TimTaiLieu.vn - Tài liệu, ebook, giáo trình, đồ án, luận văn

TimTaiLieu.vn - Thư viện tài liệu, ebook, đồ án, luận văn, tiểu luận, giáo trình các lĩnh vực CNTT, Ngoại ngữ, Luật, Kinh doanh, Tài chính, Khoa học...

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: 834 | 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: 580 | 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: 588 | 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: 586 | 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: 551 | 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: 629 | Lượt tải: 0
Material flow analysis and energy balance analysis as technical tools for wastewater pollution control in textile and dyeing industry – A case study
Abstract. Quantification of material flows and energy balance in production lines as well as in waste management systems and illustrative presentation of the flows are useful tools for decision making in both cleaner production and pollution control. In this study, using STAN software, the authors have analyzed the material flows, and, using SAN...
10 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 575 | Lượt tải: 0
Quantification of pollutants mass and energy consumption as a tool for industrial wastewater pollution control in steel industry
Abstract. Quantification of mass flows in production lines and waste treatment lines, as well as quantification of energy consumption at a factory is always challenges in cleaner production and pollution control decision making. The case study has conducted at a representative steel making complex in Vietnam, simulating the material flows of wat...
13 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 629 | Lượt tải: 0
Willingness-To-Pay for water service of people in a coastal commune – A case study in Vinh Xuan commune, Phu Vang district, Thua Thien Hue province
Abstract. Nowadays, clean water plays a vital role in the life but many inhabitants in Vinh Xuan, a coastal commune (Thua Thien Hue, Viet Nam), are facing the clean water shortages. This paper presents the results of water use situation, Willingness-To-Pay (WTP) and analysis of the factors affecting WTP for water service of residents in Vinh Xua...
8 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 483 | Lượt tải: 0
Assessment of usage conditions of septic tanks in Ha Noi and Hai Phong
Abstract. The study had been conducted in 2017 - 2018 to generate usage conditions of septic tanks in Ha Noi and Hai Phong through: (1) collecting information on usage condition of septic tanks by interview survey; and (2) obtaining analytical results of wastewater inflowing to and out flowing from the septic tanks selected by interview survey r...
7 trang | Chia sẻ: thanhle95 | Ngày: 10/07/2021 | Lượt xem: 510 | Lượt tải: 0