Results 111 to 120 of about 48,360 (283)
Modified biochar is an effective adsorbent for removing pharmaceutical contaminants from water. Physical and chemical modifications enhance its surface area, porosity, and functionality, enabling multiple adsorption mechanisms. These synergistic interactions improve removal efficiency.
Ebrahim Tangestani +3 more
wiley +1 more source
Diversity and Functional Analysis of the FeMo-Cofactor Maturase NifB
One of the main hurdles to engineer nitrogenase in a non-diazotrophic host is achieving NifB activity. NifB is an extremely unstable and oxygen sensitive protein that catalyzes a low-potential SAM-radical dependent reaction.
Simon Arragain +5 more
doaj +1 more source
Homoacetogenesis as an alternative hydrogen sink in the rumen : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Microbiology and Genetics at Massey University, Palmerston North, New Zealand. [PDF]
Ruminant livestock contribute significantly to global greenhouse gas emissions. This is due to microorganisms, known as methanogens that generate methane from hydrogen and carbon dioxide during feed fermentation in the rumen.
Raju, Preeti
core
User-friendly mathematical model for the design of sulfate reducing H2/CO2 fed bioreactors [PDF]
The paper presents three steady-state mathematical models for the design of H2/CO2 fed gas-lift reactors aimed at biological sulfate reduction to remove sulfate from wastewater. Models 1A and 1B are based on heterotrophic sulfate reducing bacteria (HSRB),
G. Esposito, P. Lens, PIROZZI, FRANCESCO
core +1 more source
Citation: 'methanogens' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.M03879 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire +1 more source
Transplanting the pathway engineering toolbox to methanogens.
Biological methanogenesis evolved early in Earth's history and was likely already a major process by 3.5 Ga. Modern methanogenesis is now a key process in virtually all anaerobic microbial communities, such as marine and lake sediments, wetland and rice ...
Zhe Lyu, W. Whitman
semanticscholar +1 more source
Significant environmental preference between type I and type II methanotrophs is regulated by soil ion concentration (pH and electrical conductivity) in wetlands. Type II methanotrophs (Methylocystis, etc.) contributes more to soil methane oxidation than type I methanotrophs.
Kun He +5 more
wiley +1 more source
Methanogens dominate methanotrophs and act as a methane source in aquaculture pond sediments
Aquaculture pond sediments act as hotspots for methane (CH4) emissions; however, knowledge gaps on the regulation of microorganisms hinder our further understanding of methane dynamics in aquaculture pond sediment.
Hongda Liu +8 more
doaj +1 more source
This study was performed to investigate the initial colonization of metabolically active methanogens and subsequent changes in four fractions: the rumen solid-phase (RS), liquid-phase (RL), protozoa-associated (RP), and epithelium-associated (RE) from 1 ...
Zuo Wang +7 more
doaj +1 more source
Modeling of breath methane concentration profiles during exercise on an ergometer [PDF]
We develop a simple three compartment model based on mass balance equations which quantitatively describes the dynamics of breath methane concentration profiles during exercise on an ergometer.
Jandacka, Martin +9 more
core +2 more sources

