Carbon dioxide

1 - 7 of 7 results

Effects of pH conditions on the biological conversion of carbon dioxide to methane in a hollow-fiber membrane biofilm reactor (Hf–MBfR) Carbon dioxide is one of the global warming gases. Utilization of a sustainable energy is one of the effective technologies for the mitigation of CO2 accumulation in the atmosphere. If renewable energy can be used for methane synthesis, H2 is converted to methane by reducing CO2. We investigated the Desalination 234 (2008)
Supercritical fluid extraction of uranium and thorium from solid matrices Supercritical fluid extraction (SFE) of uranium and thorium from solid matrices was carried out employing CO2. Direct dissolution and extraction of oxides of uranium viz. UO2 and U3O8 was performed. UO2 and U3O8 powders (0.02–0.05 g) along with 2 ml of TBP–HNO3 complex were taken in extraction vesse Desalination 232 (2008)
An atomic force microscope study of calcium carbonate adhesion to desalination process equipment: effect of anti-scale agent Whilst carbon dioxide is water soluble the system is somewhat complex and results in the presence of carbonate anions which interact with cations such as Ca2+ and Mg2+ present in seawater to form insoluble carbonates, especially at high temperatures. In multistage flash (MSF) desalination plants CO2 Desalination 220 (2008)
Selective permeation of CO2 through new facilitated transport membranes A new membrane material containing facilitated transport groups for carbon dioxide has been synthesized through the hydrolysis of polyvinylpyrrolidone (PVP) obtained by radical polymerization. The composite membrane was prepared with the hydrolysate as the top layer and microporous membrane as the s Desalination 145 (2002)
New ways to produce porous polymeric membranes by carbon dioxide foaming As a new solvent free method for membrane formation, we have investigated the foaming of high-Tg polymers. We report two different routes for the formation of open-microcellular and open-nanoporous membrane morphologies. Porosity is introduced by expansion of carbon dioxide saturated films and hollo Desalination 144 (2002)
Corrosion of condenser tube materials in distilled water This paper reports studies related to problems of vapour-side corrosion of copper/nickel alloys in multistage flash desalination plant. The main objective of the work was to obtain basic information and understanding of the corrosion behaviour of copper/nickel alloys in distilled water over a range Desalination 138 (2001)
Corrosion of copper-nickel alloys in pure water The paper describes a fundamental investigation of the corrosion behaviour of Cu-Ni-Fe-Mn alloys, containing nominally 10% Ni and 30% Ni, in distilled water. The study involved exposure of specimens to distilled water (1.5–7 µS/cm) at 20–80°C with and without injected carbon dioxide. At 20°C upon in Desalination 126 (1999)

Effects of pH conditions on the biological conversion of carbon dioxide to methane in a hollow-fiber membrane biofilm reactor (Hf–MBfR)

Carbon dioxide is one of the global warming gases. Utilization of a sustainable energy is one of the effective technologies for the mitigation of CO2 accumulation in the atmosphere. If renewable energy can be used for methane synthesis, H2 is converted to methane by reducing CO2. We investigated the

Desalination 234 (2008)

Supercritical fluid extraction of uranium and thorium from solid matrices

Supercritical fluid extraction (SFE) of uranium and thorium from solid matrices was carried out employing CO2. Direct dissolution and extraction of oxides of uranium viz. UO2 and U3O8 was performed. UO2 and U3O8 powders (0.02–0.05 g) along with 2 ml of TBP–HNO3 complex were taken in extraction vesse

Desalination 232 (2008)

An atomic force microscope study of calcium carbonate adhesion to desalination process equipment: effect of anti-scale agent

Whilst carbon dioxide is water soluble the system is somewhat complex and results in the presence of carbonate anions which interact with cations such as Ca2+ and Mg2+ present in seawater to form insoluble carbonates, especially at high temperatures. In multistage flash (MSF) desalination plants CO2

Desalination 220 (2008)

Selective permeation of CO2 through new facilitated transport membranes

A new membrane material containing facilitated transport groups for carbon dioxide has been synthesized through the hydrolysis of polyvinylpyrrolidone (PVP) obtained by radical polymerization. The composite membrane was prepared with the hydrolysate as the top layer and microporous membrane as the s

Desalination 145 (2002)

New ways to produce porous polymeric membranes by carbon dioxide foaming

As a new solvent free method for membrane formation, we have investigated the foaming of high-Tg polymers. We report two different routes for the formation of open-microcellular and open-nanoporous membrane morphologies. Porosity is introduced by expansion of carbon dioxide saturated films and hollo

Desalination 144 (2002)

Corrosion of condenser tube materials in distilled water

This paper reports studies related to problems of vapour-side corrosion of copper/nickel alloys in multistage flash desalination plant. The main objective of the work was to obtain basic information and understanding of the corrosion behaviour of copper/nickel alloys in distilled water over a range

Desalination 138 (2001)

Corrosion of copper-nickel alloys in pure water

The paper describes a fundamental investigation of the corrosion behaviour of Cu-Ni-Fe-Mn alloys, containing nominally 10% Ni and 30% Ni, in distilled water. The study involved exposure of specimens to distilled water (1.5–7 µS/cm) at 20–80°C with and without injected carbon dioxide. At 20°C upon in

Desalination 126 (1999)

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