Bioleaching of copper from tailings by fermentation broths of Aspergillus niger in pellet form

LI Guangyue; DIAO Ningning; WANG Yongdong; DU Kang; ZHANG Zhenyuan

doi:10.11949/j.issn.0438-1157.20141047

您当前的位置：

首页 >

文章列表页 >

Bioleaching of copper from tailings by fermentation broths of Aspergillus niger in pellet form

更新时间：2025-12-10

- Bioleaching of copper from tailings by fermentation broths of Aspergillus niger in pellet form
- CIESC Journal Issue 2, Pages: 717-722(2015)
- 作者机构：
  
  1. 南华大学铀矿冶生物技术国防重点学科实验室,湖南,衡阳,421001
  2. 南华大学核资源工程学院,湖南,衡阳,421001
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20141047
  CLC： F18
- Online First：05 February 2015，
  
  Published：05 February 2015
- 稿件说明：
移动端阅览
LI Guangyue, DIAO Ningning, WANG Yongdong, et al. Bioleaching of copper from tailings by fermentation broths of Aspergillus niger in pellet form[J]. CIESC Journal, 2015, (2): 717-722.
DOI：

LI Guangyue, DIAO Ningning, WANG Yongdong, et al. Bioleaching of copper from tailings by fermentation broths of Aspergillus niger in pellet form[J]. CIESC Journal, 2015, (2): 717-722. DOI： 10.11949/j.issn.0438-1157.20141047.

摘要

尾砂中含有大量的金属

是一种潜在的可利用资源。旨在研发一种从铜尾砂中回收铜的生物浸出方法。利用正交设计

通过摇瓶试验

研究培养温度、发酵时间、接种量及培养基成分对黑曲霉菌丝球形态的影响

进而研究不同菌丝球形态的黑曲霉发酵液对尾砂中铜的浸出。研究表明

铜的浸出率随着黑曲霉菌丝球直径的减小而升高。在温度30℃

接种量0.8%(OD600=0.1)

马铃薯-蔗糖含量30%

发酵时间65 h的优化发酵条件下

获得大量表面光滑、直径为0.96 mm的菌丝球;利用该条件下的发酵液

在30℃

180 r·min-1条件下浸出3 d

铜的浸出率达83.25%。

Abstract

Owing to the substantial amounts of metals embodied in tailings

they are potential viable sources of metals. This work aims at developing a technique to microbially recover copper present in tailings. Based on orthogonal design

the effects of different variables

such as temperature

fermentation time

inoculum size and medium components

on pellet morphology of A. niger were investigated in shake flasks. Leaching of copper from its tailings was conducted using fermentation broths of Aspergillus niger with different pellet morphology. Copper extraction gradually increased with reduction in pellet diameter of A. niger. A large amount of compact smooth pellets with a diameter of 0.96 mm were obtained under the optimum fermentation conditions of 30℃

0.8% inoculum size(OD600=0.1)

30% potato-sucrose contents

65 h fermentation time. After 3 days of leaching

copper extraction reached 83.25% with the fermentation broths aforementioned at 30℃

180 r·min-1.

关键词

Keywords

references

Views

342

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

DMFA-based multi-objective optimization for fermentation processes

Carbon source analysis, mutagenesis and kinetics of Serratia marcescens producing prodigiosin

Physics-informed spatio-temporal graph convolutional network for fermentation processes

Multi objective optimization of flow and heat transfer characteristics of modified manifold microchannel heat sink based on machine learning

Study on performance enhancement and cold retention characteristics of solid packed bed cold energy storage

Related Author

GAO Yan

ZHAO Zhonggai

LIU Fei

RONG Guangjian

ZHANG Youhong

CHEN Yan

CHEN Jie

HUANG Meng

Related Institution

Key Laboratory of Advanced Control for Light Industry Processes, Ministry of Education, Jiangnan University

School of Chemistry Environmental Engineering, Wuhan Institute of Technology

School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Key Laboratory for Green Chemical Process of Ministry of Education

Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Jiangnan University

School of Mechanical and Power Engineering, Zhengzhou University

⁰