Isolation and identification of an ammonia-producing copper leaching strainChinese Full Text
WANG Hong-jiang;WU Ai-xiang;XIONG You-wei;HU Kai-jian;HUANG Ming-qing;State Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines,University of Science and Technology Beijing;
Abstract: An ammonia-producing strain isolated from Inner Mongolia in north China,which is capable of decomposing urea,was designated as strain JAT-1. Identification results show that this milky strain has a smooth and humid surface,and it is Gram-negative and rod-shaped in 0. 2- 0. 4 μm × 1. 5- 2. 0 μm. Based on the 16 S r DNA sequencing and the phylogenetic tree,this strain was identified as Providencia Sp. By means of the analysis of growth characteristics,the optimal growth condition was achieved when the concentration of sodium citrate as a carbon source was 10 g·L- 1,the concentration of urea as a nitrogen source was 20 g·L- 1,the p H value was between 8. 0 and 9. 5,and the inoculum concentration was 20%. Alkaline copper ore bioleaching experiment in a shake flask with the ammonia-producing strain yielded a copper leaching efficiency of 42. 38% in 144 h. This result indicates that this strain has the potential for leaching the alkaline copper ore.
- DOI：
10.13374/j.issn1001-053x.2014.11.003
- Series：
- Subject：
- Classification Code：
TD925.5
- Mobile Reading
Read on your phone instantly
Step 1Scan QR Codes
"Mobile CNKI-CNKI Express" App
Step 2Open“CNKI Express”
and click the scan icon in the upper left corner of the homepage.
Step 3
Scan QR Codes
Read this article on your phone.
- HTML
- CAJ Download
- PDF Download
Download the mobile appuse the app to scan this coderead the article.
Tips: Please download CAJViewer to view CAJ format full text.
Download: 184 Page: 1443-1447 Pagecount: 5 Size: 353K
Citation Network
Related Literature
- Similar Article
- Reader Recommendation
- Associated Author