Immobilization of Acidithiobacillus ferrooxidans on Cotton Gauze for the Bioleaching of Waste Printed Circuit Boards

2015 ◽  
Vol 177 (3) ◽  
pp. 675-688 ◽  
Author(s):  
Hongyan Nie ◽  
Nengwu Zhu ◽  
Yanlan Cao ◽  
Zhiguo Xu ◽  
Pingxiao Wu
Keyword(s):  
Acidithiobacillus Ferrooxidans ◽  
Printed Circuit Boards ◽  
Circuit Boards ◽  
Cotton Gauze ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards

scholarly journals Characteristics of Metals Leached from Waste Printed Circuit Boards Using Acidithiobacillus ferrooxidans

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 224
Author(s):  
Jinsung An
Keyword(s):  
Acidithiobacillus Ferrooxidans ◽  
Printed Circuit Boards ◽  
Cost Effective ◽  
Low Grade ◽  
Circuit Boards ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards ◽  
Iron Oxidizing Bacteria ◽  
Valuable Metals ◽  
Leaching Characteristics

The aim of this study was to compare leaching characteristics of metals from printed circuit boards (PCBs), taken from waste electrical and electronic equipment in the presence and in the absence of the iron-oxidizing bacteria, Acidithiobacillus ferrooxidans. A. ferrooxidans not only increases the leached concentration of Cu from the PCBs, but also inhibits the components of the 0K medium and leached Cu from forming precipitates such as libethenite (Cu2(PO4)(OH)), thereby assisting Cu recovery from the PCBs. In addition, the leached concentration of Pb from PCBs decreased in the presence of A. ferrooxidans, due to Pb forming amorphous precipitates. It is expected that Pb is not highly toxic to A. ferrooxidans. Consequently, A. ferrooxidans can be used as a cost-effective and environmentally friendly way to leach out valuable metals from PCBs as low-grade urban ore.

Bioleaching waste printed circuit boards by Acidithiobacillus ferrooxidans and its kinetics aspect

2014 ◽  
Vol 173 ◽  
pp. 24-30 ◽  
Author(s):  
Yuankun Yang ◽  
Shu Chen ◽  
Shicheng Li ◽  
Mengjun Chen ◽  
Haiyan Chen ◽  
...  
Keyword(s):  
Acidithiobacillus Ferrooxidans ◽  
Printed Circuit Boards ◽  
Circuit Boards ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards

LEACHING OF METALS FROM WASTE PRINTED CIRCUIT BOARDS (WPCBs) USING SULFURIC AND NITRIC ACIDS

2014 ◽  
Vol 13 (10) ◽  
pp. 2601-2607 ◽  
Author(s):  
Jae-chun Lee ◽  
Manoj Kumar ◽  
Min-Seuk Kim ◽  
Jinki Jeong ◽  
Kyoungkeun Yoo
Keyword(s):  
Printed Circuit Boards ◽  
Circuit Boards ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards
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