Reaction of Amino Acids in a Supercritical Water-Flow Reactor Simulating Submarine Hydrothermal Systems

2003 ◽  
Vol 76 (6) ◽  
pp. 1171-1178 ◽  
Author(s):  
Md. Nazrul Islam ◽  
Takeo Kaneko ◽  
Kensei Kobayashi
Keyword(s):  
Amino Acids ◽  
Water Flow ◽  
Supercritical Water ◽  
Flow Reactor ◽  
Hydrothermal Systems ◽  
Submarine Hydrothermal Systems

Stability of Amino Acids and Related Compounds in Simulated Submarine Hydrothermal Systems

2012 ◽  
Vol 85 (5) ◽  
pp. 624-630 ◽  
Author(s):  
Hironari Kurihara ◽  
Yoshinori Takano ◽  
Takeo Kaneko ◽  
Yumiko Obayashi ◽  
Kensei Kobayashi
Keyword(s):  
Amino Acids ◽  
Hydrothermal Systems ◽  
Submarine Hydrothermal Systems ◽  
Related Compounds

CONSIDERATION OF BUOYANCE FORCES WHEN SIMULATING SUPERCRITICAL WATER FLOW IN VERTICAL TUBES

2017 ◽  
Author(s):  
Nataliia Fialko ◽  
◽  
Julii Sherenkovskiy ◽  
Nataliia Meranova ◽  
Serhii Aleshko ◽  
...  
Keyword(s):  
Computer Simulation ◽  
Water Flow ◽  
Supercritical Water ◽  
Flow Characteristics ◽  
Buoyancy Forces ◽  
Vertical Tubes

The results of computer simulation of supercritical water flow in tubes are presented. The regularities of the influence of buoyancy forces on the flow characteristics are investigated.

An inclined plug-flow reactor design for supercritical water oxidation

2018 ◽  
Vol 343 ◽  
pp. 351-361 ◽  
Author(s):  
Zhong Chen ◽  
Hongzhen Chen ◽  
Xiaoling Liu ◽  
Chunlan He ◽  
Datian Yue ◽  
...  
Keyword(s):  
Supercritical Water ◽  
Water Oxidation ◽  
Flow Reactor ◽  
Plug Flow ◽  
Reactor Design ◽  
Plug Flow Reactor ◽  
Supercritical Water Oxidation

Dosing ratios for reduced bromate formation by dissolved ozone dosing

2005 ◽  
Vol 5 (5) ◽  
pp. 35-40
Author(s):  
A.W.C. van der Helm ◽  
P.W.M.H. Smeets ◽  
E.T. Baars ◽  
L.C. Rietveld ◽  
J.C. van Dijk
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Water Flow ◽  
Flow Reactor ◽  
Treatment Plant ◽  
Drinking Water Treatment ◽  
Water Treatment Plant ◽  
Limiting Factor ◽  
Drinking Water Treatment Plant ◽  
Side Stream

Bromate formation experiments were carried out in a 100 l/h bench-scale dissolved ozone plug flow reactor (DOPFR) with natural filtered water from the drinking water treatment plant Leiduin of Amsterdam Water Supply at gross ozone dosages of 0.7–3.4 mg/l. In the DOPFR, ozone is dosed by intensively mixing a dissolved ozone water flow (side stream) with a test water flow (mainstream). The side stream is pre-treated to remove bromide and DOC and to lower the pH. For full-scale application of the DOPFR concept, it is most cost effective to apply the smallest possible side stream. This research is done to establish the effect of decreasing the ratio of the dissolved ozone side stream to the mainstream from 1:10 to 1:25, by increasing the ozone concentration and decreasing the flow of the side stream. The results show that the dosing ratio has no influence on the bromate formation in the ozone dosing range of 0.7–1.4 mg/l. The gross ozone dosages that are currently applied at the drinking water treatment plant Leiduin are 0.8–1.0 mg/l. This means that for application of dissolved ozone dosing at Leiduin the amount of ozone that can be dissolved in the side stream will be the limiting factor for the minimal flow of the dissolved ozone side stream.

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