Distribution of heavy metals in surface water, suspended particulate matter, sediment and clam (meretrix lyrata) from downstream of saigon-Dong Nai River, Vietnam - Tran Tuan VietThis study shown that some contaminated heavy metals (Cu, Pb, Zn, Cd and Cr) in surface water could accumulate in SPM, sediment and clam at the coastal area near the estuary of SGDN River. The concentrations of metals in environmental components and Clam Meretrix Lyrata at Can Thanh are higher than at Tan Thanh. Only correlations between Cr conce...
7 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 554 | Lượt tải: 0
Assessment of urban environmental sustainability in hue city as a case study - Tran Anh TuanThe assessment of urban environmental sustainability in Hue city is considered the first case in Viet Nam as to practical use of the indicator set developed by MONRE. In general, the urban environmental sustainability of Hue city was ranked “fairly good”. It proved that the proposed 5 – step assessment process and the recommended barometer with ...
6 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 629 | Lượt tải: 0
Application of acid modified red mud for lead ion removal from aqueous solution - Pham Thu TrangBased on the results presented in this study, the following conclusions can be recommended: Raw red mud generated from alumina production can be used as a low cost adsorbent for Pb(II) removal from aqueous solution. The Pb(II) removal efficiency of red mud can be enhanced by the modification using HCl solution. The highest modification efficien...
9 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 543 | Lượt tải: 0
Assessment of farmers’ prone state to natural disasters: a case of mainstream hydropower development in the lower Mekong Delta, VietnamResult of the study provides a comprehensive view at the prone state of the Mekong Delta under baseline conditions of hydropower development. Communities in Vietnam Mekong Delta have main income sources from rice farming, fishing and aquaculture, so changes in floods pattern or salinity can directly affect people’s livelihoods. In Vietnam, most ...
8 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 628 | Lượt tải: 0
Investigate the efficiency of recovery of recyclables from household wastes in Dau Tieng town,Dau Tieng district, Binh Duong provinceRecyclables recovered by scrap buyers: The weight of recyclables purchased from households in the region accounts for 98.84 % of the total weight of recyclables purchased by individuals. The ratio of the weight of recyclables purchased from the other sources (markets, offices, stores, etc.) is only 1.16 %. The average weight of recyclables purch...
7 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 664 | Lượt tải: 0
Modification of titanium dioxide nanomaterials by sulfur for photocatalytic degradation of methylene blue even under visible light - Nguyen Tan LamModification of TiO2 by sulfur enhanced the photocatalytic activity of the TiO2 leading to effective use of the synthesized materials even under visible light region. The obtained results indicated that sulphate ions adsorbed or penetrated of into the crystal lattice of TiO2 leading to decrease band gap energy of titania in anatase form from 3.2...
7 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 491 | Lượt tải: 0
Performance of h2o2 - Aerated biofilter in treatment of wastewater containing humic acid - Le Van TuanH2O2 could be used to improve the effectiveness of activated sludge process. Adding H2O2 into the modified aerated biofilter was to improve treatment efficiency of refractory organic compound (humic acid) and was to reduce amount of sludge waste. The activated sludge used for preparing the ABF was developed well and stably in the range of H2O2 c...
7 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 478 | Lượt tải: 0
Effects of climate variations on hand-Foot-mouth disease in Ho Chi Minh city - Tran Cong ThanhThe association between climate variations and epidemics has been mentioned in literature, in which climate is one of the main factors affecting the distribution and outbreak of epidemics. Therefore, it is important and essential to treat past temporal patterns of climate fluctuations and HFMD as empirical analogues of future changes. To the bes...
8 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 620 | Lượt tải: 0
Assess the denitrification potential of fermented biosolids based on their specific denitrification rate (sdnr)There are some conclusions that can be drawn from this experiment: 1. The larger scale of the same conditions of earlier fermentation and dark-fermentation batch tests, despite produced a higher C/N ratio of 10.34 ± 0.17 and 10.14 ± 0.12; however once again confirmed that even at optimum condition, the C/N ratio of fermented biosolids would stil...
8 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 573 | Lượt tải: 0
Water management and methane emission from rice cultivation: a case study in An Giang province, Viet NamAt the beginning of the crop (5 days after sowing), the CH4 emission increased gradually and there were no significant differences among treatments (p<0.05). In this stage, all plots were stagnant to keep soil anaerobic and limit grass germination. In the tillering stage (30-40 days after sowing), CH4 emission was the highest in the 3 treatments...
7 trang | Chia sẻ: honghp95 | Ngày: 02/12/2020 | Lượt xem: 590 | Lượt tải: 0
