A domestic sewage treatment system

Abstract

This invention discloses a domestic sewage treatment system, belonging to the field of sewage treatment technology, comprising: a solid waste filter box, a sewage inlet, a biological treatment box, and a solid waste outlet channel; the top end of the solid waste filter box is provided with a sewage inlet, and a solid waste filtration device is provided inside the solid waste filter box; the sewage outlet side of the solid waste filter box is connected to the biological treatment box, and the other side of the solid waste outlet side is connected to the solid waste outlet channel. This invention has the advantages of simple and compact device structure, effectively preventing solid pollutants from clogging the biofilm pores, and can solve the problem that direct biological treatment of domestic sewage containing a large amount of solid pollutants will clog the biofilm pores.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to a domestic sewage treatment system. Background Art

[0002] As people's living standards improve, domestic sewage discharge is becoming more and more serious. In this form, domestic sewage treatment technology is also constantly improving. Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, catering, etc., and is increasingly entering the daily life of ordinary people, which is of great significance to social development. Biological treatment is one of the commonly used sewage treatment processes. Through the action of microorganisms, organic matter, nitrogen, phosphorus and other pollutants in water can be removed economically and effectively. Algae have the characteristics of rapid reproduction, strong vitality, safety and non-toxicity, etc., which can effectively eliminate odor troubles, prevent the breeding of pathogens, mosquitoes and flies, and solve water pollution problems.

[0003] When domestic sewage contains a large amount of solid pollutants, direct biological treatment will have a greater destructive effect on the biofilm, such as clogging the biofilm pores and increasing the cost of the biofilm. Summary of the invention

[0004] In view of this, the present invention provides a domestic sewage treatment system, which has the advantages of simple and compact device structure and can effectively prevent solid pollutants from clogging the biofilm pores. It can solve the problem that direct biological treatment will clog the biofilm pores due to the large amount of solid pollutants in domestic sewage.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A domestic sewage treatment system comprises: a solid waste filter box, a sewage inlet, a biological treatment box and a solid waste outlet channel; a sewage inlet is arranged at one end of the top of the solid waste filter box, a solid waste filter device is arranged in the solid waste filter box, a sewage output side below the solid waste filter box is connected to the biological treatment box, and the other side of the solid waste output below is connected to the solid waste outlet channel; the biological treatment box is made of a light-transmitting material; the solid waste filter device comprises a rotating shaft, a hollow plate and an elastic filter screen, the rotating shaft is arranged through the inner wall of the solid waste filter box, a plurality of the hollow plates are evenly arranged axially on the rotating shaft, the elastic filter screen is arranged on the side of the hollow plate facing the sewage outlet, and a spring is arranged between the elastic filter screen and the hollow plate.

[0007] Furthermore, the biological treatment box is made of light-transmitting material.

[0008] Furthermore, a stopper is provided at one end of the hollow plate away from the rotating shaft.

[0009] Furthermore, a shaft protection device is provided between adjacent hollow plates on the shaft, and the shaft protection device includes a fixed seat, a groove, a connecting rod and an arc-shaped baffle. The fixed seat is fixedly connected to the shaft, and the groove is provided in the fixed seat. One end of the connecting rod is inserted into the groove, and the other end is fixedly connected to the arc-shaped baffle. A spring is connected between the bottom of the groove and the connecting rod.

[0010] Furthermore, a triangular guide block is provided on the inner wall of the solid waste filter box below the sewage inlet, and the triangular guide block is located above the solid waste filter device.

[0011] Furthermore, an activated sludge layer is provided at the bottom of the biological treatment box, and a water outlet is provided on the inner wall of the biological treatment box. The water outlet is located above the activated sludge layer, and algae are planted above the activated sludge layer.

[0012] Furthermore, the algae organism is selected from Chlorella, Scenedesmus or Spirulina.

[0013] Furthermore, a thermostat is provided on the top of the biological treatment box, and a temperature control end of the thermostat passes through the top of the biological treatment box and extends to the bottom.

[0014] Furthermore, a rotating end cover is provided on the top of the biological treatment box.

[0015] Furthermore, the bottom of the solid waste outlet channel is a detachable end cover, a solid waste storage box is arranged under the detachable end cover, and a box door is arranged on the inner wall of the solid waste storage box.

[0016] Beneficial effects of the present invention:

[0017] The setting of the solid waste filter box and the biological treatment box integrates physical solid-liquid separation filtration and biological filtration. The device has a simple and compact structure, which can effectively prevent solid pollutants from clogging the biofilm pores. It can solve the problem that the domestic sewage contains a lot of solid pollutants and direct biological treatment will clog the biofilm pores; the coordination of the elastic filter and the spring can effectively prevent the solid waste from remaining on the elastic filter and causing the elastic filter to be blocked; the setting of the block allows the solid waste to remain on the elastic filter after the sewage passes through the solid waste filter device, preventing the solid waste from falling into the biological treatment box below; the shaft protection device can effectively prevent the sewage from scouring the shaft and prevent the solid waste from being entangled on the shaft; the biological treatment box uses transparent material so that the organisms in the biological treatment box can get sunlight irradiation; the setting of the triangular guide block can guide the sewage to the solid waste filtering device to prevent the sewage from directly entering the biological treatment box without passing through the solid waste filtering device; the setting of the activated sludge layer can provide nutrients for the organisms in the biological treatment box; the setting of the constant temperature box can keep the algae in the biological treatment box at a suitable temperature to avoid being affected by the low temperature in winter and the high temperature in summer; the setting of the rotating end cover is convenient for users to add items to the biological treatment box and clean it; the setting of the detachable end cover and the solid waste storage box allows the device to remove the detachable end cover when no one is handling the solid waste coming out of the solid waste outlet channel, so that the solid waste can be stored in the solid waste storage box without manual care. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a structural diagram of a solid dirt filtering device.

[0021] Among them, in the figure:

[0022] 1-solid waste filter box; 2-sewage inlet; 3-biological treatment box; 4-solid waste outlet channel; 5-solid waste filter device; 6-rotating shaft; 7-hollow plate; 8-elastic filter screen; 9-block; 10-fixed seat; 11-groove; 12-connecting rod; 13-arc baffle; 14-triangular guide block; 15-activated sludge layer; 16-water outlet; 17-constant temperature box; 18-rotating end cover; 19-detachable end cover; 20-solid waste storage box; 21-box door. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Please see attached Figure 1-2 , the present invention provides a domestic sewage treatment system, comprising: a solid waste filter box 1, a sewage inlet 2, a biological treatment box 3 and a solid waste outlet channel 4;

[0025] A sewage inlet 2 is provided at one end of the top of the solid waste filter box 1, and a solid waste filter device 5 is provided in the solid waste filter box 1. The sewage output side of the solid waste filter box 1 is connected to the biological treatment box 3, and the other side of the solid waste output is connected to the solid waste outlet channel 4. The biological treatment box 3 is made of a light-transmitting material so that the organisms in the biological treatment box 3 can be exposed to sunlight. The solid waste filter device 5 includes a rotating shaft 6, a hollow plate 7 and an elastic filter screen 8. The rotating shaft 6 is arranged on the inner wall of the solid waste filter box 1, and a plurality of hollow plates 7 are evenly arranged on the rotating shaft 6 in the axial direction, preferably five or six. The elastic filter screen 8 is provided on the side of the hollow plate 7 facing the sewage outlet, and a spring is provided between the elastic filter screen 8 and the hollow plate 7. A stopper 9 is provided at one end of the hollow plate 7 away from the rotating shaft 6. A shaft protection device is provided between adjacent hollow plates 7 on the shaft 6, and the shaft protection device includes a fixing seat 10, a groove 11, a connecting rod 12 and an arc-shaped baffle 13. The fixing seat 10 is fixedly connected to the shaft 6, and the fixing seat 10 is provided with the groove 11. One end of the connecting rod 12 is inserted into the groove 11, and the other end is fixedly connected to the arc-shaped baffle 13. A spring is connected between the bottom of the groove 11 and the connecting rod 12. When the device is working, part of the sewage does not flow to the elastic filter 8 to rush to the shaft 6. The shaft protection device can effectively reduce the scouring of the shaft 6 by the sewage, and when the sewage flows away and leaves solid dirt, the spring in the shaft protection device rebounds without the suppression of the water flow, and the solid dirt is shaken off, thereby effectively avoiding the solid dirt from being entangled on the shaft 6. A triangular guide block 14 is provided on the inner wall of the solid waste filter box 1 below the sewage inlet 2. The triangular guide block 14 is located above the solid waste filter device 5. The setting of the triangular guide block 14 guides the sewage entering from the sewage inlet 2 to the solid waste filter device 5. An activated sludge layer 15 is provided at the bottom of the biological treatment box 3. An outlet 16 is provided on the inner wall of the biological treatment box 3. The outlet 16 is located above the activated sludge layer 15. Algae are planted above the activated sludge layer 15. The setting of the activated sludge layer 15 provides nutrients for the algae. The algae are preferably Chlorella, Scenedesmus or Spirulina. A thermostat 17 is provided on the top of the biological treatment box 3. The temperature control end of the thermostat 17 passes through the top of the biological treatment box 3 and extends to the bottom; the setting of the thermostat 17 allows the algae to be always in a suitable temperature to avoid being affected by the low temperature in winter and the high temperature in summer. A rotating end cover 18 is disposed on the top of the biological treatment box 3 to facilitate adding and removing items from the biological treatment box 3 and cleaning.The bottom of the solid waste outlet passage 4 is a detachable end cap 19, a solid waste storage box 20 is arranged under the detachable end cap 19, and a box door 21 is arranged on the inner wall of the solid waste storage box 20. The arrangement of the detachable end cap 19 and the solid waste storage box 20 allows the device to remove the detachable end cap 19 when no one is handling the solid waste coming out of the solid waste outlet passage 4, so that the solid waste can be stored in the solid waste storage box 20 without manual care.

[0026] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A domestic sewage treatment system, characterized in that: include: A solid waste filter box (1), a sewage inlet (2), a biological treatment box (3) and a solid waste outlet channel (4); A sewage inlet (2) is provided at one end of the top of the solid waste filter box (1), a solid waste filtering device (5) is provided inside the solid waste filter box (1), a sewage output side below the solid waste filter box (1) is connected to the biological treatment box (3), and the other side below the solid waste output is connected to the solid waste outlet channel (4); The solid waste filtering device (5) comprises a rotating shaft (6), a hollow plate (7) and an elastic filter screen (8); the rotating shaft (6) is arranged to penetrate the inner wall of the solid waste filtering box (1); a plurality of the hollow plates (7) are evenly arranged axially on the rotating shaft (6); the elastic filter screen (8) is arranged on the side of the hollow plate (7) facing the sewage outlet; and a spring is arranged between the elastic filter screen (8) and the hollow plate (7); A rotating shaft protection device is provided between adjacent hollow plates (7) on the rotating shaft (6), and the rotating shaft protection device comprises a fixing seat (10), a groove (11), a connecting rod (12) and an arc-shaped baffle (13). The fixing seat (10) is fixedly connected to the rotating shaft (6), the fixing seat (10) is provided with the groove (11), one end of the connecting rod (12) is inserted into the groove (11), and the other end is fixedly connected to the arc-shaped baffle (13), and a spring is connected between the bottom of the groove (11) and the connecting rod (12).

2. A domestic sewage treatment system according to claim 1, characterized in that: The biological treatment box (3) is made of a light-transmitting material.

3. A domestic sewage treatment system according to claim 1, characterized in that: A stopper (9) is provided at one end of the hollow plate (7) away from the rotating shaft (6).

4. A domestic sewage treatment system according to claim 1, characterized in that: A triangular guide block (14) is provided on the inner wall of the solid waste filter box (1) below the sewage inlet (2), and the triangular guide block (14) is located above the solid waste filter device (5).

5. A domestic sewage treatment system according to claim 1, characterized in that: An activated sludge layer (15) is provided at the bottom of the biological treatment box (3), and a water outlet (16) is provided on the inner wall of the biological treatment box (3). The water outlet (16) is located above the activated sludge layer (15), and algae are planted above the activated sludge layer (15).

6. A domestic sewage treatment system according to claim 5, characterized in that: The algae organism is selected from Chlorella, Scenedesmus or Spirulina.

7. A domestic sewage treatment system according to claim 1, characterized in that: A thermostatic box (17) is arranged on the top of the biological treatment box (3), and the temperature control end of the thermostatic box (17) passes through the top of the biological treatment box (3) and extends to the bottom.

8. A domestic sewage treatment system according to claim 1, characterized in that: A rotating end cover (18) is provided on the top of the biological treatment box (3).

9. A domestic sewage treatment system according to claim 1, characterized in that: The bottom of the solid waste outlet channel (4) is a detachable end cover (19), a solid waste storage box (20) is arranged under the detachable end cover (19), and a box door (21) is arranged on the inner wall of the solid waste storage box (20).

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