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Ngo An The Nguyen Giang Thi Huong Nong Duong Huu See Linda 《Environmental science and pollution research international》2022,29(28):42037-42054
Environmental Science and Pollution Research - This research developed an agent-based model (ABM) for simulating pollutant loads from pig farming. The behavior of farmer agents was captured using... 相似文献
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Kosuke Kawai Luong Thi Mai Huong Masato Yamada Masahiro Osako 《Journal of Material Cycles and Waste Management》2016,18(3):517-526
The organic fraction of municipal solid wastes in Southeast Asia, which has a high moisture content, accounts for a large proportion of total waste. Local governments need to pay adequate attention to the composition of wastes to determine alternative waste management technologies. This study proposed the use of a triangle diagram to describe changes in proximate composition and rates of successful source separation of municipal solid waste and to identify technical challenges about alternative waste management technologies such as incineration, composting, and refuse-derived fuel production based on physical and proximate composition analysis of household waste sampled in Hanoi, Vietnam, as a case study. The analysis indicated the effectiveness of different types of source separation as well as different levels of successful achievement of source separation as an adjustment mechanism for the proximate composition of waste. Proper categorization of wastes for source separation is necessary for the appropriate use of alternative waste management technologies. The results showed that, at a source separation rate of just greater than 0.52 in a three-way separation scheme, the waste separated as combustible waste would be suitable for incineration with energy recovery. Based on well-designed schemes of source separation, alternative waste management technologies can be applied. 相似文献
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Drivers of Forest Cover Dynamics in Smallholder Farming Systems: The Case of Northwestern Vietnam 总被引:1,自引:0,他引:1
The national-scale forest recovery of Vietnam started in the early 1990s and is associated with a shift from net deforestation to net reforestation. Large disparities in forest cover dynamics are, however, observed at the local scale. This study aims to unravel the mechanisms driving forest cover change for a mountainous region located in northwest Vietnam. Statistical analyses were used to explore the association between forest cover change and household characteristics. In Sa Pa district, deforestation rates are decreasing, but forest degradation continues at similar rates. Deforestation is not necessarily associated with impoverished ethnic communities or high levels of subsistence farming, and the largest forest cover dynamics are found in villages with the best socio-economic conditions. Our empirical study does not provide strong evidence of a dominant role of agriculture in forest cover dynamics. It shows that empirical studies on local-scale forest dynamics remain important to unravel the complexity of human–environment interactions. 相似文献
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Nguyen Lan Huong Nguyen Tien Dung Tran Thi Viet Nga Nguyen Duc Luong Tran Hoai Son Nguyen Thuy Lien Nguyen Thi Huong Nguyen Hoang Giang Nguyen Tan Phong Nguyen Ngoc Tuan Isawa Tomoo Ta Yasutaka Sato Ryoichi 《Environmental science and pollution research international》2022,29(28):41983-41991
Environmental Science and Pollution Research - Steel slag is an industrial by product of steel manufacturing processes and has been widely utilized within civil and construction materials for road... 相似文献
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Da Le Nhu Hoang Anh Quoc Hoang Thi Thu Ha Nguyen Thi Anh Huong Duong Thi Thuy Pham Thi Mai Huong Nguyen Tien Dat Hoang Van Chung Phung Thi Xuan Binh Le Huu Tuyen Tran Cao Son Dang Thu Hien Vu Ngoc Tu Nguyen Trong Nghia Le Thi Phuong Quynh 《Environmental science and pollution research international》2021,28(9):10622-10632
Environmental Science and Pollution Research - Antibiotic residues and antimicrobial resistance in surface water are issues of global concern, especially in developing countries. In this study, the... 相似文献
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Yeo Sang Gu Nhai Nguyen Thi Huong Dong Jong-In 《Journal of Material Cycles and Waste Management》2018,20(3):1615-1624
Journal of Material Cycles and Waste Management - Although waste-to-energy (WtE) may reduce the amount of waste disposed and recover the heat in the form of electricity or steam, it has limitations... 相似文献
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高分子螯合剂的制备,表征及性能研究 总被引:3,自引:1,他引:2
高分子量的聚丙烯酰胺,通过发生在侧基上的Mannich反应,使之带有螯合基团。高分子的结构经约外光谱和核磁共振氢谱得到确证。考察了聚合物对Ni^2+离子的螯合能力,比较了经胺化改性及酸化所得的螯合剂对Ni^2+、Cu^2+、Zn^2+的螯合能力,研究了酸度对螯合剂螯合能力的影响。结果表明,制得的具有螯合侧基的高分子能对重金属离子有效螯合,且螯合能力几乎与体系的酸度无关。 相似文献
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Tho Dinh Son Van Nghia Phan Trung Vu Nguyen Anh Huong Nguyen Lan Anh To Kim 《International Journal of Green Energy》2016,13(7):720-729
To date, non-food vegetable oil has been considered as the primary source for biodiesel production. Rubber seed oil has high acid value (34 mgKOH/g) and can be used for biodiesel synthesis. The purpose of this study was to investigate esterification of fatty acid, which derived from rubber seed oil, in a plug flow reactor system at high temperature and low methanol consumption. Response surface methodology was applied for design experiment and optimization of esterification reaction. Temperature, methanol consumption, and sulfuric acid were chosen as variables to examine their influence in a conversion to methyl ester. At 140°C, at 5:1 methanol to fatty acid ratio (by mole), H2SO4 1.5 (%v/w), and space time 20 min, the conversion to methyl ester attained 98.2%. Fourier transform infrared spectroscopy (FTIR) and gas chromatography-Mass spectrometry (GC-MS) were used for analysis and to confirm the formation of methyl ester. Methyl ester was characterized for biodiesel fuel properties in accordance to ASTM standard. 相似文献
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Poonia Komal Singh Pardeep Singh Archana Thakur Sourbh Van Le Quyet Ahamad Tansir Raizada Pankaj Wang Chuanyi Nguyen Lan Huong Nguyen Van-Huy 《Environmental Chemistry Letters》2023,21(1):265-283
Environmental Chemistry Letters - The rising energy conflicts and environmental pollution are calling for the rapid development of advanced techniques such as photoelectrocatalysis to... 相似文献