Results 61 to 70 of about 37,757 (227)

Waste activated sludge high‐rate treatment of septage: Biodegradability studies and contact phase trials towards a cleaner environment

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The waste activated sludge high‐rate (WASHR) process, developed in our previous study, is used for septic wastewater treatment. This high‐rate contact stabilization pre‐treatment uses typical waste streams found in wastewater treatment plants to reduce a portion of the loadings on the main treatment trains.
Arman Shirali, Melody Blythe Johnson, Mehrab Mehrvar   +2 more
wiley   +1 more source

Anaerobic methane oxidation and aerobic methane production in an east African great lake (Lake Kivu) [PDF]

Journal of Great Lakes Research, 2018
Abstract We investigated CH4 oxidation in the water column of Lake Kivu, a deep meromictic tropical lake with CH4-rich anoxic deep waters. Depth profiles of dissolved gases (CH4 and N2O) and a diversity of potential electron acceptors for anaerobic CH4 oxidation (NO3−, SO42−, Fe and Mn oxides) were determined during six field campaigns between June ...
Roland, Fleur, Morana, Cédric, Darchambeau, François, Crowe, Sean A., Thamdrup, Bo, Descy, Jean-Pierre, Borges, Alberto   +6 more
openaire   +3 more sources

Recent Advances in Conjugated Microporous Polymers for Photocatalysis: Mechanism, Synthesis and Applications

Exploration, EarlyView.
Conjugated microporous polymers (CMPs) have attracted more and more attention as new photocatalysts due to their unique advantages such as high performance, long stability and strong light absorption. This review summarizes the application of CMPs as a photocatalyst in recent years and introduces the catalytic mechanism.
Dun Zhou, Kongqing Zhang, Xiaobai Li, Yongpeng Liu, Liang Yao, Hongwei Ma   +5 more
wiley   +1 more source

A mathematical model of aerobic methane oxidation coupled to denitrification

Environmental Technology, 2017
Aerobic methanotrophic bacteria use methane as their only source of energy and carbon. They release organic compounds that can serve as electron donors for co-existing denitrifiers. This interaction between methanotrophs and denitrifiers is known to contribute to nitrogen losses in natural environments and has also been exploited by researchers for ...
openaire   +2 more sources

Stratification of aerobic methane‐oxidizing organisms in Lake Mendota, Madison, Wisconsin1 [PDF]

Limnology and Oceanography, 1980
The microflora responsible for methane oxidation are stratified in a narrow band in the thermocline of Lake Mendota where dissolved oxygen is low during summer. Oxygen sensitivity of growth of these organisms or of methane oxidation cannot account for their absence from the epilimnion because oxygen does not inhibit either process under in situ ...
Susan M. Harrits, Richard S. Hanson
openaire   +1 more source

Study on Oxidation Rate and Isotope Fractionation of Methane in Bohai Sea Sediments

Yankuang ceshi, 2018
BACKGROUND:The Bohai Sea contains a large amount of oil and gas, the main component of which is methane. The influence of natural or human factors will cause its leakage and migration and then have a negative impact on the environment.
CHEN Yu-feng, ZHENG Xiu-li, LI Jing, HE Xing-liang, LIU Chang-ling, MENG Qing-guo, QIN De-di, ZHANG Pei-yu   +7 more
doaj   +1 more source

Sulfur and Methane-Oxidizing Microbial Community in a Terrestrial Mud Volcano Revealed by Metagenomics

Microorganisms, 2020
Mud volcanoes are prominent geological structures where fluids and gases from the deep subsurface are discharged along a fracture network in tectonically active regions.
Andrey V. Mardanov, Vitaly V. Kadnikov, Alexey V. Beletsky, Nikolai V. Ravin   +3 more
doaj   +1 more source

A temperate river estuary is a sink for methanotrophs adapted to extremes of pH, temperature and salinity [PDF]

, 2016
River Tyne (UK) estuarine sediments harbour a genetically and functionally diverse community of methane-oxidizing bacteria (methanotrophs), the composition and activity of which were directly influenced by imposed environmental conditions (pH, salinity ...
Gray, Neil D., Osborne, Kate A., Sherry, Angela, Sidgwick, Frances R., Talbot, Helen M.   +4 more
core   +2 more sources

Effects of Pyrolysis Control Parameters on the Structural Properties of Biomass‐Derived Activated Carbon Materials and Their Energy Applications

The Chemical Record, EarlyView.
Tubular pyrolysis synthesis is a widespread method to produce activated carbons (ACs). This review focuses on the different controlling parameters of the tubular pyrolysis synthesis method and their influence on the performance of synthesized ACs, thereby considering both experimental aspects and the use of plant‐based biomasses (PBBs) as feedstock ...
Meenal Gupta, Maria F. Gaele, Pasquale Gargiulo, Yogesh Kumar, Valeria Califano, Aniello Costantini, Tonia M. Di Palma   +6 more
wiley   +1 more source

Waterfalls enhance regional methane emissions by enabling dissolved methane to bypass microbial oxidation

Communications Earth & Environment
River waters are significant sources of atmospheric methane whose local emissions increase with river slope and turbulence. However, when integrated regionally, the amount of dissolved methane released to the atmosphere is uninfluenced by local changes ...
Rebecca L. Rust, Annastasia Frizzell, John D. Kessler   +2 more
doaj   +1 more source