Tail water unpowered up-to-standard discharge treatment system

Abstract

The utility model belongs to the technical field of rural domestic sewage treatment, and discloses a tail water unpowered up-to-standard discharge treatment system which comprises a pretreatment tank and a tank body, the tank body comprises a tank body and a plurality of partition plates vertically arranged in the tank body, the tank body is divided into six treatment rooms, fillers in the rooms are different, each treatment room is provided with a water distribution pipe shaped like a Chinese character'hui ', and the water distribution pipes are connected with the tank body. The concentric-square-shaped water distribution pipes of the first, third and fifth treatment rooms are placed at the bottoms of the treatment rooms, and the concentric-square-shaped water distribution pipes of the second, fourth and sixth treatment rooms are placed at the tops of the treatment rooms. A water passing hole is formed in the partition plate of each chamber, and the height of the water passing hole is consistent with the placement height of the water distribution pipe of each treatment chamber; and the pretreatment tank and the tank body are buried and temporarily occupy the land during construction, and the constructed land recovers the original use function and does not occupy the land for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of rural sewage treatment, and particularly relates to a tail water non-powered up-to-standard discharge treatment system for domestic sewage that has been pretreated but still cannot meet the discharge standards. Background Technique

[0002] At present, rural domestic sewage is generally divided into three modes. One is the pipe network connection mode. The second is the mode of discharging up to the standard after treatment by power-consuming integrated equipment. The third is the resource utilization mode of being used for farmland irrigation after treatment by septic tanks, biogas digesters, and constructed wetlands. The pipe network connection mode requires the condition of being able to access the sewage pipe network at a short distance, but many rural areas do not have the condition of sewage pipe network coverage. Treating rural domestic sewage with power-consuming integrated equipment actually treats domestic sewage in a way that increases carbon emissions, increasing carbon emissions while consuming energy. Electricity costs and electrical equipment management fees are difficult problems for many village committees. Even if new energy such as solar energy is used, it still requires technical management personnel and maintenance funds. As a result, many power-consuming, micro-power-consuming, or solar integrated equipment have been deactivated. The resource utilization mode requires sufficient land around the treatment equipment to absorb the treated sewage. However, in densely populated areas at the junction of towns and townships, there are often no conditions for resource utilization after sewage treatment, and long-distance transportation is not cost-effective economically. The present invention is aimed at the treatment of rural domestic sewage at the village level in rural areas where resource utilization conditions are not available, and discharges it after non-powered up-to-standard treatment, achieving up-to-standard treatment of rural domestic sewage without consuming electricity and without increasing new carbon emissions. It has the advantages of relatively low pipe network investment, no power consumption, a long maintenance-free period, and local farmer technicians can complete the maintenance once every two years. After the equipment is built, the land can restore its original function and will not occupy the land for a long time, effectively solving the problem of equipment land occupation. Content of the Utility Model

[0003] The utility model aims to solve at least to a certain extent the above technical problems. For this reason, the purpose of the utility model is to provide a tail water non-powered up-to-standard discharge treatment system.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A tail water non-powered up-to-standard discharge treatment system includes a pool body and six treatment chambers therein. Adjacent treatment chambers are separated by partition boards. There are water passing holes on the partition boards to connect the water distribution pipes of each treatment chamber. The water distribution pipes of each treatment chamber are alternately placed at the top or bottom of the treatment chamber, and water distribution holes are evenly distributed on the water distribution pipes. The inlet of the pool body is connected to the outlet of the pretreatment pool. Different varieties of fillers are installed in each treatment chamber.

[0006] A tail water non-powered up-to-standard discharge treatment system includes a pool body and multiple partition boards vertically arranged in the pool body. The pool body is divided into six treatment rooms, and the fillers in each room are different. Each treatment room has a "hui"-shaped water distribution pipe. The "hui"-shaped water distribution pipes in the 1st, 3rd, and 5th treatment rooms are placed at the bottom of the treatment rooms, and the "hui"-shaped water distribution pipes in the 2nd, 4th, and 6th treatment rooms are placed at the top of the treatment rooms. There are water passing holes on the partition boards of each room, and the height of the water passing holes is the same as the placement height of the water distribution pipes in each treatment room. The inlet of the tail water up-to-standard discharge pool body is connected to the discharge port of the pretreatment pool. When this tail water non-powered up-to-standard discharge treatment system is in use, domestic sewage is pretreated and then treated by the tail water non-powered up-to-standard discharge treatment system. Finally, the purified water meets the discharge standards and is discharged. This tail water non-powered up-to-standard discharge treatment system does not require the installation of electromechanical equipment, does not consume electricity, has a long maintenance-free period, is easy to manage, and has low operation and maintenance costs. Both the pretreatment pool and the pool body are buried underground, temporarily occupying land during construction, and the land resumes its original use function after completion, without occupying land for a long time;

[0007] The pool body is divided into six treatment rooms, and adjacent treatment rooms are separated by partition boards. The partition boards are vertically arranged in the pool body. The partition boards connect the water distribution pipes of each treatment room. The water distribution pipes of each treatment room are alternately placed at the top and bottom of the treatment rooms. There are evenly distributed water distribution holes on the water distribution pipes. The inlet of the pool body is connected to the outlet of the pretreatment pool. Different varieties of fillers are installed in each treatment room of the pool body; each treatment room is provided with a water distribution pipe, and the water distribution pipes are alternately located at the top and bottom of each treatment room; there is a maintenance hole on each treatment room, and there is a cover plate on the maintenance hole. Each maintenance hole is set corresponding to each treatment room, and there is at least one exhaust pipe on the cover plate; the height of the water passing holes on the partition boards is the same as the water inlet of the water distribution pipe in the next treatment room.

[0008] The beneficial effects of the present invention are:

[0009] The tail water non-powered up-to-standard discharge treatment system provided by the present invention does not consume electricity, and the treatment process will not additionally increase carbon emissions; it has a long maintenance-free period, and there are no electricity costs and maintenance management costs for electrical equipment; the effluent can meet the national specified discharge standards; the land can resume its original function after completion, so the equipment will not occupy land for a long time; it provides an advanced green and low-carbon technology for rural areas that do not have the conditions for centralized treatment or resource utilization of rural domestic sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the tail water non-powered up-to-standard discharge treatment system of the present invention.

[0011] Figure 2 is a schematic diagram of the structure of the pool body.

[0012] Figure 3 is a schematic diagram of the distribution of water distribution pipes, water distribution holes, and water passing holes of the water distribution pipes.

[0013] In the figure: 1 - pretreatment tank; 2 - first tank body; 3 - second tank body; 4 - packing; 5, water distribution pipe; 6 - water distribution holes; 7 - partition board; 8 - water inlet; 9 - inspection port; 10 - exhaust pipe; 11 - water outlet pipe; 12 - water passing hole of the water distribution pipe. Specific embodiments

[0014] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0015] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements.

[0016] The present utility model will be further described below with reference to the drawings and specific embodiments.

[0017] As Figure 1 and Figure 2 shown, a tail water non-powered up-to-standard discharge treatment system of this embodiment, the tank body can either adopt a fiberglass biogas purification tank (less than 50 cubic meters) produced in a factory, or be designed and constructed according to local conditions, and the tank body is installed buried underground. The first tank body (2) mainly includes the second tank body (3), packing (4), water distribution pipe (5), water distribution holes (6), partition board (7), water inlet (8), inspection port (9), exhaust pipe (10), water outlet pipe (11). The second tank body (3) can be cuboid or cylindrical. After being designed according to the technical key points of the present invention, it can either be processed in a factory with materials such as fiberglass (less than 50 cubic meters), or be designed as a steel-concrete structure for on-site construction.

[0018] The partition plate (7) connects the water distribution pipes (5) of each treatment chamber. The water distribution pipes (5) of each treatment chamber are alternately placed at the top and bottom of the treatment chamber. The water distribution holes (6) are evenly distributed on the water distribution pipes (5); the filler (4) in the treatment chamber is prior art. The fillers in the six treatment chambers are in turn: large pebbles (diameter 100 - 200 mm), small pebbles (30 - 80 mm), charcoal, palm leaves and quartz sand (6 - 10 mm) placed in a staggered manner in four layers, columnar activated carbon, quartz sand (3 - 5 mm); the water distribution pipes are placed in a staggered manner at the bottom and top of the filler in each treatment chamber. The positions of the water distribution pipes from the first to the sixth are: bottom, top, bottom, top, bottom, top. The water distribution holes with a diameter of 3 mm are evenly arranged on the water distribution pipes. When the tail water non-powered up-to-standard discharge treatment system is in use, domestic sewage first undergoes pretreatment, and most of the organic matter in the sewage is effectively degraded and digested. The tail water discharged from the pretreatment equipment enters the first tank body (2) through the connecting pipe (8). After the tail water is treated to meet the discharge standard, it finally reaches the national rural domestic sewage discharge standard for discharge.

[0019] After entering the first tank body (2) from the drainage outlet of the pretreatment device through the connecting pipe, the residual substances in the tail water are gradually decomposed and digested by the microorganisms growing on the fillers in each treatment chamber, and finally enter the outlet pipe (11); the multi-stage arranged filler layers can better adapt to the treatment of rural sewage with unstable sewage volume. Moreover, this tail water non-powered up-to-standard discharge treatment system does not require the installation of additional electromechanical equipment, has a long maintenance-free period, generally needs to be cleaned out once every 2 - 3 years, is easy to maintain, does not require power consumption, has a very low operating cost, and effectively avoids treating rural domestic sewage at the cost of increasing carbon emissions.

[0020] An inspection port (9) is provided above each treatment chamber, and there is a movable cover plate on the inspection port for easy inspection; after 2 - 3 years of use or when it is temporarily needed, the inspection port can be opened to perform operations such as cleaning, replacing, or supplementing the filler layer.

[0021] The height of the partition plate (7) is lower than the height of the inner wall of the second tank body (3). The filling amount of the filler cannot exceed the height of the partition plate. In the 2nd, 4th, and 6th treatment chambers where the water distribution pipes are installed above the filler, the placement height of the water distribution pipes cannot exceed the partition plate. A ventilation pipe (10) is installed on the movable cover plate (9) to facilitate the entry of air.

[0022] The present utility model is not limited to the above optional implementation manners. Anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as the technical solutions fall within the scope defined by the claims of the present utility model, they all fall within the protection scope of the present utility model.

Claims

1. A tail water non-powered up-to-standard discharge treatment system, characterized in that: It includes a pool body and multiple partition boards vertically arranged in the pool body. The pool body is divided into six treatment rooms, and the fillers in each room are different. Each treatment room has a figure-eight-shaped water distribution pipe. The figure-eight-shaped water distribution pipes in the 1st, 3rd, and 5th treatment rooms are placed at the bottom of the treatment rooms, and the figure-eight-shaped water distribution pipes in the 2nd, 4th, and 6th treatment rooms are placed at the top of the treatment rooms; water passing holes are provided on the partition boards of each room, and the height of the water passing holes is the same as the placement height of the water distribution pipes in each treatment room; the inlet of the tail water up-to-standard discharge pool body is connected to the discharge port of the pretreatment pool, and both the pretreatment pool and the pool body are buried underground; The pool body is divided into six treatment rooms, and adjacent treatment rooms are separated by a partition board (7). The partition board (7) is vertically arranged in the first pool body (2), and the partition board (7) connects the water distribution pipes (5) of each treatment room. The water distribution pipes (5) of each treatment room are alternately placed at the top and bottom of the treatment room. Water distribution holes (6) are evenly distributed on the water distribution pipes (5). The inlet of the first pool body (2) is connected to the outlet of the pretreatment pool (1). Different varieties of fillers (4) are installed in each treatment room of the first pool body (2); each treatment room is provided with a water distribution pipe (5), and the water distribution pipes are alternately located at the top and bottom of each treatment room; each treatment room is provided with a maintenance opening (9), and a cover plate is provided on the maintenance hole. Each maintenance opening (9) is provided corresponding to each treatment room, and at least one exhaust pipe (10) is provided on the cover plate; the height of the water passing holes on the partition board (7) on the partition board is the same as the water inlet of the water distribution pipe in the next treatment room.

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