CN111285519A - System and process for treating sewage by utilizing photocatalytic nano material - Google Patents
System and process for treating sewage by utilizing photocatalytic nano material Download PDFInfo
- Publication number
- CN111285519A CN111285519A CN202010241988.6A CN202010241988A CN111285519A CN 111285519 A CN111285519 A CN 111285519A CN 202010241988 A CN202010241988 A CN 202010241988A CN 111285519 A CN111285519 A CN 111285519A
- Authority
- CN
- China
- Prior art keywords
- chamber
- light
- sewage
- water
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 47
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 40
- 239000002086 nanomaterial Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 23
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 13
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 241000195493 Cryptophyta Species 0.000 claims abstract description 11
- 241000894006 Bacteria Species 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 238000007146 photocatalysis Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 25
- 238000000746 purification Methods 0.000 claims description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 230000001965 increasing effect Effects 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000006004 Quartz sand Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 claims description 3
- 239000002957 persistent organic pollutant Substances 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 230000001954 sterilising effect Effects 0.000 abstract description 5
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 5
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000002245 particle Substances 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- -1 hydroxyl free radical Chemical class 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Abstract
The invention discloses a system for treating sewage by utilizing a photocatalytic nano material, which comprises a primary filter chamber, a secondary filter chamber, a gas recovery chamber and a light treatment chamber; the light processing chamber is respectively communicated with the primary filter chamber, the secondary filter chamber and the gas recovery chamber. The process comprises the following steps: sewage enters the light treatment chamber through the primary filter chamber; the light treatment chamber kills bacteria and algae in water; then discharged through the secondary filtering chamber; the gas recovery chamber recovers carbon dioxide. The invention utilizes the photocatalysis function of the nano titanium dioxide to carry out sterilization and algae removal treatment on the sewage, and is a safe and effective water treatment method; the illumination source of the nano titanium dioxide is natural light, and the nano titanium dioxide can replace an electric lamp to reduce the electric energy consumed by the electric lamp; the invention increases the contact area of light and nano titanium dioxide by utilizing the diffusion effect of the concave lens on the light, increases the light entering amount by utilizing the plane mirror inclined on the light collecting device, and increases the photon amount participating in photocatalysis, thereby obviously improving the photocatalysis effect.
Description
Technical Field
The invention relates to a system and a process for treating sewage, in particular to a system and a process for treating sewage by utilizing a photocatalytic nano material.
Background
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 is increasingly used in daily life of common people. The domestic sewage mainly contains organic matters such as carbohydrate, protein, amino acid, fat and the like, is suitable for the growth of bacteria, becomes a place for the survival and propagation of bacteria, algae and viruses, causes sewage malodor and seriously affects the living environment of surrounding residents.
The prior art methods for treating sewage mainly include filtration and sterilization. The filtration can remove insoluble solid particles in the sewage, but the small microorganisms such as bacteria, algae and the like are difficult to eliminate by the filtration. The commonly used method for killing bacteria and algae is to spray chlorine-containing disinfectant into sewage, which has good effect of killing microorganisms but has certain harm to human bodies and environment.
Disclosure of Invention
In order to solve the defects of the technology, the invention provides a system and a process for treating sewage by utilizing a photocatalytic nano material.
In order to solve the technical problems, the invention adopts the technical scheme that: a system for treating sewage by utilizing a photocatalysis nano material comprises a primary filter chamber, a secondary filter chamber, a gas recovery chamber and a light treatment chamber; the light processing chamber is respectively communicated with the primary filter chamber, the secondary filter chamber and the gas recovery chamber;
the interior of the light treatment chamber comprises a light inlet area and a water treatment area; the light inlet area is positioned above the water treatment area; the light inlet area comprises a concave lens fixed at the top end of the light treatment chamber, and a virtual focus of the concave lens is positioned in the water treatment area;
the water treatment area comprises a purification layer, and an inlet, a water outlet and an air outlet which are arranged on the wall of the chamber; the water outlet is positioned above the inlet;
the first-stage filter chamber is positioned at the inlet of the light treatment chamber, and a sewage inlet is formed in the first-stage filter chamber; the secondary filter chamber is positioned at the water outlet of the light treatment chamber and is provided with a filtered water outlet; the upper part of the light processing chamber is also provided with a gas outlet which is communicated with the gas recovery chamber through an exhaust pipe;
one or more purification layers; the purifying layer is filled with photocatalytic nano-material titanium dioxide; a plane mirror is arranged in the water treatment area; the plane mirror is tightly attached to the inner wall of the light treatment chamber.
Furthermore, the upper end of the light processing chamber is fixedly connected with a light collecting device for collecting light rays through a flange.
Further, the light collecting device is arranged on the flange through the connecting neck; the light collecting device is in a horn shape which is communicated up and down, and the diameter of an opening at the upper end of the light collecting device is larger than that of an opening at the lower end of the light collecting device; the inner wall of the light collecting device is fixedly provided with a plane mirror.
Furthermore, the concave lens is embedded in the light treatment chamber through a fixing sleeve, and a clamping groove is correspondingly formed in the inner wall of the light treatment chamber; the fixing sleeve is slidably clamped in the clamping groove.
Furthermore, a plane mirror or a stirring device is fixedly arranged on the bottom surface of the light treatment chamber.
Furthermore, an ultraviolet lamp or a fluorescent lamp is fixedly arranged on the bottom surface of the light processing chamber.
Further, a plurality of filter layers are arranged inside the primary filter chamber and the secondary filter chamber, and the filter layers include, but are not limited to, a quartz sand filter layer and an activated carbon filter layer.
Further, a ph meter and an acid-base adjusting device are arranged inside the secondary filtering chamber.
Further, an alkaline liquid is arranged in the gas recovery chamber; an air extractor is arranged in the exhaust pipe.
A process for treating sewage by utilizing a photocatalytic nano material comprises the following steps:
a. sewage is discharged into a first-stage filter chamber through a sewage inlet by a water pump, and non-dissolved substances and colored dissolved substances in the sewage are filtered and adsorbed in the first-stage filter chamber; then enters the light processing chamber through the inlet;
b. the concave lens of the light treatment chamber disperses and refracts visible light rays in the external environment into the water treatment area, so that the contact area between a purification layer filled with photocatalytic nano material titanium dioxide and light in the water treatment area is increased, and the nano titanium dioxide is catalyzed to generate a large amount of reactive active oxygen to kill bacteria and algae in water;
c. b, the water treated in the step b enters the secondary filter chamber from the water outlet to be subjected to adsorption treatment and acid-base regulation treatment, and is discharged from a filtered water outlet;
d. organic pollutants in the sewage are decomposed into carbon dioxide and water by the photocatalytic nano material, and the undissolved carbon dioxide enters the gas recovery chamber through the exhaust pipe to be recovered and decomposed.
The nanometer titanium dioxide photocatalysis effect of the invention generates reactive oxygen through light, and superoxide and hydroxyl free radical are generated under the irradiation of ultraviolet ray to destroy bacteria and algae cells, thereby realizing the function of killing bacteria and algae.
The concave lens is also called as a negative ball lens, and the middle of the lens is thin, and the edge of the lens is thick and is concave, so the lens is also called as a concave lens. The concave lens has a light diverging effect. A beam of light parallel to the main optical axis is diffused through the concave lens and can irradiate more places in the water treatment area, so that the irradiation surface of the light becomes wider and wider, the contact area of the nano titanium dioxide and the light is increased, and the photocatalytic effect is enhanced.
The invention has the following beneficial effects: the invention utilizes the photocatalysis function of the nano titanium dioxide to carry out sterilization and algae removal treatment on the sewage, and is a safe and effective water treatment method; in addition, the invention designs that the illumination source of the nano titanium dioxide is natural light, and the nano titanium dioxide can replace an electric lamp to reduce the electric energy consumed by the electric lamp; meanwhile, in order to enhance the photocatalytic effect, the contact area between the light and the nano titanium dioxide is increased by utilizing the diffusion effect of the concave lens on the light, the light collecting device is arranged, the entering amount of the light is increased by utilizing the plane mirror inclined on the light collecting device, and the quantity of photons participating in photocatalysis is increased, so that the photocatalytic effect can be obviously improved compared with the prior art.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic overall structure diagram of a fourth embodiment of the present invention.
In the figure: 1. a first-stage filter chamber; 2. a secondary filter chamber; 3. a gas recovery chamber; 4. a light processing chamber; 5. a concave lens; 6. a purification layer; 7. a sewage inlet; 8. a filtered water outlet; 9. an exhaust pipe; 10. a plane mirror; 11. a flange; 12. a light collecting device; 13. and (4) fixing sleeves.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The first embodiment,
FIG. 1 shows a system for treating sewage by using photocatalytic nanomaterial, which comprises a primary filtering chamber 1, a secondary filtering chamber 2, a gas recovery chamber 3 and a light treatment chamber 4; the light processing chamber is respectively communicated with the primary filter chamber, the secondary filter chamber and the gas recovery chamber; and a plurality of filter layers are arranged inside the primary filter chamber and the secondary filter chamber, and the filter layers comprise but are not limited to a quartz sand filter layer and an activated carbon filter layer. The quartz sand filter layer can remove insoluble solid particles in sewage, and the activated carbon filter layer further removes floating colored particles in water, so that the water is clear.
The interior of the light treatment chamber comprises a light inlet area and a water treatment area; the light inlet area is positioned above the water treatment area; the light inlet area comprises a concave lens 5 fixed at the top end of the light treatment chamber, and one virtual focus of the concave lens is positioned in the water treatment area; the concave lens is capable of receiving visible light over a sufficiently large range and refracting into the water treatment zone.
The concave lens is embedded in the light treatment chamber through a fixing sleeve 13, and a clamping groove is correspondingly formed in the inner wall of the light treatment chamber; the fixing sleeve is slidably clamped in the clamping groove. The fixed cover and the clamping groove are matched to form a detachable structure, so that the concave lens with different focuses and transmissivity can be replaced according to actual effects, and the concave lens can be detached to fill or replace the purification layer.
The water treatment area comprises a purification layer 6, and an inlet, a water outlet and an air outlet which are arranged on the wall of the chamber; the water outlet is positioned above the inlet, and a water pump can be arranged at the water outlet to promote water flow to pass through the purification layer.
The first-stage filter chamber is positioned at the inlet of the light treatment chamber, and a sewage inlet 7 is formed in the first-stage filter chamber; the secondary filter chamber is positioned at the water outlet of the light treatment chamber, and is provided with a filtered water outlet 8.
The upper part of the light processing chamber is also provided with a gas outlet which is communicated with the gas recovery chamber through a gas exhaust pipe 9. The gas recovery chamber is provided with an alkaline liquid such as sodium hydroxide; an air extractor is arranged in the exhaust pipe, and undissolved carbon dioxide generated by photocatalysis is pumped into the gas recovery chamber through the air extractor. Alkaline liquid such as sodium hydroxide in the gas recovery chamber can react with carbon dioxide to absorb the carbon dioxide.
For the purpose of reducing the pH value of the purified water caused by the generation, i.e. dissolution, of carbon dioxide in the water, a pH meter and an acid-base adjusting device are arranged inside the secondary filtering chamber. To control the pH of the filtered purified water.
One or more purification layers; the purifying layer is filled with photocatalytic nano-material titanium dioxide; a plane mirror 10 is arranged in the water treatment area; the plane mirror is tightly attached to the inner wall of the light treatment chamber.
The plane mirror is fixedly arranged on the bottom surface of the light treatment chamber, so that light can be reflected between the side wall plane mirror and the bottom surface plane mirror, the probability that the lower purification layer is exposed to light is increased, the catalysis effect of the photocatalytic nano material is enhanced, and the sterilization and purification effects are enhanced.
The process for treating sewage by using the photocatalytic nano material comprises the following steps:
a. sewage is discharged into a first-stage filter chamber through a sewage inlet by a water pump, and non-dissolved substances and colored dissolved substances in the sewage are filtered and adsorbed in the first-stage filter chamber; then enters the light processing chamber through the inlet;
b. the concave lens of the light treatment chamber disperses and refracts visible light rays in the external environment into the water treatment area, so that the contact area between a purification layer filled with photocatalytic nano material titanium dioxide and light in the water treatment area is increased, and the nano titanium dioxide is catalyzed to generate a large amount of reactive active oxygen to kill bacteria and algae in water;
c. b, the water treated in the step b enters the secondary filter chamber from the water outlet to be subjected to adsorption treatment and acid-base regulation treatment, and is discharged from a filtered water outlet;
d. organic pollutants in the sewage are decomposed into carbon dioxide and water by the photocatalytic nano material, and the undissolved carbon dioxide enters the gas recovery chamber through the exhaust pipe to be recovered and decomposed.
Example II,
The difference from the first embodiment is that: the bottom surface of the light processing chamber is fixedly provided with a stirring device; sodium peroxide is provided in the gas recovery chamber. In this embodiment, the stirring means can promote the flow of water in the water treatment zone, thereby increasing the contact area between the water and the purification layer, and thus enhancing the sterilization effect.
The gas recovery chamber is provided with hydrogen peroxide and replaces the pumping device. The sodium peroxide reacts with the carbon dioxide to produce oxygen, which balances the negative pressure caused by the absence of carbon dioxide in the light treatment chamber.
Example III,
The difference from the first embodiment is that: the bottom surface of the light processing chamber is fixedly provided with an ultraviolet lamp or a fluorescent lamp. The light processing chamber of the invention replaces an ultraviolet lamp in the prior art, but the invention has the defect that the light processing chamber can not be used and can only be stopped at night without light, so the light processing chamber is arranged to make up for the use in night scenes. Compared with the prior art that the ultraviolet lamp is used for irradiating for 24 hours continuously, the ultraviolet lamp can be used continuously in the day and at night, and a large amount of power can be saved.
Example four,
The difference from the first embodiment is that: the upper end of the light processing chamber is fixedly connected with a light collecting device 12 for collecting light rays through a flange 11. As shown in fig. 2, the light collecting means is mounted on the flange by means of a connecting neck; the light collecting device is in a horn shape which is communicated up and down, and the diameter of an opening at the upper end of the light collecting device is larger than that of an opening at the lower end of the light collecting device; the inner wall of the light collecting device is fixedly provided with a plane mirror.
When no light collecting device is installed, only the light rays vertical to the upper part of the light processing chamber can irradiate into the light processing chamber, the entering amount of the light rays is limited, and the catalytic effect of the photocatalytic nano material is limited, so that the actual water purifying effect is influenced. Thus, light collection means are added to the top of the light processing chamber. The light collecting device horn-shaped structure and the plane mirror installed on the inner wall can transmit more light rays to the light treatment chamber in a reflection mode, so that the quantity of photons entering the light treatment chamber is increased, and the photons with enough quantity can contact the nano titanium dioxide to perform catalytic reaction, thereby enhancing the water purification effect.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the technical scope of the present invention.
Claims (10)
1. A system for treating sewage by utilizing photocatalysis nano materials is characterized in that: the system comprises a primary filter chamber (1), a secondary filter chamber (2), a gas recovery chamber (3) and a light treatment chamber (4); the light processing chamber is respectively communicated with the primary filter chamber, the secondary filter chamber and the gas recovery chamber;
the interior of the light treatment chamber comprises a light inlet area and a water treatment area; the light inlet area is positioned above the water treatment area; the light inlet area comprises a concave lens (5) fixed at the top end of the light treatment chamber, and one virtual focus of the concave lens is positioned in the water treatment area;
the water treatment area comprises a purification layer (6) and an inlet, a water outlet and an air outlet which are arranged on the wall of the chamber; the water outlet is positioned above the inlet;
the primary filter chamber is positioned at the inlet of the light treatment chamber, and a sewage inlet (7) is formed in the primary filter chamber; the secondary filter chamber is positioned at the water outlet of the light treatment chamber and is provided with a filtered water outlet (8); the upper part of the light processing chamber is also provided with a gas outlet which is communicated with the gas recovery chamber through a gas exhaust pipe (9);
the purification layer is one or more; the purifying layer is filled with photocatalytic nano-material titanium dioxide; a plane mirror (10) is arranged in the water treatment area; the plane mirror is tightly attached to the inner wall of the light treatment chamber.
2. The system for treating sewage using photocatalytic nanomaterial according to claim 1, wherein: the upper end of the light processing chamber is fixedly connected with a light collecting device (12) for collecting light rays through a flange (11).
3. The system for treating sewage using photocatalytic nanomaterial according to claim 2, wherein: the light collecting device is arranged on the flange through the connecting neck; the light collecting device is in a horn shape which is communicated up and down, and the diameter of an opening at the upper end of the light collecting device is larger than that of an opening at the lower end of the light collecting device; the inner wall of the light collecting device is fixedly provided with a plane mirror.
4. The system for treating sewage using photocatalytic nanomaterial according to claim 1, wherein: the concave lens is embedded in the light treatment chamber through a fixing sleeve (13), and a clamping groove is correspondingly formed in the inner wall of the light treatment chamber; the fixing sleeve is slidably clamped in the clamping groove.
5. The system for treating sewage using photocatalytic nanomaterial according to claim 1, wherein: and a plane mirror or a stirring device is fixedly arranged on the bottom surface of the light treatment chamber.
6. The system for treating sewage using photocatalytic nanomaterial according to claim 1, wherein: and an ultraviolet lamp or a fluorescent lamp is fixedly arranged on the bottom surface of the light processing chamber.
7. The system for treating sewage using photocatalytic nanomaterial according to claim 1, wherein: and a plurality of filter layers are arranged in the first-stage filter chamber and the second-stage filter chamber, and the filter layers include but are not limited to a quartz sand filter layer and an activated carbon filter layer.
8. The system for treating sewage using photocatalytic nanomaterial according to claim 7, wherein: and a ph meter and an acid-base adjusting device are also arranged in the secondary filtering chamber.
9. The system for treating sewage using photocatalytic nanomaterial according to claim 8, wherein: alkaline liquid is arranged in the gas recovery chamber; an air extractor is arranged in the exhaust pipe.
10. A process for treating sewage by using the photocatalytic nanomaterial as set forth in claim 1, wherein: the process comprises the following steps:
a. sewage is discharged into a first-stage filter chamber through a sewage inlet by a water pump, and non-dissolved substances and colored dissolved substances in the sewage are filtered and adsorbed in the first-stage filter chamber; then enters the light processing chamber through the inlet;
b. the concave lens of the light treatment chamber disperses and refracts visible light rays in the external environment into the water treatment area, so that the contact area between a purification layer filled with photocatalytic nano material titanium dioxide and light in the water treatment area is increased, and the nano titanium dioxide is catalyzed to generate a large amount of reactive active oxygen to kill bacteria and algae in water;
c. b, the water treated in the step b enters the secondary filter chamber from the water outlet to be subjected to adsorption treatment and acid-base regulation treatment, and is discharged from a filtered water outlet;
d. organic pollutants in the sewage are decomposed into carbon dioxide and water by the photocatalytic nano material, and the undissolved carbon dioxide enters the gas recovery chamber through the exhaust pipe to be recovered and decomposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010241988.6A CN111285519A (en) | 2020-03-31 | 2020-03-31 | System and process for treating sewage by utilizing photocatalytic nano material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010241988.6A CN111285519A (en) | 2020-03-31 | 2020-03-31 | System and process for treating sewage by utilizing photocatalytic nano material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111285519A true CN111285519A (en) | 2020-06-16 |
Family
ID=71027345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010241988.6A Pending CN111285519A (en) | 2020-03-31 | 2020-03-31 | System and process for treating sewage by utilizing photocatalytic nano material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111285519A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176942A (en) * | 2020-10-29 | 2021-01-05 | 南京信息职业技术学院 | Corridor structure with river course purification performance |
| CN114671576A (en) * | 2022-05-05 | 2022-06-28 | 哈尔滨工业大学 | Organic sewage treatment device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006000688A (en) * | 2004-06-15 | 2006-01-05 | Seki:Kk | Water treatment apparatus using sunlight |
| CN101091900A (en) * | 2007-04-13 | 2007-12-26 | 西安交通大学 | Solar energy photocatalytic reactor based on condenser of composite paraboloid |
| CN101941745A (en) * | 2010-09-09 | 2011-01-12 | 河海大学 | Sunlight intensity stabilizing device for experiments |
| CN102976565A (en) * | 2012-12-24 | 2013-03-20 | 常州大学 | Miniature living sewage wastewater continuous processing device |
| US20160121295A1 (en) * | 2013-07-15 | 2016-05-05 | Zhongying Changjiang International New Energy Investment Co., Ltd. | Photocatalytic reaction system |
| CN108689534A (en) * | 2018-07-17 | 2018-10-23 | 苏州方舟环保科技有限公司 | A kind of waste water integration advanced treatment apparatus |
-
2020
- 2020-03-31 CN CN202010241988.6A patent/CN111285519A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006000688A (en) * | 2004-06-15 | 2006-01-05 | Seki:Kk | Water treatment apparatus using sunlight |
| CN101091900A (en) * | 2007-04-13 | 2007-12-26 | 西安交通大学 | Solar energy photocatalytic reactor based on condenser of composite paraboloid |
| CN101941745A (en) * | 2010-09-09 | 2011-01-12 | 河海大学 | Sunlight intensity stabilizing device for experiments |
| CN102976565A (en) * | 2012-12-24 | 2013-03-20 | 常州大学 | Miniature living sewage wastewater continuous processing device |
| US20160121295A1 (en) * | 2013-07-15 | 2016-05-05 | Zhongying Changjiang International New Energy Investment Co., Ltd. | Photocatalytic reaction system |
| CN108689534A (en) * | 2018-07-17 | 2018-10-23 | 苏州方舟环保科技有限公司 | A kind of waste water integration advanced treatment apparatus |
Non-Patent Citations (2)
| Title |
|---|
| 国家知识产权局专利文献部等: "《大气污染防治技术 专利竞争情报研究报告》", 31 January 2017, 知识产权出版社 * |
| 柳云骐等: "《材料化学》", 28 February 2013, 中国石油大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176942A (en) * | 2020-10-29 | 2021-01-05 | 南京信息职业技术学院 | Corridor structure with river course purification performance |
| CN114671576A (en) * | 2022-05-05 | 2022-06-28 | 哈尔滨工业大学 | Organic sewage treatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111285519A (en) | System and process for treating sewage by utilizing photocatalytic nano material | |
| CN108328725B (en) | Optical biological sewage treatment system with waveguide enhanced optical transmission | |
| CN210340579U (en) | UV photocatalysis sewage treatment plant | |
| CN205368041U (en) | Ultraviolet -ozone catalytic oxidation wastewater treatment device | |
| KR100720035B1 (en) | Water treatment apparatus and method using photocatalyst | |
| CN209161707U (en) | A kind of Titanium Dioxide bactericidal purifying sewage device | |
| CN205501047U (en) | Miniaturized sewage treatment unit | |
| CN111517478A (en) | Pd-TiO2Application of photocatalyst in algae inhibition and algae inhibition denitrification reactor | |
| CN208249977U (en) | Light intensity energy-saving sewage treating device | |
| CN106745488B (en) | Device for treating waste water by photocatalytic oxidation | |
| CN105967441A (en) | Sewage treatment system and method | |
| CN208684644U (en) | A kind of novel ship ballast water treatment plant | |
| JP3792577B2 (en) | Water treatment equipment using photocatalyst | |
| CN214611671U (en) | Photocatalysis ultrafiltration purifier | |
| CN108569744A (en) | A kind of ultraviolet sterilization apparatus for cyclic culture sewage disposal | |
| CN107673512A (en) | A kind of multiple purifying sewage disposal device | |
| CN210150883U (en) | Device for treating surfactant in sewage | |
| CN210030110U (en) | Device for removing algal toxins in water body by using high-strength ultraviolet light-hydrogen peroxide | |
| CN206751462U (en) | The device of photocatalysis oxidation treatment waste water | |
| CN2717937Y (en) | Ultraviolet water purifier | |
| CN211255620U (en) | Ozone oxidation pond for sewage treatment | |
| CN214570905U (en) | Reactor for treating wastewater by micro-nano oxygen bubbles in cooperation with photocatalysis | |
| CN209583912U (en) | A kind of sewage purifying and treating device with aeration performance | |
| CN217025415U (en) | Sterilizing equipment and reverse osmosis pure water system | |
| CN214781270U (en) | Photoinitiator production wastewater treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200616 |
|
| RJ01 | Rejection of invention patent application after publication |