Tổng hợp tài liệu Công Nghệ - Môi Trường tham khảo cho học sinh, sinh viên.
Bài báo này trình bày một số dẫn liệu nghiên cứu mới về phân bố quần xã thực vật phù du ở phía tây Vịnh Bắc Bộ có được từ hai đợt khảo sát vào mùa khô (tháng 10/2003) và mùa mưa (tháng 8/2004). Các mẫu TVPD được thu thập ở 21 trạm (tháng 10/2003) và 32 trạm (tháng 8/2004) trải đều trên toàn khu vực phía tây Vịnh, tại các độ sâu khác nhau, với k...
15 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 491 | Lượt tải: 0
The report presents the results of studies on the variation of content and effective of biological treatment of seven heavy metals (Pb; Hg; As; Cd; Cr+3; Cu; Zn) in wastewater from seafood processing industries on the Aerotank at optimum load around 2.52- 5.87 (KgCOD/m3.24hours) and optimum hydraulic retention time about 18 hours.
8 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 735 | Lượt tải: 2
This paper presents results of the pilot study on the application of a quantitative method for the conservation potential assessment of the seagrass ecosystem which proposed by Kelly et al (2001). According to this method, the Relative Exposure Index, REI is used for the explanation of the relationship between sea grass ecological system and en...
10 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 794 | Lượt tải: 0
The mainly waste sources, which impact on water environment of Thi Nai lagoon is the domestic activities. The domestic wastes together with matters from Kon river resulted in eutrophication with high levels of nutrient (especially ammonia and phosphate) organic matters and low level of dissolved oxygen from the top toward Chim hillock. Bacteria ...
12 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 581 | Lượt tải: 0
Mesophilic sulfate-reducing bacteria were well known as a factor to cause microbial metal corrosion for long time ago. Recently, they have been discovered as33 organisms that can degrade crude oil in anaerobic condition. In the present work, it firstly reported that mesophilic sulfate-reducing bacteria isolated from Vietnam can also utilize cru...
13 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 566 | Lượt tải: 0
Fisheries acoustic data collected in 2005 were used to estimate stock biomass and spatial distribution of Yellowstrip scad the Southern Sea of Vietnam. Standing stock biomass of fish was estimated in the ranges from 177 - 351 thousand tons. Stock structure and distribution of Yellowstrip scad were differences seasonally. In the southwest monsoo...
12 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 672 | Lượt tải: 0
This paper clarifies the environmental pollution issue at the Titanium exploitation site of Thien Ai, Bac Binh district, Binh Thuan province. Pollution of mineral oil, radioactivity (α, β), organic and bacteria (total coliforms) and salinisation to the surroundings have been observed. Except organic and bacteria, the other kinds of pollution are...
12 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 689 | Lượt tải: 0
Cu Lao Cham communities (Quang Nam province, Vietnam) have become the managers when uncontroled fishing in coral reef and seagrass areas, as well as marine pollution threated negatively to resources and environment in the marine protected area (MPA). The application of new management approach to encourage the community involvement as co-manager...
17 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 809 | Lượt tải: 0
The paper presents researched results on simulation and calculation of wind-induced flow and pollutant transport in West Lake - Hanoi using the non-commercial EFDC computer code developed under the support of the Environmental Protection Agency (EPA) of the US. The West Lake model, input/output data processing, and the presentation of calculated...
8 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 712 | Lượt tải: 0
This paper aims to present the results of the water quality status and evaluation of wastewater receiving capacity in Dong Nai river. The assessment of the wastewater sources receiving capacity was carried out by volume preservation method with 4 sections of Dong Nai river. The results of section 1 and 2 showed polluted concentration such as TSS...
14 trang | Chia sẻ: honghp95 | Ngày: 30/11/2020 | Lượt xem: 709 | Lượt tải: 1
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