CN209815909U - System for biologically coupling photocatalysis synchronous processing is difficult for degrading organic waste water - Google Patents
System for biologically coupling photocatalysis synchronous processing is difficult for degrading organic waste water Download PDFInfo
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- CN209815909U CN209815909U CN201920327271.6U CN201920327271U CN209815909U CN 209815909 U CN209815909 U CN 209815909U CN 201920327271 U CN201920327271 U CN 201920327271U CN 209815909 U CN209815909 U CN 209815909U
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Abstract
The utility model relates to a system for synchronously treating refractory organic wastewater by biological coupling photocatalysis, which comprises a sand filter device and a biological coupling photocatalysis device which are sequentially communicated along the flowing direction of wastewater; the biological coupling photocatalysis device comprises a reactor, an ultraviolet light source, a hollow quartz tube shield, a micropore aeration device, a biomembrane photocatalysis carrier and a bracket; a micropore aeration device is arranged at the bottom of the reactor, a bracket is arranged above the micropore aeration device, the lower end of a biological membrane photocatalysis carrier is fixed on the bracket, a hollow quartz tube shield is fixed in the middle of the reactor, and an ultraviolet light source is arranged in the shield; the sand filter device comprises a filter material and filter cloth. The utility model provides a system for biological coupling photocatalysis synchronous processing difficult degradation organic waste water can realize degrading the difficult degradation organic matter fast, high-efficiently, and whole system can the steady operation, and the energy consumption is low.
Description
Technical Field
The utility model relates to an organic waste water treatment field, concretely relates to system for biologically coupling photocatalysis synchronous processing difficult degradation organic waste water.
Background
With the acceleration of the industrialized process of China, the problem of water pollution is increasingly serious, serious harm is caused to the living environment of human beings, and the problem of water pollution is urgently solved. The organic pollutants contained in the polluted water body have the characteristics of multiple types and great harm, wherein part of the organic pollutants can not be biodegraded, and also contain toxic and harmful substances, once the organic pollutants are discharged into the natural water body, the organic pollutants are difficult to degrade, the water body is possibly eutrophicated, a large amount of aquatic organisms are killed, the biodiversity is endangered, and the polluted organisms can influence the health of human beings along a biological chain. Compared with the traditional physical, chemical and biological treatment methods, the novel refractory organic wastewater treatment technology, such as an immobilization treatment technology, an advanced oxidation technology, a microorganism coupling photocatalysis technology and the like, has the characteristics of strong oxidation capacity, high reaction speed, thorough oxidation, no secondary pollution and the like, and has wide development prospect.
The photocatalytic oxidation coupling biological combination technology for treating organic wastewater is a hotspot of research in recent years, and the photocatalytic oxidation technology is firstly utilized to pretreat the organic wastewater so as to convert organic matters which are difficult to be degraded by microorganisms into substances which can be degraded by the microorganisms, and then the photocatalytic treatment is carried out so as to completely degrade and remove organic pollutants in the wastewater. Compared with a single photocatalytic oxidation technology or a biological method, the coupling technology can fully exert the respective advantages of the photocatalytic oxidation and the biological method, and has more thorough wastewater treatment and higher efficiency. At present, indirect coupling photocatalytic oxidation and biodegradation processes are common, for example, chinese patent publication No. CN108751332A discloses a photocatalytic-biodegradable water treatment device and method, in which pollutants in a water body are degraded by active species generated on the surface of a photocatalytic fiber fabric, and then discharged into a biodegradation device, and the pollutants are further adsorbed and degraded by a suspended filler. Chinese patent No. CN1161290C discloses a method and apparatus for treating wastewater containing dibasic acid, which comprises adjusting the pH of the wastewater, treating the wastewater with a biological fluidized bed, and subjecting the wastewater to catalytic oxidation in a photocatalytic oxidation apparatus. The indirect coupling process needs two reactors of advanced oxidation and biodegradation, which increases the occupied area and the construction cost, and in addition, the time required by each unit must be dynamically changed according to the quality of inlet water, the advanced oxidation degradation efficiency and the biodegradation efficiency, so that the biodegradability of a photocatalytic product is difficult to control, and the operation cost and the control difficulty of the reactors are increased. Chinese patent No. CN201264955Y discloses an airlift internal circulation reactor integrating photocatalytic oxidation and biodegradation, which averagely divides the reactor into a photocatalytic oxidation zone and a biological reaction zone, fails to sufficiently combine photocatalytic and biological degradation, realizes the synchronous operation of photocatalytic oxidation and biological degradation, and does not consider the influence of the inlet water turbidity on the photocatalytic efficiency.
Disclosure of Invention
The utility model aims at providing a system for biological coupling photocatalysis synchronous processing difficult degradation organic waste water to the problem among the prior art.
In order to achieve the above purpose, the utility model provides a technical scheme is:
a system for synchronously treating refractory organic wastewater by biological coupling photocatalysis comprises a sand filter device and a biological coupling photocatalysis device which are sequentially communicated along the flowing direction of wastewater;
the biological coupling photocatalysis device comprises a reactor, an ultraviolet light source, a hollow quartz tube shield, a micropore aeration device, a biomembrane photocatalysis carrier and a support; a micropore aeration device is arranged at the bottom of the reactor, a bracket is arranged above the micropore aeration device, the lower end of a biological membrane photocatalysis carrier is fixed on the bracket, a hollow quartz tube shield is fixed in the middle of the reactor, and an ultraviolet light source is arranged in the shield;
the sand filter device comprises a filter material and a filter cloth, and the filter cloth prevents loss of the filter material.
Still include fountain water installations, fountain water installations and sand filtration device link to each other, and the waste water pipeline gets into fountain water installations behind the sand filtration device, and fountain water installations's shower head is located in biological coupling photocatalysis device's the reactor.
An organic matter monitor is arranged at the outlet of the biological coupling photocatalytic device and is connected with a PLC control system; the organic matter detector is used for detecting the content of organic matters in water at the outlet of the biological coupling photocatalysis device; and the PLC control system is used for monitoring data of the organic matter detector and controlling the on-off of a water inlet electromagnetic valve, a water pump and a water outlet electromagnetic valve of the biological coupling photocatalytic device.
The solar energy power generation system comprises a solar cell module and a storage battery, and is connected with the ultraviolet light source to provide electric energy for the light source.
The filtering material at the lower part in the sand filtering device is garnet filtering material with the diameter of 2-3mm, and the filtering material at the upper part is quartz sand filtering material with the diameter of 0.5-1.5 mm.
The sand filtration effluent is sprayed into the biological coupling photocatalysis device, and the spray header is 20-30cm lower than the upper edge of the reactor.
The reactor is cylindrical, the diameter is 0.7-1.0m, and the height of the reactor is 1.5-2.0 m.
The lower end of the biomembrane photocatalytic carrier is fixed on a support, the diameter of the support is 0.5-0.8m, the number of the carriers is 15-25, and the length is 0.8-1.0 m; the biomembrane photocatalytic carrier is polyurethane sponge or foam formed by connecting fiber materials in series, the polyurethane sponge or foam is of a cubic structure, and the side length of each side is 3-5 cm.
The ultraviolet light source is powered by solar energy, and the power of the lamp tube is 200-400W.
Has the advantages that:
the utility model discloses a sand filter device gets rid of the suspended solid in the organic waste water, does the preliminary treatment for biological coupling photocatalysis. The biological coupling photocatalysis device directly couples the photocatalysis oxidation technology and the biodegradation technology, so that the photocatalysis oxidation technology and the biodegradation technology are synchronously carried out, and compared with an indirect coupling mode, the biological coupling photocatalysis device reduces the operation cost and the treatment difficulty, and reduces the occupied area of equipment and the cost. Meanwhile, the photocatalytic light source is powered by the solar power generation system, so that the operation cost is further reduced. The PLC control system carries out real-time intelligent monitoring on the system process, and the running stability is ensured.
The utility model provides a system for biological coupling photocatalysis synchronous processing difficult degradation organic waste water can realize degrading the organic matter fast, high-efficiently, and complete system can the steady operation, and the energy consumption is low, has fine reference meaning to the actual production application.
Drawings
FIG. 1 is a schematic diagram of a system for synchronously treating refractory organic wastewater by biological coupling photocatalysis.
Description of reference numerals: 100-a first valve; 110-a first water pump; 200-a sand filtration unit; 210-filter cloth; 300-a second valve; 310-a second water pump; 400-a reactor; 410-spray type water inlet device; 420-a source of ultraviolet light; 430-hollow quartz tube shield; 440-a biofilm photocatalytic carrier; 450-a scaffold; 460-micro pore aeration device; 470-organic matter monitor; 480-a third valve; 500-a solar cell module; 510-a battery; 600-PLC control system.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
As shown in fig. 1, the utility model provides a system for synchronously treating refractory organic wastewater by biological coupling photocatalysis, wherein a first valve 100 and a first water pump 110 are opened to feed water into the system, and the wastewater flowing direction is communicated with a sand filter device 200 and a biological coupling photocatalysis device in sequence; wherein, the biological coupling photocatalysis device comprises a reactor 400, an ultraviolet light source 420, a hollow quartz tube shield 430, a micropore aeration device 460, a biomembrane photocatalysis carrier 440 and a bracket 450; the bottom of the reactor is provided with a micropore aeration device 460, a bracket 450 is arranged above the micropore aeration device 460, the lower end of the biomembrane photocatalysis carrier 440 is fixed on the bracket 450, the middle of the reactor 400 is fixed with a hollow quartz tube shield 430, and an ultraviolet light source 420 is arranged in the shield. The sand filtration device further comprises a filter material and a filter cloth 210, which prevents loss of the filter material.
The spray type water inlet device 410 is connected with the sand filter device, and the wastewater enters the biological coupling photocatalysis device in a spray mode after being filtered by the sand filter device, so that the oxidation degree of organic matters is improved; the organic matter detector 470 detects the content of organic matters in water at the outlet of the biological coupling photocatalysis device; the PLC control system 600 monitors data of the organic substance detector, and controls the opening and closing of the electromagnetic second valve 300, the second water pump 310, and the electromagnetic third valve 480. The solar power generation system includes a solar cell module 500 and a storage battery 510; the solar power system is connected to the ultraviolet light source 420 to provide electrical power to the light source.
The organic wastewater flows into a sand filtration device 200 to remove suspended matters; the filtering material at the lower part in the sand filtering device is a garnet filtering material with the diameter of 2-3mm, and the filtering material at the upper part is a quartz sand filtering material with the diameter of 0.5-1.5 mm; the wastewater after sand filtration enters a biological coupling photocatalysis device for organic matter degradation treatment; the sand-filtered effluent is sprayed into a biological coupling photocatalysis device, and a spray head is 20-30cm lower than the upper edge of the reactor 400; the micro-porous aeration device 460 keeps the wastewater to be treated in the reactor in a flowing state and increases the dissolved oxygen content in the reactor; the reactor is cylindrical, the diameter is 0.7-1.0m, and the height of the reactor is 1.5-2.0 m; the lower end of the biomembrane photocatalytic carrier 440 is fixed on a bracket 450, the diameter of the bracket is 0.5-0.8m, the number of the carriers is 15-25, and the length is 0.8-1.0 m; the carrier is a polyurethane sea with fiber materials connected in seriesCotton or foam, polyurethane sponge or foam cubic structure, with side length of 3-5cm, average pore diameter of 2-4mm, and density of 0.8-1.5g cm-3(ii) a The material of the fiber material comprises one or more of polyester fiber, polyamide fiber and polyethylene fiber; coating a photocatalytic response agent on the outer side of the polyurethane sponge or foam, wherein the photocatalytic response agent is one or more of titanium dioxide, noble metal modified titanium dioxide, a titanium dioxide-graphene compound and a graphene-like phase carbon nitride compound, the mass ratio of the photocatalytic response agent to the polyurethane sponge or foam is 1:1-1:3, and after the photocatalytic response agent is loaded, inoculating microorganisms into the polyurethane sponge or foam by adopting an activated sludge method and culturing the microorganisms; the carrier loaded with the photocatalytic response agent is soaked in activated sludge of an aerobic section of a sewage treatment plant A2/O process and aerated for 24 hours, and then the carrier is placed into a full-mixing type continuous flow device for culture at the temperature of 20-25 ℃, the water inflow rate of 20-30mL/min, the aeration rate of 0.5-5L/min, the dissolved oxygen of 7-12mg/L and the culture time of 7-10 d. The ratio of C, N and P in the culture solution was about 150:5: 1. The ultraviolet light source 420 is powered by solar energy, and the power of the lamp tube is 200 and 400W; the PLC control system 600 monitors data of the organic matter detector 470, opens the electromagnetic valve 480 when the measured value is lower than a set value, closes the electromagnetic valve 480 after the wastewater in the reactor is discharged, and opens the electromagnetic valve 300 and the water pump 310.
Embodiment 1, a system for synchronously treating refractory antibiotic organic wastewater by biological coupling photocatalysis, organic wastewater turbidity is 200NTU, the concentration is 25mg/L, the turbidity is reduced to 2NTU by a sand filter device, and under the conditions that the illumination time of an ultraviolet lamp is 10h, the temperature is 25 ℃, and the micropore aeration is 3L/min, the organic matter degradation removal rate reaches 98%.
Embodiment 2, a system for synchronous processing of hardly degradable phenol organic wastewater by biological coupling photocatalysis, organic wastewater turbidity is 100NTU, concentration is 50mg/L, turbidity is reduced to 1NTU by a sand filter device, and under the conditions that ultraviolet lamp illumination time is 14h, temperature is 15 ℃, and micropore aeration is 6L/min, organic matter degradation removal rate reaches 99%.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and any skilled person familiar with the art will not depart from the technical scope of the present invention, and the technical spirit of the present invention will be any simple modification, equivalent replacement, and improvement made by the above embodiments, and the like, all still belong to the technical scope of the present invention.
Claims (9)
1. The utility model provides a system for difficult degradation organic waste water of biological coupling photocatalysis synchronous processing which characterized in that: comprises a sand filter device and a biological coupling photocatalysis device which are sequentially communicated along the flowing direction of the wastewater;
the biological coupling photocatalysis device comprises a reactor, an ultraviolet light source, a hollow quartz tube shield, a micropore aeration device, a biomembrane photocatalysis carrier and a support; a micropore aeration device is arranged at the bottom of the reactor, a bracket is arranged above the micropore aeration device, the lower end of a biological membrane photocatalysis carrier is fixed on the bracket, a hollow quartz tube shield is fixed in the middle of the reactor, and an ultraviolet light source is arranged in the shield;
the sand filter device comprises a filter material and a filter cloth, and the filter cloth prevents loss of the filter material.
2. The system for synchronously treating refractory organic wastewater by biological coupling photocatalysis according to claim 1, characterized in that: still include fountain water installations, fountain water installations and sand filtration device link to each other, and the waste water pipeline gets into fountain water installations behind the sand filtration device, and fountain water installations's shower head is located in biological coupling photocatalysis device's the reactor.
3. The system for synchronously treating refractory organic wastewater by biological coupling photocatalysis according to claim 1, characterized in that: an organic matter monitor is arranged at the outlet of the biological coupling photocatalytic device and is connected with a PLC control system; the organic matter monitor is used for detecting the content of organic matters in water at the outlet of the biological coupling photocatalysis device; the PLC control system is used for monitoring data of the organic matter monitor and controlling the switches of the water inlet electromagnetic valve, the water pump and the water outlet electromagnetic valve of the biological coupling photocatalysis device.
4. The system for synchronously treating refractory organic wastewater by biological coupling photocatalysis according to claim 1, characterized in that: the solar energy power generation system comprises a solar cell module and a storage battery, and is connected with the ultraviolet light source to provide electric energy for the light source.
5. The system for synchronously treating refractory organic wastewater by biological coupling photocatalysis according to claim 1, characterized in that: the filtering material at the lower part in the sand filtering device is garnet filtering material with the diameter of 2-3mm, and the filtering material at the upper part is quartz sand filtering material with the diameter of 0.5-1.5 mm.
6. The system for synchronously treating refractory organic wastewater by biological coupling photocatalysis according to claim 1, characterized in that: the sand filtration effluent is sprayed into the biological coupling photocatalysis device, and the spray header is 20-30cm lower than the upper edge of the reactor.
7. The system for synchronously treating refractory organic wastewater by biological coupling photocatalysis according to claim 1, characterized in that: the reactor is cylindrical, the diameter is 0.7-1.0m, and the height of the reactor is 1.5-2.0 m.
8. The system for synchronously treating refractory organic wastewater by biological coupling photocatalysis according to claim 1, characterized in that: the lower end of the biomembrane photocatalytic carrier is fixed on a support, the diameter of the support is 0.5-0.8m, the number of the carriers is 15-25, and the length is 0.8-1.0 m; the biomembrane photocatalytic carrier is polyurethane sponge or foam formed by connecting fiber materials in series, the polyurethane sponge or foam is of a cubic structure, and the side length of each side is 3-5 cm.
9. The system for synchronously treating refractory organic wastewater by biological coupling photocatalysis according to claim 1, characterized in that: the ultraviolet light source is powered by solar energy, and the power of the lamp tube is 200-400W.
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| CN201920327271.6U CN209815909U (en) | 2019-03-15 | 2019-03-15 | System for biologically coupling photocatalysis synchronous processing is difficult for degrading organic waste water |
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| CN201920327271.6U CN209815909U (en) | 2019-03-15 | 2019-03-15 | System for biologically coupling photocatalysis synchronous processing is difficult for degrading organic waste water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109748468A (en) * | 2019-03-15 | 2019-05-14 | 生态环境部南京环境科学研究所 | A kind of system and method for biological coupling photocatalysis synchronization process organic wastewater with difficult degradation thereby |
| CN117069198A (en) * | 2023-09-04 | 2023-11-17 | 玉溪师范学院 | Module photocatalysis biomembrane sewage treatment plant |
-
2019
- 2019-03-15 CN CN201920327271.6U patent/CN209815909U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109748468A (en) * | 2019-03-15 | 2019-05-14 | 生态环境部南京环境科学研究所 | A kind of system and method for biological coupling photocatalysis synchronization process organic wastewater with difficult degradation thereby |
| CN117069198A (en) * | 2023-09-04 | 2023-11-17 | 玉溪师范学院 | Module photocatalysis biomembrane sewage treatment plant |
| CN117069198B (en) * | 2023-09-04 | 2024-07-05 | 玉溪师范学院 | Module photocatalysis biomembrane sewage treatment plant |
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