Post by account_disabled on Feb 26, 2024 23:27:43 GMT -8
Desalination to help combat water shortages.
Safe and clean water is an essential resource for the survival of human beings. However, only % of the earth's water can be used for drinking. As a result, there is a shortage of drinking water for approximately one billion people around the world.
Now, a research team from the Korea Institute of Science and Technology (KIST) has developed a hybrid membrane distillation module that combines solar energy with hydrothermal heat pumps to reduce thermal energy consumption during the desalination process.
The membrane distillation method produces fresh water by utilizing the vapor pressure generated by the temperature difference between the flowing raw water and the treated water separated by a membrane. This approach has the advantage of low energy consumption, as fresh water can be generated at pressures of - bar, which is below atmospheric pressure, and temperatures of - degrees Celsius.
However, large-scal Brazil Mobile Number List e operation requires more thermal energy. Therefore, research studies are required to reduce the use of thermal energy for commercial operation.
The KIST research team developed a hydride desalination technology by conducting month-long on-site tests to compare the performance and economics of the system using solar energy and hydrothermal heat pumps. When the system operated in parallel with solar energy, production increased by % and energy use was reduced by % compared to the membrane distillation method using only hydrothermal heat pumps.
Furthermore, a comparison of thermal energy consumption based on the presence of solar energy showed that the process efficiency of the membrane distillation plant increased by up to % when solar energy was used as an additional heat source.
“The hybrid desalination technology we developed can be considered a method of supplying water to some industrial complexes and island areas facing water shortages, as it can reduce the energy consumption needed to generate fresh water,” said Dr. Kyung Guen Song. , who led the investigation. “We hope this technology will be applied to important water supply facilities in the Middle East and Southeast Asia, where the amount of annual solar radiation is times greater than in Korea.”
“Membrane distillation is not significantly affected by the quality of the raw water, so it will be possible to supply drinking water to areas where the quality of the raw water became highly contaminated due to water pollution and areas where the detection of heavy metals "It's high," he added.
Safe and clean water is an essential resource for the survival of human beings. However, only % of the earth's water can be used for drinking. As a result, there is a shortage of drinking water for approximately one billion people around the world.
Now, a research team from the Korea Institute of Science and Technology (KIST) has developed a hybrid membrane distillation module that combines solar energy with hydrothermal heat pumps to reduce thermal energy consumption during the desalination process.
The membrane distillation method produces fresh water by utilizing the vapor pressure generated by the temperature difference between the flowing raw water and the treated water separated by a membrane. This approach has the advantage of low energy consumption, as fresh water can be generated at pressures of - bar, which is below atmospheric pressure, and temperatures of - degrees Celsius.
However, large-scal Brazil Mobile Number List e operation requires more thermal energy. Therefore, research studies are required to reduce the use of thermal energy for commercial operation.
The KIST research team developed a hydride desalination technology by conducting month-long on-site tests to compare the performance and economics of the system using solar energy and hydrothermal heat pumps. When the system operated in parallel with solar energy, production increased by % and energy use was reduced by % compared to the membrane distillation method using only hydrothermal heat pumps.
Furthermore, a comparison of thermal energy consumption based on the presence of solar energy showed that the process efficiency of the membrane distillation plant increased by up to % when solar energy was used as an additional heat source.
“The hybrid desalination technology we developed can be considered a method of supplying water to some industrial complexes and island areas facing water shortages, as it can reduce the energy consumption needed to generate fresh water,” said Dr. Kyung Guen Song. , who led the investigation. “We hope this technology will be applied to important water supply facilities in the Middle East and Southeast Asia, where the amount of annual solar radiation is times greater than in Korea.”
“Membrane distillation is not significantly affected by the quality of the raw water, so it will be possible to supply drinking water to areas where the quality of the raw water became highly contaminated due to water pollution and areas where the detection of heavy metals "It's high," he added.