A sewage treatment system and method for small rural breeding farms

Abstract

A rural small-scale breeding farm sewage treatment system and method belongs to the technical field of sewage treatment; it is mainly composed of a sewage treatment pool, a water diversion channel, an ecological ditch, a functional bridge, a solid-liquid separator and a variety of connecting pipes. A storage tank and a storage tank switch are installed on the functional bridge, and a mixing plate driven by an eccentric wheel to vibrate around a rotating shaft is installed below the storage tank switch. A water guide pipe is installed inside the functional bridge, and the water guide pipe is fixed to the nozzle. A discharge port, a feed pipe, a loop pipe and a drain pipe are fixed on the solid-liquid separator, and a connecting pipe I and a connecting pipe II are installed side by side on the loop pipe. The treatment method includes: the sewage is discharged into the sewage treatment pool after being treated by the solid-liquid separator; the sewage is treated in the sewage treatment pool by a composite microbial active conditioning agent; the treated sewage is discharged to the ecological ditch through the solid-liquid separator. The present invention has a simple structure, convenient maintenance, high sewage treatment efficiency, low treatment cost, and low equipment purchase and later maintenance costs.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and mainly relates to a sewage treatment system and method for a small rural breeding farm. Background Art

[0002] With the current demand for meat products among the people, animal husbandry, especially breeding, has achieved tremendous development. In addition to large-scale farms, there are more and more small-scale farms in rural areas. High-concentration organic wastewater is discharged into water bodies, causing the water quality to deteriorate continuously. Agricultural non-point source pollution continues to intensify. High concentrations of nitrogen and phosphorus lead to eutrophication of water bodies, which seriously threatens the health of rivers and lakes. In addition, livestock and poultry manure pollutants not only pollute surface water, causing the nitrate content in surface water to exceed the allowable range (50mg / L), but also its toxic and harmful components can easily enter the groundwater, seriously polluting the groundwater.

[0003] For rural farmers, the existing treatment equipment is complex and costly. The complexity of the process leads to high maintenance costs for equipment failure in the later stage. Therefore, many farmers still use traditional water flushing manure process, or use biogas digester fermentation and then complex process treatment. For example, a comprehensive treatment system for dairy farm wastewater disclosed in the utility model with application number 201721752549.1 includes water inlet equipment, mechanical screen, solid-liquid separation system, composting tank, biogas digester, regulating tank, gas collection device, UASB treatment system, microbial enhanced CASS treatment system, sedimentation tank, biological oxidation pond, disinfection device, and needs to go through multiple treatment steps. The operation is cumbersome, the equipment purchase cost is high, and the later maintenance cost is also high. Summary of the invention

[0004] The purpose of the present invention is to address the problems existing in the above-mentioned prior art and to propose a sewage treatment system and method for small rural farms, which has a simple structure, automated processing, saves manpower, reduces costs, and facilitates subsequent maintenance.

[0005] The purpose of the invention is achieved as follows: a rural small-scale farm sewage treatment system is mainly composed of a sewage treatment tank, a water diversion channel, an ecological ditch, a functional bridge, a solid-liquid separator and a variety of connecting pipes. A guide rail is fixed on the sewage treatment tank, and the functional bridge moves along the guide rail under the action of a guide wheel; a solid-liquid separator is installed on one side of the sewage treatment tank, and the drainage pipe of the solid-liquid separator is matched with the water diversion channel, and the water diversion channel is connected to the ecological ditch. The plant composition in the ecological ditch is 30 buds / m 2 Siberian iris, 15 plants / m 2 Pickerel grass, 35 bushes / m 2 Juncus effusus, 35 bushes / m 2Lythrum salicaria. A mixing plate is installed in the functional bridge, and the motor II drives the eccentric wheel to rotate. Under the action of the eccentric wheel, the mixing plate vibrates around the rotating shaft. A storage tank is fixedly installed above the mixing plate, and a feeding port is provided below the mixing plate; a composite microbial active conditioning agent is placed in the storage tank, and the composite microbial active conditioning agent is mainly composed of microbial flora (mainly capable of removing nitrogen, phosphorus, sulfur, COD), bulking matter, polymers with adsorption and flocculation effects, and mixed ore powder (mainly including montmorillonite, calcium stone powder, bentonite) and other material components; the water guide pipe is connected to the nozzle, and the nozzle, baffle, feeding port and storage tank are all fixedly installed on the shell, and a capstan is fixedly installed on one side of the shell, and a comprehensive cable is wound inside the capstan, and the comprehensive cable includes a water supply pipeline and a power supply pipeline, wherein the water supply pipeline is connected to the water guide pipe, and a motor I is installed outside the capstan, and a wheel is fixedly installed on the rotating shaft of the motor I, and a guide wheel is installed outside the wheel and outside the far end of the shell. A discharge port, a feed pipe and a loop pipe are fixedly installed on one side of the solid-liquid separator. The loop pipe is connected to the other side of the solid-liquid separator. The solid-liquid separator is also fixedly installed with a drain pipe. Connecting pipes I and II are installed side by side on the loop pipe. An electric control valve I is installed on the loop pipe between connecting pipes I and II, an electric control valve II is installed on connecting pipe I, and an electric control valve III is installed on connecting pipe II. There is a switch on the control console, and a single-chip microcomputer is installed in the control console. The integrated cable obtains water and power through the control console; the single-chip microcomputer is respectively connected to the electric control valve I, electric control valve II, electric control valve III, motor I, motor II, nozzle, storage tank switch, solid-liquid separator, and switch.

[0006] A rural small-scale breeding farm sewage treatment system, the treatment method thereof comprises the following steps:

[0007] S1: The sewage from the farm is fed into the solid-liquid separator through the feed pipe. After treatment, the solid is discharged to the designated location through the discharge port, and the residual liquid is discharged into the sewage treatment tank through the return pipe, the electric control valve II, the connecting pipe I or through the return pipe, the electric control valve III, and the connecting pipe II in sequence;

[0008] S2: The composite microbial active conditioning agent enters the mixing plate from the storage tank. Under the action of the eccentric wheel driven by the motor II, the mixing plate vibrates around the rotating shaft. As the guide wheel moves forward, the composite microbial active conditioning agent is evenly spread in the sewage treatment pool;

[0009] S3: The sewage treated with the composite microbial active conditioning agent enters the solid-liquid separator through the connecting pipe I or connecting pipe II via the circular pipe. After treatment, the solid is discharged through the discharge port, and the liquid enters the water diversion channel through the drainage pipe and finally flows into the ecological ditch.

[0010] The beneficial effects created by the present invention are: simple structure and convenient maintenance; the equipment is in continuous operation, and the equipment operation management, operation and maintenance are simple; the sewage treatment efficiency is high and the treatment cost is low; the equipment purchase and subsequent maintenance costs are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of a sewage treatment system for a small rural breeding farm;

[0012] Figure 2 It is a schematic diagram of the functional bridge structure;

[0013] Figure 3 It is a schematic diagram of the cross-section structure of a functional bridge;

[0014] Figure 4 It is a schematic diagram of the partial disassembly structure of the functional bridge;

[0015] Figure 5 It is a schematic diagram of the control console structure;

[0016] Figure 6 It is a schematic diagram of the dry-wet separator and the connecting pipeline structure;

[0017] Figure 7 This is a schematic diagram of the microcontroller hardware connection.

[0018] Description of the part numbers in the figure: 1. Sewage treatment tank; 2. Water diversion channel; 3. Ecological ditch; 4. Solid-liquid separator; 5. Functional bridge; 6. Guide rail; 7. Control panel; 401. Discharge port; 402. Feed pipe; 403. Electric control valve II; 404. Connecting pipe I; 405. Electric control valve I; 406. Electric control valve III; 407. Connecting pipe II; 408. Reciprocating pipe; 409. Drain pipe; 50 1. Guide wheel; 502. Motor I; 503. Storage tank; 504. Storage tank switch; 505. Housing; 506. Rotating shaft; 507. Mixing plate; 508. Water pipe; 509. Nozzle; 510. Motor II; 511. Eccentric wheel; 512. Feeding port; 513. Wheel; 514. Integrated cable; 515. Winch; 516. Baffle; 701. Single chip microcomputer; 702. Switch. DETAILED DESCRIPTION

[0019] The following is a detailed description of the implementation scheme of the invention in conjunction with the accompanying drawings. A rural small-scale farm sewage treatment system is mainly composed of a sewage treatment tank 1, a water diversion channel 2, an ecological ditch 3, a functional bridge 5, a solid-liquid separator 4 and a variety of connecting pipes. A guide rail 6 is fixedly installed on the sewage treatment tank 1, and the functional bridge 5 moves along the guide rail 6 under the action of the guide wheel 501; a solid-liquid separator 4 is installed on one side of the sewage treatment tank 1, and the drainage pipe 409 of the solid-liquid separator 4 is matched with the water diversion channel 2, and the water diversion channel 2 is connected to the ecological ditch 3. The plant composition in the ecological ditch 3 is 30 buds / m2 Siberian iris, 15 plants / m 2 Pickerel grass, 35 bushes / m 2 Juncus effusus, 35 bushes / m 2 Lythrum salicaria. A mixing plate 507 is installed in the functional bridge 5, and the motor II 510 drives the eccentric wheel 511 to rotate. Under the action of the eccentric wheel 511, the mixing plate 507 vibrates around the rotating shaft 506. A storage tank 503 is fixed above the mixing plate 507, and a feed outlet 512 is provided below the mixing plate 507; a composite microbial active conditioning agent is placed in the storage tank 503, and the composite microbial active conditioning agent mainly consists of microbial flora (mainly capable of removing nitrogen, phosphorus, sulfur, COD), bulking matter, polymers with adsorption and flocculation effects, and The invention is composed of mixed ore powder (mainly including montmorillonite, calcium stone powder, bentonite) and other material components; the water pipe 508 is connected to the nozzle 509, the nozzle 509, the baffle 516, the discharge port 512 and the storage tank 503 are all fixedly mounted on the shell 505, and a winch 515 is fixedly mounted on one side of the shell 505, and an integrated cable 514 is wound inside the winch 515, and the integrated cable 514 includes two parts of water supply and power supply, wherein the water supply pipeline is connected to the water pipe 508, and a motor 1502 is installed on the outside of the winch 515, and the motor 1502 is installed on the outside of the winch 515.

[0020] The rotating shaft of I502 is fixed with a wheel disc 513, and the guide wheel 501 is installed on the outside of the wheel disc 513 and the outside of the far end of the housing 505. A discharge port 401, a feed pipe 402 and a return pipe 408 are fixed on one side of the solid-liquid separator 4. The return pipe 408 is connected to the other side of the solid-liquid separator 4. The solid-liquid separator 4 is also fixed with a drain pipe 409. A connecting pipe I404 and a connecting pipe II407 are installed side by side on the return pipe 408. An electric control valve I405 is installed on the return pipe 408 between the connecting pipe I404 and the connecting pipe II407. An electric control valve II403 is installed on the connecting pipe I404, and an electric control valve III406 is installed on the connecting pipe II407. There is a switch 702 on the control panel 7, a single-chip computer 701 is installed in the control panel 7, and the integrated cable 514 obtains water and power through the control panel 7; the single-chip computer 701 is respectively connected to the electric control valve I405, the electric control valve II403, the electric control valve III406, the motor I502, the motor II510, the nozzle 509, the storage tank switch 504, the solid-liquid separator 4, and the switch 702.

[0021] A rural small-scale breeding farm sewage treatment system, the treatment method thereof comprises the following steps:

[0022] S1: The sewage from the farm is fed into the solid-liquid separator 4 through the feed pipe 402. After treatment, the solid is discharged to the designated location through the discharge port 401, and the residual liquid is discharged into the sewage treatment tank 1 through the return pipe 408, the electric control valve II403, and the connecting pipe I404 or through the return pipe 408, the electric control valve III406, and the connecting pipe II407 in sequence;

[0023] S2: The composite microbial active conditioning agent enters the mixing plate 507 from the storage tank 503. Under the action of the eccentric wheel 511 driven by the motor II 510, the mixing plate 507 vibrates around the rotating shaft 506. As the guide wheel 501 moves forward, the composite microbial active conditioning agent is evenly spread in the sewage treatment tank 1.

[0024] S3: The sewage treated with the composite microbial active conditioning agent enters the solid-liquid separator 4 through the connecting pipe I404 or the connecting pipe II407 via the loop pipe 408. After treatment, the solid is discharged through the discharge port 401, and the liquid enters the water diversion channel 2 through the drainage pipe 409, and finally flows into the ecological ditch 3.

[0025] When used for testing, the user puts a sufficient amount of composite microbial active conditioning agent into the storage tank 503 according to the standard of 10-20 grams per liter of sewage, and starts the fully automated treatment by turning on the switch 702 on the control panel 7. The single chip computer 701 controls the operation of the solid-liquid separator 4, so that the sewage from the farm is fed into the solid-liquid separator 4 through the feed pipe 402. After treatment, the solid is discharged to a designated location through the discharge port 401. The single chip computer 701 controls the electric control valve II403 to open, the electric control valve I405 to close, and the electric control valve III406 to close, and the residual liquid is discharged into the sewage treatment pool 1 through the return pipe 408, the electric control valve II403, and the connecting pipe I404 in sequence. The sewage treatment pool 1 includes two water pools, which can be used alternately in a set treatment cycle. If sewage has been treated in the water pool, the single chip computer 701 controls the electric control valve III406 to open, the electric control valve I405 to close, and the electric control valve II403 to close, and the residual liquid is discharged into another water pool of the sewage treatment pool 1 through the return pipe 408, the electric control valve III406, and the connecting pipe II407 in sequence. When a certain amount of sewage is injected, the single chip computer 701 controls the motor I502, the motor II510 and the storage tank switch 504 to work together, so that when the functional bridge 5 moves along the guide rail 6, the composite microbial active conditioning agent in the storage tank 503 can be poured onto the mixing plate 507 through the storage tank switch 504, and the motor II510 drives the eccentric wheel 511 to rotate, causing the mixing plate 507 to vibrate around the rotating shaft 506, so that the composite microbial active conditioning agent thereon can be evenly distributed and sprinkled in the sewage treatment tank 1 through the discharge port 512. At the same time, as the functional bridge 5 moves forward or backward, the integrated cable 514 is wound or pulled out in the winch 515. After the composite microbial active conditioning agent fully reacts in the sewage, the single chip computer 701 drives the solid-liquid separator 4 to work at the periodic point preset by the system, and opens or closes the corresponding electric control valve, and the sewage is drawn into the solid-liquid separator 4 through the connecting pipe I404 or the connecting pipe II407 via the return pipe 408. After treatment, the solid is discharged through the discharge port 401, and the liquid enters the water diversion channel 2 through the drainage pipe 409, and the sewage is discharged into the ecological ditch 3 for ecological treatment. The single chip computer 701 controls the motor I502 and the nozzle 509 to work together, so that when the functional bridge 5 moves along the guide rail 6, water from the water source passes through the integrated cable 514 and the water pipe 508 in sequence, and is finally sprayed out through multiple side-by-side nozzles 509, flushing the entire sewage treatment pool 1 multiple times. After the flushing is completed, the single chip computer 701 opens or closes the corresponding electric control valve, and the sewage is drawn into the solid-liquid separator 4 through the connecting pipe I404 or the connecting pipe II407 through the return pipe 408. After treatment, the solid is discharged through the discharge port 401, and the liquid enters the water diversion channel 2 through the drainage pipe 409, and the sewage is discharged into the ecological ditch 3 for ecological treatment.

Claims

1. A rural small-scale farm sewage treatment system, characterized by: A guide rail (6) is fixedly installed on the sewage treatment pool (1), and the functional bridge (5) moves along the guide rail (6) under the action of a guide wheel (501); a solid-liquid separator (4) is installed on one side of the sewage treatment pool (1), and the drainage pipe (409) of the solid-liquid separator (4) is matched with the water diversion channel (2), and the water diversion channel (2) is connected to the ecological ditch (3), and the plant composition in the ecological ditch (3) is 30 buds / m 2 Siberian iris, 15 plants / m 2 Pickerel grass, 35 bushes / m 2 Juncus effusus, 35 bushes / m 2 Lythrum salicaria; A mixing plate (507) is installed in the functional bridge (5), and a motor II (510) drives an eccentric wheel (511) to rotate. Under the action of the eccentric wheel (511), the mixing plate (507) vibrates around the rotating shaft (506). A storage tank (503) is fixed above the mixing plate (507), and a discharge port (512) is provided below the mixing plate (507); a composite microbial active conditioning agent is placed in the storage tank (503), and the composite microbial active conditioning agent mainly consists of microbial flora, bulking material, a polymer with adsorption and flocculation effects, and mixed ore powder; a water guide pipe (508) is connected to a nozzle (509), and a spray nozzle (509) is provided to spray the water. The nozzle (509), the baffle (516), the discharge port (512) and the storage tank (503) are all fixedly mounted on the housing (505), and a winch (515) is fixedly mounted on one side of the housing (505), and a comprehensive cable (514) is wound inside the winch (515), and the comprehensive cable (514) includes two parts, namely, a water supply pipeline and a power supply pipeline, wherein the water supply pipeline is connected to the water guide pipe (508), and a motor I (502) is installed on the outside of the winch (515), and a wheel (513) is fixedly mounted on the rotating shaft of the motor I (502), and the guide wheel (501) is installed on the outside of the wheel disc (513) and the outside of the far end of the housing (505); A discharge port (401), a feed pipe (402) and a return pipe (408) are fixedly installed on one side of the solid-liquid separator (4); the return pipe (408) is connected to the other side of the solid-liquid separator (4); the solid-liquid separator (4) is also fixedly installed with a drain pipe (409); a connecting pipe I (404) and a connecting pipe II (407) are installed side by side on the return pipe (408); an electric control valve I (405) is installed on the return pipe (408) between the connecting pipe I (404) and the connecting pipe II (407); an electric control valve II (403) is installed on the connecting pipe I (404); and an electric control valve III (406) is installed on the connecting pipe II (407); A switch (702) is provided on the control panel (7), a single chip microcomputer (701) is installed in the control panel (7), and an integrated cable (514) obtains water and power through the control panel (7); the single chip microcomputer (701) is respectively connected to an electric control valve I (405), an electric control valve II (403), an electric control valve III (406), a motor I (502), a motor II (510), a nozzle (509), a storage tank switch (504), a solid-liquid separator (4), and a switch (702).

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