Recycling of Electronic Waste using Hydrometallurgical Techniques Olga Vasilyeva, V. Keerthi, Asif Ali Khan, Dikshit Sharma, Jayanti Ballabh, Amit Dutt, Sanjay Bhatnagar, Yogendra Kumar and Ammar H. Shnain E3S Web Conf., 581 (2024) 01019 Published online: 21 October 2024 DOI: 10.1051/e3sconf/202458101019