Results 1 to 10 of about 200,132 (163)

2,2-Bis(4-Hydroxyphenyl)-1-Propanol—A Persistent Product of Bisphenol A Bio-Oxidation in Fortified Environmental Water, as Identified by HPLC/UV/ESI-MS [PDF]

open access: yesToxics, 2021
Biodegradation of bisphenol A in the environmental waters (lake, river, and sea) has been studied on the base of fortification of the samples taken and the biodegradation products have been analyzed using HPLC/UV/ESI-MS.
Małgorzata Drzewiecka   +3 more
doaj   +2 more sources

Effect of Carbon Sources on Pyrite-Arsenopyrite Concentrate Bio-oxidation and Growth of Microbial Population in Stirred Tank Reactors [PDF]

open access: yesMicroorganisms, 2021
Tank bio-oxidation is a biohydrometallurgical technology widely used for metal recovery from sulfide concentrates. Since carbon availability is one of the key factors affecting microbial communities, it may also determine the rate of sulfide concentrate ...
Aleksandr Bulaev   +3 more
doaj   +2 more sources

Remediation of Manganese-Contaminated Coal-Mine Water Using Bio-Sorption and Bio-Oxidation by the Microalga Pediastrum duplex (AARLG060): A Laboratory-Scale Feasibility Study [PDF]

open access: yesFrontiers in Microbiology, 2019
Acidification occurs as a result of acid mine drainage after the oxidative weathering of metal sulfides. The acidic condition corrodes other toxic elements from the soil and becomes distributed around the operating site.
Jakkapong Thongpitak   +2 more
doaj   +2 more sources

Ample Arsenite Bio-Oxidation Activity in Bangladesh Drinking Water Wells: A Bonanza for Bioremediation? [PDF]

open access: yesMicroorganisms, 2019
Millions of people worldwide are at risk of arsenic poisoning from their drinking water. In Bangladesh the problem extends to rural drinking water wells, where non-biological solutions are not feasible. In serial enrichment cultures of water from various Bangladesh drinking water wells, we found transfer-persistent arsenite oxidation activity under ...
Hassan Z   +5 more
europepmc   +7 more sources

Investigation of gold content in the bio-oxidation process [PDF]

open access: yesE3S Web of Conferences, 2023
In this study, the process of bio-oxidation of flotation concentrate from the flotation of gold-sulfide ores and sorption cyanidation of the bio-oxidation product were analyzed, and the content of dispersed gold in pyrite, arsenopyrite, and carbonaceous ...
Nurmurodov Tulkin   +5 more
doaj   +2 more sources

Gold Recovery from Cyanidation Tailings Using Flotation Process [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
The gold recovery from cyanidation tailings was only 4.01% with the general flotation process, the surface analyses of flotation products were performed, and the results showed that the poor gold recovery with general flotation process was due to the ...
Huang Zhongsheng, Yang Tianzu
doaj   +1 more source

Application of Bio-Oxidation in Leaching of a Low-Grade Primary Gold Ore in Inner Mongolia

open access: yesKuangchan zonghe liyong, 2022
Bio-oxidation leaching test was conducted on a low-grade primary gold mine in Inner Mongolia. The acid consumption of ore, cyanidation, bio-oxidation stirred leaching, column leaching, add sulfur and sulfur concentrate to reduce acid consumption , and ...
Yongzhang Jian
doaj   +1 more source

Prediction for Air Input of Bio-oxidation Tank Based on Dynamic Data Driven [PDF]

open access: yesJisuanji gongcheng, 2018
For the open-loop control,strong time delay and low prediction precision in the air input system of bio-oxidation tank,a new method based on the dynamic data driven for predicting air input of bio-oxidation tank is proposed in this paper.Firstly,a state ...
SUN Zhenhua,NAN Xinyuan,CAI Xin
doaj   +1 more source

Manganese Pollution and Its Remediation: A Review of Biological Removal and Promising Combination Strategies

open access: yesMicroorganisms, 2022
Manganese (Mn), as a cofactor of multiple enzymes, exhibits great significance to the human body, plants and animals. It is also a critical raw material and alloying element.
Rongrong Wu   +7 more
doaj   +1 more source

Shifts in the Microbial Populations of Bioleach Reactors Are Determined by Carbon Sources and Temperature

open access: yesBiology, 2023
In the present study, the effect of additional carbon sources (carbon dioxide and molasses) on the bio-oxidation of a pyrite–arsenopyrite concentrate at temperatures of 40–50 °C was studied, and novel data regarding the patterns of the bio-oxidation of ...
Aleksandr Bulaev   +6 more
doaj   +1 more source

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