Results 81 to 90 of about 7,630 (226)

Removing cyanide by mixed culture at liquid media with variation in pH and cyanide concentration

MATEC Web of Conferences, 2018
This preliminary study aims to investigate removal efficiency of cyanide by mixed culture Thiobacillus sp. and Clostridium sp. in a liquid media stone mineral salt solution (SMSs) with controlled condition. This research variation were pH 5, 7, and 9 and
Valentina Corry, Hadisoebroto Rositayanti, Rinanti Astri   +2 more
doaj   +1 more source

Aplicação de técnicas eletroquímicas no estudo da dissolução oxidativa da covelita (CuS) por Thiobacillus ferrooxidans Electrochemical techniques applied to study the oxidative dissolution of the covellite: CuS by Thiobacillus ferrooxidans

Química Nova, 2002
Among the copper sulphides, chalcopyrite (CuFeS2), covellite (CuS) and chalcocite (Cu2S) are the most important source of minerals for copper mining industry.
Christiane Medina Teixeira, Ivan Ramires, Oswaldo Garcia Júnior, Antonio Carlos Guastaldi   +3 more
doaj   +1 more source

Recent Progress in CO2 Conversion: An Overview of Catalytic Strategies for Sustainable Fuel and Chemical Synthesis

SmartMat, Volume 6, Issue 6, December 2025.
This review systematically outlines recent advances in the catalytic strategies for converting CO₂ into valuable products, including photocatalysis, electrocatalysis, CO2 hydrogenation, photothermal catalysis, non‐thermal plasma, and biocatalytic processes.
An Zhang, Yanming Cai, Liang Guo, Chao Wang, Qingbo Wa, Yanping Xu, Jian Zhou, Hongshuang Fan, Ziyun Li, Xinyue Long, Jiabei Tang, Zijian Li, Li Zhai, Zhenyu Shi, Wei Zhai, Yuhui Tian, Shuai Bi, Hao Wei, Mingliang Hu, Yang Xu, Yiran Zhang, Yu Zhang, Ruiying Ding, Junjun Li, Shuangqun Chen, Jianfeng Huang, Zhanxi Fan, Xingchen Jiao, Guigao Liu, Haiqing Wang, Haifeng Tian, Jingyu Pang, Kuncheng Zhang, Weisong Liu, Huijuan Cui, Lingling Zhang, Xiaofu Sun, Jianling Zhang, Dan Ren, Sheng Zhang, Lu Qiao, Zhe Weng, Hongmei Li, Min Liu, Miao Zhong, Lei Wang, Jun Gu, Hao Bin Wu, Bolong Huang, Weijia Zhou, Chuan Xia, Min‐Rui Gao, Changbin Zhang, Rong Cao, Wei Chen, Yuan‐Biao Huang, Yongye Liang, Ya‐Qian Lan, Guoxiong Wang, Baoyu Xia, Yujie Xiong, Xinbin Ma, Tongbu Lu, Jinhua Ye, Yi Xie, Buxing Han, Jiawei Liu, Zhicheng Zhang, Hua Zhang   +68 more
wiley   +1 more source

Current understanding of electroautotrophy and its relevance in astrobiology‐related research

mLife, Volume 4, Issue 5, Page 473-493, October 2025.
Abstract Electroautotrophy—the use of extracellular electrons as the primary energy source for autotrophic metabolism—remains understudied compared to photoautotrophy and chemoautotrophy. Its occurrence in deep‐earth and deep‐sea environments suggests profound implications for astrobiology, yet electroautotrophic microorganisms remain poorly explored ...
Quansheng Wang, Maggie C. Y. Lau Vetter
wiley   +1 more source

An investigation into the use of batch experiments in the determination of the kinetics of ferrous-iron oxidation by Leptospirillum ferrooxidans

, 2000
Bibliography: leaves 60-64.The objectives of this research were to investigate the effect of temperature and pH on the bacterial ferrous-iron oxidation by Leptospirillum ferrooxidans in batch culture and compare these results with those previously ...
Dempers, Christian John Nicholas
core  

Cyanide residues biotreatment and their relation with public health

Revista Facultad Nacional de Salud Pública, 2010
Objective: To propose a bio-treatment for cyanide residues generated by medico-legal procedures and to identify risk factors from handling. Methodology: cyanide residues, from the Institute of Legal Medicine, Medellin, were characterized by their ...
Carmen L. Jaramillo C, Judith Betancur U, Ruth M. Agudelo C, Carmen L. Jaramillo C, Judith Betancur U, Ruth M. Agudelo C, Carmen L. Jaramillo C, Ruth M. Agudelo C, Judith Betancur U   +8 more
doaj  

Combined DNA/RNA Amplicon Sequencing and Metatranscriptomics Reveals Microbial‐Driven Nutrient Transformations and Core Taxa in Agriculturally Impacted Sediments

Environmental Microbiology Reports, Volume 17, Issue 5, October 2025.
Excess loads of nitrogen and phosphorus in agriculturally impacted watersheds alter microbial metabolism in sediments. A multi‐omic investigation found nitrate reduction coupled to sulphur oxidation was prominent where inorganic fertilisers were dominant, whilst a manure‐impacted site revealed biomarkers of nitrosative stress due to incomplete ...
Nicholas W. Falk, Ian G. Droppo, Ken G. Drouillard, Christopher G. Weisener   +3 more
wiley   +1 more source

Iron and sulfur utilisation patterns in chemolithotrophic cultures

, 2012
In this study, the growth and behaviour of chemolithotrophic organisms in the presence of both ferrous and tetrathionate ions was investigated. Given the impact of chemolithotrophic metabolic activity upon the chemistry and leaching of mineral sulfide ...
Shiers, Denis
core  

Interrelationship of hydrology, microbial colonisation and hydrometallurgy in a simulated chalcopyrite heap leach

, 2008
Includes bibliographical references (leaves 104-115).Chalcopyrite is the most abundant primary copper sulphide mineral found worldwide. As copper grades of ores available for extraction decrease, heap bioleaching is gaining interest as a potential ...
Spurr, Nicholas Robert Louis
core  

The microbial ecology of acidic environments [PDF]

The microflora of two acidic environments was investigated using analysis of 16S rDNA amplified by the polymerase chain reaction (PCR) from environmental DNA.
Simmons, Susan
core