Results 71 to 80 of about 15,415 (270)

Sunlight‐Driven Green Synthesis of Platinum Nanoparticles From Double‐Vacancy Halide Perovskite Precursors for Methanol Reforming

Chemistry – A European Journal, EarlyView.
ABSTRACT The development of synthetic procedures for preparing metal nanoparticles with controlled size using sunlight opens new avenues toward more sustainable methods with lower energy consumption. Herein, we propose the use of double‐vacancy halide perovskites as precursors for engineering highly crystalline and small platinum nanoparticles (< 3 nm)
Kevin Mego, Saray Chacón‐Ruiz, Pedro Ruiz‐Campos, Herme G. Baldoví, Pedro Atienzar   +4 more
wiley   +1 more source

Economic and environmental implications of the development of UASB reactors in Mexico for sustainable industrial wastewater treatment

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The objective of this work is to demonstrate that the inclusion of an up‐flow anaerobic sludge bed (UASB reactor) within an industrial wastewater treatment plant reduces the plant's investment and operating costs compared to a system based solely on conventional complete‐mix activated sludge (CMAS), operating under the same design principles ...
Juan Manuel Morgan‐Sagastume, Adalberto Noyola   +1 more
wiley   +1 more source

Iron(III)‐loaded cation exchange resin: A dual approach for aqueous H2S removal and biogas desulphurization

The Canadian Journal of Chemical Engineering, EarlyView.
Left: Desulphurization method application. Right: Novel desulphurization method. Abstract The presence of hydrogen sulphide (H2S) in biogas poses significant environmental and operational challenges due to its corrosive and toxic properties. Thus, this study aimed to develop a dual‐function desulphurization system using a cation exchange resin (CIER ...
Matheus Damásio Thrun, Renata Mello Giona, Eduardo Eyng, Eduardo Borges Lied, Laércio Mantovani Frare, Ismael Laurindo Costa Junior, Ilton José Baraldi   +6 more
wiley   +1 more source

a low-activity cold seep in the Larsen B area, western Weddell Sea, Antarctica [PDF]

, 2008
First videographic indication of an Antarctic cold seep ecosystem was recently obtained from the collapsed Larsen B ice shelf, western Weddell Sea (Domack et al., 2005).
G. Bohrmann, Kasten, S., Fischer, David, Pape, T., K. Knittel, Graffe, Dorothea, Nöthen, K., Fischer, D., Niemann, H., Nöthen, Kerstin, Graffe, D., D. Fischer, D. Graffe, O. Heilmayer, Heilmayer, Olaf, K. Nöthen, Montiel, A., H. Niemann, Gutt, Julian, S. Kasten, A. Montiel, Kasten, Sabine, Heilmayer, O., Gutt, J., Boetius, Antje, Heilmeyer, O., Boetius, A., Pfeifer, Kerstin, A. Boetius, J. Gutt, Knittel, K., Bohrmann, G., T. Pape   +32 more
core  

Waste activated sludge high‐rate treatment of septage: Stabilization phase trials and comparison with winery wastewater treatment

The Canadian Journal of Chemical Engineering, EarlyView.
Performance evaluation of the waste activated sludge high‐rate (WASHR) process for septic wastewater treatment. Abstract The waste‐activated sludge high‐rate (WASHR) process is evaluated as a batch‐mode pre‐treatment for actual septage using a high‐rate contact stabilization (HRCS) approach.
Arman Shirali, Melody Blythe Johnson, Mehrab Mehrvar   +2 more
wiley   +1 more source

Exergy‐Based Simulation and Optimization of Multiagent MSW Gasification for Sustainable Energy Recovery Using Aspen Plus

Energy Science &Engineering, EarlyView.
ABSTRACT Thermochemical gasification is one of the most efficient methods for producing solid waste synthesis gas. Therefore, to predict and analyze the process of gasification of municipal solid waste (MSW) in a downdraft fixed‐bed gasification reactor with a thermal capacity of 2.1 kW, a comprehensive numerical modeling approach based on Gibbs free ...
Mohammad Reza Gharib, Payam Danesh, Ali Delarami   +2 more
wiley   +1 more source

Thermochemical oxidation of methane by manganese oxides in hydrothermal sediments

Communications Earth & Environment, 2023
Microbial anaerobic oxidation of methane coupled to the reduction of Mn(IV)-oxides, typically MnO2, derived from continental weathering and riverine transport has been proposed as a globally important sink of methane.
Qin Huang, Shao-Yong Jiang, Dao-Hui Pi, Kurt O. Konhauser, Xing-Ping Wen, Liu-Yi Lu, Hao Yan   +6 more
doaj   +1 more source

Nitrite-driven anaerobic methane oxidation by oxygenic bacteria [PDF]

Nature, 2010
Only three biological pathways are known to produce oxygen: photosynthesis, chlorate respiration and the detoxification of reactive oxygen species. Here we present evidence for a fourth pathway, possibly of considerable geochemical and evolutionary importance. The pathway was discovered after metagenomic sequencing of an enrichment culture that couples
Ettwig, K.F., Butler, M.K., Le Paslier, D., Pelletier, E., Mangenot, S., Kuypers, M.M.M., Schreiber, F., Dutilh, B.E., Zedelius, J., de Beer, D., Gloerich, J., Wessels, H.C.T., van Alen, T., Luesken, F.A., Wu, M.L., van de Pas-Schoonen, K.T., den Camp, H., Janssen-Megens, E.M., Francoijs, K.J., Stunnenberg, H., Weissenbach, J., Jetten, M.S.M., Strous, M., Strous, M.   +23 more
openaire   +9 more sources

Catabolic Pathways and Enzymes Involved in Anaerobic Methane Oxidation

, 2019
# Springer International Publishing AG 2017 M. Boll (ed.), Anaerobic Utilization of Hydrocarbons, Oils, and Lipids, Handbook of Hydrocarbon and Lipid Microbiology, DOI 10.1007/978-3-319-33598-8_3-1Microbes use two distinct catabolic pathways for life ...
Ermler, Ulrich, Scheller, Silvan, Shima, Seigo   +2 more
core   +1 more source

Waste to Hydrogen: Transforming Food Waste Into Biohythane (Bio‐H2 + Bio‐CH4) in a Two‐Stage Reactor With the Aid of a Metal‐Ion Catalyst

Energy Science &Engineering, EarlyView.
This study demonstrates a two‐stage catalytic bioreactor system that converts real food waste into high‐purity biohydrogen and biohythane. In Stage‐1, an enriched Clostridium thermocellum culture combined with Ni2+─Fe2+ bimetallic catalysis enhances hydrolysis efficiency and hydrogenase activity, resulting in a 77% increase in H2 yield and 75.8% purity
K. V. Sreedharan, Debabrata Barik, Ayyar Dinesh, D. Shanmugapriya, M. Santhamoorthy, N. Ashok   +5 more
wiley   +1 more source