Modularized rural small-house sewage treatment device with porous microbial medium

Abstract

The utility model provides a modularized rural small house type sewage treatment device with a porous microbial medium, which comprises the following structures: a plurality of front settling tanks, the water inlet sides of the front settling tanks are fixedly provided with water inlet pipes, and the opposite sides of two adjacent front settling tanks are respectively communicated with a water inlet and a water outlet of a water vapor exchange pipe; the water inlet end of the biochemical box is fixedly provided with an unpowered water spraying module, and the inner side of the biochemical box is fixedly provided with a plurality of porous microbial medium filler layers, so that the treatment efficiency is greatly improved; pollutants in domestic wastewater can be effectively decomposed, the cost is low, and the porous microbial medium filler can accelerate attachment and growth of microorganisms and maintain the activity of aerobic microorganisms under the unpowered condition.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of sewage treatment, and in particular to a modular rural small-sized household sewage treatment device with a porous microbial medium. Background Art

[0002] The biological sewage treatment equipment commonly used in the market for small rural households mainly adopts purification tanks, small AO, or artificial rapid infiltration processes. These processes still have defects and shortcomings. The purification tank process excessively pursues reducing the volume, and the internal units are highly integrated into a box. When the system does not work well, the high integration becomes an obstacle to troubleshooting. At the same time, a box that is too small will also lead to a shortened hydraulic retention time, which means that the treatment efficiency will be greatly reduced, and extending the hydraulic retention time requires the installation of additional return water pumps.

[0003] In addition, in order to avoid poor microbial activity and odor during decomposition due to insufficient ventilation, purification tanks and small AO equipment usually need to be equipped with additional blowers to increase aeration, which also increases additional operation and maintenance costs; artificial rapid infiltration processes usually use highly permeable gravel as the infiltration medium, but the gravel medium lacks water retention. If there is no one to operate and maintain the equipment for a long time, the microorganisms in the equipment will die and fall off due to drought and lack of water in the medium, causing the hydraulic channel to be blocked, resulting in system failure; traditional small-scale biological sewage treatment devices in rural areas are often too integrated or built on-site. If they need to be upgraded, they will be replaced or re-planned and constructed, which increases the cost and difficulty of the transformation.

[0004] In order to overcome the shortcomings of traditional technologies such as excessive equipment integration affecting troubleshooting efficiency, the need to add an electrically driven return water system to improve treatment effects due to insufficient hydraulic retention time, the need to introduce electrically driven ventilation equipment due to insufficient aeration, the poor water retention of gravel media resulting in insufficient drought resistance and sewage plugging capacity of the system, and the need to redesign and reconstruct during upgrading and renovation, which increases costs, the utility model provides a modular rural sewage treatment device, which has a material with high fine pores as a microbial medium to increase hydraulic retention time and maintain system humidity to support microbial activity when the water inlet is reduced, while the ventilation pipeline in the device can provide zero-energy aeration to the greatest extent, thereby increasing the conditions for aerobic respiration of microorganisms. In addition, the modular design of the device can adjust the unit combination as needed, and is easy to install. Utility Model Content

[0005] 1. Technical problems solved by the utility model:

[0006] The utility model provides a modular rural small-sized household sewage treatment device with a porous microbial medium, which solves the technical problems raised in the above-mentioned background technology.

[0007] 2. Technical solution:

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is: a modular rural small-sized household sewage treatment device with porous microbial medium, comprising the following structure:

[0009] A plurality of front sedimentation boxes are provided with a water inlet pipe on the water inlet side of the front sedimentation boxes, and opposite sides of two adjacent front sedimentation boxes are respectively connected with the water inlet and the water outlet of the water vapor exchange pipe.

[0010] A biochemical box, wherein a non-powered water sprinkling module is fixedly arranged at the water inlet end of the biochemical box, and a plurality of porous microbial medium filling layers are fixedly arranged on the inner side of the biochemical box, wherein the porous microbial medium filling layers are filled with porous microbial media.

[0011] Furthermore, a first maintenance port is fixedly provided on the outside of the pre-sedimentation tank, and sewage in two adjacent pre-sedimentation tanks flows in in an upflow manner through the water vapor exchange pipe.

[0012] Furthermore, a second maintenance port is fixedly provided on the outer side of the biochemical box, and a water outlet pipe is fixedly provided on the bottom of the biochemical box, and a water inlet of the water outlet pipe extends between the porous microbial medium filler layer and the bottom of the inner wall of the biochemical box.

[0013] Furthermore, a plurality of ventilation pipes are fixedly arranged on the outer side of the biochemical box, and the air holes of the ventilation pipes are arranged close to the porous microbial medium filler layer.

[0014] Furthermore, a plurality of material racks are fixedly arranged on the inner side of the biochemical box, and a porous microbial medium filling layer filling cavity is fixedly arranged on the top of the material rack.

[0015] Furthermore, the unpowered water sprinkling module includes a water diversion pipe, the outer side of the water diversion pipe is fixedly connected to the water inlet of the biochemical tank, the water inlet of the water diversion pipe extends to the front sedimentation tank close to the biochemical tank, the water outlet of the water diversion pipe extends to the top of the inner wall of the biochemical tank, and a spray plate is fixedly provided at the water outlet of the water inlet pipe, and the water outlet of the spray plate faces the porous microbial medium filling layer.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0018] The utility model provides a modular rural small-sized household sewage treatment device with porous microbial media, which greatly improves the treatment efficiency. Compared with the traditional process, the utility model adopts the principle of aerobic, anoxic and anaerobic respiration of microorganisms, which can effectively decompose pollutants in domestic wastewater, and has low cost. The porous microbial media filler configured in the utility model can accelerate the attachment and growth of microorganisms in the absence of power, and maintain the activity of aerobic microorganisms;

[0019] The utility model provides a modular rural small-sized sewage treatment device with porous microbial media, which has a long hydraulic retention time. The excellent hydrophilicity, fine pore properties, and high biological attachment rate of the porous microbial media filler can effectively prolong the hydraulic retention time, improve the stability of sewage treatment and stabilize the effluent quality.

[0020] The utility model provides a modular rural small-sized household sewage treatment device with a porous microbial medium, which reduces sludge production and prolongs the service life of the equipment. The utility model makes full use of the principle of aerobic, anoxic and anaerobic respiration of microorganisms, combines the high hydrophilicity and high specific surface area of ​​the microbial medium, promotes the rapid formation of an ideal biofilm in the device, and reduces the amount of sludge generated due to insufficient treatment.

[0021] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0023] Figure 2 It is a half-section stereoscopic diagram of the biochemical box structure of the utility model;

[0024] Figure 3 This utility model Figure 2 A magnified view of the structure in the middle.

[0025] Reference numerals:

[0026] Pre-sedimentation tank-1;

[0027] Water inlet pipe-2;

[0028] Water vapor exchange pipe-3;

[0029] Biochemical tank-4; water outlet pipe-41; ventilation pipe-42;

[0030] Non-powered water spraying module-5; water diversion pipe-51; spraying plate-52;

[0031] Porous microbial medium filler layer-6;

[0032] Material rack -7. DETAILED DESCRIPTION

[0033] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0034] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element; when an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element; the terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] See attached Figure 1-3 The utility model provides a modular rural small-sized household sewage treatment device with a porous microbial medium, comprising the following structure:

[0037] A plurality of pre-sedimentation boxes 1 are provided with a water inlet pipe 2 at the water inlet side of the pre-sedimentation box 1, and opposite sides of two adjacent pre-sedimentation boxes 1 are respectively connected with the water inlet and the water outlet of the water vapor exchange pipe 3.

[0038] The biochemical box 4 has a non-powered water sprinkling module 5 fixedly disposed at the water inlet end thereof, and a plurality of porous microbial medium filling layers 6 fixedly disposed on the inner side of the biochemical box 4 , wherein the porous microbial medium filling layers 6 are filled with porous microbial medium.

[0039] In this embodiment, Figure 1 and Figure 2 As shown, a first maintenance port is fixedly provided on the outside of the pre-sedimentation tank 1 , and sewage in two adjacent pre-sedimentation tanks 1 flows in in ascending flow through the water vapor exchange pipe 3 .

[0040] Adjacent pre-sedimentation tanks 1 are connected via water vapor exchange pipes 3 for pre-treatment of sewage.

[0041] The design of the water inlet facilitates the introduction of sewage into the front sedimentation tank 1 for static sedimentation treatment of the sewage. The design of the first maintenance port facilitates the user to observe the situation in the front sedimentation tank 1 in time and handle it.

[0042] In this embodiment, Figure 1 and Figure 2 As shown, a second maintenance port is fixedly provided on the outer side of the biochemical box 4 , and a water outlet pipe 41 is fixedly provided on the bottom of the biochemical box 4 , the water inlet of which extends between the porous microbial medium filler layer 6 and the bottom of the inner wall of the biochemical box 4 .

[0043] The second maintenance port design of the biochemical box 4 is convenient for the user to observe the situation in the biochemical box 4 and handle it in time, and the water outlet pipe 41 is convenient for the treated water in the biochemical box 4 to be discharged.

[0044] In this embodiment, Figure 1 and Figure 2 As shown, a plurality of ventilation pipes 42 are fixedly arranged on the outer side of the biochemical box 4 , and the air holes of the ventilation pipes 42 are arranged close to the porous microbial medium filler layer 6 .

[0045] The design of the ventilation pipe 42 provides aerobic conditions for the porous microbial medium filler layer 6, and cooperates with the porous microbial medium filler layer 6 to treat sewage.

[0046] In this embodiment, Figure 2 and Figure 3 As shown, a plurality of material racks 7 are fixedly arranged on the inner side of the biochemical box 4, and a porous microbial medium filling layer 6 filling cavity is fixedly arranged on the top of the material rack 7.

[0047] The material rack 7 is used to place the porous microbial medium filling layer 6 and cooperate with the unpowered water sprinkling module 5 to treat sewage.

[0048] In this embodiment, Figure 2 and Figure 3 As shown, the unpowered water sprinkling module 5 includes a water diversion pipe 51, the outer side of the water diversion pipe 51 is fixedly connected to the water inlet of the biochemical box 4, the water inlet of the water diversion pipe 51 extends to the front sedimentation box 1 near the biochemical box 4, and the water outlet of the water diversion pipe 51 extends to the top of the inner wall of the biochemical box 4. A spray plate 52 is fixedly provided at the water outlet of the water inlet pipe 2, and the water outlet of the spray plate 52 faces the porous microbial medium filling layer 6.

[0049] The water pipe 51 and the spray plate 52 are arranged to introduce the sewage after static sedimentation in the pre-sedimentation tank 1 into the biochemical tank 4 for treatment.

[0050] Specific operation process:

[0051] According to the actual situation, 0 to 2 or more pre-sedimentation tanks 1 and 1 biochemical tank 4 may be provided in the equipment, and a first maintenance port and a second maintenance port may be provided outside the pre-sedimentation tank 1 and the biochemical tank 4 to facilitate regular checking of the treatment status.

[0052] The pre-sedimentation tank 1 is mainly used for the precipitation of solid pollutants, in which hydrolysis and anaerobic digestion reactions of some organic pollutants will also be carried out. The ventilation pipe 42, the unpowered water sprinkling module 5 and the porous microbial medium filling layer 6 on the biochemical tank 4 cooperate with each other. The ventilation pipe 42 can provide an aerobic environment for microorganisms and has the effect of enhancing the aerobic decomposition of pollutants. The unpowered water sprinkling module 5 will evenly spread the inflowing sewage on the porous microbial medium filling layer 6. The porous microbial medium on the porous microbial medium filling layer 6 promotes the rapid formation of an ideal biofilm in the device, effectively prolonging the hydraulic retention time and improving the sewage treatment efficiency.

[0053] This product is in a closed state except for the water inlet pipe 2, the water outlet pipe 41 and the ventilation pipe 42, and the sewage enters each treatment unit in turn through the connecting pipes for treatment.

[0054] The treatment efficiency is greatly improved. Compared with the traditional process, the utility model adopts the principles of aerobic, anoxic and anaerobic respiration of microorganisms, which can effectively decompose pollutants in domestic wastewater.

[0055] The utility model has low cost, and the porous microbial medium filler configured in the utility model can accelerate the attachment and growth of microorganisms and maintain the activity of aerobic microorganisms in the absence of power.

[0056] The hydraulic retention time is long. The excellent hydrophilicity, water retention, fine pore properties, and high biological attachment rate of the porous microbial media filler can effectively prolong the hydraulic retention time, improve the stability of sewage treatment and stabilize the effluent quality.

[0057] To reduce sludge production and extend the service life of equipment, the utility model fully utilizes the principles of aerobic, anoxic and anaerobic respiration of microorganisms, combines the properties of high water holding capacity and high specific surface area of ​​microbial media, promotes the rapid formation of an ideal biofilm in the device, and reduces the amount of sludge generated due to insufficient treatment.

[0058] Modularity: the number of cabinets can be adjusted according to needs.

[0059] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A modular rural small-sized household sewage treatment device with porous microbial media, characterized in that: Includes the following structure: A plurality of front sedimentation boxes (1), wherein a water inlet pipe (2) is fixedly provided on the water inlet side of the front sedimentation box (1), and opposite sides of two adjacent front sedimentation boxes (1) are respectively connected to the water inlet and the water outlet of the water vapor exchange pipe (3); A biochemical box (4), wherein a non-powered water sprinkling module (5) is fixedly provided at a water inlet end of the biochemical box (4), and a plurality of porous microbial medium filling layers (6) are fixedly provided on the inner side of the biochemical box (4), wherein the porous microbial medium filling layers (6) are filled with porous microbial medium.

2. A modular rural small-sized household sewage treatment device with porous microbial medium according to claim 1, characterized in that: The front sedimentation tank (1) is provided with a first maintenance port on the outside thereof, and sewage in two adjacent front sedimentation tanks (1) flows in in an upflow manner through the water vapor exchange pipe (3).

3. A modular rural small-sized household sewage treatment device with porous microbial medium according to claim 1, characterized in that: A second maintenance port is fixedly provided on the outer side of the biochemical box (4), and a water outlet pipe (41) is fixedly provided on the bottom of the biochemical box (4), wherein the water inlet of the water outlet pipe (41) extends between the porous microbial medium filler layer (6) and the bottom of the inner wall of the biochemical box (4).

4. A modular rural small-sized household sewage treatment device with porous microbial medium according to claim 1, characterized in that: A plurality of ventilation pipes (42) are fixedly arranged on the outside of the biochemical box (4), and the air holes of the ventilation pipes (42) are arranged close to the porous microbial medium filler layer (6).

5. A modular rural small-sized household sewage treatment device with porous microbial medium according to claim 1, characterized in that: A plurality of material racks (7) are fixedly provided on the inner side of the biochemical box (4), and a porous microbial medium filling layer (6) filling cavity is fixedly provided on the top of the material rack (7).

6. A modular rural small-sized household sewage treatment device with porous microbial medium according to claim 1, characterized in that: The non-powered water sprinkling module (5) comprises a water diversion pipe (51), the outer side of the water diversion pipe (51) is fixedly connected to the water inlet of the biochemical tank (4), the water inlet of the water diversion pipe (51) extends into a front sedimentation tank (1) close to the biochemical tank (4), the water outlet of the water diversion pipe (51) extends to the top of the inner wall of the biochemical tank (4), and a spray plate (52) is fixedly provided at the water outlet of the water inlet pipe (2), and the water outlet of the spray plate (52) faces the porous microbial medium filling layer (6).

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