Electronic Waste Recycling Technology

Electronic waste or e-waste is a term used to describe all kinds of electronic gadgets and equipment, such as TVs, radios, refrigerators, microwave ovens, electronic clocks, computers, printers, scanners, cameras, laptops, light bulbs, mobile phones. accompanying peripherals that for some reason become unusable and are eventually thrown into the environment.

Why should we recycle electronic waste?

Recycling rather than disposing of electronic waste is becoming a common trend, firstly because it provides a reasonable and cost-effective conservation of resources in the environment. This is because, for example, plastic parts, metals on microcircuit boards, glass in cathode ray tubes, etc. Some parts and components of electronic waste, such as electronic waste, are generally reusable.

Second, electronic waste is one of the main causes of environmental pollution. Besides visual pollution, some parts and components of electronics, such as cathode ray tubes, contain harmful substances such as lead, which, if left indiscriminately in the environment, can enter human consumption and cause adverse health effects. So recycling prevents this from happening and takes a step towards creating a cleaner environment that is less prone to human exposure to harmful substances.

Electronic Waste Recycling Process

Electronic waste is usually recycled in a two-step process; sorting and treatment.

Separation means that the mass of electronic waste, for example plastics, metals, glass, wood, rubber, etc. It is a complete separation into different material categories such as Another way to sort is by specific components that undergo a particular treatment, for example: hard drives, cathode ray tubes, motherboards, cell phone circuits, camera lenses, batteries, flash disks, CDs, DVDs, cables, switches, processors etc.

Treatment is the actual processing of classified electronic waste groups or categories, usually by different processing units for each material or component category.

E-waste treatment methods

Plastics are melted and turned into other useful products.

Glass from cathode ray tubes is often reused in making new cathode ray tube monitors. (Cathode ray tubes contain high amounts of lead, which is highly toxic.)

Mercury, a common toxic substance, is often removed and reused in dental practices, while phosphorus from bulbs is used to make fertilizers.

Wood obtained from older generation electronic devices (speakers, radios and television sets) is often broken down and used in agriculture or to make fuel materials.

Component parts such as hard drives made from aluminum are melted down and the resulting metal ingots are used to make vehicle parts.

There are also certain machine parts that are expressly returned to the manufacturer for recycling, such as printer toner cartridges. Here we see that recycling does not necessarily mean actively treating electronic waste, but can also be about categorizing components and returning them to the manufacturer (for manufacturers who recycle).

Some metals, such as barium, are removed and reused through electrolysis. Similarly mined nickel and cadmium are reused in making reinforced steels and dry cells.

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