Recycling of Waste Film Films: Medical X-ray Film Recycling

With the advancement of technology, digital imaging technology has gradually replaced traditional film photography. However, waste film is still ubiquitous in our lives. These wastes not only pollute the environment, but also contain abundant precious metal resources. From the perspective of precious metal waste recycling, the recycling and treatment of waste film sheets has extremely high economic value and environmental significance.

1、 Application of precious metal resources in waste film production

In the traditional film production process, some precious metal elements are widely used in different types of film products. For example, silver is used as a key element in imaging in black and white and color films; Gold is used in the production of advanced color films to improve their photosensitivity and stability. Although the content of these precious metals in waste film sheets is relatively low, due to their high value, recycling and reuse have great potential.

2、 Method for recycling and processing waste film sheets

1. Chemical treatment method: Chemical treatment method is a method of extracting valuable metals from film using chemical agents. Precious metals in the film can be dissolved by using Sodium cyanide, sulfuric acid, nitric acid and other chemical reagents. Subsequently, the dissolved precious metals are separated from the waste liquid through steps such as precipitation and filtration for further purification and recovery.

2. Incineration method: Incineration method is a method of burning waste film sheets in a high-temperature environment to separate precious metals. During this process, the organic matter in the film will be completely burned, while the metal elements will be collected. Subsequently, precious metals can be purified to a level of recyclability through smelting and refining processes.

3、 The significance of recycling and processing waste film sheets

1. Resource reuse: The precious metal resources in waste film can be recycled and reused, greatly reducing the pressure on natural resource extraction. In addition, the cost of recovering precious metals from waste film is relatively low, which helps to reduce the price of precious metal products and promote the development of precious metal related industries.

2. Environmental protection: Waste film tablets contain harmful substances such as silver salts, chemicals, etc. If discarded arbitrarily, it will cause serious pollution to the environment. By recycling and processing, these harmful substances can be effectively controlled and their impact on the environment can be reduced. In addition, recycling can also reduce the amount of waste landfilling and reduce the pressure on land resources.

3. Create employment opportunities: The recycling and disposal of waste film requires a large amount of manpower and technical support. From collection, classification, transportation to processing, purification, and sales, the entire industrial chain provides numerous employment opportunities for society, which helps to improve the employment market environment.

As a potential precious metal resource, the recycling and treatment of waste film not only helps to alleviate resource scarcity, but also reduces environmental pollution and creates new economic growth points. At present, the waste film recycling and processing industry is in a critical stage of development, and in the future, it will usher in more opportunities in technological innovation, industrial upgrading, international cooperation, and other aspects.

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