| Title |
Bioleaching of Gold and Silver from Waste Printed Circuit Boards by Pseudomonas balearica SAE1 Isolated from an e-Waste Recycling Facility
|
|---|---|
| Published in |
Current Microbiology, October 2017
|
| DOI | 10.1007/s00284-017-1365-0 |
| Pubmed ID | |
| Authors |
Anil Kumar, Harvinder Singh Saini, Sudhir Kumar |
| Abstract |
Indigenous bacterial strain Pseudomonas balearica SAE1, tolerant to e-waste toxicity was isolated from an e-waste recycling facility Exigo Recycling Pvt. Ltd., India. Toxicity tolerance of bacterial strain was analyzed using crushed (particle size ≤150 µm) waste computer printed circuit boards (PCBs)/liter (L) of culture medium. The EC50 value for SAE1 was 325.7 g/L of the e-waste pulp density. Two-step bioleaching was then applied to achieve the dissolution of gold (Au) and silver (Ag) from the e-waste. To maximize precious metal dissolution, factors including pulp density, glycine concentration, pH level, and temperature were optimized. The optimization resulted in 68.5 and 33.8% of Au and Ag dissolution, respectively, at a pH of 9.0, a pulp density of 10 g/L, a temperature of 30 °C, and a glycine concentration of 5 g/L. This is the first study of Au and Ag bioleaching using indigenous e-waste bacteria and its analysis to determine e-waste toxicity tolerance. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 133 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 133 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 29 | 22% |
| Student > Master | 17 | 13% |
| Researcher | 15 | 11% |
| Student > Bachelor | 12 | 9% |
| Student > Doctoral Student | 4 | 3% |
| Other | 14 | 11% |
| Unknown | 42 | 32% |
| Readers by discipline | Count | As % |
|---|---|---|
| Environmental Science | 21 | 16% |
| Biochemistry, Genetics and Molecular Biology | 12 | 9% |
| Engineering | 12 | 9% |
| Chemical Engineering | 7 | 5% |
| Materials Science | 6 | 5% |
| Other | 20 | 15% |
| Unknown | 55 | 41% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 October 2017.
All research outputs
#15,481,147
of 23,005,189 outputs
Outputs from Current Microbiology
#1,416
of 2,423 outputs
Outputs of similar age
#203,965
of 325,897 outputs
Outputs of similar age from Current Microbiology
#19
of 36 outputs
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