Heap leaching technology—current state, innovations, and future directions: a review

Y Ghorbani, JP Franzidis, J Petersen - Mineral Processing and …, 2016 - Taylor & Francis
Heap leaching is a well-established extractive metallurgical technology enabling the
economical processing of various kinds of low-grade ores, which could not otherwise be …

Microbe-mediated transformation of metal sulfides: Mechanisms and environmental significance

Z Su, X Li, Y Xi, T Xie, Y Liu, B Liu, H Liu, W Xu… - Science of The Total …, 2022 - Elsevier
Microorganisms play a key role in the natural circulation of various constituent elements of
metal sulfides. Some microorganisms (such as Thiobacillus ferrooxidans) can promote the …

Environmental risk implications of metals in sludges from waste water treatment plants: the discovery of vast stores of metal-containing nanoparticles

F Tou, Y Yang, J Feng, Z Niu, H Pan, Y Qin… - … science & technology, 2017 - ACS Publications
Nanoparticle (NP) assessment in sludge materials, although of growing importance in eco-
and biotoxicity studies, is commonly overlooked and, at best, understudied. In the present …

Soil salt leaching under different irrigation regimes: HYDRUS-1D modelling and analysis

WZ Zeng, C Xu, JW Wu, JS Huang - Journal of Arid Land, 2014 - Springer
Field irrigation experiments were conducted in the Hetao Irrigation District of Inner Mongolia,
China, to study the effects of irrigation regimes on salt leaching in the soil profile. The data …

Acid bioleaching of select sphalerite samples of variable Zn-and Fe-contents

H Abdollahi, M Mirmohammadi, S Ghassa… - Hydrometallurgy, 2022 - Elsevier
Abstract Mesophilic bacteria (Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans,
and Leptospirillum ferrooxidans) and moderate thermophiles (Acidithiobacillus caldus and …

[HTML][HTML] Bioleaching of Zn from sphalerite using Leptospirillum ferriphilum isolate: effect of temperature and kinetic aspects

VP Sundramurthy, B Rajoo, NR Srinivasan… - Applied Biological …, 2020 - Springer
Biological methods for leaching of nonferrous and noble metals from its sulfide ores are
widely applied at industrial enterprises of different countries. This process is based on the …

[HTML][HTML] A Systems-Based Approach for Cyanide Overproduction by Bacillus megaterium for Gold Bioleaching Enhancement

J Aminian-Dehkordi, SM Mousavi… - … in Bioengineering and …, 2020 - frontiersin.org
With the constant accumulation of electronic waste, extracting precious metals contained
therein is becoming a major challenge for sustainable development. Bacillus megaterium is …

Novel oily sludge treatment process: Based on biological leaching

S Li, G Chen, D Yu, Y Qiu, E Guo, Y Yu - Journal of Water Process …, 2022 - Elsevier
The performance of bioleaching technology was studied for the demulsification, oil content
reduction and efficient removal of heavy metals from oily sludge. A method was established …

Effects of intermittent liquid addition on heap hydrodynamics

WAM Fernando, I Ilankoon, MN Chong, TH Syed - Minerals Engineering, 2018 - Elsevier
Heap leaching is a well-known mineral processing technique, whereby crushed low grade
ore is used for valuable metal extraction. The technique is typically used to extract precious …

The effects of packing shape and structure on liquid distribution of heap leaching systems: Addition of PCBs as non-ore particles

WAM Fernando, I Ilankoon, SG Krishnan, V Chokshi - Hydrometallurgy, 2019 - Elsevier
Heap leaching is a hydrometallurgical processing technique where the effective mass
transfer between the multiple phases dictates the process efficiency. It is employed to …