Results 41 to 50 of about 270,626 (338)

Improving the performance of bioelectrochemical sulfate removal by applying flow mode

open access: yesMicrobial Biotechnology, 2023
Treatment of wastewater contaminated with high sulfate concentrations is an environmental imperative lacking a sustainable and environmental friendly technological solution.
Shixiang Dai   +5 more
doaj   +1 more source

Cell-specific rates of sulfate reduction and fermentation in the sub-seafloor biosphere

open access: yesFrontiers in Microbiology, 2023
Microorganisms in subsurface sediments live from recalcitrant organic matter deposited thousands or millions of years ago. Their catabolic activities are low, but the deep biosphere is of global importance due to its volume.
Marion Jaussi   +6 more
doaj   +1 more source

The pH and pCO2 dependence of sulfate reduction in shallow-sea hydrothermal CO2 – venting sediments (Milos Island, Greece)

open access: yesFrontiers in Microbiology, 2013
Microbial sulfate reduction is a dominant process of organic matter mineralization in sulfate-rich anoxic environments at neutral pH. Recent studies have demonstrated sulfate reduction in low pH environments, but investigations on the microbial activity ...
Elisa eBayraktarov   +7 more
doaj   +1 more source

Oxygen respiration and polysaccharide degradation by a sulfate-reducing acidobacterium

open access: yesNature Communications, 2023
Sulfate-reducing microorganisms represent a globally important link between the sulfur and carbon cycles. Recent metagenomic surveys expanded the diversity of microorganisms putatively involved in sulfate reduction underscoring our incomplete ...
Stefan Dyksma, Michael Pester
doaj   +1 more source

Monitoring microbial sulfate reduction in porous media using multipurpose electrodes [PDF]

open access: yesJournal of Geophysical Research: Biogeosciences, 2010
There is growing interest in the application of electrode‐based measurements for monitoring microbial processes in the Earth using biogeophysical methods. In this study, reactive electrode measurements were combined to electrical geophysical measurements during microbial sulfate reduction occurring in a column of silica beads saturated with natural ...
Zhang, Chi   +3 more
openaire   +3 more sources

Key factors influencing rates of heterotrophic sulfate reduction in active seafloor hydrothermal massive sulfide deposits

open access: yesFrontiers in Microbiology, 2015
Hydrothermal vents are thermally and geochemically dynamic habitats, and the organisms therein are subject to steep gradients in temperature and chemistry. To date, the influence of these environmental dynamics on microbial sulfate reduction has not been
Kiana Laieikawai Frank   +6 more
doaj   +1 more source

Microbial processes and bacterial populations associated to anaerobic treatment of sulfate-rich wastewater [PDF]

open access: yes, 2010
A pilot-scale (1.2 m3) anaerobic sequencing batch biofilm reactor (ASBBR) containing mineral coal for biomass attachment was fed with sulfate-rich wastewater at increasing sulfate concentrations. Ethanol was used as the main organic source.
Chinalia, Fabio A.   +4 more
core   +1 more source

Isotopic insights into microbial sulfur cycling in oil reservoirs

open access: yesFrontiers in Microbiology, 2014
Microbial sulfate reduction in oil reservoirs (biosouring) is often associated with secondary oil production where seawater containing high sulfate concentrations (~28 mM) is injected into a reservoir to maintain pressure and displace oil.
Christopher G Hubbard   +8 more
doaj   +1 more source

A comprehensive sulfur and oxygen isotope study of sulfur cycling in a shallow, hyper-euxinic meromictic lake [PDF]

open access: yes, 2016
Mahoney Lake is a permanently anoxic and sulfidic (euxinic) lake that has a dense plate of purple sulfur bacteria positioned at mid-water depth (∼7 m) where free sulfide intercepts the photic zone. We analyzed the isotopic composition of sulfate (δ34SSO4
Gilhooly, William P., III   +2 more
core   +1 more source

Effect of sulfate on low-temperature anaerobic digestion [PDF]

open access: yes, 2014
The effect of sulfate addition on the stability of, and microbial community behavior in, low-temperature anaerobic expanded granular sludge bed-based bioreactors was investigated at 15°C.
Abdul eAl-Raei   +7 more
core   +2 more sources

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