Content may be subject to copyright.This is the peer reviewed version of the following article: [Exploring process options to enhance metal dissolution in b... ...This is the peer reviewed version of the following article: [Exploring process options to enhance metal dissolution in bioleaching of Indian Ocean nodules. Journal of Chemical Technology & Biotechnology 79, 5 p512-517 (2004)], which has been published in final form at https://doi.org/10.1002/jctb.1014. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions: https://authorservices.wiley.com/author-resources/Journal-Authors/licensing/self-archiving.html#3.