What can be made from recycled e-waste?
The circuit boards contain a wide range of precious metals like gold, silver, platinum and palladium. These can be recycled into jewellery or mobile phone components. Mobile phones: The precious metals found in phones can be reused in other electronic products.
What is being extracted from e-waste?
Recycling is the process of extracting resources of value from e-waste. Here the equipment is disassembled and the valuable components are recovered and are used for manufacturing new products. This method is extensively treated in the next chapter.
What valuable materials are found in e-waste?
The electronic devices that surround you on a daily basis are built with many components that contain precious metals of gold, silver, copper, and palladium.
What two valuable elements are extracted from e-waste?
Abstract. The recycling of metals such as gold and copper from discarded end-of-life electronic waste (e-waste or WEEE) is an important aspect to the development of environmentally benign manufacturing processes that exhibit circularity in materials flow.
What are three products made from e-waste?
E-waste is a popular, informal name for electronic products nearing the end of their “useful life.” Computers, televisions, VCRs, stereos, copiers, and fax machines are common electronic products. Many of these products can be reused, refurbished, or recycled.
What are the most common e-waste items?
The most common hazardous electronic items include LCD desktop monitors, LCD televisions, Plasma Televisions, TVs and computers with Cathode Ray Tubes. E-waste contains hundreds of substances, of which many are toxic. This includes mercury, lead, arsenic, cadmium, selenium, chromium, and flame retardants.
How can we extract metals from e-waste?
There are multiple approaches investigated in the literature to extract the metals from electronic waste. The methods include smelting, pyrometallurgical, vacuum pyrolysis, hydrometallurgical, and microalgal treatment, electrowinning, electrodeposition, and electroextraction.
How are precious metals extracted from e-waste?
Procedures for extracting precious metals: Hydrometallurgical process: In hydrometallurgical processes, valuable metals contained in e-waste are first leached into acid or alkali solutions, and then concentrated by using various methods like precipitation, cementation and solvent extraction.