Thinh Le Xuan - Academia.edu (original) (raw)
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Central Academy of Fine Arts, Beijing,China
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Papers by Thinh Le Xuan
International Journal of Environmental Research and Public Health, 2021
Waste plastic today is a global threat. The rapid increase in global production and use has led t... more Waste plastic today is a global threat. The rapid increase in global production and use has led to increasing quantities of plastics in industrial and municipal waste streams. While in industrialized countries plastic waste is taken up by a waste management system and at least partly recycled, in low-income countries adequate infrastructure to collect and treat waste adequately is often not in place. This paper analyzes how plastic waste is handled in Vietnam, a country with a fast-growing industry and growing consumption. The recycling of plastic waste typically takes place in an informal context. To demonstrate this in more detail, two rural settlements—so-called craft villages—are taken as case studies. Technologies and processes for plastic recycling are described and related risks for human health and the environment are shown, as well as the potential for the improvement of this situation.
Pangasius (Pangasianodon hypophthalmus) (catfish) is a popular food in many countries around the ... more Pangasius (Pangasianodon hypophthalmus) (catfish) is a popular food in many countries around the world as well as in Viet Nam. At the same time, Pangasius also brings great economic benefits from the exportation. However, unplanned catfish farming leads to environmental degradation, susceptible to disease and high consumption of water. Modeling is a solution that helps to better control the biological processes in the pond, optimizes feed supply and water use. In this study research data collected, measured and analyzed from experimental catfish ponds in Can Tho, together with comparative data sets from other related studies were used to simulate the nutrition and development processes of fish in the ponds. The mathematic equations of plankton development processes were built and solved by the fourth-order RungeKutta method and coded in the Matlab programming language. The phytoplankton simulated and corrected at 28 and 30 o C showed that blue algae is the most grown algae (> 16 ...
International Journal of Environmental Research and Public Health, 2021
Waste plastic today is a global threat. The rapid increase in global production and use has led t... more Waste plastic today is a global threat. The rapid increase in global production and use has led to increasing quantities of plastics in industrial and municipal waste streams. While in industrialized countries plastic waste is taken up by a waste management system and at least partly recycled, in low-income countries adequate infrastructure to collect and treat waste adequately is often not in place. This paper analyzes how plastic waste is handled in Vietnam, a country with a fast-growing industry and growing consumption. The recycling of plastic waste typically takes place in an informal context. To demonstrate this in more detail, two rural settlements—so-called craft villages—are taken as case studies. Technologies and processes for plastic recycling are described and related risks for human health and the environment are shown, as well as the potential for the improvement of this situation.
Pangasius (Pangasianodon hypophthalmus) (catfish) is a popular food in many countries around the ... more Pangasius (Pangasianodon hypophthalmus) (catfish) is a popular food in many countries around the world as well as in Viet Nam. At the same time, Pangasius also brings great economic benefits from the exportation. However, unplanned catfish farming leads to environmental degradation, susceptible to disease and high consumption of water. Modeling is a solution that helps to better control the biological processes in the pond, optimizes feed supply and water use. In this study research data collected, measured and analyzed from experimental catfish ponds in Can Tho, together with comparative data sets from other related studies were used to simulate the nutrition and development processes of fish in the ponds. The mathematic equations of plankton development processes were built and solved by the fourth-order RungeKutta method and coded in the Matlab programming language. The phytoplankton simulated and corrected at 28 and 30 o C showed that blue algae is the most grown algae (> 16 ...