Conversion of saline waste-water and gaseous carbon dioxide to (bi)carbonate salts, hydrochloric acid and desalinated water for on-site industrial utilization

2019 ◽  
Vol 4 (1) ◽  
pp. 141-150 ◽  
Author(s):  
Saad Dara ◽  
Arman Bonakdarpour ◽  
Meghan Ho ◽  
Rubenthran Govindarajan ◽  
David P. Wilkinson
Keyword(s):  
Waste Water ◽  
Carbon Dioxide ◽  
Hydrochloric Acid ◽  
Saline Water ◽  
Desalinated Water ◽  
Saline Waste ◽  
Industrial Utilization ◽  
Gaseous Carbon Dioxide ◽  
Carbonate Salts

Conversion of gaseous carbon dioxide and saline water into hydrochloric acid and carbonate salts using a modified electrodialysis approach.

The ν1 Band of Carbon Dioxide in Pressure-Induced Absorption. II. Density and Temperature Dependence of the Intensity; Critical Phenomena

1972 ◽  
Vol 50 (12) ◽  
pp. 1355-1362 ◽  
Author(s):  
L. Mannik ◽  
J. C. Stryland
Keyword(s):  
Carbon Dioxide ◽  
Absorption Coefficient ◽  
Density Range ◽  
Induced Absorption ◽  
Lennard Jones ◽  
Molecular Potential ◽  
Band Profile ◽  
Gaseous Carbon Dioxide ◽  
Interaction Term ◽  
Path Lengths

The ν1 band of gaseous carbon dioxide has been studied in pressure-induced absorption at temperatures of ~ 190, ~ 300, and ~ 470 K, over a density range from 0.5 to 300 amagat, and with path lengths from 0.007 to 56 m. The observed temperature variation of the binary absorption coefficient can be satisfactorily accounted for only by adding a quadrupole–quadrupole interaction term to the usual Lennard–Jones model for the inter-molecular potential. The band profile is in agreement with the theory of quadrupole-induced absorption. There is some increase in the intensity of the band near the critical point due to the divergence of the correlation length. A very marked increase in the intensity is possibly prevented by the "cancellation effect".

Experimental and Numerical Modeling of Gaseous Carbon Dioxide Injecting Into Aqueous Water in Bottle Filler System

2001 ◽  
Author(s):  
Y. H. Zheng ◽  
R. S. Amano
Keyword(s):  
Carbon Dioxide ◽  
Numerical Modeling ◽  
Tap Water ◽  
Co2 Injection ◽  
Operating Characteristics ◽  
Two Phase ◽  
Carbonation Process ◽  
Filling System ◽  
Gas System ◽  
Gaseous Carbon Dioxide

Abstract An efficient enhancement of the carbonation rate in the bottle filling stage can substantially increase the production in beverage industries. The bottle filling system currently used in most of the manufacturers can still be improved for a better performance of carbonation by designing the injection tube system. This paper reports on an experimental and numerical mass transfer modeling that can simulate the dissolution process of gaseous carbon dioxide into aqueous water in the bottle filler system. In order to establish the operating characteristics of the bottle filler system, an ordinary tap water and pure carbon dioxide were used as the liquid-gas system. The two-phase numerical modeling was developed that can serve as a framework for the continuous improvement of the design of the carbonation process in the bottle filler system. For an optimal design of CO2 injection tube and flow conditions, a computational fluid dynamics (CFD) approach is one of the most power tools. However, since only limited experimental data are available in the open literature to verify the computational results, an experiment study was performed to obtain measurements of CO2 level, temperature, and pressure during the carbonation process in the bottle filled with liquid. Both experimental and numerical studies of various flow condition and different sizes of injection tube are presented in this paper.

Very low-pressure pyrolysis of chloroethane-2,2,2-d3. Kinetics of hydrochloric acid-d elimination and the effect of carbon dioxide inert bath gas

1981 ◽  
Vol 85 (26) ◽  
pp. 4106-4108 ◽  
Author(s):  
Joseph S. Francisco ◽  
Jeffrey I. Steinfeld ◽  
Keith D. King ◽  
Robert G. Gilbert
Keyword(s):  
Carbon Dioxide ◽  
Hydrochloric Acid ◽  
Low Pressure ◽  
Kinetics Of

Water use, productivity and forage quality of the halophyteAtriplex nummulariagrown on saline waste water in a desert environment

1998 ◽  
Vol 38 (1) ◽  
pp. 45-62 ◽  
Author(s):  
Edward Glenn ◽  
Rene Tanner ◽  
Seiichi Miyamoto ◽  
Kevin Fitzsimmons ◽  
John Boyer
Keyword(s):  
Waste Water ◽  
Water Use ◽  
Forage Quality ◽  
Desert Environment ◽  
Saline Waste

scholarly journals Purification, Characterization, and Potential of Saline Waste Water Remediation of a Polyextremophilicα-Amylase from an Obligate HalophilicAspergillus gracilis

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Imran Ali ◽  
Ali Akbar ◽  
Benjawan Yanwisetpakdee ◽  
Sehanat Prasongsuk ◽  
Pongtharin Lotrakul ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Activity ◽  
Column Chromatography ◽  
Specific Activity ◽  
Single Band ◽  
Water Remediation ◽  
Saline Waste ◽  
Sds Page ◽  
Nacl Concentration ◽  
Burk Plot

An obligate halophilicAspergillus graciliswhich was isolated from a hypersaline man-made saltern from Thailand was screened for its potential of producing extracellularα-amylase in the previous studies. In this study theα-amylase was extracted and purified by the help of column chromatography using Sephadex G-100 column. Presence of amylase was verified by SDS-PAGE analysis, showing a single band of approximately 35 kDa. The specific activity of the enzyme was found to be 131.02 U/mg. The Lineweaver-Burk plot showed theVmaxandKmvalues of 8.36 U/mg and 6.33 mg/mL, respectively. The enzyme was found to have the best activity at 5 pH, 60°C, and 30% of NaCl concentration, showing its polyextremophilic nature. The use of various additives did not show much variation in the activity of enzyme, showing its resilience against inhibitors. The enzyme, when tested for its use for synthetic waste water remediation by comparing its activity with commercial amylase in different salt concentrations showed that theα-amylase fromA. graciliswas having better performance at increasing salt concentrations than the commercial one. This shows its potential to be applied in saline waste water and other low water activity effluents for bioremediation.

Effect of high pressure gaseous carbon dioxide on the germination of bacterial spores

2004 ◽  
Vol 91 (2) ◽  
pp. 209-213 ◽  
Author(s):  
S. Furukawa ◽  
T. Watanabe ◽  
T. Tai ◽  
J. Hirata ◽  
N. Narisawa ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Bacterial Spores ◽  
Gaseous Carbon Dioxide

Salen ligand complexes as electrocatalysts for direct electrochemical reduction of gaseous carbon dioxide to value added products

RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3581-3589 ◽  
Author(s):  
Surya Singh ◽  
Bedika Phukan ◽  
Chandan Mukherjee ◽  
Anil Verma
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Reduction ◽  
Value Added ◽  
Salen Complexes ◽  
Gaseous Carbon Dioxide ◽  
Salen Ligand ◽  
Centrosymmetric Molecule ◽  
Value Added Products

CO2, being a linear and centrosymmetric molecule, is very stable, and the electrochemical reduction of CO2 requires energy. However, the salen complexes are found to be very efficient to minimize overpotential as compared to their metal counterparts.

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