Method for preparing cosmetic raw materials from solid and liquid wastes of deep-sea mining system

Abstract

The present invention belongs to the technical field of solid-liquid waste treatment and cosmetic raw material preparation, and specifically discloses a method for preparing cosmetic raw materials from solid-liquid waste based on a deep-sea mining system. The method comprises the following steps: (1) ore mud separation; (2) mud-water separation; (3) multi-stage seawater processing; (4) sediment solid particle processing: separating the siliceous mud and then using a vibrating screen to classify the siliceous mud into coarse particles and fine particles; (5) coarse particle processing: rinsing the coarse particles with clean water and drying them, then sterilizing them with ultraviolet light, and finally grinding them; (6) fine particle processing: separating and purifying cerium oxide particles, refining them, and reducing their catalytic oxidation activity. The present invention effectively reduces pollution and impact on the seabed environment, saves cosmetic companies the cost of raw material collection, and is conducive to optimizing the marine industrial structure and promoting the green development of the marine industry.

Description

Technical Field

[0001] The present invention belongs to the technical field of solid-liquid waste treatment and cosmetic raw material preparation, and in particular relates to a method for preparing cosmetic raw materials from solid-liquid waste based on a deep-sea mining system. Background Art

[0002] With the increasing demand for mineral resources and the continuous depletion of land resources, the vast ocean bottom is rich in mineral resources and is considered to be the most important development direction for mankind in the future.

[0003] Deep-sea mining involves collecting solid minerals from the seafloor and transporting them to the surface. The collection system typically consists of a seafloor mining vehicle, a hoisting system, and a mining vessel. The mining vehicle's collection device often uses hydraulic methods, using high-pressure water jets to suspend polymetallic nodules and surface sediments. The water flow then collects them on the seafloor mining vehicle. A hoisting system consisting of pumps and pipes then transports the nodules and muddy water from the seafloor to the mining vessel, completing the collection process.

[0004] Currently, the collection of polymetallic nodules in the deep sea disturbs surface sediments, causing them to become suspended. This results in the collection device collecting not only polymetallic nodules but also deep-sea sediments and deep seawater. Normally, the collected sediments and deep seawater have no practical application value. They are separated as solid and liquid waste and discharged directly to the seabed. However, under strong disturbance, they form deep-sea plumes, which seriously pollute the sea area and affect the survival of marine life. According to statistics, each polymetallic nodule collector produces 400 tons of solid particles suspended in 50,000 tons of wastewater every day. Therefore, there is an urgent need for a green and environmentally friendly method for the utilization of solid and liquid waste.

[0005] In recent years, an increasing number of cosmetics brands have begun incorporating marine elements into their products. Marine elements include seaweed, coral, deep seawater, deep-sea mud, and more. These natural ingredients have been shown to have excellent moisturizing and repairing effects on the skin. For example, deep-sea mud contains a variety of trace elements and hundreds of rare minerals, which can enhance the skin's resistance. Its strong adsorption properties can deeply cleanse the skin, leaving it clean, clear, and delicate, and it can be used to make facial masks. Deep ocean water is characterized by its low temperature, rich mineral content, cleansing properties, and low pathogen content. It can effectively replenish skin protein, restore skin elasticity, and promote cell metabolism. However, these marine elements have the problem of high collection costs, especially since deep seawater and deep-sea mud are located deep in the ocean, and special vessels and equipment are usually required to reach the bottom of the deep sea for collection. Summary of the Invention

[0006] The purpose of the present invention is to provide a method for preparing cosmetic raw materials from solid and liquid wastes based on a deep-sea mining system, which effectively solves the problem of serious environmental pollution caused by the direct discharge of solid and liquid wastes generated during deep-sea polymetallic nodule collection activities into the seabed.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] The method for preparing cosmetic raw materials from solid and liquid wastes of a deep-sea mining system comprises the following steps:

[0009] S1. Sludge separation: Separate the collected polymetallic nodules from the mud and water;

[0010] S2. Mud and water separation: Based on the principle of gravity sedimentation, multi-stage sedimentation tanks are used to allow solid particles in the mud and water to settle step by step, separating the seawater and sediment solid particles in the mud and water;

[0011] S3, multi-stage seawater processing: The seawater separated in step S2 is first subjected to multi-stage physical filtration to remove impurities in the seawater, and then reverse osmosis technology is used to reduce the salt content in the seawater to meet the water standards for cosmetics;

[0012] S4. Sediment solid particle processing: The sediment solid particles separated in step S2 are used to separate the siliceous mud using a settling tank, and then the siliceous mud is subjected to particle classification using a vibrating screen. The particle classification uses a particle size of 0.0625 mm as a limit to classify the siliceous mud into coarse particles and fine particles;

[0013] S5, coarse particle processing: rinse the coarse particles with clean water and dry them, then sterilize them with ultraviolet light and finally grind them;

[0014] S6. Fine particle treatment: separating and purifying cerium oxide particles from the fine particles, refining the cerium oxide particles, and performing a treatment to reduce the catalytic oxidation activity of the refined cerium oxide particles.

[0015] Furthermore, in step S5, the particle size of the coarse particles after grinding is 10 to 100 nanometers, and in step S6, the particle size of the cerium oxide particles after refinement is less than 70 nanometers.

[0016] Furthermore, in step S6, rare earth separation and purification technology is used to separate and purify cerium oxide particles from the fine particles.

[0017] Furthermore, in step S6, the method for reducing the catalytic oxidation activity is: adding calcium ions to the refined cerium oxide particles, and covering the surface of the calcium ion-doped cerium oxide with a layer of silicon dioxide film.

[0018] Furthermore, the seawater treated in step S3 replaces deionized water as raw water for cosmetics.

[0019] Furthermore, the coarse particles treated in step S5 are used in sunscreen products and cleaning products.

[0020] Furthermore, the cerium oxide treated in step S6 is applied to makeup, foundation, physical sunscreen products and anti-aging products.

[0021] The beneficial technical effects of the present invention are:

[0022] (1) The present invention brings the solid and liquid wastes generated by deep-sea mining back to the sea surface for processing, which does not cause emission pollution. Compared with the current method of directly discharging the solid and liquid wastes generated by deep-sea mining into the seabed, it effectively reduces the pollution and impact on the seabed environment, and plays a positive role in protecting the environment, saving energy, promoting social benefits, preventing waste from causing excessive consumption burden on the earth, and reducing the production of garbage and the consumption of raw materials.

[0023] (2) The present invention applies the processed solid and liquid wastes generated by deep-sea mining to the preparation of cosmetics, which helps save the raw material collection costs of cosmetics companies, optimizes the marine industry structure, and promotes the green development of the marine industry.

[0024] (3) The present invention effectively ensures the efficacy of cosmetics by utilizing the natural advantages of marine elements, produces high value-added products, and promotes the development of cosmetics companies. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 This is a schematic structural diagram of a system for treating solid and liquid wastes generated by deep-sea mining according to the present invention;

[0027] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle screen separation device;

[0028] Figure 3 This is a technical flow chart for preparing cosmetic raw materials from solid and liquid waste based on the deep-sea mining system in Example 2. DETAILED DESCRIPTION

[0029] Example 1

[0030] A treatment system for solid and liquid waste generated by deep-sea mining, such as Figure 1As shown, the system comprises a seabed mining vehicle 1, a lifting unit, and a processing unit. The seabed mining vehicle 1 includes a jet nozzle located at the front for spraying water onto the seabed, a collection port 2 for collecting polymetallic nodules and a mixture of mud and water, and a screen separation device 3 located within the mining vehicle. While the seabed mining vehicle 1 is operating, the jet nozzle sprays water onto the seabed, disturbing the seabed. Driven by the rising water flow, the polymetallic nodules and mud and water are collected at the collection port 2, completing the collection process.

[0031] like Figure 2 As shown, the screen separation device 3 includes a screen 4 for separating polymetallic nodules from mud and water, a perforated conveyor belt 5, multiple spray heads 6 with adjustable angles, and a mud and water outlet 7. The screen 4 is tilted downward, with the higher end of the screen 4 connected to the collection port 2, and the lower end of the screen 4 connected to the perforated conveyor belt 5. The screen 4 has multiple sieve holes, and the perforated conveyor belt 5 has multiple micropores. In this embodiment, the screen separation device 3 is approximately a cube, the spray head 6 is provided on the inner top wall of the screen separation device 3, the higher end of the screen 4 is connected to the upper part of an inner side wall of the screen separation device 3, and the mud and water outlet 7 is provided on the bottom wall of the screen separation device 3.

[0032] The material collected by the seabed mining vehicle 1 enters the screen 4 through the collection port 2. Muddy water flows through the mesh holes of the screen 4 to the inner bottom of the screen separation device 3. The polymetallic nodules roll from the screen 4 onto the perforated conveyor belt 5. Sprinklers 6 spray seawater to wash away the mud covering the nodules' surface, after which the nodules are collected. If the screen 4 experiences poor flow, the angle of the sprayer 6 can be adjusted to flush the screen 4 and prevent clogging of the mesh holes.

[0033] The lifting unit includes a suction pump and multiple transfer stations 8. In this embodiment, there are three transfer stations 8. Each transfer station 8 is equipped with an inlet switch for controlling the inflow of mud and water, and an outlet switch for controlling the outflow of mud and water. The inlet of the transfer station 8 is connected to the mud and water outlet 7. During operation, the outlet switches of all transfer stations are closed, and only one of the multiple transfer stations has its inlet switch open, while the inlet switches of the remaining transfer stations are closed. When the inlet switch of a transfer station with an open inlet switch reaches full capacity, its inlet switch is closed, its outlet switch is opened, and the inlet switch of one of the remaining transfer stations is opened simultaneously. This process is repeated, effectively ensuring efficient and orderly mud and water transportation.

[0034] The processing unit includes a muddy water storage tank 9, a multi-stage sedimentation tank 10, a seawater treatment unit, and a sediment treatment unit. In some embodiments, the multi-stage sedimentation tank 10, the seawater treatment unit, and the sediment treatment unit are located on land. The muddy water storage tank 9 collects muddy water on the sea surface and, once full, transports the muddy water to land for subsequent processing. The multi-stage sedimentation tank includes a muddy water inlet, a sediment outlet 11 at the bottom, and a seawater outlet 12 at the upper middle portion. The sediment treatment unit includes a settling tank 13 for separating siliceous mud from other sediments and a vibrating screen 14 for classifying the siliceous mud. The seawater treatment unit includes a multi-stage physical filtration device 15 and a reverse osmosis device 16. The mud and water inlet is connected to the outlet of the mud and water storage tank 9, the sediment outlet 11 is connected to the inlet of the sedimentation tank 13, the siliceous mud outlet of the sedimentation tank 13 is connected to the vibrating screen 14, the seawater outlet 12 is connected to the inlet of the multi-stage physical filtration device 15, and the outlet of the multi-stage physical filtration device 15 is connected to the reverse osmosis device 16.

[0035] The muddy water in the transfer station 8 is lifted to a sealed, low-temperature, and high-pressure muddy water storage tank 9, and then the muddy water storage tank 9 is transported to land for processing. The specific process is as follows: the muddy water in the muddy water storage tank 9 first passes through a multi-stage sedimentation tank 10 to separate the sediment from the seawater. The separated sediment is discharged from the sediment outlet 11 into the sedimentation tank 13, and the sedimentation tank 13 is used to separate the siliceous mud from other sediments. Since the density of the siliceous mud is lower than that of other sediments, the siliceous mud remains in the upper part of the sedimentation tank 13 due to gravity; the siliceous mud is then graded by the vibrating screen 14. The separated seawater enters the multi-stage physical filtration device 15 to remove impurities such as suspended matter, colloids, and microorganisms in the seawater, and then enters the reverse osmosis device 16, which uses reverse osmosis technology to reduce the salt content in the seawater to meet the water standards for cosmetics.

[0036] Example 2

[0037] A method for preparing cosmetic raw materials from solid and liquid wastes of a deep-sea mining system, using the solid and liquid waste treatment system for deep-sea mining described in Example 1, with reference to Figure 3 , including the following steps:

[0038] S1, sludge separation;

[0039] The collected polymetallic nodules are separated from muddy water by using the screen separation device 3 of the seabed mining vehicle 1 , and the separated muddy water is transported to the muddy water storage tank 9 via the transfer station 8 .

[0040] S2, mud and water separation;

[0041] The multi-stage sedimentation tank 10 is used to allow the solid particles in the muddy water to settle step by step, thereby separating the seawater and sediment solid particles in the muddy water.

[0042] S3, seawater multi-stage processing;

[0043] The seawater separated in step S2 is first subjected to multi-stage physical filtration by a multi-stage physical filtration device 15 to remove impurities such as suspended matter, colloids, and microorganisms. It is then subjected to a reverse osmosis device 16 to reduce its salinity, thereby meeting cosmetic water standards. This desalination and removal process maximizes the retention of dozens of minerals and trace elements found in deep seawater, including sodium, potassium, calcium, bromine, and iodine. Compared to deionized water used in cosmetics, deep seawater has the advantages of being a small-molecule water with a balanced mineral content.

[0044] After undergoing multiple stages of processing, seawater can be used in skin care products. Because it's deep ocean water, it possesses a balanced mineral content that helps maintain the perfect moisture ratio in the stratum corneum for extended periods. Its ingredients also effectively replenish skin proteins, restore elasticity, and promote cell metabolism, thereby enhancing the skin's natural healing and moisture-retaining properties. Furthermore, due to its inherent small molecule properties, deep ocean water can more easily penetrate the skin's barrier layer and penetrate deep into the skin. Water is the very foundation of skin, and 70% to 80% of everyday skincare cosmetics are water. From cleansers, toners, serums, eye creams, and face creams to sunscreens, foundations, and BB creams, "water" is almost always listed first on the ingredient list. Using deep ocean water instead of deionized water as a cosmetic ingredient can enhance various properties, including moisturizing, penetration, and soothing properties.

[0045] S4, sediment solid particle treatment;

[0046] The sediment solid particles separated in step S2 are used to separate the siliceous mud using a settling tank 13, and then the siliceous mud is subjected to particle classification using a vibrating screen 14. The particle classification uses a particle size of 0.0625 mm as a limit to divide the siliceous mud into coarse particles and fine particles.

[0047] The main components contained in the siliceous mud are different due to different particle sizes, wherein the light rare earth elements (La, Ce, Pr, Nd, Sm) are relatively enriched in the fine particles, and the silicon dioxide content is high in the coarse particles.

[0048] The average content of cerium (Ce) in the fine particles is 87.12 μg / g, which is higher than the average content of cerium in terrestrial ores (66.5 μg / g), and can improve the extraction efficiency of cerium.

[0049] The coarse particles can contain over 68% silica, with a small amount of Al2O3. Compared to terrestrial silica minerals, these coarse particles have a higher content and purity, are finer in size, and produce less pollution. This results in less skin irritation and more stable quality when used in cosmetic raw materials. The coarse particles also contain a variety of trace elements and hundreds of rare minerals, enhancing the skin's resistance.

[0050] S5, coarse particle treatment;

[0051] First, it is rinsed with clean water to remove dirt and impurities, dried and then sterilized with ultraviolet light to kill any viruses and bacteria, and then ground to a particle size within the range of 10-100 nanometers.

[0052] After treatment, the coarse silica particles become more uniform and finer, which increases their surface area, improves the silica's adsorption capacity and stability, and makes it more suitable for use in cosmetics. In addition, the fine particles can be more easily absorbed and utilized by the skin, improving the effectiveness of cosmetics.

[0053] Nanosilica also boasts strong UV reflection, strong adsorption, and excellent stability, making it suitable for use in sunscreens and cleansing products. Previously, organic compounds were often used as UV absorbers in sunscreens, but this increased the amount added to minimize UV ​​exposure, increasing the risk of skin cancer and chemical allergies. However, as an inorganic ingredient, silica is non-toxic and odorless, eliminating these issues. It does not decompose or discolor upon exposure to UV rays, nor does it chemically react with other ingredients in the formula. These outstanding characteristics have laid a solid foundation for the upgrading of sunscreen cosmetics. The ground coarse particles can also be added to cleansing products such as facial masks and cleansers. Due to its strong adsorption capacity, silica absorbs oil and dirt from the skin's surface, leaving it refreshed and clean. Al2O3 has abrasive properties and can be used for exfoliation. Adding the processed coarse particles to cleansing products can also increase their consistency and viscosity, making them easier to apply and rinse.

[0054] S6, fine particle processing;

[0055] Rare earth separation and purification technology is used to separate and purify cerium oxide particles from fine particles. These particles are then refined to a particle size below 70 nanometers, resulting in better dispersion, increased stability, and improved UV shielding properties. However, the strong oxidative and catalytic activity of refined nanoscale cerium oxide limits its application in the cosmetics industry. This requires reducing its catalytic and oxidative abilities to ensure its stability in cosmetic formulations.

[0056] Specifically, calcium ion doping can reduce the oxidation catalytic activity of cerium oxide, but it is not sufficient to achieve stability. Further coating the surface of the calcium ion-doped cerium oxide with a silicon dioxide film can also achieve the desired reduction in oxidation catalytic activity. The silicon dioxide particles treated with the coarse particles in step S5 can be directly used as the coating material.

[0057] Nano-sized cerium oxide, after separation, purification, and treatment to reduce its oxidative catalytic activity, can be incorporated into products to ensure its stable functional properties. Cerium oxide, like titanium dioxide, possesses strong UV resistance, but is safer. Replacing titanium dioxide with cerium oxide in makeup, foundation, and physical sunscreen products can address the carcinogenic risk posed by some sunscreens. Furthermore, cerium oxide, as a skin conditioning agent, can be incorporated into anti-aging products, demonstrating significant antioxidant benefits, free radical scavenging, and enhanced product efficacy.

[0058] By bringing the solid and liquid waste generated by deep-sea mining back to the sea surface for processing, this method, on the one hand, does not cause emission pollution. Compared with the current method of directly discharging the solid and liquid waste generated by deep-sea mining into the seabed, it effectively reduces pollution and impact on the seabed environment. It plays a positive role in protecting the environment, saving energy, promoting social benefits, preventing waste from imposing an excessive consumer burden on the earth, and reducing garbage production and raw material consumption. On the other hand, it turns waste into treasure by using the processed solid and liquid waste to prepare cosmetic raw materials, which helps save cosmetics companies the cost of raw material collection, optimizes the marine industry structure, and promotes the green development of the marine industry.

[0059] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A method for preparing cosmetic raw materials from solid and liquid wastes of a deep-sea mining system, characterized in that: The following steps are involved: S1. Sludge separation: Separate the collected polymetallic nodules from the mud and water; S2. Mud and water separation: Based on the principle of gravity sedimentation, multi-stage sedimentation tanks are used to allow solid particles in the mud and water to settle step by step, separating the seawater and sediment solid particles in the mud and water; S3, multi-stage seawater processing: The seawater separated in step S2 is first subjected to multi-stage physical filtration to remove impurities in the seawater, and then reverse osmosis technology is used to reduce the salt content in the seawater to meet the water standards for cosmetics; S4. Sediment solid particle processing: The sediment solid particles separated in step S2 are used to separate the siliceous mud using a settling tank, and then the siliceous mud is subjected to particle classification using a vibrating screen. The particle classification uses a particle size of 0.0625 mm as a limit to classify the siliceous mud into coarse particles and fine particles; S5, coarse particle processing: rinse the coarse particles with clean water and dry them, then sterilize them with ultraviolet light and finally grind them; S6. Fine particle treatment: separating and purifying cerium oxide particles from the fine particles, refining the cerium oxide particles, and performing a treatment to reduce the catalytic oxidation activity of the refined cerium oxide particles; In step S6, the method for reducing the catalytic oxidation activity is: adding calcium ions to the refined cerium oxide particles, and covering the surface of the calcium ion-doped cerium oxide with a layer of silicon dioxide film.

2. The method for preparing cosmetic raw materials from solid and liquid wastes based on a deep-sea mining system according to claim 1, characterized in that: In step S5, the particle size of the coarse particles after grinding is 10 to 100 nanometers. In step S6, the particle size of the cerium oxide particles after refinement is less than 70 nanometers.

3. The method for preparing cosmetic raw materials from solid and liquid wastes based on a deep-sea mining system according to claim 2, characterized in that: In step S6, rare earth separation and purification technology is used to separate and purify cerium oxide particles from the fine particles.

4. The method for preparing cosmetic raw materials from solid and liquid wastes based on a deep-sea mining system according to claim 3, characterized in that: The seawater treated in step S3 is used as raw water for cosmetics.

5. The method for preparing cosmetic raw materials from solid and liquid wastes based on a deep-sea mining system according to claim 4, characterized in that: The coarse particles treated in step S5 are used in sunscreen products and cleaning products.

6. The method for preparing cosmetic raw materials from solid and liquid wastes based on a deep-sea mining system according to claim 5, characterized in that: The cerium oxide treated in step S6 is used in makeup, foundation, physical sunscreen products and anti-aging products.

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