bacterial leaching
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2022 ◽  
Vol 7 (1) ◽  
pp. 11-16
Author(s):  
Iveta Štyriaková

Biotechnological treatment of non-metallics is based on bacterial leaching of raw material and dissolution of Fe. Bacterial iron dissolution ability is dependent on various physicochemical factors as temperature, acidity of solutions, redox potential, rapidity of water circulation and presence of organic sources. The Fe content in the quartz sands and feldspar samples by the biological leaching decreased as much as 60% and by subsequent using of electromagnetic separation of feldspars, the decrease of Fe content in 74% was achieved. However, the application of magnetic separation of quartz sands after bioleaching resulted in total iron removal of 93% and in such combined way prepared product contained 0.024 % of Fe2O3. Achieved results on iron removal point to the fact that combination of leaching and magnetic separation enables to obtain product usable in glass and ceramic industry.


2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Hana KOVAŘÍKOVÁ ◽  
Iva JANÁKOVÁ ◽  
Vladimír ČABLÍK ◽  
Věra VRLÍKOVÁ

As for geology, Zlatý Chlum is a highly varied locality with frequent metaquarzit, amphibolite, quartz as well as deposits of sulphideores. This work deals with the use of Acidithiobacillus ferrooxidans to bioleach polymetallic ores (Cu, al, Zn, and Fe) fromthis locality. Leaching lasted for 5 weeks in a bioreactor that ensured optimal conditions for bioleaching. The results imply that theexperiments were successful, leaching 54% of Fe, 28% of Cu and 47% of Al.


2020 ◽  
Vol 81 (12-4) ◽  
Author(s):  
Sanat Sharipov ◽  
Bakhodir Mukhiddinov

2019 ◽  
Vol 220 ◽  
pp. 483-492 ◽  
Author(s):  
Tannaz Naseri ◽  
Nazanin Bahaloo-Horeh ◽  
Seyyed Mohammad Mousavi

2019 ◽  
Vol 53 (4) ◽  
pp. 2105-2113 ◽  
Author(s):  
Abu Mohd Naser ◽  
Solaiman Doza ◽  
Mahbubur Rahman ◽  
Kazi Matin Ahmed ◽  
Mohammed Shahid Gazi ◽  
...  

2019 ◽  
Vol 42 (4) ◽  
pp. 145-154 ◽  
Author(s):  
Yousuke NAKAMURA ◽  
Masanari OTSUKA ◽  
Shinsuke HARUTA ◽  
Daisuke OMORI

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