Movable modular rural sewage purification device

Abstract

The invention provides a movable modular rural sewage purification device, and belongs to the technical field of water treatment. Comprising a base plate, a settling and filtering module is arranged on the base plate, the settling and filtering module comprises a settling tank with an opening in the upper portion, a gate and a coarse filter screen, the gate and the coarse filter screen are arranged on the side face of the upper portion of the settling tank, and the gate is connected with an electric flocculation module through a water outlet pipeline. A plurality of layers of non-woven fabrics are arranged at the upper part in the coagulation and clarification area, the top of the coagulation and clarification area is communicated with the inclined plate fin settling area, a plurality of inclined plates with a plurality of layers of fins are arranged in the inclined plate fin settling area in parallel, a semi-permeable membrane filter screen is arranged above the inclined plates, a water outlet is formed above the semi-permeable membrane filter screen, and the semi-permeable membrane filter screen is connected with an adsorption and filtration module through a water outlet pipe; a water valve is arranged at the lower part of the adsorption filtering module. According to the device, water can naturally flow into and out of each purification module without a water pump. The device can be dragged by agricultural machinery and automobiles.

Description

Technical Field

[0001] The invention provides a mobile modular rural sewage purification device, which belongs to the technical field of water treatment and can be used for purifying rural aquaculture sewage and domestic sewage. Background Art

[0002] Rural sewage refers to wastewater generated by agricultural production and rural residents' daily lives. Its sources are dispersed, its volume fluctuates seasonally, and its quality is complex, often containing high concentrations of organic matter, nitrogen and phosphorus pesticide residues, and harmful microorganisms. Due to topographical, climatic, and economic constraints, large-scale sewage treatment systems and equipment are generally unsuitable for rural areas. Low-cost, easy-to-maintain decentralized sewage treatment equipment is required.

[0003] With the increasing emphasis on rural health and hygiene worldwide, a variety of simple, portable rural sewage treatment equipment has emerged. However, existing equipment generally uses biofilm treatment, which has issues such as poor climate adaptability and easy clogging and corrosion of fillers. This makes it unsuitable for areas with complex climates and a lack of biofilm material supply. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a simple and easy-to-use mobile modular rural sewage purification device for simple on-site treatment of rural sewage, while having high reliability and easy maintenance.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A mobile modular rural sewage purification device includes a chassis with a sedimentation and filtration module on the chassis. The sedimentation and filtration module includes a sedimentation tank with an upper opening and a gate and a coarse filter screen on the upper side thereof. The gate is connected to an electric flocculation module through an outlet pipe. The electric flocculation module includes an electrolytic cell, a coagulation and clarification zone and an inclined plate fin sedimentation zone. The side of the electrolytic cell is connected to the coagulation and clarification zone. A multi-layer non-woven fabric is provided above the interior of the coagulation and clarification zone. The top of the coagulation and clarification zone is connected to the inclined plate fin sedimentation zone. A plurality of inclined plates with multi-layer fins are arranged in parallel inside the inclined plate fin sedimentation zone. A semipermeable membrane filter screen is provided above the inclined plate. A water outlet is provided above the semipermeable membrane filter screen and is connected to an adsorption and filtration module through an outlet pipe. A water valve is provided at the bottom of the adsorption and filtration module.

[0007] Before the device is put into operation, adjust the support frame so that the chassis is parallel to the horizontal plane to ensure normal operation of the device.

[0008] The sedimentation filtration module is a tank with an open top. The sewage to be treated is added from the top of the tank. Its outlet is located at the upper part of the tank, has a coarse filter screen, and is connected to an outlet pipe with a throttle valve pointing downward.

[0009] The pH regulator is an electronic pH meter and has an acid-base buffer addition port, and is placed on the side of the electrolytic cell.

[0010] There are openable exhaust ports around the cathode of the electrolytic cell to discharge the hydrogen generated by the electrolysis reaction and discharge it after catalytic hydrogen removal.

[0011] The inclined plate wing sedimentation area is an open inclined column, which forms a communicating vessel with the coagulation and clarification area, and the liquid levels in the two areas are at the same height.

[0012] According to the principle of communicating vessels, the height of the outlet of the inclined plate vane sedimentation zone and the semi-permeable membrane filter should be slightly lower than the height of the outlet of the coagulation and clarification zone.

[0013] Generally, the angle between the inclined plate fin settling area and the horizontal plane is about 60 degrees, and the multiple inclined plates with fins inside are parallel to each other and parallel to the inclined plate fin settling area as a whole.

[0014] Generally, the included angle between the inclined plate and the wing is 60° to 90°.

[0015] Inclined plate vanes The inclined plates inside the settling area are removable for easy cleaning.

[0016] The adsorption filtration module is a vertical tubular module. Its internal filler can be made of commonly used electrospinning materials such as PVP, and is equipped with nano-iron oxide, activated carbon, etc. to adsorb small molecular pollutants in water.

[0017] The present invention provides a simple, portable, modular rural sewage purification device for simple, on-site treatment of rural sewage, while offering high reliability and ease of maintenance. This device allows water to flow naturally into and out of each purification module without the need for a pump. Consumable components, such as electrodes and adsorption and filtration modules, are modularly designed for easy replacement. The device can be towed by agricultural machinery or vehicles, making it convenient for use in rural areas with rugged terrain and dispersed sewage sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Among them: 1-chassis; 2-sedimentation and filtration module; 3-electrocoagulation module; 4-adsorption and filtration module; 5-trailer hook; 6-support frame; 7-sedimentation tank; 8-gate; 9-coarse filter; 10-outlet pipe; 11-electrolytic cell; 12-coagulation and clarification area; 13-inclined plate and vane sedimentation area; 14-aluminum rod anode; 15-corrosion-resistant cathode; 16-pH regulator; 17-exhaust port; 18-non-woven fabric; 19-inclined plate; 20-semipermeable membrane filter; 21-outlet; 22-outlet pipe; 23-adsorption material; 24-water valve. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] A mobile modular rural sewage purification device includes a chassis 1, on which is a sedimentation and filtration module 2. The sedimentation and filtration module 2 includes a sedimentation tank 7 with an upper opening and a gate 8 and a coarse filter 9 on the upper side thereof. The gate 8 is connected to an electric flocculation module 3 through an outlet pipe 10. The electric flocculation module includes an electrolytic cell 11, a coagulation and clarification zone 12 and an inclined plate and vane sedimentation zone 13. The side of the electrolytic cell 11 is connected to the coagulation and clarification zone 12. A multi-layer non-woven fabric 18 is provided above the interior of the coagulation and clarification zone 12. The top of the coagulation and clarification zone 12 is connected to the inclined plate and vane sedimentation zone 13. A plurality of inclined plates 19 with multi-layer vanes are arranged in parallel inside the inclined plate and vane sedimentation zone 13. A semipermeable membrane filter 20 is provided above the inclined plate 19. A water outlet 21 is provided above the semipermeable membrane filter 20 and connected to an adsorption and filtration module 4 through an outlet pipe 22. A water valve 24 is provided at the bottom of the adsorption and filtration module 4.

[0022] The chassis 1 is a non-powered, two-wheeled platform with a trailer hook 5 and a support frame 6, allowing the device to be towed. The support frame 6 is foldable for easy stowage during towing. The various modules for sewage purification are mounted above the chassis 1. The sedimentation and filtration module 2 includes an open sedimentation tank 7 with a gate 8 and a coarse filter 9 on its upper side. These modules settle and filter the sewage and are connected to the electrocoagulation module 3 via an outlet pipe 10. The electrocoagulation module includes an electrolytic cell 11, a coagulation and clarification zone 12, and a sloping plate and vane settling zone 13.

[0023] The electrolytic cell 11 includes a replaceable aluminum rod anode 14 and a corrosion-resistant cathode 15, an external battery, and a pH regulator 16. An exhaust port 17 is provided above the corrosion-resistant cathode 15, and a catalytic hydrogen remover is installed on the exhaust port.

[0024] The coagulation and clarification zone 12 is connected to the electrolytic cell 11. The inclined plate and vane sedimentation zone 13 is an inclined column with an open top, and its lower part is connected to the upper part of the coagulation and clarification zone 12. The adsorption and filtration module 4 is a cylinder filled with an adsorption material 23 made by electrospinning.

[0025] When the device is in operation, the sewage to be purified is added into the sedimentation tank 7, and after standing and settling, the gate 8 at the upper part of the sedimentation tank is opened, and the upper layer of sewage flows out through the coarse filter screen 9 and enters the electrolytic tank 11 through the water outlet pipeline 10. The pH regulator 16 is used to maintain the pH of the solution in the electrolytic tank 11 to be neutral or weakly alkaline, the electrolytic tank 11 is electrified, a large number of aluminum ions are generated by the uninterrupted ionization of the aluminum rod anode 14, and the solution enters the coagulation and clarification zone 12, where alum flower particles are formed and rise to the inclined plate wing plate precipitation zone 13. Under the interception of the inclined plate 19 with multiple layers of wings, the alum flower is collected and sinks to the multiple layers of non-woven fabric 18 at the upper part of the coagulation and clarification zone, and a high-density network flocculation with a gel-like network structure is formed in the multiple layers of non-woven fabric 18. The network flocculation can effectively absorb suspended pollutants in the sewage. After the water rises to the top of the inclined plate wing plate precipitation zone 13, it is filtered through the semi-permeable membrane filter screen 20 and flows out through the water outlet 21. The semi-permeable membrane filter screen 20 is used to intercept the alum flower particles in the water. After the water flows into the adsorption and filtration module 4, small particle impurities are removed by filtering through the adsorption material 23, and the water flows to the water valve 24. Opening the water valve 24 can obtain purified water.

[0026] The water quality of the final water outlet of the device will basically meet the discharge requirements and can be discharged or used as landscape water.

[0027] The hydrogen gas generated in the electrolytic tank is discharged through the exhaust port 17, and a catalytic hydrogen remover is installed on the exhaust port.

[0028] The device uses the principle of communicating vessels, and water can naturally flow into and out of each purification module without the need for a water pump.

[0029] The wear and tear parts of the device, such as electrodes and adsorption and filtration modules, are designed in a modular manner, which is convenient for replacement.

[0030] The device can be towed by agricultural machinery or a car, which is convenient for use in rural areas with rugged terrain and scattered sewage sources.

Claims

1. A mobile modular rural sewage purification device, characterized in that: The invention comprises a chassis (1), wherein a sedimentation filtration module (2) is provided on the chassis (1), wherein the sedimentation filtration module (2) comprises a sedimentation tank (7) with an upper opening and a gate (8) and a coarse filter (9) on the upper side thereof, wherein the gate (8) is connected to an electric flocculation module (3) through an outlet pipe (10), and the electric flocculation module comprises an electrolytic tank (11), a coagulation and clarification zone (12) and an inclined plate vane sedimentation zone (13), wherein the electrolytic tank (11) is connected to the coagulation and clarification zone (12) on the side thereof, and the coagulation and clarification zone A multi-layer non-woven fabric (18) is provided above the interior of (12), and the top of the coagulation and clarification zone (12) is connected to the inclined plate wing sedimentation zone (13). A plurality of inclined plates (19) with multi-layer wings are arranged in parallel inside the inclined plate wing sedimentation zone (13). A semi-permeable membrane filter (20) is provided above the inclined plate (19), and a water outlet (21) is provided above the semi-permeable membrane filter (20), which is connected to the adsorption filter module (4) through the outlet pipe (22). A water valve (24) is provided at the bottom of the adsorption filter module (4).

2. The mobile modular rural sewage multiple purification device according to claim 1, characterized in that: The electrolytic cell (11) includes a replaceable aluminum rod anode (14) and a corrosion-resistant cathode (15), can be connected to an external battery, and is equipped with a pH regulator (16). An exhaust port (17) is provided on the top, and a catalytic hydrogen remover is installed on the exhaust port (17).

3. The mobile modular rural sewage purification device according to claim 1, characterized in that: The chassis (1) is a non-powered two-wheel platform having a trailer hook (5) and a support frame (6), and the support frame (6) is foldable.

4. The mobile modular rural sewage purification device according to claim 1, characterized in that: The adsorption filtration module (4) is in the shape of a vertical tube, and its internal filler is PVP, which is loaded with nano-iron oxide or activated carbon.

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