river channel.

[0008] When the rainy season comes or during irrigation operations, the first water inlet pump is turned on in advance, and the stored river water in the SBR functional area is emptied before the pump is stopped. The farmland water enters the SBR functional area and accumulates. When the water level reaches the warning water level, the first water inlet pump starts to work, pumping water into the artificial wetland for purification treatment. The flow of the first water inlet pump is controlled by the water quality treatment of the drainage pipe, and it is discharged into the river through the drainage pipe after the treatment meets the standards.

[0009] When the water is not receding, the second water inlet pump is turned on to ensure that the artificial wetland is always in working condition, preventing the artificial wetland from drying up and becoming scrapped, and also purifying the water quality of the river.

[0010] The SBR functional area is set on the side of the river bank facing the river, and the SBR functional area is in a long strip shape. In this way, the construction of the SBR functional area is set at the outlet of the drainage channel without destroying the original drainage channel, and the long strip SBR functional area can be connected to the outlets of multiple drainage channels.

[0011] An intelligent control cabinet is installed beside the SBR functional area or artificial wetland, and the intelligent control cabinet is electrically connected to the first water inlet pump and the second water inlet pump. The intelligent control cabinet controls the first water inlet pump to start in advance, and stops the pump after the stock river water in the SBR functional area is emptied. The farmland water enters the SBR functional area and accumulates. When the intelligent control cabinet detects that the water level in the SBR functional area reaches the warning water level, the first water inlet pump starts to work, and the pumped water enters the artificial wetland for purification. The intelligent control cabinet controls the flow of the first water inlet pump according to the water quality treatment of the drainage pipe, and the water is discharged into the river through the drainage pipe after the treatment meets the standard. During the non-water withdrawal period, the intelligent control cabinet controls the second water inlet pump to start, ensuring that the wetland is always in working condition to prevent the wetland from drying up and being scrapped.

[0012] The SBR functional area is equipped with a water level monitoring module, and the drainage pipe is equipped with a water quality monitoring module. The water level monitoring module and the water quality monitoring module are electrically connected to the intelligent control cabinet. The intelligent control cabinet collects the water level information in the SBR functional area and the water quality information in the drainage pipe through the water level monitoring module and the water quality monitoring module, and can control the start and stop of the first water inlet pump and the second water inlet pump.

[0013] The utility model changes the conventional treatment methods and integrates SBR functional area technology, artificial wetland technology and intelligent control system according to the characteristics of unstable water volume and large fluctuations in water quality of farmland drainage. It can efficiently and intelligently treat farmland drainage and effectively control agricultural pollution entering the river. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the farmland drainage treatment system with storage and regulation functions.

[0016] Explanation of symbols in the figure:

[0017] 10. SBR functional area;

[0018] 20. Artificial wetlands;

[0019] 30. Drainage channel;

[0020] 40. River channel;

[0021] 51. First water inlet pump; 52. Second water inlet pump; 53. Drain pipe;

[0022] 60. Intelligent control cabinet. DETAILED DESCRIPTION

[0023] like Figure 1 A farmland drainage treatment system with regulation and storage function includes an SBR functional area 10 and an artificial wetland 20. The SBR functional area is connected to a drainage channel 30. The artificial wetland is located beside a river channel 40. A first water inlet pump 51 is provided between the SBR functional area and the artificial wetland, a second water inlet pump 52 is provided between the artificial wetland and the river channel, and a drainage pipe 53 is provided between the artificial wetland and the river channel. The first water inlet pump can pump water from the SBR functional area into the artificial wetland, the second water inlet pump can pump water in the river channel into the artificial wetland, and the drainage pipe can discharge water in the artificial wetland into the river channel.

[0024] SBR is the abbreviation of sequential intermittent activated sludge process, which is an activated sludge sewage treatment technology that operates in an intermittent aeration mode, also known as sequencing batch activated sludge process. Different from traditional sewage treatment processes, SBR technology uses a time-division operation mode instead of a space-division operation mode, a non-stable biochemical reaction instead of a steady-state biochemical reaction, and static ideal sedimentation instead of traditional dynamic sedimentation. Its main feature is the orderly and intermittent operation in operation. The core of SBR technology is the SBR reaction tank, which integrates the functions of homogenization, primary sedimentation, biodegradation, and secondary sedimentation in one tank, without a sludge return system. The SBR functional area of ​​the utility model is an area that uses SBR technology. The SBR functional area plays the role of storing sewage and primary sewage treatment.

[0025] The SBR functional area 10 is arranged on the side of the river bank facing the river 40, and the SBR functional area is in a long strip shape. In this way, the construction of the SBR functional area 10 is arranged at the outlet of the water retreat channel without destroying the original water retreat channel 30, and the long strip SBR functional area 10 can be connected to the outlets of multiple water retreat channels 30.

[0026] An intelligent control cabinet 60 is provided beside the SBR functional area 10 or the artificial wetland 20, and the intelligent control cabinet is electrically connected to the first water inlet pump 51 and the second water inlet pump 52. The SBR functional area 10 is provided with a water level monitoring module, and the drainage pipe 53 is equipped with a water quality monitoring module, and both the water level monitoring module and the water quality monitoring module are electrically connected to the intelligent control cabinet 60.

[0027] The intelligent control cabinet 60 controls the first water inlet pump 51 to start in advance, and stops the pump after the stock of river water in the SBR functional area 10 is emptied. The water from the farmland enters the SBR functional area 10 and accumulates. When the intelligent control cabinet 60 detects that the water level in the SBR functional area 10 reaches the warning water level, the first water inlet pump 51 starts to work, pumps water into the artificial wetland 20 and starts purification treatment. The intelligent control cabinet 60 controls the flow of the first water inlet pump 51 according to the water quality treatment of the drainage pipe 53, and discharges it into the river through the drainage pipe 53 after the treatment meets the standard. During the non-water withdrawal period, the intelligent control cabinet 60 controls the second water inlet pump 52 to start, ensuring that the wetland is always in working condition to prevent the wetland from drying up and being scrapped.

[0028] The SBR functional area 10 is provided with a water level monitoring module, and the drainage pipe 53 is equipped with a water quality monitoring module, and both the water level monitoring module and the water quality monitoring module are electrically connected to the intelligent control cabinet 60. The intelligent control cabinet collects water level information in the SBR functional area 10 and water quality information in the drainage pipe through the water level monitoring module and the water quality monitoring module, and can control the start and stop of the first water inlet pump 51 and the second water inlet pump 52.

[0029] The above contents are only preferred implementation modes of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation mode and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A farmland drainage treatment system with a storage function, comprising an SBR functional area (10) and an artificial wetland (20), wherein the SBR functional area is connected to a drainage channel (30), and the artificial wetland is located beside a river channel (40), characterized in that: A first water inlet pump (51) is provided between the SBR functional area and the artificial wetland, a second water inlet pump (52) is provided between the artificial wetland and the river channel, and a drainage pipe (53) is provided between the artificial wetland and the river channel. The first water inlet pump can pump water from the SBR functional area into the artificial wetland, the second water inlet pump can pump water in the river channel into the artificial wetland, and the drainage pipe can discharge water in the artificial wetland into the river channel.

2. The farmland drainage treatment system with regulation and storage function as claimed in claim 1, characterized in that: The SBR functional area (10) is arranged on the side of the river bank facing the river (40), and the SBR functional area is in a long strip shape.

3. The farmland drainage treatment system with regulation and storage function as claimed in claim 2, characterized in that: The SBR functional area (10) is connected to a plurality of drainage channels (30).

4. The farmland drainage treatment system with regulation and storage function as claimed in claim 1, characterized in that: An intelligent control cabinet (60) is provided beside the SBR functional area (10) or the artificial wetland (20), and the intelligent control cabinet is electrically connected to the first water inlet pump (51) and the second water inlet pump (52).

5. The farmland drainage treatment system with regulation and storage function as claimed in claim 4, characterized in that: The SBR functional area (10) is provided with a water level monitoring module, and the drainage pipe (53) is equipped with a water quality monitoring module. Both the water level monitoring module and the water quality monitoring module are electrically connected to the intelligent control cabinet (60).

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