Next Article in Journal
Passive Tracking of the Electrochemical Impedance of a Hybrid Electric Vehicle Battery and State of Charge Estimation through an Extended and Unscented Kalman Filter
Previous Article in Journal
A Review: Carbon Additives in LiMnPO4- and LiCoO2-Based Cathode Composites for Lithium Ion Batteries
Article Menu

Export Article

Open AccessArticle
Batteries 2018, 4(4), 51; https://doi.org/10.3390/batteries4040051

Leaching of Metals from Waste Silver Oxide-Zinc Button Cell Batteries by Aspergillus niger

1
Department of Microbiology, Savitribai Phule Pune University, Pune 411007, India
2
Department of Power Mechanical Engineering, National Tsing Hua University, No. 101, Sec. 2, Kuang Fu Rd., Hsinchu 30013, Taiwan
*
Author to whom correspondence should be addressed.
Received: 23 August 2018 / Revised: 12 October 2018 / Accepted: 15 October 2018 / Published: 17 October 2018
(This article belongs to the Special Issue Recovery of Materials for Batteries)
Full-Text   |   PDF [1808 KB, uploaded 17 October 2018]   |  

Abstract

Leaching of metals from waste button cell batteries was explored in this study. Aspergillus niger spent medium was used for metal leaching to avoid toxicity of metals toward microbial cells. Process parameters including time, temperature, shaking speed, and volume of the spent medium were optimized. We obtained 100% leaching of zinc and silver in six hours at 60 °C and 100 rpm using 15 mL spent medium. The use of spent medium supported the indirect leaching process. The organic acid produced by fungi acts as a lixiviant, aiding the metal leaching in this process. View Full-Text
Keywords: button cell batteries; silver; Zinc; Aspergillus niger; culture supernatant; two-step bioleaching button cell batteries; silver; Zinc; Aspergillus niger; culture supernatant; two-step bioleaching
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Jadhav, U.; Su, C.-H.; Chakankar, M.; Hocheng, H. Leaching of Metals from Waste Silver Oxide-Zinc Button Cell Batteries by Aspergillus niger. Batteries 2018, 4, 51.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Batteries EISSN 2313-0105 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top