Results 41 to 50 of about 25,000,871 (351)

Techno-economic and life cycle assessment of an integrated hydrothermal carbonization system for sewage sludge

Journal of Cleaner Production, 2020
The need of more effective solutions for sewage sludge management is twofold: i) to alleviate the overall operating costs for wastewater treatment and ii) to ensure proper utilization/disposal considering environmental legislation.
Enrique Medina-Martos, I. Istrate, J. Villamil, José-Luis Gálvez-Martos, J. Dufour, Á. F. Mohedano   +5 more
semanticscholar   +1 more source

‘Silent’ Dome Emplacement into a Wet Volcano: Observations from an Effusive Eruption at White Island (Whakaari), New Zealand in Late 2012

Geosciences, 2020
The 2012–2016 White Island (Whakaari) eruption sequence encompassed six small explosive events that included one steam driven and five explosive phreato-magmatic eruptions.
Arthur Jolly, Corentin Caudron, Társilo Girona, Bruce Christenson, Roberto Carniel   +4 more
doaj   +1 more source

Cody hydrothermal system [PDF]

, 1982
The hot springs of Colter's Hell are the surface manifestations of a much larger hydothermal system. That system has been studied to define its extent, maximum temperature, and mechanism of operation. The study area covers 2700 km/sup 2/ (1040 mi/sup 2/) in northwest Wyoming.
openaire   +2 more sources

Peptide Synthesis in Early Earth Hydrothermal Systems [PDF]

Astrobiology, 2009
We report here results from experiments and thermodynamic calculations that demonstrate a rapid, temperature-enhanced synthesis of oligopeptides from the condensation of aqueous glycine. Experiments were conducted in custom-made hydrothermal reactors, and organic compounds were characterized with ultraviolet-visible procedures.
Lemke, KH, Bird, DK, Rosenbauer, RJ
openaire   +4 more sources

Deep high-temperature hydrothermal circulation in a detachment faulting system on the ultra-slow spreading ridge

Nature Communications, 2020
Coupled magmatic and tectonic activity plays an important role in high-temperature hydrothermal circulation at mid-ocean ridges. The circulation patterns for such systems have been elucidated by microearthquakes and geochemical data over a broad spectrum
C. Tao, W. Seyfried, R. Lowell, Yunlong Liu, Jin Liang, Zhikui Guo, K. Ding, Huatian Zhang, Jia Liu, Qiu Lei, I. Egorov, S. Liao, Minghui Zhao, Jianping Zhou, X. Deng, Huaiming Li, Wang Hanchuang, Cai Wei, Guoyin Zhang, Hongwei Zhou, Jian Lin, Jian Lin, Wei Li   +22 more
semanticscholar   +1 more source

Thermal remanence of the ∼0.6 kya Rangitoto volcano eruption, Auckland volcanic field (New Zealand) inferred from self-potential and CO₂ flux measurements

Volcanica
Rangitoto volcano is the most recent (⁓0.6 ka) and voluminous volcano in New Zealand's Auckland Volcanic Field (AVF). In this study, we investigate the status of its hydrothermal system using a combination of self-potential (SP) and CO2 gas flux ...
Alutsyah Luthfian, Anthony Finizola, Agnes Mazot, Ludmila Adam, Rachel Gusset, Jennifer Eccles   +5 more
doaj   +1 more source

Role of Stress in the Origin of Life

Life, 2022
The article shows the compatibility of the concept of thermodynamic inversion (TI) of the origin of life with the theory of stress in (micro)biology. According to the proposed TI concept, the first microorganisms on Earth were formed through an effective
Vladimir Kompanichenko, Oleg Kotsyurbenko   +1 more
doaj   +1 more source

A new terrestrial active mineralizing hydrothermal system associated with ore-bearing travertines in Greece (northern Euboea Island and Sperchios area)

, 2017
The northwestern Euboea Island and the neighboring part of the mainland in eastern Central Greece, i.e. Sperchios area, contain several hot springs and active thermogenic travertine deposits, which are the surface manifestations of an active hydrothermal
C. Kanellopoulos, P. Mitropoulos, E. Valsami-Jones, P. Voudouris   +3 more
semanticscholar   +1 more source

Decoration of titania nanofibres with anatase nanoparticles as efficient photocatalysts for decomposing pesticides and phenols [PDF]

, 2012
Using a series of partial phase transitions, an effective photocatalyst with fibril morphology was prepared. The catalytic activities of these materials were tested against phenol and herbicide in water. Both H-titanate and TiO2-(B) fibres decorated with
Frost, Ray, Locke, Ashley, Martens, Wayde, Paul, Blain   +3 more
core   +2 more sources

Decoupled temperature and pressure hydrothermal synthesis of carbon sub-micron spheres from cellulose

Nature Communications, 2022
The temperature and pressure of the hydrothermal process occurring in a batch reactor are typically coupled. Herein, we develop a decoupled temperature and pressure hydrothermal system that can heat the cellulose at a constant pressure, thus lowering the
Shijie Yu, Xinyue Dong, Peng Zhao, Zhicheng Luo, Zhuohua Sun, Xiaoxiao Yang, Qinghai Li, Lei Wang, Yang Zhang, Hui Zhou   +9 more
semanticscholar   +1 more source