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Application of remote sensing and GIS for assessing the level of change of land use status in the coast of Ngoc Hien district (Ca Mau province) due to the impact of sea level rise
Abstract Today, environmental hazards and challenges are no longer confined to the national or regional scale but on the global scale. One of the biggest challenges for humanity is the natural disasters, global warming and sea level rise. The natural disasters causing serious consequences for human life, such as: Storms, floods, earthquakes, ts...
11 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 476 | Lượt tải: 0
Potential exploitation reserves of middle - upper Pleistocene aquifer (qp2-3) in Ca Mau province
Abstract The paper presents the results of evaluating and determining the potential exploitation reserves of groundwater in Ca Mau province. In particular, the study has identified the regional hydrogeological parameters, assessed potential exploitation reserves of groundwater, forecasted water level fluctuations, determined quantities of groun...
13 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 490 | Lượt tải: 0
Some results of research and forecasting of groundwater salinization in the coastal zone of Soc Trang province
Abstract In recent years, the situation of salinity intrusion is very complicated and becomes more serious in the coastal area of Soc Trang province. In this research, SEAWAT modified water density flow model was used to forecast the salinity intrusion for Holocene aquifer (qh) and upper Pleistocene aquifer (qp3) according to the water use plan...
10 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 426 | Lượt tải: 0
Research on marine environment and coral distribution on Nam Yet island using VNRedsat-1 and QuickBird images
Abstract Based on the processing of VNRedsat-1 and QuickBird images in the area of Truong Sa archipelago, the research results showed the efficiency of assessing marine environmental characteristics in surroundings of these islands. In this paper, we presented the research results on Nam Yet island and adjacent area. The marine parameters in th...
14 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 503 | Lượt tải: 0
Impact of sand mining on sediment transport and morphological change of Hai Phong coastal area
Abstract The paper presents the results of simulating the impact of sand mining on sediment transport and morphological change in Hai Phong coastal area based on Delft3D model. Scenario groups are established: Present scenarios without sand mining and simulated scenarios of the present sand mining (assuming 30% sand compared to plan). The scena...
14 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 736 | Lượt tải: 0
Removal of organic matters from piggery wastewater in anaerobic moving bed biofilm reactor (MBBR)
Abstract. The objective of this study is to investigate the performance of Anaerobic Moving Bed Biofilm Reactor (MBBR) on the removal of organic matters (using COD, BOD5 and TSS values) in piggery wastewater using two kinds of carrier: Polyurethane (PU) and Polyethylene (PE) - Different organic loading rates (OLRs) varying from 4.0 to 10 gCOD/l/...
11 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 482 | Lượt tải: 0
Enhancement of water disinfection efficiency using UV radiation with the aid of a liquid-filmforming device
Abstract. This study presents results for the use of UV radiation and a liquid-film-forming device (LFFD) for disinfection of water. Escherichia coli was used as a model microorganism for examining the bactericidal performance of UV. Bacterial inactivation was conducted in a disinfection apparatus with various conditions of UV dosages, air flow ...
8 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 540 | Lượt tải: 0
Evaluating future water quality of urban rivers in Ha Noi under effect of urbanization and climate change - The application of weap model for Cau Bay river
Abstract. Every day, up to 750,000 cubic meters of wastewater in Ha Noi metropolitan areas is discharged directly into rivers and lakes, of which only 10 % is treated to the Vietnamese standards. According to the water drainage development master plan for the capital city of Ha Noi until 2030, the government aims at dealing with flood control an...
8 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 542 | Lượt tải: 0
Nutrient recovery and pollutant removal from piggery wastewater by Spirulina cultivation
Abstract. Spirulina is noticed for great applications on food supplements, animal feeds, pharmaceutical, cosmetics, biofuel, fertilizer, etc. Spirulina cultures in wastewaters could enhance the feasibility of commodities due to its ability to reduce the cost of biomass production and remove pollutants in wastewaters. This study investigates the ...
8 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 502 | Lượt tải: 0
Effects of water management and soil type on greenhouse gases emission from rice production in An Giang province
Abstract. Mekong delta has been well known for rice production of Viet Nam and had great contribution of rice export of Viet Nam and for acid sulfate and alluvial soils. Greenhouse gases emission from rice has been raised for its contribution to global warming. The technique of An Giang alternate wetting and drying (AAWD) has been recommended us...
9 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 536 | Lượt tải: 0