ABSTRACT
Recycling e-waste is a challenging process because of the complex structure of e-waste containing a diverse range of materials. Several technologies have been developed to recycle e-waste such as pyrometallurgy, hydrometallurgy, bio-metallurgy and a combination of those. However, there are challenges associated with each method, including the requirement of a certain pre-treatments. This chapter provides a critical review of different e-waste recycling technologies including various pre-treatment steps with a particular focus on novel recycling technologies. Furthermore, it provides a comparative analysis with those of conventional technologies including recent development and challenges. A discussion is also made in this chapter on different commercial and new recycling technologies. Most importantly, viewpoints are given on the future advancement of e-waste recycling technologies. This chapter shows that a great deal of commitment and contribution by the researchers has gradually led towards the development of numerous sustainable e-waste recycling technologies globally. Based on the literature, it can be further concluded that future e-waste recycling technologies would be more eco-friendly, cost-effective and efficient by implementing an integrated recycling process accompanied by various recycling technologies.
