Results 31 to 40 of about 2,517 (213)

Effects of Lysinibacillus sphaericus on Physicomechanical and Chemical Performance of OPC Blended with Natural Tuff and Pulverized Fly Ash

open access: yesAdvances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
This paper reports study findings on the use of Lysinibacillus sphaericus (at 1.0 × 107 cells/ml concentration) to enhance and improve the physicomechanical and chemical properties of blended Ordinary Portland Cement (OPC). Blending was done separately with pulverized fly ash (PFA) and natural pozzolana (volcanic tuff) at substitution levels of 10%, 20%
Kelvin Mwangi Wanjiku   +11 more
wiley   +1 more source

Influence Of Used Bacterial Culture On Zinc And Aluminium Bioleaching From Printed Circuit Boards

open access: yesNova Biotechnologica et Chimica, 2015
Bioleaching processes were used to solubilize metals (Cu, Ni, Zn and Al) from printed circuit boards (PCBs). In this study, a PCBs-adapted pure culture of Acidithiobacillus ferrooxidans, pure culture of Acidithiobacillus thiooxidans and PCBs-adapted ...
Mrazikova Anna   +4 more
doaj   +1 more source

Toxic Metal Recovery from Waste Printed Circuit Boards: A Review of Advanced Approaches for Sustainable Treatment Methodology

open access: yesAdvances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
The rapid advancement of technical advancements has resulted in the generation of substantial amount of electronic trash (e‐waste). The volume of e‐waste created, as well as the presence of both dangerous and beneficial elements, enhances the business potential of recovery and recycling significantly.
Murugesan Manikkampatti Palanisamy   +4 more
wiley   +1 more source

Bioleaching of low grade uranium ore containing pyrite using A. ferrooxidans and A. thiooxidans [PDF]

open access: yes, 2012
A process of uranium extraction from ore containing 3.1 % pyrite by bacterial leaching was investigated in shaken flasks during 90 days. The highest uranium recovery amounting to 85.1 % was obtained using binary mixture of Acidithiobacillus ferrooxidans ...
Klyushnikov, A. M., Umanskii, A. B.
core   +1 more source

Microbial diversity in heavy-metal polluted waters [PDF]

open access: yes, 2005
Indigenious water microflora as well as the presence of metal- and xenobiotic biotransforming bacteria were investigated in waters near the KCM Pb-Zn smelter, South Bulgaria.
Atanasova, Radostina   +5 more
core   +1 more source

Circular Economy and the Fate of Lithium Batteries: Second Life and Recycling

open access: yesAdvanced Energy and Sustainability Research, Volume 2, Issue 10, October 2021., 2021
The lithium−ion battery is the choice of the market for electrochemical energy storage. In the near future, the procurement of materials and disposal of end‐of‐life systems will become of paramount importance. It is necessary to develop the themes of recycling and reuse in a circular economy perspective.
Chiara Ferrara   +3 more
wiley   +1 more source

Microbial leaching of marmatite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans

open access: yesTransactions of Nonferrous Metals Society of China, 2006
The bioleaching of marmatite in shaken flasks was studied. After leaching for 29 days, the leaching ratio of zinc was 91%. Three kinds of bacteria, mixture-based bacteria, 9K-based bacteria and sulfur-based bacteria were used in marmatite leaching, of which the mixture-based bacteria have the best leaching result while the sulfur-based bacteria have ...
Jun WANG   +3 more
openaire   +1 more source

Sulfur enhancement effects for uranium bioleaching in column reactors from a refractory uranium ore

open access: yesFrontiers in Microbiology, 2023
The feasibility of sulfur enhancement for uranium bioleaching in column reactors was assessed with a designed mixed Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans and Leptospirillum ferriphilum from a refractory uranium ore.
Qian Li   +17 more
doaj   +1 more source

Effects of biodeterioration on the mechanical properties of concrete [PDF]

open access: yes, 2015
International audienceConcrete biodeterioration in sewers and structures subjected to environments rich in hydrogen sulfide has been related to the activity of sulfur oxidizing bacteria (SOB).
Bastidas-Arteaga, Emilio   +3 more
core   +4 more sources

High-throughput amplicon sequencing reveals distinct communities within a corroding concrete sewer system [PDF]

open access: yes, 2012
This study investigated the variation in microbially induced concrete corrosion communities at different circumferential locations of a real sewer pipe and the effects of a wastewater flooding event on the community.
Cho KS   +12 more
core   +1 more source

Home - About - Disclaimer - Privacy