13 results about "Uv treatment" patented technology

The invention provides a reverse osmosis optimal dosing system and method based on ultraviolet sterilization, and the method comprises the following steps: firstly, the system monitors the influent microorganism load and water quality in real time, dynamically calculates the required ultraviolet dosage, and precisely adjusts the power of an ultraviolet sterilizer; secondly, according to the residual microorganism risk and the water inlet flow after ultraviolet treatment, the feeding amount of an oxidizing bactericide (such as sodium hypochlorite) is accurately adjusted according to a PID control strategy combining feedforward and feedback; meanwhile, according to the oxidation-reduction potential of the sterilized water body, a reducing agent (such as sodium hydrogen sulfite) is intelligently added to protect the reverse osmosis membrane. And finally, efficient cooperation of ultraviolet physical sterilization and chemical sterilization is achieved, on the premise that strict control over microbial pollution is guaranteed, the consumption and operation cost of chemical agents are remarkably reduced, generation of by-products is reduced, the service life of a reverse osmosis membrane is prolonged, and the intelligent level of system operation and the overall economic benefits are improved.

Some embodiments are directed to systems and methods for treating a viscous fluid. The viscous liquid may be a liquid sugar. The viscous fluid may have a viscosity of at least 50 cP. The system may include one or more mixers configured to receive the viscous fluid and to generate turbulent flow of the viscous fluid; and one or more UV chambers configured to receive the viscous fluid from the mixer and to expose the viscous fluid to a dose of UV light, the dose being at least 250 mJ / cm2. The system may deliver a total dose of UV light of about 500 mJ / cm2 such that bacteria and other contaminants are reduced or eliminated.

The invention relates to an apparatus and process for pre-coating (111) and subsequent digital sol-gel inkjet printing (122) on a metal strip, where then a protective clear coat (124) is applied over the dried ink. The core of the invention lies in the fact that the printing is of the sol-gel ink type and the pre-coating (111) is no longer performed by separate application of two layers of coating, namely a primer and a base coat, and the relative drying and cooling phases of the coatings, but by application of a single coating that combines the functions of the primer and base coat. Furthermore, the process is even further simplified by printing with a special sol-gel ink type that does not require UV treatment, only a simple drying of the ink after application.

The invention discloses a water supply method and system for terminal processing and storage-tank-free distribution of non-distillation water for injection and a readable storage medium. The method comprises the following steps: terminal processing; sequentially carrying out first ultraviolet treatment and second ultraviolet treatment on the reverse osmosis produced water, and then carrying out continuous electrodeionization treatment; wherein the first ultraviolet treatment is carried out after multiple times of cyclic irradiation and then the second ultraviolet treatment is carried out; performing distribution; and on the basis of the real-time requirements of the water consumption points, the qualified injection water is distributed to the water consumption points without storage tanks by regulating and controlling the water supply flow. The problems of insufficient water supply during peak water consumption, water quality fluctuation, microorganism breeding risk, low terminal processing efficiency, equipment reliability, energy consumption and the like in the traditional production and distribution process of the non-distillation injection water are solved; the equipment corrosion risk can be reduced, microorganism breeding is inhibited, continuous high purity and safety of water quality are ensured, energy consumption is reduced, and water supply stability is improved.

In one aspect, a heat transfer apparatus including an air inlet, an air outlet, a fan assembly to generate an airflow from the air inlet to the air outlet, a heat exchanger to transfer heat to the airflow, and an ultraviolet (UV) light source operable to emit UV light and treat the airflow. The heat transfer apparatus further including an automated cleaning apparatus operable to clean an interior surface of the heat transfer apparatus and increase an intensity of UV light in the heat transfer apparatus. The automated cleaning apparatus has a controller configured to cause the automated cleaning apparatus to clean the interior surface of the heat transfer apparatus in response to a reduced airflow UV treatment effectiveness condition.

The present invention relates to a method for producing beetle oil enriched with vitamin D3, comprising a light treatment step in which at least one light source emits ultraviolet radiation in the direction of said beetle oil.

In one aspect, a heat transfer apparatus including an air inlet, an air outlet, a fan assembly to generate an airflow from the air inlet to the air outlet, a heat exchanger to transfer heat to the airflow, and an ultraviolet (UV) light source operable to emit UV light and treat the airflow. The heat transfer apparatus further including an automated cleaning apparatus operable to clean an interior surface of the heat transfer apparatus and increase an intensity of UV light in the heat transfer apparatus. The automated cleaning apparatus has a controller configured to cause the automated cleaning apparatus to clean the interior surface of the heat transfer apparatus in response to a reduced airflow UV treatment effectiveness condition.

A fluid disinfecting apparatus is disclosed. The fluid disinfecting apparatus comprises a housing comprising a fluid inlet, a fluid outlet and a fluid flow path between the fluid inlet and the fluid outlet. A UV treatment module is interposed between the fluid inlet and the fluid outlet The UV treatment module comprises a sterilisation chamber configured to sterilise fluid contained therein. The sterilisation chamber comprises first and second UVC LED arrays wherein the first and second UVC LED arrays are positioned such that they are substantially opposite one another.

This invention relates to the field of UV anti-adhesion film preparation technology, specifically to a UV anti-adhesion film for UTG processing with dual crosslinking control and its preparation method. It consists of a modified PO base film and a composite adhesive layer. The modified PO base film is a polyethylene-polypropylene blend modified polyolefin film. The composite adhesive layer contains a fluorinated modified polyurethane acrylate prepolymer, a multifunctional UV monomer, a composite photoinitiator, and a dual interface modifier. The mass percentages of each component are 38-45%, 42-48%, 3-5%, and 2-4%, respectively. The multifunctional UV monomer is a mixture of TMPTA and HDDA at a mass ratio of 1:1.2. This invention optimizes the adhesive layer formulation and base film pretreatment process, improving etch resistance and interfacial compatibility, achieving precise matching of peel force before and after UV treatment, resulting in a product with low thermal shrinkage, minimal adhesive residue, and reduced glass damage. It significantly improves the yield of UTG thinning and is suitable for large-scale processing of flexible electronics.

This utility model discloses a waste gas treatment device for circuit board production, including an inlet pipe and a treatment tank. A cover is connected to the top of the treatment tank, which contains an alkaline treatment solution. An aeration pipe immersed in the alkaline treatment solution is installed inside the treatment tank. An activated carbon treatment box is located on one side of the treatment tank, and a UV treatment box is located on the other side of the activated carbon treatment box. This utility model introduces waste gas generated during circuit board production into the treatment tank, where it reacts with the alkaline treatment solution to remove acidic gases and dust. The gas is then further treated in the activated carbon treatment box to adsorb moisture and residual pollutants. Finally, the waste gas passes through the UV treatment box to treat organic waste gases. Compared to existing single-treatment methods, this utility model features high treatment efficiency and good treatment effect.

Method of Preparing Carbon Material Precursors A method of preparing a carbon material precursor for carbonisation. The method comprises the steps of a) providing a carbon material precursor comprising a lignin; b) treating the carbon material precursor with a crosslinking agent; and c) heat treating the carbon material precursor obtained from step b) by heating the carbon material precursor at a temperature of from 100°C to 350°C. Also disclosed is such a method comprising a step b) of irradiating the carbon material precursor with UV light; and such a method comprising a step c) of treating the carbon material precursor with a crosslinking agent after heat treating the fibre. The use of the crosslinking agent and / or the UV treatment may improve the efficiency of the stabilisation of carbon material precursors and facilitate handling of the carbon fibre precursors during stabilisation and carbonisation steps. A method of producing a carbon material is also provided.

The present invention provides an industrial printing apparatus for packaging roll material / substrates. The apparatus may include a water-based coating device, a UV treatment device, and a UV embellishment device. The apparatus may comprise an unwinding mechanism capable of receiving and unwinding a roll material / substrate; a rewind mechanism capable of providing roll to roll transmission of the material / substrate; a roll lift mechanism; a material webguide for retaining the roll material / substrate perfectly straight and inline; a servo tension control infeed; a corona treater; a servo tension control pull drive nip roller; at least one print station; at least one dryer; at least one drop-in unit capable of providing printing features including UV spot print / varnish, cold foil, cast and cure, textile effects and combinations thereof; and a servo outfeed nip roller. The apparatus increases efficiencies for printing packaging for edible food and beverage products on a large scale while saving significant operating time.

The utility model relates to the technical field of slurry processing, especially to a reclamation slurry chemical additive treatment device, which comprises a slurry filtering unit, a chemical regulating unit, a chemical storage unit for storing pH regulators or salinity regulators, a slurry storage unit, a reaction container, a dispensing unit for storing peroxy organic acids, a UV treatment unit and a slurry detection unit. The filtering unit, the chemical regulating unit, the slurry storage unit and the reaction container are sequentially connected through the feed inlet. The chemical storage unit is connected to the chemical regulating unit. The dispensing unit is connected to the feed inlet of the reaction container. The discharge outlet of the reaction container, the UV treatment unit and the slurry detection unit are sequentially connected. The strong oxidizing property and environmental friendliness of peroxy organic acids are used to remove the reclamation slurry chemical additive. The in-situ treatment device reduces the secondary pollution caused by the traditional ex-situ treatment method, and reduces the transportation time and cost.