Melissa Gugulethu Gonte, Dr. Thandazile Moyo
This study investigates the early-stage process flow and reactor sequencing to optimize gold extraction from waste printed circuit boards using thiosulphate leaching. The primary objective is to enhance the efficiency of gold recovery by systematically analyzing the effects of various parameters on the leaching process. A series of experiments were conducted to evaluate the impact of ammonia concentration, thiosulphate concentration, and solid-liquid ratio on gold extraction rates. The methodology involved a detailed analysis of leaching kinetics and the use of fitted surface plots to visualize the interactions between the variables. Results reveal significant variations in gold extraction efficiency, with optimal conditions identified that maximize recovery. The findings indicate that careful control of reagent concentrations and operational conditions can significantly improve the leaching process, providing insights into sustainable waste management practices in the field of chemical engineering. This research contributes valuable knowledge to the ongoing pursuit of environmentally friendly approaches to e-waste recycling, with the potential to enhance gold recovery processes while minimizing harmful environmental impacts.
@article{b0ae5eb1-93e4-4bae-bc0d-6d6ca71c92e2,
title={2023 Gonte Thiosulfate leaching of waste printed circuit boards},
author={Melissa Gugulethu Gonte and Dr. Thandazile Moyo},
year={2026},
language={en}
}TY - JOUR TI - 2023 Gonte Thiosulfate leaching of waste printed circuit boards AU - Melissa Gugulethu Gonte AU - Dr. Thandazile Moyo PY - 2026 LA - en ER -
Mudila Dhanunjaya Rao, Kamalesh K. Singh
Rapid global technological development has resulted in increased production of electronic waste, which presents both challenges and opportunities in r
Jaising Gadekar
E-Waste is a term used to cover items of all types of electrical and electronic equipment (EEE) and its parts that have been discarded by the owner as
Ionela Birloaga, Ida De Michelis, Francesco Ferella, Mihai Buzatu, Francesco Vegliò
This study investigates the hydrometallurgical recovery of copper and gold from waste printed circuit boards (WPCBs) using a sequential oxidative leac