Metal Recovery from Electronic Waste: Biological Versus Chemical Leaching For Recovery Of Copper And Gold (IHE Delft PhD Thesis Series)

Synopsis

Waste electrical and electronic equipment (WEEE) generation is a global problem. Despite the growing awareness and deterring legislation, most of the WEEE is disposed improperly, i.e. landfilled or otherwise shipped overseas, and treated in sub-standard conditions. Informal recycling of WEEE has catastrophic effects on humans and the environment. WEEE contains considerable quantities of valuable metals such as base metals, precious metals and rare earth elements (REE). Metal recovery from WEEE is conventionally carried out by pyrometallurgical and hydrometallurgical methods.

In this PhD research, novel metal recovery technologies from WEEE are investigated. Using acidophilic and cyanide-generating bacteria, copper and gold were removed from crushed electronic waste with removal efficiencies of 98.4 and 44.0%, respectively. The leached metals in solution were recovered using sulfidic precipitation and electrowinning separation techniques. Finally, a techno-economic assessment of the technology was studied. This research addresses the knowledge gap on two metal extraction approaches, namely chemical and biological, from a secondary source of metals. The essential parameters of the selective metal recovery processes, scale-up potential, techno-economic and sustainability assessment have been studied.

Copyright:

2019

Book Details

Book Quality:

Publisher Quality

Book Size:

250 Pages

ISBN-13:

9780429657023

Related ISBNs:

9780429023903, 9780367087050

Publisher:

CRC Press

Date of Addition:

09/09/23

Copyrighted By:

Arda Işildar

Adult content:

No

Language:

English

Has Image Descriptions:

No

Categories:

Nonfiction, Science, Technology

Submitted By:

Bookshare Staff

Usage Restrictions:

This is a copyrighted book.