Tea space purification method based on purple sand-moss symbiosis

Abstract

The invention discloses a tea space purification method based on purple sand-moss symbiosis. According to the invention, through the synergistic effect of physical adsorption, photocatalytic decomposition and biodegradation, a multi-dimensional pollutant treatment system is constructed. A multi-stage adsorption network is formed by the double-pore structure of the purple sand and the moss microporous blades; the TiO2 coating excited by the UV light source can decompose formaldehyde into harmless carbon dioxide and water, iron-rich minerals in the purple sand further improve the catalytic activity, the capillary pore structure of the purple sand and the water storage layer at the bottom automatically adjust the humidity through the siphonic effect, and the humidity of the tea bin can be stabilized within an ideal interval of about 65% in cooperation with the transpiration effect of moss. The tea leaves are inhibited from mildewing, and the influence of too high or too low humidity on the quality of tea products is avoided; the selected low-light-resistant pennisetum brachyides can keep a high survival rate in a common low-light environment in a tea space, so that the photocatalytic requirement is met, and the moss activity is prevented from being damaged.

Description

Technical Field

[0001] The invention belongs to the technical field of tea space purification, and specifically relates to a tea space purification method based on purple sand-moss symbiosis. Background Art

[0002] Tea space purification is a method that combines the creation of a tea culture atmosphere with environmental optimization to purify and enhance the physical space at both the sensory and spiritual levels. It not only includes the regulation of physical conditions such as air, light, and sound in the tea room environment, such as the use of air purification equipment, natural lighting design, and sound insulation, but also emphasizes the integration of traditional cultural elements such as tea art, incense, flower arrangement, calligraphy and painting to create a tranquil, elegant, and refreshing spatial atmosphere, allowing people to achieve physical and mental relaxation and spiritual purification during the tea tasting process. Tea space purification combines Eastern aesthetics with modern design concepts, focusing on the sense of layering, rhythm, and humanistic care of space. It aims to create a quiet place that combines functionality and artistry. It is suitable for a variety of scenarios such as teahouses, clubs, office spaces, and meditation venues. It is an important embodiment of modern urbanites' pursuit of healthy living and spiritual dwelling.

[0003] However, existing technologies have three shortcomings in the field of tea space purification: first, traditional purification methods mostly rely on a single mechanism and lack the synergy of multiple links, resulting in incomplete pollutant treatment and obvious performance degradation after long-term use; second, most purification equipment is not designed for the special environment of low light and stable humidity in the tea space. The light source intensity or operating mode can easily damage biological materials, and humidity control is difficult to accurately match the needs of the tea warehouse; third, existing solutions generally have a single function, focusing only on purification effects, and fail to integrate the cultural and aesthetic needs of the tea space. In addition, maintenance operations are complicated and lack ease of use. Summary of the Invention

[0004] The purpose of the present invention is to provide a tea space purification method based on purple sand-moss symbiosis in order to solve the above-mentioned problems.

[0005] The technical solution adopted by the present invention is as follows: a tea space purification method based on purple sand-moss symbiosis, the method comprising the following steps:

[0006] S1: Select purple clay raw materials and low-light-resistant feather-branch moss that meet the needs of the tea space. The purple clay raw materials need to be pre-processed to form a double pore structure with a porosity of 30% to 40%. The moss needs to be adaptively cultivated to enhance the activity of rhizosphere microorganisms, laying the material foundation for subsequent multi-stage purification.

[0007] S2: Customize a purple clay box with a wall thickness of 5 to 6 mm according to the size of the tea space. Add cordierite to the raw materials to enhance thermal shock resistance. Simultaneously, emboss tea patterns on the surface of the box, taking into account both purification function and exhibition aesthetics.

[0008] S3: Embed a UV light source with a wavelength of 365nm and a power of ≤3W on the top of the box. Set the irradiation program for 4 hours a day through the timer. The position of the light source must be aligned with the thermal shock resistant area of ​​the purple clay box to avoid structural damage caused by local high temperature and provide stable excitation conditions for the photocatalytic decomposition of formaldehyde.

[0009] S4: Lay a composite matrix of volcanic rock and vermiculite at the bottom of the box to form an aquifer. The thickness of the matrix needs to match the capillary height of the purple sand. The capacity of the aquifer is designed to meet the need of no watering for 90 days, providing a continuous water source for the transpiration of the moss.

[0010] S5: Spread the pre-treated feather-branched moss evenly on the surface of the purple clay box, fix it with a micro-grid to prevent it from falling off, ensure that the moss leaves are in close contact with the stomata of the purple clay, and adjust the moss density to balance the transpiration rate and purification efficiency.

[0011] S6: Through the physical contact between the double pores of purple clay and the microporous leaves of moss, pollutants such as PM2.5 and formaldehyde are automatically adsorbed in the tea space environment. The adsorption efficiency increases with the increase of humidity. The humidity needs to be monitored simultaneously to maintain the optimal adsorption state.

[0012] S7: When the UV light source is turned on, the TiO2 coating on the surface of the purple clay decomposes formaldehyde into CO2 and H2O under the excitation of the 365nm band. At the same time, the iron-rich minerals in the purple clay act as electron acceptors to inhibit the recombination of photogenerated electrons and holes, thereby increasing the catalytic activity by 40%. During this process, it is necessary to ensure that there is no obstruction between the UV light source and the moss area.

[0013] S8: Moss rhizosphere microorganisms secrete formaldehyde dehydrogenase, which converts the adsorbed formaldehyde into formic acid and further mineralizes it. This process depends on the survival status of the moss and the activity of the microorganisms, forming an "adsorption-catalysis-degradation" closed loop.

[0014] S9: Regularly check the water level in the aquifer, the operating status of the UV light source and the moss survival rate, monitor the humidity in the tea warehouse through temperature and humidity sensors, and simultaneously record the PM2.5 adsorption rate to ensure long-term purification effects and environmental safety of the tea space.

[0015] In a preferred embodiment, in step S1, the raw material must meet the process requirement of a sintering temperature of 1100-1170°C. Pretreatment processes such as molding and drying form a dual-pore structure with a porosity of 30%-40% to ensure its physical adsorption properties. The moss selected is a low-light-tolerant species, Moss sphenanthera, with a survival rate of over 90% at 200 lux, suitable for the low-light environment of teahouses. During the pretreatment phase, the moss is adaptively cultured, and by manipulating the culture medium composition and light conditions, the activity of its rhizosphere microorganisms (including Methylobacterium) is enhanced, laying the foundation for subsequent formaldehyde biodegradation.

[0016] In a preferred embodiment, in step S2, the box wall thickness is controlled to 5-6 mm, and cordierite is added to the raw materials to enhance thermal shock resistance, ensuring that it does not crack or deform under the subsequent high-temperature environment of the UV light source. The box surface is embossed with tea patterns (such as "entwined lotus") to increase the surface roughness to enhance moss adhesion and meet the aesthetic requirements of tea space display through traditional tea pattern design.

[0017] In a preferred embodiment, in step S3, an LED light source with a wavelength of 365 nm and a power of ≤3 W is selected and fixed to the top of the box via an embedded installation. The light source is aligned with the cordierite's enhanced thermal shock resistance zone to prevent localized high temperatures from damaging the box structure. A timer is set for a daily 4-hour irradiation schedule to ensure that the TiO2 coating continuously exerts its photocatalytic activity under UV-A excitation, while preventing long-term irradiation from negatively impacting moss activity.

[0018] In a preferred embodiment, in step S4, the water storage layer at the bottom of the box is filled with a composite matrix of volcanic rock and vermiculite. The matrix thickness must precisely match the pore height of the purple sand to ensure effective water transfer through the siphon effect. The matrix capacity is designed to meet the requirement of 90 days without watering. The porous structure of the volcanic rock stores water, while the water retention of the vermiculite slows the evaporation rate. The two work together to provide a continuous water source for moss transpiration, maintaining a stable humidity in the tea room.

[0019] In a preferred embodiment, in step S5, the pre-treated feather moss is evenly spread on the surface of the purple sand box. When spreading, it is necessary to ensure that the moss leaves are in close contact with the double pores of the purple sand to form the basic structure of the physical adsorption network. The moss is fixed to the surface of the box using a micro-grid fixation method to prevent it from falling off due to water flow or external force collision. The density of the moss laying should be controlled at a photosynthetic efficiency of 0.8 μmol / m 2 / s, the density is adjusted to balance the transpiration rate (affecting humidity regulation) and purification efficiency (affecting formaldehyde degradation).

[0020] In a preferred embodiment, in step S6, when PM2.5, formaldehyde and other pollutants in the tea space environment contact the surface of the box, the double pores of purple sand (porosity 30% to 40%) and the microporous leaves of moss (specific surface area 300m 2 / g) automatically forms a multi-stage adsorption network. Adsorption efficiency is closely related to ambient humidity. When the humidity is between 60% and 70%, the surface activity of the pores of the purple sand and the moss leaves is highest, and adsorption capacity reaches its optimal state. A humidity sensor is required to monitor the ambient humidity in real time. If necessary, water is added to the aquifer or ventilation is adjusted to maintain humidity stability.

[0021] In a preferred embodiment, in step S7, within four hours of the daily UV light source activation, the TiO2 coating on the purple sand surface, under 365nm excitation, decomposes adsorbed formaldehyde (HCHO) into CO2 and H2O, achieving a degradation efficiency of up to 92%. Simultaneously, the iron-rich minerals (such as hematite) contained in the purple sand act as electron acceptors, effectively inhibiting photogenerated electron-hole recombination and increasing photocatalytic activity by 40%. To ensure efficient photocatalytic activity, the UV light source and the moss-covered area must be clear, preventing leaves or dust from blocking the light from reaching the TiO2 coating.

[0022] In a preferred embodiment, in step S8, the moss rhizosphere microorganisms (including Methylobacterium) continuously secrete formaldehyde dehydrogenase while alive, converting adsorbed formaldehyde into formic acid, which is then mineralized into carbon dioxide and water. This process depends on the moss's survival and microbial activity: moss survival requires an aquifer to maintain an ambient humidity of 60% to 70%, while microbial activity is enhanced by weak UV light exposure (4 hours of daily exposure promotes enzyme secretion). The three steps of adsorption, catalysis, and degradation form a closed loop, collectively improving formaldehyde purification efficiency.

[0023] In a preferred embodiment, in step S9, a full-cycle maintenance mechanism is established to ensure long-term purification effects. The water level in the aquifer is regularly checked, and when it falls below one-third of its total capacity, it is replenished promptly. The operating status of the UV light source is monitored to ensure that its activity decay does not exceed 5% after 1,000 hours of continuous irradiation. If the decay exceeds the standard, the light source must be replaced. The moss survival rate is observed, and when the survival rate is below 90%, the pre-treated moss must be replanted. Simultaneously, the humidity in the tea storage room is monitored in real time using a temperature and humidity sensor, which must be stable within a range of 65% plus or minus 5%. The PM2.5 adsorption rate is also recorded (it must remain above 92% for 30 consecutive days). If abnormal data is detected, problems such as material aging or decreased microbial activity are promptly investigated.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] 1. In this invention, a multi-dimensional pollutant treatment system is constructed through the synergistic effects of physical adsorption, photocatalytic decomposition, and biodegradation. The dual stomata structure of purple clay and the microporous leaves of moss form a multi-level adsorption network that can efficiently capture pollutants such as PM2.5 and formaldehyde. The TiO2 coating excited by UV light can decompose formaldehyde into harmless carbon dioxide and water, while the iron-rich minerals in the purple clay further enhance catalytic activity. At the same time, enzymes secreted by moss rhizosphere microorganisms can completely mineralize the adsorbed formaldehyde. This closed-loop design of "adsorption-catalysis-degradation" ensures the full process of pollutant treatment from capture to conversion, significantly improving the thoroughness and sustainability of purification.

[0026] 2. In this invention, the capillary structure of purple clay and the bottom water storage layer automatically adjust the humidity through the siphon effect. Combined with the transpiration of moss, the humidity in the tea warehouse can be stabilized in the ideal range of about 65%, which not only inhibits tea mold but also avoids the impact of excessive or low humidity on tea quality. On the other hand, the selected low-light-resistant feather-branch moss can maintain a high survival rate in the low-light environment commonly found in tea spaces. The low-power (≤3W) and timed irradiation (4 hours per day) design of the UV light source not only meet the photocatalytic requirements but also avoid damage to the moss activity. This precise adaptation to the lighting, temperature, humidity and other conditions of the tea space ensures the stable operation of the method in actual scenarios.

[0027] 3. The tea-patterned relief and living moss sculptures on the surface of the purple clay box add a visual aesthetic that blends nature with traditional craftsmanship, embodying the "elegant" cultural positioning of tea spaces. The 90-day watering-free design and the need for long-term maintenance, which requires only periodic inspections, reduce operational costs and complexity, making the method easier to promote and apply. This multifaceted combination of functionality, aesthetics, and convenience makes it not just a purification technology, but also a comprehensive solution for enhancing the overall quality of tea spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the purification principle of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] Example:

[0031] Reference Figure 1 A tea space purification method based on purple sand-moss symbiosis, the method comprising the following steps:

[0032] S1: Select purple clay raw materials and low-light-resistant feather-branch moss that meet the needs of the tea space. The purple clay raw materials need to be pre-processed to form a double pore structure with a porosity of 30% to 40%. The moss needs to be adaptively cultivated to enhance the activity of rhizosphere microorganisms, laying the material foundation for subsequent multi-stage purification.

[0033] S2: Customize a purple clay box with a wall thickness of 5 to 6 mm according to the size of the tea space. Add cordierite to the raw materials to enhance thermal shock resistance. Simultaneously, emboss tea patterns on the surface of the box, taking into account both purification function and exhibition aesthetics.

[0034] S3: Embed a UV light source with a wavelength of 365nm and a power of ≤3W on the top of the box. Set the irradiation program for 4 hours a day through the timer. The position of the light source must be aligned with the thermal shock resistant area of ​​the purple clay box to avoid structural damage caused by local high temperature and provide stable excitation conditions for the photocatalytic decomposition of formaldehyde.

[0035] S4: Lay a composite matrix of volcanic rock and vermiculite at the bottom of the box to form an aquifer. The thickness of the matrix needs to match the capillary height of the purple sand. The capacity of the aquifer is designed to meet the need of no watering for 90 days, providing a continuous water source for the transpiration of the moss.

[0036] S5: Spread the pre-treated feather-branched moss evenly on the surface of the purple clay box, fix it with a micro-grid to prevent it from falling off, ensure that the moss leaves are in close contact with the stomata of the purple clay, and adjust the moss density to balance the transpiration rate and purification efficiency.

[0037] S6: Through the physical contact between the double pores of purple clay and the microporous leaves of moss, pollutants such as PM2.5 and formaldehyde are automatically adsorbed in the tea space environment. The adsorption efficiency increases with the increase of humidity. The humidity needs to be monitored simultaneously to maintain the optimal adsorption state.

[0038] S7: When the UV light source is turned on, the TiO2 coating on the surface of the purple clay decomposes formaldehyde into CO2 and H2O under the excitation of the 365nm band. At the same time, the iron-rich minerals in the purple clay act as electron acceptors to inhibit the recombination of photogenerated electrons and holes, thereby increasing the catalytic activity by 40%. During this process, it is necessary to ensure that there is no obstruction between the UV light source and the moss area.

[0039] S8: Moss rhizosphere microorganisms secrete formaldehyde dehydrogenase, which converts the adsorbed formaldehyde into formic acid and further mineralizes it. This process depends on the survival status of the moss and the activity of the microorganisms, forming an "adsorption-catalysis-degradation" closed loop.

[0040] S9: Regularly check the water level in the aquifer, the operating status of the UV light source and the moss survival rate, monitor the humidity in the tea warehouse through temperature and humidity sensors, and simultaneously record the PM2.5 adsorption rate to ensure long-term purification effects and environmental safety of the tea space.

[0041] In step S1, the raw material must meet the sintering temperature requirement of 1100-1170°C. Pre-treatment processes such as molding and drying create a dual-pore structure with a porosity of 30% to 40% to ensure its physical adsorption properties. The moss selected is the low-light-tolerant genus Trichoderma, which must have a survival rate of over 90% at 200 lux, making it suitable for the low-light environment of teahouses. During the pre-treatment phase, the moss is adaptively cultured. By manipulating the culture medium composition and light conditions, the activity of its rhizosphere microorganisms (including Methylobacterium) is enhanced, laying the foundation for subsequent formaldehyde biodegradation.

[0042] In step S2, the box wall thickness is controlled at 5-6mm. Cordierite is added to the raw materials to enhance thermal shock resistance and prevent cracking or deformation under the subsequent high-temperature environment of the UV light source. The box surface is embossed with tea patterns (such as "entwined lotus") to increase the surface roughness to enhance moss adhesion and meet the aesthetic requirements of tea space display through traditional tea pattern design.

[0043] In step S3, an LED light source with a wavelength of 365nm and a power of ≤3W is selected and fixed to the top of the box via a flush-mount installation. The light source is aligned with the cordierite's enhanced thermal shock resistance zone to prevent localized high temperatures from damaging the box structure. A timer is set for a daily 4-hour exposure schedule to ensure that the TiO2 coating continuously exerts its photocatalytic activity under UV-A excitation while preventing long-term exposure from negatively impacting moss activity.

[0044] In step S4, the water reservoir at the bottom of the box is filled with a composite matrix of volcanic rock and vermiculite. The matrix thickness must precisely match the pore height of the purple sand to ensure effective water transfer through the siphon effect. The matrix capacity is designed to meet the requirement of 90 days without watering. The porous structure of the volcanic rock stores water, while the water-retention properties of the vermiculite slow evaporation. The two work together to provide a continuous water source for moss transpiration, maintaining a stable humidity in the tea room.

[0045] In step S5, the pre-treated feather-branch moss needs to be evenly laid on the surface of the purple sand box. When laying, it is necessary to ensure that the moss leaves are in close contact with the double stomata of the purple sand to form the basic structure of the physical adsorption network. The moss is fixed to the surface of the box using a micro-grid fixing method to prevent it from falling off due to water flow or external force collision. The moss laying density needs to be controlled at a photosynthetic efficiency of 0.8μmol / m 2 / s, the density is adjusted to balance the transpiration rate (affecting humidity regulation) and purification efficiency (affecting formaldehyde degradation).

[0046] In step S6, when PM2.5, formaldehyde and other pollutants in the tea space environment contact the surface of the box, the double pores of purple sand (porosity 30% to 40%) and the microporous leaves of moss (specific surface area 300m 2 / g) automatically forms a multi-stage adsorption network. Adsorption efficiency is closely related to ambient humidity. When the humidity is between 60% and 70%, the surface activity of the pores of the purple sand and the moss leaves is highest, and adsorption capacity reaches its optimal state. A humidity sensor is required to monitor the ambient humidity in real time. If necessary, water is added to the aquifer or ventilation is adjusted to maintain humidity stability.

[0047] In step S7, within four hours of the UV light source being activated each day, the TiO2 coating on the purple sand surface, under the 365nm wavelength, decomposes adsorbed formaldehyde (HCHO) into CO2 and H2O, achieving a degradation efficiency of 92%. Simultaneously, the iron-rich minerals (such as hematite) contained in the purple sand act as electron acceptors, effectively inhibiting photogenerated electron-hole recombination and increasing photocatalytic activity by 40%. To ensure efficient photocatalytic activity, the UV light source and the moss-covered area must be kept clear of obstructions, preventing leaves or dust from blocking the light from reaching the TiO2 coating.

[0048] In step S8, the moss rhizosphere microorganisms (including Methylobacterium) continuously secrete formaldehyde dehydrogenase while still alive, converting the adsorbed formaldehyde into formic acid, which is then mineralized into carbon dioxide and water. This process depends on the moss's survival and microbial activity: moss survival requires an aquifer to maintain an ambient humidity of 60% to 70%, while microbial activity is enhanced by weak UV light (4 hours of daily exposure promotes enzyme secretion). The three steps of adsorption, catalysis, and degradation form a closed loop, collectively improving formaldehyde purification efficiency.

[0049] In step S9, a full-cycle maintenance mechanism must be established to ensure long-term purification effects. Regularly check the water volume in the aquifer and replenish it promptly when it is less than one-third of the total capacity. Monitor the operating status of the UV light source to ensure that its activity decay does not exceed 5% after 1,000 hours of continuous irradiation. If the decay exceeds the standard, the light source must be replaced. Observe the moss survival rate. When the survival rate is less than 90%, re-transplant the pre-treated moss. At the same time, monitor the humidity in the tea warehouse in real time through temperature and humidity sensors. It must be stable within a range of 65% plus or minus 5%, and record the PM2.5 adsorption rate (it must be maintained above 92% for 30 consecutive days). If abnormal data is found, promptly investigate problems such as material aging or decreased microbial activity.

[0050] From the above we can know:

[0051] In this invention, a multi-dimensional pollutant treatment system is constructed through the synergistic effects of physical adsorption, photocatalytic decomposition, and biodegradation. The dual stomata structure of purple clay and the microporous leaves of moss form a multi-level adsorption network that can efficiently capture pollutants such as PM2.5 and formaldehyde. The TiO2 coating excited by UV light can decompose formaldehyde into harmless carbon dioxide and water, while the iron-rich minerals in purple clay further enhance catalytic activity. At the same time, enzymes secreted by moss rhizosphere microorganisms can thoroughly mineralize the adsorbed formaldehyde. This closed-loop design of "adsorption-catalysis-degradation" ensures the full-process treatment of pollutants from capture to conversion, significantly improving the thoroughness and sustainability of purification.

[0052] In this method, the capillary structure of purple clay and the water storage layer at the bottom automatically regulate humidity through a siphon effect. Combined with the transpiration of moss, this method can stabilize the humidity in the tea warehouse at an ideal range of around 65%, inhibiting tea mold and preventing the impact of excessive or low humidity on tea quality. Furthermore, the selected low-light-resistant feather-branch moss can maintain a high survival rate in the low-light environments commonly found in tea spaces. The low-power (≤3W) and timed irradiation (4 hours per day) UV light source design not only meets photocatalytic requirements but also avoids damage to moss activity. This precise adaptation to tea space conditions such as lighting, temperature, and humidity ensures the method's stable operation in real-world scenarios.

[0053] The tea-patterned relief and living moss sculptures on the purple clay box's surface add a visual aesthetic that blends nature with traditional craftsmanship, embodying the "elegant" cultural identity of tea spaces. The 90-day watering-free design and the need for long-term maintenance, requiring only periodic inspections, reduce operational costs and complexity, making the method easier to implement. This multifaceted combination of functionality, aesthetics, and convenience makes it not just a purification technology, but a comprehensive solution for enhancing the overall quality of tea spaces.

[0054] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A tea space purification method based on purple sand-moss symbiosis, characterized by: The method comprises the following steps: S1: Select purple clay materials and low-light-tolerant feather-branch moss that meet the needs of the tea space. The purple clay materials need to be pre-processed to form a double-stomatal structure with a porosity of 30% to 40%. The moss needs to be adaptively cultivated to enhance the activity of rhizosphere microorganisms, laying the material foundation for subsequent multi-stage purification. S2: Customize a purple sand box with a wall thickness of 5-6mm according to the size of the tea room. Add cordierite to the raw materials to enhance thermal shock resistance. Simultaneously, emboss tea patterns on the surface of the box to balance the purification function and the aesthetic requirements of the exhibition. S3: A UV light source with a wavelength of 365nm and a power of ≤3W is embedded in the top of the box. A 4-hour irradiation program is set daily through a timer. The position of the light source must be aligned with the thermal shock-resistant area of ​​the purple clay box to avoid structural damage caused by local high temperature and provide stable excitation conditions for the photocatalytic decomposition of formaldehyde. S4: Lay a composite matrix of volcanic rock and vermiculite at the bottom of the box to form an aquifer. The thickness of the matrix must match the pore height of the purple sand. The aquifer capacity is designed to meet the requirement of no watering for 90 days, providing a continuous water source for moss transpiration. S5: evenly spread the pre-treated feather-branch moss on the surface of the purple sand box, fix it with a micro-grid to prevent it from falling off, ensure that the moss leaves are in close contact with the stomata of the purple sand, and adjust the moss density to balance the transpiration rate and purification efficiency; S6: Through the physical contact between the double pores of purple sand and the microporous leaves of moss, PM2.5 and formaldehyde pollutants are automatically adsorbed in the tea space environment. The adsorption efficiency increases with the increase of humidity. The humidity needs to be monitored simultaneously to maintain the optimal adsorption state. S7: When the UV light source is turned on, the TiO2 coating on the surface of the purple sand decomposes formaldehyde into CO2 and H2O under the excitation of the 365nm band. At the same time, the iron-rich minerals in the purple sand act as electron acceptors to inhibit the recombination of photogenerated electrons and holes, increasing the catalytic activity by 40%. During this process, it is necessary to ensure that there is no obstruction between the UV light source and the moss area; S8: Moss rhizosphere microorganisms secrete formaldehyde dehydrogenase, which converts adsorbed formaldehyde into formic acid and further mineralizes it. This process depends on the survival state of the moss and the activity of the microorganisms, forming an "adsorption-catalysis-degradation" closed loop; S9: Regularly check the water level in the aquifer, the operating status of the UV light source and the moss survival rate, monitor the humidity in the tea warehouse through temperature and humidity sensors, and simultaneously record the PM2.5 adsorption rate to ensure long-term purification effects and environmental safety of the tea space.

2. The tea space purification method based on purple sand and moss symbiosis according to claim 1, characterized in that: In step S1, the purple clay raw material must meet the process requirement of a sintering temperature of 1100-1170° C., and a double pore structure with a porosity of 30% to 40% is formed through a molding and drying pretreatment process to ensure its physical adsorption performance.

3. The tea space purification method based on purple sand and moss symbiosis according to claim 1, characterized in that: In step S2, the wall thickness of the box body is controlled to be 5-6 mm, and cordierite is added to the raw materials to enhance thermal shock resistance and ensure that no cracking or deformation occurs in the subsequent local high temperature environment of the UV light source.

4. The tea space purification method based on purple sand and moss symbiosis according to claim 1, characterized in that: In step S3, an LED light source with a wavelength of 365 nm and a power of ≤3 W is selected and fixed to the top of the box body through embedded installation. The position of the light source must be aligned with the cordierite-reinforced thermal shock resistance area to avoid local high temperature damage to the box body structure; the light source is set to a 4-hour irradiation program per day through a timer.

5. The tea space purification method based on purple sand and moss symbiosis according to claim 1, characterized in that: In step S4, the water storage layer at the bottom of the box body is filled with a composite matrix of volcanic rock and vermiculite, and the thickness of the matrix needs to be precisely matched with the pore height of the purple sand to ensure that the siphon effect effectively conducts water.

6. The tea space purification method based on purple sand and moss symbiosis according to claim 1, characterized in that: In step S5, the pretreated feather-branched moss needs to be evenly laid on the surface of the purple clay box body. When laying, it is necessary to ensure that the moss leaves are in close contact with the double stomata of the purple clay to form the basic structure of the physical adsorption network; the moss is fixed to the surface of the box body using a micro-grid fixing method.

7. The tea space purification method based on purple sand and moss symbiosis according to claim 1, characterized in that: In step S6, when PM2.5 and formaldehyde pollutants in the tea space environment contact the surface of the box, the double pores of the purple clay and the microporous leaves of the moss automatically form a multi-level adsorption network.

8. The tea space purification method based on purple sand and moss symbiosis according to claim 1, characterized in that: In step S7, within 4 hours of starting the UV light source each day, the TiO2 coating on the surface of the purple sand is excited by the 365nm band and decomposes the adsorbed formaldehyde into CO2 and H2O.

9. The tea space purification method based on purple sand and moss symbiosis according to claim 1, characterized in that: In step S8, the moss rhizosphere microorganisms continuously secrete formaldehyde dehydrogenase while in a living state, converting the adsorbed formaldehyde into formic acid, which is further mineralized into carbon dioxide and water.

10. The tea space purification method based on purple sand and moss symbiosis according to claim 1, characterized in that: In step S9, in order to ensure long-term purification effect, a full-cycle maintenance mechanism needs to be established; the water volume of the aquifer is checked regularly, and when the water volume is less than one-third of the total capacity, it is replenished in time; the operating status of the UV light source is monitored to ensure that its activity decay does not exceed 5% after 1000 hours of continuous irradiation. If the decay exceeds the standard, the light source needs to be replaced; the moss survival rate is observed, and when the survival rate is lower than 90%, the pre-treated moss needs to be re-transplanted; at the same time, the humidity of the tea warehouse is monitored in real time through the temperature and humidity sensor, which needs to be stable within the range of 65% plus or minus 5%, and the PM2.5 adsorption rate is recorded. If abnormal data occurs, the material aging or the decline in microbial activity is checked in time.

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