CN112520940A

CN112520940A - Photocatalytic biological reaction system

Info

Publication number: CN112520940A
Application number: CN202011298617.8A
Authority: CN
Inventors: 陈志海; 赵高纯; 时勇; 牛学文
Original assignee: Nanjing Puhua Technology Co ltd
Current assignee: Nanjing Puhua Technology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-03-19

Abstract

The invention discloses a photocatalytic biological reaction system, which comprises a photocatalytic device body and an adjusting tank, wherein the photocatalytic device body also comprises a photocatalytic tank, a denitrification biological filter, a collecting tank and a backwashing water tank, the inner walls of the left side and the right side of the photocatalytic tank are fixedly connected with fixed light sources, the inner bottom of the photocatalytic tank is fixedly connected with a stirring motor, the top of the left side of the adjusting tank is fixedly provided with a water inlet and a grating, the bottom of the right side of the adjusting tank is provided with a water pump, the top of the water pump is fixedly connected with a connecting hose, one end of the connecting hose, which is far away from a water pump, is arranged in the photocatalytic tank, the top of the collecting tank is provided with the backwashing water tank, and the backwashing water tank is connected. In the invention, when the photocatalytic tank is used, a photocatalyst is required to be added into the photocatalytic tank, organic matters in sewage are degraded under the irradiation of the photocatalyst and a fixed light source, the sewage treated by the photocatalytic tank enters the denitrification biological filter, and the sewage is treated by utilizing a double-layer filter material and microorganisms in a synergistic manner.

Description

Photocatalytic biological reaction system

Technical Field

The invention belongs to the technical field of sewage treatment, and particularly relates to a photocatalytic biological reaction system.

Background

The topics about water pollution are continuously raised, particularly the problem of underground water pollution, the concern of water pollution is unprecedented due to arousal of environmental awareness of people, and sewage treatment is carried out: the sewage is purified to reach the water quality requirement of being discharged into a certain water body or being reused. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and increasingly enters the daily life of common people, and the sewage treatment method in the current society generally adopts a biomembrane method, a photocatalytic network, a chemical reaction and the like;

the photocatalysis net in the prior art only carries out catalytic reaction on sewage through a simple photocatalysis net, has lower treatment efficiency, and still has the problem that the treated sewage can not reach the discharge standard.

Disclosure of Invention

The invention aims to: in order to solve the problems that the photocatalytic net in the prior art only carries out catalytic reaction on sewage through a simple photocatalytic net, the treatment efficiency is low, and the sewage after treatment still has the problem that the sewage cannot reach the discharge standard, a photocatalytic biological reaction system is provided.

The technical scheme adopted by the invention is as follows: the utility model provides a photocatalysis biological reaction system, includes photocatalysis net device body and equalizing basin, inside photocatalysis pond, collecting pit, denitrification biological filter and the backwash water tank on collecting pit upper portion of still including photocatalysis pond, collecting pit, denitrification biological filter of the device body. Photocatalysis pond internally mounted has first inlet tube, first inlet tube is located photocatalysis pond bottom fixed mounting has first water distribution hole, bottom fixed mounting has agitator motor in the photocatalysis pond, the last stirring vane that installs of agitator motor, photocatalysis pond internally mounted is fixed with fixed light source, water inlet and grid are installed on equalizing basin left side upper portion, the water pump is installed to the right bottom in the equalizing basin, the water pump passes through the hose and links to each other with first inlet tube. The utility model discloses a denitrification biological filter, including denitrification biological filter, first water inlet, second water inlet, denitrification biological filter, water outlet, collecting pit top, backwash water tank left side bottom fixed mounting has the delivery port, the delivery port passes through PPR union coupling backwash water distribution dish, denitrification biological filter is inside to be provided with first filter layer and second filter layer, denitrification biological filter right side top fixed mounting has backwash water outlet, denitrification biological filter bottom fixed mounting has backwash water distribution dish, denitrification biological filter right side bottom fixed mounting has the filtration delivery port, the delivery port is connected with the hose drainage, collecting pit top fixed mounting has backwash water tank, backwash water tank left side bottom fixed mounting has the delivery port, the delivery port passes through PPR union coupling backwash water distribution dish.

In a preferred embodiment, the first filter layer is a millimeter-grade quartz sand and volcanic rock mixed filter material.

In a preferred embodiment, the second filter layer is a micron-sized flexible fibrous filter material.

In a preferred embodiment, the photocatalyst pool needs to be sprinkled with the composite photocatalyst.

In a preferred embodiment, the fixed light source in the photocatalytic cell is adjusted according to the performance of the photocatalyst.

In a preferred embodiment, the water outlet is connected with the backwashing water distribution tray through a PPR pipe.

In a preferred embodiment, the fixed light source has corrosion resistance, temperature resistance, aging resistance, high strength and other characteristics.

In a preferred embodiment, the spray head can stably and uniformly distribute water in the water distribution process.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

in the invention, when the photocatalytic tank is used, a photocatalyst is required to be added into the photocatalytic tank, organic matters in sewage are degraded under the irradiation of the photocatalyst and a fixed light source, the sewage treated by the photocatalytic tank enters the denitrification biological filter, and the sewage is treated by the double-layer filter material and microorganisms in a synergistic manner.

Drawings

FIG. 1 is a schematic diagram of a photocatalytic bioreactor system according to the present invention;

the labels in the figure are: 1-a photocatalytic net device body, 2-a photocatalytic tank, 3-a collecting tank, 4-a denitrification biological filter tank, 5-a backwashing water tank, 6-an adjusting tank, 7-a first water inlet pipe, 8-a first water distribution hole, 9-a stirring motor, 10-a stirring blade, 11-a fixed light source, 12-a water inlet, 13-a screen, 14-a water pump, 15-a second water inlet, 16-a spray head, 17-a first filter layer, 18-a second filter layer, 19-a backwashing water outlet pipe orifice, 20-a water outlet, 21-a water outlet, 22-a backwashing water distribution plate and 23-a filtering water outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the technical scheme adopted by the invention is as follows: a photocatalysis biological reaction system comprises a photocatalysis net device body 1 and an adjusting tank 6, wherein the inside of the photocatalysis net device body 1 also comprises a photocatalysis tank 2, a collecting tank 3, a denitrification biological filter 4 and a backwashing water tank 5 arranged at the upper part of the collecting tank 3, a composite photocatalyst is required to be scattered in the photocatalysis tank 2, a first water inlet pipe 7 is arranged in the photocatalysis tank 2, the first water inlet pipe 7 is fixedly arranged at the bottom in the photocatalysis tank 2 and is provided with a first water distribution hole 8, a stirring motor 9 is fixedly arranged at the bottom in the photocatalysis tank 2 and is provided with a stirring blade 10, a fixed light source 11 is fixedly arranged in the photocatalysis tank 2, the fixed light source 11 in the photocatalysis tank 2 is adjusted according to the performance of the photocatalyst, the fixed light source 11 has the characteristics of corrosion resistance, temperature resistance, aging resistance, high strength and the like, a water inlet 12 and a grid 13 are arranged at the upper part of the left side of the adjusting tank 6, and a water pump 14 is arranged at the right bottom in the regulating tank 6, and the water pump 14 is connected with the first water inlet pipe 7 through a hose. The second water inlet 15 is positioned at the upper left side of the denitrification biological filter 4, the second water inlet 15 is fixedly provided with a spray head 16 through a PPR pipe, the spray head 16 can stably and uniformly distribute water in the water distribution process, a first filter layer 17 and a second filter layer 18 are arranged in the denitrification biological filter 4, the first filter layer 17 is millimeter-grade quartz sand, the volcanic mixed filter material comprises a volcanic mixed filter material, a second filter layer 18 is a micron-sized flexible fiber filter material, a backwash water outlet pipe opening 19 is fixedly mounted at the top of the right side of the denitrification biological filter, a backwash water distribution disc 22 is fixedly mounted at the bottom of the denitrification biological filter 4, a filter water outlet 23 is fixedly mounted at the bottom of the right side of the denitrification biological filter 4, a hose is connected to a water outlet 20 for drainage, a backwash water tank 5 is fixedly mounted at the top of a collection pool 3, a water outlet 21 is fixedly mounted at the bottom of the left side of the backwash water tank 5, and the water outlet 21 is connected with the backwash water distribution disc 22.

The working principle is as follows: when the photocatalytic tank is used, a photocatalyst is required to be added into the photocatalytic tank 2, organic matters in sewage are degraded under the irradiation of the photocatalyst and the fixed light source 11, the sewage treated by the photocatalytic tank 2 enters the denitrification biological filter 4, and the sewage is treated by the double-layer filter material and microorganisms in a synergistic manner.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a photocatalysis biological reaction system, includes photocatalysis net device body (1) and equalizing basin (6), its characterized in that: the photocatalysis device body (1) is internally provided with a photocatalysis tank (2), a collecting tank (3), a denitrification biological filter (4) and a backwashing water tank (5) at the upper part of the collecting tank (3). Photocatalytic tank (2) internally mounted has first inlet tube (7), bottom fixed mounting has first water distribution hole (8) in first inlet tube (7) is located photocatalytic tank (2), bottom fixed mounting has agitator motor (9) in photocatalytic tank (2), agitator motor is last to install stirring vane (10), photocatalytic tank (2) internally mounted is fixed with fixed light source (11), water inlet (12) and grid (13) are installed on equalizing basin (6) left side upper portion, water pump (14) are installed to right bottom in equalizing basin (6), water pump (14) link to each other with first inlet tube (7) through the hose. The second water inlet (15) is positioned at the upper left side of the denitrification biological filter (4), the second water inlet (15) is fixedly provided with a spray head (16) through a PPR pipe, a first filter layer (17) and a second filter layer (18) are arranged in the denitrification biological filter (4), a backwashing water outlet pipe mouth (19) is fixedly arranged at the top of the right side of the denitrification biological filter, a backwashing water distribution tray (22) is fixedly arranged at the bottom of the denitrification biological filter (4), a filtering water outlet (23) is fixedly arranged at the bottom of the right side of the denitrification biological filter (4), the water outlet (20) is connected with a hose for draining water, the top of the collecting tank (3) is fixedly provided with a backwashing water tank (5), a water outlet (21) is fixedly arranged at the bottom of the left side of the backwashing water tank (5), the water outlet (21) is connected with a backwashing water distribution disc (22) through a PPR pipe.

2. A photocatalytic bioreaction system as in claim 1 wherein: the first filter layer (17) is a millimeter-scale quartz sand and volcanic rock mixed filter material.

3. A photocatalytic bioreaction system as in claim 1 wherein: the second filter layer (18) is a micron-sized flexible fiber filter material.

4. A photocatalytic bioreaction system as in claim 1 wherein: and a composite photocatalyst is required to be scattered in the photocatalytic tank (2).

5. A photocatalytic bioreaction system as in claim 1 wherein: the fixed light source (11) in the photocatalytic cell (2) is adjusted according to the performance of the photocatalyst.

6. A photocatalytic bioreaction system as in claim 1 wherein: the water outlet (21) is connected with the backwashing water distribution disc (22) through a PPR pipe.

7. A photocatalytic bioreaction system as in claim 1 wherein: the fixed light source (11) has the characteristics of corrosion resistance, temperature resistance, aging resistance, high strength and the like.

8. A photocatalytic bioreaction system as in claim 1 wherein: the spray head (16) can stably and uniformly distribute water in the water distribution process.