Farmland drainage collection and multi-water-source household treatment recycling system in arid region

Abstract

The utility model belongs to the technical field of water treatment, and discloses an arid area farmland drainage collection and multi-water-source household treatment recycling system, which is characterized in that a water treatment tank, an adjusting sedimentation tank and a water storage tank which are sequentially connected are arranged on the inner side of a concrete tank, and the water treatment tank is positioned in the middle of the downstream of a farmland drainage ditch and is positioned on the upstream of the water storage tank; the heights of partition walls from the water treatment tank to the reservoir are sequentially reduced; the water treatment tank is communicated with a riverway or underground water body through a water inlet pipe and a water suction pump and is communicated with a domestic sewage pipeline; the upper end of the reservoir is communicated with the irrigation pipeline through a water taking pipeline. Collected multiple water sources can be treated through the water treatment pond, the adjusting sedimentation pond can be used for adsorbing and precipitating solid substances and pollutants, water overflows into the water storage pond to be stored when the adjusting sedimentation pond is full, and when the water storage pond is full, the water overflows automatically and flows into a downstream drainage channel along a farmland drainage channel. And the water taking pipeline can be used for directly transferring water for peripheral irrigation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water treatment technical field especially relates to a dry region farmland drainage collection and multi -water source household treatment recycling system. BACKGROUND

[0002] With the increasingly prominent contradiction between supply and demand of fresh water resources, increasing irrigation water sources has become a common concern of all countries to solve the water crisis. The treatment and resource utilization of unconventional water such as reclaimed water, salt water, brackish water, rainwater and mine water are the research focus at present. On the one hand, after the treatment of unconventional water, irrigation can avoid the serious non-point source pollution caused by direct irrigation of untreated sewage, and provide important nutrients for plant growth, increase soil organic matter and thus improve soil fertility and productivity. On the other hand, the input of excessive nutrients, toxic chemicals and pathogens in unconventional water into the environment ecosystem will also cause a certain degree of environmental pollution, which may endanger the environment and human health. Irrigation with treated unconventional water can improve the utilization efficiency of nitrogen, phosphorus and other nutrient substances in irrigation water, save fertilizer, water and increase yield, while reducing the input of excess pollutants into the environment ecosystem, which is of great significance to the alleviation of China's water crisis, the prevention and control of non-point source pollution and the promotion of circular economy development.

[0003] In the arid region, water is extremely scarce, and various water sources need to be utilized. There are many chemical fertilizer and pesticide residues in farmland drainage, and there are also some useful nutrients such as nitrogen, phosphorus and potassium. Through certain treatment, the concentration of harmful substances can be reduced, and the nutrients can be retained, and then recycled, which can achieve the effect of water saving, fertilizer saving and pollution control. Therefore, the utility model provides a dry region farmland drainage collection and multi -water source household treatment recycling system, which collects and treats various water sources to reach the standard of resource utilization for recycling.

[0004] Through the above analysis, the problems and defects of the prior art are that there is no device for collecting and treating multiple water sources in the arid rural area in the prior art, and different water sources cannot be comprehensively pretreated. UTILITY MODEL CONTENT

[0005] In order to overcome the problems in the related art, the utility model discloses an embodiment of a dry region farmland drainage collection and multi -water source household treatment recycling system.

[0006] The technical scheme of the utility model is as follows: a dry region farmland drainage collection and multi -water source household treatment recycling system is provided with a concrete pool, a water treatment pool, an adjusting sedimentation pool and a water storage pool are sequentially connected in the inner side of the concrete pool, the water treatment pool is located at the middle position of the downstream of the farmland drainage ditch, the water treatment pool is located upstream of the water storage pool, and the height of the partition wall from the water treatment pool to the water storage pool decreases in sequence.

[0007] The water treatment tank is communicated with a river channel or an underground water body through a water inlet pipe and a water pump, and the water treatment tank is communicated with a domestic sewage pipeline;

[0008] The upper end of the water storage tank is communicated with an irrigation pipeline through a water taking pipeline.

[0009] In one embodiment, the inside of the water treatment tank is sequentially provided from top to bottom with a soil layer, a harmless solid waste mixture layer and a first gravel layer, and the upper side of the soil layer is planted with salt-tolerant aquatic plants.

[0010] In one embodiment, the thickness of the soil layer is 0-0.5 meters, the thickness of the harmless solid waste mixture layer is 0.5-1.0 meters, and the thickness of the first gravel layer is 1.0-1.5 meters.

[0011] In one embodiment, the harmless solid waste mixture layer adopts large-particle agricultural solid waste with a diameter of 0.5-1.5 cm, and the first gravel layer adopts large-particle gravel with a diameter of 0.5-1.0 cm.

[0012] In one embodiment, the inside of the water treatment tank is sequentially provided from top to bottom with a soil layer, a harmless solid waste mixture layer and a first gravel layer, and the upper side of the soil layer is planted with salt-tolerant aquatic plants.

[0013] In one embodiment, the water storage tank is lower than the adjusting and sedimentation tank by 0.05 meters.

[0014] In combination with all the above technical solutions, the utility model has the beneficial effects that: the utility model is provided with the water treatment tank, the adjusting and sedimentation tank and the water storage tank which are sequentially connected in the concrete tank, the water treatment tank can treat the collected multiple water sources, the adjusting and sedimentation tank can be used for adsorbing and depositing solid substances and pollutants, the adjusting and sedimentation tank is filled and overflows into the water storage tank for water storage, when the water storage tank is full, it automatically overflows and flows into the downstream drainage channel along with the farmland drainage ditch, and the water taking pipeline can be used for directly adjusting water for surrounding irrigation.

[0015] The utility model not only can make the environment beautiful, but also can efficiently collect and pretreat non-conventional water to reach the standard, and can be recycled for irrigation. The device is used for collecting various water sources and comprehensively pretreating the water sources, and compared with the traditional wetland, the device is more integrated into the environment beautification, the process is simpler, the efficiency is higher, the water quality is better, the cost and energy consumption are saved, the treated reclaimed water can be used for agricultural purposes, such as farmland irrigation and landscape water, and the device can save water, fertilizer and control pollution.

[0016] It is understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the disclosure of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate embodiments that conform to the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0018] Figure 1 is a structural schematic diagram of a dry region farmland drainage collection and multi-water source household treatment recycling system provided by the embodiments of the present application;

[0019] Figure 2 is a structural schematic diagram of a concrete pool provided by the embodiments of the present application;

[0020] In the figure: 1, concrete pool; 2, water treatment pool; 3, adjusting and depositing pool; 4, water storage pool; 5, domestic sewage pipeline; 6, water taking pipeline; 7, irrigation pipeline; 8, soil layer; 9, harmless solid waste mixture layer; 10, first gravel layer; 11, salt-tolerant aquatic plant; 12, second gravel layer; 13, water pump; 14, water tank / pool for irrigation. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purpose, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the concept of the present application, so the present application is not limited by the specific implementation disclosed below.

[0022] As shown in Figure 1 the embodiments of the present application provide a dry region farmland drainage collection and multi-water source household treatment recycling system, which comprises a concrete pool 1, a water treatment pool 2, an adjusting and depositing pool 3 and a water storage pool 4 are sequentially connected in the inside of the concrete pool 1, the water treatment pool 2 is located at the middle position of the downstream of the farmland drainage ditch, the water treatment pool 2 is located at the upstream of the water storage pool 4, and the height of the partition wall from the water treatment pool 2 to the water storage pool 4 decreases sequentially.

[0023] The length, width and height of the concrete pool 1 are 5-6 meters*2.0-3 meters*1.2-1.8 meters, and the size of the water treatment pool and the water storage adjusting pool is determined according to the requirement (for example, length, width and height: 2.5-3.0 meters*1.0-1.5 meters*1.2-1.8 meters).

[0024] The water treatment pool 2 is connected with a river channel or an underground water body through a water inlet pipe and a water pump 13, and the water treatment pool 2 is connected with a domestic sewage pipeline 5.

[0025] The upper end of the water storage pool 4 is connected with the irrigation pipeline 7 through the water taking pipeline 6. The water pump 13 and the water tank / pool 14 for irrigation are connected in the middle of the irrigation pipeline 7.

[0026] As Figure 2 shown, the water treatment tank 2 in the embodiment of the utility model is internally provided with soil layer 8, harmless solid waste mixture layer 9 and first gravel layer 10 from top to bottom, the soil layer 8 upside is planted with salt-tolerant aquatic plants 11 (such as cattail, water chives, salt bush, reed, etc.).

[0027] As preferred, the thickness of the soil layer 8 in the embodiment of the utility model is 0-0.5 meters (±0.1 meter), the thickness of the harmless solid waste mixture layer 9 is 0.5-1.5 meters (±0.2 meter), and the thickness of the first gravel layer 10 is 1.0-1.5 meters (±0.2 meter).

[0028] As preferred, the harmless solid waste mixture layer 9 in the embodiment of the utility model adopts large-particle agricultural solid waste (walnut shell, sawdust, straw residue, etc.) with a diameter of 0.5-1.5 cm, and the first gravel layer 10 adopts large-particle gravel with a diameter of 1.5-1.8 cm.

[0029] As preferred, the inside bottom of the adjusting sedimentation tank 3 in the embodiment of the utility model is paved with a 30cm-thick second gravel layer 12.

[0030] As preferred, the water storage tank 4 in the embodiment of the utility model is 0.05 meters lower than the adjusting sedimentation tank 3. The water adjusted and precipitated in the adjusting sedimentation tank 3 overflows into the water storage tank 4, which can also be used to directly collect rainwater and farmland drainage, but cannot collect other unconventional water.

[0031] Multi-source collection process:

[0032] Rainwater: directly into the rain, or surface runoff formed by rainwater flows into the soil slope;

[0033] Saline water, brackish water: use water inlet pipe and water pump 13 to extract from river or underground water body and then pour in.

[0034] Household rural domestic sewage: directly discharged into the domestic sewage pipeline 5 by individual households.

[0035] It should be noted that the rural domestic sewage is only connected to individual users, and cannot be connected to multiple users, because the concentration of domestic sewage pollution is high, and the amount cannot be too much. After the sewage of individual users is mixed with other multi-sources, the concentration is low, and the treatment by the utility model can reach the standard of agricultural irrigation. The basic principle is that the proportion of rural domestic sewage to other water sources should be less than 1:8. In this way, the concentration of rural domestic sewage is controlled, the fertility of multi-source reclaimed water is ensured, and at the same time, the soil of farmland is not polluted.

[0036] After the multi-water source is treated by the water treatment pool 2, water can be pumped by external force at any time during the water storage process of the water storage pool 4, and after pumping, irrigation can be directly carried out. Because this mode is suitable for farmland in a severe water shortage drought area, therefore, when used in farmland, the drip irrigation mode is preferred, so that the amount of multi-water source can be controlled, the amount of pollutants can be controlled, and because the drip irrigation flow is small, the water quantity is small, the water does not need to be treated too clean, the cost can be reduced, and waste and pollution can not be caused; at the same time, a small amount of nutrients can be irrigated with water, so that water and fertilizer can be saved, and non-point source pollution can be controlled.

[0037] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make any modification, equivalent replacement and improvement within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A system for collecting and processing drainage water from farmlands in arid regions, comprising a concrete pool (1), characterized in that, The concrete pool (1) is provided with a water treatment pool (2), an adjusting sedimentation pool (3) and a water storage pool (4) connected in sequence, the water treatment pool (2) is located at the middle position of the downstream of the farmland drainage ditch, the water treatment pool (2) is located at the upstream of the water storage pool (4), and the height of the partition wall from the water treatment pool (2) to the water storage pool (4) is lowered in sequence. The water treatment pool (2) is communicated with a river channel or an underground water body through a water inlet pipe and a water pump (13), and the water treatment pool (2) is communicated with a domestic sewage pipeline (5). The upper end of the water storage pool (4) is communicated with an irrigation pipeline (7) through a water taking pipeline (6).

2. The arid region farmland drainage collection and multi-water source separate household treatment recycling system according to claim 1, characterized in that, The water treatment pool (2) is provided with a soil layer (8), a harmless solid waste mixture layer (9) and a first gravel layer (10) from top to bottom in sequence, and the upper side of the soil layer (8) is planted with salt-tolerant aquatic plants (11).

3. The arid region farmland drainage collection and multi-water source separate household treatment recycling system according to claim 2, characterized in that, The thickness of the soil layer (8) is 0-0.5m, the thickness of the harmless solid waste mixture layer (9) is 0.5-1.5m, and the thickness of the first gravel layer (10) is 1.0-1.5m.

4. The arid region farmland drainage collection and multi-water source separate household treatment recycling system according to claim 3, characterized in that, The harmless solid waste mixture layer (9) adopts large-particle agricultural solid waste with a diameter of 0.5-1.5cm, and the first gravel layer (10) adopts large-particle gravel with a diameter of 1.5-1.8cm.

5. The arid region farmland drainage collection and multi-water source separate household treatment recycling system according to claim 1, characterized in that, The adjusting sedimentation pool (3) is provided with a 30cm-thick second gravel layer (12) on the bottom.

6. The arid region farmland drainage collection and multi-water source separate household treatment recycling system according to claim 5, characterized in that, The water storage pool (4) is 0.05m lower than the adjusting sedimentation pool (3).

Images