Microplastic removal media using silicone composite

Abstract

A filter for removing microplastics from water includes a plurality of fibers made from a silicone composite material. The composite material is formed from a mixture of polydimethylsiloxane, silicon dioxide, hydroxy -terminated silicone fluid, and optionally activated carbon. The fibers are configured to capture microplastic particles from water through a combination of physical interactions including entanglement, absorption, electrostatic forces, and hydrophobic interactions. The filter can be structured into a brush-like form mimicking plant roots for direct submersion in water bodies or configured as loose fibers within a filter cartridge for systems where water flows through the cartridge.

Description

POLYGONE-003-PCTMICROPLASTIC REMOVAL MEDIA USING SILICONE COMPOSITECROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present application claims priority to U.S. Provisional Patent Application No.63 / 790,506, filed April 17, 2025 and titled “Microplastic Removal Media Using Silicone Composite'’, the contents of which are incorporated by reference herein in its entirety.FIELD OF INVENTION

[0002] The present disclosure relates to water filtration systems, and more particularly to a filter designed for removing microplastics from water using a silicone composite material structured into various forms.BACKGROUND

[0003] Microplastics have become an increasing concern in aquatic environments worldwide. These small plastic particles, typically less than 5 millimeters in size, originate from various sources including the breakdown of larger plastic debris, industrial processes, and consumer products. As microplastics accumulate in water bodies, they pose potential risks to aquatic ecosystems and human health.

[0004] Traditional water filtration methods often struggle to effectively remove microplastics due to their small size and diverse shapes. Conventional filters may allow these particles to pass through, while more advanced techniques can be costly or energy-intensive to implement on a large scale. Additionally, some filtration materials may introduce secondary pollutants or require frequent replacement, limiting their practical application in diverse aquatic environments.

[0005] There is growing interest in developing innovative filtration technologies that can efficiently capture microplastics from water without negatively impacting water quality7or requiring extensive infrastructure changes. Ideally, such solutions would be adaptable to various water conditions, from flowing rivers to static reservoirs, and capable of withstanding prolonged exposure without degrading or releasing harmful substances.

[0006] Advancements in material science offer new possibilities for creating specialized filtration media. Composite materials combining different properties could potentially enhance microplastic capture while remaining stable in aquatic environments. However, challenges remain in designing filters that balance effective particle removal with practical considerations such as durability, ease of maintenance, and environmental compatibility.POLYGONE-OQ3-PCT

[0007] As research continues to reveal the widespread presence of microplastics in water resources, there is an ongoing need for improved methods to address this pervasive form of pollution. Developing efficient, sustainable, and scalable solutions for microplastic removal represents an area of active investigation in environmental technology and water treatment fields.SUMMARY

[0008] This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

[0009] According to an aspect of the present disclosure, a filter for removing microplastics from water is provided. The filter includes a plurality' of fibers, each of the plurality7of fibers made from a silicone composite material. The fibers are configured to capture microplastic particles from water. Each fiber is composed of a silicone composite material formed from a mixture of polydimethylsiloxane, silicon dioxide, hydroxy -terminated silicone fluid, and optionally activated carbon. This combination of materials provides a filter with both hydrophobic properties and adsorptive capacity7, enabling effective capture of microplastic particles through multiple interaction mechanisms.

[0010] According to another aspect of the present disclosure, the silicone composite material may comprise 50%-80% by weight polydimethylsiloxane, 10%-40% by weight silicon dioxide, l%-6% by weight hydroxy -terminated silicone fluid, and 0-30 grams of activated carbon per 1 kg of the silicone composite material. These specific compositional ranges provide a balance of flexibility, mechanical strength, and adsorption capacity for enhanced microplastic filtration performance.

[0011] According to another aspect of the present disclosure, the plurality of fibers may be structured into a brush-like form that mimics plant roots. This configuration creates a dense network with a large surface area for interaction with water and microplastic particles, facilitating efficient capture through physical entanglement.

[0012] According to another aspect of the present disclosure, the plurality of fibers may be configured as loose fibers within a filter cartridge. This arrangement allows for a high degree of interaction between water and the fibers, potentially increasing the efficiency of microplastic capture in controlled flow systems.POLYGONE-003-PCT

[0013] According to another aspect of the present disclosure, the fibers may be configured to capture microplastic particles through a combination of physical interactions including entanglement, absorption, electrostatic forces, and hydrophobic interactions. The synergistic combination of these capture mechanisms enables effective removal of microplastics across a wide range of particle sizes and compositions.

[0014] According to another aspect of the present disclosure, the brush-like form may be configured for direct submersion in water bodies. This configuration enables in-situ filtration of microplastics in natural water environments without requiring complex water treatment infrastructure.

[0015] According to another aspect of the present disclosure, the filter cartridge may be designed for systems where water flows through the cartridge. This design allows for integration into existing water treatment systems and provides controlled filtration conditions for consistent microplastic removal.

[0016] According to another aspect of the present disclosure, a method of manufacturing a filter for removing microplastics from water is provided. The method includes providing a silicone composite material optionally containing activated carbon in the form of a fiber, strand, ribbon, or striation. The method further includes forming a structured arrangement from the silicone composite material, wherein the structured arrangement is a brush-like form that mimics plant roots or loose fibers within a filter cartridge. This manufacturing approach enables the production of filters with tailored configurations suitable for diverse water treatment applications.

[0017] According to another aspect of the present disclosure, the silicone composite material may comprise 50%-80% by weight of poly dimethylsiloxane, 10%-40% by weight of silicon dioxide, l%-6% by weight of hydroxy -terminated silicone fluid, and optionally 0-30 g of activated carbon per 1 kg of the silicone composite material. These compositional parameters provide a reproducible formulation for manufacturing filters with consistent microplastic capture performance.

[0018] According to another aspect of the present disclosure, the structured arrangement may be a brush-like form that mimics plant roots. This form factor maximizes surface area while maintaining structural integrity for deployment in aquatic environments.

[0019] According to another aspect of the present disclosure, the structured arrangement may be loose fibers within a filter cartridge. This configuration provides flexibility in packing density and filter capacity for various flow-through applications.POLYGONE-003-PCT

[0020] According to another aspect of the present disclosure, the filter cartridge may be configured for direct submersion in water bodies. This enables versatile deployment options for the cartridge-based filter design.

[0021] According to another aspect of the present disclosure, the filter cartridge may be designed for systems where water flows through the cartridge. This design facilitates integration with existing water treatment infrastructure and enables controlled filtration processes.

[0022] According to another aspect of the present disclosure, the fibers may be configured to capture microplastic particles through a combination of physical interactions including entanglement, absorption, electrostatic forces, and hydrophobic interactions. These multiple capture mechanisms work together to enhance overall filtration effectiveness across diverse microplastic types.

[0023] According to another aspect of the present disclosure, a filtration system for removing microplastics from water is provided. The filtration system includes a filter element comprising fibers made from a silicone composite material, the composite material formed from a mixture of polydimethylsiloxane, silicon dioxide, hydroxy-terminated silicone fluid, and optionally activated carbon. The filtration system also includes a housing configured to hold the filter element, wherein the housing is adapted to allow water to flow through the filter element for microplastic removal. This integrated system design provides a complete solution for microplastic filtration with controlled water flow and filter element retention.

[0024] According to another aspect of the present disclosure, the silicone composite material may comprise 50%-80% by weight poly dimethylsiloxane, 10%-40% by weight silicon dioxide, l%-6% by weight hydroxy -terminated silicone fluid, and 0-30 grams of activated carbon per 1 kg of the silicone composite material. These specific material proportions ensure consistent filtration performance and material durability within the filtration system.

[0025] According to another aspect of the present disclosure, the fibers may be structured into a brush-like form that mimics plant roots. This structure provides enhanced surface area and entanglement capability within the filtration system housing.

[0026] According to another aspect of the present disclosure, the fibers may be configured as loose fibers within the filter element. This configuration allows for optimized packing and water flow characteristics within the housing.

[0027] According to another aspect of the present disclosure, the brush-like form may be configured for direct submersion in water bodies. This enables the filtration system to be deployed directly in natural water environments for in-situ microplastic removal.POLYGONE-003-PCT

[0028] According to another aspect of the present disclosure, the fibers may be configured to capture microplastic particles through a combination of physical interactions including entanglement, absorption, electrostatic forces, and hydrophobic interactions. The combination of these mechanisms within the filtration system provides comprehensive microplastic capture capability across varying particle sizes and water conditions.

[0029] The foregoing general description of the illustrative embodiments and the following detailed description thereof are merely exemplary aspects of the teachings of this disclosure and are not restrictive.BRIEF DESCRIPTION OF FIGURES

[0030] Non-limiting and non-exhaustive examples are described with reference to the following figures.

[0031] FIG. 1 illustrates a cylindrical brush-like structure with radiating bristles, according to aspects of the present disclosure.

[0032] FIG. 2 depicts a brush-like structure with spiral coils around a central shaft, according to an embodiment.

[0033] FIG. 3 shows an orthogonal view of a floatation platform in an aquatic environment.

[0034] FIG. 4 illustrates a section view of a portion of a filter assembly with attachments and a carabiner.

[0035] FIG. 5 depicts an orthogonal view of a portion of a filter assembly showing the arrangement of attachments and a carabiner.

[0036] FIG. 6 illustrates an orthogonal view of a cleaning operation for a brush-like filter device.

[0037] FIG. 7 shows a perspective view of a floatation platform assembly with various components labeled.

[0038] FIG. 8 illustrates an exploded view of a filter assembly with a frame containing a filtration portion.DETAILED DESCRIPTION

[0039] The following description sets forth exemplary aspects of the present disclosure. It should be recognized, however, that such description is not intended as a limitation on the scope of the present disclosure. Rather, the description also encompasses combinations and modifications to those exemplary aspects described herein.POLYGONE-OQ3-PCT

[0040] The present disclosure relates to a filter for removing microplastics from water. Microplastics, which are small plastic particles typically less than 5 millimeters in size, have become a significant environmental concern due to their prevalence in water bodies and potential harmful effects on aquatic ecosystems and human health. The filter described herein utilizes a novel approach to address this issue by employing fibers made from a silicone composite material.

[0041] In some cases, the filter may comprise a plurality of fibers composed of a silicone composite material. This composite material may be formulated to enhance the capture of microplastic particles from water through various physical interactions. The silicone composite material may provide a unique combination of properties that make it particularly suitable for microplastic filtration.

[0042] The filter may be configured in different forms to accommodate various applications and water treatment scenarios. The silicone may be structures into various forms. Such forms may include, e.g., morphologies such as fibers, strands, ribbons, striations, etc. As used herein, ■'fiber" generally refers to an elongated, slender structure with a high aspect ratio (length-to-width ratio), typically having a diameter or cross-sectional dimension in the micrometer to nanometer range. As used herein, “strand’’ generally refers to a unitary elongated structure that may comprise one or more fibers arranged in a substantially parallel configuration, twisted, or otherwise combined to form a single functional element. As used herein, “ribbon” generally refers to a substantially flat, elongated structure characterized by a width-to-thickness ratio typically greater than approximately 5: 1, wherein the width is significantly greater than the thickness but substantially less than the length; a ribbon may optionally be formed from homogeneous material or may comprise multiple fibers, strands, or layers arranged in a substantially planar configuration. As used herein, “striation” generally refers to a linear feature, mark, or pattern characterized by alternating regions of different physical properties, chemical composition, or visual appearance that forms a streak-like or line-like structure on or within a material; striations may be oriented in parallel, concentric, radial, or other geometric arrangements, and may be macroscopic or microscopic in scale.

[0043] In some cases, the fibers may be structured into a brush-like form that mimics plant roots, which may allow for direct submersion in water bodies. In other cases, the fibers may be arranged as loose fibers wi thin a filter cartridge, which may be suitable for systems where water flows through the cartridge.

[0044] The filtration mechanism of the disclosed filter may rely on a combination of physical interactions between the silicone composite fibers and the microplastic particles. ThesePOLYGONE-OQ3-PCTinteractions may include, but may not be limited to, entanglement, absorption, electrostatic forces, and hydrophobic interactions. The specific combination of these interactions may contribute to the effectiveness of the filter in capturing and removing microplastics from water.

[0045] The filter described herein may utilize a silicone composite material for the fibers. This composite material may be formed by mixing several components to create a unique material with properties suitable for microplastic filtration.

[0046] In some cases, the silicone composite material may be composed of polydimethylsiloxane, silicon dioxide, hydroxy-terminated silicone fluid, and optionally activated carbon. The polydimethylsiloxane may sene as the base material, providing flexibility- and hydrophobicity to the composite. Silicon dioxide may be incorporated to enhance the mechanical strength and stability of the material. The hydroxy -terminated silicone fluid may act as a cross-linking agent, improving the overall structure and durability' of the composite. Activated carbon may be added to increase the adsorption capacity of the material, particularly for organic compounds such as microplastics.

[0047] The composition of the silicone composite material may vary depending on the specific application and desired properties. In preferred embodiments, the material may comprise or consist of 50%-80% by weight of poly dimethylsiloxane, 10%-40% by weight of silicon dioxide, and l%-6% by weight of hydroxy -terminated silicone fluid and optionally 0-30 g of activated carbon per 1 kg of the raw silicone mixture. In some embodiments, the silicone composite material may be free of activated carbon. In some embodiments, the silicone composite material may include less than 5 g of activated carbon per 1 kg of the silicone composite material. In some embodiments, the silicone composite material may include 5-15 g of activated carbon per 1 kg of the silicone composite material. In some embodiments, the silicone composite material may include 15-25 g of activated carbon per 1 kg of the silicone composite material. In some embodiments, the silicone composite material may include more than 25 g of activated carbon per 1 kg of the silicone composite material. In some embodiments, the silicone composite material may include more than 50 g, 45 g, 40 g, 35 g, or 30 g of activated carbon per 1 kg of the silicone composite material. In some embodiments, no more than 200 g, 100 g, or 75 g or activated carbon are present per kg of the silicone composite material. In some embodiments, no more than 30 g of activated carbon are present per 1 kg of silicone composite material.

[0048] In some cases, the silicone composite material may also include a small amount of stearic acid. The stearic acid content may range from 0% to 1% by weight of the compositePOLYGONE-OQ3-PCTmaterial. The addition of stearic acid may help to improve the processability and surface properties of the composite.

[0049] The mixing process for creating the silicone composite material may involve carefully combining the components in appropriate proportions. The exact mixing procedure and conditions may vary depending on the specific formulation and desired properties of the final composite material.

[0050] The resulting silicone composite material may possess a combination of properties that make it particularly suitable for microplastic filtration. These properties may include flexibility, durability', hydrophobicity7, and high adsorption capacity7. The unique combination of these properties may contribute to the effectiveness of the filter in capturing and removing microplastic particles from water.

[0051] The filter described herein may utilize fibers made from the silicone composite material. These fibers may be configured to capture microplastic particles from water through various physical interactions. The structure and arrangement of these fibers may play a significant role in the filter's effectiveness.

[0052] In some cases, the fibers may be processed from the silicone composite material into specific configurations designed to optimize microplastic capture. The processing of the composite material into fibers may involve techniques such as extrusion, drawing, or spinning, depending on the desired fiber properties and dimensions.

[0053] The filter may comprise a plurality of fibers made from the silicone composite material. These fibers may be arranged in different configurations to suit various filtration applications. Two primary7configurations may be employed: a brush-like form and loose fiber arrangement.

[0054] In some cases, the fibers may be structured into a brush-like form that mimics plant roots. FIG. 1 illustrates an example of this brush-like configuration. As shown in FIG. I, the brush-like structure may consist of a central core or stem from which numerous fine bristles or fibers radiate outward in a spiral pattern. This configuration may create a dense, cylindrical shape wi th a large surface area for interaction with water and microplastic particles. The brushlike form may be particularly suitable for direct submersion in water bodies, allowing for in-situ filtration.

[0055] FIG. 2 presents another variation of the brush -like structure. As depicted in FIG. 2, the brush-like form may comprise a long central shaft or core with spiral coils wrapped around it from top to bottom. This design may provide an alternative approach to maximizing the surface area available for microplastic capture while maintaining a compact form factor.POLYGONE-003-PCT

[0056] In other cases, the fibers may be arranged as loose fibers within a filter cartridge. This configuration may be suitable for systems where water flows through the cartridge. The loose fiber arrangement may allow for a high degree of interaction between the water and the fibers, potentially increasing the chances of microplastic capture.

[0057] The structure and arrangement of the fibers, whether in brush-like form or as loose fibers, may contribute to the filter's ability to capture microplastic particles through various mechanisms. These mechanisms may include physical entanglement, where microplastics become trapped within the fiber network, and surface interactions such as adsorption or adhesion due to the properties of the silicone composite material.

[0058] The specific dimensions, density, and arrangement of the fibers may be optimized based on factors such as the expected size range of microplastics, water flow rates, and the intended application of the filter. These parameters may be adjusted to balance filtration efficiency with factors such as pressure drop and filter capacity.

[0059] The filter described herein may utilize various mechanisms to capture microplastic particles from water. These mechanisms may involve a combination of physical interactions between the silicone composite fibers and the microplastic particles, contributing to the overall effectiveness of the filtration process.

[0060] In some cases, the fibers may capture microplastic particles through entanglement. The structure and arrangement of the fibers, whether in a brush-like form or as loose fibers, may create a complex network that can physically trap microplastic particles as water passes through the filter. The size and spacing of the fibers may be optimized to enhance this entanglement effect for various sizes of microplastic particles.

[0061] Absorption may be another mechanism by which the fibers capture microplastic particles. The silicone composite material of the fibers may possess properties that allow for the absorption of certain t pes of microplastics. The activated carbon component of the composite may play a particularly important role in this absorption process, potentially increasing the filter's capacity7to retain microplastic particles.

[0062] Electrostatic forces may also contribute to the capture of microplastic particles by the fibers. The surface properties of the silicone composite material may allow for the development of electrostatic charges that can attract and hold microplastic particles. This electrostatic interaction may be particularly effective for smaller microplastic particles that might otherwise be challenging to capture through mechanical means alone.

[0063] Hydrophobic interactions may be another mechanism by which the fibers capture microplastic particles. The silicone component of the composite material may impartPOLYGONE-003-PCThydrophobic properties to the fibers. Many microplastic particles are also hydrophobic in nature. This shared hydrophobicity may lead to preferential interactions between the microplastic particles and the fiber surfaces, potentially enhancing the retention of microplastics within the filter.

[0064] In some cases, the combination of these physical interactions - entanglement, absorption, electrostatic forces, and hydrophobic interactions - may work synergistically to enhance the overall effectiveness of the filter in capturing microplastic particles. The specific contribution of each mechanism may vary depending on factors such as the size and composition of the microplastic particles, the properties of the water being filtered, and the specific configuration of the filter.

[0065] The configuration of the fibers may be optimized to maximize the effectiveness of these capture mechanisms. Factors such as fiber diameter, length, spacing, and surface properties may be adjusted to enhance the overall performance of the filter in capturing microplastic particles through the combination of physical interactions described above.

[0066] The filter described herein may be configured in different forms to accommodate various applications and water treatment scenarios. In some cases, the filter may comprise fibers structured into a brush-like form that mimics plant roots. This configuration may be particularly suitable for direct submersion in water bodies, allowing for in-situ filtration of microplastics.

[0067] FIG. 1 illustrates an example of the brush-like configuration. As shown in FIG. 1. the brush-like structure may consist of a central core or stem from which numerous fine bristles or fibers radiate outward in a spiral pattern. This configuration may create a dense, cylindrical shape with a large surface area for interaction with water and microplastic particles.

[0068] FIG. 2 presents another variation of the brush-like structure. As depicted in FIG. 2, the brush-like form may comprise a long central shaft or core with spiral coils wrapped around it from top to bottom. This design may provide an alternative approach to maximizing the surface area available for microplastic capture while maintaining a compact form factor.

[0069] In some cases, the brush-like form may be configured for direct submersion in water bodies. The structure of the brush-like form may allow for efficient water flow through the fibers, potentially increasing the chances of microplastic capture in natural water environments.

[0070] In other cases, the filter may be designed as a cartridge for systems where water flows through the cartridge. This configuration may be suitable for applications where controlled water flow is desired or where the filter needs to be integrated into existing water treatment systems.POLYGONE-003-PCT

[0071] The filter cartridge may comprise fibers configured as loose fibers within the cartridge. This arrangement may allow for a high degree of interaction between the water and the fibers, potentially increasing the chances of microplastic capture. The loose fiber configuration may provide flexibility in terms of packing density and filter capacity.

[0072] In some cases, the filter cartridge may include a housing configured to hold the filter element. The housing may be adapted to allow water to flow through the filter element for microplastic removal. The design of the housing may vary depending on the specific application and integration requirements of the filtration system.

[0073] The choice between the brush-like configuration and the cartridge design may depend on factors such as the intended application, water flow rates, and the specific characteristics of the water body or system being treated. Both configurations may utilize the silicone composite fibers to capture microplastic particles through various physical interactions, as described in previous sections.

[0074] The silicone composite material, fiber structure, and filter configurations may work together synergistically to effectively remove microplastics from water in various applications. The unique properties of the composite material, combined with the specific fiber structures and filter designs, may contribute to enhanced microplastic capture and removal efficiency.

[0075] In some cases, the silicone composite material may provide a foundation for effective microplastic removal. The combination of polydimethylsiloxane, silicon dioxide, hydroxyterminated silicone fluid, and activated carbon may result in a material with both hydrophobic and adsorptive properties. The hydrophobic nature of the silicone components may attract hydrophobic microplastic particles, while the activated carbon may enhance the adsorption of organic compounds.

[0076] The fiber structure may play a crucial role in maximizing the interaction between the composite material and microplastic particles. In some cases, the fibers may be processed into specific configurations that increase the surface area available for microplastic capture. The brush-like form, for example, may create a dense network of fibers that can physically entangle microplastic particles as water passes through. The spiral arrangement of fibers around a central core may further enhance this entanglement effect.

[0077] The filter configurations may be designed to optimize the performance of the composite material and fiber structure in different applications. In some cases, the brush-like configuration may be particularly effective for direct submersion in water bodies. The dense arrangement of fibers may allow for efficient water flow while maximizing the chances of microplastic capture through physical entanglement and surface interactions.POLYGONE-003-PCT

[0078] For applications requiring controlled water flow, and / or in an enclosed system such as a pipe or water channel, the cartridge configuration with loose fibers may be employed. This arrangement may allow for a high possibility of interaction between the water and the composite fibers, potentially increasing the efficiency of microplastic removal. The cartridge design may also provide flexibility' in terms of integration into existing water treatment systems.

[0079] The combination of the composite material properties, fiber structure, and filter configuration may result in multiple mechanisms for microplastic capture. Physical entanglement may occur as microplastic particles become trapped within the complex network of fibers. Adsorption may take place due to the activated carbon component and the hydrophobic nature of the silicone material. Electrostatic interactions may also contribute to microplastic capture, particularly for smaller particles.

[0080] In some cases, the effectiveness of microplastic removal may be further enhanced by the ability to tailor the composite material composition, fiber dimensions, and filter configuration to specific applications. For example, the ratio of components in the composite material may be adjusted to optimize hydrophobicity- or adsorption capacity for particular types of microplastics. The fiber diameter and spacing may be fine-tuned to target specific size ranges of microplastic particles.

[0081] The versatility of the filter design may allow for adaptation to various yvater treatment scenarios. In natural water bodies, the brush-like configuration may be effective for in-situ filtration, potentially reducing the need for complex yvater treatment infrastructure. In controlled environments, such as yvasteyvater treatment plants or industrial processes, the cartridge design may be integrated into existing systems to provide an additional layer of microplastic removal.

[0082] The interaction between the composite material, fiber structure, and filter configuration may also contribute to the durability and longevity of the filter. The flexibility of the silicone components may help prevent fiber breakage, while the incorporation of silicon dioxide may enhance overall mechanical strength. This durability may be particularly important in applications involving direct submersion in water bodies or high-flow water treatment systems.

[0083] In some cases, the combination of these elements may result in a filter system that can effectively remove microplastics across a yvide range of particle sizes and compositions. The multiple capture mechanisms provided by the composite material and fiber structure may allow for the removal of both larger microplastic fragments and smaller microplastic particles, addressing the diverse nature of microplastic pollution in water environments.POLYGONE-003-PCT

[0084] A number of implementations have been described. Nevertheless, it will be understood that various modifications may be made without departing from the spirit and scope of the disclosure. Accordingly, other implementations are within the scope of the following claims.

[0085] FIG. 3 illustrates an orthogonal view of a floatation platform 1 in an aquatic environment. The floatation platform 1 may comprise a rectangular structure with multiple cylindrical elements arranged in a grid pattern. The platform may be shown floating on water, indicated by wavy lines representing the water surface. The background may include a shoreline with rocks and trees depicted in simple line art.

[0086] The floatation platform 1 may include a frame structure that supports multiple vertical tubes or containers arranged in parallel rows. These tubes may be uniformly spaced and secured within the frame of floatation platform 1. The platform's design may suggest it is intended for water-based applications, possibly for filtration purposes.

[0087] In the background of the illustration, there may be a barrier or containment system shown by parallel lines extending in a V-shape from the shoreline into the water. The scene may be depicted in a simplified line drawing style typical of patent illustrations, with the floatation platform 1 shown as the primary focus of the figure.

[0088] FIG. 4 may illustrate a section view of a portion of a filter assembly. The figure may show a detailed arrangement of attachments 11 positioned in a parallel configuration along support structures. A carabiner 20 may be shown interacting with one of the attachments 11. The attachments 11 may appear to be arranged in a repeating pattern, creating a structured filtering surface. The attachments 1 1 may extend downward at an angle, forming a series of parallel elements that could facilitate water How and filtration. The carabiner 20 may be designed for securing or connecting components within the assembly.

[0089] FIG. 5 may depict an orthogonal view of a portion of a filter assembly showing the arrangement of attachments 11 and a carabiner 20. The view may show multiple rows of parallel-arranged attachments 11 extending diagonally across the frame of the structure. The attachments 11 may appear to be uniformly spaced and secured to supporting framework members. A hand may be shown manipulating a carabiner 20, which may be being connected to one of the attachments 11 at the top of the structure. The carabiner 20 may serve as a connecting mechanism for securing components to the attachments 11.

[0090] FIG. 6 may illustrate an orthogonal view' of a cleaning operation for a brush-like filter device. The drawing may show a brush-like structure with elongated bristles or fibers extending vertically, and a hand holding a bottle positioned adjacent to the brush. The bottle may appear to be dispensing liquid onto the brush structure, suggesting a cleaning or maintenancePOLYGONE-003-PCTprocedure. The brush structure may display numerous fine, densely packed fibers arranged in a cylindrical formation, consistent with the filter design described in the invention. This illustration may demonstrate a method for maintaining the filter device, which may be necessary to ensure optimal performance in capturing microplastic particles from water.

[0091] FIG. 7 may illustrate a perspective view of a floatation platform 1 assembly. The floatation platform 1 may include a first floatation element 2 and a second floatation element 3, which may be connected by parallel connector bars 6 and support bars 7. The floatation elements may each have a top surface 4 and a bottom surface 5.

[0092] The structure may include an outer portion 22, a central portion 23, and an inner portion 24. A slit 25 may be provided in the assembly. Multiple eyelets 10 may be positioned along the structure, with attachments 11 connected to these eyelets for securing purposes.

[0093] The parallel connector bars 6 may extend between the first floatation element 2 and second floatation element 3, providing structural stability to the platform assembly. The support bars 7 may be arranged perpendicular to the connector bars 6, creating a grid-like framework that may enhance the overall structural integrity of the floatation platform 1.

[0094] FIG. 8 may illustrate an exploded view of a filter assembly 800. The filter assembly 800 may include a frame 810 that contains a filtration portion 820. In the embodiment shown in FIG. 8, the filter assembly may be arranged such that water flows into an inlet port 814 of an inlet portion 812. In some embodiments, a tube or pipe (816) may be operably coupled to the inlet port. There may be a volume of space within the inlet portion configured to allow water to accumulate in the inlet portion prior to passing through the filtration portion.

[0095] The inlet portion may be operably coupled to a filtration portion 810 of the filter assembly. In some embodiments, a first shelf 818 or partition may be present, to separate the filtration portion 810 from the inlet portion 812. The first shelf 818 or partition may have one or more openings 820 intended to allow water to enter the filtration portion, while restraining fibers within the filtration portion 810 from transporting into inlet portion 812. The openings 820 may be any appropriate size, shape, etc.

[0096] The filtration portion 810 may have a body 820 defining an internal volume of space 824. In some embodiments, the body may be composed of a metal, such as stainless steel. The body may have any cross-sectional shape. In some embodiments, the body may have a circular cross-sectional area, or a rectangular cross-sectional area. Preferably, the cross-sectional area of the internal volume of space is greater than the cross-sectional area of the inlet port (such as at least 2x, 3x, 4x, 5x, lOx, 15x. 20x, 25x, 30x, or 35x the cross-sectional area. In some embodiments, the internal volume of space may be less than lOOx the cross-sectional area ofPOLYGONE-OQ3-PCTthe inlet port. The internal volume of space within the body may contain a one or more fibers 826 as disclosed herein. In some embodiments, the fibers may be at least partially coupled together. In some embodiments, the fibers may be loose fibers.

[0097] In some embodiments, the fibers may be oriented substantially orthogonally to a direction of water flow. In some embodiments, the fibers may be arranged in layers within the filtration portion, the layers being arranged generally orthogonal to the direction of flow. In some embodiments, all fibers are substantially parallel to each other. In some embodiments, all fibers within a given layer are substantially parallel to each other. In some embodiments fibers in one layer are oriented in a different direction from fibers in an adjacent layer (for example, fibers in adjacent layers may be oriented at 90 degree angles from each other).

[0098] After water flows through the filtration portion, the filtered water may then pass a second shelf 828 or partition, which may have one or more openings 830 intended to allow water to exit the filtration portion, while restraining fibers within the filtration portion 810 from transporting into downstream elements. The openings 830 may be any appropriate size, shape, etc. The openings 830 in the second shelf 828 or partition may be the same (or different) from the openings 820 in the first shelf 818 or partition.

[0099] The filter assembly may then have an outlet portion 832. Similar to the inlet portion, the outlet portion may define a volume of space within the outlet portion to allow water to accumulate in the outlet portion before passing through an outlet port 834. A tube or pipe 836 may be operably coupled to the outlet port.

[0100] In some embodiments, a method of filtering microplastics from a water source may be provided. The method may comprise providing a plurality of fibers made from a silicone composite material as disclosed herein, and contacting the plurality of fibers with water from the water source such that microplastic particles are captured by the fibers.

[0101] The water source may be any of various water sources that require microplastic filtration. In some cases, the water source may be a natural water body such as a river, stream, lake, pond, reservoir, or ocean. In other cases, the water source may be a municipal water supply, a wastewater treatment facility effluent, or an industrial process water stream. The water source may also be stormwater runoff, agricultural runoff, or water from aquaculture operations. In some embodiments, the water source may be drinking water prior to consumption or distribution.

[0102] The method may comprise positioning the plurality of fibers in a location where the fibers contact water from the water source. In some cases, this may involve submerging a brush-like filter structure directly into the water body. In other cases, this may involve installingPOLYGONE-003-PCTa filter cartridge containing loose fibers into a water flow path such that water passes through the cartridge.

[0103] The method may further comprise allowing water to flow through or around the plurality of fibers for a period of time sufficient to capture microplastic particles. The flow may be passive, relying on natural water currents or gravity, or the flow may be active, utilizing pumps or other mechanisms to direct water through the filter.

[0104] In some embodiments, the method may comprise periodically removing the plurality of fibers from contact with the water source and cleaning the fibers to remove captured microplastic particles. The cleaning may involve rinsing, agitation, or application of a cleaning solution. After cleaning, the fibers may be returned to contact with the water source for continued filtration.

[0105] The method may also comprise monitoring the effectiveness of microplastic capture and replacing or regenerating the plurality of fibers when capture efficiency decreases below a threshold level. In some cases, the captured microplastics may be collected and disposed of or recycled according to appropriate waste management protocols.

[0106] The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.

[0107] While embodiments have been described herein, those skilled in the art, having benefit of this disclosure, will appreciate that other embodiments are envisioned that do not depart from the inventive scope. Accordingly, the scope of the present claims or any subsequent claims shall not be unduly limited by the description of the embodiments described herein.

Claims

POLYGONE-003-PCTWhat is claimed is:

1. A filter for removing microplastics from water, comprising:a plurality of fibers, each of the plurality of fibers made from the silicone composite material,wherein the fibers are configured to capture microplastic particles from water, and wherein each fiber is composed of a silicone composite material formed from a mixture of polydimethylsiloxane, silicon dioxide, hydroxy-terminated silicone fluid, and optionally activated carbon.

2. The filter of claim 1, wherein the silicone composite material comprises 50%-80% by weight poly dimethylsiloxane, 10%-40% by weight silicon dioxide, l%-6% by weight hydroxyterminated silicone fluid, and 0-30 grams of activated carbon per 1 kg of the silicone composite material.

3. The filter of claim 1, wherein the plurality of fibers are structured into a brush-like form that mimics plant roots.

4. The filter of claim 1, wherein the plurality of fibers are configured as loose fibers within a filter cartridge.

5. The filter of claim 1, wherein the fibers are configured to capture microplastic particles through a combination of physical interactions including entanglement, absorption, electrostatic forces, and hydrophobic interactions.

6. The filter of claim 3, wherein the brush-like form is configured for direct submersion in water bodies.

7. The filter of claim 4, wherein the filter cartridge is designed for systems where water flows through the cartridge.

8. A method of manufacturing a filter for removing microplastics from water, comprising: providing a silicone composite material optionally containing activated carbon in the form of a fiber, strand, ribbon, or striation; andforming a structured arrangement from the silicone composite material, wherein the structured arrangement is brush-like form that mimics plant root or loose fibers within a filter cartridge.

9. The method of claim 8, wherein the silicone composite material comprises 50%-80% by weight of polydimethylsiloxane, 10%-40% by weight of silicon dioxide, l%-6% by weight of hydroxy-terminated silicone fluid, and optionally 0-30 g of activated carbon per 1 kg of the silicone composite material.POLYGONE-003-PCT10. The method of claim 8, wherein the structured arrangement is a brush-like form that mimics plant roots.

11. The method of claim 8, wherein the structured arrangement is loose fibers within a filter cartridge.

12. The method of claim 11, wherein the filter cartridge is configured for direct submersion in water bodies.

13. The method of claim 11, wherein the filter cartridge is designed for systems where water flows through the cartridge.

14. The method of claim 8, wherein the fibers are configured to capture microplastic particles through a combination of physical interactions including entanglement, absorption, electrostatic forces, and hydrophobic interactions.

15. A filtration system for removing microplastics from water, comprising:a filter element comprising fibers made from a silicone composite material, the composite material formed from a mixture of poly dimethylsiloxane, silicon dioxide, hydroxy -terminated silicone fluid, and optionally activated carbon; anda housing configured to hold the filter element, wherein the housing is adapted to allow water to flow through the filter element for microplastic removal.

16. The filtration system of claim 15, wherein the silicone composite material comprises 50%-80% by weight poly dimethylsiloxane, 10%-40% by weight silicon dioxide, l%-6% by weight hydroxy-terminated silicone fluid, and 0-30 grams of activated carbon per 1 kg of the silicone composite material.

17. The filtration system of claim 15, wherein the fibers are structured into a brush-like form that mimics plant roots.

18. The filtration system of claim 15, wherein the fibers are configured as loose fibers within the filter element.

19. The filtration system of claim 17, wherein the brush-like form is configured for direct submersion in water bodies.

20. The filtration system of claim 15, wherein the fibers are configured to capture microplastic particles through a combination of physical interactions including entanglement, absorption, electrostatic forces, and hydrophobic interactions.

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